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Stent combined with surgical delivery system (e.g., surgical tools, delivery sheath, etc.)

Subclass of:

623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor

623100100 - ARTERIAL PROSTHESIS (I.E., BLOOD VESSEL)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
623100120 Expandable stent with constraining means 186
Entries
DocumentTitleDate
20120203324NON-COMPLIANT MULTILAYERED BALLOON FOR A CATHETER - Multilayer balloon for a catheter comprising at least a first layer, a second layer, and a third layer having a combined wall thickness. The first layer is made of a first polymer material having a first maximum blow-up-ratio. The second layer is made of a second polymer material having a second maximum blow-up-ratio greater than the first maximum blow-up-ratio. The second layer is an inner layer relative to the first layer. The third layer is made of a third polymer material having a third maximum blow-up-ratio greater than the second maximum blow-up-ratio. The third layer is an inner layer relative to the second layer. The at least first, second, and third layers define a compliance less than that of a single layer balloon made of the first polymer material with a wall thickness equal to the combined wall thickness.08-09-2012
20130030513OSTIAL STENT - An ostial stent for use in improving vessel patency includes a manually-expanding tube section that presents a distal opening of the ostial stent and a pre-shaped self-expanding SMA tube that presents a proximal opening of the ostial stent. The tubes are attached end-to-end to define a passage extending continuously between the openings. The tubes have a generally cylindrical shape in a radially contracted condition so that the tubes can be inserted into the patient. The self-expanding SMA tube is self-expandable from the radially contracted condition to a memory flared condition.01-31-2013
20110208286CATHETER ASSEMBLY AND METHOD FOR TREATING BIFURCATIONS - An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.08-25-2011
20090204197Catheter Device - A catheter device having a shaft that extends from a proximal end to a distal end to carry on its distal end a self-expanding implant for intraluminal advance on a guidewire and delivery of the implant to an implant site by proximal withdrawal of a longitudinal sheath that lies radially outside the implant in the catheter, the catheter including a first shaft element to pull the sheath proximally and a second shaft element to push the implant distally to prevent the implant moving proximally with the sheath when the sheath is pulled proximally, wherein the sheath is freely rotatable with respect to the first shaft element during the said intraluminal advance and, during proximal movement, is caused to abut the first shaft element at an abutment position by a reduced inner diameter portion of the sheath proximal of the abutment position.08-13-2009
20120172962LOADING BASKET FOR A STENT DELIVERY SYSTEM - A loading basket is secured at its proximal end to a portion of a delivery device. The stent engages with the interior of the stent basket when loaded onto the delivery device to prevent shifting or movement of the stent during delivery of the stent to a desired location within the bodily lumen. In at least one embodiment, the loading basket has a proximal end, a distal end, and a braided surface. The loading basket comprises a proximal end portion, a proximal transition portion, a body portion, a distal transition portion, a distal end portion, and an angled inward distal end. When loaded onto the delivery device, the outer surface of the stent contacts at least the angled inward distal end of the delivery device and movement of the stent is prevented.07-05-2012
20100087909CATHETER BALLOON SYSTEMS AND METHODS - An apparatus for treatment of a bifurcation of a body lumen, the bifurcation having a main vessel and a branch vessel, the apparatus includes a bifurcated balloon with a first branch portion and a second branch portion, the second branch portion including an inflatable portion adapted to extend toward the branch vessel, the bifurcated balloon also having a proximal shaft portion and a distal shaft portion connected to the inflatable portion of the second branch portion, and wherein the first branch portion and the second branch portion each have a longitudinal axis, the axis of the first branch portion being substantially parallel to the longitudinal axis of the second branch portion.04-08-2010
20090276029HELICAL STENT - An expandable balloon for insertion in a fluid conduit of a human or animal body is movable between a collapsed condition and an expanded condition. The balloon has, when in the expanded condition, a center line which follows a substantially helical path. The balloon can be combined with a stent such that the stent is expandable by the balloon from a collapsed condition to an expanded condition.11-05-2009
20100016940BIODEGRADABLE SELF-EXPANDING PROSTHESIS - Disclosed herein is a biodegradable prosthesis that includes a first end, a second end, and an elongate tubular body with a lumen therethrough. The prosthesis can have a first layer comprising a set of flexible interbraided bioabsorbable filaments, and optionally a set of flexible interbraided metallic filaments. Also, the prosthesis can have a second layer comprising a porous thermoplastic material that can be either an outer layer or an inner layer relative to the first layer. The prosthesis can include other features including branch apertures, folded portions, and attachment mechanisms for the first and second layers.01-21-2010
20100016937Twisting Bifurcation Delivery System - A catheter assembly includes a catheter shaft having a proximal portion and a distal portion, the catheter shaft having a torsionally weakened region at the distal portion, the torsionally weakened region including one or more portions that are recessed from an outer surface of the catheter shaft. The assembly also includes a primary guidewire lumen defined in the catheter shaft and sized to receive a primary guidewire, and an inflatable member positioned at the distal portion of the catheter shaft.01-21-2010
20130085562APPARATUS FOR AND METHOD OF PULLING A TENSILE MEMBER FROM A MEDICAL DEVICE - Mechanisms for pulling a tensile member a predetermined distance from a medical device having an intracorporeal end and an extracorporeal end are disclosed. Such mechanisms may be safely operated using a robot, two hands, or in some embodiments, only one hand. Such mechanisms may include one or more cams, drums, or pulley-like members and a lever, and may be physically coupled to an extracorporeal portion of the medical device.04-04-2013
20110190867DIRECTIONAL EXPANSION OF INTRALUMINAL DEVICES - Methods and devices useful, for example, in the field of angioplasty and stenting are disclosed. In some embodiments, the methods, devices and kits are configured for directional expansion inside a lumen, for example of a blood vessel obstructed by plaque. In some embodiments, the directional expansion displaces the plaque in a desired direction.08-04-2011
20130046372DELIVERY SYSTEM FOR NEW SLIDE-AND-LOCK BIOABSORBABLE STENT - A transcatheter delivery device for delivering a slide-and-lock stent to a stenosed lumen consists of an outer cannula (02-21-2013
20130046371ENDOLUMINAL PROSTHESIS HAVING MULTIPLE BRANCHES OR FENESTRATIONS AND METHODS OF DEPLOYMENT - A system for facilitating deployment of an endoluminal prosthesis may include a main tubular graft body including a proximal end opening, a distal end opening, a lumen, and a sidewall. A branch may extend from the sidewall and may include a first end opening, a second end opening, and a lumen. A fenestration may be disposed in the sidewall and positioned distal of the second end opening of the branch. A wire segment may include a proximal portion positioned proximal of the proximal end opening and a distal portion positioned distal of the distal end opening. The wire segment extend through the fenestration and through the lumen of the branch in a preloaded configuration.02-21-2013
20090192586Delivery Systems for Prosthetic Heart Valves - A delivery system for delivery of an implantable stented device to a body lumen, the device having a plurality of structures at its proximal end, wherein the delivery system comprises a first body portion removably attached to a second body portion and wherein the second body portion includes a plurality of attachment components at its distal end for attachment to the plurality of structures at the proximal end of the device.07-30-2009
20090192585Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A delivery system for delivering a stented prosthetic heart valve to a lumen of a patient, the delivery system including a tubular body having a proximal end and a distal end, and a plurality of wires extending from the distal end of the tubular body, wherein each of the wires has a distal end that is coiled for engagement with a stent of a stented prosthetic heart valve.07-30-2009
20090192583Ordered Coatings for Drug Eluting Stents and Medical Devices - A system for treating a vascular condition comprises a therapeutic agent eluting stent having a layered coating on the stent framework. The coating releases therapeutically effective amounts of one or more therapeutic agents in and ordered sequence and over a selected time period. Another embodiment of the invention includes a method of treating a vascular condition by placing a stent having a layered coating at a treatment site and delivering a therapeutically effective amount of one or more therapeutic agents at the treatment site in an ordered sequence and over a selected time period.07-30-2009
20110196470LASER ABLATED ELASTOMER SHEATH PROFILES TO ENABLE STENT SECUREMENT - The stent placement dilation balloon assembly comprises a catheter having a distal end, a distal end portion, and a proximal end, a balloon mounted to, about, and around the distal end portion of the catheter. The assembly further includes an elastic sheath positioned about and around the balloon. The outer surface of the sheath includes a profile which encourages stent securement. A stent is mounted on the sleeve for placement in a vessel in a human body.08-11-2011
20110196469Navigation Guide Wire Through an Anatomical Structure Having Branched Ducts - A navigation guide wire has a proximal portion with a first flexural rigidity, a distal portion with a second flexural rigidity greater than or equal to the first flexural rigidity, and an intermediate potion with a third flexural rigidity substantially less that both said first and second flexural rigidities. This allows a considerable direction change between said proximal and distal portions.08-11-2011
20110202123ANATOMIC NEEDLE SYSTEM - A needle system for providing fluidic and/or instrument access to an internal body structure. Exemplary embodiments may include non-linear needles having anatomically appropriate lengths and curvatures. Some exemplary embodiments may include a pivotable base, which may assist in stabilizing the needle system with respect to a body structure and/or may be reconfigurable into a safety guard position. Exemplary needle systems may include expandable conduits providing fluidic and/or instrument pathways into internal body structures.08-18-2011
20100076541STENT DELIVERY SYSTEM - A stent delivery system includes a distal-side tube having a guide wire lumen, a proximal-side tube, a fixing tube at which a proximal portion of the distal-side tube and a distal portion of the proximal-side tube are fixed and which has an opening communicating with the guide wire lumen, a stent accommodation tubular member which encloses a distal side of the distal-side tube and is slidable toward a proximal end of the distal-side tube, a stent accommodated inside the stent accommodation tubular member, and a pulling wire whose one end portion is fixed to the stent accommodation tubular member and which extends inside the proximal-side tube for moving the stent accommodation tubular member toward a proximal side by being pulled toward the proximal side.03-25-2010
20100076540SYSTEM AND METHOD FOR DELIVERING A BIFURCATED STENT - A system and method for delivering and assembling a bifurcated stent in a bifurcated vessel having a first lumen and a second lumen. The system and method includes the use of three balloon catheters wherein at least one of the catheters is a fixed wire catheter. A first segment of the bifurcated stent having a stem portion, a first leg portion, a longitudinal bore extending therethrough and a branch aperture formed in the side wall is mounted on two of the balloon catheters and delivered to the treatment site where it is implanted into the first lumen. A second segment of the bifurcated stent having a proximal end, a distal end and a longitudinal bore extending therethrough is mounted on the third balloon catheter and is delivered to the treatment site such that the distal end extends into the second lumen and the proximal end extends into longitudinal bore of the first segment. The second segment is then implanted into the second lumen and secured to the branch aperture of the first segment to form a bifurcated stent.03-25-2010
20100076539SYSTEM FOR INTRODUCING AN INTRALUMINAL ENDOPROSTHESIS AND METHOD FOR MANUFACTURING SUCH A SYSTEM - A system for introducing an intraluminal endoprosthesis (03-25-2010
20120245669MEDICAL CATHETER DEVICE - Medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter including a distal portion where a balloon attaching a vascular stent is provided, and a sheath into which the catheter is inserted and to be moved relative to the catheter between the section where it covers the balloon on which a vascular stent is mounted and the section where it exposes the vascular stent mounted on the balloon. The sheath comprises a first tubular member covering the distal portion at which the balloon is provided, and a second tubular member covering the proximal portion of the catheter and connected with the first tubular member. The first tubular member is formed of a tubular member capable of flexible deformation and the second tubular member is formed of a tubular member less extensible in the axial direction than the first tubular member.09-27-2012
20120245668DEVICE AND METHOD FOR DELIVERING A VASCULAR DEVICE - A device and method for delivering a vascular device to a target site is provided that allows an orientation of the vascular device at the target site to be adjusted by a user. In general, the delivery device includes an outer tubular member, an intermediate tubular member within the outer tubular member, and an inner member that can move axially within the intermediate tubular member. Each of the members defines a proximal end and a distal end. The intermediate and outer tubular members are fixed at their respective proximal ends, but are not fixed at their proximal ends. Thus, a torque applied to the proximal end of the intermediate tubular member is at least partially transmitted to the distal end of the intermediate tubular member, allowing the user to rotate an attached vascular device by rotating the proximal end of the intermediate tubular member.09-27-2012
20100023107SIDE BALLOON IDENTIFIERS AND METHODS FOR RADIAL AND AXIAL ALIGNMENT IN A CATHETER ASSEMBLY - A catheter assembly and related methods having a main balloon, a branch balloon arrangement and a stent. The branch balloon arrangement can include a branch balloon and at least one orientation indicator. The orientation indicator can include visible markings on portions of the side balloon or on inflation segments coupled in fluid communication to the side balloon. The side balloon can have a specific color that is different from a color of the main balloon for improved visualization of the side balloon. The orientation indicator can be helpful in aligning the side balloon relative to features of the stent. The stent can include a side branch opening located between distal and proximal open ends of the stent.01-28-2010
20100211155Electrical Conduction Block Implant Device - The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.08-19-2010
20130079863Loading and Delivery of Self-Expanding Stents - A method of deploying a stent includes providing a delivery system with the stent loaded in a reduced diameter configuration between an inner catheter and an outer sheath, the stent including a covering positioned on a luminal wall surface thereof, the inner catheter including a radially outwardly extending protrusion that extends into the covering but does not intersect a plane along the stent luminal wall surface, advancing the delivery system to a stenting site, and withdrawing the outer sheath to deploy the stent at the stenting site.03-28-2013
20100145431DELIVERY SYSTEM FOR MEDICAL DEVICES - The invention is directed a delivery system for implantation a self-expanding medical device in a body which includes a control handle and a catheter portion. The catheter portion includes an outer restraining member which covers the collapsed, medical device, an inner catheter member having a distal end including a region upon which the medical device is mounted, and an outer sheath which is removably attached to the control handle. The outer sheath creates a conduit for the catheter portion to prevent the inner catheter member from moving axially when the outer restraining member is retracted. The control handle has a rotatable thumbwheel to actuate a retraction mechanism attached to the proximal end of the outer restraining member which moves the restraining member in a proximal direction to deploy the medical device.06-10-2010
20130035749DELIVERY DEVICE HAVING A VARIABLE DIAMETER INTRODUCER SHEATH - An introducer sheath has a tubular structure that is expandable and contractible to a desired diameter. In a first configuration, the tubular structure has a first diameter and a first axial length. In a second configuration, the tubular structure has a larger second diameter and a shorter second axial length. An actuator includes an inner member and an outer member. In response to relative movement between the members and the tubular structure in a first or second direction, the actuator allows the tubular structure to move to the respective between the first or second configurations. The tubular structure can be a braided structure. The members can form an everted tubular sleeve. A proximal end of the outer sleeve is movable relative a proximal end of the inner sleeve. A locking system can fix the introducer sheath at a desired diameter.02-07-2013
20130035750SYSTEMS, METHODS AND DEVICES FOR ABLATION, CROSSING, AND CUTTING OF OCCLUSIONS - Ablation, crossing, and cutting systems, devices and associated methods, including a crossing device, comprising, in combination: a spring-enhanced handle and body configured to controllably extend and retract a blade within a microcatheter for addressing an occlusion within a vessel of a patient to provide improved access for supplemental treatment and reperfusion.02-07-2013
20130035748IMPLANT SYSTEM INCLUDING GUIDING ACCESSORY AND METHODS OF USE - A guiding accessory, for use in conjunction with a guidewire and a catheter of an implant system, facilitates passage of an elongate and flexible conductor of a relatively compact therapy delivery device to an implant site, for example, within the cardiac venous system, when a therapy generator of the device is held within a distal portion of the catheter, and the catheter, device and guiding accessory are advanced along the guidewire. The guiding accessory includes a helically extending wall that forms a lumen within which the device conductor and guidewire extend. After advancing the catheter, guiding accessory and device to the implant site, the helically extending wall is unwound from around the device conductor, for removal, preferably, by pulling proximally on a tension line, which is attached to a proximal end of the wall.02-07-2013
20090177260Deployment catheter - An inner catheter (07-09-2009
20120265286ADJUSTABLE BIFURCATION CATHETER INCORPORATING ELECTROACTIVE POLYMER AND METHODS OF MAKING AND USING THE SAME - A medical device having at least one static state, at least one activated state, and at least one active region including electroactive polymer (EAP) capable of fine electro-activated movements. The EAP movements include bending components for proper alignment, rotating components for proper fittings, making components more rigid or flexible, and increasing and decreasing the volume of components. The fine movements allow for highly versatile and adaptable medical devices.10-18-2012
20120265284MULTILAYER BALLOON FOR BIFURCATED STENT DELIVERY AND METHODS OF MAKING AND USING THE SAME - An expandable medical balloon useful for treatment at a vessel bifurcation, the balloon having at least one expanded state, the balloon having at least one inner layer and at least one outer layer, the outer layer having at least one cavity therein through which the inner layer protrudes when the balloon is in its at least one expanded state, and methods of making and using the same.10-18-2012
20100042200METHOD AND APPARATUS FOR STENTING - A method and an apparatus to create a more favorable flow regime in a lumen. An artificial shape in the lumen is created to at least one of eliminate flow disturbances and enhance aspects of fluid flow through a treatment site.02-18-2010
20100042199DILATION BALLOON CATHETER AND METHODS OF USE THEREOF - The present invention relates to medical devices for dilating or enlarging strictures or narrowed regions of body vessels. Specifically, the present invention relates to a high pressure dilation balloon catheter that includes an elongate shaft extending between a proximal end and a distal end, the proximal end being adapted for attachment to a source of inflation fluid, and a first lumen extending through the shaft adapted for the passage of the inflation fluid; and a balloon disposed on the distal end of the shaft and having a balloon body extending between a proximal end and a distal end of the balloon. The balloon body includes an inner balloon layer, an outer balloon layer, a middle layer disposed between the inner balloon layer and the outer balloon layer and configured to be substantially free from adhesion to at least one of the inner balloon layer and the outer balloon layer, and a balloon chamber within the first layer, the balloon chamber being in a communication with the lumen of the shaft for inflating and deflating the balloon.02-18-2010
20100042198SINGLE PIECE DOUBLE WALL DILATION BALLOON CATHETER - The present invention relates to medical devices for dilating or enlarging strictures or narrowed regions of body vessels. Specifically, the present invention relates to a high pressure dilation balloon catheter that includes an elongate shaft extending between a proximal end and a distal end, the proximal end being adapted for attachment to a source of inflation fluid, and a lumen extending through the shaft adapted for the passage of the inflation fluid; and a balloon disposed on the distal end of the shaft and having a balloon body extending between a proximal end and a distal end of the balloon. The balloon body includes a first layer, a second layer disposed about at least a portion of the first layer, a plurality of longitudinally extending rib members disposed between the first and the second layers and configured to form a plurality of sealed cavities between the first and the second layers; and a balloon chamber within the first layer, the balloon chamber being in a communication with the lumen of the shaft for inflating and deflating the balloon.02-18-2010
20090157163Retrieval device - A retrieval device is disclosed. The retrieval device may include a sheath including a lumen extending longitudinally through the sheath, an elongate member slidably disposed within the lumen, and a basket at a distal end of the elongate member. The basket may include a plurality of legs formed integrally with the elongate member. The elongate member and the basket may be formed of a single wire, and the legs may be made by splitting a length of the single wire.06-18-2009
20090157160APPARATUS AND METHODS FOR PROTECTED ANGIOPLASTY AND STENTING AT A CAROTID BIFURCATION - Apparatus and methods are described for performing protected angioplasty and stenting of a patient's carotid bifurcation. An integrated catheter system can be configured in a rapid-exchange version or in an over-the-wire version. The catheter system includes a self-expanding stent, a stent delivery sheath, a combination angioplasty balloon catheter and stent pusher catheter, an embolic protection device and, in the rapid-exchange version, an auto-releasing sheath. The method includes: inserting a guiding catheter to the carotid bifurcation; inserting the catheter system through the guiding catheter; advancing the embolic protection device beyond the lesion; positioning the stent and balloon segment of the catheter system at the lesion; releasing the self-expanding stent; pulling the stent delivery sheath back into the guiding catheter; positioning and deploying the protection member; advancing the combination angioplasty balloon catheter and stent pusher catheter and inflating the angioplasty balloon within the lesion; deflating the angioplasty balloon and withdrawing the combination angioplasty balloon catheter and stent pusher catheter and stent delivery sheath together; and aspirating potential emboli through the guiding catheter.06-18-2009
20090157159DEVICE AND METHOD FOR TACKING PLAQUE TO BLOOD VESSEL WALL - A plaque tack device for treating atherosclerotic occlusive disease is formed as a thin, annular band of durable, flexible material having a plurality of barbs or anchoring points on its outer periphery for preventing it from being dislodged. The plaque tack may be used with a balloon angioplasty procedure or as a de novo treatment for blood vessel blockage to reopen the vessel lumen for desired blood flow. It has a width that is small relative to its diameter, to minimize the amount of foreign structure placed in the blood vessel. One or more tacks may be applied in positions along a plaque accumulation site as needed to stabilize the site and/or hold pieces of plaque out of the way of blood flow. The barbs of the tack may be pressed into the plaque and/or blood vessel walls by balloon expansion. Related methods of deployment and delivery devices are provided for insertion of the plaque tack in a compressed state into the blood vessel and expanding it back to its annular shape for holding plaque against the blood vessel walls.06-18-2009
20090157161Percutaneous Nitinol Stent Extraction Device - A minimally invasive catheter system and method for extraction of a shape memory device such as a nitinol stent from inside a tubular organ, is provided. The catheter system comprises a multi-lumen tube with at least one expandable balloon and an extraction device. The multi-lumen tube has multiple ports, which are used for injecting fluid inside the tubular organ and the expandable balloon, and inserting the extraction device. The catheter system is inserted inside the lumen of the tubular organ percutaneously. A cold fluid is injected into the expandable balloon and the lumen of the tubular organ. This cold fluid converts the shape memory device from an expanded state to a collapsed state. The shape memory device in the collapsed state is then removed with the help of the extraction device.06-18-2009
20100106238CATHETER SYSTEM FOR STENTING BIFURCATED VESSELS - A catheter system and method are described for stenting a vessel at a bifurcation or sidebranch of the vessel. The catheter system includes a first balloon catheter, a second balloon catheter and a releasable linking device for holding the first and second balloon catheters arranged in a side-by-side configuration and aligned with one another along a longitudinal axis. The linking device allows the catheter system to be advanced as a unit and helps prevent premature or inadvertent dislodgement of the stent from the catheters, yet is releasable so that one or both of the balloon catheters can be released from the linking device and maneuvered separately from the rest of the catheter system when desired. The method utilizes the described catheter system for stenting bifurcated vessels using a modified “kissing balloons” technique.04-29-2010
20100106235MULTI-LAYER DEVICE WITH GAP FOR TREATING A TARGET SITE AND ASSOCIATED METHOD - Embodiments of the present invention provide medical devices and methods for treating a target site within the body. For example, a medical device includes a multi-layered structure comprising an inner layer disposed within an outer layer, wherein each of the inner and outer layers has respective inner and outer surfaces. The multi-layered structure further comprises at least offset located between the inner and outer layers or formed in the inner and/or outer layers to define at least one gap therebetween such that a majority of the outer surface of the inner layer is spaced apart from the inner surface of the outer layer. The multi-layered structure is configured to be deployed within a lumen such that at least a portion of the outer layer is configured to engage the lumen and the at least one gap is configured to promote thrombosis between the inner and outer layers.04-29-2010
20100106237DEFLECTION CONTROL CATHETERS, SUPPORT CATHETERS AND METHODS OF USE - A deflection and support catheter provided for improved manipulation of elongated medical devices used during percutaneous procedures in difficult to reach situations. In particular, the deflection and support catheters can facilitate placement of guidewires, guide catheters, and intervention devices such as angioplasty balloons and stent delivery devices.04-29-2010
20100106236Self Cleaning Catheter and Methods of Use Thereof - An improved catheter is provided for insertion into a trachea, blood vessel, bladder or urinary tract of a patient. The self cleaning catheter can be easily inserted and removed from the patient without retained, solid components falling into a patient's trachea, blood vessels, bladder, or urinary tract when the catheter is removed from the patient. The self cleaning catheter has a flexible cylindrical sleeve on the exterior of a cylindrical member that can be withdrawn to the interior of the catheter prior to removal from the patient's body. Alternatively, the catheter has a design allowing an end of the catheter to fold inward on itself prior to removal from the patient's body.04-29-2010
20090093871Medical Implant With Internal Drug Delivery System - A system for treating a vascular condition includes a catheter and a stent disposed on the catheter. The stent includes tubing having a wall defining a central lumen and a plurality of holes. The system further includes a therapeutic agent disposed within the central lumen of the tubing. A method of manufacturing a therapeutic agent carrying stent includes inserting a therapeutic agent within a therapeutic agent delivery system into the central lumen of a hollow metal tube and forming a stent framework from the hollow tube.04-09-2009
20100331954IMPLANTABLE MEDICAL DEVICES - A medical device includes a balloon catheter having an expandable member, e.g., an inflatable balloon, at its distal end and a stent or other endoprosthesis. The stent is, for example, an apertured tubular member formed of a polymer and is assembled about the balloon. The stent has an initial diameter for delivery into the body and can be expanded to a larger diameter by inflating the balloon.12-30-2010
20100331953STENT DELIVERY DEVICE - A stent delivery device includes a distal-side tube having a guide wire lumen; a proximal-side tube whose distal portion is fixed to a proximal portion of the distal-side tube; a cylindrical member which encloses a distal side of the distal-side tube and is slidable toward a proximal end of the distal-side tube; a stent accommodated in the cylindrical member; and a pulling member 12-30-2010
20100331952METHOD FOR FILTERING EMBOLIC MATERIAL - The method comprises the steps of advancing a guidewire from a first intermediate location to a further intermediate location which is proximal of the treatment location and, subsequently, advancing a medical device over the guidewire toward the further intermediate location. The method may comprise repeating these steps for additional intermediate locations. In one case the treatment location is in the carotid artery. The treatment location may be at or adjacent to the carotid bifurcation. An intermediate location may be at or adjacent to the aortic arch. An intermediate location may be at or adjacent to the carotid take-off. The medical device may be delivered over the guidewire using a delivery catheter. The delivery catheter and the medical device may be advanced through the vasculature without the use of a guide catheter.12-30-2010
20100331951STENT DELIVERY CATHETER SYSTEM AND METHOD OF IMPLANTING A SELF-EXPANDING STENT WITH EMBOLIC PROTECTION - A catheter system and method for implanting an endoprosthesis such as a stent at a treatment site in a patient's body lumen. The catheter provides a complete system for stent delivery, dilatation, and delivery and/or recovery of an expandable device, such as an embolic protection device, adjacent to the treatment site in the body lumen.12-30-2010
20100030320THIN FILM MEDICAL DEVICE AND DELIVERY SYSTEM - The present invention relates to a delivery system for an intraluminal thin film medical device particularly well suited for occlusion of an aneurysm, vessel side branch or dissection of a body lumen or duct, such as an artery or vein. The delivery system has an outer sheath attached along the distal end of a relatively long and flexible tubular shaft. The outer sheath is capable of constraining the thin film medical device in a longitudinally stretched position, and subsequently being retracted relative to the flexible tubular shaft to release the thin film medical device from the constrained longitudinally stretched position. The delivery system may additionally have a mechanical expansion catheter substantially coaxial too, and slideably engaged within, the outer sheath and an inner lumen substantially coaxial to the outer sheath and incorporated into the flexible tubular shaft.02-04-2010
20100030319COILS FOR VASCULAR IMPLANTS OR OTHER USES - Medical devices comprising implants for use in blood vessels or other body lumens. The implant comprises an elongate member that, in its native configuration, follows a generally helical path. The elongate member is formed of one or more strands that are wound into a coil of minor windings, wherein the coil of minor windings is itself wound into the generally helical path. The one or more strands are formed of materials that provide the elongate member with the desired flexibility. In some cases, the elongate member may be capable of delivering a therapeutic agent. This can be accomplished by, for example, using capsules, swellable materials, corrodable elements, magnetically-sensitive particles, coatings, and/or core wires. Also provided are a method of treating a superficial femoral artery and a method of making an implant.02-04-2010
20100030317BIFURCATION CATHETER ASSEMBLY SIDE CATHETER BRANCH CONSTRUCTION AND METHODS - A catheter assembly includes a main catheter branch and a side catheter branch. The main catheter branch includes a main balloon and a side balloon. The side catheter branch includes a transparent portion along at least a portion of a length of the side catheter branch. The transparent portion of the side catheter branch permits viewing of the side balloon through the transparent portion for alignment of the side balloon relative to the side catheter branch. The catheter assembly can further include a stent, wherein the stent includes a lateral branch opening. The transparent portion of the side catheter branch can also provide viewing of the side balloon through the side catheter branch to help align the side balloon with the lateral branch opening.02-04-2010
20100030316BIFURCATION CATHETER DUAL BALLOON BOND AND METHODS - A catheter assembly includes a main catheter branch having a catheter shaft and a distal end portion. A main balloon and a side balloon are positioned at the distal end portion of the catheter shaft. The main balloon includes a distal waste portion at a distal end thereof and a proximal waste portion at a proximal end thereof. The side balloon includes an inflatable portion, a proximal waste portion, and a distal waste portion, wherein the proximal and distal waste portions define a side inflation lumen. The proximal waste portion of the side balloon and the proximal waste portion of the main balloon are secured to the distal end portion of the catheter shaft at a single bond or connection point to create a proximal balloon joint, wherein the main inflation lumen is in fluid communication with the main balloon and the side inflation lumen.02-04-2010
20100030315BIFURCATION CATHETER ASSEMBLY AND METHODS - A catheter assembly includes a main catheter branch and a side catheter branch. The main catheter branch includes a main balloon, a side balloon and a side inflation member. The side inflation member intersects the side balloon at a location on the side balloon that is offset laterally from a central line passing from a distal most point on the side balloon to a proximal most point on the side balloon. The side balloon is configured to extend radially outward relative to the main balloon when the side balloon is inflated. The side catheter branch can be centrally aligned with the side balloon central line and be positioned laterally adjacent to the side inflation lumen.02-04-2010
20120185030MEDICAL CATHETER APPARATUS - Present invention is a medical catheter apparatus used for implanting a vascular stent into a vessel of a living body comprising a catheter (07-19-2012
20090125093Method and apparatus for introducing expandable intraluminal prosthesis - A stent introducer has a delivery sheath positioned to restrain a self expandable stent. A pull wire is connected with the delivery sheath and extends through a pull wire lumen to enable remote retraction of the delivery sheath. The distal end of the pull wire lumen is associated with a region of weakness in the structure such that the region of weakness is torn on retraction of the delivery sheath.05-14-2009
20090125092METHODS FOR MAKING AN ENCAPSULATED STENT AND INTRALUMINAL DELIVERY THEREOF - A method for making an encapsulated stent includes providing a first seamless unsintered ePTFE tube, providing a second seamless sintered ePTFE tube, positioning a self-expanding stent between the first and second ePTFE tubes to form an assembly, and joining the first ePTFE tube to the second ePTFE tube through openings in a wall of the stent by applying first pressure, and then heat, to the assembly.05-14-2009
20100094399VARIABLE SPEED SELF-EXPANDING STENT DELIVERY SYSTEM AND LUER LOCKING CONNECTOR - A stent delivery system that includes an inner member and an outer retractable sheath is operated by a handle that permits retraction of the sheath at more than one speed. The sheath may be retracted in small, incremental steps or in a single, more rapid stroke. Means are provided for releasably locking the inner member and outer sheath in a fixed position as well as to facilitate admission of liquid into the device.04-15-2010
20100094392Expandable Sheath for Introducing an Endovascular Delivery Device into a Body - Embodiments of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a tissue heart valve, into a patient. Such embodiments can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some embodiments can comprise a sheath with inner and outer tubular layers, and an intermediate tubular layer comprising a shape memory alloy. Other embodiments comprise one or more layers having one or more longitudinal notches or cuts to facilitate expansion of the sheath. Embodiments of the present expandable sheath can avoid the need for multiple insertions for the dilation of the vessel, thus offering advantages over prior art introducer sheaths.04-15-2010
20100094394RECONSTRAINABLE STENT DELIVERY SYSTEM - The stent of the present invention combines a helical strut band interconnected by coil elements. This structure provides a combination of attributes that are desirable in a stent, such as, for example, substantial flexibility, stability in supporting a vessel lumen, cell size and radial strength. The structure of the stent of the present invention provides a predetermined geometric relationship between the helical strut band and interconnected coil.04-15-2010
20100063570COATING ON A BALLOON COMPRISING A POLYMER AND A DRUG - A coating on a balloon of a medical device is provided. The coating comprises a drug and a polymer. Also provided are methods of forming and using the coating.03-11-2010
20100063571PRE-CRIMP BALLOON INFLATION - A method of crimping a stent onto a balloon of a stent delivery catheter is disclosed. The method includes pressurizing the balloon while the stent is being radially compressed onto the balloon with a crimping apparatus. Once the stent has reached its radially compressed configuration, the pressure within the balloon is released, while an inward crimping force exerted on the stent by the crimping apparatus is maintained. After a dwell time, the inward crimping force is discontinued, and the balloon and crimped stent are removed from the crimping apparatus. Resultant of the crimping process, balloon material extends radially outward through interstices of the stent to facilitate stent retention on the balloon while advancing the stent delivery catheter through a vessel lumen.03-11-2010
20130046373Actively Controllable Stent, Stent Graft, Heart Valve and Method of Controlling Same - Sealable and repositionable implant devices are provided with features that increase the ability of implants such as endovascular grafts and valves to be precisely deployed or re-deployed, with better in situ accommodation to the local anatomy of the targeted recipient anatomic site, and/or with the ability for post-deployment adjustment to accommodate anatomic changes that might compromise the efficacy of the implant. A surgical implant includes an implant body and a selectively adjustable assembly attached to the implant body, the assembly having adjustable elements and being operable to cause a configuration change in a portion of the implant body and, thereby, permit implantation of the implant body within an anatomic orifice to effect a seal therein under normal physiological conditions.02-21-2013
20100152829EMBOLIC FILTER DELIVERY SYSTEM AND METHOD - The disclosure pertains to a medical device deployment system comprising a restraint member which holds the embolic protection filter in a restrained, or partially collapsed, state for insertion into a lumen and transit to a desired deployment site. The restraint member comprises two or more portions which differ in their mechanical ability to resist the radial forces exerted by various portions of the medical device when it is in a restrained, or partially collapsed, state. The restraint member is maintained in a restraint configuration by an actuation member which engages portions of the restraint member lying on opposite sides of a generally axial gap until deployment of the medical device is desired. Withdrawal of the actuation member allows the restraint member to release the medical device which may then return to a deployed state. The invention also provides a method for assembling a medical device deployment system.06-17-2010
20090306759COVERING FOR AN ENDOPROSTHETIC DEVICE AND METHODS OF USING FOR ANEURYSM TREATMENT - The present invention relates to covered endoprosthetic devices. Covered endoprosthetic devices comprise an endoprosthesis and a sheath. The sheath comprises a central portion and outer portions, wherein the central portion preferentially restricts or causes a restriction of blood flow. Blood flow can be reduced by the central portion of the sheath by varying the permeability of the sheath or by having projections on the sheath that slow blood flow. Permeability may be provided by perforations or holes in the material of the sheath or by varying the polymer structure that makes up the sheath itself. The outer portions of the sheath do not substantially reduce blood flow. Methods of using sheath-covered endoprosthetic devices of the invention to treat aneurysms, especially aneurysms in proximity to small perforator vessels or arteries, are also encompassed.12-10-2009
20090306758Bifurcation Catheter Assembly With Dynamic Side Branch Lumen - A catheter assembly and related methods having a main balloon, a branch balloon arrangement and a stent. The catheter assembly includes a main catheter branch, a side catheter branch arrangement, and a stent. The main catheter branch includes at least a main balloon and a side balloon. The side catheter branch arrangement includes a branch guidewire housing and a sleeve member. At least a portion of the side catheter branch arrangement extends through a proximal open end of the stent and out through a side branch aperture of the stent. The branch guidewire housing defines a side branch lumen configured to advance over a branch vessel guidewire. The sleeve member is sized to receive the branch guidewire housing, wherein the branch guidewire housing is axially movable within the sleeve member. The sleeve member is typically fixed axially relative to the main catheter branch.12-10-2009
20090306757Side Branch Wiring Assist Sheath and Methods - A vessel bifurcation wire assist device and related methods of advancing guidewires into main and branch vessels of a vessel bifurcation. The wire assist device includes a first guidewire housing member defining a first guidewire lumen sized to advance over a first guidewire, and a second guidewire housing member defining a second guidewire lumen sized to advance over a second guidewire. The second guidewire housing member has a first directional arrangement and a second directional arrangement. The first directional arrangement provides a parallel arrangement of the second guidewire relative to the first guidewire housing member, and the second directional arrangement provides an angled arrangement of the second guidewire relative to the first guidewire housing member.12-10-2009
20090093872POLYMERIC, DEGRADABLE DRUG-ELUTING STENTS AND COATINGS - Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally polylactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to recoil and creep, can be plastically expanded on a balloon catheter, and can be deployed rapidly in vivo. Stent coatings derived from these materials provide biocompatible, uniform coatings that are ductile, and can be expanded without the coating cracking and/or delaminating and can be used as a coating matrix for drug incorporation.04-09-2009
20130073025DEVICES AND METHODS FOR ASSISTING VALVE FUNCTION, REPLACING VENOUS VALVES, AND PREDICTING VALVE TREATMENT SUCCESS - Devices and methods for assisting valve function, replacing venous valves, and predicting valve treatment successes. In at least one embodiment of an endograft valve device of the present disclosure, the device comprises an endograft body configured for expansion from a collapsed configuration to an expanded configuration within a luminal organ and comprising a first portion having a proximal end defining a proximal end aperture and a distal end defining a distal end aperture, the first portion tapering toward the distal end so that the distal end aperture has a relatively smaller cross-sectional area than the proximal end aperture when the valve device is expanded, and a valve portion positioned at or near the distal end of the first portion, the valve portion configured to receive fluid flowing through the distal end aperture of the first portion.03-21-2013
20130073024DEVICE AND METHOD FOR DELIVERING A VASCULAR DEVICE - A device and method for delivering a vascular device to a target site is provided that maintains a proximal portion of the vascular device within a tubular sleeve by positioning a stop of an inner member at a distal opening of the tubular sleeve to block the opening. Once the stop has been moved distally via movement of the inner member to clear the opening, a band of increased thickness on the inner member can urge the proximal portion of the vascular device out of the tubular sleeve to deploy the vascular device. The vascular device may be recaptured within a delivery sheath prior to the full deployment of the proximal portion of the vascular device from the tubular sleeve by re-positioning the stop at the distal opening to hold the vascular device within the tubular sleeve as the delivery device is retracted with respect to the delivery sheath.03-21-2013
20110015717CONSTRUCTIVE DISPOSITION INTRODUCED IN INDEFLATOR DEVICE APPLIED TO ANGIOPLASTY PROCEDURES IN THE BI-ARTERIAL TREATMENT AND THE KISSING-BALLOON TECHNIQUE - Embodiments of the present invention relate to constructive disposition introduced in an indeflator device applied in coronary angioplasty interventions for bi-arterial treatment and the kissing balloon technique. New introduced disposition in the indeflator and/or insuflator device is used in coronary angioplasty interventions especially to treat multiple bifurcation and bi-arterial lesions at the same time. Administering liquids or fluids at the indicated pressure used during surgical interventions, to inflate, control the pressure and also deflate balloon catheters, where this procedure is widely used in angioplasty interventions, enables the implementation of double endoprosthetic, also known as stent.01-20-2011
20130060317STENT DELIVERY SYSTEM HAVING STENT SECUREMENT APPARATUS - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include an elongate shaft including a first tubular member and a second tubular member. A balloon may be coupled to the shaft. A first member may be coupled to the first tubular member and positioned within the balloon. A second member may be coupled to the first tubular member and positioned within the balloon. A medical implant may be coupled to the shaft and positioned adjacent to the balloon.03-07-2013
20130060318METHOD AND DEVICES FOR FLOW OCCLUSION DURING DEVICE EXCHANGES - A method for facilitating treatment of catheter induced vascular injuries may first involve introducing a guide wire into a vascular sheath residing in a blood vessel, where the guide wire has a distal end and an inflatable balloon at least 15 cm proximal of the distal end. The method may further involve proximally retracting the vascular sheath while leaving the wire in place and observing indicia of the presence or absence of a vascular injury caused to the blood vessel by the vascular sheath or a procedural catheter previously advanced through the vascular sheath. If indicia of a vascular injury are observed, the method may involve positioning the inflatable balloon at or near the vascular injury and inflating the balloon to reduce blood flow past the vascular injury, while leaving the guide wire in place to provide subsequent access to the injury.03-07-2013
20130060316BALLOON CATHETERS AND METHODS FOR USE - Apparatus and methods are provided for flaring a stent deployed within a branch vessel including an ostium communicating with a main vessel, a first end of the stent extending at least partially from the branch. A catheter is provided that includes a first balloon carried on its distal end, and a second balloon that includes a distal section overlying at least a portion of the first balloon and a proximal section. The catheter distal end is introduced into the main vessel and positioned through the ostium and stent into the branch until the first balloon is disposed within the stent. The first balloon is expanded to anchor the stent, and the second balloon is expanded to flare the first end of the stent. Optionally, the first balloon is expanded further, e.g., to expand the stent within the branch body lumen and/or dilate the lesion.03-07-2013
20120191173Bifurcation Catheter Assembly and Methods - A catheter assembly includes a main catheter branch and a side catheter branch. The main catheter branch includes a main balloon, a side balloon and a side inflation member. The side inflation member intersects the side balloon at a location on the side balloon that is offset laterally from a central line passing from a distal most point on the side balloon to a proximal most point on the side balloon. The side balloon is configured to extend radially outward relative to the main balloon when the side balloon is inflated. The side catheter branch can be centrally aligned with the side balloon central line and be positioned laterally adjacent to the side inflation lumen.07-26-2012
20090299449Kit for inserting a cavity-treatment element and method for preparing an associated treatment element - The kit comprises an implantable treatment element (12-03-2009
20090299457ENDOLUMENAL DEVICE FOR DELIVERING AND DEPLOYING AN ENDOLUMENAL EXPANDABLE PROSTHESIS - An endolumenal device (12-03-2009
20090299456Delivery system with helical shaft - A delivery system is provided for releasing a medical device within a body cavity. The delivery system may be used in an intravascular procedure to implant a self-expandable stent. A helical structure on the shaft of the delivery system engages the inner surface of the stent. As a result, the stent may be released by rotating the shaft relative to the stent which pushes the stent forward from the distal end of the shaft.12-03-2009
20090299455Rotatable catheter assembly - Embodiments of the present disclosure include methods and systems for a catheter assembly including a catheter shaft, a balloon positioned on the catheter shaft, where the balloon has a first balloon waist, a first lead extending longitudinally through the catheter shaft, and a first sealing member adjacent the first balloon waist and coupled to the first lead, where the first lead can provide electrical current to reversibly transition the first sealing member from a nonactivated state to an activated state in response to a temperature change in the first sealing member, and where at least a portion of the balloon rotates relative the catheter shaft in the nonactivated state and the first sealing member engages the first balloon waist to form a fluid tight seal and to prevent rotation of the balloon relative the catheter shaft in the activated state.12-03-2009
20090299454Staggered Two Balloon Bifurcation Catheter Assembly and Methods - A catheter assembly and related methods directed to stent delivery systems that include a stent and a catheter assembly having first and second balloons. The stent includes a side branch aperture and expandable structure defining the side branch aperture. The expandable structure is configured to move into a radial outward orientation relative to a sidewall of the stent. The portions of the first and second balloons are positioned within the stent in a generally coaxial arrangement with the first balloon extending distally from the distal open end of the stent and the second balloon extending proximally from the proximal open end of the stent. The expandable structure of the stent is moved towards the radial outward orientation by advancing the second balloon at least partially distally through the side branch aperture. In some arrangements, the second balloon is at least partially inflated when advanced through the side branch aperture.12-03-2009
20090299452DEVICES AND METHODS FOR ABLUMINALLY COATING MEDICAL DEVICES - A stent crimping and coating apparatus is disclosed. The apparatus includes a plurality of crimping blades positioned in a radial array and collectively forming a central crimping lumen, wherein the plurality of crimping blades radially movable to alter the diameter of the central crimping lumen. Each of the crimping blades includes a first surface configured to at least in part define the central crimping lumen. One or more of the crimping blades includes a fluid channel extending therein and a plurality of openings in fluid communication with the fluid channel. The plurality of openings are located at the first surface of the one or more crimping blades and adapted to discharge a fluid into the central crimping lumen.12-03-2009
20090299451DEVICE FOR LOADING SELF-EXPANDING STENTS - A device upon which a self-expanding stent may be crimped is utilized to safely load the self-expanding stent directly into a transfer tube or a delivery tube. The device comprises a compliant member, an expandable member, an expansion member and a retrieval member.12-03-2009
20090270970IMPLANTABLE INTRALUMINAL DEVICE AND METHOD OF USING SAME IN TREATING ANEURYSMS - A method and apparatus for reducing blood flow to an aneurysm proximate to a bifurcation having a source blood vessel a first branch vessel and a second branch vessel, the method comprising: providing a first mesh-like tube of bio-compatible material, the first mesh-like tube exhibiting a porosity index pre-selected to skew blood flow about the bifurcation away from the aneurysm; inserting the first mesh-like tube into the source blood vessel and the first branch vessel; and securing the first mesh-like tube to at least one of the source blood vessel and the first branch vessel, whereby blood flowing from the source blood vessel flows without undue impedance to the first branch vessel and the second branch vessel while being skewed away from the aneurysm.10-29-2009
20090270969DELIVERY SYSTEM HAVING A RELEASE MECHANISM FOR RELEASING AN OBJECT CARRIED BY A CATHETER AS WELL AS A RELEASE MECHANISM OF A DELIVERY SYSTEM - A delivery system having a release mechanism (10-29-2009
20090270968Stent for Branched Vessel and Balloon Catheter Unit having the Same - A stent for branched vessel by which a stent for main vessel can be inserted in the main vessel easily without interference with the stent for branched vessel that was already installed is disclosed. The stent for branched vessel of the present invention for expanding a constricted branched vessel is characterized in that a plurality of wave-form modules make a net shape so that a connectionless slit is formed lengthwise at the one end portion of the stent.10-29-2009
20090270967STENT ATTACHMENT AND DEPLOYMENT MECHANISM - A stent attachment and deployment mechanism is utilized to prevent the distal end of an endoprosthesis comprising fixation barbs or other fixation mechanism from deploying prior to the remaining sections of the fixation device. With this stent attachment and deployment mechanism accurate deployment may be achieved.10-29-2009
20090270966Stent Graft System and Method of Use - A stent graft system and method of use includes a stent graft for fixation at an attachment site with graft material defining at least one opening having an opening perimeter; a support attached to the graft material; a guide rail attached around the opening perimeter; and a helical anchor having a plurality of coils with a point at one end. The plurality of coils are rotatable around the guide rail to cause the pointed end of the coils to penetrate the graft material and the adjacent tissue in contact with the stent graft to sew the stent graft to the attachment site.10-29-2009
20090270965Endovascular Prosthesis for Ascending Aorta - An endoluminal prosthesis for treating a diseased portion of the ascending aorta includes a tubular graft material having an outer surface and an inner surface and a support structure coupled to the graft material. An anchoring device is coupled to the proximal end of the support structure to engage the sinotubular junction or the sinuses adjacent the sinotubular junction. The anchoring device may be a stent ring with barbs on an outer surface to engage the sinotubular junction, a plurality of anchors extending into the sinuses including hooks to engage the sinuses, a plurality of bent stents with distally facing shoulders extending into the sinuses and engaging a distal edge of the sinuses, or a series of progressively larger diameter stent rings extending into the sinuses to engage the distal edge of the sinuses.10-29-2009
20110022151STENT - If smooth transportation of bile toward the duodenum is difficult due to cancerous cells growing in the bile duct or due to stricture of the bile duct, a cylindrical stent may be implanted into the stenosed site of the bile duct to enable smooth supply of bile. Conventional stents have no risk of slippage at an implanted position thereof, but suffer from invasively growing cancerous cells. Although a covered stent having a coating has been proposed to solve invasion of the growing cancerous cells, the covered stent may have a risk of slippage at an implanted position thereof and also, may cause pancreatitis and cholelithiasis. To solve the above described problems, disclosed herein is a stent to prevent backflow of food from the duodenum to the bile duct while assuring smooth transportation of bile without a risk of unwanted displacement caused by the transported bile. The stent includes a cylindrical outer stent, and a downwardly tapered inner stent covered with a polytetrafluoroethylene (PTFE) or silicone coating having biocompatibility. The inner and outer stents are coupled to each other to define a double structure.01-27-2011
20110022150NON-COMPLIANT MULTILAYERED BALLOON FOR A CATHETER - A balloon catheter having a multi-layered balloon which has a first layer and at least a second layer, and which has noncompliant limited radial expansion beyond the nominal diameter of the balloon. By selecting the polymeric materials forming the balloon layers, and arranging and radially expanding the multiple layers of the balloon in accordance with the invention, a balloon is provided having an improved low compliance, preferably in combination with high flexibility and softness.01-27-2011
20110022149METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS - Devices and methods for treatment of a patient's vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough.01-27-2011
20120116492MEDICAL DEVICE - A medical device includes yarns made of a shape memory material and polymer yarns, wherein the yarns made of said shape memory material include polymer sheathing.05-10-2012
20130166011SYSTEM AND METHOD FOR DELIVERING A STENT TO A SELECTED POSITION WITHIN A LUMEN - A method for determining and graphically marking a position within a lumen of the body of a patient indicative of occlusion includes providing a user interface, using a processor, configured to allow a user to select an occlusion percentage threshold, determining, using the processor, a percentage of occlusion in the lumen, comparing, using the processor, the determined percentage of occlusion with the selected occlusion percentage threshold and identifying a region of the lumen that is occluded more than the selected occlusion percentage threshold, and designating, using the processor, the identified region on an image of the lumen with at least one mark.06-27-2013
20130166012DELIVERY SYSTEM FOR STAGED STENT RELEASE - A prosthesis introducer system may include an introducer. A trigger wire release mechanism and a restraining member may be positioned near the distal end of the introducer. The system may include first and second trigger wires, each including a proximal portion releasably coupleable to a portion of a prosthesis and a distal portion coupled to the trigger wire release mechanism. The second trigger wire may be engaged by the restraining member. Each of the first and second trigger wires may include a taut portion. The second trigger wire may include a slack portion extending distally from the taut portion and positioned distal of the restraining member. Upon actuation of the trigger wire release mechanism, the first trigger wire may be releasable from the prosthesis and the second trigger wire may be releasable subsequent to the release of the first trigger wire.06-27-2013
20090012596Stent with Bioabsorbable Membrane - In at least one embodiment, the invention is directed to a stent having a tubular wall where at least a portion of the tubular wall comprises a bioabsorbable membrane. In the portion of the tubular wall containing the bioabsorbable membrane, the members (e.g. struts and connectors) of the stent are embedded in the bioabsorbable membrane. In at least one embodiment, the stent is also configured to elute a therapeutic agent.01-08-2009
20090012595Therapeutic Drug-Eluting Endoluminal Covering - The present invention is of methods of preventing restenosis and promoting vascular re-healing. Specifically, the present invention is of a method of exposing the luminal wall of a blood vessel to a substance by deploying a drug-eluting polymer film inside the lumen of a blood vessel during or following angioplasty.01-08-2009
20100004728GRAFT ENDOFRAME HAVING AXIALLY VARIABLE CHARACTERISTICS - A prosthesis comprises a tubular body that is expandable from a contracted configuration to a radially expanded configuration. The tubular body has a total length and comprises a first section, a second section and a central section disposed therebetween. The total length of the tubular body in the expanded configuration is at least 95% of the total length of the tubular body in the contracted configuration. The three sections have a plurality of tubular rings, each with a plurality of struts having a length and coupled together to form a series of peaks and valleys. A connector couples adjacent tubular rings together. The length of the central section struts is different than the length of the other struts and the central section is coupled with both the first and second sections.01-07-2010
20100087906Catheter Device - A catheter device having a shaft that extends from a proximal end to a distal end to carry on its distal end a self-expanding implant for intraluminal advance on a guidewire and delivery of the implant to an implant site by proximal withdrawal of CD a sheath that lies radially outside the implant in the catheter, the catheter including a first shaft element to pull the sheath proximally and a second shaft element to push the implant distally to prevent the implant moving proximally with the sheath when the sheath is pulled proximally, wherein the second shaft element comprises a pusher-guider tube having a wall thickness with a plurality of discrete slits, the slits extending through the wall thickness of the pusher-guider tube.04-08-2010
20120239129TWISTING BIFURCATION DELIVERY SYSTEM - A catheter system comprises a catheter having an elongate catheter shaft such that a portion of the catheter shaft proximal a stent retaining region defines at least one bend that is bent around the longitudinal axis of a vessel. The catheter also has a side branch guidewire housing, defining a side branch guidewire lumen, and a side branch guidewire that extends through the side branch guidewire lumen.09-20-2012
20080294233Proximal protection balloon catheter method and device - Multiple catheters are used to improve the positioning of devices for the treatment of stenosis in carotid arteries. A first catheter is introduced through the right common femoral artery and used to position a first balloon occluder within the external carotid artery. A second catheter is introduced through the left common femoral artery and used to position a balloon occluder catheter within the common carotid artery after removal of the first catheter. A guide wire is used to guide a self-expanding stent through the balloon occluder catheter adjacent a narrowing or stenosis within the carotid artery for treatment. The utilization of multiple catheters makes possible the positioning of devices used to treat stenosis easier and in locations that have been difficult to treat.11-27-2008
20080294230Apparatus and methods for deploying self-expanding stents - Apparatus and methods are provided for improved deployment of self-expanding stents. One advantage of the improved delivery system is that energy storage within a portion of an outer sheath and/or an inner tube may be reduced during the deployment of the stent. In a first embodiment, the outer sheath and the inner tube may be coupled together using a plurality of engaging threaded members, such that circumferential rotation of the inner tube with respect to the outer sheath retracts the outer sheath to deploy the stent. In an alternative embodiment, a fluid reservoir may be provided between the inner tube and the outer sheath. A proximal sealing ring may be disposed annularly between the inner tube and the outer sheath, such that when the fluid reservoir is filled, the proximal sealing ring is urged proximally to engage and retract the outer sheath. Using these techniques, energy build-up in the outer sheath and/or inner tube may be substantially reduced and improved accuracy in deploying the stent may be achieved.11-27-2008
20090259286Sheath With Radio-Opaque Markers For Identifying Split Propagation - A medical device delivery system includes a self-expanding medical device mounted on a balloon portion of a catheter. A sheath is provided around the medical device to hold the device in place with the device staying in a compressed state. The balloon portion is inflated to cause the sheath to rupture and release the self-expanding medical device. A number of radio-opaque markers in a pattern that will aid in determining whether or not the sheath has properly ruptured upon inflation of the balloon portion are provided on the sheath. The radio-opaque markers are positioned with respect to an expected sheath rupture propagation path along which the sheath is expected to rupture. The pattern of the markers changes as the sheath ruptures and this change is detected by an operator of the system.10-15-2009
20090157162RAPID-EXCHANGE RETRACTABLE SHEATH SELF-EXPANDING DELIVERY SYSTEM WITH INCOMPRESSIBLE INNER MEMBER AND FLEXIBLE DISTAL ASSEMBLY - A delivery system for delivery of a medical device, the delivery system having an inner member having a proximal section, a distal section and a longitudinal axis therebetween, and an outer member disposed about the inner member, wherein the distal section of the inner member includes at least two wires wound about the inner member.06-18-2009
20110307047SYSTEM AND METHODS FOR TREATING A BIFURCATION - A system for treating a bifurcation includes first and second delivery catheters, each having an expandable member and a stent. The stent on the second delivery catheter has a side hole. A portion of the first delivery catheter is disposed under a portion of the stent on second delivery catheter. The first delivery catheter is slidable relative to the second delivery catheter, and the first delivery catheter passes through the side hole.12-15-2011
20110160833IMPLANTABLE GRAFT ASSEMBLY - An implantable graft-assembly has a) a radially expandable substantially tubular frame (e.g., a stent); and b) a graft having an at least partially curved periphery, such as an oval or circular graft. Also provided are methods of treating aneurysms using such graft assemblies, methods of making the graft assemblies, use of sheets of materials for making the graft assemblies, and methods of mounting graft-assemblies having partial covers such as grafts on delivery devices such as delivery catheters or inside delivery sheaths.06-30-2011
20120065718CATHETER BALLOON AND METHOD FOR FORMING SAME - A catheter balloon and method involves extruded tubing with multiple layers of different durometer values, selected such that the blow up ratio (BUR) at the balloon's inner surface is increased. In one method a two stage blow mold process uses a small radius initial stage where radial growth is limited, followed by a second stage to a final dimension. A single stage blow mold process is also disclosed where the materials and processing are selected to approach the elongation to failure limit of the material. The single stage approach is preferably followed by a modified post-expansion heat set treatment to promote greater axial strength, leading to a preferred failure mode in the axial rather than radial direction.03-15-2012
20110282426ENDOVASCULAR DEVICES AND ASSOCIATED SYSTEMS AND METHODS - An endoluminal device having a reduced delivery profile for delivery through a lumen and a greater released profile for placement in the lumen. The reduced profile configuration allows the compact delivery of agents or other components of a delivery system to a target site.11-17-2011
20080294231Stent Delivery Catheter - Stent delivery catheters comprising a hypotube, which may be a micromachined member, disposed on an outer portion of an inner member that may be an extruded multi-lumen member. The hypotube may be secured to the inner member. The devices may be adapted for delivering a self expanding stent by providing a restraining structure or device over the stent during delivery. One or more actuating members are provided through a lumen in the inner member to actuate the restraining structure and release the stent. Methods of use of such catheters are also described.11-27-2008
20090270964Toroidal balloon system and method of use - A toroidal balloon system apparatus and method for use in a vessel includes a catheter defining an inflation lumen and having an inflation port in communication with the inflation lumen; and a toroidal balloon attached to the catheter. The toroidal balloon defines a balloon lumen in communication with the inflation port to inflate the balloon and a central lumen which allows fluid flow through the balloon and the vessel when the toroidal balloon is inflated.10-29-2009
20100268316DEVICE AND METHOD FOR ESTABLISHING AN ARTIFICIAL ARTERIO-VENOUS FISTULA - A shunt rivet for implantation between a first body space and a second body space in a patient, such as to treat chronic obstructive pulmonary disease.10-21-2010
20100268315Castellated Sleeve Stent-Graft Delivery System and Method - A method of deploying a stent graft includes radially constraining proximal apexes of a proximal anchor stent ring of the stent-graft in a space between merlons of a castellated sleeve of a tip and a spindle having spindle pins, the proximal apexes extending around the spindle pins. A graft material of the stent-graft is radially constrained in a primary sheath, a proximal end of the graft material being attached to distal apexes of the proximal anchor stent ring. The proximal anchor stent ring further includes struts extending between the proximal apexes and the distal apexes. The primary sheath is retracted to allow the proximal end of the graft material and the distal apexes of the proximal anchor stent ring to pivot out beyond the confines of the sleeve to a large angle as the proximal end radially expands. The struts then extend through embrasures of the castellated sleeve. The tip is advanced to deploy the proximal apexes.10-21-2010
20120290063Method of Increasing Stent Retention of Bioabsorbable Scaffolding with a Sheath - A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized.11-15-2012
20120290065Pre-Positioned Anastomosis Device and Related Methods of Use - Embodiments of a medical device and related methods of use are provided in the disclosure. The medical device includes an elongate member having a first end defining a first opening, a second end defining a second opening, and a tapered lumen extending between the first and second openings. The diameter of the first end may be smaller than that of the second end. The medical device also may include a securing mechanism protruding from one of the first or second ends to penetrate tissue.11-15-2012
20110282425Catheter Handle and Methods of Operating - A delivery system having an improved handle allowing operation of the delivery system with one hand while maintaining accuracy in delivery and deployment of a prosthesis in a body lumen. The delivery system includes a sheath and a handle. The handle includes a slide shaft having a threaded outer surface, and a hub assembly coupled to the sheath. The hub assembly includes an inner slider having a thread tooth pivot support, a thread tooth pivotably mounted to the thread tooth pivot support, a distal sleeve having a thread tooth press member pressing on the thread tooth, and a proximal sleeve. Motion of the distal sleeve relative to the inner slider pivots the thread tooth on the thread tooth pivot support to engage and disengage the hub assembly with the threaded outer surface. The distal sleeve is rotatably coupled to the proximal sleeve, and the proximal sleeve is prevented from rotating to provide a stable grip to allow operation of the catheter with one hand.11-17-2011
20120290064ELASTIC CAP FOR THE PROTECTION OF THE DISTAL END OF A CATHETER HAVING AN INNER AND AN OUTER HOSE - An elastic cap for covering the distal end of a catheter having inner and outer hoses, characterized in that the cap consists essentially of an elastic material, has a cavity in which the distal end of the inner and the outer hose of a catheter can be received, and the cap has a first opening via which the cavity is accessible from the outside, wherein prior to receiving the distal end of the catheter, the first opening has a diameter which is not larger than the outer diameter of the inner hose of the catheter and wherein the first opening is elastically expandable to a diameter which corresponds to the outer diameter of the outer hose.11-15-2012
20110301688Prosthetic Valve Delivery System - A prosthetic valve delivery system for percutaneously delivering and deploying a prosthetic valve within an existing valve is disclosed. The delivery system includes a stented prosthetic valve having a balloon-expandable stent portion with a prosthetic valve disposed therein and at least one self-expanding stent portion. The delivery system further includes a dual balloon catheter having a first balloon on which the stented prosthetic valve is disposed during delivery and a second balloon. Upon delivery within the existing valve, the self-expanding stent portion contacts the existing valve and the first balloon expands the balloon-expandable stent portion to a first diameter such that the stented prosthetic valve is in a first stage deployment configuration. The second balloon then expands the balloon-expandable stent portion to a second diameter, greater than the first diameter, such that the stented prosthetic valve is in a second stage deployment configuration being fully deployed within the existing valve.12-08-2011
20110301687DEVICE SUITABLE FOR IMPLANTATION AT A DESIRED POSITION IN A LUMEN OF WARM-BLOODED LIVING BEING, AS WELL AS A HOLDER SUITABLE FOR SUCH A DEVICE - A device suitable for implantation at a desired position in a lumen of a warm-blooded living being, which device comprises a tubular holder to be fixed in the lumen and at least one function element to be detachably fitted in the holder. The holder comprises a deformable tube which, in a first form thereof, is provided with slits, which holder can be made to expand in use from the first form to a second, expanded form once it has been implanted at the desired position in the lumen, with the slits forming mesh-shaped openings. The holder, in the expanded form thereof, further comprises a first portion having a reduced first diameter, in which the function element can be detachably fitted.12-08-2011
20110301686Implant Delivery Device - A system for delivering an implant within a patient is disclosed. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact each other, thereby resulting a notable change in resistance in the circuit supplying the heater coil with electricity. A core wire terminates prior to the distal end of the device, allowing for greater flexibility.12-08-2011
20110301685BI-DIRECTIONAL STENT DELIVERY SYSTEM - A bi-directional stent delivery system includes an inner elongate shaft, a radially expandable prosthesis disposed over the inner elongate shaft, an outer elongate shaft, and a shuttle sheath disposed over the radially expandable prosthesis. The distal portion of the inner shaft is releasably coupled to the distal portion of the shuttle sheath, and the distal portion of the outer shaft is releasably coupled the proximal portion of the shuttle sheath. Distal advancement of the inner shaft advances the shuttle sheath distally when the outer shaft is uncoupled from the shuttle sheath, thereby allowing the prosthesis to radially expand from a proximal end to a distal end. Proximal retraction of the outer shaft retracts the shuttle sheath proximally when the inner shaft is uncoupled from the shuttle sheath, thereby allowing the prosthesis to radially expand from a distal end to a proximal end thereof.12-08-2011
20110301684SYSTEM AND METHOD FOR PERFORMING ANGIOGRAPHY AND STENTING - An integrated catheter system for performing angiography on a human patient, the integrated catheter system consisting of an angiographic catheter onto which a thin-walled sheath is co-axially mounted. The angiographic catheter having an essentially straight and elongated proximal section in the form of a cylindrical shaft that is surrounded for less than one-half of its length by the thin-walled sheath that has an outer diameter that is less than 0.25 mm greater than the outside diameter of the angiography catheter. The strength to prevent buckling of the thin-walled sheath being provided by the shaft of the angiographic catheter. The integrated catheter system also being ideal for the placement of stents using small diameter stent delivery systems such as the stent-on-a-wire system.12-08-2011
20120010695BALLOON FOR USE IN PLACING STENTS IN BIFURCATED VESSELS - A balloon is used for placing stents in bifurcated vessels. The balloon is for expanding a first balloon-expandable stent, where the balloon includes a tubular balloon having a proximal end and a distal end, the balloon being capable of receiving within its tubular structure a guidewire for deployment of the first stent, the balloon further comprising a side opening closer to the distal end than the proximal end though which a second guidewire and a second stent may pass.01-12-2012
20120010694CATHETER - The invention relates to a catheter (01-12-2012
20120010693Mounting Stents On Stent Delivery Systems - A system for mounting a stent on a balloon catheter includes two positioning and alignment stations, which are used to prepare a stent and catheter for crimping using the same crimping head. The system is configured for automated assembly of the stent and catheter prior to crimping. A catheter and stent are placed on a computer-controlled carriage that delivers the stent and catheter to the crimper head. Before placing the stent and catheter into the crimper head, an automated alignment system locates the stent between balloon markers.01-12-2012
20120010692GRAFT DEPLOYMENT ASSIST TOOL - A delivery system for a medical device may include a sheath, a catheter slideably disposed within the sheath, and a hemostatic device comprising a housing disposed around and sealingly engaged with the sheath by a first seal. A sleeve is slideably coupled to the catheter and comprises a second seal sealingly engaging the catheter. The sleeve is movable between a first position, in which the sleeve is disposed outside of the housing and the first seal is sealingly engaged with an outer surface of the catheter, and a second position in which at least a portion of the sleeve is disposed within the housing between an inner surface of the housing and the outer surface of the catheter, wherein, in the second position, the first seal is sealingly engaged with an outer surface of the sleeve and the second seal is sealingly engaged with the outer surface of the catheter.01-12-2012
20120010691Particle Embedded Polymer Stent and Method of Manufacture - A particle embedded polymer stent and method of manufacture, which includes a stent delivery system having a catheter; a balloon operably attached to the catheter; and a polymer stent disposed on the balloon, the stent comprising struts interconnected to form a tubular body. Each of the struts includes in cross section a drug-free core region; and a drug region surrounding and immediately adjacent to the core region, the drug region including drug particles. The drug-free core region and the drug region are made of a single polymer, the single polymer having a drug-safe softening temperature.01-12-2012
20110288622EXPANDABLE ENDOPROSTHESES, SYSTEMS, AND METHODS FOR TREATING A BIFURCATED LUMEN - An endoprosthesis for treating a bifurcated lumen. The distal end of the endoprosthesis can include at least two wings and at least two troughs so the endoprosthesis can adequately scaffold the ostium of a bifurcated lumen by at least partially straddling the carina of the lumen bifurcation. The distal end of the endoprosthesis can also be configured to have increased expandability to help allow conformity to the anatomy of a bifurcated lumen.11-24-2011
20110288624VARIABLE DIAMETER TRIGGER WIRE - A self-expanding medical device delivery system includes a plurality of trigger wires. The trigger wires retain a self-expanding medical device by forming a bend about structural members located on the proximal portion of the medical device. The proximal portions of the trigger wires have a greater diameter than the distal portions of the trigger wires to provide increased bending strength. An operator releases the self-expanding medical device by withdrawing the trigger wires in the distal direction. In some embodiments, a small portion at the proximal end of the trigger wire has a smaller diameter than the rest of the proximal portion. In other embodiments, the proximal and distal portions of the trigger wire each have a greater diameter than the center of the trigger wire.11-24-2011
20110288623MEDICAL DEVICE - Novel devices and methods for implanting medical stents are provided. A novel apparatus, which may be in a first compressed position, may be inserted into the artery, such as by being positioned over a catheter. The apparatus may be expanded to a second position. In one embodiment, the apparatus is configured to expand away in two substantially opposing directions along a second axis away from the longitudinal axis. The second axis may be perpendicular to the longitudinal axis. The apparatus may include markers that are detectable to determine the orientation of the catheter or the apparatus and/or assist in the determination of the type or size of stent to utilize.11-24-2011
20110295353PATENT BODY LUMEN STENT - A stent implantable in a patent body lumen. The stent comprises a contiguous wire body having a plurality of sequential reversal coils that, when deployed in the patent lumen, are each configured to conform to the shape of the patent lumen and collectively have sufficient radial strength to prevent substantial narrowing of the patent lumen.12-01-2011
20110295355BLOUSED STENT-GRAFT AND FENESTRATION METHOD - A method includes deploying a bloused stent-graft into a main vessel such that a bloused section of the bloused stent-graft covers a branch vessel emanating from the main vessel. The bloused section includes loose graft cloth. A pressure differential between the main vessel and the branch vessel causes the bloused section to be forced into an ostium of the branch vessel creating a pocket aligned with the branch vessel. A distal tip of a puncture device is located in the pocket and thus aligned with the branch vessel. An outward force is applied to the puncture device to cause the distal tip of the puncture device to fenestrate the bloused section thus creating a collateral opening in the bloused section precisely aligned with the branch vessel.12-01-2011
20110295354STENT DELIVERY SYSTEM WITH PUSHER ASSEMBLY - A pusher assembly for a stent delivery device includes a distal end of an elongate member and a stent-engaging member having proximal and distal ends. The proximal end of the stent-engaging member is mechanically coupled to the distal end of the inner member by a connector, or the proximal end of the stent-engaging member is at least partially inside the distal end of the elongate inner member. The stent-engaging member includes a portion that radially outwardly extends towards the distal end of the stent-engaging member, or the stent-engaging member includes a portion that radially outwardly extends towards the distal end of the stent-engaging member. The stent-engaging member is configured to move a stent when distally advanced and configured to not move a stent when proximally retracted. A stent delivery device includes an elongate outer member, an elongate inner member coaxially positioned within the outer member, and the pusher assembly.12-01-2011
20090299450MULTI-LAYER BALLOON DESIGN FOR USE IN COMBINATION WITH CATHETER ASSEMBLIES, AND METHODS OF MAKING THE SAME - An expandable medical device having a static state and at least one expanded state, the expandable medical device in the static state including at least one first inner layer and at least one second outer layer, the outer layer having an inner surface and an outer surface, the outer layer having a closed lattice in the inner surface or the outer surface of the outer layer, wherein the lattice is open when the expandable medical device is in the at least one expanded state, and methods of making the same.12-03-2009
20090048655Two-step/dual-diameter balloon angioplasty catheter for bifurcation and side-branch vascular anatomy - The present invention tackles the challenging anatomic characteristics of the coronary artery disease in the bifurcation point and the origin of side-branch. The invention has a specifically designed angioplasty balloon catheter, particularly the balloon shape and profile, to be used in the diseased vessels at these difficult anatomic locations. In stent implanting into a coronary artery, a balloon catheter application is an inseparable requirement. A stent is a passive device that cannot be deployed in a diseased or stenosed artery without a pre-stent, with-stent and/or post-stent balloon dilatation. In majority (more than 95%) of available coronary stents, a stent is deployed by balloon expandable mode, meaning that the stent is delivered and expanded inside a vessel lumen by expanding a delivery balloon. This is done by crimping a stent over a folded balloon for delivery into a coronary artery. When expanded by balloon inflation, a stent is expanded and shaped passively by the inflated balloon shape and profile. The balloon catheter is designed to do angioplasty in the bifurcation and side-branch anatomy of coronary arteries, while minimizing the side effect. This specially designed balloon catheter is not only for balloon angioplasty dilatation of the bifurcation and side-branch anatomy, but is also for delivering and deploying specially designed bifurcation or side-branch stents into these difficult anatomic locations, as a stent delivery system.02-19-2009
20100087907Apparatus And Methods For Treating The Aorta - An endovascular stent and an aortic valve replacement can be used to treat the aorta. An endovascular stent suitable for treating the ascending aorta includes a circumferential wall with one or more portions configured to allow blood to flow therethrough, and one or more portions configured to be substantially impermeable. In one version, the blood-permeable portion is defined by bare metal with fenestrations defined therein, and the impermeable portion is formed from polymeric material. The permeable and impermeable portions of the stent are sized, shaped, and located so that, when positioned in the blood vessel to be treated, the impermeable portion is in operative proximity to an aneurysm, dissection, or other area to be treated, and the permeable, bare metal portion is in operative proximity to other blood vessels which need to receive blood from the blood vessel being treated. An aortic valve replacement includes multiple flanges that can be seated in the sinuses of valsalva. The stent or aortic valve replacement may be included in a suitable apparatus for treatment of the aorta. The apparatus for treating the aorta may include a delivery system adapted to be inserted through the apex of the left ventricle of the heart.04-08-2010
20100211156STENT DELIVERY DEVICE WITH EMBOLIC PROTECTION - A delivery device adapted to insert and deploy a stent within a body lumen. The delivery device includes a guide member adapted to retain a dilation assembly and a stent within a lumen thereof until the stent is to be deployed into the body lumen. The delivery device is configured to enable simultaneous insertion of the guide member, dilation assembly, stent, and optional guidewire within a body lumen. Following deploying the stent, the delivery device can be removed, while providing the capability of optionally maintaining the guide member or the guidewire to function or act as an exchange wire for additional surgical devices.08-19-2010
20100211154STENT, MICROCATHETER, BRAIDING APPARATUS FOR CONTINUOUS HOSELIKE BODY, AND PROCESS FOR MANUFACTURING STENT08-19-2010
20100211153Retractable Drug Delivery System and Method - A system for treating a vascular condition includes a catheter having an inner member and an outer member, the outer member concentrically arranged about the inner member and a retractable drug delivery device disposed at a distal end of the inner member. A coating disposed on at least a portion of an outer surface of the retractable drug delivery device includes at least one therapeutic agent.08-19-2010
20100036473HEATABLE DELIVERY DEVICE - A deployment device is provided for delivery and placement of a polymeric implant and/or stent with a polymeric coating in a body passageway. The deployment device can be used to provide temperature controlled inflation fluid and/or temperature adjusted inflation fluid to locally heat the polymeric implant and or stent with a polymeric coating to achieve a relatively softer polymeric phase, reducing the risk of fracture of the polymeric implant and or stent with a polymeric coating during expansion.02-11-2010
20100036471Method of Diagnosing and Treating Lower Urinary Tract Symptoms - A method of diagnosing and treating a patient having lower urinary tract symptoms caused by insufficient blood flow to the urinary bladder, the urethra, a nerve innervating the urinary bladder, or a nerve innervating the urethra due to atherosclerosis of a pelvic artery is disclosed. A method of diagnosing the patient's condition includes determining if a stenosis exists within a pelvic vessel. A method of treating the patient's condition may include placing a stent within the stenosed pelvic artery.02-11-2010
20100036472DELIVERY SYSTEM WITH VARIABLE DELIVERY RATE FOR DEPLOYING A MEDICAL DEVICE - A delivery system utilizes a handle assembly including an actuating mechanism capable of initially providing sufficient mechanical advantage to overcome static friction when initiating deployment of the medical device. The actuating mechanism includes components which help to increase the speed of deployment as the physician continues to manipulate the actuating mechanism.02-11-2010
20100030318Dual Capture Device for Stent Graft Delivery System and Method for Capturing a Stent Graft - A delivery system for delivering and deploying stents with proximal and distal apices includes first and second hollow lumens and a hollow apex release lumen, the first lumen having a distal end and an interior extending along a longitudinal axis, the second lumen having a distal end and being slidably disposed about the first lumen, and the apex release lumen having a distal end and being slidably disposed about the second lumen. A proximal apex capture device of the delivery system includes a first distal capture portion fixedly connected to the first lumen, the first distal capture portion having a first distal portion with a proximal end and a proximal stopper having a distal side disposed in a plane approximately perpendicular to the longitudinal axis, being disposed at a first proximal distance from the proximal end of the first distal portion, and defining first stopping surface portions. A first proximal capture portion is fixedly connected to the distal end of the apex release lumen and has fingers extending toward the first distal capture portion in a distal direction, the fingers defining a first interior cavity shaped to receive the first proximal stopper therein, the first distal capture portion and the first proximal capture portion being formed to hold the distal apices there between and, together, defining a first stent captured state in which the first proximal stopper is received in the first interior cavity and the first proximal capture portion approximately closes off the first interior cavity along the longitudinal axis.02-04-2010
20090099639METHOD FOR EXPANSION AND DEPLOYMENT OF POLYMERIC STRUCTURES INCLUDING STENTS - The invention is to methods of deploying polymeric biodegradable or non biodegradable stents by use of stepwise creases in the pressure placed upon the inner diameter of the stent to slowly increase the stent diameter. In one embodiment, the pressure on the interior stent diameter is slowly increased. The stent is allowed to acclimate to this diameter for a set period of time, and then the pressure is again increased. This series of steps continues until the stent reaches its final diameter and a final period of acclimatization is maintained prior to the removal of the deployment/delivery device.04-16-2009
20090099638MOTORIZED DEPLOYMENT SYSTEM - A motorized delivery system and method for deploying an endoluminal prosthesis is disclosed. The system comprises a delivery device and an electrical drive system. The prosthesis is disposed between an inner dilator and an elongate sheath. To deploy the prosthesis, the electrical drive system is actuated. One or more gear-pulley arrangements rotate to cause retraction of the sheath in relation to the inner dilator.04-16-2009
20110264190STENTS AND OTHER DEVICES HAVING EXTRACELLULAR MATRIX COATING - Provided herein are devices comprising a stent; and a coating on said stent comprising a polymer and an active agent, wherein the active agent comprises at least one of: extracellular matrix and an extracellular matrix component. Provided herein are methods of preparing a device comprising a stent and a coating on said stent; said method comprising: providing a stent; and forming a plurality of layers on said stent; wherein the coating comprises a polymer and at least one of said layers comprises one or more active agents; wherein at least a portion of the active agent comprises at least one of extracellular matrix and an extracellular matrix component.10-27-2011
20110264185BALLOON CATHETER AND BALLOON MOLD TO FACILITATE MARKER PLACEMENT AND METHOD FOR USING SAME - A catheter balloon is formed from a mold process with a circumferential demarcation is formed on the outer surface using a groove or ridge on the mold surface. The demarcation is located at the transition between the body portion of the catheter balloon and the neck or taper section. The presence of the demarcation serves to identify the transition between the two regions for placing and positioning a visual marker inside the balloon.10-27-2011
20090276031APPARATUS AND METHODS FOR DEPLOYMENT OF MULTIPLE CUSTOM-LENGTH PROSTHESES (II) - Apparatus for delivering stents to body lumens include one or more tubular prostheses carried at the distal end of a catheter shaft, a sheath slidably disposed over the prostheses, and a guidewire tube extending from within the sheath to the exterior of the sheath through an exit port in a sidewall thereof A guidewire extends slidably through the guidewire tube. The sheath can be moved relative to the catheter shaft and the guidewire tube to expose the prostheses for deployment. Methods of delivering stents are also provided.11-05-2009
20100106234Medical Devices With Extended Drug Diffusion Pathway - A system for treating a vascular condition includes a catheter, a stent disposed on the catheter, the stent having a stent framework including a stent wire and at least one stent foil attached to and wrapped around the stent wire, and a therapeutic agent coating disposed on an inner surface of the at least one stent foil. A method of manufacturing a stent includes securing a first edge of a stent foil to a stent wire, applying a therapeutic agent coating to an inner surface of the stent foil and wrapping the coated stent foil around the stent wire to encase the coating between the stent foil and the outer surface of the stent wire, securing a second edge of the wrapped stent foil to the stent wire, forming at least one exit port along the secured second edge and forming the wrapped stent wire into a stent framework.04-29-2010
20090182405APPARATUS AND METHOD FOR DEPLOYING AN IMPLANTABLE DEVICE WITHIN THE BODY - The present invention provides systems and methods for deploying implantable devices within the body. The delivery and deployment systems include at least one catheter or an assembly of catheters for selectively positioning the lumens of the implant to within target vessels. Various deployment and attachment mechanisms are provided for selectively deploying the implants.07-16-2009
20090319021BIFURCATED MEDICAL APPLIANCE DELIVERY APPARATUS AND METHOD - The present invention, in preferred embodiments, provides delivery and deployment apparatuses for bifurcated stents capable of comfortably cradling the corina of bifurcated target tissue between the arms of the bifurcated stent as each arm of the bifurcated stent is delivered to a respective side branch. In particular, a family of apparatuses is provided that may be indicated for vascular and non-vascular intervention.12-24-2009
20100114290Introducer for Deploying a Stent Graft in a Curved Lumen - An introducer (05-06-2010
20110172755SELF-EXPANDING MEDICAL DEVICE - The invention relates to a helical coil comprising multiple reversing sense helical coil units that are capable of drug elution, come in lengths appropriate for long, diffuse lesions, have the ability to have a step-wise tapering diameter, and provide all the benefits of a small closed cell stent design while maintaining high flexibility, high radial force and crush resistance due to an underlying helical coil.07-14-2011
20090149937SHEATHING FOR RESTORING THE FUNCTION OF VALVES OF VARICOSE VEINS AND USE OF THE SHEATHING IN SURGERY - A sheathing has a longitudinal direction and a transverse direction for restoring function of venous valves of varicose veins in the form of a planar, flexible piece of material, wherein the piece of material includes a nonwoven material.06-11-2009
20110196471Delivery of a Stent at an Elevated Temperature - Methods and systems of delivering a stent at an elevated temperature are disclosed herein.08-11-2011
20100268314Hollow Helical Stent System - A stent is formed from a hollow resilient tube shaped into a helical expanded configuration to form a substantially cylindrical prosthesis that is releasably attached to an actuation shaft for delivery to a treatment site. The stent is deliverable in a substantially linear configuration and deployed with internal fluid pressure, which is delivered through the actuation shaft, to return to the helical expanded configuration. Specifically, injection of a deployment fluid into the resilient tube that forms the stent causes the stent to revert or spring back from the substantially linear delivery configuration to the original helical configuration, and in some applications to dilate a vessel. A ring is attached to a distal end of the stent to couple the stent system to a guidewire for delivery through the vasculature.10-21-2010
20090149938Lubrication Apparatus for a Delivery and Deployment Device - A delivery and deployment device comprises a sheath having a proximal end, a distal end, and a lumen disposed therebetween; a dilator having a distal end slidingly disposed within the sheath lumen; a valve assembly comprising a valve housing affixed to the sheath and a valve disposed within the housing between the sheath and the dilator; and a valve lubrication mechanism disposed between the valve and the dilator.06-11-2009
20110264189IMPLANTABLE MEDICAL DEVICE HAVING A MEANS FOR POSITIONING IT AT THE PRECISE SITE OF A BRANCHING OF A BLOOD VESSEL SUCH AS A CORONARY ARTERY - The invention relates to an implantable medical device.10-27-2011
20110264187Drug Eluting Folded Stent and Stent Delivery System - The drug eluting folded stent and a stent delivery system, which includes a stent having a plurality of struts interconnected to form a tubular body. At least one of the struts includes a U-shaped strut having in cross-section a first leg, a second leg, and a closed end connecting the first leg and the second leg, wherein the first leg, the second leg, and the closed end define a recess having a drug release opening opposite the closed end; and a drug coating disposed on the first leg, the second leg, and the closed end within the recess. The drug release opening is sized to release a drug from the drug coating at a predetermined drug elution rate.10-27-2011
20110264186Biodegradable Stent Having Non-Biodegradable End Portions and Mechanisms for Increased Stent Hoop Strength - A hybrid stent prosthesis including a biodegradable tubular body, a first non-biodegradable self-expanding ring coupled to a proximal end of the biodegradable body, and a second non-biodegradable self-expanding ring coupled to a distal end of the biodegradable body. The hybrid stent includes a mechanism for longitudinally compressing the tubular body to increase the radial or hoop strength thereof. The longitudinally compressing mechanism may be protruding elements coupled to and extending radially outward from the hybrid stent or elastomeric compression bands or tethers extending between the non-biodegradable rings. The compression bands may be pre-connected to both non-biodegradable rings prior to stent delivery, or may be connected to one non-biodegradable ring prior to insertion and connected to the other non-biodegradable ring in situ.10-27-2011
20080312729METHODS OF TISSUE RECONFIGURATION - An endoluminal treatment device and method includes introducing an endoluminal device into a lumen of a patient and engaging a wall of the lumen with an implant device. The implant device can be a drug delivery device or medical device.12-18-2008
20090143851METHOD AND DEVICE FOR VASCULAR THERAPY - Medical devices, as well as methods of treatment and manufacturing such devices, are provided for applying vascular therapy locally within the body vessel. The medical devices include an expandable tubular frame and a sleeve. The medical devices can be used for local delivery of a therapeutic agent within a body vessel or a tamponade for a lacerated body vessel, while simultaneously allowing perfusion of fluid or blood flow distal of the implanted medical device. The tubular frame of the medical device can have a middle region with a plurality of members. The members can expand radially outward away from a longitudinal axis of the tubular frame, which can urge the sleeve to contact the wall of the body vessel. In the expanded configuration, a portion of the device allows fluid flow to continue while the sleeve is against the body vessel wall.06-04-2009
20100262219DEVICE FOR ANGIOPLASTY WITH AN EMBOLIZATION PROTECTION COMPONENT AND METHOD THEREFOR - A device and method for balloon and stent angioplasty for treating atherosclerosis with a distal embolization protection component. The device includes an endoluminal dilatation balloon formed on a shaft having at least one lumen, a flexible filter mounted on the shaft, distal to the balloon and a filter deployment memory ring circling the proximal opening of the flexible filter for the purpose of controlling deployment and collapsing of the filter. When the endoluminal dilatation balloon is inflated for the purpose of dilating plaque that is blocking a blood vessel, the flexible filter deployed prior to balloon inflation, traps atherosclerotic debris and thrombi emboli that are released from the plaque, thus allowing blood flow to continue without interference during the angioplasty procedure. At the end of the procedure the flexible filter, containing the debris, is pulled and collapsed into a small profile and is pulled out of the artery as an integrated unit with the balloon. The device may or may not have a stent pre-crimped over the dilatation balloon.10-14-2010
20120035703Truncated Conical Heart Valve Stent with Anchoring Threads and Methods of Use - A heart valve stent and methods of use thereof, such stent having a heart valve implant and several proximally disposed tissue anchors, also comprising a plurality of anchoring threads, each with a proximate end fastened to the stent or valve and a distal end attached to tissue within a heart chamber to provide tension between the heart chamber tissue and the stent.02-09-2012
20100125324Catheter Inner Member - A catheter inner member includes an inner member body, including a first side and a second side, the second side opposing the first side. The inner member body includes an inner surface defining an inner member inner lumen and an outer surface defining a surrounding environment. The inner member further includes at least a first flush port and a second flush port in the inner member body. The first flush port and second flush port provide fluid communication between the inner lumen and a surrounding environment. The first flush port disposed on the first side and the second flush port disposed on the second side, wherein the first flush port is axially displaced from the second flush port.05-20-2010
20090306756Hybrid Biodegradable/Non-Biodegradable Stent, Delivery System and Method of Treating a Vascular Condition - An intraluminal stent, an intraluminal stent delivery system, and a method of treating a vascular condition. The stent includes a framework composed of a biodegradable material. At least one strut is composed of a non-biodegradable material. The framework is operably attached to the at least one strut. The delivery system includes a catheter and a stent disposed on a portion of the catheter. The stent includes a framework composed of a biodegradable material. The stent further includes at least one strut composed of a non-biodegradable material. The framework is operably attached to the at least one strut. The method includes positioning an intraluminal stent via a catheter within a vessel. The stent includes at least one strut that is composed of a non-biodegradable material and is operably attached to a framework. The framework expands during deployment of the intraluminal stent. The framework is allowed to biodegrade within the vessel.12-10-2009
20120109279APPARATUS AND METHOD OF PLACEMENT OF A GRAFT OR GRAFT SYSTEM - A fenestrated graft deployment system, with a delivery catheter having a catheter body, An endoluminal prosthesis having a main graft body, the main graft body having a lumen therethrough and a first opening laterally through a wall of the main graft body. A first guidewire prepositioned within the delivery catheter extending through at least a portion of the catheter body into a main lumen of the endoluminal prosthesis and through the first opening in the wall of the prosthesis when the delivery catheter is in a predeployed configuration. A first fenestration alignment device is configured to extend through at least a portion of the delivery catheter and is configured to be axially moveable relative to the first guidewire. The first fenestration alignment device has an end portion having an outside perimeter configured such that when an end portion of the fenestration alignment device moves toward the first opening of said main graft body the outside perimeter of the first opening is smaller than the outside perimeter of the first fenestration alignment device and prevents it from passing through the first opening and causes the main graft body adjacent to the first opening to move with the end of the first fenestration alignment device to act as alignment tool to allow an operator to align the first opening in the side of the endoluminal prosthesis with an ostium of a target branch vessel into which said first opening is to extend and act as a guide and seal for a subsequently delivered branch graft endoluminal prosthesis.05-03-2012
20120109278NEUROTOXIC AGENTS AND MEDICAL DEVICES THEREFOR - Devices and methods to treat atrial fibrillation via inhibition of nerves which innervate the pulmonary vein are provided.05-03-2012
20120109277APPARATUS AND METHOD FOR PENETRATING AND ENLARGING ADJACENT TISSUE LAYERS - A catheter for penetrating and dilating a passage from a first body lumen to a second body lumen comprises a catheter body, a tapered dilating tip at a distal end of the catheter body, a reciprocatable needle carried in a central passage of the catheter body, a deployable anchor carried near a distal end of the needle, and an advanceable blade carried in a slot at the distal end of the catheter body and advanceable in a track formed axially along the needle. The catheter can be used to penetrate adjacent luminal walls by first advancing the needle, and advancing the dilator over the needle followed by deploying the anchor, applying proximal tension to hold the adjacent tissue layers together, and then advancing the dilator with the exposed blade to fully dilate the passage.05-03-2012
20120109276CATHETER, SYSTEM FOR APPLYING AN INTRALUMINAL ENDOPROSTHESIS AND METHOD FOR PRODUCING SAME - The present invention relates to a catheter comprising a balloon (05-03-2012
20120109275STENT WITH RADIALLY ASYMMETRIC FORCE DISTRIBUTION - An expandable stent comprising a tubular main body with a lumen along a longitudinal axis, characterized in that the main body has at least one radially asymmetrically expandable portion, wherein the radially asymmetrically expandable portion has an expandability which is increased in comparison to the average expandability in the rest of the main body of the stent.05-03-2012
20100121427ENDOPROSTHESIS DELIVERY SYSTEM - Endoprothesis delivery systems and methods for making an using the same. An example medical endoprosthesis delivery system may include an inner member. An outer member may at least partially surround the inner member. The inner member and the outer member may be configured so that an implantable medical endoprosthesis can be disposed therebetween. A coupling device may be coupled to a portion of the outer member so that, when there is substantially no slack in the coupling device, as the coupling device moves in a proximal direction the portion of the outer member moves in the proximal direction. An adjustable stop may be coupled to the coupling device so that, when there is slack in the coupling device, as the adjustable stop is moved in the proximal direction, the amount of slack in the coupling device can be reduced.05-13-2010
20100121424Stent compression tool - The stent compression tool is used to install a diametrically compressible stent in a delivery catheter. The tool has a tubular configuration with a larger funnel mouth at one end and a narrower opening at the opposite end. The basic steps in the process comprise extending the stent carrying member from its catheter sheath, passing the carrying member through the tool from the narrower end thereof, placing the stent over the carrying member and compressing the stent by pushing it through the funnel mouth of the tool and the narrower lumen of the tool, inserting the stent grip member of the delivery catheter into the stent and further into the tool, pushing the end of the sheath into the end of the tool, using the carrying member and its stent grip to draw the compressed stent from the tool into the sheath, and removing the tool from the carrying member.05-13-2010
20100121425STENT DELIVERY SYSTEM - A stent delivery system comprises a delivery catheter with a balloon and a stent. The stent delivery system is characterized in that when a force to move the stent in the axial direction of the catheter is applied to the stent, a holding mechanism is formed in a part of the balloon to prevent the stent from falling down. According to this invention, the stent delivery system that is capable of preventing the stent from falling down and has excellent track ability can be provided without requiring complicated manufacturing processes.05-13-2010
20090312832SLIP LAYER DELIVERY CATHETER - A slip layer delivery catheter includes a slip layer delivery catheter includes an outer tube configured with a plurality of strips extending therefrom and terminating in a plurality of distal strip end ends, the plurality of strips defined by empty slotted regions disposed between adjacent strips. An inner tube is coaxially disposed in the outer tube. The inner tube includes a proximal inner tube portion and a distal inner tube portion connected to the distal strip ends. An endoluminal medical device is collapsibly disposed over the inner tube. The plurality of strips is folded back into the outer tube, concentrically orienting the device between the outer tube and the inner tube such that at least a portion of the strips are disposed between the outer tube and the ablumenal device side.12-17-2009
20110270376INTRODUCER FOR A SIDE BRANCH DEVICE - An introduction arrangement for a fenestrated or branched stent graft (11-03-2011
20110270371Stent graft Delivery System - A stent graft delivery system including a tip assembly, a middle member tube, a sheath assembly, and a unitary front grip. The sheath tube is axially slideable within the distal front grip lumen, the threaded assembly distal end is disposed in the proximal front grip lumen and fixed to the unitary front grip, and the first threaded tube portion and the second threaded tube portion are radially compressed together by the unitary front grip. The sheath handle engages the exterior thread of the threaded assembly in a first configuration to move the sheath tube axially relative to the middle member tube and tip tube through rotation of the sheath handle and disengages the exterior thread of the threaded assembly in a second configuration to move the sheath tube axially relative to the middle member tube and tip tube through axial motion of the sheath handle.11-03-2011
20100100167DELIVERY SYSTEM FOR DEPLOYMENT OF MEDICAL DEVICES - A sheathed catheter system is described where the sheath comprises a distal portion and a proximal portion that are moveable axially relative to each other, and relative to a tube carrying a medical device thereon. The distal and proximal sheath portions can be brought together in order to enclose therewithin the medical device. The distal sheath has a proximal section that is configured to bias radially inwardly to minimize an otherwise exposed annular surface catching on protruding surfaces that may exist on the catheter or other medical tool in use at the time, or to minimize scraping the inner native lumen of the patient upon retrieval.04-22-2010
20120253447BALLOON CATHETER - A balloon catheter includes: an inner tube adapted to receive a guide wire; an outer tube disposed on the outer surface side of the inner tube and cooperating with the inner tube to define an inflation lumen therebetween; and a balloon joined at the distal end thereof to the inner tube and at the proximal end thereof to the outer tube and configured to be expanded by inflation fluid from the inflation lumen. A non-circular region, having a non-circular sectional shape taken in a direction orthogonal to an extending direction of the inner tube, is formed on at least one of an outer surface of the inner tube and an inner surface of the outer tube. The non-circular region at least includes a joint section between the balloon and the outer tube and extends proximally of the joint section.10-04-2012
20100324646Biodegrdable Medical Device With Hydroxyapatite Filaments and Biodegradable Polymer Fibers - A system for treating a vascular condition includes a stent including hydroxyapatite fibers interwoven to define a stent lumen. Another aspect of the invention is a method of manufacturing a stent by forming hydroxyapatite fibers and biodegradable polymeric fibers, and interweaving the fibers to form a stent wall. The hydroxyapatite fibers can be formed by a sol-gel process, followed by spinning of the gel to form the hydroxyapatite fibers.12-23-2010
20090177262APPARATUS AND METHOD FOR TREATING CARDIOVASCULAR DISEASES - A method is provided for treating a cardiovascular disease, such as pulmonary arterial hypertension, an arrhythmia, or heart failure. One step of the method includes providing an apparatus. The apparatus includes an expandable support member having oppositely disposed proximal and distal end portions and a main body portion extending between the end portions. The proximal end portion includes a plurality of wing members extending from the main body portion. At least a portion of the expandable support member is treated with at least one therapeutic agent for eluting into a blood vessel. The expandable support member is inserted into the pulmonary vasculature and then advanced to a bifurcation in the pulmonary vasculature. The bifurcation includes the intersection of a first pulmonary vessel, a second pulmonary vessel, and a third pulmonary vessel. The expandable support member is secured at the bifurcation to treat pulmonary arterial hypertension, for example.07-09-2009
20100125322STENT DELIVERY CATHETER SYSTEM WITH HIGH TENSILE STENGTH - A stent delivery catheter system having a reinforcing tether member secured to the catheter such that the catheter is provided with an improved combination of an enhanced tensile strength together with other catheter performance characteristics such as low profile and high flexibility.05-20-2010
20100125327EXCHANGEABLE DELIVERY SYSTEM WITH DISTAL PROTECTION - Medical device delivery systems that include a distal protection feature are provided. A distal tip member that includes a distal protection device and a mounting region for a self-expandable, intraluminal medical device is slidably disposed within a passageway defined by a tubular member.05-20-2010
20100125325Stent With Cathodic Protection and Stent Delivery System - The stent with cathodic protection and stent delivery system includes a stent delivery system including a catheter; a balloon operably attached to the catheter; and a stent disposed on the balloon. The stent includes a stent body having a first stent layer of an anodic stent material disposed about a second stent layer of a cathodic stent material; and a battery having a first battery layer of an anodic battery material and a second battery layer of a cathodic battery material. The first stent layer is electrically coupled to the first battery layer and the second stent layer is electrically coupled to the second battery layer.05-20-2010
20100125323Coil Stent Delivery System and Method of Use - The coil stent delivery system and method of use includes a stent delivery system including a coil stent; a housing, the housing having a receiver defining a receiver chamber and a sheath defining a sheath lumen, the receiver chamber being in communication with the sheath lumen; and a screw assembly, the screw assembly having a shaft, a helical screw disposed about a distal portion of the shaft, and a drive operably coupled to the shaft. The shaft is disposed in the receiver chamber and the sheath lumen, the helical screw is disposed in the sheath, and the coil stent is disposed about the shaft in the receiver chamber and engages the helical screw. Rotation of the drive moves the coil stent through the sheath lumen.05-20-2010
20080319523ANEURYSM FILLER DEVICE - Embodiments of the invention include an aneurysm filler devide comprising: a main body comprising a pusher portion, a filler portion and a bridge portion, wherein the bridge portion contacts both the pusher portion and the filler portion.12-25-2008
20100087908APPARATUS AND METHODS FOR STENT DELIVERY WITH EMBOLIC PROTECTION - The present invention relates to a catheter system of the type comprising: 04-08-2010
20090088831STENT AND STENT DELIVERY DEVICE - An stent includes an outer stent base layer formed from a metallic material, an inner stent base layer formed from a metallic material and positioned inside the outer stent base layer, and a resinous adhesive layer containing a biodegradable polymer which is placed between the outer stent base layer and the inner stent base layer, and bonds together the outer stent base layer and the inner stent base layer. The resinous adhesive layer contains a biodegradable polymer containing a physiologically active substance in such a manner as to permit it to release itself.04-02-2009
20090088829Method and Apparatus for Stent Retention on a Balloon Catheter - A balloon is inflated from a collapsed configuration, then deflated. A polymeric stent is then disposed over the deflated balloon and the stent crimped to the balloon.04-02-2009
20080208309Apparatus and method for implantation of a bifurcated endovascular prosthesis - A bifurcated stent graft for animal or human implantation and method of delivery thereof. The device stent graft employs a first component having an axial passage communicating with the axial cavities of a second leg and longer first leg. A separate leg extension is engageable to the second leg. A first catheter engages the first component for translation to the implantation site and a second catheter engaged with the first is provided with a prepositioned guide wire inside the second leg which may be employed to easily position a guide wire for engagement of the second leg with the leg extension.08-28-2008
20080208308High Temperature Oxidation-Reduction Process to Form Porous Structures on a Medical Implant - A system for treating abnormalities of the cardiovascular system includes a stent having a porous therapeutic agent carrying zone comprising oxidation and reduction products of one or more metals in the stent framework. Another embodiment of the invention includes a method of manufacturing a therapeutic agent carrying stent comprising exposing a metallic stent framework to oxidizing and reducting conditions, and forming a therapeutic agent carrying zone on the surface of the stent framework that includes oxidation and reduction products of one or more metals in the stent framework.08-28-2008
20090276030EVERTING STENT AND STENT DELIVERY SYSTEM - Devices and methods for delivering stents to target vessel regions, including stent delivery through microcatheters to narrow cerebral arteries. One stent delivery device includes a stent having the distal region everted over the distal end of a delivery tube, having the everted stent distal end captured by a distal element of a elongate release member disposed through the delivery tube. The delivery tube can have a distal taper to a small profile distal end. The everted stent distal region can be captured between the release member distal element and the surrounding delivery tube distal region walls. The captured and everted stent can be distally advanced to a target site, followed by manipulating the release member to free the captured stent. Some devices utilize distal advancement of the release member while other devices use proximal retraction of the release member to free the captured stent distal end. Once released, the stent is free to self-expand or be expanded against the surrounding blockage and/or vessel walls. In some methods, a guide catheter or microcatheter is also included and disposed about the everted and captured stent to advance the stent, delivery tube, and release member to a location near the site to be stented. The devices and methods provide stent delivery not requiring an enclosing delivery sheath about the stent. The everted stent can thus have a very small distal profile enabling small diameter vessels to be crossed and treated.11-05-2009
20090276028Cartridge Delivery System for Delivery of Medical Devices - A delivery cartridge, delivery system and a method for delivering a medical device are provided. The delivery cartridge includes a housing having a proximal end, a distal end and a cavity defined therein. The delivery cartridge further includes a proximal end covering member connected to the proximal end, a distal end covering member connected to the distal end, and a medical device positioned within the cavity. The housing is adapted to fit within a lumen of a delivery system.11-05-2009
20090276027Stent Graft Delivery System and Method of Use - A stent graft delivery system and method of use including a delivery system for a stent graft including a nosecone assembly having a nosecone and a nosecone shaft; a spindle assembly defining a spindle assembly lumen through which the nosecone shaft can slide, the spindle assembly having a spindle fitting and a spindle shaft; and a stent capture assembly defining a stent capture assembly lumen through which the spindle shaft can slide, the stent capture assembly having a stent capture fitting and a stent capture shaft. The spindle fitting is slidably mateable with the stent capture fitting to retain an end of the stent graft at a delivery diameter. A stent graft delivery system with an end stent capture configuration providing both a primary and a secondary deployment procedure facilitated by the threaded connection between a bare stent crown spindle fitting and a system nosecone.11-05-2009
20090281611SLIDING RESTRAINT STENT DELIVERY SYSTEMS - Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures. For such purposes, a self-expanding stent may be deployed in connection with an angioplasty procedure with a sliding restraint based delivery system adapted for simplified use. In the system, the sliding restraint is sized, in coordination with a fixed sleeve accepting a core wire to actuate the restraint to effect an anchoring function with the sleeve so that the stent is not inadvertently advanced during deployment.11-12-2009
20090281610DELIVERY SYSTEM WITH LOW LONGITUDINAL COMPRESSIBILITY - An improved delivery system for an implantable medical device includes a retention sheath having a proximal end, a distal end, and an inner lumen extending from the proximal end to the distal end. The implantable medical device is disposed within the inner lumen of the retention sheath, which restrains the implantable medical device. A plurality of substantially incompressible rings are disposed within the inner lumen of the retention sheath in a stacked co-axial configuration that extends from the proximal end of the retention sheath in a pre-deployment position to a proximal end of the implantable medical device. Each ring in the plurality of separate rings abuts at least a portion of an adjacent ring. The plurality of separate rings is configured to prevent the implantable medical device from moving toward a proximal end of the retention sheath when the retention sheath is moved from the pre-deployment position to a deployment position.11-12-2009
20090287289BIFURCATION STENT CRIMPING SYSTEMS AND METHODS - A stent crimping system and method for use in preparing a bifurcation catheter assembly for use in a patient. The catheter assembly includes main and side catheter branches and a stent. The stent includes a side branch aperture through which the side catheter branch extends. The stent is crimped onto the main and side catheter branches with a crimping mechanism in two crimping steps. In the first crimping step, only a distal end portion of the stent is crimped while the side catheter branch remains extending through the side branch opening of the stent and remains positioned outside of the crimping mechanism. In a second crimping step, the entire stent is crimped with the crimping mechanism.11-19-2009
20090287290Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A delivery system for delivering a stented prosthetic heart valve to a lumen of a patient, the delivery system including a tubular body having a proximal end, a distal end, and a base portion with a plurality of extending elements, wherein each of the extending elements is engageable with a portion of a stent of a prosthetic heart valve. The delivery system further includes a sleeve having an inner area. The sheath is longitudinally moveable relative to the base portion from a first position where the inner area of the sleeve at least partially covers the extending elements of the base portion to a second position where the extending elements are not positioned within the inner area of the sleeve.11-19-2009
20110172754DELIVERY DEVICES AND METHODS FOR HEART VALVE REPAIR - Devices, systems and methods facilitate positioning of a cardiac valve annulus treatment device, thus enhancing treatment of the annulus. Methods generally involve advancing an anchor delivery device through vasculature of the patient to a location in the heart for treating the valve annulus, contacting the anchor delivery device with a length of the valve annulus, delivering a plurality of coupled anchors from the anchor delivery device to secure the anchors to the annulus, and drawing the anchors together to circumferentially tighten the valve annulus. Devices generally include an elongate catheter having at least one tensioning member and at least one tensioning actuator for deforming a distal portion of the catheter to help it conform to a valve annulus. The catheter device may be used to navigate a subannular space below a mitral valve to facilitate positioning of an anchor delivery device.07-14-2011
20090299458BALLOON CATHETER FOR MULTIPLE ADJUSTABLE STENT DEPLOYMENT - A catheter configured to carry one or more stents and having an inflatable balloon for expanding a stent surrounding the balloon. The catheter is characterized in having a positioner for moving the one or more stents relative to the balloon torn a first position in which the stent does not surround the balloon to a second position in which the stent surrounds the balloon. Also disclosed is a method for deploying a stent at a desired location in the vascular system.12-03-2009
20120296406GRAFT WITHIN A GRAFT ENDOLUMINAL GRAFT - A segmented endograft includes at least one positioning segment and at least one main body segment which are separately deployable. The at least one positioning segment and at least one main body segment may be connected one to another. In an embodiment, the at least one positioning segment and at least one main body segment are connected along a portion of a circumference thereof, but unconnected along a remainder of the circumference thereof. The at least one positioning segment overlaps a portion of the at least one main body segment. Deployment systems including the segmented endograft and methods for deploying a segmented endograft are described.11-22-2012
20100137967DEVICE FOR CONTROLLING A CATHETER - A device for deploying a stent, is connected to a catheter, the catheter being equipped with support structure for supporting the stent and with a deployment mechanism for deploying this stent. The device includes a portion connected to the stent-supporting structure and a portion connected to the stent-deploying mechanism. According to embodiments of the invention, the portion connected to the stent-supporting structure is in the form of a handle which may be grasped by a hand of the user, including at least one boss allowing it to be supported on a relatively stable surface, such as the operating table, the height of this boss being such that this support may be achieved in spite of the presence of the fingers of the user around the handle.06-03-2010
20080275536PREVENTION OF DISPLACEMENT OF PROSTHETIC DEVICES WITHIN ANEURYSMS - Devices and methods are provided for reducing the lateral displacement of an endovascular device, e.g. a stent graft, within an aneurysm sac. A stabilization system comprising one or more stabilizing elements is inserted within the aneurysm space between an implanted device and the vessel wall. Filling this space prevents changes in curvature of the implanted endovascular device, and prevents longitudinal displacement, thereby providing for improved long-term stability and durability of endovascular repair.11-06-2008
20110270372Stent Graft Delivery System and Method of Use - A stent graft delivery system including a tip assembly, a middle member tube, a sheath assembly, a threaded assembly, and a unitary endoseal. The tip tube is disposed in and longitudinally slideable within the proximal portion of the endoseal lumen, the middle member proximal end of the middle member tube is disposed in the distal portion of the endoseal lumen and fixed to the longitudinal cylindrical endoseal body, the first cylindrical portion of the transverse cylindrical endoseal body is disposed in the first sidewall port of the threaded assembly, the second cylindrical portion of the transverse cylindrical endoseal body is disposed in the second sidewall port of the threaded assembly, and the longitudinal endoseal cylindrical body is disposed in the threaded assembly lumen.11-03-2011
20110208284PROTECTIVE SLEEVE FOR A MEDICAL DEVICE, SYSTEM COMPRISING A PROTECTIVE SLEEVE AND A MEDICAL DEVICE, AND A METHOD FOR THE PRODUCTION THEREOF - A protective sleeve for a medical device including a main body which has a distal end and a proximal end and on the lateral surface of which at least one stop element is disposed, which during insertion of the protective sleeve into an introducer limits the insertion depth of the protective sleeve into the introducer and which preferably is disposed at the distal end of the main body.08-25-2011
20110208283TRANSCATHETER VALVE STRUCTURE AND METHODS FOR VALVE DELIVERY - A valved stent including a stent structure having a generally tubular body portion with an interior area, a first end, a second end, and a longitudinal axis; a valve structure including a plurality of leaflets and positioned within the interior area of the stent structure; and an invertible structure extending from one of the first and second ends of the stent structure. The invertible structure can be rotatable relative to the end of the stent structure from which it extends.08-25-2011
20090036966Device Delivery System With Two Stage Withdrawal - A medical device delivery system provides for a two-stage withdrawal of a deflated balloon portion of a catheter and the remains of a ruptured sheath. The deflated balloon portion is withdrawn from within an expanded medical device a predetermined distance before the remains of the ruptured sheath begins being removed from between the expanded device and a vessel wall. Initiating removal of the deflated balloon portion before the sheath reduces a total amount of drag that is exerted against a self-expanding medical device that has been deployed in a vessel.02-05-2009
20090036967Medical Device Delivery System - A medical device delivery system comprises an inner tube, a medical device disposed about a portion of the distal region of the inner tube, a medical device sheath disposed about the medical device, a medical device sheath retraction device extending proximally from the medical device sheath and an outer sheath disposed about a portion of the medical device sheath retraction device. The distal end of the outer sheath terminates at least one medical device length proximal of the medical device. The medical device sheath is movable relative to the outer sheath and relative to the inner tube.02-05-2009
20110270377DEVICE FOR TREATING AORTIC DISSECTION - A stent assembly (11-03-2011
20080281397STENT HAVING VARIABLE PROPERTIES AND METHOD OF ITS USE - A stent and method of its use, the stent in its expanded configuration, exhibiting varying outward radial force along its length. In use, the expanded stent is of a tapered configuration which provides greater force in vessel regions requiring greater force and less force in regions requiring less. In particular the stent is useful in the ostium regions and at areas of bifurcation in vessels. Varying force over the length of the stent is achieved by varying the number of elements, the density of elements, the thickness of the elements making up the stent body, and maintaining a substantially metal to artery ratio in the expanded stent over its length.11-13-2008
20080281395RATCHETING BIO CELL DESIGNS - A bifurcated stent having a side branch constructed out of a bioabsorbable material. The side branch comprises one or more bio cells which are flexible and easily deformable when the stent is in the unexpanded state. The bio cells have a locking member which fixedly holds the bio cells in place once the stent assumes the expanded state. The locking member uses oppositely directed hooks or ratchet teeth to prevent contraction in the bio cells once the expanded state is assumed. By having an appropriate alternation between flexibility and rigidity the side branch is flexible enough to deal with the geometric difficulties of bending and deploying a side branch while being fixed and rigid enough to properly support and scaffold a side branch assembly. The deployment of the side branch can be facilitated by the use of a ratcheting device. The side branch can also have a flared shape.11-13-2008
20080228259ENDOVASCULAR DEVICES AND METHODS TO PROTECT ANEURYSMAL WALL - Methods and systems for preventing aneurysm rupture and reducing the risk of migration and endoleak are disclosed. Specifically, a hardenable liner is applied directly to treat the interior of the aneurysm site. The hardening agent remains flexible in the pliable mode so that the liner can be collapsed and compressed in a delivery catheter. After deploying in the aneurysm, the flexible liner expands by the hemodynamic force and conforms to the inner surface of the aneurysm. While the liner is still conforming to the aneurysm, the hardening agent in the liner is activated by the body environment and becomes stiff. The liner is thus transformed from the pliable mode to the strengthening mode and providing support for the aneurysm wall. Also disclosed are methods to deliver the hardenable liner directly to treatment sites.09-18-2008
20080228258MEDICAL SYSTEMS AND RELATED COMPONENTS AND METHODS - This invention relates to medical systems and related components and methods. In some embodiments, the systems include a sleeve configured to be disposed between an adaptor and a catheter assembly including an outer sheath surrounding an inner member.09-18-2008
20080228257Covered stent balloon and method of using same - An improved stent delivery system which provides a covered stent as a section of a deployment balloon is disclosed. The invention satisfies the need for a highly deliverable stent system with maximum flexibility, reduced profile, and consistent, smooth shaping along its length. The stent system described further minimizes damage to a drug-eluting coating and promotes uniform expansion of the stent during deployment. The invention provides a stent delivery system wherein a stent has a substantially impermeable cover in which the cover is detachably associated with a catheter shaft. The cover and the stent detach from the catheter shaft upon expansion of the stent to a desired diameter. In one embodiment, detachment is achieved automatically. In another embodiment, detachment is manual.09-18-2008
20080228256Braided Flange Branch Graft for Branch Vessel - A braided flange branch graft formed of a braided super elastic memory material includes a neck between an inner flange and an outer flange. The neck is positioned in a side opening in a sidewall of a main stent graft and the inner flange and outer flange are deployed on opposite sides of the sidewall. The inner flange and the outer flange have a diameter greater than a diameter of the side opening in the sidewall of the main stent graft. Thus, the sidewall of the main stent graft is sandwiched between the inner flange and the outer flange securely and simply mounting the braided flange branch graft to the main stent graft. The braided flange has a substantially unobstructed fluid communication passage therethrough. Further, when stretched into a substantially cylindrical shape for delivery, the braided flange branch graft has a small delivery profile and is extremely flexible.09-18-2008
20080228255Positionable Stent-Graft Delivery System and Method - A positionable stent-graft delivery system includes a stent-graft, a tip capture mechanism radially constraining a proximal portion of an anchor stent ring of the stent-graft, and a positioning mechanism for positioning the tip capture mechanism. The positioning mechanism includes tensioner guides and cords. To position the tip capture mechanism, a cord is retracted through the respective tensioner guide, e.g., by the physician. Retraction of the cord, in turn, pulls the tip capture mechanism towards a distal end of the tensioner guide. In this manner, the stent-graft is readily repositioned.09-18-2008
20080288043DELIVERY SYSTEM HAVING A SELF-EXPANDING BRAIDED STENT - An insertion system with a self-expanding braided stent (11-20-2008
20080288042Deployment system for an expandable stent - A deployment system and method for an expandable stent are described. The deployment system includes an expandable stent in an unexpanded state and a first tubular sheath having one or more first flaps extending from a distal end thereof. The one or more first flaps overlie one or more first longitudinal portions of the stent. A second tubular sheath may overlie the first tubular sheath. The deployment method includes advancing a deployment system including an expandable stent in an unexpanded state to a treatment site in a body vessel. At the treatment site, one or more second longitudinal portions of the stent are radially expanded to partially deploy the stent, and then one or more first longitudinal portions of the stent are radially expanded to fully deploy the stent. Each of the first and second longitudinal portions preferably extends from a proximal end to a distal end of the stent.11-20-2008
20100036474METHOD AND ASSEMBLY FOR DISTAL EMBOLIC PROTECTION - Methods and assemblies are described for capturing embolic material in a blood vessel or other body cavity during cardiovascular or valve replacement and repair surgery, wherein access is provided through the apical area of the patient's heart. The distal embolic protection assembly generally comprises a sleeve having a lumen, an actuating member having proximal and distal ends, wherein the actuating member is movably disposed within the lumen, and a filter assembly coupled to the distal end of the actuating member. The filter assembly generally comprises a porous bag having an open proximal end, a collapsible and expandable frame that is coupled to the open proximal end of the porous bag, and at least one support spine disposed at least a part of the longitudinal axis of the porous bag. The porous bag is configured such that it permits blood to perfuse freely through while capturing embolic material and other debris.02-11-2010
20080312728METHOD AND DEVICE FOR ALIGNING A STENT WITH A STENT SUPPORT - A method for aligning a stent with a stent support includes the steps of (1) placing a stent support and a stent mounted on the stent support in a vertically position with the stent support's first support element at a lower position and the stent support's second support element at an upper position; (2) obtaining a digital image of the stent support and stent; (3) analyzing the digital image of the stent support and stent to compute the vertical position of the stent's upper end; (4) computing a desired position of the second support element based on the position of the stent's upper end; and (5) using a positioning device to move the second support element to the desired position. The movement of the second support element causes the conical sections of the first and second support elements to engage the respective ends of the stent to center the stent around a core element of the stent support and to secure the stent in a longitudinal direction of the stent support.12-18-2008
20080208310Drug Delivery System - Apparatuses and methods for coating and/or loading a medical device with a therapeutic agent prior to or during the placement of the medical device within the patient's body. In one variation, the medical device is coated and/or loaded with a therapeutic agent while the device is positioned in a delivery apparatus. In another variation, the delivery apparatus comprises a reservoir for retaining a therapeutic agent. The user may release the therapeutic agent from the reservoir prior to or during the placement of the device to coat and/or load the device with the therapeutic agent.08-28-2008
20080312730BALLOON CATHETER DEVICE - Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.12-18-2008
20090264979MULTIPLE INDEPENDENT NESTED STENT STRUCTURES AND METHODS FOR THEIR PREPARATION AND DEPLOYMENT - Blood vessels and other body lumens are stented using stent structures comprising a plurality of radially expansible rings where at least some of the rings comprise axially extending elements which interleave with axially extending elements on adjacent unconnected rings. The ring structures may be open cell structures or closed cell structures, and the axially extending elements will typically be formed as part of the open cell or closed cell structure.10-22-2009
20090264978Friction-Release Distal Latch Implant Delivery System and Components - Provided herein are systems, devices and methods for the delivery of medical implants. A distal end portion of the implant is coupled with a delivery device by surface friction between the implant and an underlying surface such that the distal end portion is frictionally locked and maintained in the appropriate position and state prior to delivery. When positioned within the patient at the proper location, the state of frictional lock can be released to free the distal end portion of the implant from the delivery device.10-22-2009
20080319525Self-Expanding Prosthesis - In one preferred embodiment, a prosthesis is provided that can be selectively expanded by increasing the temperature of the prosthesis within the patient. The prosthesis is composed of a shape memory material that expands when heated to a temperature greater than an average body temperature, allowing the user to selectively heat and therefore expand the prosthesis at a desired location.12-25-2008
20080208307Treatment of Vascular Bifurcations - Apparatus for treatment of a vascular bifurcation, where a first blood vessel (08-28-2008
20080269867Catheter Having Guidewire Channel - Catheter for delivering an expandable prosthetic device. The catheter has a guidewire channel for delivering a side branch guidewire to a side branch target site. An expandable prosthetic device can be loaded on to the distal end of the catheter.10-30-2008
20080294232MAGNETIC CELL DELIVERY - Systems and methods of delivering magnetically loaded cells to target areas within a patient are described. Cells rendered magnetically attractable by being loaded with magnetic microparticles are delivered from a hollow interventional device distal tip and attracted towards a previously placed implant. Implants, such as stents, are magnetized by application of a magnetic field sequence; magnetized cells are attracted by the local magnetic domains and associated field gradients within the implant, and adhere to and are retained by the local tissues, such as tissue protrusions through a stent struts. Application of a magnetic field or field gradient sequence concurrently with the magnetic cell delivery facilitates pulling the cells away from the lumen axis and towards the implant surface and vessel or organ walls.11-27-2008
20100145429Introducer sheath and method of manufacture - The present invention relates to a medical device delivery system. The delivery system includes an introducer sheath having an elongated tubular member having a passageway extending generally longitudinally therethrough. The passageway is defined by an inner surface of the tubular member and is configured to receive a medical device moveably disposed therein, where at least a portion of the inner surface of the inner tube comprises a non-uniform surface configured to reduce surface contact between the inner surface and the medical device. The delivery system includes an inner catheter configured to slidably extend throughout the passageway of the introducer sheath. A prosthesis is disposed within a distal portion of the introducer sheath, where the prosthesis is supported within the introducer sheath by the inner catheter.06-10-2010
20080269866Side Branched Endoluminal Prostheses and Methods fo Delivery Thereof - An expandable prosthetic device and method of delivery that allows the initial placement of multiple guidewires into selected target sites. The prosthesis includes a main body device. This main body device has a separate side branch guidewire lumen that passes through the main body device and through a side opening in the main body device. As the main body device is advanced, the side opening is self guided (by the side branch guidewire) and self-aligns to the side branch vessel ostium. The main body device is then deployed, leaving the side branch guidewire in place. A side branch device is then advanced along the side branch guidewire through the main body device, through the side wall opening and into the native side branch vessel. The side branch device can then be deployed to engage the main body device and the native side branch vessel.10-30-2008
20100145430RETRACTABLE CATHETER - A retractable catheter including an elongate tubular sheath having at least in a distal portion made of a relatively flexible material, a reinforcing structure made of a relatively inextensible material incorporated in the relatively flexible material of the sheath along at least a portion thereof, and a pull element for transmitting a pull force longitudinally to the sheath and the reinforcing structure, wherein the pull element is connected directly to a portion of the reinforcing structure exposed from the relatively flexible material to transmit the pull force directly to the reinforcing structure.06-10-2010
20120197379DELIVERY SYSTEMS AND METHODS OF IMPLANTATION FOR PROSTHETIC HEART VALVES - A delivery system with sequential release mechanism and method of delivering and deploying an implantable stented device into a body lumen including a tabular body, a plurality of activation members extending from the distal end of the tubular body, and a plurality of disks. Each disk includes a proximal and distal surface, at least one stent engagement element attached to the distal surface of the disk and at least one aperture. At least one activation member attaches to the proximal surface of a first disk and at least one activation member passes through an aperture of the first disk and attaches to the proximal surface of a second disk. At least one stent engagement element attached to the distal surface of the first disk passes through an aperture of the second disk. Axially movement of the activation members causes sequential release of the stent engagement elements from a stented device.08-02-2012
20120197378BALLOON CATHETER WITH INTEGRATED STOP FEATURE FOR PRECISE STENT PLACEMENT, FOR OSTIAL, RENAL AND OTHER LOCATIONS - Systems and methods for delivering a medical device to a vessel within a mammalian body are provided. The medical device may have a tubular body with an interior and an exterior surface. A delivery device may include a balloon assembly having one or more balloons, with a proximal and portion with the medical device mounted thereon. When the balloon assembly is partially inflated the proximal portion has a larger diameter than the distal portion which may be inserted into the vessel. The proximal portion may have a sufficiently large diameter that prevents it from being inserted into the vessel and permits it to function as a stop. The balloon assembly may be further inflated to deploy the medical device within the vessel. The medical device diameter may expand and optionally contact the interior surface of the vessel when deployed. Alternatively, the invention may be configured to dilate tissue, without deploying a medical device.08-02-2012
20120197377WIRE WITH COMPLIANT SHEATH - An apparatus for deployment and retrieval of a self-expanding intravascular stent includes an intravascular delivery wire and one or more rings of compliant material fixedly mounted over at least a portion of the intravascular delivery wire. The distal portion of the intravascular delivery wire can be stepped, having a smaller diameter than the proximal portion, and forming a hard stop. Distal and proximal bands can also be provided on the intravascular delivery wire to form hard stops. A self-expanding intravascular stent can releasably retained on the compliant material.08-02-2012
20120197376VASCULAR DELIVERY SYSTEM AND METHOD - A delivery device and method for deploying a stent-graft within a body lumen of a patient are provided. According to one embodiment, the delivery device includes a tubular member lock that couples an outer tubular member of the device with an inner tubular member, such that as the outer tubular member is retracted to deploy the stent-graft, the distal-most end of the delivery device is also retracted. In one embodiment, the delivery device also includes a stent lock disposed on an intermediate tubular member that is configured to releasably couple the stent-graft and the intermediate tubular member. The inner tubular member and the outer tubular member are configured to be coupled to one another such that movement of the outer tubular member results in movement of the inner tubular member with respect to the intermediate tubular member so as to deploy the stent-graft.08-02-2012
20110270374SYSTEM AND METHOD FOR DEPLOYING AND POSITIONING AN ENDOVASCULAR DEVICE - A dilator tip (11-03-2011
20090182407LUER OR CLAMP-TYPE SUTURE RELEASE APPARATUS AND METHOD FOR LOADING AND DELIVERING A STENT - An assembly for delivering a self-expanding stent within a body lumen is includes a self-expanding stent, a delivery catheter for delivering the stent, a transfer member removeably engagable with a distal end of the delivery catheter, and an elongate filament for manipulating the stent through the passage of the transfer member. The delivery catheter includes an elongate flexible shaft having a stent holder at its distal end for restraining axial movement of the stent when the stent is disposed within a hollow cylindrical passage of an elongate tube moveably disposed over a portion of the shaft, and a handle secured to the proximal end of the flexible shaft. The elongate filament is releasably secured to the stent, and the ends of the filament are accessible at the handle to permit movement of the stent within the device by manipulation of the filament.07-16-2009
20090182408Selective Coating of a Balloon Catheter with Lubricious Material for Stent Deployment - A predetermined arrangement of differentially lubricious areas on a balloon catheter for controlling against unexpected movement of a stent carried thereon when in situ in the body.07-16-2009
20110208285STENT DELIVERY SYSTEM - A stent delivery system comprising a catheter having an inner tube and an outer tube surrounding the inner tube; a balloon having a proximal end fixed to the outer tube a distal end fixed to the inner tube and an interior including a proximal portion and distal portion, a stent disposed on the balloon and being expandable from a delivery position to a deployed position by a contrast medium adapted to be supplied to the interior of the balloon, and a contrast medium distribution means disposed in the interior of the balloon adapted to equally distribute the contrast medium to both the proximal portion and the distal portion of the interior of the balloon.08-25-2011
20090030495SYSTEM FOR CONTROLLED PROSTHESIS DEPLOYMENT - A system for controlled deployment of a prosthesis, in which a sheath is retracted from a prosthesis in a body vessel or duct. The system includes a handle for deploying the prosthesis, the handle comprises a base member fixed to a catheter, and a slide member for sliding past the base member, the slide member being attached to an end of a retraction member. The base member includes an opening having the general shape of a rectangular wave for interacting with the slide member, whereby, repeated manipulation of the slide member causes the sheath to be retracted.01-29-2009
20110270373CLOSURE DEVICE - Described here are devices and methods for closing one or more vascular openings. The devices may include a stent graft comprising a stent framework and a graft material at least partially covering the stent framework. The stent framework may comprise one or more axial segments, and at least one of the axial segments may comprise an access port through which a catheter or treatment device may enter the stent graft. The methods may comprise occluding blood flow upstream of a vascular opening, and delivering a closure device to block, cover, or seal the vascular opening.11-03-2011
20090182410EXCHANGEABLE DELIVERY SYSTEM FOR EXPANDABLE PROSTHETIC DEVICES - Exchangeable delivery systems, methods of making delivery systems, and methods of delivering a self-expandable prosthetic device are provided. Delivery systems according to embodiments of the invention include an elongate tubular member defining a passageway with a distal end defining an exchange port, and a distal tip member disposed at least partially within the distal end of the passageway. A pusher is disposed in the passageway to effect axial movement of the distal tip member.07-16-2009
20090182409STENT WITH SELF-DEPLOYABLE PORTION HAVING WINGS OF DIFFERENT LENGTHS - The present invention provides methods and devices for placement of a stent in a bifurcation or ostial lesion. The stent comprises a main body and a flaring portion. The main body is designed to expand and support a main vessel of the bifurcation and defines a main body axis. The flaring portion is disposed on a side of the main body and is adapted to flare radially and offset the main body axis in response to expansion of the main body. The flaring portion comprises at least one distal wing and at least one proximal wing. Each wing is aligned along the main body axis. The at least one proximal wing is longer than the at least one distal wing, providing greater coverage of the proximal side of the side vessel than on the distal surface of the side vessel.07-16-2009
20090182404BIODEGRADABLE SELF-EXPANDING DRUG-ELUTING PROSTHESIS - Disclosed herein is a biodegradable prosthesis that includes a first end, a second end, and an elongate tubular body with a lumen therethrough. The prosthesis has a first outer layer with a drug delivery element that may include polyphosphoester microspheres. The prosthesis also can have a second layer comprising a set of flexible interbraided bioabsorbable filaments. Also, the prosthesis can have a third inner layer comprising a porous thermoplastic material.07-16-2009
20090132021APPARATUS AND METHOD FOR DELIVERY, SPREADING AND DOUBLE-ENDED FIXATION OF VASCULAR GRAFTS - The present invention relates to medical techniques, more particularly to methods and apparatus for delivery and double-ended fixation of vascular prosthesis—grafts or stent-grafts to blood vessel walls in direction from inside these vessels to their outer surface. The apparatus comprises a tubular body with two expandable working heads at the free end, means for securing thereon the prosthesis end. The heads have eight cartridges each, and each of these cartridges is provided with one basic and one standby fastener means, substantially U-shaped staples. A control mechanism is provided consisting of two control modules joined together. The apparatus is also provided with means for positioning inside a blood vessel. There is further proposed a method for delivery and double-ended fixation of an endovascular prosthesis to a blood vessel wall.05-21-2009
20090082842STENT AND DELIVERY SYSTEM FOR DEPLOYMENT THEREOF - A stent, a system for delivering a stent and a method of assembling a stent on a stent delivery shaft. The stent delivery system comprises a delivery shaft and a stent configured to be positioned about the delivery shaft. The stent includes an extension extending circumferentially from a portion of the stent to a free end, thereby defining a shoulder surface. A belt has a first portion fixed relative to the delivery shaft and a second portion positioned circumferentially about at least a portion of the stent to retain the stent in an at least partially constrained configuration. A release wire is configured to releasably engage at least a portion of the belt to retain the belt. The shoulder surface engages at least a portion of the belt to minimize axial movement of the belt during release of the release wire from engagement with the belt.03-26-2009
20120197381STENT-GRAFT WITH PROXIMAL AND DISTAL ATTACHMENT, DELIVERY CATHETER AND METHODS OF MAKING SAME - A metallic or pseudometallic covered stent in which the stent component and the cover component are each fabricated of biocompatible metallic or pseudometallic materials, in which the cover and the stent are joined by at least one juncture at each of a proximal and distal end of the stent and the cover. A method of joining the stent and the cover is also disclosed.08-02-2012
20090118810STENT ASSEMBLY SYSTEM - A stent is provided with modified ends (05-07-2009
20110224774ENDOPROSTHESIS AND DELIVERY SYSTEM FOR DELIVERING THE ENDOPROSTHESIS WITHIN A VESSEL OF A PATIENT - An endoprosthesis is disclosed for implantation at a bifurcation between a main vessel and at least two secondary vessels. The endoprosthesis includes first and second bodies. Each body includes a self-expanding and flexible structure having a proximal region, an intermediate region, and a distal region. The distal region terminates at a free end. The flexible structure defines a leg and a support member adjacent to the leg. The leg terminates at the free end of the distal region. The second body is positioned within the first body. The proximal region of the first body includes a free end configured for positioning within the main vessel. The leg of the first body is configured for positioning within a first secondary vessel. The leg of the second body is configured for positioning within a second secondary vessel.09-15-2011
20090005849Methods and apparatuses for coating a lesion - A method and apparatus to treat regions of a vessel is described. A protein elastin-based polymer is released from the apparatus to coat the vessel lining as a primary therapy or an adjunct therapy with the delivery and deployment of a stent with or without drug coating. The protein elastin-based polymer may include a triblock structure having an elastin pentapeptide as the flanking block and a hydrophilic variant of the pentapeptide as the middle block. Both the flanking and middle blocks can be modified to change the structural and chemical properties of the polymer. In particular, the protein elastin based polymer is adapted to perform at least one of controlling release of a treatment agent, stimulating endothelial cell growth and stabilizing the vulnerable plaque to prevent rupture of the vulnerable plaque.01-01-2009
20090177264Stent Delivery System - A stent delivery system includes a catheter with an axially extending inner core and outer sheath. Axially spaced rings extending from a relatively narrow diameter portion of the inner core proximate the distal end thereof. The rings engage proximal portions of a compacted stent disposed within the sheath and over the core and rings. A proximal handle of the system has a first portion that supports the sheath and a second portion that supports the core for relative displacement of the core and the sheath. Retraction of the sheath relative to the core uncovers the stent engaged by the rings which tends to remain stationary relative to the core so that upon partial retraction of the sheath a distal end of the stent expands to its expanded form. Further retraction of the sheath deploys the stent, retracting the core returns the distal portion of the stent into the sheath.07-09-2009
20090143852STORAGE AND LOADING SYSTEM FOR IMPLANTABLE MEDICAL DEVICES - Storage and loading systems for expandable intraluminal medical devices are described. The systems include a container that defines an opening that tapers from a relatively large first diameter to a relatively small second diameter. A neck region includes structure adapted to engage an outer sheath of a delivery system such that an intraluminal medical device within the chamber of the container can be advanced through the tapered opening to effect compression of the intraluminal medical device and, ultimately, loading of the device into the delivery system. Methods of preparing and intraluminal medical device for implantation in a patient and kits useful in such methods are also described.06-04-2009
20090143849STENT DELIVERY SYSTEM, STENT PLACEMENT METHOD, AND STENT ATTACHMENT METHOD - A stent delivery system which is inserted into an endoscope and is for placing a stent inside a body cavity, this stent delivery system being provided with a long pusher catheter which is flexible; a guide catheter which can pass through the lumen of the pusher catheter in a freely advancing and retracting manner; and a stent which is disposed to the front end of the pusher catheter, and has a cylindrical stent main body into which the guide catheter can be inserted, and a grip piece that is attached so as to extend from the main body and consists of a long narrow member that is pliable and can be disposed in the space between the guide catheter when it is inserted into the lumen of the pusher catheter.06-04-2009
20080319522ANEURYSM FILLER DETACHER - An aneurysm filler detacher mechanism comprising a proximal push support comprising a copper or silver core wire, an insulation layer positioned around the core wire, and an annular flexible layer positioned around the insulation layer.12-25-2008
20080319524System and Method for Delivering a Medical Device to a Body Location - A system for delivering a medical device to a body location. The system includes a sheath (12-25-2008
20090326634METHODS FOR DEPLOYING STENTS IN BIFURCATIONS - A method of deploying a stent in a bifurcation includes introducing two guidewires through the main vessel and using the two guidewires for guiding a dual lumen catheter carrying a stent first to an initial position proximal to the stent deployment position, retracting one wire, and projecting it from the catheter and through a side of the stent a branch guidewire into the second branch vessel, and then moving the catheter to the predetermined deployment position while guided by the main guidewire in the first branch vessel, and the branch guidewire in the second branch vessel. The stent is then expanded, and the catheter is removed with the stent remaining in its deployed position An alternative embodiment includes introducing one wire, advancing the system over the one wire and subsequently introducing the second wire.12-31-2009
20110224771CATHETER - The invention relates to a catheter for introducing into a hollow human or animal organ. Said catheter comprises a catheter tip that protrudes forwards and a region that is encased by an expandable tubular hollow body and that is situated behind the catheter tip. Said catheter is characterised in that a wire spiral is located in the encased region. It can also be advantageous to provide a radiopaque ring, in particular a platinum, gold or tungsten ring, on a hollow shaft of the catheter, together with several rib-type projections running around the hollow shaft and projecting from the latter, in a region in front of and/or behind the radiopaque ring.09-15-2011
20100305681Conical Balloon for Deployment Into Side Branch - A bifurcated catheter assembly has an undeployed state and a deployed state. The assembly comprises a bifurcated inflation shaft defining a shaft inner lumen, a first balloon defining a first balloon lumen, and a second balloon defining a second balloon lumen. The inflation shaft has a first inflation shaft defining a first lumen and a second inflation shaft defining a second lumen. The first balloon defines a first balloon lumen which is in fluid communication with the first lumen. The second balloon defines a second balloon lumen which is in fluid communication with the second lumen. The second balloon has a conical shape.12-02-2010
20080306579Drug Loaded Implantable Medical Device - A drug eluting implantable device includes an exterior surface on the device and at least one recess formed in the exterior surface. The device further include at least one sidewall protruding from the exterior surface adjacent the at least one recess defining a channel with the recess into which the drug may be loaded, the sidewall including a perpendicular portion substantially perpendicular to the exterior surface and the sidewall further including a parallel portion extending from the perpendicular portion, the parallel portion extending from the perpendicular portion at an angle greater than about 90 degrees as measured with reference to the exterior surface12-11-2008
20080306580BLOOD ACESS APPARATUS AND METHOD - A blood access for dialysis includes a radially distensible support structure having an open lattice structure defining a support wall having interstitial open areas and defining exterior and luminal wall surfaces; a first porous polymeric portion having a plurality of pores, the first porous polymeric portion being securably disposed over at least a portion of the exterior wall portion of the support structure; a second porous polymeric portion having a plurality of pores, the second porous polymeric portion being securably disposed over at least a portion of the luminal portion of the support structure; and a biodegradable and/or bioabsorbable material disposed within the pores of the first polymeric portion and/or pores of the second polymeric portion.12-11-2008
20110224773METHODS AND DEVICES FOR PROTECTING A PASSAGEWAY IN A BODY WHEN ADVANCING DEVICES THROUGH THE PASSAGEWAY - A liner is advanced through a narrowed region in a vessel such as the internal carotid artery. The liner is advanced through the narrowed region in a collapsed position. A stent is then advanced through the liner and expanded to open the narrowed region. The liner may also have an anchor which expands an end of the liner before the stent is introduced.09-15-2011
20090024200Drug Eluting Medical Device and Method - A drug elution stent includes a stent framework and a drug elution portion disposed on the stent framework. The drug elution portion includes a first sugar layer disposed on the stent framework, at least one therapeutic agent layer disposed on the first sugar layer and a second sugar layer disposed on the at least one therapeutic agent layer. A method of manufacturing a drug elution stent includes the steps of providing a stent having a stent framework and coating at least a portion of the stent framework with a drug elution portion. The drug elution portion includes a first sugar layer disposed on the stent framework, at least one therapeutic agent layer disposed on the first sugar layer and a second sugar layer disposed on the at least one therapeutic agent layer01-22-2009
20090082843SELF-EXPANDING STENT WITH ENHANCED DELIVERY PRECISION AND STENT DELIVERY SYSTEM - The invention is directed to a self-expanding stent for implantation into a body lumen, such as an artery. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by a plurality of interconnecting members placed on the stent in a collinear arrangement such as to create at least one continuous spine which extends along the length of the stent. The invention is also directed to a stent delivery system for implantation of a stent in a vessel which includes an outer tubular member having a restraining sheath and an inner tubular member having a distal end which has a compressed stent mounted thereto. The proximal end of the inner tubular member is connected to a housing assembly which prevents the inner tubular member from moving when the outer tubular member is retracted to deploy the stent. The proximal end of the outer tubular member is attached to a pull-back handle which is slidably mounted on the base of the housing assembly. When the pull-back handle is retracted, the restraining sheath is retracted to deploy the sheath, while the inner tubular member remains stationary.03-26-2009
20090319018DELIVERY SYSTEM FOR A MEDICAL DEVICE AND METHOD FOR OPERATING A DELIVERY SYSTEM FOR A MEDICAL DEVICE - The invention relates to a delivery system for a medical device and a method for operating a delivery system for a medical device, in particular a stent having a proximal end and a distal end, an inner shaft enclosing an inner lumen and an outer shaft surrounding the inner shaft in at least some areas and enclosing an intermediate lumen. One or more openings are provided in the inner shaft establishing a fluid connection between the inner lumen and the intermediate lumen.12-24-2009
20090198317Stent Delivery and Deployment System - A stent delivery and deployment system for placement of vascular stents having apertures therein for deployment at intersecting blood vessels. The device employs a guide wire having an angled distal end which is threaded into position at the intersection of a first blood vessel and second blood vessel. With the angled portion of the guide wire threaded into the intersecting blood vessel, the stent may be translated along the guide wire to easily position the aperture in line with the intersecting blood vessel.08-06-2009
20090198316Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A method of deploying an implantable stented device in an anatomical location of a patient, including the steps of providing a delivery system with first and second stent engagement structures at its distal end, attaching a first structural element of the stented device to the first stent engagement structure and attaching a second structural element of the stented device to the second stent engagement structure, advancing the stented device to an implantation site, and sequentially disengaging the first structural element of the stented device from the first stent engagement structure of the delivery system and then disengaging the second structural element of the stented device from the second stent engagement structure.08-06-2009
20090198318SYSTEM AND METHOD FOR DELIVERING AND DEPLOYING AN OCCLUDING DEVICE WITHIN A VESSEL - A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.08-06-2009
20120095541Stent for Temporary Fitting in a Body Cavity - A stent for positioning in a body lumen having a cylindrical shape extending along a longitudinal axis surrounded by a stent wall which defines a diameter of an axial passage communicating with openings on two opposite ends of the stent. The wall is configured so as to be elastic under tension whereupon an exertion of a tensile force acting on one of the ends of the stent in the longitudinal direction, decreases the diameter of the04-19-2012
20110144735INTRODUCER - A stent graft introducer (06-16-2011
20090264976Combination Dilator-Embolic Protection Device - A combination dilator-embolic protection device and method for simultaneously dilating a stenotic body vessel while providing protection from embolic debris and constant perfusion through a treatment site is disclosed. The device includes an expandable dilator-filtration component having a first filtration segment, a second filtration segment and an interior volume, wherein the first filtration segment has at least one opening of a first size that permits passage of embolic debris into the interior volume and the second filtration segment has openings of a second size that is smaller than the first size, such that the second filtration segment retains the embolic debris within the interior volume. The dilator-filtration component is expandable into apposition with a stenosis in the body vessel to provide a radial distensible force to dilate the stenotic body vessel while capturing embolic debris within the dilator-filtration component and allowing blood flow through the dilator-filtration component.10-22-2009
20090082840METHOD FOR LOADING A STENT INTO A DELIVERY SYSTEM - Methods for assembling a stent delivery system are provided, as well as the stent delivery assemblies and devices formed by such methods. Also provided is a method for loading a stent into a delivery system.03-26-2009
20120197380Medical Devices and Related Methods - This disclosure relates to medical devices and related methods. In some embodiments, the methods include applying a material to the balloon and then removing the material from one or more regions of the balloon.08-02-2012
20090082841APPARATUS FOR SECURING STENT BARBS - A stent system comprising a stent body. At least one barb extends from the stent body and is configured such that a free end thereof is biased to extend radially outward from the stent body. A retaining mechanism is positioned to engage the at least one barb when the stent body is in a compressed state and retain the at least one barb in a tucked position relative to the stent body.03-26-2009
20110230947THORACIC INTRODUCER - A stent graft delivery device (09-22-2011
20110230946EASY MARKER PLACEMENT BALLOON MOLD - A catheter balloon is formed from a mold process in which raised dimples or shallow divots are formed on the outer surface using indentations or raised beads on the mold surface. The dimples or divots are located at the transition between the body portion of the catheter balloon and the neck or taper section. The presence of the dimples or divots serves the dual purpose of identifying the transition between the two regions for placing a visual marker on the balloon to be used in positioning the balloon, and also to assist in the retention of a vascular stent on the balloon.09-22-2011
20110230951DEVICE FOR RAPID REPAIR OF BODY CONDUITS - A self-expanding stent-graft provided in a diametrically compacted state for implantation and retained preferably by a constraining sheath, useful for the temporary or permanent repair of injured, partially or entirely transected body conduits including blood vessels. It may be used under direct visualization to quickly stop or substantially reduce loss of blood from such damaged vessels and to quickly re-establish perfusion distal to the injury site. The device would typically be implanted under emergency room conditions but also be used in field situations by trained medical technicians. After an end of the device is inserted into a blood vessel through the injury access, deployment preferably initiates from the device end in a direction moving toward the middle of the length of the device by directionally releasing the constraining sheath. In a preferred embodiment, the two opposing ends of the device are individually deployable from the compacted, small diameter intended for insertion into a vessel, to the larger diameter at which they fit interferably into a portion of the vessel.09-22-2011
20110230948STENT DELIVERY SYSTEM HAVING A FIBROUS MATRIX COVERING WITH IMPROVED STENT RETENTION - The present invention provides an intraluminal stent delivery catheter device having improved stent retention. Particularly, the present invention is directed to a catheter having an expandable member and a fibrous matrix positioned over the expandable member and a stent mounted on the outer surface of the fibrous matrix. The fibrous matrix provides mechanical interface for improved stent retention, delivery and deployment.09-22-2011
20110230950STENT - A stent is deployed within a body passageway. The stent is configured to curl a varying degree upon itself as the stent is inserted into the passageway depending on the size of the passageway. In this way a single size stent may be employed in different size passageways. The stent may have a generally rectangular shape or other shape. The stent may be made of one or more materials. For example, a spine of the stent may be made of a material different than a material used for the outer edges of the stent. The edges of the stent curl towards the spine during insertion into the passageway without any further manipulation of the stent or by application of any additional mechanical means. The stent may have a varying thickness and/or width along the longitudinal axis of the stent.09-22-2011
20090099636LOW FRICTION VASCULAR IMPLANT DELIVERY DEVICE - A vascular implant delivery device is disclosed and can include a body and a syringe attachment formed in the body. Further, the device can include an outer sheath extending from the body. The outer sheath can include a distal end that can be configured to receive a vascular implant. The device can also include at least three implant support structures that can extend radially inward from the distal end of the outer sheath. The implant support structures can be configured to support and guide a vascular implant moving through the outer sheath. Additionally, the device can include an inner carrier catheter slidably disposed within the outer sheath.04-16-2009
20090099640Axial Pullwire Tension Mechanism for Self-Expanding Stent - An axial pull wire tension mechanism for a self expanding stent includes a delivery system composed of an inner tube (04-16-2009
20120078342POSITIONING CATHETERS USING IMPEDANCE MEASUREMENT - The invention relates to a method for determining the position of a catheter in a blood vessel relative to a change in the vascular cross section, comprising the steps: providing a catheter that includes at least two electrodes which can be brought into electrically conductive contact with the surrounding blood while the catheter is being positioned in the blood vessel, wherein the two electrodes are installed on the catheter along the longitudinal axis at a defined distance from each other; advancing the catheter in the vessel to be treated, toward the change in the vascular cross section; and measuring the impedance across the two electrodes while the catheter is being advanced; and to a catheter for use in a method of this type.03-29-2012
20120078341STENT WITH SUPPORT BRACES - A stent includes expandable rings formed from a plurality of interconnected struts. A plurality of bridges couple adjacent rings together. The bridges are connected to adjacent rings at first and second connection points, and a first brace element is disposed therebetween. The first connection point is circumferentially offset relative to the second connection point so that the bridge is transverse to the longitudinal axis of the stent. The first brace element of one bridge engages an adjacent bridge or a brace element of the adjacent bridge when the corresponding adjacent rings are in the contracted configuration thereby providing additional support and rigidity to the stent to lessen buckling of the stent during loading onto a delivery catheter or during deployment therefrom.03-29-2012
20120078340STENT POSITIONING AND DEPLOYMENT ASSEMBLY AND METHOD FOR TREATING A SIDE-BRANCH VESSEL - A stent positioning and deployment assembly for a constricted branched vessel is provided which includes a guide wire, a stent, a first inflatable balloon disposed within the stent and being separable from the stent, and a second inflatable balloon located proximate the first balloon. The first and second balloons each have a collapsed state and an expanded state. The inflation of the first and second balloons are controllable independently of each other, such that each of the first and second balloons may be placed into the expanded state independently of each other.03-29-2012
20080262592INTRALUMINARY STENT RELOCATING APPARATUS - An apparatus for moving an object disposed within a body lumen. The apparatus includes a first sheath, a coupling member and at least one contraction member for engaging at least a portion of the object. The coupling member is movable relative to the first sheath between a retracted position and a capture position. In the retracted position, a distal portion of the coupling member is disposed within the first sheath. In the capture position, the coupling member distal portion is disposed outside the first sheath. The coupling member is also selectively attachable to the object in at least the capture position. When the coupling member is attached to the object and the contraction member is directly engaged with the object, a predetermined coupling member movement relative to the contraction member radially contracts at least a portion of the object thereby facilitating movement of the object within the body lumen.10-23-2008
20080262591Stent inserting device - A stent inserting device is used in inserting a self-expandable stent with leading and trailing ends into a tubular organ of a living body. The stent inserting device includes a grip body, an external tube attached to a front end of the grip body, a push member movably inserted into the external tube from a rear end of the grip body, and a tubular cap for removably receiving the stent in a compressed state. The tubular cap has a front end operatively connected to the push member and a rear end slidably fitted to a front end of the external tube. The stent inserting device is designed to hold the stent within the tubular cap in such a manner that the stent is first expanded at the trailing end and then gradually expanded toward the leading end when the tubular cap is pushed away from the external tube.10-23-2008
20080262590Delivery System for Stent-Graft - A delivery system for selectively holding and deploying each end of an endoprosthesis includes a spindle having a spindle body. The spindle further includes proximal spindle pins and distal spindle pins extending radially outward from the spindle body. The delivery system further comprises a sleeve and a middle member sleeve. The endoprosthesis includes proximal spindle pin catches and distal spindle pin catches at proximal and distal ends of the endoprosthesis. The distal spindle pins extend into the proximal spindle pin catches and the sleeve radially constrains the proximal end of the endoprosthesis. The proximal spindle pins extend into the distal spindle pin catches and the middle member sleeve radially constrains the distal end of the endoprosthesis. Spindle pins may be omitted at one or both ends of the endoprosthesis, in some configurations.10-23-2008
20090204198Introducer for endovascular grafts and stents - An introducer assembly for introducing a stent-graft (08-13-2009
20090204199Apparatus for and method of fitting a stent-graft or similar device - A fitting device (08-13-2009
20090210046HANDLE ASSEMBLY FOR A DELIVERY SYSTEM - A delivery system incorporating a belt for accomplishing relative movement between components of the system. In one aspect, a handle assembly of the delivery system includes a trigger as well as a thumbwheel assembly each configured to activate longitudinal movement of the belt.08-20-2009
20130013048MULTIPLE DRUG DELIVERY FROM A BALLOON AND A PROSTHESIS - Disclosed is an interventional device for delivery of therapeutic agents from an angioplasty balloon and from a prosthesis such as an intraluminal stent. The invention also relates to the method of loading the beneficial agents onto the balloon and the device, as well as the method of delivery of the agents from separate surfaces. The invention also relates to an interventional device having a prosthesis surface that is loaded with a first beneficial agent, and a balloon surface loaded with a second beneficial agent. The invention also relates to a method of loading multiple beneficial agents onto the prosthesis surfaces and the balloon surfaces, and to a method of manufacturing an interventional device for the delivery of a first beneficial agent and a second beneficial agent from separate surfaces.01-10-2013
20090216308Curve forming apparatus and curvable stent graft - A stent graft delivery arrangement for a stent graft (08-27-2009
20090099637STENT DELIVERY SYSTEM - The present invention relates to a delivery system for a self-expanding stent with a hollow cylindrical body and a proximal and a distal end. At least the proximal end thereof has projecting loops pointing alternately in the proximal and distal direction, the loops having a shoulder and straight sections. In addition, there is an outer tube which passes through the stent and an inner tube which passes through the outer tube, the inner tube and the outer tube being designed to move axially with respect to one another. In addition, it is fitted with a locking system for the projecting loops at the proximal end of the stent for introduction of the stent into the body vessel, the locking system having a cap element with pin elements fixed to it which point axially in the proximal direction of the delivery system and a first engagement unit for the pin elements which is positioned proximal with respect to the cap element in the delivery system.04-16-2009
20090192584Medical Systems and Related Methods - Medical systems and related methods are disclosed. In some embodiments, the medical systems include an inner tubular member defining an aperture and an outer tubular member at least partially surrounding the inner tubular member. The inner and outer tubular members can be arranged such that an implantable medical endoprosthesis can be disposed therebetween.07-30-2009
20090254167BIFURCATED STENT DELIVERY SYSTEM AND METHOD OF USE - An endovascular sleeve which can be utilized to navigate a pair of guidewires to a bifurcated body passageway such that, once in place, the guidewires are substantially untwisted or untangled. This greatly facilitates delivery of the bifurcated stent to the bifurcated artery.10-08-2009
20090254166INTERVENTIONAL CATHETER SYSTEM AND METHODS - An interventional catheter is adapted for treating a blood vessel. In an embodiment, the catheter includes an elongate shaft sized for insertion in a blood vessel and a stent positioned on a distal region of the elongate shaft. An expandable dilation member is coupled to a distal region of the elongate shaft. The expandable dilation member is adapted to expand outward. A stent containment member is positioned over the elongate shaft and the stent to contain the stent in a collapsed state.10-08-2009
20090254165Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A delivery system for delivering an implantable stented device to a lumen of a patient, the delivery system including an elongated body having a proximal end and a distal end, a driver mechanism positioned at the proximal end of the elongated body, an elongated threaded rod located axially distal to the driver mechanism, and a sheath including an elongated tubular portion having a hollow interior portion with a first diameter that is sized for compression and retention of the implantable stented device in a compressed configuration for delivery to a body lumen.10-08-2009
20090254168DELIVERY SYSTEM FOR MEDICAL DEVICE - A system for delivery of a medical device to a target site within the body of a patient includes an introducer sheath, and a delivery assembly receivable within a passageway of the sheath. The delivery assembly comprises an inner tubular and an outer tubular member. At least a distal portion of the inner tubular member has a diameter such that the medical device is receivable thereover. The outer tubular member is generally coaxial with the inner tubular member, and has a length such that the outer tubular member distal end terminates proximal to the inner tubular member distal portion. The outer tubular member has a first outer diameter at the proximal end and extends for a length of the outer tubular member to a first diameter boundary point. The outer tubular member has a gradual inward taper in the distal direction from the boundary point to a second outer diameter, and has an abrupt outward taper in the distal direction from the second diameter to the first diameter.10-08-2009
20090259284Resonating Stent or Stent Element - A tubular member adapted for endovascular delivery in a human patient comprises a tubular wire framework and the tubular wire framework forms the core of a signal device. The signal device further includes a coil, which is wrapped around the core to form an inductor, and a capacitor coupled to the inductor to form an inductor capacitor circuit. The signal device can be excited and signals acquired therefrom to determine the position and/or orientation of the signal device and the tubular member. The relative positions and/or orientations of (1) the signal device and/or the tubular member and (2) a device having a signal generating element or a signal generating element being advanced toward the signal device, tubular member or framework can be monitored. Relative positions and/or orientations of a plurality of signal devices in a tubular wire framework also can be determined after the framework is deployed in a vessel and compared to predetermined positions and/or orientations.10-15-2009
20090259287LOADING APPARATUS AND METHOD FOR EXPANDABLE INTRALUMINAL MEDICAL DEVICES - An apparatus for loading an expandable intraluminal medical device into a delivery device has a flexible main body with first and second rolled ends that enable the main body to alternatively adopt a substantially flat configuration that exposes a portion of the inner surface and a helical configuration that defines an interior chamber adapted to receive said expandable intraluminal medical device. An expandable intraluminal medical device is prepared for loading into a delivery device by placing the device on the main body of the loading apparatus while in the substantially flat configuration and then transforming the main body into the helical configuration. The medical device can then be compressed and forced out of the loading apparatus—and into a delivery device—by applying rotational and translational force to one end of the loading apparatus. Related kits and methods are also described.10-15-2009
20090259288Catheter device for delivery of stents to bifurcated arteries - The present invention uses several innovative means in order to place two stents into branched arteries that have atherosclerotic disease. The stent delivery catheter has means to place two separate guide wires into the two arteries, deploy the first stent in the main artery and provide an opening in the stent as well as a guide wire in the branch artery for the second stent carrying catheter to be threaded into the branch artery.10-15-2009
20100152830Single Wire Stent Delivery System - A stent delivery system for deployment at a bifurcated vessel includes a catheter and a balloon. The length of the balloon is defined by a proximal balloon region and a distal balloon region. The proximal balloon region is disposed about a first longitudinal axis and the distal balloon region is disposed about a second longitudinal axis. The balloon has an unexpanded state and an expanded state, and a bend along its length. The proximal balloon region intersects the distal balloon region at the bend. In both the unexpanded state and the expanded state, at least one of the first longitudinal axis and the second longitudinal axis define an oblique angle relative to the main vessel longitudinal axis.06-17-2010
20100152828DEVICES AND METHODS FOR ACCESSING AND TREATING AN ANEURYSM - Devices for treating aneurysms are disclosed. The devices are adapted and configured to modify blood flow at the aneurysm. More specifically, the invention discloses devices for treating cerebral aneurysms using devices adapted and configured to be delivered to a blood vessel in the brain on a distal tip of a microcatheter. The aneurysm devices comprise: a device adapted to be delivered to a blood vessel aneurysm on a distal tip of a catheter and further adapted to modify blood flow at the aneurysm.06-17-2010
20100161024OVER THE ENDOSCOPE INTRODUCER FOR STENTS - Over-the-scope stent introducers for detachably engaging at least a portion of the outside of an endoscope insert and for delivering a stent are provided. Embodiments include an inner member having a distal first end portion and a proximal second end portion and openings defining a channel. The inner member includes an outer surface, inner endoscope engaging surface, and stent abutting restraint disposed at the first end portion. Embodiments also include an outer member having a distal section and proximal section having openings defining a passageway sized to slideably receive at least a portion of the inner member, and a stent carrying inner chamber disposed at the distal section passageway and being configured to releasably contain a stent. In alternative embodiments, the inner and outer members are elongated to dispose substantially concentrically over a majority of an endoscope insert.06-24-2010
20100161023AUTOMATIC TRACKING OF A TOOL UPON A VASCULAR ROADMAP - Apparatus and methods are described including generating a road map of a blood vessel in a portion of a subject's body. A given feature that is within the portion of the subject's body is identified in the road map, the given feature being visible even in images of the portion the generation of which does not include use of a contrast agent. A tool is inserted into the blood vessel, and a current location of a portion of the tool is determined with respect to the given feature, by imaging the tool and the feature. In response to the determined current location, a current position of the tool within the road map is determined. In response to determining the current position of the tool within the road map, the current position of the tool with respect to the road map is displayed. Other embodiments are also described.06-24-2010
20100161022PRE-DEPLOYMENT POSITIONING OF AN IMPLANTABLE DEVICE WITHIN A MOVING ORGAN - Apparatus and methods are described for deploying an implantable tool at an implantation location of a blood vessel. The tool is placed at the implantation location in a non-deployed configuration. A plurality of image frames are acquired of the non-deployed tool at the implantation location, during respective phases of the vessel's motion cycle. A stabilized image stream is generated of the non-deployed tool at the implantation location. It is determined based upon the stabilized image stream of the non-deployed tool that, during the vessel's motion cycle, the tool moves from the implantation location by a given distance in a first direction. Movement of the tool by the given distance is accounted for, by deploying the tool at a deployment location that is distant from the implantation location in the opposite direction to the first direction. Other embodiments are also described.06-24-2010
20100179635PROSTHESIS DEPLOYMENT SYSTEM - An introducer for an expandable endovascular prosthesis having a self expanding stent has a distal prosthesis positioning mechanism and a proximal prosthesis retention mechanism. The proximal prosthesis retention mechanism includes a cylindrical sleeve adapted to retain the self expanding stent. A release mechanism extends proximally from the distal prosthesis positioning mechanism exerts a force in the proximal direction on the self expanding stent to retain the self expanding stent in the cylindrical sleeve.07-15-2010
20100174352Catheter system for angioplasty and stenting with embolic protection - Apparatus and methods are described for performing angioplasty and stenting with embolic protection. A catheter system includes an angioplasty balloon catheter, a balloon-expandable stent, an embolic protection device and a linking device. The catheter system has an undeployed configuration in which the balloon-expandable stent is mounted on the inflatable angioplasty balloon in an uninflated condition, the embolic protection member is positioned distally to the balloon-expandable stent and the angioplasty balloon, and the linking device is mounted on the catheter shaft of the angioplasty balloon catheter and the device shaft of the embolic protection device. The linking device prevents any relative longitudinal motion of the angioplasty balloon catheter and the embolic protection device, which might lead to accidental dislodgement of the balloon-expandable stent.07-08-2010
20100274340DEPLOYMENT DEVICE - A stent graft deployment device (10-28-2010
20100262218Dual-Layer Medical Balloon and Process of Making - A dual-layer dilatation balloon, and a process of making such balloon, which includes an inner layer that includes a plasticizer and a polymer selected from the group consisting of a polyamide, a copolymer thereof, and a combination thereof, and an outer layer that includes an ethylene-propylene rubber. The dual-layer balloon optionally further includes a stent disposed on the balloon. The stent is optionally a drug-eluting stent.10-14-2010
20100262220Expandable Vessel Harness for Treating Vessel Aneurysms - A harness for treating vessel aneurysms is disclosed. The harness applies elastic, compressive reinforcement on the aneurysm to reduce deleterious wall tension and to resist the shape change of the vessel. Rather than imposing a dimension beyond which the aneurysm cannot expand, the harness provides no hard limit over the range of systolic expansion of the vessel. Instead, the harness follows the contour of the vessel throughout systole and continuously exerts gentle resistance to stretch. Also disclosed is a method of delivering the vessel harness to the vessel with minimal invasion.10-14-2010
20080215129Endolumenal Prosthesis with Bioresorbable Portions - The present invention relates to an endolumenal prosthesis comprising a tubular body adapted to convert from a contracted condition to an expanded condition. The tubular body develops along a longitudinal axis and comprises: a plurality of coils and at least one bridge. The coils develop along a substantially circumferential direction and the bridge connects two coils. The coils are realised in a persistent material, while the bridge is realised in a bioabsorbable material.09-04-2008
20100324645DRUG COATED BALLOON CATHETER AND PHARMACOKINETIC PROFILE - A drug delivery balloon is provided comprising a balloon having a surface, and a coating disposed on at least a portion of the balloon surface, the coating including an cytostatic therapeutic agent, an excipient, and a plasticizer. In accordance with the present subject matter, at least 30% of the coating transfers from the balloon surface within two minutes after inflation of the balloon. Alternatively, at least 30% of the coating transfers from the balloon surface within one minute after inflation. The coating results in an effective pharmacokinetic profile of an cytostatic therapeutic agent in a vasculature or target tissue.12-23-2010
20100228333Drug eluting surface covering - A thin-walled sheath is placed over a balloon having an antirestenotic drug placed on the balloon of a balloon dilatation catheter. The sheath protects the drug from dissolution into the blood and allows improved delivery to the lesion site. A rolling action of the sheath prevents the drug from loss due to shearing motion. The sheath can also provide a protected surface for carrying the drug and providing exposure to the lesion site for delivery of the drug. The sheath can also serve as a delivery sheath for providing delivery of a stent via a single catheter introduction for drug delivery and stent delivery.09-09-2010
20100217371Device, System, and Method for Aiding Stent Valve Deployment - A system for aiding implantation of a stented valve includes a delivery device and an outer balloon carried upon the delivery device. Additionally, the system includes a first inner balloon positioned within the outer balloon, a second inner balloon positioned within the outer balloon and adjoining the first inner balloon, and at least a first controller operable to introduce and remove fluid from each of the first inner balloon and second inner balloon.08-26-2010
20100217374Torqueable Balloon Catheter - An illustrative balloon catheter is disclosed. The balloon catheter may include an elongate shaft including a proximal section, a midshaft section, and a distal section. In some embodiments, the midshaft section may include a braid encapsulated in a polymer material. Additionally or alternatively, the midshaft section may include a thermoset polymer material. Additionally, in some cases, the distal section may include a distal outer tubular member and a distal inner tubular member, one or more of which may include a polymer material and, in some cases, a braid. Additionally, some example proximal section may include a metal polymer composite material.08-26-2010
20100217373IMPLANTABLE GRAFT AND METHODS OF MAKING SAME - The present invention relates to an implantable endoluminal graft comprised of a microporous thin-film covering having a plurality of openings and a structural support element underlying and physically attached to the microporous thin-film covering, the microporous thin-film covering having shape memory properties.08-26-2010
20100217370Bioerodible Endoprosthesis - A bioerodible stent, having a composition comprising Fe, Mn, Si and C has desirable mechanical, erosion, and physiological characteristics.08-26-2010
20110112624Avoiding Stress-Induced Martensitic Transformation in Nickel Titanium Alloys Used in Medical Devices - A process for assembling a medical device made from a nickel-titanium alloy for use in a mammalian body while avoiding the formation of stress-induced martensite and a medical device used in combination with a delivery system for deployment into the mammalian body are disclosed. By heating the nickel-titanium alloy of the medical device to a temperature above M05-12-2011
20110130821DEVICE FOR TREATING A BLOOD FLOW CONDUIT - The present invention relates to a device for processing a blood circulation conduit comprising: at least one endoprosthesis deployable between a retracted state and a dilated state; a stent for mounting the endoprosthesis, the stent including a body extending longitudinally between a proximal end region and a distal end region, the stent being fitted for the insertion, positioning, and deployment of the endoprosthesis in the blood circulation conduit, the stent including a releasable means for retaining the endoprosthesis on the stent. The distal end region of the body of the stent is capable of changing the shape thereof between a substantially straight configuration and an inwardly curved configuration, and the device comprises a controlling means for changing the shape of said distal end region between the straight configuration thereof and the inwardly curved configuration thereof.06-02-2011
20100234932SYSTEM AND METHOD FOR DEPLOYING AN ENDOLUMINAL PROSTHESIS AT A SURGICAL SITE - A system for implanting a prosthesis includes a control lumen and a nose cone affixed at a distal end of the control lumen. At least one supporting wire is affixed at one end, is substantially parallel to a major axis of the control lumen and is free at an opposite end, wherein the free end of at least one of the supporting wires is arcuate. Alternatively, a system for implanting a prosthesis includes at least one suture extending from a nose cone affixed to a distal end of a control lumen. The suture extends from the nose cone to a proximal end to a stent graft extending about the control lumen and from the stent graft to a fixed location on the control lumen. The suture is releasable from the stent graft by remote activation, whereby the suture separates from the nose cone to thereby deploy the stent graft.09-16-2010
20100241211VASCULAR GRAFT AND DEPLOYMENT SYSTEM - A vascular graft includes a main portion and a branch portion that is coupled to the main portion by an articulating joint. The vascular graft may be inserted into the thoracic aorta with the branch portion positioned within a branch vessel and the main portion positioned within the thoracic aorta. The graft may be deployed within a deployment apparatus comprising an outer member and an inner member and a pusher. The main graft portion may be housed within the inner member while the branch graft portion is housed within the space between the inner and outer members. The inner member may have a longitudinal groove for allowing the articulating joint to pass by when the branch graft portion is deployed.09-23-2010
20090076584APPARATUS AND METHODS FOR DEPLOYMENT OF MULTIPLE CUSTOM-LENGTH PROSTHESES - A catheter for delivering a prosthesis to a target treatment site comprises an inner shaft and an expansion member coupled to the inner shaft. A plurality of radially expandable prosthetic segments are positionable over the expansion member and they are releasably interlocked with one another while unexpanded. Adjacent pairs of prosthetic segments may decouple from one another upon radial expansion of the distal prosthetic segment in the adjacent pair while the proximal segment in the pair remains at least partially unexpanded. The catheter also includes an outer sheath that is axially movable and positionable at least partially over the prosthetic segments to constrain expansion of a selectable number of segments. A segment mover is coupled to at least one of the prosthetic segments and is axially movable so as to retract one or more of the segments when the one or more prosthetic segments are unexpanded.03-19-2009
20100241210SYSTEM AND METHOD FOR DEPLOYING A PROXIMALLY-FLARING STENT - Disclosed herein are proximally-flaring stents and balloon catheter systems and methods for using the same to restore patency to a side branch and its ostium at a vessel bifurcation, where the side branch can only be approached from the direction of the main artery. The system and methods include a proximally-flaring stent (09-23-2010
20100241212VESSEL TREATMENT DEVICES - A catheter system for treating lesions is provided. The system is suitable for treatment of bifurcation lesions, has a low profile and provides substantially predictable translational and rotational positioning. In one embodiment, the system includes a fixed wire balloon catheter and a partially attached guidewire lumen, wherein the guidewire lumen is attached to the catheter at a crotch point. The location of the crotch point is predetermined so as to provide substantially predictable positioning. Several embodiments of the system are described for various types of lesions and vessel configurations.09-23-2010
20110112622APPARATUS AND METHOD FOR DEPLOYING STENT ACROSS ADJACENT TISSUE LAYERS - Transluminal access system includes a stent delivery catheter having a handle control mechanism. The catheter comprises a number of components for establishing an initial penetration between adjacent body lumens and subsequently implanting a stent or other luminal anchor therebetween. Manipulation of the stent components is achieved using control mechanisms on the handle while the handle is attached to an endoscope which provides access to a first body lumen.05-12-2011
20100222862Stent, Stent Graft and Other Implantable Assemblies - A stent or other implantable medical device is provided with one or more gripping shoulders which are able, when the stent is compressed onto a delivery cannula to frictionally mechanically engage the outer surface of the catheter so as to grip thereon and maintatin the position of the stent relative to the cannula during withdrawal of the covering sheath.09-02-2010
20100222861System for Treating Lesions on a Blood Vessel Bifurcation - The invention relates to a system for treating lesions on a blood vessel bifurcation presenting a first branch (B09-02-2010
20100137966SYSTEM AND METHOD FOR SEQUENTIALLY DEPLOYING TWO OR MORE IMPLANTABLE MEDICAL DEVICES - An intraluminal delivery system for sequentially deploying two or more implantable medical devices includes two or more such devices arranged longitudinally adjacent to each other about an inner catheter. One or more separator bands are slideably disposed about the inner catheter, and each of the bands is positioned between adjacent medical devices. An outer catheter, which is proximal to the medical devices, overlies the inner catheter but does not overlie the medical devices. A tubular sheath overlies the outer catheter, the one or more separator bands, and the medical devices. Relative motion between the tubular sheath and the inner catheter allows the medical devices to be sequentially deployed at one or more treatment sites, and relative motion between the inner catheter and the outer catheter allows a distal tip of the inner catheter to be retracted after deployment of each device.06-03-2010
20090005851ENDOSCOPIC ANEURYSM REPAIR - Provided are a method and apparatus for installing an endograft stent in an aorta, including placing the endograft stent in an aneurysm sac of the aorta with a long limb of the endograft stent in a first iliac artery of the aorta; inserting an angled end of an ipsilateral sheath into the long limb, through the first iliac artery, wherein the ipsilateral sheath houses a first wire, and wherein a first magnet is secured to an end of the first wire and positioned at an opening of the angled end of the ipsilateral sheath; pushing the first magnet out of the opening of the angled end of the ipsilateral sheath, by pushing the first wire through the ipsilateral sheath from an other end of the ipsilateral sheath, such that the first magnet exits the endograft stent through a gate; inserting a short sheath into aneurysm sac through a second iliac artery, wherein the short sheath houses a second wire, and wherein a second magnet is secured to an end of the second wire and positioned at an opening of the short sheath inside the aneurysm sac; and coupling the first magnet to the second magnet such that the gate is aligned with the second iliac artery.01-01-2009
20130218255MEDICAL DEVICE AND SYSTEM HAVING SUCH A DEVICE - A medical device, having a body that is tubular at least in some sections. The body can be transferred from a compressed state into an expanded state and has a circumferential wall having at least one first lattice structure and one second lattice structure. The first lattice structure and the second lattice structure form separate layers of the circumferential wall, which are arranged coaxially one inside the other and connected to each other at least at points in such a way that the first lattice structure and the second lattice structure can be moved relative to each other at least in some sections. A system having such a device is also disclosed.08-22-2013
20120143301Implant, Medical Implant, And Method For Delivery Of A Medical Implant - An intravascular delivery device is disclosed comprising a delivery wire having a proximal and a distal end and an interior lumen extending there between and wherein said distal end comprises a connection interface adapted to matingly interlock with a proximal end portion of a medical implantable device, wherein said delivery device comprises a locking unit arranged to secure said connection interface in a locking position in which said medical implant is pivotably locked before a controlled release.06-07-2012
20100070013Medical Device With Microsphere Drug Delivery System - A system for treating a vascular condition includes a therapeutic agent eluting medical device having a multilayered coating comprising microspheres of variable wall thicknesses. The wall thicknesses and the composition of the microspheres provide a controlled delivery system for one or more therapeutic agents. Another embodiment of the invention includes a method of treating a vascular condition by placing a stent at the treatment site and delivering one or more therapeutic agents from a coating on at least a portion of the stent surface. The coating comprises microspheres of variable wall thicknesses and optionally, an agent that modulates the rate of degradation of the microspheres.03-18-2010
20090264977Family of Electrodes for Use in Performing in Situ Fenestration Using a Plasma RF Catheter - To facilitate the widespread use of the RF plasma catheter to provide in situ fenestration of a main stent-graft, potential side-effects of the fenestration are ameliorated using an electrode from a family of electrodes. Specifically, a family of electrodes is provided so that for a particular application, an appropriate electrode can be selected.10-22-2009
20090259289METHOD OF STENT MOUNTING TO FORM A BALLOON CATHETER HAVING IMPROVED RETENTION OF A DRUG DELIVERY STENT - A method of mounting a drug delivery stent on a balloon of a balloon catheter. The method securely mounts the drug delivery stent on the balloon without damaging the drug delivery layer of the stent. In one embodiment, the method generally comprises positioning a drug delivery stent on a balloon of a balloon catheter, and positioning the balloon with the drug delivery stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold as the mold radially restrains the stent from expanding, to mount the stent on the balloon without damaging the drug delivery layer of the stent.10-15-2009
20090177261Detachment mechanisms for implantable devices - Disclosed herein are detachment mechanisms for vaso-occlusive devices that allow for rapid operator-controlled release of the vaso-occlusive device into the selected site. Also disclosed are vaso-occlusive assemblies comprising these detachment mechanisms and methods of using these detachment mechanisms and vaso-occlusive assemblies.07-09-2009
20110130820MODULAR ENDOGRAFT DEVICES AND ASSOCIATED SYSTEMS AND METHODS - Modular endograft devices and associated systems and methods are disclosed herein. In several embodiments, an endograft system can include a first endograft device and a second endograft device that each include an integrated frame, a cover and a lumen within the cover. Each endograft device further includes a superior portion and an inferior portion. The superior portion can have a convexly curved outer wall and a septal wall. The first and second endograft devices can be configured to extend into a low-profile configuration with a first cross-sectional dimension and a first length and self-expand into an expanded configuration with a second cross-sectional dimension greater than the first cross-sectional dimension and a second length less than the first length. In the expanded configuration, the septal walls can press against each other and form a septum between the lumens of the first and second endograft devices.06-02-2011
20090319020DEVICES, SYSTEMS, AND METHODS FOR PROMOTING ENDOTHELIALIZATION - Devices, systems, and methods for promoting endothelialization and preventing restenosis are disclosed. At least some of the embodiments disclosed herein promote endothelialization and prevent restenosis by reducing local blood flow turbulence. At least some of the embodiments disclosed herein promote endothelialization and prevent restenosis by directing endothelial progenitor cells to a targeted site using magnetic and other means.12-24-2009
20090319019Expandable Tip Delivery System For Endoluminal Prosthesis - An improved delivery system for an implantable medical device includes a retention sheath for an implantable medical device. The retention sheath includes a central lumen extending from a proximal end to a distal end of the retention sheath, and a tapered portion disposed at a distal end of the retention sheath. The tapered portion of the retention sheath includes a first layer made of a low-friction material. The first layer may be movable from a compressed, folded configuration in an initial position, to a substantially uncompressed and unfolded configuration in a deployment position. The retention sheath also includes a second layer made of an expandable material. The second layer is disposed radially outward of and in contact with the first layer, and the second layer is configured to expand in a substantially radially outward direction when the first layer moves from the initial position to the deployment position.12-24-2009
20090149936REINFORCED DELIVERY CATHETER - A catheter for delivering an interventional device to a target site within the body of a patient. The catheter comprises an elongated shaft having a plurality of lumens extending longitudinally therein. The shaft has a proximal portion defining at least two lumens, an intermediate portion having fewer lumens than the proximal portion, and a distal portion configured for carrying the interventional device. The proximal and distal portions each have a greater stiffness than the stiffness of the intermediate portion. A stiffening member is incorporated into the intermediate portion of the shaft. The stiffening member is sized and positioned along the shaft in a manner such that the stiffness of the intermediate portion is increased relative to the stiffness of the proximal portion and the distal portion.06-11-2009
20090112303Devices, systems, and methods for endovascular staple and/or prosthesis delivery and implantation - Devices, systems, and methods for implanting expandable prostheses in the body lumens rely on stapling or anchoring the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable, and may include a single lumen or more than one lumen. After initial placement, a stapling system is introduced within the expanded prosthesis to deploy a plurality of fasteners to at least one prosthesis end. The stapling system may apply a force to the prosthesis to modify the shape of the prosthesis to conform to the shape of the vessel wall. The stapling system can be deflected in one or more distinct steerable segments. A lumen extension or lumens may be coupled to the prosthesis to extend the reach of the prosthesis within the implantation site. Fasteners may also be applied to the lumen extensions.04-30-2009
20090112302Devices, systems, and methods for endovascular staple and/or prosthesis delivery and implantation - Devices, systems, and methods for implanting expandable prostheses in the body lumens rely on stapling or anchoring the prostheses with separately introduced fasteners. The prostheses may be self-expanding or balloon expandable, and may include a single lumen or more than one lumen. After initial placement, a stapling system is introduced within the expanded prosthesis to deploy a plurality of fasteners to at least one prosthesis end. The stapling system may apply a force to the prosthesis to modify the shape of the prosthesis to conform to the shape of the vessel wall. The stapling system can be deflected in one or more distinct steerable segments. A lumen extension or lumens may be coupled to the prosthesis to extend the reach of the prosthesis within the implantation site. Fasteners may also be applied to the lumen extensions.04-30-2009
20080269868STENT DELIVERY CATHETER SYSTEM AND METHOD OF IMPLANTING A SELF-EXPANDING STENT WITH EMBOLIC PROTECTION - A catheter system and method for implanting an i such as a stent at a treatment site in a patient's body lumen. The catheter provides a complete system for stent delivery, dilatation, and delivery and/or recovery of an expandable device, such as an embolic protection device, adjacent to the treatment site in the body lumen.10-30-2008
20090105803STENT GRIP AND SYSTEMS FOR USE THEREWITH - A method and apparatus for reducing the longitudinal aspect of the catheter to stent force having at least one grip member for use with a stent delivery system. The grip engages a stent in the unexpanded state prior to delivery of the stent by retracting a stent retaining sheath. The grip has a body region having an outer diameter, a first end and a second end. The outer diameter of the first end is greater than the outer diameter of the second end. The grip is at least partially constructed from a polymeric material.04-23-2009
20090105802STENT DELIVERY CATHETER - A self-expanding stent delivery assembly includes a shaft having a proximal end, a distal end, a distal region, a lumen, and a longitudinal axis. A retractable sheath having an outer surface, a proximal end and a distal end is co-axially disposed around the shaft distal region. A stent is disposed co-axially between the shaft and the retractable sheath. A tubular tapered tip is affixed to the retractable sheath distal end. The tubular tapered tip has an elongate region predisposed to fracturing. Methods of delivering a self-expanding stent are also described.04-23-2009
20090105801Indwelling catheter arrangement - A stent graft delivery device (04-23-2009
20090105799RENAL ASSESSMENT SYSTEMS AND METHODS - Techniques for assessing a physiological profile of a patient include advancing a catheter shaft of a bifurcated renal catheter system into an aorta of the patient, deploying branches of the bifurcated renal catheter system into the renal arteries of the patient, detecting a renal arterial physiological parameter with a sensing mechanism, and assessing the physiological profile of the patient based on the physiological parameter. Related techniques include modifying or initiating pharmacological or surgical treatments for the patient based on the assessment.04-23-2009
20100312322Medical Balloon Incorporating Electroactive Polymer and Methods of Making and Using the Same - An expandable medical balloon having at least one static state, at least one expanded state, and at least one deflated state, the expandable medical balloon including at least one active region, the at least one active region including electroactive polymer.12-09-2010
20100305678Thrombectomy and Balloon Angioplasty/Stenting Device - A thrombectomy and balloon angioplasty catheter for the removal of blood clots and debris from a blood vessel and/or for the dilation of a narrowed or completely closed segment in the blood vessel is disclosed. The catheter includes a shaft having a proximal end and a distal end, an angioplasty balloon mounted to the shaft adjacent the distal end of the shaft, and an occlusion balloon mounted to the shaft at a location proximally spaced from the angioplasty balloon. A guide wire lumen is arranged on the shaft. The guide wire lumen extends from a first position adjacent the distal end of the shaft to a second position proximal the angioplasty balloon and distal the proximal end of the shaft. The shaft includes an angioplasty balloon inflation lumen in fluid communication with the proximal end of the shaft and an interior space of the angioplasty balloon, an occlusion balloon inflation lumen in fluid communication with the proximal end of the shaft and an interior space of the occlusion balloon, and a thrombectomy lumen in fluid communication with the proximal end of the shaft and a thrombectomy suction port located between the angioplasty balloon and the occlusion balloon.12-02-2010
20100305680DEVICE FOR PERCUTANEOUS VASCULAR INTERVENTION - A device for percutaneous vascular intervention, particularly for performing a stent implantation, having a guide catheter 12-02-2010
20090069878BIFURCATION POST-DILATATION BALLOON AND METHODS - A catheter assembly includes a balloon member and a balloon restricting arrangement. The balloon member includes a proximal portion, a distal portion and a circumferential bulge portion. The circumferential bulge portion extends around a circumference of the balloon member and is positioned at a location between the proximal and distal portions of the balloon member. The balloon restricting arrangement includes a proximal portion extending around the proximal portion of the balloon member and a distal portion extending around the distal portion of the balloon member to restrict an inflated size of the proximal and distal portions of the balloon member. The proximal and distal portions of the balloon restricting arrangement are spaced apart axially, and the circumferential bulge portion extends radially outward therebetween. The circumferential bulge portion inflates to a maximum inflated dimension that is greater than an inflated dimension of the proximal and distal portions of the balloon restricting arrangement.03-12-2009
20130138197STERILIZATION METHODS AND APPARATUS - Sterilization methods for implantable prostheses are described, where a polymeric stent may be sterilized, e.g., via ETO sterilization, at a temperature below a glass transition temperature of the stent. A separate delivery catheter may be sterilized separately and the stent and delivery catheter may then be combined in an aseptic, or semi-aseptic environment and sterilized as an assembled system such that the requirements for sterilizing the system are relatively lower. Additionally and/or alternatively, valve and filter assemblies may be used with an optional mandrel assembly for maintaining sterility of the internal components of a catheter system.05-30-2013
20130138198DEVICE FOR INSERTING AN IMPLANT - The invention relates to a device comprising an endovascular implant (05-30-2013
20130138199PARAPLEGIA PREVENTION STENT GRAFT - A stent graft for deployment into the aorta of a patient has a tubular body with a proximal portion of a selected diameter; preferably a reduced diameter portion, distal of the proximal portion, having a diameter less than the selected diameter; a tapered portion, extending between the proximal portion and the reduced diameter portion; and optionally a distal portion, distal of the reduced diameter portion. At least three, preferably four or five, low profile side arms are provided, preferably in the reduced diameter portion and/or the tapered portion, for connection of an arm extension to an aortic branch vessel. All but one of the side arms are to be connected at the physician's choice, depending on the anatomy of the patient. One side arm is to provide temporary perfusion to external of the stent graft after deployment of the stent graft into the aorta, and is subsequently blocked.05-30-2013
20110029060LAMELLAR SHAPED LAYERS IN MEDICAL DEVICES - The present invention refers to medical devices. Particularly it relates to stent devices and balloon catheter devices. In the most particular aspect of the invention it relates to structures with at least two different lamellar sections used in such a medical device, especially in a balloon on a balloon catheter device carrying a stent comprising at least one layer with at least two lamellar sections different by their shore hardness and its use in a variety of medical procedures to treat medical conditions in animal and human patients.02-03-2011
20100331950SYSTEM AND METHOD FOR DELIVERING A STENT TO A SELECTED POSITION WITHIN A LUMEN - Method for delivering a stent coupled with a catheter, to a selected position within a lumen of the body of a patient, the method includes the procedures of: selecting a single image of the lumen, among a plurality of images of an image sequence of the lumen, receiving a position input associated with the selected image and respective of the selected position, the position input is defined in a coordinate system respective of a medical positioning system (MPS), detecting the current position of the stent in the coordinate system, according to position data acquired by an MPS sensor attached to the catheter in the vicinity of the stent, superimposing on at least one maneuvering associated image of the lumen, at least one stent representation respective of the current position, and at least one marking representation respective of the position input, according to a real-time organ timing signal of an inspected organ of the body, maneuvering the catheter through the lumen, toward the selected position, according to the current position relative to the position input, and producing an output when the current position substantially matches the selected position.12-30-2010
20100331949STENTS, DEVICES FOR USE WITH STENTS AND METHODS RELATING THERETO - A removable stent (12-30-2010
20100331948IMPLANT DELIVERY APPARATUS AND METHODS WITH ELECTROLYTIC RELEASE - Implant release apparatus includes a connector connecting a lead having an electrolytically erodible portion and a restraint that restrains the implant. In one embodiment, the connector can include or comprise a nonconductive member.12-30-2010
20110009943DELIVERY SYSTEM WITH MEDICAL DEVICE RELEASE BY EVERTABLE SLEEVE - A medical device delivery system has a tubular member defining a passageway and an inner member slideably disposed within the passageway. An expandable intraluminal medical device is disposed on a chamber of the inner member, and an evertable sleeve is attached to the inner member proximal to the chamber and to an inner surface of the tubular member. Relative movement between the tubular and outer members moves the evertable sleeve from a first position substantially overlying the expandable intraluminal medical device to a second position substantially proximal to the chamber.01-13-2011
20100331955ROLLING MEMBRANE STENT DELIVERY SYSTEM - A medical device delivery system, having a rolling retractable sheath covering a medical device mounting region on the system is disclosed. The rolling retractable sheath comprises an inner wall and an outer wall and may be formed of one or more materials, optionally porous. Optionally, a lubricant maybe applied selectively to the interior and exterior walls of the stent.12-30-2010
20110009945METHOD FOR DEPLOYING A STENT DELIVERY SYSTEM HAVING A BLOWMOLDED HOLDER - A method for deploying a stent delivery system having a blowmolded holder is provided. The stent is configured to expand from a first diameter to a second diameter. The holder is blowmolded to an inner surface of the compressed state. The holder contacts the inner surface and at least portions of side surfaces of the stent, and the holder and the stent have an interference fit therebetween. The deployment method includes delivering the compressed stent placed on the blowmolded holder and the holder into a predetermined deployment side. The deployment method further includes releasing the stent from interference with the holder and expanding the stent from the compressed stent to the expanded stent.01-13-2011
20110009942BALLOON CATHETER - Balloon catheters and stent delivery systems including bifurcated stent delivery systems are disclosed. An example bifurcated stent delivery system may include an elongate shaft including a proximal section, a midshaft section, and a distal section. The proximal section may include a tubular member having a plurality of slots formed therein. The slots may be arranged in one or more sections having differing slot densities. The midshaft section may include a guidewire port in fluid communication with a guidewire lumen formed in the shaft. A main branch balloon may be coupled to the shaft. A side branch balloon may be disposed adjacent to the main branch balloon. A stent may be disposed on the main branch balloon and on the side branch balloon.01-13-2011
20110009944INSTRUMENTED RETRIEVABLE IMPLANTABLE DEVICE - Instrumented retrievable implantable device, including an expandable section, for placement inside a body lumen, preferably in a blood vessel. The device includes a joined sensor for monitoring one or more physiological parameter for diagnostic or therapeutic purposes. Data access is assured by a passive RF transponder, in communication with an external readout unit or an implanted device, providing as well to the energy supply of the sensor. The shape of the device allows repositioning and retrieval by micro-invasive methods, by means of a link section coupleable with a grabbing device mounted on a catheter.01-13-2011
20110034988Stent Island Removal - A tool, system, and method for removing islands from a stent is disclosed. The tool includes a tube with at least one exit hole in communication with the interior of the tube, and the tube being connected to a pressurized fluid source. A stent island is located over the exit hole and is removed by the force of the exiting fluid from the exit hole.02-10-2011
20110034989RAPID-EXCHANGE BALLOON CATHETER SHAFT AND METHOD - A balloon catheter or stent delivery system for medical treatment of a patient has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a rapid-exchange configuration, and a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near a proximal leg of the balloon. An inner tubular body defines a guidewire lumen extending from a distal guidewire port at the catheter distal end to a proximal port located at a position between the balloon and the hub. A distal leg of the balloon is directly or indirectly affixed to the inner body, and a proximal leg of the balloon is affixed to the distal end of the outer body. The hypotube has an aperture for accepting the inner body proximal end, and a circumferential cut pattern. The cut pattern adds flexibility, and may extend from the hypotube distal end to a position proximal of the proximal guidewire port. The cut pattern may have any desired shape, including a spiral, a helical undulating path, or an overlapping serpentine path with inflection points, for example. The hypotube has a fluid-tight covering such as a heat-shrink polymer, so the outer body supports pressure of an inflation medium. The proximal guidewire port may be positioned on or between the individual portions of the cut pattern, or at a position beyond the cut pattern.02-10-2011
20110040365CATHETER - A system comprising a catheter having an expandable element, which when expanded, has an annular shape surrounding a passageway. The expandable element in the expanded state is rollable along at least a portion of the shaft of the catheter without slipping. The system may be used for delivering an object to a site in the body, retrieving an object from a body, removing debris and/or other particulate matter from a blood vessel, and distending and/or expanding a pathologically-involved region of a blood vessel wall.02-17-2011
20090177263ENFORCED GUIDING CATHETER - A guiding catheter for endovascular recanalization of occluded coronary arteries includes a polymeric tube having a main channel, for introduction of a dilatation balloon catheter or a stent along the guide. The polymeric tube has an auxiliary channel for providing overpressure to an elastic balloon(s) that is located on a distal end of the catheter. The elastic balloon(s) is in communication with the auxiliary channel and has at least one fixating protrusion on its outer surface. The catheter can have between 2 and 4 elastic balloons at its distal end, each elastic balloon having at least one fixating protrusion on its corresponding outer surface. The fixating protrusion is preferably in a form of a hemisphere, or is elongated in a direction of the longitudinal axis of the catheter. A height of the fixating protrusion is between 0.01 and 1 mm above the surface of the elastic balloon. A proximal end of the catheter includes a Y-shaped adapter for introduction of radiopaque agent or instruments into a first input of the Y-shaped adapter, and a second input of the Y-shaped adapter is connectable to a high pressure syringe capable of inflating the balloon(s).07-09-2009
20090062898Catheter system for bifurcated coronary vessel - Devices and methods for treating bifurcated body vessels, including stenosed, bifurcated coronary arteries. Methods can include advancing a guide catheter to the stenosed bifurcated region, advancing first and second guide wires through the guide catheter into separate vessel regions past the bifurcation, and then withdrawing the guide catheter. The method proceeds by advancing a balloon catheter having a bifurcated stent mounted to a Y-shaped distal balloon region over the guide wires, and positioning the bifurcated stent proximal of and distal to the bifurcation. Inflating the balloons dilates the stenosed region and expands the bifurcated stent. Kits provided by the present invention can include two guide wires, a guide catheter, a balloon catheter having a Y-shaped distal balloon region, and a bifurcated stent configured to be carried over the distal balloon region.03-05-2009
20110213452STENT - A bioabsorable stent is disclosed. The stent is made of a bioabsorable material and has an elongated body having a proximate end, a distal end, and at least one open channel formed on the exterior surface of the elongated body to provide fluid communication between the proximal end and the distal end. Also disclosed is a bioabsorable stent having an elongated center rod having a proximate end and a distal end and a plurality of leaflets extending outward from the center rod and forming channels between two neighboring leaflets to provide fluid communication between the proximal end and the distal end.09-01-2011
20110213449APPARATUS FOR VESSEL ACCESS CLOSURE - Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.09-01-2011
20110213451MEDICAL DEVICE SHIELD AND METHODS FOR DELIVERING A MEDICAL DEVICE - Device shields for packaging and protecting medical devices during storage and deployment. A device shield includes a housing configured to maintain a medical device and at least a portion of a medical device delivery apparatus within the housing, and a limit element having a first constraining position and a second open position.09-01-2011
20110137397PROSTHETIC VALVE FOR REPLACING MITRAL VALVE - Embodiments of prosthetic valves for implantation within a native mitral valve are provided. A preferred embodiment of a prosthetic valve includes a radially compressible main body and a one-way valve portion. The prosthetic valve further comprises at least one ventricular anchor coupled to the main body and disposed outside of the main body. A space is provided between an outer surface of the main body and the ventricular anchor for receiving a native mitral valve leaflet. The prosthetic valve preferably includes an atrial sealing member adapted for placement above the annulus of the mitral valve. Methods and devices for delivering and implanting the prosthetic valve are also described.06-09-2011
20120245671VASCULAR STENT WITH IMPROVED VESSEL WALL APPOSITION - A medical device is provided. The medical device includes a vessel-engaging member attached to a distal end of a delivery wire via a connection mechanism. The vessel-engaging member includes a plurality of rows and a plurality of bridges positioned between each adjacent row, each of the bridges connecting a vertex of a first row with a corresponding vertex of a second row. The vessel-engaging member further includes first and second tapered sections coupled to the connection mechanism, each of the tapered sections projecting from a proximal row and tapering in a direction from the proximal row toward the connection mechanism, each of the tapered sections having a length measured along a longitudinal axis, wherein the length of the first tapered section is less than the length of the second tapered section.09-27-2012
20110251666Delivery System Ejection Component and Method - A stent or stent-graft delivery system includes a stent ejection component. The stent ejection component includes a body and an ejection collar. The ejection collar extends from the body in the proximal direction. The ejection collar assists in automatically ejecting a proximal end of a stent when the tapered tip is moved in the distal direction to deploy the stent. A stent or stent-graft delivery system may also include a retain-sleeve landing component. The retaining-sleeve landing component includes a body and a landing collar. The landing collar extends from the body in a distal direction. The landing collar automatically captures a tapered tip of the delivery system when the tapered tip is moved in a distal direction to deploy a stent contained in the delivery system. Upon capture of the tapered tip, the stent ejection component with the tapered tip attached has an atraumatic profile.10-13-2011
20090048654Deployment System for Soft Stents - A stent delivery system and a method for delivering a stent are provided. The stent delivery system includes an outer sheath having a proximal portion, a distal portion and a first lumen extending at least partially through the sheath. The system further includes an inner shaft slidably received within the first lumen and extending at least partially through the sheath. A tubular non-expandable stent is slidably positionable within the first lumen, disposed distal to the inner shaft and operably contacts a pushing surface on the inner shaft. The inner shaft and the stent are slidable relative to the outer sheath, the outer sheath providing sufficient rigidity to the stent for delivery of the stent to a delivery site.02-19-2009
20090048653ENDOPROSTHESIS HOLDER - An endoprosthesis holder includes a proximal connector structure having an outer surface. A distal connector structure has an outer surface. An intermediate connector structure is connected to the proximal and distal connector structures such that the intermediate connector structure is between the proximal and distal connector structures. The intermediate connector structure includes one or more intermediate transverse structures and one or more axial structures. The one or more intermediate transverse structures are connected to one another and to the proximal and distal connector structures by the one or more axial structures. The intermediate connector structure has an outer surface. An outward protrusion is connected to one or more of the outer surfaces of the proximal connector structure or distal connector structure or intermediate connector structure.02-19-2009
20090326633CONTROLLED RELEASE ENDOPROSTHETIC DEVICE - The invention relates to improved drug-delivery endoprosthetic device for insertion at a vascular site via catheter placement at the site, comprising: 12-31-2009
20090312827BALLOON CATHETER WITH CENTRALIZED VENT HOLE - A system and method providing a catheter assembly for engaging a stenosis. The assembly includes a catheter defining a first lumen and a second lumen spaced apart and disposed about a longitudinal axis. The catheter includes an opening in communication with the first lumen to define a flow path having an angle incident to the longitudinal axis. A first marker; and a second marker disposed on the catheter are spaced equidistantly from the opening. The assembly includes a balloon having a first end and a second end each sealed about the catheter and equidistantly from the opening to define a holding volume therebetween. The opening is disposed within the holding volume thereby placing the first lumen in sealed fluid communication with the holding volume. In a preferred embodiment, the catheter assembly includes a stent disposed about the balloon, and the balloon is configured to engage the stent with a stenosis.12-17-2009
20090312831CATHETER DELIVERY DEVICE - A catheter delivery device for a self-expanding stent is described. The delivery device includes a distal catheter component and a distal sheath that releases the stent by moving proximally relative to the distal catheter component and the stent. A proximal catheter shaft including a tube and a pull wire within a lumen of the tube may be provided, the pull wire being attached to the distal sheath such that pulling the pull wire proximally relative to the tube pulls the distal sheath proximally to release the stent progressively. A casing tube may be provided to surround the catheter shaft, the casing tube having a distal end that receives telescopically a proximal end of the distal sheath.12-17-2009
20090312829STENT DELIVERY SYSTEM AND STENT DELIVERY METHOD - A stent delivery system includes a tubular stent which is retained in a body cavity of a living body; a pusher tube, whose distal end contacts with a proximal end of the stent, which pushes and moves the stent to a distal end side; a filament which connects the stent with the pusher tube by the proximal end side of the filament being engaged with the pusher tube and by the distal end side of the filament stretching to the stent side so as to penetrate the peripheral wall of the stent; an engaging member which is engaged with a distal end portion of the filament penetrating the peripheral wall of the stent, and which keeps the connecting condition between the stent and the pusher tube by the filament; and a pulling member which pulls a distal end side of the filament into a proximal end side of the pusher tube when the engagement between the engaging member and the filament is released and the connection between the stent and the pusher tube is released.12-17-2009
20090312828Edge Protection via Tapered Balloon Wrap - A stent deployment device is provided with a tapered balloon wrap to protect the edge of a crimped stent during stent deployment. The balloon is wrapped unevenly so that the distal end is looser and has a wider circumference than the proximal end of the balloon. With a stent crimped upon such a balloon, the distal balloon end billows out and covers the distal edge of the stent. This shielding billow prevents the stent edge from becoming damaged or causing harm if the stent is distally impacted while traversing body vessels on the way to the deployment site.12-17-2009
20090312830Balloon arc profile control - The present invention is directed to a delivery system including a stent protector to protect an end of the stent and/or stent body for delivery of the stent to an intended fixation site or treatment site within a body lumen. More specifically, the present invention is directed to balloon catheter which protects the distal end, proximal end and/or body of a stent during delivery to the deployment site and/or shipping of a preloaded system.12-17-2009
20100010612Lumen diameter and stent apposition sensing - A stent balloon is provided with two conductive rings, created by a thin metallized coating deposited directly on the balloon, adjacent to the ends of the stent. The impedance between those rings and the body of the patient is measured at different AC frequencies. As the balloon approaches the vessel wall the impedance increases rapidly. Once the balloon forms full contact with vessel wall the impedance increases slowly. The changing impedance provides a guide for optimal apposition of the stent.01-14-2010
20120245670STENT DELIVERY SYSTEM AND METHOD USING THE SAME - Disclosed herein is a stent delivery system which includes: a hollow shaft; first and second expandable balloons arranged around of the distal end of the shaft; and a stent which is arranged around the second balloon such that it expands as the second balloon expands; the first balloon having drug release means for releasing a drug at least to prevent the proliferation of endothelial cells, the stent being a bare metal stent to be indwelled at a target position as lesion of stenosis or occlusion in the lumen of a living body.09-27-2012
20100063573DELIVERY SYSTEM FOR ENDOLUMINAL IMPLANT - A delivery system for delivering an endoluminal implant to a distal deployment location inside a body lumen from a proximal access location outside the lumen. The system comprises the implant, a catheter, and a slidable sheath having an advanced position in which the sheath covers the implant and a retracted position in which the implant is exposed. The catheter comprises a stabilizer having a distal end adjacent the implant proximal end and/or a catheter tip attached to a central core slideably disposed relative to the implant and having a proximal end adjacent the implant distal end. The catheter tip proximal end and/or the stabilizer distal end comprises a docking section adapted to releasably engage a portion of the implant. Each docking section has an engagement geometry comprising a flared engagement surface that extends inside a short axial length of the implant or a pocket having a bottleneck geometry.03-11-2010
20100063572Composite detachment mechanisms - Described herein are composite detachment mechanisms for implantable devices and assemblies comprising these devices. Also provided are methods of using the detachment mechanisms and assemblies.03-11-2010
20110178589APPARATUS AND METHODS FOR DELIVERY OF BRAIDED PROSTHESES - Blood vessels and other body lumens are expanded using an evertible braided prosthesis. The braided prosthesis is delivered to the blood vessel in a radially collapsed configuration. A leading edge of the braided prosthesis is then everted so that it expands as it is advanced through the blood vessel. Optionally, the prosthesis can be provided with a biologically active substance in order to inhibit hyperplasia or have other desired biological effects.07-21-2011
20110178588APPARATUS AND METHODS FOR IMPROVED STENT DEPLOYMENT - Apparatus for facilitating deployment of a an implantable medical device includes a control member (07-21-2011
20100057182Method and device for loading a stent applicator - A method and a device for loading a stent applicator that makes possible the loading of the stent applicator with simple handling and without risk of injury. The method is characterized by the steps of Exerting a lateral pressure on the stent to reduce its diameter, Inserting the compressed stent into a loading device that includes a cylinder-piston arrangement, At least partially inserting the loading device into the stent applicator, and Loading the stent applicator with the stent by pushing the components—cylinder and piston—of the loading device relative to one another.03-04-2010
20100057183MEDICAL APPLIANCE OPTICAL DELIVERY AND DEPLOYMENT APPARATUS AND METHOD - Embodiments of the present invention are directed to devices for allowing a user to deploy a stent in an anatomical lumen of a patient. For example, one embodiment is directed to a device including a longitudinally extending inner tubular member and a longitudinally extending outer tubular member that are longitudinally and axially displaceable relative to one another. The outer tubular member includes at least one longitudinally extending channel formed between the exterior and interior diameter of the outer tubular member. In addition, the device includes a handle configured to displace the outer tubular member and inner tubular member relative to each other in response to user intervention and a stop configured to coaxially engage the handle to form a safety mechanism. Displaceability of the outer tubular member and inner tubular member relative to each other is limited by the safety mechanism to a predetermined threshold.03-04-2010
20100057181BLOOD VESSEL PROSTHESIS AND DELIVERY APPARATUS - A prosthesis delivery apparatus, a method of delivering a prosthesis, and a prosthesis are provided. The prosthesis (03-04-2010
20100070017INSERTION SYSTEM FOR DEPLOYMENT OF CATHETER-BASED STENT DEVICES - An insertion system for release of a self-expanding stent device 03-18-2010
20100070016STENT DEVICE ADHESIVELY BONDED TO A STENT DEVICE PUSHER - A stent device delivery system, comprising a stent device pusher, a radially expandable stent device and an outer sheath. A tacky material provides a tackiness between the stent device pusher and an inner surface of the stent device. The tacky material is distributed along the length of the stent device. The tacky material serves to resist axial movement of the stent device relative to the stent device pusher as the outer sheath slides axially over the stent device, yet allows the stent device to peel from the tacky material and expand to a radially expanded state as the outer sheath slides axially over the stent device to release the stent device. The tacky material may be compressible such that the stent device is embedded in the compressible tacky material.03-18-2010
20100070014DOUBLE-BALLOON DELIVERY SYSTEM FOR AN IMPLANTABLE ECCENTRIC STENT - A system for delivery of a stent dilatable by means of a balloon, including a multilumen polymeric catheter having at least two balloons at the input end, where the distal balloon can expand an eccentric stent mounted on it, and the proximal balloon of smaller diameter has, at least, two radiopaque labels (markers) and has a capability of accurate orientation of the stent in an artery lumen.03-18-2010
20110152994IMPLANTABLE DEVICE - An intracranial stent formed from Nitinol has variable flexibility. The stent (06-23-2011
20110251665Delivery System Ejection Component and Method - A stent or stent-graft delivery system includes a stent ejection component. The stent ejection component includes a body and an ejection collar. The ejection collar extends from the body in the proximal direction. The ejection collar assists in automatically ejecting a proximal end of a stent when the tapered tip is moved in the distal direction to deploy the stent. A stent or stent-graft delivery system may also include a retain-sleeve landing component. The retaining-sleeve landing component includes a body and a landing collar. The landing collar extends from the body in a distal direction. The landing collar automatically captures a tapered tip of the delivery system when the tapered tip is moved in a distal direction to deploy a stent contained in the delivery system. Upon capture of the tapered tip, the stent ejection component with the tapered tip attached has an atraumatic profile.10-13-2011
20110251664Short Legged Bifurcated Stent Graft Distal Capture Element and Method - A bifurcated stent graft section includes a plurality of loops formed from a serpentine support wire forming a stent at a distal end of one of the short legs of the bifurcated stent graft section. A delivery system includes a coil having a wire configured to pass through the loops and prevent disengagement of the loops from the delivery system without relative rotational movement between the coil and the loops. In a method for delivery the bifurcated stent graft section, the bifurcated stent graft section is advanced to the treatment site, a sheath is retracted to deploy the proximal end of the bifurcated stent graft section while the coil retains the distal end of one of the short legs of the bifurcated stent graft section. A second guidewire is threaded into the short leg of the bifurcated stent graft section which is been stabilized by being held by the coil of the delivery system. An extension leg graft is delivered over the second guidewire and deployed to be coupled to the other short leg of the bifurcated stent graft section while the coil retains the loops. The coil is rotated to release the loops and allow the bifurcated stent graft section to fully deploy. A second extension leg graft is delivered and coupled to the other leg of the bifurcated stent graft section to complete the construction of a bifurcated stent graft in situ.10-13-2011
20110098798Angioplasty Balloon with Therapeutic/Aspiration Channel - An angioplasty balloon catheter with an added channel for delivering medication or removing body fluids distal to the site of angioplasty is disclosed. The balloons are especially useful in the treatment of occlusions in saphenous vein grafts, the coronary and carotid arteries, arteries arising from the aorta and branches thereof and in veins flowing to the heart or their tributaries and sub tributaries thereof.04-28-2011
20080269865Custom Length Stent Apparatus - Apparatus and methods for delivering prosthetic segments to a body lumen include an elongated flexible member having both proximal and distal ends along with a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end. Additionally, the apparatus has a sheath slidably disposed over at least a portion of the prosthetic segments and an outer shaft slidably disposed over at least a portion of the sheath. A separator is disposed on the outer shaft and is biased into engagement with at least one prosthetic segment so that the outer shaft may be retracted to separate a proximal group of prosthetic segments from a distal group of prosthetic segments which are to be deployed into the body lumen. The sheath is positionable between the separator and the prosthetic segments to selectively disengage the separator from the prosthetic segments.10-30-2008
20110082534Ultrasound-enhanced stenosis therapy - Apparatus and methods are disclosed for vascular stenosis therapy, including enhancing permeability of the vessel wall using ultrasound energy and delivering a therapeutic agent into the arterial wall. Ultrasound energy may also be delivered using transcutaneous techniques and endovascular methods. In some embodiments, ultrasound energy and therapeutic agent application may be combined with angioplasty techniques and with blood flow protection devices to prevent dissipation of the therapeutic agent from the treatment site.04-07-2011
20100125326Braided Stent With a Shortenable Tether - The braided stent with a shortenable tether of the present invention includes a stent for use in a vessel having a vessel wall including a braided stent framework having a first framework end and a second framework end; and a plurality of shortenable tethers, each of the plurality of shortenable tethers having a first tether end and a second tether end, the plurality of shortenable tethers being disposed along a length of the braided stent framework and fixed to the braided stent framework at the first tether end and the second tether end. The plurality of shortenable tethers shorten in response to vessel conditions to urge the first framework end and the second framework end toward each other when the stent is deployed in the vessel to urge a circumference of the braided stent framework toward the vessel wall.05-20-2010
20110152996APPARATUS AND METHODS FOR DELIVERY OF MULTIPLE DISTRIBUTED STENTS - Delivery catheters and systems are adapted for delivering multiple discreet prostheses in body lumens. An exemplary delivery catheter comprises a sheath, a pusher for moving the prostheses relative to the sheath, and a valve member for selectively retaining the prostheses in the sheath. For balloon expandable stents, an elongated shaft and an expandable member are slidably disposed in the sheath, and the prostheses are positionable on the expandable member for deployment in the body lumen. The valve member allows a selected number of prostheses to be deployed from the sheath while retaining other prostheses within the sheath.06-23-2011
20110071613INTEGRATED STENT RETRIEVAL LOOP ADAPTED FOR SNARE REMOVAL AND/OR OPTIMIZED PURSE STRINGING - The present invention includes a braided stent and method of making the same. The braided stent has an integral retrieval and/or repositioning member. The stent includes a first open end, a second open end and a tubular body therebetween. The retrieval and/or repositioning member extends from and is interbraided into the braided tubular body. The retrieval and/or repositioning member includes an elongated portion extending from the first open end and a second section interlooping circumferentially about the first open end such that force exerted on the elongated portion causes radially contraction of the stent end and stent body.03-24-2011
20120035700STENT DELIVERY SYSTEM - A drainage stent delivery system including an elongate shaft of a medial device, a drainage catheter or stent, and a retention mechanism for selectively retaining the drainage stent on the elongate shaft. The tubular stent is positioned on and surrounding the elongate shaft. The elongate shaft includes a distal tip portion which is deflectable from a first position to a second position, the distal tip portion of the elongate shaft being biased toward the first position. Deflecting the distal tip portion of the elongate shaft from the first position to the second position moves the distal tip portion toward the central longitudinal axis of the tubular stent to allow the stent to be decoupled from the elongate shaft.02-09-2012
20110077731MULTIPLE STENT DELIVERY SYSTEM - A stent delivery system having multiple stents in a single delivery catheter, configured for delivering and deploying at least some of the stents in a patient's anatomy. A reversibly collapsible stent stop secured to the inner tubular member abuts a proximal end of a first distal stent prior to deployment of the first stent, and is configured to radially collapse as the inner tubular member is proximally withdrawn into the outer tubular member through the second collapsed stent, and radially self expand along at least a section thereof at a location proximally adjacent to a proximal end of a second collapsed stent prior to deployment of the second stent after deployment of the first stent. One or two stent retainer are attached to the shaft of a stent delivery catheter to prevent longitudinal shifting of the stent along the longitudinal axis of the catheter.03-31-2011
20090018636Methods and apparatus for rapid endovascular vessel occlusion and blood flow interruption - An occluding device including expandable scaffold and a flow-limiting member is described. In some embodiments the scaffold is an expandable or self-expanding stent deliverable over a guide wire. The flow-limiting member can include a valve that can be closed following deployment. On deployment the stent and flow-limiting member can engage an inner surface of a body cavity lumen, blocking flow of material. In some embodiments the body cavity is a blood vessel, and the device can be used to block blood flow. In some embodiments the device includes bioactive agents.01-15-2009
20090018633PROTECTOR FOR AN INSERTABLE OR IMPLANTABLE MEDICAL DEVICE - A protector for a medical device including a tubular member, the tubular member including a polymer matrix material and a scavenger for moisture, oxygen or a combination thereof dispersed in the polymer matrix material.01-15-2009
20120123514METHOD AND DEVICE FOR TREATMENT OF ARRHYTHMIAS AND OTHER MALADIES - Devices and methods are described for treating maladies such as atrial fibrillation. The devices and methods, in some implementations, include two rings separated by a helical winding. The rings and at least one helical winding provide mechanical pressure against an adjacent tissue, e.g., the tissue of a vessel, and the pressure works to inhibit the propagation of electrical signals along the vessel.05-17-2012
20120123513SUTURELESS VASCULAR ANASTOMOSIS CONNECTION - Techniques for sutureless vascular anastomosis are described, including an incision seal including a base configured to partially house an outer surface of a main vessel, the base being formed using a material that is configured to be penetrated by a barb disposed on a connector the main vessel being secured to the base when the base is at least partially pierced by the barb, an upper lumen configured to guide a graft vessel, and a housing opening configured to receive the graft vessel.05-17-2012
20120123512SUTURELESS VASCULAR ANASTOMOSIS CONNECTION - Techniques for sutureless vascular anastomosis are described, including an incision seal including a base configured to partially house an outer surface of a main vessel, the base being formed using a material that is configured to be penetrated by a barb disposed on a connector the main vessel being secured to the base when the base is at least partially pierced by the barb, an upper lumen configured to guide a graft vessel, and a housing opening configured to receive the graft vessel.05-17-2012
20120123510METHOD OF POSITIONING A TUBULAR ELEMENT IN A BLOOD VESSEL OF A PERSON - A method of positioning a tubular element inside a main blood vessel of a person. The tubular element has a main tube with one or more side openings and a transport wire extending through each side opening. A fixator being positioned in each branch vessel and the corresponding guide wire being attached to the corresponding transport wire, whereby re-routing of the guide wire is performed by pulling the transport wire to have the guide wire extend from the fixator through the corresponding side opening and to the outside of the person. This re-routed guide wire may be used for positioning the tubular element or guiding additional elements from the tubular element and into the branch vessel.05-17-2012
20120303110Reduced Foreshortening Stent With Bio-Resorbable Fibers - A device and method for reducing stent foreshortening are provided herein. The device includes a balloon and stent thereon. The stent has a first end portion and a second end portion and bio-resorbable fibers disposed over at least a portion of the first end portion and the second end portion. The bio-resorbable fibers over the end portions prevent the ends of the stent from prematurely expanding, thereby reducing stent foreshortening.11-29-2012
20120303109STENT DELIVERY SYSTEM - A stent delivery system has a pusher catheter having an opening to which a filament is tied to the distal end thereof, and a stent having a catching hole. Because a knot is loosely fit in the catching hole from inside, with an inner catheter supporting the loose-fitting, inadvertent uncoupling of the stent and the pusher catheter can be prevented until the inner catheter is pulled out, and the two can be easily uncoupled by pulling out the inner catheter.11-29-2012
20110251667Anchor Pin Stent-Graft Delivery System - A stent-graft delivery system includes a stent-graft including a proximal anchor stent ring. The proximal anchor stent ring includes proximal apexes and anchor pin structures extending proximally from each of the proximal apexes. The anchor pin structures include anchor pin connecting arms and anchor pins. The anchor pin structures are tucked together to accommodate small catheter sizes. Further, the anchor pins reduce or eliminate migration of the stent-graft. Further still, the anchor pin connecting arms are long and flexible thus distributing stresses in a way that improves the load carrying capacity of the anchor pins and allows flowering of the graft material of the stent-graft prior to release of the anchor pins structures.10-13-2011
20110251663Drug Eluting Rolled Stent and Stent Delivery System - The drug eluting rolled stent and a stent delivery system, which includes a catheter; a balloon operably attached to the catheter; and a stent disposed on the balloon. The stent includes a rectangular metal foil sheet having a first side and a second side, the rectangular metal foil sheet being rolled to form a cylindrical tube having a central axis and a spiral cross section perpendicular to the central axis; a polymer drug coating disposed between and adhering the first side and the second side; and at least one opening formed through the cylindrical tube generally perpendicular to the central axis, the at least one opening being shaped to form at least one strut having in cross section polymer drug layers between metal foil layers, polymer drug layer edges of the polymer drug layers being in communication with the at least one opening.10-13-2011
20110034987ROLL SLEEVE MECHANISM FOR PROXIMAL RELEASE STENT - A medical device for releasing expandable prostheses in a proximal to distal direction includes an elongate catheter, a flexible sleeve, and an expandable prosthesis. In one embodiment, the distal end of the flexible sleeve is disposed about the distal end of the elongate catheter. In order to deploy the expandable prosthesis, the flexible sleeve is pulled proximally through the lumen of the elongate catheter to expose the expandable prosthesis. An outer sheath and prosthesis retaining line may also be provided to allow the device to release an expandable prosthesis in the distal to proximal direction, or to allow the recapture of the expandable prosthesis after the flexible sleeve is fully withdrawn into the lumen of the elongate catheter.02-10-2011
20110034986SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY - Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.02-10-2011
20110029061CARINA MODIFICATION CATHETER - The present invention relates to a carina modification catheter capable of removing a protrusion (carina) of a stent installed in a branched blood vessel, and more particularly, to a catheter which can remove a protrusion of a stent in a branched blood vessel by being easily inserted into a main blood vessel and the branched blood vessel when adjustment of the position of stents installed in the main blood vessel and the branched blood vessel is required, thereby completely covering a branched-portion de novo lesion and reducing the possibility of instent-restenosis (ISR) in the blood vessel after the operation.02-03-2011
20110009940VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS - A device including a self-expandable member having a proximal end portion, a main body portion and a distal end portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. In one implementation, at least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body and distal end portions of the expandable member. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature of a patient. In another implementation, the device is delivered to the treatment site through the lumen of a delivery catheter.01-13-2011
20110009941VASCULAR AND BODILY DUCT TREATMENT DEVICES AND METHODS - A device including a self-expandable member having a proximal end portion and a main body portion. Each of the self-expandable portions consists of a plurality of cell structures formed by intersecting strut members. In one implementation, at least one proximal cell structure in the proximal end portion has one or more struts that have a width and/or thickness greater than the width and/or thickness of the majority of strut members in the main body of the expandable member. In another implementation at least some of the intersecting strut members have a thickness to width ratio of greater than one. Attached to at least one of the proximal-most cell structures in the proximal end portion is a proximally extending flexible wire having sufficient length and flexibility to navigate the tortuous vasculature of a patient. In another implementation, the device is delivered to the treatment site through the lumen of a delivery catheter.01-13-2011
20100312321Embolization coil and delivery system - A detachable embolization coil is screw threaded at the proximal end for releasable attachment to a delivery member within a delivery catheter. The coil has a proximal fibred portion and a distal non-fibred portion, the axial length of the non-fibred portion being as great or greater than the axial length of the non-fibred portion. The fibred portion carries a plurality of fibres of thrombogenic fibrous material. In this way, a partially delivered coil may be retracted into a delivery catheter for repositioning, substantially without hindrance from clotting.12-09-2010
20100305679Stent Replacement System - A system for delivering and placement of a medical prosthesis into an ostium of a tract system of an organism is described. The system comprises a stent delivery device that includes a delivery catheter having one or more lumens extending between proximal and distal ends. The stent delivery device also includes an inflatable balloon mounted on the distal end of the delivery catheter for expanding and deploying the medical prosthesis placed on the balloon, and a stent deployment site locator configured for locating an exact place for positioning the medical prosthesis. The deployment site locator comprises an expandable flexible structure including a plurality of filament elements interconnected between a locator proximal end and a locator distal end; thereby forming a unitary structure. The filaments can extend from a locator proximal end towards a locator distal end and then return after winding to the proximal end to form a plurality of filament loops.12-02-2010
20110213453STENT - A bioabsorable stent is disclosed. The stent is made of a bioabsorable material and has an elongated body having a proximate end, a distal end, and at least one open channel formed on the exterior surface of the elongated body to provide fluid communication between the proximal end and the distal end. Also disclosed is a bioabsorable stent having an elongated center rod having a proximate end and a distal end and a plurality of leaflets extending outward from the center rod and forming channels between two neighboring leaflets to provide fluid communication between the proximal end and the distal end.09-01-2011
20120277846APPARATUS AND METHOD OF PLACEMENT OF A GRAFT OR GRAFT SYSTEM - An endoluminal prosthesis system deployable in a region of a patient's vasculature having one or more branch vessels, having a main graft body having a first opening in a wall portion of the main graft body and a pre-loaded guidewire positioned inside the main graft body and advanced through the first opening. One or more branch grafts can be attached to the main graft body to cover one or more openings in the main graft body.11-01-2012
20120277842METHOD AND DEVICE FOR TREATMENT OF HYPERTENSION AND OTHER MALADIES - Systems and methods for treating hypertension and other maladies are implemented using an implant device that is configured with one or more coils of ribbon which form ring-like structures when deployed in a patient's vasculature and are interconnected via respective extension arms formed from at least one helical winding. In an illustrative example, the catheter is positioned in the patient's aorta near the right angle junction with renal vasculature so that the axis of the catheter is substantially perpendicular to the axis of the vasculature. Through operation of an implant device delivery system having a pigtail distal end the ribbon emerges from the catheter tip and coils into the ring-like structures which deploy into the renal vasculature so that the longitudinal axes of the device and vasculature are substantially co-linear.11-01-2012
20090005852Methods and Devices for Placing a Conduit in Fluid Communication with a Target Vessel - Methods and devices for placing a conduit in fluid communication with a target vessel and a source of blood, such as the aorta or a heart chamber. The device may be actuated using one hand to place the conduit. The invention allows air in the conduit to be removed prior to placement of the conduit. The invention deploys the conduit in the target vessel by moving a sheath in a distal direction and then in a proximal direction. A conduit is provided with a reinforcing member to prevent kinking of the conduit, and a structure for preventing blockage of the conduit by tissue. A vessel coupling may be used to secure a conduit to a target vessel so as to preserve native blood flow through the vessel, and the conduit may be placed in fluid communication with a target vessel via a laparoscopic or endoscopic procedure.01-01-2009
20100070015STENTS AND CATHETERS HAVING IMPROVED STENT DEPLOYMENT - An implant delivery system and method comprises an implant, for example, a stent, and a delivery catheter. The stent has a scaffold with a coating or a shell that retains the scaffold in a collapsed configuration. The coating or shell is made of a material that dissolves or biodegrades upon exposure to a dissolution or biodegradation media. The stent is used with an implant delivery system which has a catheter with a catheter, wherein the stent is mounted on the catheter shaft. The catheter shaft is configured to be withdrawn through the patient's vessel when the scaffold is in its expanded configuration. Advantageously, the implant is thereby prevented from changing length during implant delivery and implant deployment.03-18-2010
20100004731APPARATUS FOR DEPLOYMENT OF MICRO-COIL USING A CATHETER - The apparatus for deployment of a therapeutic device such as a micro-coil detachably mounts the therapeutic device to a distal portion of a pusher member. In one embodiment, the therapeutic device is detachably mounted to the distal portion of the pusher member by a tubular collar that can be heated by a heater such as an electrical resistance coil to expand the collar and release and deploy the therapeutic device. The apparatus for deployment of a therapeutic device such as a micro-coil may also provide for a pusher member and a connector fiber for securing the therapeutic device to the pusher member. The connector fiber passes through a heater within the distal portion of the pusher member, for heating and breaking the connector fiber to release the therapeutic device when a desired placement of the therapeutic device within the vasculature is achieved.01-07-2010
20100004732MEDICAL APPLIANCE DELIVERY APPARATUS AND METHOD OF USE - The present invention, in an exemplary embodiment, provides a stent deployment apparatus comprising safety and stent placement and deployment features. An exemplary stent deployment apparatus includes a longitudinally extending outer tubular member and a safety mechanism coupled thereto, wherein the safety mechanism includes a diverted channel. The apparatus also includes a longitudinally extending inner tubular member being longitudinally and axially displaceable relative to the outer tubular member, wherein the inner tubular member further comprises at least one detent along the longitudinal expanse thereof for operative interaction with the diverted channel. The extent of displaceability of the outer tubular member and inner tubular member relative to the other is limited to a predetermined threshold corresponding to engagement of the detent with the diverted channel absent intervention by the user of the device such that the degree of stent deployment is limited absent the user intervention.01-07-2010
20100004729APPARATUS AND METHODS FOR DELIVERY OF MULTIPLE DISTRIBUTED STENTS - Blood vessels and other body lumens are stented using multiple, discreet stent structures. Stent structures may be balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sights. By coating the stents with particular biologically active substances, hyperplasia within and between the implanted stents can be inhibited. An exemplary delivery catheter comprises a catheter body having both a pusher rod for advancing the stents relative to a sheath and a reciprocatable delivery catheter for implanting the stents.01-07-2010
20100004730CATHETER SYSTEM AND METHODS OF USING SAME - Some embodiments are directed to a catheter system comprising an introducer having a main body, an introducer sheath projecting from the main body, and a first seal supported within the introducer and a catheter having a main body, an outer sheath projecting from the main body, a second seal supported within the catheter, and an inner core configured to be advanced axially through the main body, the second seal, and the outer sheath. The introducer can be configured to be selectively engageable with the catheter so that the catheter can be selectively and removably linked with the introducer in the axial direction. The catheter system can also be configured such that, when the introducer and the catheter are linked, the catheter can be rotatable relative to the introducer. The introducer can be configured to radially restrain an endoluminal prosthesis.01-07-2010
20120203323METHOD AND SYSTEM FOR DELIVERY OF COATED IMPLANTS - An implant delivery system comprises an implant delivery device having a releasable implant retention region, with the releasable implant retention region having a delivery device coating including a therapeutic agent. The implant delivery device may be a balloon catheter. An implant is releasably positioned in physical communication with the releasable implant retention region. The implant may comprise an implant coating on its inner and/or outer surface, and the implant coating may include a therapeutic agent. The implant may be a stent.08-09-2012
20120203322QUICK RELEASE MECHANISM FOR MEDICAL DEVICE DEPLOYMENT - A medical device assembly having a quick release mechanism reversibly engaged with a medical device and a method used by an operator to deploy said medical device at a targeted site in a body vessel is provided. The quick release mechanism generally comprises an inner core wire and an outer coil having a proximal section and distal section. The inner core wire and the outer coil are coupled together proximate to their distal end with the outer coil having an enlarged overall thickness in its distal section. The medical device has an opening sized to receive and to detachably engage the distal section of the outer coil. The quick release mechanism having an engaged position in which the outer coil is securely holds the medical device and a detached position in which the outer coil and medical device are substantially unengaged. The operator causes the quick release mechanism to move from the engaged position to the detached position by moving the inner core wire and outer coil in opposite directions.08-09-2012
20090287291Embolic Device Delivery Systems - Embolic implants, delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm treatment and/or parent vessel occlusion. Implant designs offer low profile compressibility for delivery to neurovasculature, while maintaining other necessary features such as density for occlusion purposes and desirable radial strength characteristics.11-19-2009
20080243223Device for affixing of tubular medical accessory to a body passage - A device for affixing a tubular medical accessory to a wall of a body passage is disclosed. The said device comprises a handle portion, a barrel portion and a working head portion, said barrel portion is fitted with a pushing rod displaceable along the barrel portion upon actuating the handle portion. The working head portion is fitted with a plurality of wings and levers and said wings are preloaded with a plurality of staples. Upon initial displacement of the pushing rod in a distal direction the wings are swiveled towards the medical accessory such that they abut it and stretch it together with the body passage in a radial direction. Upon still further displacement of the pushing rod the levers are swiveled and cause the staples to exit from the wings such that the staples pierce the accessory and the wall of the body passage and affix the accessory to the body passage.10-02-2008
20080243221BALLOON FOLD DESIGN FOR DEPLOYMENT OF BIFURCATED STENT PETAL ARCHITECTURE - A balloon fold design for efficient expansion of a side branch assembly in a bifurcated stent. The design involves forming a cup allangement by folding the radial end of the side branch balloon structure into the luminal end of the side branch balloon structure and then folding the cup down into an orderly discus arrangement. The folding pattern allows for the side branch balloon structure to inflate in a sweeping rotational manner efficiently pushing the side branch assembly petals out and away from the main body of the stent with a low risk of the balloon becoming entangled or damaged by its contact with the petals. The design also allows for the expansion force to be applied at the appropriate time in the optimally needed direction by initially being oriented in a predominantly circumferential direction which is gradually shifting to a predominantly radial direction. In addition, the fold design reduces the overall volume and profile of the side branch balloon structure.10-02-2008
20090182406BIFURCATED STENT DELIVERY SYSTEM - The present invention is drawn to a system and/or device for deploying a stent at a bifurcation. In one embodiment, the system and/or device for deploying a stent at a bifurcation may include a dual balloon catheter may include an elongate catheter body. Some dual balloon catheters may have a first proximal balloon and a second balloon bonded to at least a portion of the elongate catheter body. In some cases, a guide wire port may be positioned between the first and second balloons.07-16-2009
20090005850Molybdenum Endoprostheses - An endoprosthesis can have a member that includes molybdenum and at least one metal selected from the group consisting of titanium, rhenium, yttrium, palladium, rhodium, ruthenium, tungsten, tantalum, iridium, zirconium, hafnium, niobium, chromium, and combinations thereof. The member can have a microstructure characterized by: (a) a molybdenum-rich base region comprising at least 50 weight percent molybdenum, (b) a surface region comprising at least one metal selected from the group consisting of titanium, rhenium, yttrium, palladium, rhodium, ruthenium, tungsten, tantalum, iridium, zirconium, hafnium, niobium, chromium, and combinations thereof, and (c) an inter-diffusion region in which the concentration of molybdenum decreases in the thickness direction from the molybdenum-rich base region to the surface region of the member.01-01-2009
20110257719Retraction Mechanism and Method for Graft Cover Retraction - A stent or stent-graft delivery system includes a handle having a graft cover retractor having a screw gear and a drive and quick release assembly. The drive and quick release assembly allows a user to retract a graft cover by rotating the assembly in a first rotational direction about the screw gear. When the assembly is being rotated in a particular rotational direction, a partial revolution in the opposite rotational direction disengages the assembly from the screw gear, which is sensed by a change in the force required to rotate the assembly. With the assembly disengaged from the screw gear, the assembly can be slid along the screw so that the graft cover can be positioned more quickly. In transitioning from using the screw gear to sliding along screw gear, it unnecessary to push any button and unnecessary for the user to remove her/his hand from the assembly.10-20-2011
20090105798HANDLE FOR STEPWISE DEPLOYMENT - A system for controlled deployment of a prosthesis, in which a sheath is retracted from a prosthesis in a body vessel or duct. The system includes a handle for deploying the prosthesis, the handle comprises a base member fixed to a catheter, and a slide member for sliding past the base member, the slide member being fixed to an end of a retraction member. The slide member includes a serrated gear rod, and the handle is configured such that, when activated, the gear rod moves in relation to the base member by no more nor less than the length of one serration on the gear rod.04-23-2009
20110257723DEVICES AND METHODS FOR CORONARY SINUS PRESSURE RELIEF - A method and devices for relieving pressure in the left atrium of a patient's heart is disclosed. The method includes using an ablative catheter in a minimally invasive procedure to prepare an opening from the coronary sinus into a left atrium of the patient's heart. Once the opening is prepared, the opening may be enlarged by a technique such as expanding a balloon within the opening. A stent is then placed within the coronary sinus of the patient, with a transverse portion expanding within the opening, allowing blood to flow from the left atrium to the coronary sinus and then to the right atrium. Pressure within the left atrium is thus relieved.10-20-2011
20110257722STENT AND CATHETER ASSEMBLY AND METHOD FOR TREATING BIFURCATIONS - An apparatus and method is provided for stenting bifurcated vessels. A proximal angled stent is configured for implanting in a side-branch vessel wherein the proximal angled stent has an angulated portion that corresponds to the angle formed by the intersection of the side-branch vessel and the main vessel so that all portions of the side-branch vessel at the bifurcation are covered by the proximal angled stent. A main-vessel stent is provided for implanting in the main vessel, wherein the main-vessel stent has an aperture or stent cell that aligns with the opening to the side-branch vessel to permit unobstructed blood flow between the main vessel and the side-branch vessel. Side-branch and main-vessel catheter assemblies are advanced over a pair of guide wires for delivering, appropriately orienting, and implanting the proximal angled stent and the apertured stent.10-20-2011
20110257721Prosthetic Heart Valves and Delivery Methods - A method of remodeling a stented device and an adjacent a valve region of a patient, including the steps of implanting a stented device into a native valve region of a patient, providing a first remodeling ring on a portion of a delivery system, advancing the remodeling ring into an interior area of the implanted stented device with the delivery system, radially expanding the remodeling ring until it modifies at least one of an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned, and removing the delivery system from the patient.10-20-2011
20110257720Controlled Tip Release Stent Graft Delivery System and Method - An apparatus and method of deploying a stent graft having a proximal anchor stent ring includes restraining proximal apexes of the proximal anchor stent ring between a spindle body of a spindle and a control release sleeve of a tapered tip. The control release sleeve is advanced relative to the spindle to release a first proximal apex through an opening in the control release sleeve while the remaining proximal apexes remain restrained by the control release sleeve. The control release sleeve is further advanced relative to the spindle to release the remaining proximal apexes from the control release sleeve. In another example, a stent capture fitting has variable length stent capture fitting arms. As the stent capture fitting is retracted, the proximal apexes of the proximal anchor stent ring are sequentially exposed from and released by the variable length stent capture fitting arms. By using the control release sleeve or the stent capture fitting, controlled sequential release of the proximal apexes is achieved.10-20-2011
20110257718Retraction Mechanism and Method for Graft Cover Retraction - A stent or stent-graft delivery system includes a handle having a graft cover retractor having a screw gear and a drive and quick release assembly. The drive and quick release assembly includes a proximal portion and a distal portion that are separable. The proximal portion of the drive and quick release assembly rotates in a first rotational direction about the screw gear to retract the graft cover using the screw gear. The drive and quick release assembly transitions from retraction using the engagement with the screw gear to retraction by sliding by the user grasping the distal portion instead of the proximal portion, and sliding the proximal portion only along the screw gear. In transitioning from using the screw gear to sliding along screw gear, it unnecessary to push any button and unnecessary for the user to remove her/his hand from the assembly.10-20-2011
20120065720SYSTEM AND METHOD FOR MECHANICALLY POSITIONING INTRAVASCULAR IMPLANTS - An intravascular implant delivery system carries an implant by retaining an engagement member engaging the implant in a position proximal of an aperture at a distal end of the delivery system. The engagement member is retained proximal to the aperture by a cord that obstructs the movement of the engagement member through the aperture. The engagement member is free to rotate and move within an area defined by the delivery system, allowing the implant to react to forces imparted to the implant by the movement of the delivery system and implant through a delivery catheter. Once the implant is in a desired implant position, the cord is moved away from an aperture and the engagement member is allowed to move away from the delivery system.03-15-2012
20120277843PROTECTIVE SURFACES FOR DRUG-COATED MEDICAL DEVICES - Medical balloons having one or more folds, on which are disposed protective surfaces e.g., protective lines or strips, and at least one therapeutic agent between the lines. The protective surfaces prevent, inhibit, or reduce the contact between therapeutic agent on one area, e.g., a surface area, and an opposing area or therapeutic agent on the opposing area when the balloon is folded. The protective surfaces also prevent, inhibit, or reduce loss of therapeutic agent from the balloon surface as a result of, for example, contact with a medical device during expansion or removal of a protective sheath. Also a medical device delivery system comprising a medical device surrounded by a retractable sheath, wherein protective surfaces are disposed on the sheath.11-01-2012
20080288041Cutting Member for Bifurcation Catheter Assembly - A catheter assembly for deployment in a vessel includes a catheter shaft extending from a proximal end portion to a distal end portion. A balloon is operatively coupled to the distal end portion of the catheter shaft. At least one cutting member is coupled to the catheter assembly. As the balloon is inflated, the cutting member is moved to a position to cut a portion of the vessel.11-20-2008
20080255655STRETCHABLE STENT AND DELIVERY SYSTEM - An implant delivery catheter enables permanent modification of the implant length in the vicinity of the treatment site prior to radial expansion thereof. The implant is releasable carried between inner and outer tubular members of the delivery catheter which, upon repositioning relative to one another using an actuator mechanism, impart any of tensile, compressile or torquing forces to the implant causing permanent modification of the implant length. In one embodiment, the circumference of the implant is substantially similar both before and after modification of the implant length. In another embodiment, the implant includes a plurality of strut sections interconnected by bridges which are capable of the deformation along the longitudinal axis of the implant.10-16-2008
20100318171Multiple Stent Delivery System - A stent delivery system includes a delivery wire, a first stent, a second stent, and a sheath. The first stent may be disposed around a portion of a distal region of the delivery wire in a radially contracted configuration and the second stent may be disposed around a portion of the distal region of the delivery wire in a radially contracted configuration. In some cases, the first stent and the second stent may be disposed in a tandem arrangement with the first stent distal of the second stent. The sheath may be slidably disposed around the delivery wire, the first stent, and the second stent. The sheath may be retractable relative to the delivery wire to deploy the first stent and the second stent. In some embodiments, the first stent and the second stent may be sequentially deployed in an overlapping arrangement at the target site in the vessel.12-16-2010
20080215130MEDICAL DEVICE DELIVERY CATHETER - Apparatus for delivering a medical device to a location in a patient's body includes an elongate catheter body having a proximal end and a distal end, a pod coupled with the distal end of the catheter body and adapted to house the medical device during delivery to the location and to open to release the medical device, and at least one distal actuator coupled with at least one of the pod and the medical device. The distal actuator is adapted to promote opening of the pod. A method involves advancing a pod at the distal end of an elongate catheter to the location within the body and activating an actuator coupled with the pod and/or the medical device to cause the pod to open. Opening the pod releases the medical device.09-04-2008
20080255651Telescoping Stability Sheath and Method of Use - A telescoping stability sheath and method of use, including a telescoping stability sheath for use with a stent delivery system having a delivery catheter and an introducer, the delivery catheter having a retractable sheath and a stability sheath stop axially slidable on the retractable sheath, the introducer having an introducer fitting slidably tightenable about the retractable sheath axially slidable within a sheath stop. The telescoping stability sheath includes a first segment slidably disposed about the retractable sheath, a second segment slidably disposed about the first segment, and a stability fitting attached to at least one of the first segment and the second segment. The stability fitting fixes a set length between the introducer fitting and the stability sheath stop when the stability fitting is engaged to lock the first segment to the second segment.10-16-2008
20080255653Multiple Stent Delivery System and Method - A method of deploying multiple stents using a multiple stent delivery system includes moving a distal stent into contact with a stent-holding surface of a compressible expanded tip of an inner member. A sheath is retracted relative to the inner member to deploy the distal stent by holding the distal stent stationary with the inner member and retracting the sheath. The sheath is advanced relative to the inner member to reposition a proximal stent to capture, be positioned behind a next stent to be deployed by being compressed and passing the compressible expanded tip through the next proximal stent. The sheath is retracted relative to the inner member to bring the next stent to a pre-deployment position and then deployment of the next proximal stent can take place as already performed for the first deployed stent.10-16-2008
20110054587APPARATUS AND METHOD OF PLACEMENT OF A GRAFT OR GRAFT SYSTEM - Some embodiments of the present disclosure are directed to a method of deploying a graft in a patient's blood vessel having at least a first and a second branch blood vessel, comprising advancing a delivery catheter into a blood vessel, the delivery catheter supporting a fenestrated prosthesis therein, wherein the prosthesis comprises a main graft body, exposing at least one branch sheath, the branch sheath being positioned within the delivery catheter so as to project from a main lumen of the prosthesis through a first opening formed through a wall of the prosthesis, and advancing an angiographic catheter into the branch sheath and cannulating a first target branch vessel before expanding the main graft body of the prosthesis.03-03-2011
20110054586APPARATUS AND METHOD OF PLACEMENT OF A GRAFT OR GRAFT SYSTEM - Some embodiments relate to endoluminal prostheses having a first stent portion and a second stent portion, a main graft body comprising first, second, and third portions, the second portion having a cross-sectional size that is significantly larger than a cross-sectional size of the first or third portions, and also significantly larger than a cross-sectional size of the target vessel. In some embodiments, the first portion of the main graft body can be attached to the first stent portion and the third portion of the main graft body can be attached to the second stent portion. The prostheses can be configured such that the second portion of the main graft body is not directly attached to the first stent portion, the second stent portion, or any other internal support structure. In some embodiments, one or more openings can be formed in the second portion of the main graft body.03-03-2011
20110054585PROSTHESIS DEPLOYMENT SYSTEM - A trigger wire release mechanism is disclosed that includes a control member for selectively releasing a trigger wire (03-03-2011
20130158646CIRCUMFERENTIAL TRIGGER WIRE FOR DEPLOYING AN ENDOLUMINAL PROSTHESIS - A deployment device for deploying an expandable endoluminal prosthesis within a body vessel may include an elongate member extending longitudinally along at least a portion of a length of the deployment device. The deployment device may include at least one engagement member coupled to the elongate member and extending outwardly from the elongate member. The deployment device may include a circumferential trigger wire extending at least partially circumferentially around the elongate member and removably received between the engagement member and the elongate member. The circumferential trigger wire may be manipulatable from a distal end of the deployment device, whereby the circumferential trigger wire is removable from between the engagement member and the elongate member.06-20-2013
20130158645Support Structure For An Endoprothesis, An Endoprotheses And Associated Methods - The disclosure is related to an endoprothesis, such as a stent. The disclosure also relates to a support structure for an endoprothesis and methods of delivering such an endoprothesis as well as a method of manufacturing a support structure. Furthermore, the disclosure provides an improved positioning of an endoprothesis and overcomes the folding issues and thus improves the flow through a body vessel. One embodiment provides a tubular support structure for avoiding folding of an endoprothesis, such as a stent or a valve, comprising one or more first circumferential zigzag patterns, at least two second circumferential zigzag patterns and wherein the first and second circumferential zigzag patterns are overlapping.06-20-2013
20080234795DEVICES AND METHODS FOR CONTROLLING EXPANDABLE PROSTHESES DURING DEPLOYMENT - A catheter for delivering a prosthesis to a treatment site in a body lumen comprises an elongate flexible member and a sheath slidably disposed thereover. A plurality of self-expanding tubular prostheses are carried in axially spaced apart locations along the elongate member, within the sheath. The prostheses may be selectively interlocked with one another and are constrained by the sheath in a radially contracted configuration. The prostheses are separately releasable from the sheath when the sheath is retracted relative to the elongate member. The catheter also has a pusher member slidably disposed along the elongate member within the sheath. The pusher is adapted to move past the prostheses in a first direction without displacing the prostheses, while in a second direction the pusher engages a selected prosthesis so as to move the prosthesis with the pusher to interlock the selected prosthesis with a second prosthesis.09-25-2008
20100292772ENDOVASCULAR ROUTER DEVICE AND METHOD - A router device is a intraluminal prosthesis which is used in the repair of aneurysms and other diseases of the aorta. The device also has applications in other vascular beds. The device incorporates an inflatable cuff or sequence of cuffs at one end for fixation and sealing. This cuff may be placed proximal to branch vessels of the aorta. Attached to the cuff is a tubular graft consisting of a generally cylindrical graft material. The graft material may contain one or more fenestrations, intended to align with branch vessels as they emerge from the parent vessel, the aorta in the preferred embodiment. The device features a deliberate taper of its diameter as the device crosses the area of branch vessels. This taper brings the diameter of the graft material to a lesser diameter than that of the parent vessel, leaving a deliberate and distinct space between the device and the wall of the vessel. This space allows more easily achieved engagement of the branch vessels with stents using standard catheterization techniques.11-18-2010
20110118816Stent Graft and Introducer Assembly - A stent graft (05-19-2011
20110125247BALLOON CATHETER WITH NON-DEPLOYABLE STENT - An angioplasty balloon including a non-deployable stent to prevent or reduce the potential for slippage of the inflated balloon with respect to the vessel wall being treated. The balloon includes a non-deployable stent that is adapted to be secured to the balloon or angioplasty balloon catheter. The stent has a proximal end, a distal end, and at least one extension section, at least one set of serpentine rings and at least one set of elongation links that allow expansion of the strut to accommodate the inflation of the balloon. The stent is made of a material so that the stent collapses upon deflation of the balloon.05-26-2011
20110125246DELIVERY TOOLS AND METHODS FOR INTRAVASCULAR IMPLANTABLE DEVICES - Improved methods and apparatuses for positioning intravascular implantable device (IID) in a patient's vasculature utilize a device delivery system having an elongated flexible body. A handle can be operably connected to the proximal end and a grasper mechanism can be positioned at the distal end of the device delivery system. The grasper mechanism can be configured to releasably grasp the IID by closing a releasable honda around the IID and can be selectively controllable with the handle.05-26-2011
20110125245HYPOTUBE ENDOLUMINAL DEVICE AND METHOD - A self-expanding endoluminal device comprising a tubular filamentary member having a hollow core for receiving a guidewire, the tubular member having a straightened configuration with the guidewire in the hollow core, a shape memory configuration without the guidewire in the hollow core, and an extension, optionally severable, accessible from outside of the body. The hollow core may be adapted to contain and elute or permanently contain a substance, which may be injected through the extension. A delivery system includes the guidewire, and a deployment method includes deployment with a proximal end of the extension accessible from outside of the body.05-26-2011
20110125244STENT GRAFT AND INTRODUCER ASSEMBLY - A stent graft (05-26-2011
20110137395CATHETER SYSTEM - A catheter system, comprising a catheter having a distal end and a proximal end; a functional section situated close to the distal end of the catheter; an inner shaft having a guidewire lumen; an outer tubing, such that the outer tubing completely or partially surrounds the functional section; a guidewire outlet having a distal portion and a proximal portion, such that the guidewire outlet passes through the inner shaft and the outer tubing; a guidewire, such that the guidewire is situated on the distal end of the catheter inside the guidewire lumen and is guided out of the catheter through the guidewire outlet, such that the guidewire outlet is attached close to the distal end of the catheter and proximally of the functional section; a cutting device for severing the outer tubing in retraction of same is attached to the distal portion of the guidewire outlet.06-09-2011
20110137396STENT DEVICE DELIVERY SYSTEM WITH INWARDLY TAPERING STENT BED - A stent device delivery system and method of making. The stent device delivery system includes a stent device, an outer sheath overlaying the stent device in a radially compact, delivery configuration of the stent device, and an inner catheter extending axially and radially within a lumen of the stent device. The inner catheter provides a stent bed upon which the stent device is located so that a radially inner surface of the stent device engages a radially outer surface of the stent bed. The stent bed may define an inwardly tapering profile, narrowing in radius from a distal portion of the stent device to a proximal portion of the stent device.06-09-2011
20110137394METHODS AND SYSTEMS FOR PENETRATING ADJACENT TISSUE LAYERS - Penetration and dilation of passages from a first body lumen to a second body lumen are achieved while providing tension anchoring of the luminal walls to inhibit the leakage of body fluids. In one embodiment, one or more T-bar anchors may be used to provide the tensioning of the body lumen walls. In a second embodiment, a plurality of hooked or everted wires may be provided on a catheter which is used to penetrate and dilate a passage between the luminal walls.06-09-2011
20100324648CONTROLLED EXPANSION BALLOON CATHETER - The invention relates to a drug-coated balloon catheter which has a catheter balloon mounted on its distal end and an expansion protection surrounding the same. The invention is characterized in that the catheter balloon is protected from premature expansion even under strong mechanical stress and in that the catheter balloon folds back more easily after dilation.12-23-2010
20100185270STERILIZATION METHODS AND APPARATUS - Sterilization methods for implantable prostheses are described where a polymeric stent may be sterilized, e.g., via ETO sterilization, at a temperature below a glass transition temperature of the stent. A separate delivery catheter may be sterilized separately and the stent and delivery catheter may then be combined in an aseptic or semi-aseptic environment and sterilized as an assembled system such that the requirements for sterilizing the system are relatively lower. Additionally and/or alternatively, valve and filter assemblies may be used with an optional mandrel assembly for maintaining sterility of the internal components of a catheter system.07-22-2010
20100185271DELIVERY APPARATUS FOR A RETRACTABLE SELF EXPANDING NEUROVASCULAR STENT - The present invention relates to a delivery apparatus for delivering a self-expanding neurovascular stent that allows for smooth movement of the apparatus along a typically tortuous vascular path, ease of stent deployment, and ease of stent retractability being pushed and pulled through the delivery apparatus. The apparatus includes an outer catheter, and an inner shaft located coaxially within the outer catheter. The stent is mounted on the distal section of the inner shaft and preloaded within the outer catheter distal region. The inner shaft includes at least one stent blocking member disposed in the distal section. The self-expanding stent has proximal, middle and distal ends and is comprised of a plurality of closed cells. The self-expanding stent includes locking members which interlock with the blocking member(s) disposed on the inner shaft so as to lock the stent onto the inner shaft within the outer catheter, and to enable the stent retractable together with the inner shaft being out of and retrieved back to the outer catheter. More specially, the invention may be used in the treatment of blood vessel blockage and aneurysms which occur in the brain.07-22-2010
20100331947Inflatable Medical Device - A medical device comprising a compartment capable of receiving and holding a substance in a liquid form is disclosed. The compartment is inflatable from a deflated state to an inflated state, such that when the compartment is in the deflated state, the outer wall of the membrane is substantially impermeable to the substance, and when the compartment is in the inflated state, the substance is allowed to permeate through the outer wall.12-30-2010
20100179638SINGLE PUNCTURE BIFURCATION GRAFT DEPLOYMENT SYSTEM - The present invention relates to the endoluminal repair of abdominal aortic aneurysms at the aortic and iliac bifurcation. In particular, a deployment system and graft are disclosed for deploying the bifurcated graft within both iliac branches, as well as the aortic trunk, from a single vascular access.07-15-2010
20100179636GRAFT DEPLOYMENT SYSTEM - A deployment catheter for deploying endoluminal vascular prosthesis that has at least a main graft portion and a first branch graft portion includes an elongate, flexible catheter body having a proximal end and a distal end and comprising an outer sheath and an inner core that is axially moveable with respect to the outer sheath. The catheter includes a main graft restraint that has a main graft release mechanism comprising a plurality of axially spaced restraint members. The catheter further includes a branch graft restraint comprising a branch graft release mechanism.07-15-2010
20100179634Methods and Devices for Delivery of Prosthetic Heart Valves and Other Prosthetics - Prosthetic valves and their component parts are described, as are prosthetic valve delivery devices and methods for their use. The prosthetic valves are particularly adapted for use in percutaneous aortic valve replacement procedures. The delivery devices are particularly adapted for use in minimally invasive surgical procedures. The preferred delivery device includes a catheter having a deployment mechanism attached to its distal end, and a handle mechanism attached to its proximal end. A plurality of tethers are provided to selectively restrain the valve during deployment. A number of mechanisms for active deployment of partially expanded prosthetic valves are also described.07-15-2010
20100179633Tissue Penetration Device and Method - A medical device for canalization of a tissue of a body portion by penetration thereof, a kit, a manufacturing method and a method of canalization are disclosed. The device is adapted for trans-catheter delivery to the body portion, and comprises a radially expandable and crimpable or collapsible substantially tubular member that has a rear end, a front end, and a pattern of struts or a mesh of wires arranged in-between the rear end and the front end, arranged around an interior of the device. The tubular member has extensions, which are arranged towards the interior of the device in a first state of the device, and towards an exterior of the medical device in a second state of the device, wherein the second state of the medical device is the tubular member turned inside out. During storage, the device is restrained in a delivery catheter in the second state. During delivery the device turns outside in and digs into the tissue to create a channel therein, thus preventing or fixating debris or other matter to spread from the channel.07-15-2010
20100179632Robotic Fenestration Device Having Impedance Measurement - A method and system for real-time continuous impedance monitoring along the surface of a graft implanted within a main vessel to aid in optimally positioning an electrode at a branch vessel ostium. Due to the conductivity differences among various kinds of solid tissue and blood, a fenestration catheter system uses impedance monitoring as a tool to detect the location of branch ostia through graft cloth. Such information enables the fenestration electrode to be properly positioned for creation of a fenestration in the graft cloth in situ. In addition, the fenestration catheter system may utilize impedance information to avoid contact between the electrode and metal stent structures used to anchor the graft during an in situ fenestration procedure. The fenestration catheter system includes a catheter shaft, an electrode, one or more reference or indifferent electrodes, an impedance analyzer, a power source and an electrode position reference to record impedance measurements in relation to position.07-15-2010
20100179637TRANS-LUMINAL SURGICAL DEVICE - A device for trans-luminal delivery of a self-expanding stent or other surgical device and which is designed for rapid exchange over a guidewire has a guidewire lumen that adjacent its proximal exit port lies side-by-side with the line of the shaft of the device. A sleeve which surrounds and confines the stent has a proximal end that is shaped around the guidewire exit port to show in profile a shape reminiscent of the nose of a dolphin. In preferred embodiments, the sleeve also has a tapered distal tip that is withdrawn proximally over the length of the stent to release it, progressively, from its distal end. The configuration delivers simplicity of design, enhanced performance and reliability in use.07-15-2010
20090171430BIFURCATION STENT DELIVERY SYSTEM AND METHODS - A catheter assembly may include a main balloon arranged to reside within the main vessel, and a branch balloon configured to extend from the main vessel into the branch vessel. A stent may be situated around the main balloon and may include a branch aperture at a location between proximal and distal open ends of the stent. The branch balloon may extend from within the stent, through the branch aperture, and into the branch vessel. The branch balloon, when inflated, may extend into the branch vessel. The main balloon, when inflated, may also expand the stent within the main vessel. In some arrangements, the branch balloon, when inflated, can function as an anchor within the branch vessel that resists radial and axial movement of the stent relative to the branch vessel and main vessel during expansion of the stent by the main balloon.07-02-2009
20090171428Deployment handle for an implant deployment device - A deployment handle (07-02-2009
20090171432STENT-VALVES FOR VALVE REPLACEMENT AND ASSOCIATED METHODS AND SYSTEMS FOR SURGERY - Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided.07-02-2009
20090171431Electrical Conduction Block Implant Device - The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.07-02-2009
20090171429ENDOVASCULAR DEVICE DELIVERY SYSTEM - An endovascular delivery system includes a bifurcated prosthesis disposed on a delivery device and a snare catheter having a snare opening system. A sheath is slidably disposed over at least a portion of the prosthesis and at least a portion of the snare catheter. One end of the snare catheter resides external to the prosthesis in the delivery system and the other end at least partially resides in a limb of the prosthesis. A snare mechanism is disposed within the snare catheter that is capable of forming a loop external to the snare catheter through the opening and snaring a guidewire for placement in a limb of the prosthesis.07-02-2009
20090171427SEQUENTIAL IMPLANT DELIVERY SYSTEM - A method and device includes advancing a first stent and a second stent into a stenosed region of a blood vessel to protect or shield the vessel from possible blockage. The delivery device may include placement rings, selectively engagable by positioning members disposed on the outer wall of in inner catheter. The positioning members and the placement rings may be utilized to accurately place multiple stents within an afflicted vessel, in a single invasive procedure.07-02-2009
20120310321RECONSTRAINABLE STENT DELIVERY SYSTEM - The reconstrainable stent delivery system of the present invention comprises a proximal end and distal end which include inner and outer members. A pusher is positioned at the proximal end of the inner member. A slider is located coaxially with the inner member and is positioned within the inner diameter of the stent. The slider can rotate about and move longitudinally along one of an inner shaft or tube, such as the guide wire tube, such that the proximal end of the stent can move distally as the stent deploys. A pusher can be used on the guide wire tube such that the guide wire tube, pusher, and stent move proximally relative to the outer sheath and re-constrain the stent in the outer sheath. Furthermore, the pusher and guide wire tube could move distally as the outer sheath retracts proximally for stent deployment to accommodate foreshortening.12-06-2012
20120310320STENT DELIVERY SYSTEMS AND METHODS - Apparatus, systems, and methods are provided for deploying an implantable device, such as a stent, within a lumen of a body of a patient. The delivery device may include an inner member and an outer sheath surrounding a distal portion of the inner member and configured to retain the implantable device sheathed near the distal end of the outer sheath until deployment. The outer sheath is slidably moveable relative to the inner member such that proximal movement of the outer sheath relative to the inner member deploys the implantable device. A trigger assembly of the delivery device can include an internal connector coupled to the outer sheath, a plurality of triggers, and a floater coupling two of the triggers. The triggers are serially retracted to deploy the stent. A panchor secures the stent against proximal and distal movement relative to the inner member during deployment.12-06-2012
20100082090CATHETER SYSTEM WITH SPACER MEMBER - A stent delivery system includes outer and inner elongated, flexible tubular members each having a distal and proximal ends. The outer tubular member is sized to be passed through the body lumen with the distal end advanced to the deployment site and with the proximal end remaining external of the patient's body for manipulation by an operator. The inner tubular member is sized to be received within the outer tubular member. The inner tubular member has a stent attachment location at its distal end. A spacer member is disposed between the inner and outer tubular members. The spacer member maintains spacing between the inner and outer tubular members. Opposing surfaces of the inner and outer tubular members define a passageway extending from the proximal end towards the distal end of the outer tubular member. A fluid exchange port is provided in communication with the passageway at the proximal end of the outer tubular member.04-01-2010
20100082089DELIVERY SYSTEM FOR VASCULAR IMPLANT - A medical treatment system and method of treatment is described having an implant that can be positioned and deployed, then undeployed to allow repositioning of the implant. The system includes a self-expanding medical implant that longitudinally foreshortens upon radially expanding from a radially compacted state, a distal interface configured to attach the implant to a distal mount of a delivery device, and a proximal interface configured to attach the implant to a proximal mount of the delivery device. Moving the distal mount longitudinally away from the proximal mount applies a longitudinal tension to the implant causing the implant to expand longitudinally and contract radially, and moving the distal mount toward the proximal mount reduces a longitudinal tension in the implant allowing the implant to expand radially toward a fully expanded state.04-01-2010
20120209368SYSTEM AND METHOD FOR DELIVERING A STENT TO A BIFURCATED VESSEL - A stent delivery catheter system for accurately positioning a stent in a bifurcated vessel is disclosed. The system includes a catheter having a terminal portion and distal tip that is placed in a main branch of the vessel proximate the bifurcation. A fixed guidewire is attached to distal tip. A port is defined in the terminal portion of the catheter. The port is aligned with an ostium of a side branch of the bifurcated vessel to allow the passage of a stent delivery device, such as a balloon catheter having a stent crimped thereon, into the side branch. Radiopaque bands are positioned on opposite ends of the port. A positioning balloon is included on a surface of the catheter opposite the port and is selectively inflatable to position the radiopaque bands adjacent the side branch ostium. The radiopaque bands are referenced to place the stent proximate the side branch ostium.08-16-2012
20090292347SYSTEMS AND METHODS FOR HEATING AND COOLING DURING STENT CRIMPING - Methods of heating and cooling during a crimping process are disclosed. One method includes providing a cooling source to cool the stent and/or drug eluting coating of the stent while crimping the stent onto the balloon, and providing a heating source to heat the balloon while crimping the stent onto the balloon. Another method includes introducing a cooling fluid through a passage in one or more of the plurality of crimping elements of the crimping apparatus to cool the crimping elements while crimping the stent onto the balloon, and introducing a heating fluid through the elongate shaft of the balloon catheter to heat the balloon while crimping the stent onto the balloon.11-26-2009
20110190862STENT DELIVERY SYSTEM - A stent delivery system comprises a stent having a first connector disposed on a stent proximal end, and a pusher wire having a second connector disposed on a pusher wire distal end, wherein the first and second connectors are configured to releasably attach to each other.08-04-2011
20110190866POLYMERIC, DEGRADABLE DRUG-ELUTING STENTS AND COATINGS - Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally poly-L-lactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to recoil and creep, can be plastically expanded on a balloon catheter, and can be deployed rapidly in vivo. Stent coatings derived from these materials provide biocompatible, uniform coatings that are ductile, and can be expanded without the coating cracking and/or delarmnating and can be used as a coating matrix for drug incorporation.08-04-2011
20110190865Mechanically Expandable Delivery and Dilation Systems - A stent delivery system, a dilator system and a method for implanting a stent are provided. The stent delivery system includes an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent receiving portion on the distal portion of the shaft. The stent delivery system also includes a stent positioned at the stent receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration. A proximal constraining member and a distal constraining member releasably connected to the stent and having a first position and a second position are also included. The proximal constraining member and the distal constraining member cooperatively apply longitudinal tensile force to at least a portion of the stent with the proximal and distal constraining members each in the first position.08-04-2011
20110190864STENT AND STENT DELIVERY SYSTEM WITH IMPROVED DELIVERABILITY - Stent delivery systems having improved deliverability comprising an elongate member having an inflation lumen and a guidewire lumen therein; a balloon having an interior that is in fluid communication with the inflation lumen; and a stent comprising a coating mounted on the balloon. Methods for making stent delivery systems having improved deliverability. Methods for delivering two stent delivery systems concurrently through a guiding catheter, each stent delivery system comprising elongate member having an inflation lumen and a guidewire lumen therein, a balloon having an interior that is in fluid communication with the inflation lumen, and a stent comprising a coating mounted on the balloon. Stent coatings may comprise a pharmaceutical agent at least a portion of which is in crystalline form.08-04-2011
20110190863Therapeutic Balloon with Systemic Drug Loss Protection and Controlled Particle Size Release - Systemic drug loss protection devices are disclosed. The drug loss protection device includes a balloon and a drug particulate filter. The drug particulate filter has a plurality of openings and is configured to selectively permit transmission of drug particulates through the filter. Consequently, the size of the openings in the filter regulates transmission of the drug particulates. The drug particulate filter can also be used as an embolic filter.08-04-2011
20110190861LUMINAL PROSTHESIS - A luminal prosthesis comprises a plurality of axially arranged radially expandable stent segments 08-04-2011
20110137398METHOD OF LOADING A MEDICAL DEVICE INTO A DELIVERY SYSTEM - A method of loading a medical device into a delivery system includes providing a two-stage shape memory alloy at a temperature at which at least a portion of the alloy includes austenite. A stress which is sufficient to form R-phase from at least a portion of the austenite is applied to the medical device at the temperature. A delivery configuration of the medical device is obtained, and the medical device is loaded into a restraining member. Preferably, the delivery configuration of the medical device includes stress-induced R-phase.06-09-2011
20110152995DEVICE AND METHOD FOR PROVIDING A STENT FOR IMPLANTATION - A device and a method for providing a stent for implantation into a body lumen are provided, wherein the stent (06-23-2011
20120150272IMPLANT DEPLOYMENT RESTRAINT DEVICE - A restraint member is provided for preventing longitudinal movement between a self-expanding medical implant and the inner catheter upon which the implant is mounted. The restraint member may be particularly useful for a woven wire self-expanding stent where the restraint member is positioned only under one or more ends of the stent.06-14-2012
20100023109Device for the application of compression sleeves - In a device for the installation of a compression sleeve around a blood vessel, including a guide element for holding the blood vessel, and a carrier for holding the compression sleeve in a bent-open state in which the carrier and the compression sleeve are supported at the distal end of the installation device, the installation device including a push element for pushing the compression sleeve off the carrier while the blood vessel is disposed in the bent-open compression sleeve so that, upon its release from the carrier, the compression sleeve extends tightly around the blood vessel.01-28-2010
20100023106OCCLUSION CROSSING DEVICE AND METHOD - A stent delivery catheter for positioning a stent across a lesion of a blood vessel is disclosed. The catheter includes an inflation balloon coupled to a distal region of the elongate shaft of the catheter and a stent loaded on the inflation balloon. The catheter may also include an occlusion balloon having a proximal waist secured to the elongate shaft and a distal waist secured to the elongate shaft. The occlusion balloon includes a first folded-over portion extending distal of the distal waist to a distalmost extent of the occlusion balloon and a second folded-over portion extending proximal of the proximal waist to a proximalmost extent of the occlusion balloon. The catheter further includes a fluid discharge port located distal of the occlusion balloon for discharging a lubricious fluid exterior of the elongate shaft toward the stent to facilitate advancing the stent across an occlusion.01-28-2010
20100023108Multiple Drug Delivery From A Balloon And A Prosthesis - Disclosed is an interventional device for delivery of therapeutic agents from an angioplasty balloon and from a prosthesis such as an intraluminal stent. The invention also relates to the method of loading the beneficial agents onto the balloon and the device, as well as the method of delivery of the agents from separate surfaces. The invention also relates to an interventional device having a prosthesis surface that is loaded with a first beneficial agent, and a balloon surface loaded with a second beneficial agent. The invention also relates to a method of loading multiple beneficial agents onto the prosthesis surfaces and the balloon surfaces, and to a method of manufacturing an interventional device for the delivery of a first beneficial agent and a second beneficial agent from separate surfaces.01-28-2010
20110218611DRUG ELUTING STENT AND A GUIDE CATHETER DEVICE ASSEMBLY FOR IMPLANTING THE SAME - The present invention relates to a drug eluting stent for delivering therapeutic agents to a body lumen. The stent includes an expandable substrate configured for implantation in a vessel of a human body and a therapeutic agent composition coated over the stent. The balloon catheter shaft has a resilient unit that helps to transmit a force to the distal end, thereby helping to cross lesions.09-08-2011
20110218610Dilatation and stent delivery system and related methods - The invention relates to a system for dilatation of a body passage and delivery of a stent into the body passage of a patient, and related methods of using such a system. The dilatation and stent delivery system may comprise a dilatation catheter having an expandable member on a distal end, and a stent delivery catheter configured to retain a stent and deliver the stent to a body passage. The stent delivery catheter defines a lumen sized to receive the dilatation catheter and permit movement of the dilatation catheter relative to the stent delivery catheter.09-08-2011
20110218609FILL TUBE MANIFOLD AND DELIVERY METHODS FOR ENDOVASCULAR GRAFT - Some embodiments relate in part to endovascular prostheses and methods of deploying same. Embodiments may be directed more specifically to inflatable stent grafts and methods of positioning and deploying such devices within the body of a patient. Some embodiments include inflation devices and methods that allow an inflatable portion of an inflatable stent graft to be inflated from a desired location within the inflatable portion.09-08-2011
20110218608Vascular Prosthesis Delivery System and Method - A vascular prosthesis delivery system comprises a radially self expandable vascular prosthesis and a delivery sheath with a lumen with a smaller diameter storage region and a larger diameter delivery region. A prosthesis is housed within the storage region and is movable into the delivery region for delivery at a target site within a patient. The delivery force required to move the prosthesis from the delivery region into the patient can be less than the force required to move the prosthesis from the storage region into the delivery region. In some examples, the storage region defines a tapered lumen expanding in diameter in a distal direction. In some examples, the storage and delivery regions are generally coextensive and define a tapered lumen expanding in diameter in a distal direction. A method stores a vascular prosthesis in the storage region and delivers it to a target site from the delivery region.09-08-2011
20110218607Methods of Self-Aligning Stent Grafts - A method for automatic endovascular alignment of a prosthesis includes loading the prosthesis in a distal delivery assembly, positioning a guidewire into a curved implantation site, and threading a guidewire lumen over the guidewire with the delivery assembly and into an implantation site to at least approximately align the curved distal portion to a curve of a curved implantation site and, thereby aligning the prosthesis.09-08-2011
20100016943METHOD OF DELIVERING ADVANCED ENDOVASCULAR GRAFT - A flexible low profile delivery system for delivery of an expandable intracorporeal device, specifically, an endovascular graft, which has at least one belt circumferentially disposed about the device in a constraining configuration. The belt is released by a release member, such as a release wire, by retracting the wire from looped ends of the belt. Multiple belts can be used and can be released sequentially so as to control the order of release and placement of the endovascular graft. An outer protective sheath may be disposed about the endovascular graft while in a constrained state which must first be retracted or otherwise removed prior to release of the graft from a constrained state. The delivery system can be configured for delivery over a guiding device such as a guidewire. The delivery system can also be configured for delivery of bifurcated intracorporeal devices.01-21-2010
20100016942ADVANCED ENDOVASCULAR GRAFT DELIVERY SYSTEM AND METHOD OF TREATMENT - This invention is a system for the treatment of body passageways; in particular, vessels with vascular disease. The system includes an endovascular graft with a low-profile delivery configuration and a deployed configuration in which it conforms to the morphology of the vessel or body passageway to be treated as well as various connector members and stents. The graft is made from an inflatable graft body section and may be bifurcated. One or more inflatable cuffs may be disposed at either end of the graft body section. At least one inflatable channel is disposed between and in fluid communication with the inflatable cuffs.01-21-2010
20100016941MEDICAL DEVICE EMPLOYING LIQUID CRYSTAL BLOCK COPOLYMERS AND METHOD OF MAKING THE SAME - A medical device, at least a portion of which is formed from a polymer composition including at least one liquid crystal block copolymer having at least one A block and at least one B block wherein the A block is a liquid crystal polymer block formed of repeating units comprising mesogenic groups and the B block is a non-liquid crystal polymer block.01-21-2010
20100016938DIAGNOSING, MONITORING AND TREATING INFLAMMATION - The present invention provides methods and compositions for treating chronic inflammatory disease in a subject and associated pharmaceutical compositions, medical devices and systems.01-21-2010
20100010611STENT BASED METHOD AND APPARATUS FOR DIRECTING EXTERNAL BEAM RADIATION THERAPY - A stent based apparatus and method for directing external beam radiation comprising a series of devices and a system of implanting these devices within a patient to direct therapeutic radiation given to the patient. Each of the devices can deliver a tiny gold fiducial (or fiducial constructed of another material capable of acting as a target to direct external beam therapeutic radiation) to a target area in the vicinity of a cancer or other lesion that is considered an appropriate target for external beam radiation therapy, using, for example, the beam radiation system referred to as the Cyberknife radiation delivery system. The current system and devices envision placement of gold fiducials through hollow organs in the body (for example, the gastrointestinal tract, the ureter, blood vessels, bile duct, or the cerebro spinal fluid space). This implantation method can utilize conventional endoscopy or angiography.01-14-2010
20090281609TWO-STEP HEART VALVE IMPLANTATION - A two-part implantable heart valve and procedure are disclosed that allow expansion and positioning of a first part of the implantable heart valve having a temporary or transient valvular structure. A second part of the implantable heart valve is deployed within the first part and attaches thereto. The valvular structure of the second part then acts to function as the heart valve replacement. A tool or system is provided for determining an adequate percutaneous heart valve size for a given stenotic valve. A balloon can be inflated inside the stenotic valve to a desired pressure. When this pressure is reached an angiographic image is taken and the balloon diameter is measured at a waist area created by contact between the balloon and the stenotic valve. The diameter represents the minimum percutaneous heart valve diameter to be implanted.11-12-2009
20100292773BALLOON EXPANDABLE CRUSH-RECOVERABLE STENT DEVICE - An intraluminal, balloon expandable stent for implantation in a body lumen is disclosed. The present invention provides a lumen support stent with an unobstructed through-lumen for use in a blood vessel. A constraining mechanism is provided for securely maintaining the stent in the collapsed condition during delivery. The stent is preferably formed with a series of interconnected slide and lock mechanisms for permitting movement from a collapsed condition to an expanded condition and inhibiting radial recoil from the expanded condition. The stent may be formed from a shape memory alloy for providing crush-recovery after deployment.11-18-2010
20080281396GUIDE WIRE AND STENT - A guide wire includes a distal core member made of a ferrous alloy which has shape memory properties and superelasticity. The ferrous alloy preferably includes substantially two phases, and has a difference of 100° C or less between an Af point and an Ms point in a thermal hysteresis of martensitic transformation and reverse transformation. The guide wire may include a proximal core member made of an iron-containing alloy and having a higher modulus of elasticity than the distal core member. The two core members may be joined together by welding to form a core of the guide wire.11-13-2008
20110046712LOADING APPARATUS AND SYSTEM FOR EXPANDABLE INTRALUMINAL MEDICAL DEVICES - Medical device loading apparatuses, systems, methods and kits are described. A loading apparatus comprises a main body having a proximal end defining a proximal opening, a distal end defining a distal opening, and a passageway extending between the proximal and distal openings. The passageway defines a proximal chamber having a first inner diameter, a distal chamber having a second inner diameter, and a transition chamber disposed between the proximal and distal chambers. The transition chamber has an inner diameter that transitions from the larger second inner diameter to the smaller first inner diameter. The main body has a separable connection that divides the main body between proximal and distal portions when disrupted. An expandable intraluminal medical device can be loaded into a delivery catheter using the loading apparatus by placing the device into the passageway such that it is in a radially-expanded configuration; pulling the device along an axial path through the loading apparatus such that the device transitions from the radially-expanded configuration to a radially-compressed configuration; and pushing the radially-compressed device along the axial path into the delivery catheter.02-24-2011
20110307049BI-DIRECTIONAL STENT DELIVERY SYSTEM - A bi-directional stent delivery system includes an inner elongate shaft, a radially expandable prosthesis disposed over the inner elongate shaft, an outer elongate shaft, and a shuttle sheath disposed over the radially expandable prosthesis. The distal portion of the inner shaft is releasably coupled to the distal portion of the shuttle sheath, and the distal portion of the outer shaft is releasably coupled the proximal portion of the shuttle sheath. Distal advancement of the inner shaft advances the shuttle sheath distally when the outer shaft is uncoupled from the shuttle sheath, thereby allowing the prosthesis to radially expand from a proximal end to a distal end. Proximal retraction of the outer shaft retracts the shuttle sheath proximally when the inner shaft is uncoupled from the shuttle sheath, thereby allowing the prosthesis to radially expand from a distal end to a proximal end thereof.12-15-2011
20110307046SELECTIVE STENT CRIMPING - Methods for crimping a stent on an expandable member of a delivery catheter, and devices and methods for treating a bifurcation are disclosed. A method for crimping includes positioning a stent having a first portion and a second portion over the expandable member, and non-uniformly crimping the stent to the expandable member. The method can include routing an elongate shaft under the second portion of the stent and through the side hole so as to be routed external to the first portion. The stent second portion can be crimped so that the elongate shaft can be slidably disposed relative to the stent second portion prior to deployment of the stent.12-15-2011
20110307044METHODS AND SYSTEMS FOR OSTIAL STENTING OF A BIFURCATION - A system for treating a bifurcation includes first and second delivery catheters, each having an expandable member. A stent having a side hole is disposed on the second delivery catheter. A portion of the first delivery catheter is disposed under a portion of the stent. The first delivery catheter is slidable relative to the second delivery catheter, and the first delivery catheter passes through the side hole. Expansion of the first expandable member expands a proximal portion of the stent in a main branch vessel, and expansion of the second expandable member expands a distal portion of the stent in a side branch vessel.12-15-2011
20110307045METHODS AND SYSTEMS FOR TREATING A BIFURCATION WITH PROVISIONAL SIDE BRANCH STENTING - A system for treating a bifurcation includes first and second delivery catheters, each having an expandable member. A stent having a side hole is disposed on the second delivery catheter. A portion of the first delivery catheter is disposed under a portion of the stent. The first delivery catheter is slidable relative to the second delivery catheter, and the first delivery catheter passes through the side hole. Expansion of the first expandable member expands a portion of the stent and expansion of the second expandable member expands the rest of the stent.12-15-2011
20090248130NITINOL ALLOY DESIGN AND COMPOSITION FOR VASCULAR STENTS - A stent and a delivery system for implanting the stent in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element in order to minimize the stress hysteresis of the superelastic material. The stress hysteresis is defined by the difference between the loading plateau stress and the unloading plateau stress of the superelastic material. The resulting delivery system has a small profile and includes a sheath covering the stent that has a thin wall.10-01-2009
20120041537INTRODUCER APPARATUS - A stent introducer apparatus comprises a sheath for surrounding a stent member, with the sheath having a longitudinal slit extending from one end along at least a substantial part of the length thereof, and a sheath withdrawal device comprising a reel for winding up the sheath. A second sheath may surround the slit portion of the sheath. An intermediate guide member can smooth the withdrawal procedure and flatten the sheath before it is wound on the reel. The intermediate guide member may include at least one of a second reel or a slot-defining member. The reel may be operated by means of a gear system. A method of deploying a stent member is also provided.02-16-2012
20120041535PRECANNULATED FENESTRATION - Devices for delivering and deploying an endoluminal prosthesis are disclosed and comprise a delivery catheter, an endoluminal prosthesis disposed at a distal end portion of the delivery catheter, and a wire. The prosthesis comprises a tubular graft having at least one fenestration. The wire extends distally from a first wire end through an axial lumen of the delivery catheter and the prosthesis, and through the fenestration in the graft. The wire extends proximally through a lumen of the prosthesis and through an axial lumen of the delivery catheter towards a second wire end. Additional devices, systems, and methods are disclosed.02-16-2012
20110112623System and Method for Placing a Coronary Stent at the Ostium of a Blood Vessel - A system and method are provided that use a balloon/stent catheter for placing a stent at the ostium of a blood vessel. Included is a barrier member that is attached to the catheter at a location proximal the balloon. In use, the barrier member is reconfigured, prior to insertion of the balloon/stent portion of the catheter through the ostium. With this reconfiguration, a barrier (array) is established that limits advancement of the catheter into the blood vessel to ensure proper placement of the stent at the ostium.05-12-2011
20100262217Precise Positioning Prosthesis Delivery System and Method - A method of prosthesis delivery comprises advancing first, second and third guidewires through a first vessel, positioning the second guidewire in a second vessel that branches from the first vessel, positioning the third guidewire in a third vessel that branches from the first vessel, advancing a prosthesis over the first, second, and third guidewires to the vicinity of one of the second and third vessels, and deploying the prosthesis. The prosthesis can comprise a tubular stent-graft having a first eyelet adapted to receive a guidewire and a second eyelet adapted to receive a guidewire. A prosthesis delivery system comprises prosthesis delivery apparatus comprising a sheath, a prosthesis having a plurality of eyelets and being disposed in the sheath, a first guidewire tube for receiving a first guidewire and being positioned inside the prosthesis; a second guidewire tube for receiving a second guidewire and being positioned inside the prosthesis, and a third guidewire tube for receiving a third guidewire and being positioned inside the prosthesis.10-14-2010
20100324647STENT-GRAFT SECUREMENT DEVICE - A stent attachment and deployment mechanism is utilized to prevent the distal end of an endoprosthesis comprising fixation barbs or other fixation mechanism from deploying prior to the remaining sections of the fixation device. With this stent attachment and deployment mechanism accurate deployment may be achieved.12-23-2010
20120041534STENT DELIVERY SYSTEM WITH INTEGRATED CAMERA - Various methods and devices are described for imaging a body lumen during delivery and deployment of a medical device. In one example, a delivery device includes at least one sheath, a prosthesis, an inner tubular member and at least two cameras to allow visualization of the prosthesis prior, during and after deployment without the use of an endoscope. The at least one sheath and/or the inner tubular member includes at least two cameras engaged to the delivery device.02-16-2012
20120041533STENT DELIVERY DEVICE - Various methods and devices are described for imaging a body lumen during delivery and deployment of a medical device. In one example, a delivery device includes at least one sheath, a stent, an inner tubular member and at least one imaging device to allow visualization of the stent prior, during and after deployment without the use of an endoscope. The inner tubular member includes an articulating portion with the imaging device integrally formed and embedded therein.02-16-2012
20120041532VACUUM ASSIST DELIVERY SYSTEM - A delivery system for self-expanding medical devices is provided. The delivery system includes seals around an inner catheter. The self-expanding medical device may be mounted on the seals to define an open space between the seals and the inner surface of the medical device and the exterior of the inner catheter. Vacuum pressure may be applied to the open space to reduce friction between the exterior surface of the self-expanding medical device and the inner surface of an outer catheter.02-16-2012
20120041536INTRODUCER ASSEMBLY - An introducer assembly (02-16-2012
20100114289Method and associated device for positioning a stent deployed to support a vessel - A method for positioning a stent able to be deployed to support a vessel in a blood vessel, especially in the cardiology, with the stent after its provisional placement in a not yet deployed state in an area intended for the support of the vessel, being at least partly automatically deployed as a function of at least one triggering signal for final positioning in the blood vessel.05-06-2010
20090024199Controlled Porosity Stent - A method of manufacturing a stent includes forming a stent blank including a predetermined alloy composition, the alloy composition including at least base element and at least one sacrificial element and forming a stent framework from the stent blank. The method further includes removing at least a portion of the sacrificial element and forming at least one pore based on the removal. A method of manufacturing a vascular treatment system includes forming a stent blank including a predetermined alloy composition including at least one base element and at least one sacrificial element. The method further includes forming a stent framework and removing at least a portion of the sacrificial element. The method also includes forming at least one pore based on the removal, bending the stent framework to a delivery shape, and attaching the bent stent framework including the formed pores to a catheter.01-22-2009
20090287292Braid Implant Delivery Systems - Embolic implants delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm and/or fistula treatment. The designs offer low profile compressibility for delivery to neurovasculature, while maintaining advantageous delivery and implant detachment control features.11-19-2009
20090143850ENDOPROSTHESIS AND DELIVERY SYSTEM FOR ITS PLACEMENT WITHIN A PATIENTS VESSEL AND USES FOR THIS ENDOPROSTHESIS AND DELIVERY SYSTEM - The present invention relates to an endoprosthesis composed of (a) two complementary bodies, body “A” and (b) a body “B”, with the said bodies being formed by proximal, intermediate and distal regions and comprising a self-expanding structure of resistant and flexible material and a graft wherein the said bodies “A” and “B” have a bifurcation for use where a main vessel bifurcates into at least two secondary branches, such as in the case of the treatment of aneurysms in the abdominal aorta.06-04-2009
20090299453STENT CRIMPING DEVICE - A crimping fixture for crimping a stent onto a balloon of a catheter is disclosed. The crimping fixture includes a flexible elastomeric body having a crimping lumen and one or more inflation lumens extending through the flexible elastomeric body. The flexible elastomeric body is elastically stretched such that a pre-crimped stent may be placed in the crimping lumen. The inflation lumens are then pressurized with a fluid to impart an inward crimping force onto the stent to crimp the stent to a balloon.12-03-2009
20120209366STENT AND STENT DELIVERY SYSTEM - A stent includes a plurality of annular bodies arrayed in an axial direction, each having a plurality of one-end-side bent sections and other-end-side bent sections, and adjacent ones of the annular bodies being linked by link sections. The stent includes at least three kinds of link sections selected from four kinds of link sections including: a vertex-vertex bent link section; a central part-central part bent link section; a central part-vertex bent link section; and a vertex-central part bent link section, the at least three kinds of the link sections including at least the vertex-vertex bent link section and the central part-central part bent link section, and the adjacent annular bodies being linked by at least two different kinds of the link sections08-16-2012
20120209367BIFURCATION CATHETER DUAL BALLOON BOND AND METHODS - A catheter assembly includes a main catheter branch having a catheter shaft and a distal end portion. A main balloon and a side balloon are positioned at the distal end portion of the catheter shaft. The main balloon includes a distal waist portion at a distal end thereof and a proximal waist portion at a proximal end thereof. The side balloon includes an inflatable portion, a proximal waist portion, and a distal waist portion, wherein the proximal and distal waist portions define a side inflation lumen. The proximal waist portion of the side balloon and the proximal waist portion of the main balloon are secured to the distal end portion of the catheter shaft at a single bond or connection point to create a proximal balloon joint, wherein the main inflation lumen is in fluid communication with the main balloon and the side inflation lumen.08-16-2012
20090088830SYSTEM AND METHOD FOR INTRAOPERATIVE GUIDANCE OF STENT PLACEMENT DURING ENDOVASCULAR INTERVENTIONS - A method for guiding stent deployment during an endovascular procedure includes providing a virtual stent model of a real stent that specifies a length, diameter, shape, and placement of the real stent. The method further includes projecting the virtual stent model onto a 2-dimensional (2D) DSA image of a target lesion, manipulating a stent deployment mechanism to navigate the stent to the target lesion while simultaneously acquiring real-time 2D fluoroscopic images of the stent navigation, and overlaying each fluoroscopic image on the 2D DSA image having the projected virtual stent model image, where the 2D fluoroscopic images are acquired from a C-arm mounted X-ray apparatus, and updating the projection of the virtual stent model onto the fluoroscopic images whenever a new fluoroscopic image is acquired or whenever the C-arm is moved, where the stent is aligned with the virtual stent model by aligning stent end markers with virtual end markers.04-02-2009
20120232640NARROW PROFILE COMPOSITION-RELEASING EXPANDABLE MEDICAL BALLOON CATHETER - The present invention relates to a composition-eluting balloon catheter (09-13-2012
20090299459SCORED CATHETER DEVICE - A catheter device including an elongate tubular shaft having a consistent material composition for a substantial proportion of its length. The device includes a proximal shaft portion having a first flexibility and a distal shaft portion having a second flexibility, wherein the second flexibility is greater than the first flexibility and wherein at least the distal shaft portion comprises at least one score in a surface thereof. The device includes a wholly external wire guide structure secured to the tubular shaft by a figure-eight polymer sleeve.12-03-2009
20110166636Method and Apparatus for Replacing a Prosthetic Valve - In one aspect, the present disclosure concerns a percutaneously delivered adapter stent that is deployed within a previously implanted prosthetic valve and serves as an anchor or platform for implanting a percutaneously delivered replacement valve within the previously implanted valve. The adapter stent can be delivered to the implantation site via the patient's vasculature and positioned within the previously implanted valve. The stent can then be deployed to cause the stent to expand and become anchored to the inner surface of the previously implanted valve. Subsequently, the replacement valve can be positioned within the adapter stent and deployed to cause the replacement valve to expand and become anchored to the adapter stent. The adapter stent and the replacement valve can be mounted on the same catheter for delivery to the implantation site.07-07-2011
20120116491OCCLUSION CROSSING DEVICE AND METHOD - A stent delivery catheter for positioning a stent across a lesion of a blood vessel is disclosed. The catheter includes an inflation balloon coupled to a distal region of the elongate shaft of the catheter and a stent loaded on the inflation balloon. The catheter may also include an occlusion balloon having a proximal waist secured to the elongate shaft and a distal waist secured to the elongate shaft. The occlusion balloon includes a first folded-over portion extending distal of the distal waist to a distalmost extent of the occlusion balloon and a second folded-over portion extending proximal of the proximal waist to a proximalmost extent of the occlusion balloon. The catheter further includes a fluid discharge port located distal of the occlusion balloon for discharging a lubricious fluid exterior of the elongate shaft toward the stent to facilitate advancing the stent across an occlusion.05-10-2012
20120116490BALLOON CATHETER, IN PARTICULAR FOR DELIVERING DRUGS OR STENTS IN THE REGION OF A STENOSIS - A balloon catheter, in particular for delivering medicaments, stents or medicament-coated stents in the region of a stenosis, comprising 05-10-2012
20120016457BARBED RADIALLY EXPANDABLE STENT WITH SLOTTED STRUTS - The present application is directed to a stent, and more particularly, a radially expandable stent including a proximal end, a distal end, a plurality of struts and a plurality of apices at each of the proximal and distal ends; a barb integrally formed as an extension on at least one strut and extending outwardly from a position on each strut; and at least one slot formed as an opening through at least one of the struts, where at least one of the proximal and distal apices are curved apices.01-19-2012
20120016456Stent Graft Delivery System - A system for treating an aneurysm comprises an elongate flexible shaft and an expandable member. An expandable scaffold is disposed over the expandable member and may be expanded from a collapsed configuration to an expanded configuration. A double-walled filling structure is disposed over the scaffold and has an outer wall and an inner wall. The filling structure is adapted to be filled with a hardenable fluid filing medium so that the outer wall conforms to an inside surface of the aneurysm and the inner wall forms a substantially tubular lumen to provide a path for blood flow. In the expanded configuration the scaffold engages the inner wall of the filling structure. A tether is releasably coupled with the filling structure and the flexible shaft thereby constraining axial movement of the structures relative to each other.01-19-2012
20120016455Stent and other object removal from a body - This disclosure contains methods, devices, and systems for object removal from a body, including removal of a stent from a body. Some methods of the present disclosure include inflating a balloon on a catheter, engaging a stent with a socket defined by a surface of the balloon, the surface inwardly sloped toward a lumen of the catheter, and retracting a portion of the stent through the socket and into the lumen. The present disclosure also includes methods for making a catheter, including forming a balloon, inverting a portion of the balloon, and attaching the balloon to a catheter such that a surface of the balloon defines a socket that is inwardly sloped toward a lumen of the catheter.01-19-2012
20120016454DELIVERY SYSTEM FOR SIMULTANEOUS DEPLOYMENT OF INTRALUMINAL DEVICE - A medical device delivery system includes a retention sheath having a proximal portion and a bi-furcated distal portion having first and second sheath branch portions. The proximal ends of the sheath branch portions are joined together at a sheath branch junction. The system also includes an inner catheter disposed within the retention sheath. The inner catheter includes a proximal portion and a bi-furcated distal portion with first and second catheter branch portions. The proximal ends are joined together at a catheter branch junction. When the sheath is in an initial position, the catheter branch junction is displaced proximally from the sheath branch junction by a distance that is greater than or equal to the larger of a length of a first medical device and the length of a second medical device.01-19-2012
20130013047STENT DELIVERY SYSTEM - Stent delivery systems and methods for making and using the same are disclosed. An example stent delivery system may include an inner member having a proximal end. A sleeve may be coupled to the inner member adjacent to the proximal end. A deployment sheath may be disposed about the inner member. A gear rack assembly may be coupled to the deployment sheath. A stent may be disposed between the inner member and the deployment sheath. A handle may be coupled to the inner member and to the deployment sheath. The handle may include an actuation member. The actuation member may be coupled to the gear rack assembly so that actuation of the actuation member shifts the longitudinal position of the gear rack assembly and the deployment sheath. An engagement mechanism may be coupled to the gear rack assembly.01-10-2013
20120022630CATHETER SHEATH FOR IMPLANT DELIVERY - There is disclosed herein a tube of material (01-26-2012
20120022633RETAINING MECHANISMS FOR PROSTHETIC VALVES - Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support structure and an expandable prosthetic valve are advanced through the aortic arch of a patient using a delivery system. The support structure is delivered to a position on or adjacent to the surface of the outflow side of the aortic valve (the support structure defining a support-structure interior). The expandable prosthetic valve is delivered into the aortic valve and into the support-structure interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the aortic valve, thereby causing one or more native leaflets of the aortic valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.01-26-2012
20120022634MEDICAL DEVICES WITH AMORPHOUS METALS AND METHODS THEREFOR - Medical devices made at least in part of amorphous metals or alloys are provided. Certain embodiments include filters, stents, guidewires, snares, and coils comprised of amorphous metal. Methods of forming the medical devices, including methods of shape setting amorphous metals or alloys into components of medical devices are also provided. Methods of using amorphous metal medical devices are also provided.01-26-2012
20120022632Extendable Flushing System - An extendable flushing system, a delivery system including an extendable flushing system and a method of flushing a delivery system are provided. The extendable flushing system includes flexible tubing having an extended configuration and a compressed configuration, a first tubing end and a second tubing end. The extendable flushing system also includes a flush port and a shuttle assembly. The flush port includes a first lumen operably connected to the first tubing end and an opening configured to receive fluid therethrough. The shuttle assembly is operably connected to the second tubing end forming a fluid flow path with the flush port and the shuttle assembly. The shuttle assembly is configured to be fluidly connected to a lumen of an elongate device. The shuttle assembly is movably positionable relative to the flush port and configured to move the flexible tubing between the compressed configuration and the extended configuration.01-26-2012
20120022631Control System for a Stent Delivery System - A control system for controlling movement of a stent delivery system, a stent delivery system and a method for controlling movement of a stent delivery system are provided. The control system includes a housing having a chamber formed therein, a first drive at least partially positioned within the housing and operably connected to the first shaft of the delivery system and a second drive at least partially positioned within the housing and operably connected to the second shaft. The control system also includes a pressure controller operably connected to the housing and configured to change the pressure within the chamber. The first drive and the second drives are movable in response to the pressure change within the chamber and movement of the second drive relative to the first drive causes the second shaft to move relative to the first shaft to expand or constrain a stent operably connected thereto.01-26-2012
20120022629INFLATION MEDIA FOR IMPLANTS - An inflatable implant is disclosed. The inflatable implant comprises at least one inflation channel for forming an inflatable structure of the inflatable implant; and an inflation media disposed within the at least one inflation channel, wherein the inflation media comprises a mixture of an epoxy resin and a hardener, the mixture is configured to gel at about 37° C. in less than about 2.5 hours after mixing to form a gelled mixture.01-26-2012
20120022628Attachment Mechanism for Stent Release - An attachment mechanism for coupling a stent to a delivery system is disclosed. The attachment mechanism is configured to pivot relative to an inner shaft assembly of the delivery system in order to release the stent from the delivery system.01-26-2012
20090018635STENT PROTECTOR - A method for providing a catheter assembly with a protective sleeve for a stent delivery system wherein the protective sleeve has a removable portion that is removed from about the stent before the system is inserted into a patient, and the protective sleeve made thereby.01-15-2009
20080243222HIGH FLEX INTRODUCER ASSEMBLY - An introducer assembly for accessing a target site in the anatomy of a patient includes a sheath having a proximal end and a distal end, and having a lumen extending therethrough. At least a portion of the sheath distal end has a curved configuration. A tapered dilator has a proximal end and a distal end, and is sized to be received in the sheath lumen. The dilator has a length such that at least a distal tip portion of the dilator extends beyond the distal end of the sheath when the dilator is received in the sheath lumen. The dilator may be formed of polyurethane, and has a stiffness not exceeding a stiffness of the sheath curved portion such that the sheath substantially maintains the curved configuration when the dilator is received in the sheath lumen.10-02-2008
20120059447Stent Deployment Device - A stent deployment device (03-08-2012
20110060397METHOD OF LOADING A STENT INTO A SHEATH - There is disclosed herein a method of loading a self-expanding stent (03-10-2011
20120158117Handle Control System for a Stent Delivery System - A control system for controlling movement of a medical device delivery system, a stent delivery system and a method for controlling movement of a medical device delivery system are provided. The control system includes a rotatable gear operably connected to a first movable member and a second movable member movable by the rotatable gear. The first movable member is operably connected to the first shaft and the second movable member operably connected to the second shaft. The first movable member moves the first shaft and the second movable member moves the second shaft to change a position of the first shaft relative to the second shaft and to change a configuration of a medical device operably connected to the first shaft and the second shaft.06-21-2012
20110093056Use of Plasma in Formation of Biodegradable Stent Coating - Metallic stents are treated with a gaseous species in a plasma state under conditions causing the species to polymerize and to be deposited in polymerized form on the metallic stent surface prior to the application of a drug-polymer mixture, which is done by conventional non-plasma deposition methods. The drug-polymer mixture once applied forms a coating on the stent surface that releases the drug in a time-release manner and gradually erodes, leaving only the underlying plasma-deposited polymer. In certain cases, the plasma-deposited polymer itself erodes or dissolves into the physiological medium over an extended period of time, leaving only the metallic stent. While the various polymers and drug remain on the stent, the plasma-deposited polymer enhances the adhesion of the drug-polymer anchor coating and maintains the coating intact upon exposure to the mechanical stresses encountered during stent deployment.04-21-2011
20110093055STENT WITH SEGMENTED GRAFT - A stent-graft comprising an expandable stent and a plurality of graft segments, each graft segment having a first end attached to the stent and a second end not attached to the stent. In one embodiment, the plurality of overlapped graft segments form a continuous conduit wherein each overlap between axially adjacent graft segments comprises a fluid-tight seal when the stent in the radially expanded configuration sandwiches the graft segments against a wall of a body lumen. In another embodiment, there are one or more discontinuities in the plurality of graft segments. The discontinuities may be aligned with branch lumens. The graft segments may be cut perpendicular to the stent-graft axis, or on a bias. A delivery system for and method of deploying the stent-graft are also claimed.04-21-2011
20120158115APPARATUS AND METHOD FOR DEPLOYING AN IMPLANTABLE DEVICE WITHIN THE BODY - The present invention provides systems and methods for deploying implantable devices within the body. The delivery and deployment systems include at least one catheter or an assembly of catheters for selectively positioning the lumens of the implant to within target vessels. Various deployment and attachment mechanisms are provided for selectively deploying the implants.06-21-2012
20120065719MEDICAL DEVICE SHIELD AND METHODS FOR DELIVERING A MEDICAL DEVICE - Device shields for packaging and protecting medical devices during storage and deployment. A device shield includes a body or housing configured to maintain a medical device and at least a portion of a medical device delivery apparatus within the body or housing, and a limit element having a first constraining position and a second open position.03-15-2012
20120158119STENT FOR PLACEMENT IN LIVING BODY AND STENT DELIVERY SYSTEM - A stent for placement in living body is substantially in a tubular form and includes a plurality of wave-shaped struts extending in the axial direction from one end to the other of the stent. The axially-extending wave-shaped struts are arranged in a circumferential direction, and connection struts interconnect the respective circumferentially adjacent wave-shaped struts. The circumferentially adjacent wave-shaped struts include a plurality of closer sections and farther sections. The connection struts interconnect between the closer sections of adjacent wave-shaped struts, and each has at the center thereof a bent portion extending in the axial direction of the stent.06-21-2012
20120158118IMPLANTABLE PROSTHETIC VALVE WITH NON-LAMINAR FLOW - A valve prosthesis device and methods for deployment is disclosed. The device comprises an expandable support stent and a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet. Flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, but reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly. The device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing. The device can be deployed in a native heart valve position using a deployment catheter advanced through a body lumen such as a blood vessel, including an aorta.06-21-2012
20100121426Stent Introducer System - A stent delivery system for positioning a first and second stent the first and second branch lumens of a bifurcation. The stent delivery system includes stent introducers and a sheath or catheter having a frangible wall. A method of delivering stents to anatomies such as bifurcated ducts or vessels.05-13-2010
20120158116Means and Method for Preventing Embolization of Drug Eluting Stents - A balloon disposed near a distal end of the catheter tubing and moving between deflated and inflated states, and proximal and distal stent retention bands concentrically arranged around respective proximal and distal end portions of the balloon. The proximal stent retention band has a distal end located within 2 mm of the proximal end of a stent coaxially received by the balloon and the distal stent retention band has a largest diameter within 2 mm of the distal end of the stent received by the balloon.06-21-2012
20100198328Preloaded Stent Graft Delivery Device - A multi-port stent graft delivery device (08-05-2010
20110066221HYBRID INTRALUMINAL DEVICE - An intraluminal device has a tubular main body and a plurality of expandable wireforms. The wireforms are grouped in a first group of one or more self expandable wireforms and a second group of one or more pressure expandable wireforms and arranged in alternating groups of wireforms comprising the first group and the second group. Also described is an intraluminal device for positioning within a branched vessel of a patient having an elongate main body and a branch portion. The branch portion is independently moveable relative to the main body.03-17-2011
20110106235METHOD AND APPARATUS FOR DEPLOYMENT OF AN ENDOLUMINAL DEVICE - An introducer deploys an endoluminal device in a distal location from a proximal location. The introducer comprises a retrograde portion, an anterograde portion axially moveable relative to the retrograde portion, a shaft having a distal tip and an anterograde sheath attached to the distal tip, and anchoring means in at least one of the retrograde portion or the anterograde portion for anchoring the device during deployment from its proximal end to its distal end. An inner sheath may be mounted concentrically over the shaft with the endoluminal device mounted concentrically over the inner sheath. The anchoring device may comprise an inflatable balloon mounted radially inside the retrograde portion, a tether, or an extended portion of the endoluminal device confined by a notch in the interface of two sheaths in the retrograde portion of the introducer, or may comprise a holder in the anterograde portion.05-05-2011
20110106234INTERLUMINAL MEDICAL TREATMENT DEVICES AND METHODS - An interluminal medical treatment device configured to treat a targeted treatment site within a body lumen is provided. The interluminal medical treatment device can include an elongated generally tubular outer member. The outer member can include an expandable distal portion, an expandable proximal portion, and a central portion of limited expandability. The interluminal medical treatment device can include at least one membrane. The outer member and at least one membrane may define a housing area positioned between the proximal portion and distal portion of the outer member. The outer member and at least one membrane can be configured to redirect fluid flow within a body lumen away from the housing area inner member or inner passageway.05-05-2011
20100016939Vascular Prosthesis for the Treatment of Abdominal Aortic Aneurysms Using A Combined Laparoscopic/Open and Endovascular Technique, and Delivery System For Releasing A Prosthesis Fitted With Anchoring Stents - A method for releasing an aortic prosthesis includes positioning an introducer in femoral arteries of a patient. Guiding balloon catheters are positioned through the introducers to locate balloons thereof in terminal parts of common iliac arteries. The proximal aorta is clamped, balloons of the guiding catheters are inflated, and the aorta is opened for outside access. Distal ends of releasing balloon catheters are threaded through the guiding catheters and are recovered outside the patient through the introducers. Distal ends of the releasing catheters are connected to distal portions of the prosthesis, which is moved by the catheters until distal portions thereof contact the guiding catheters. The proximal part of the prosthesis is sutured to the aorta. The balloons of the releasing catheters are inflated to fix the distal portions of the prosthesis. Balloons are deflated, catheters are removed, the aorta is sutured, and the introducers are removed.01-21-2010
20100094398Rolling Membrane with Hydraulic Recapture Means for Self Expanding Stent - A medical device comprising a catheter having a retractable outer sheath and a rolling membrane. The catheter includes a catheter inner shaft about which a stent in a reduced diameter configuration may be disposed. A stent retaining region of the sheath is disposed about the stent to retain the stent in the reduced diameter state prior to delivery. The rolling membrane is engaged to a portion of the outer sheath at an engagement region. The rolling membrane is positioned between the catheter inner shaft and the outer sheath and prior to retraction of the sheath the rolling membrane is disposed about at least a proximal section of the stent and is rollingly retracted therefrom when the sheath is retracted to deliver the stent. The device also recaptures a stent by pressurizing a intra-catheter space, which results in the longitudinal movement of the outer sheath in a distal direction to recover and retain the stent.04-15-2010
20100094400Devices, systems, and methods for prosthesis delivery and implantation - Devices, systems, and methods use a catheter device sized and configured for introduction to a targeted site in a hollow body organ or blood vessel. The catheter device includes a first release mechanisms coupled to the prosthesis to secure at least one region of the prosthesis to the catheter shaft, and a second release mechanism coupled to the prosthesis in cooperation with the first release mechanism to prevent full release of the at least one region of the at least one region of the prosthesis from the catheter shaft after actuation of the first release mechanism. A fastening device sized and configured for introduction to the targeted site in the hollow body organ or blood vessel occupied by the catheter device, includes an actuator to deploy a fastener in the at least one region of the prosthesis after actuation of the first release mechanism and before actuation of the second release mechanism.04-15-2010
20100094397Method of Implanting a Transmyocardial Stent - According to an aspect of the invention there is provided a method and apparatus for delivering a medical stent to a treatment site for forming a conduit between a blood vessel and a heart chamber. The apparatus comprises a hollow cylindrical body having a proximal end and a distal end, the stent being positioned within the body; and an actuator for expelling the stent from the body to form the conduit.04-15-2010
20100094395VASO-OCCLUSIVE COIL DELIVERY SYSTEM - An occlusive coil delivery device includes an occlusive coil having a plurality of windings with the proximal end having a plurality of open pitched windings, and a delivery wire assembly having a proximal tubular portion and a distal coil portion with a lumen extending at least partially through the assembly, the assembly including a delivery wire forming a first conductive path extends through the lumen from a proximal end of the delivery wire assembly to a location distal with respect to the distal coil portion, the distal extension including a sacrificial detachment zone. The delivery wire assembly further includes a second conductive path formed by the proximal tubular portion and distal coil portion, with the delivery device further including a delivery wire adapter having a proximal end and a distal end, the distal end of the adapter comprising a plurality of fingers configured to interface between adjacent open pitched windings of the proximal end of the occlusive coil, with the proximal end of the delivery wire adapter secured to a distal portion of the delivery wire.04-15-2010
20100094391STENT SUITABLE FOR DEPLOYMENT IN A BLOOD VESSEL04-15-2010
20100094393LOCKING DEVICE FOR ENDOLUMINAL PROSTHESIS DELIVERY SYSTEM - A locking device for preventing movement of an elongated instrument includes a tubular base that has an outer surface and an inner surface. At least one lateral opening extends through the tubular base from the outer surface through the inner surface. At least one rocker arm is mounted to the base. Each of the rocker arms has a locking projection that extends radially inwardly aligned with one of the lateral openings of the base. An actuating member is rotatable relative to the base portion between first and second positions. In the first position the actuating member engages the rocker arm to urge the locking projection radially inward through the lateral opening and beyond the inner surface of the tubular base. Movement of the actuating member to the second position causes the locking projection to move radially outward through at least a portion of the lateral opening.04-15-2010
20100094396CATHETER HAVING AN APPLICATOR DEVICE FOR LIQUID ACTIVE SUBSTANCES - The invention relates to a catheter, in particular an endovascular catheter, having an applicator device for liquid active substances for applying same to an active substance storage zone mounted on the catheter.04-15-2010
20090132020SECUREMENT ASSEMBLY AND METHOD FOR EXPANDABLE ENDOVASCULAR DEVICE - A securement assembly for releasably securing an expandable stent or stent-graft relative to a delivery tube. The securement assembly comprises a belt base configured for securement relative to the delivery tube. The belt base defines a release member passage and a receiving portion. A first end of a belt is fixed relative to the belt base. The opposite end of the belt includes a retainment portion configured to releasably engage the receiving portion of the belt base. A release member is removably positioned through the release member passage and aligned with the belt retainment portion such that the retainment portion is maintained engaged with the receiving portion until the release member is moved to a non-aligned position. A method of releasably securing a portion of an expandable stent or stent-graft relative to a delivery tube is also provided.05-21-2009
20090132019Bifurcate Stent Delivery Catheter - A bifurcate stent delivery catheter is disclosed that includes a proximal shaft and two distal shaft branches having a bifurcated stent mounted thereon, wherein one or more conventional balloon catheters may be advanced within lumens of the bifurcate catheter to deploy the bifurcated stent. Since no balloons are mounted on the bifurcate catheter, the clinician may use any combination of balloon sizes for deploying various portions of the bifurcated stent and thus custom-select appropriate balloon sizes to best treat the bifurcation. Once a conventional balloon catheter is positioned within a distal shaft branch of the bifurcate stent delivery catheter, each of the distal shaft branches of the bifurcate catheter are constructed to split or otherwise expand in a controlled manner upon expansion of the balloon catheter in order to allow the bifurcated stent to be expanded or deployed.05-21-2009
20120123511PROSTHESIS DEPLOYMENT SYSTEM FOR VASCULAR REPAIR - A deployment system for vascular repair of a transected body vessel is provided. The system can include a prosthesis, an inner sheath, and an outer sheath. The inner sheath can be configured to selectively retain a first portion of the prosthesis in the compressed configuration, leaving a remaining portion of the prosthesis uncovered by the inner sheath. The outer sheath can be configured to retain the remaining portion of prosthesis in the compressed configuration and the first portion of the prosthesis within the inner sheath. The outer sheath is removable from the prosthesis to allow an expansion of the remaining portion of the prosthesis to the expanded configuration at a first opening in the transected vessel. The inner sheath is removable from the prosthesis first portion to allow an independent expansion of the first portion to the expanded configuration at a second opening in the transected vessel.05-17-2012
20100249896STENT DELIVERY SYSTEM - A stent delivery system includes a stent formed in a substantially hollow cylindrical shape and compressed toward its center axis when inserted in vivo, with the stent being capable of restoring its pre-compression shape through outward expansion when left indwelling in vivo. The stent delivery system also includes an inner tube possessing a guide wire lumen, and a stent accommodating tube having a distal portion accommodating the stent. The stent is disposed as to cover a distal portion of the inner tube, and the stent is adapted to be exposed by moving the stent accommodating tube toward the proximal side relative to the inner tube.09-30-2010
20100249894PROSTHETIC HEART VALVE SYSTEM - An exemplary two-stage prosthetic heart valve system has a radially expandable base stent implanted within a native valve annulus. The two-stage heart valve system also has a valve component that is delivered to and mounted within the base stent in a separate or sequential operation after the base stent has been anchored within the annulus. The valve component in certain embodiments comprises a hybrid valve component that includes a conventional, non-expandable surgical valve that is modified to include an expandable coupling stent that can be expanded to engage the inner surface of the base stent, thereby anchoring the valve component to the base stent. In its expanded configuration, the outflow end portion base stent has tri-lobular shape that closely conforms to the shape of the aortic root and a support ring of the prosthetic valve that is mounted within the base stent.09-30-2010
20100249897Device and Method for Delivering an Endovascular Stent-Graft Having a Longitudinally Unsupported Portion - An endoluminal prosthesis having an unsupported or flexible region and a delivery system for delivering the endoluminal prosthesis is provided. The delivery system includes a prosthesis delivery catheter with stiffening elements that provide longitudinally rigid support to a flexible or unsupported portion of an endoluminal prosthesis as the prosthesis is being deployed. A prosthesis is removably coupled to the stiffening elements. The endoluminal prosthesis can be a stent or a stent graft or graft.09-30-2010
20100249895DEVICE FOR IMPLANTING A VASCULAR PROSTHESIS - Implantation device for implanting a prosthesis (09-30-2010
20120316634ENDOVASCULAR FLOW DIRECTION INDICATOR - An endovascular tool is provided, which includes a longitudinal delivery shaft and a fin coupled to the delivery shaft. The fin is configured to assume a compressed state for endoluminal delivery, and an expanded state for endoluminal deployment, in which state the fin is configured to pivot around an axis of rotation. Other embodiments are also described.12-13-2012
20120130470STENT WITH PROTECTED BARBS - An endoluminal prosthesis is described and comprises a stent (05-24-2012
20120130471Venous Valve Apparatus, System, and Method - A venous valve with a tubular frame that includes an outer surface and an inner surface opposite the outer surface and defining a lumen, and a cover over at least the outer surface of the tubular frame, where the cover includes surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen. A system with the venous valve and a catheter including a proximal end and a distal end, the venous valve located between the proximal end and distal end of the catheter. A method including forming the venous valve and reversibly joining the venous valve and a catheter. A method including positioning at least part of the catheter including the venous valve at a predetermined location and deploying the venous valve from the catheter at the predetermined location.05-24-2012
20120130469STENT GRAFT DELIVERY SYSTEMS AND ASSOCIATED METHODS - Stent graft delivery systems are disclosed herein. In several embodiments, a stent graft delivery system can include a stent graft having a proximal portion and a distal portion, a proximal sheath and a distal sheath. The proximal sheath can be configured to cover the proximal portion of the stent graft, and the distal sheath can be configured to cover the distal portion of the stent graft. The proximal sheath and the distal sheath can be independently removable from respective ends of the stent graft such that the proximal and distal portions of the stent graft are independently deployable.05-24-2012
20120130468METHODS AND APPARATUS FOR TREATING NEUROVASCULAR VENOUS OUTFLOW OBSTRUCTION - Methods and devices are disclosed for treating neurovascular venous outflow obstructions, with or without implantation of a prosthetic valve. The valve may be carried by a support, such as a stent, which may be self-expandable or balloon expandable. Both transvascular and direct surgical access is contemplated.05-24-2012
20120165916Stent deployment system with integrated digital camera and dilation balloon - The deployment device includes at least one sheath, a dilation balloon, a transparent tip extending between the at least one sheath and the dilation balloon, a prosthesis, an inner tubular member and a camera to allow visualization of the stricture and prosthesis prior, during, and after deployment without the use of an endoscope. The sheath includes a camera extending from one end.06-28-2012
20120165915EMERGENCY VASCULAR REPAIR PROSTHESIS DEPLOYMENT SYSTEM - A deployment device for repair of a transected body vessel is described herein. Device can have a handle and one or more shafts coupled thereto. A prosthesis being retained by a sheath can be coupled to the delivery device. The sheath can have end portions coupled to one or more shafts. Rotation of a shaft can retract a sheath portion away from either end of the prosthesis for expansion thereof prior to the middle of the prosthesis. Continued rotation of a shaft can completely remove the sheath from the prosthesis, so that the prosthesis is fully expanded and couples the first and second vessel portions of the transected vessel together. Prosthesis may be retained by overlapping a tubular sheath and lacing a threading member therethrough. Prosthesis may be retained by a splittable sheath.06-28-2012
20090259285Bifurcated Delivery System - A delivery system for a stent to a bifurcated region includes an elongated shaft with first and second branches extending from the elongated shaft. First and second branches have first and second balloons mounted thereon, respectively. A first guidewire extends the entire length of the delivery system and into the first branch for an “over-the-wire” configuration. A second guidewire extends into the second branch, but enters the elongated shaft near a distal end thereof for a “rapid-exchange” configuration. A guideway is formed in the elongated shaft and extends into the first guidewire lumen. The guideway may be forced open by a guide member slidably coupled to the elongated shaft, thereby adjusting the effective over-the-wire length of the first guidewire.10-15-2009
20120083869DELIVERY SYSTEM FOR A PROSTHESIS - The invention provides a delivery system for a prosthesis, said delivery system comprising a catheter shaft with a distal end, a proximal end and a longitudinal axis, a space for a prosthesis with a distal end and a proximal end, the space being at the distal end of the catheter shaft, a sheath with a proximal end and a distal end, the sheath being disposed at the distal end of catheter shaft so as to surround the space, a pusher element attached to the distal end of the catheter shaft and arranged at the proximal end of the space for abutting prosthesis, a pull element with a longitudinal axis, the pull element running the length of the catheter shaft and having a distal end attached to the proximal end of the sheath and a proximal end for pulling the pull element proximally, thereby retracting the sheath proximally relative to the prosthesis space, and at least one fixation element having a proximal end and a distal end and being disposed within a flexible portion of the length of the shaft that lies between the proximal end of the sheath and the proximal end of the catheter shaft. The fixation element serves to limit a radial distance between the axis of the pull element outside the shaft and the axis of the catheter shaft along the length of the fixation element whenever a tensile stress in the pull element results in an endwise compressive stress on the shaft and a tendency of the shaft to bow, relative to the pull element.04-05-2012
20120083868METHODS AND APPARATUSES FOR FLOW RESTORATION AND IMPLANTING MEMBERS IN THE HUMAN BODY - A medical device for blood flow restoration and/or for use as an implantable member in a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.04-05-2012
20100204773DELIVERY SYSTEM FOR INTRAVASCULAR DEVICE WITH NETTING - In a cardiac double stent having an outer netting over an inner scaffolding, a limiting ridge for defining advancement of the outer netting over the inner scaffolding, and locking clips integrated in the outer netting for engaging the scaffolding at the insertion limit, assures definite placement and avoids shifting or movement from retracting of the delivery device. The delivery device further includes restricting ridges limiting advancement of the inner netting to overlie the inner scaffolding a substantially equal portion on the proximate and distal ends of a guide wire such that balloon catheter expands first at the overlying portion outside the inner scaffolding to sealably contact the lumen wall on each side of the scaffolding to prevent contamination.08-12-2010
20100204771MEDICAL DEVICE HAVING A ROTATABLE SHAFT - The invention provides design, material, manufacturing method, and use alternatives for medical devices. An example medical device includes a first elongated member having a proximal end, a distal end, and a lumen extending therebetween and a second elongated member having a proximal end, a distal end, and a lumen extending therebetween. The proximal end of the second elongated member may be disposed adjacent to the distal end of the first elongated member forming an actuatable junction. In some cases, the actuatable junction may be actuatable between a first state and a second state. When in the first state, the first elongated member may be rotatable relative to the second elongated member and, when in the second state, the first elongated member may be fluidly sealed to the second elongated member.08-12-2010
20100204772Filter Assemblies - Disclosed is a filter assembly, comprising: a radially expandable vascular flow-increasing device, and a filter including an expandable proximal opening having an operative connection with the radially expandable vascular flow-increasing device, the proximal opening configured to expand in conjunction with expansion of the device, such that when the opening is in an expanded configuration, the filter is configured to filter debris from a fluid stream in which the filter is disposed.08-12-2010
20100204770Stent Delivery System Permitting in Vivo Stent Repositioning - A stent delivery system is disclosed that includes a recapture component for at least partially collapsing an improperly deployed stent in situ to permit repositioning and re-deployment of the stent. The recapture component and the stent may be disconnected in situ to allow for removal of the stent delivery system. In one embodiment, the recapture component is a balloon having loops or hooks around a periphery thereof for receiving at least one removable tether that couples the balloon and stent together. In another embodiment, the recapture component is an expandable tubular component connected to the stent via the removable tether.08-12-2010
20100204774STENT DELIVERY CATHETER - Stent delivery catheters adapted to provide both flexibility and strength are disclosed. Such stent delivery catheters may have outer shafts adapted for tensile strength and inner shafts adapted for compressive strength. In some instances, at least one of the outer shaft and/or the inner shaft may include a micromachined portion.08-12-2010
20120215297EMBOLIC COILS - Coils, such as embolic coils, and related methods, devices, and compositions, are disclosed.08-23-2012
20120136425SLOTTED PUSHER ROD FOR FLEXIBLE DELIVERY SYSTEM - A delivery system for an intraluminal medical device comprises an elongate tubular sheath 05-31-2012
20110184505Components, Systems and Methods for Forming Anastomoses Using Magnetism or Other Coupling Means - Anastomotic components may be attached to hollow bodies or vessels by magnetic or mechanical force to create an anastomosis, form a port in a vessel, or repair a diseased vessel lumen. Anastomoses are created by coupling a first connection to an end of a vessel and then attracting it to a second connector secured to the side wall of another vessel. The connection between the first and second connectors may be solidly magnetic, solely mechanical, or a combination thereof. Also disclosed are methods and devices for treating diseased vessel lumens, for example abdominal aortic aneurysm. A plurality of docking members is attached to the vessel at solicited positions, and then one or more grafts is secured to the docking members in any suitable manner.07-28-2011
20110184504Methods and Apparatus for Providing an Arteriovenous Fistula - Methods and apparatus for creating an artificial arteriovenous fistula between an artery and an adjacent vein are disclosed. Methods include utilizing a hollow spiral shunt that defines a fluid passageway between a proximal port and a distal port thereof. The spiral shunt is loaded within a delivery device that is transversely advanced through a wall of the artery. A piercing end of the spiral shunt is than exposed and the delivery device is rotated to pierce an opposing wall of the artery and a wall of the adjacent vein with the spiral shunt piercing end. Rotation of the delivery device corkscrews the spiral shunt through the walls of the artery and the vein in order to position the spiral shunt to fluidly connect the artery and vein. Once so positioned, the spiral shunt is released to be deployed between the artery and vein lumens thereby forming an artificial arteriovenous fistula therebetween.07-28-2011
20120221091ROTATIONAL CONTROLLED DEPLOYMENT DEVICE - A stent graft deployment device assembly (08-30-2012
20120221092CATHETER GRIPPER - A fastener for attaching a device to a catheter used to mediate a procedure in a patient's body, the fastener dimensioned so that it and the device can be introduced into the patient's body with the catheter and comprising: a clutch controllable to lock the fastener onto and to unlock the fastener from the catheter; and a controller operable to control the clutch selectively to Clock onto and unlock from the catheter when the catheter and fastener are inside a body of a patient.08-30-2012
20100174353Drug-Polymer Coated Stent - The present invention provides a method and system for loading drug onto a stent. The method comprises positioning at least one polymer coated stent on a mandrel, positioning a drug infused sheath onto the stent and diffusing drug from the sheath into the polymer coating of the stent. The system includes a drug coated mandrel and sheath positioned adjacent to and in contact with a polymer coated stent.07-08-2010
20100174354STENT PLACEMENT DEVICE AND STENT PLACEMENT METHOD - A stent placement device and a stent placement method, despite a simple structure thereof, can surely and readily deploy a stent by placing a distal end thereof prior to a proximal end thereof, having favorably low invasiveness, and smoothly insert and arrange the stent into a desired position, without damaging an internal lumen inner wall. A placement device 07-08-2010
20120172963DELIVERY DEVICE - A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device includes an outer sheath that is capable of retracting in a proximal direction and resheathing over the prosthesis in a distal direction. The device includes a drive pulley that can engage gears to retract or resheath the outer catheter in relation to the prosthesis. In some embodiments, the delivery device may include a reinforced outer sheath disposed over an inner elongate member, the reinforced outer sheath comprising a proximal section reinforced with a braid, a distal section reinforced with a coil and an overlapping section extending between the proximal section and the distal section. Additionally or alternatively, the delivery device may include a stabilizing element for releasably holding the stent to the inner catheter.07-05-2012
20120316635Methods for Crimping a Polymeric Stent Onto a Delivery Balloon - A medical device-includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen.12-13-2012
20120316633Durable Stent Drug Eluting Coating - In embodiments, medical devices, such stents, can deliver a therapeutic agent to body tissue of a patient. The medical device includes a porous therapeutic layer that is substantially free of a polymer matrix which can withstand expansion or contraction of the medical device, with minimal delamination.12-13-2012
20120259402MEDICAL DEVICES FOR MEDICAL DEVICE DELIVERY SYSTEMS - An interluminal medical treatment device configured to treat a targeted treatment site within a body lumen. The interluminal medical treatment device can include an elongated generally tubular outer member. The outer member can include an expandable distal portion, an expandable proximal portion, and a central portion of limited expandability. The interluminal medical treatment device can include at least one membrane. The outer member and at least one membrane may define a housing area positioned between the proximal portion and distal portion of the outer member. The outer member and at least one membrane can be configured to redirect fluid flow within a body lumen away from the housing area inner member or inner passageway.10-11-2012
20120259401BALLOON CATHETER FOR LAUNCHING DRUG DELIVERY DEVICE - A method and apparatus for delivering a therapeutic and/or diagnostic agent to tissue within a bodily cavity is provided herein. The apparatus may include a catheter assembly including a catheter and a delivery balloon having an expandable material disposed thereon, wherein the expandable material may be an absorbent at least partially charged with a therapeutic and/or diagnostic agent. The method may include the step of delivering a therapeutic and/or diagnostic agent to tissue by inflating the delivery balloon by supplying fluid thereto until the expandable material adopts an expanded state in which the expandable material contacts the tissue and is implanted in a bodily cavity.10-11-2012
20120259400FLEXIBLE INTRALUMINAL SCAFFOLD - Expandable intraluminal scaffold defining a longitudinal axis is provided, wherein the scaffold includes at least two filaments extending from a head portion disposed along the longitudinal axis at a first longitudinal end, each of the at least two filaments including a free end portion at a second longitudinal end opposite the head portion. The at least two filaments converge toward each other at a juncture disposed proximate the longitudinal axis between the first longitudinal end and the second longitudinal end. A system including a delivery system and the intraluminal scaffold, as well as a method of delivering the scaffold, is also provided.10-11-2012
20120259399INTRALUMINAL SCAFFOLD SYSTEM AND USE THEREOF - Intraluminal scaffold assembly implantable in a body lumen of a patient to manipulate a valve of the lumen is provided. The intraluminal scaffold assembly includes an intraluminal scaffold, an elongated core member coupled with the intraluminal scaffold having a length sufficient to traverse a valve in a body lumen with the intraluminal scaffold positioned proximate the valve. The intraluminal scaffold assembly can further include one or more additional intraluminal scaffolds, a weighted element or an active element that is coupled with the elongated core member. A system including a delivery system and the intraluminal scaffold assembly, as well as methods of delivering the intraluminal scaffold assembly and using the intraluminal scaffold assembly to manipulate a valve in a body lumen, is also provided.10-11-2012
20100049292BALLOON FOR A BODY LUMEN AND METHOD OF USE - A balloon for use in a body lumen comprises a first inflatable balloon segment and a second inflatable balloon segment. The balloon has at least one opening for receiving inflation fluid to inflate the balloon segments. The first balloon segment when inflated includes a surface that defines a recess to receive at least a portion of the second balloon segment. The first and second balloon segments are arranged relative to each other such that a major portion of one of the first and second balloon segments is received in the body lumen before the other of the first and second balloon segments begins to be received in the body lumen.02-25-2010
20100049298Side Branched Endoluminal Prostheses and Methods of Delivery Thereof - An expandable prosthetic device and method of delivery that allows the initial placement of multiple guidewires into selected target sites. The prosthesis includes a main body device. This main body device has a separate side branch guidewire lumen that passes through the main body device and through a side opening in the main body device. As the main body device is advanced, the side opening is self guided (by the side branch guidewire) and self-aligns to the side branch vessel ostium. The main body device is then deployed, leaving the side branch guidewire in place. A side branch device is then advanced along the side branch guidewire through the main body device, through the side wall opening and into the native side branch vessel. The side branch device can then be deployed to engage the main body device and the native side branch vessel.02-25-2010
20100049297METHOD OF LOADING A STENT INTO A SHEATH - A method of loading a self-expanding stent into a delivery sheath configured to retain the stent in a radially compressed pre-deployment configuration, including the steps of radially compressing the stent from a relaxed outside diameter d02-25-2010
20100049295DELIVERY DEVICE WITH A PROTECTIVE MEMBER - A delivery device for positioning and deploying an implantable device within a lumen is provided. The delivery device includes inner and outer tubular members slidable to each other between at least a first hold position and a second release position, a handle and a deployment mechanism adapted for an operator to use a first hand for operating the delivery device and moving the tubular members between the first and second positions. The delivery device further includes a protective member adapted for insulating at least a portion of the outer tubular member from the tendency of the operator to use his or her second hand to grab the outer tubular member during operations or from other external forces.02-25-2010
20100049294Controlled deployable medical device and method of making the same - Controlled deployable medical devices that are retained inside a body passage and in one particular application to vascular devices used in repairing arterial dilations, e.g., aneurysms. Such devices can be adjusted during deployment, thereby allowing at least one of a longitudinal or radial re-positioning, resulting in precise alignment of the device to an implant target site.02-25-2010
20100049293Controlled deployable medical device and method of making the same - Controlled deployable medical devices that are retained inside a body passage and in one particular application to vascular devices used in repairing arterial dilations, e.g., aneurysms. Such devices can be adjusted during deployment, thereby allowing at least one of a longitudinal or radial re-positioning, resulting in precise alignment of the device to an implant target site.02-25-2010
20100049296Implantable medical device coatings with biodegradable elastomer and releasable taxane agent - A coated medical device, such as a stent, that elutes a taxane agent in a controlled manner is provided. In one embodiment, the taxane agent is paclitaxel and at least a portion of the paclitaxel is present in a dihydrate solid form. The medical device may be coated with a layer including a taxane agent and a layer of bioabsorbable elastomer over the layer including the taxane agent. Methods of manufacturing and using the coated medical device are also provided.02-25-2010
20090112304METHOD FOR PERFORMING A VASCULAR ANASTOMOSIS - A method for performing a coronary artery bypass graft procedure on a patient to connect a bypass vessel to a target vessel includes the steps of creating an opening in the patient that communicates with the thoracic cavity of the patient; providing a bypass vessel having a lumen and at least one free end; passing the free end of the bypass vessel from the thoracic cavity through the opening to a position outside the body of the patient; attaching a connector to the free end of bypass vessel while the free end of the bypass vessel is outside the body of the patient; passing the free end of the bypass vessel from the position outside the body of the patient through the opening and into the thoracic cavity; and connecting the free end of the bypass vessel to a target vessel with the connector.04-30-2009
20100298923ROTATABLE CATHETER ASSEMBLY - Embodiments of the present disclosure include methods and systems for a catheter assembly including a catheter shaft, a balloon positioned on the catheter shaft, where the balloon has a first balloon waist, a first lead extending longitudinally through the catheter shaft, and a first sealing member adjacent the first balloon waist and coupled to the first lead, where the first lead can provide electrical current to reversibly transition the first sealing member from a nonactivated state to an activated state in response to a temperature change in the first sealing member, and where at least a portion of the balloon rotates relative the catheter shaft in the nonactivated state and the first sealing member engages the first balloon waist to form a fluid tight seal and to prevent rotation of the balloon relative the catheter shaft in the activated state.11-25-2010
20100298922Angioplasty Assembly - The present invention provides an angioplasty assembly having a guidewire device for use in peripheral vascular and coronary angioplasty applications. The guidewire 11-25-2010
20100274342STENT CRIMPING MECHANISMS - A system for reducing the diameter of a stent comprises a stent contracting assembly. The assembly comprises a plurality of blades, which define a diameter reduction chamber. The chamber has an open diameter configuration and a closed diameter configuration. The plurality of blades comprises active blades and floating blades, wherein each active blade is engaged to an actuation mechanism. The actuation mechanism is constructed and arranged to move each active blade from the open diameter configuration to the closed diameter configuration. Each floating blade is moved from the open diameter configuration to the closed diameter configuration only as a result of the movement of the active blades.10-28-2010
20090105800METHODS OF MINIMIZING STENT CONTRACTION FOLLOWING DEPLOYMENT - The present invention provides methods for fabricating a stent using a preheating stage. The inventors have found a fabrication methods that result in the same and/or better product quality stent using a single step process performed at a temperature of below 65° C., more preferably below 60° C., most preferably below 55° C. Stent fabrication under such reduced temperature conditions reduces the exposure of the stent to adverse temperature conditions, thereby enabling the greater retention of the polymer's memory. Further, upon expansion, the stent does not contract to a smaller diameter but instead remains at a constant diameter or increases to a larger diameter.04-23-2009
20090099641DELIVERY SYSTEM FOR MEDICAL DEVICES - The invention is directed a delivery system for implantation a self-expanding medical device in a body which includes a control handle and a catheter portion. The catheter portion includes an outer restraining member which covers the collapsed, medical device, an inner catheter member having a distal end including a region upon which the medical device is mounted, and an outer sheath which is removably attached to the control handle. The outer sheath creates a conduit for the catheter portion to prevent the inner catheter member from moving axially when the outer restraining member is retracted. The control handle has a rotatable thumbwheel to actuate a retraction mechanism attached to the proximal end of the outer restraining member which moves the restraining member in a proximal direction to deploy the medical device.04-16-2009
20100274343Catheter Support for Stent Delivery - An angioplasty and stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which or over which there is included on a catheter shaft at least one axially movable or enlargeable body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.10-28-2010
20100274341Introducer Assembly and Method of Manufacturing an Introducer Assembly - An introducer assembly (10-28-2010
20100274339Delivery System for Deployment of a One-Piece Iliac-Branch Device - A delivery device for a bifurcated stent-graft includes a first catheter portion with a first tip and a second catheter portion with a second tip. The first and second tips each include a generally curved and tapered outer surface and complementary surfaces that face each other. The first and second tips together form a generally continuous substantially smooth shaped outer surface, for example a bullet-shaped combined tip. An outer sleeve is disposed around the first catheter portion and the second catheter portion such that at least a portion of the first tip and a portion of the second tip extend distally beyond a distal end of the outer sleeve. An inner sleeve maintains the stent-graft in a compressed configuration during delivery to the target site. The delivery device is tracked over two guidewires to the target location with the tips acting as a unit. The outer sleeve is retracted to release the first catheter portion from the second catheter portion, and the tips are tracked over a respective one of the guidewires into its respective branch vessel. The inner sleeve is retracted to deploy the stent-graft from its compressed configuration to its expanded configuration.10-28-2010
20130172977OVER-THE-WIRE INTERLOCK ATTACHMENT/DETACHMENT MECHANISM - The over-the-wire interlock attachment/detachment mechanism includes a cylindrical lock receiving section of a small diameter attached to an implantable medical device such as a blood clot filter, a stent, or a septal occluder. This cylindrical lock receiving section has a plurality of spaced, curved cutouts to receive both the guide fingers and contoured locking fingers formed on a cylindrical locking section. The locking fingers are angled outwardly from the cylindrical body of the cylindrical locking section, and are moved inwardly into engagement with the curved cutouts of the cylindrical lock receiving section by a sheath which slides over the cylindrical locking section or other suitable operator.07-04-2013
20100010613ARTERIOVENOUS FISTULA - A covered radially-expansible stent (01-14-2010
20100010616ATTACHMENT DEVICE AND METHODS OF USING THE SAME - Devices for attaching a first mass and a second mass and methods of making and using the same are disclosed. The devices can be made from an resilient, elastic or deformable materials. The devices can be used to attach a heart valve ring to a biological annulus. The devices can also be used for wound closure or a variety of other procedures such as anchoring a prosthesis to surrounding tissue or another prosthesis, tissue repair, such as in the closure of congenital defects such as septal heart defects, tissue or vessel anastomosis, fixation of tissue with or without a reinforcing mesh for hernia repair, orthopedic anchoring such as in bone fusing or tendon or muscle repair, ophthalmic indications, laparoscopic or endoscopic tissue repair or placement of prostheses, or use by robotic devices for procedures such as those above performed remotely.01-14-2010
20100010617Stent-Graft Delivery System - A method of delivering a stent-graft includes mounting the stent-graft on a pushrod; radially constraining the stent-graft within a sheath; securing a crown portion of the stent-graft to the pushrod with a retainer structure of a stent-graft retainment system; retracting the sheath to expose the crown portion of the stent-graft; and further retracting the sheath to cause the retainer structure to release the crown portion from the pushrod thus deploying the stent-graft. The retainer structure releases the stent-graft automatically as a result of the retraction of the sheath.01-14-2010
20100010615INSERTION SYSTEM FOR A MEDICAL DEVICE HAVING A SHEATH AND SHEATH FOR AN INSERTION SYSTEM FOR A MEDICAL DEVICE - An insertion system (01-14-2010
20100010614Devices and methods for treatment of venous valve insufficiency - Devices and methods for improvement of functioning of a valve of a subject are disclosed. A device exhibiting an outward bias at its proximal end and an outward bias at its distal end, disposed at an angle to the bias at the proximal end is described. A device having a first arm and a second arm separated by a peak and having shoulders is also described. Alternative embodiments which function to decrease the distance between valve leaflets, having a first arm and a second arm biased toward one another are also disclosed. Several embodiments which may have mirror image ends are also disclosed. Any of the devices may have barbs, umbrella structures, sutures, or a variety of spring elements. Devices may be implanted surgically, percutaneously or subcutaneously. Methods and devices for delivery and deployment of devices are disclosed as well as methods for treatment of a valve of a subject.01-14-2010
20100010610ANASTOMOSIS STENT AND GRAFT APPARATUS AND METHOD - An anastomosis graft/stent apparatus comprising a first stent portion, a second stent portion and a graft. The graft is between the first and second stent portions. A port is in the graft portion and provides access to a vessel lumen at the anastomosis site, with the access being sufficient to remove thrombotic material.01-14-2010
20120221090BRANCH STENT GRAFT FOR AORTIC ANEURYSM REPAIR - Described is a removable shunt adapted for deployment along a brain-supplying artery into an aorta to supply blood to the artery during deployment of a stent-graft in the aorta, the removable shunt including a stiff segment that is stiff enough to remain at least partially open when between the aorta and the stent-graft and large enough to allow sufficient blood supply to the brain during the deployment of the stent-graft; and a mechanism for facilitating safe removal of the shunt from between the stent-graft and the aorta. Also described is a method of deploying a branch stent graft having a flaring portion in a blood vessel branching at a bifurcation from an aorta to connect to an aortic stent graft deployed in the aorta across the bifurcation, a branch stent-graft useful in the method, and a delivery system useful in the method.08-30-2012
20120253448STENT GRAFT WITH INTEGRAL SIDE ARM - A fenestrated stent graft (10-04-2012
20120221089Large Vessel Closure Device and Method - A low profile stent device consisting of a stent plus an optional covering is placed percutaneously into a blood vessel to provide vascular closure to a nearby large diameter arteriotomy site. A self-expanding stent device is mounted onto a balloon for postdilitation and is held in a small diameter configuration by an outer case. A balloon expandable stent device has hinge and strut features that provide it with crush resistance. The cone and sheath of the deliver catheter serves as a dilator and introducer sheath to assist in delivery. An attachable guidewire reduces profile by eliminating a guidewire lumen. A locator balloon placed through the large diameter arteriotomy introducer sheath assists positioning.08-30-2012
20120226339BALLOON CATHETER - The invention relates to a balloon catheter for the placement of stent grafts (09-06-2012
20120191172Rotating Stent Delivery System for Side Branch Access and Protection and Method of Using Same - A system for treatment of a vessel bifurcation and its method of use comprises a catheter having a catheter shaft, a portion of which is characterized as an axle about which a rotatable assembly is disposed and rotatable thereabout. The system employs a series of lumens, openings and/or ports to provide a balloon mounted on the rotatable assembly with fluid communication to the catheter shaft.07-26-2012
20120191171SUPPORT DEVICE FOR A TUBULAR STRUCTURE - A blood vessel support device (07-26-2012
20090036965CONJUNCTIVE STENT THERAPY - A conjunctive method of treating coronary artery disease includes a primary treatment where a stent is placed in a coronary artery of a patient at a site of an occlusion. The conjunctive method comprises placing a therapeutic agent at an epicardial surface of a heart of the patient and at the site of the occlusion. The therapeutic agent is selected for abating restenosis at the site.02-05-2009
20090018634DUAL TAPER STENT PROTECTOR - A dual taper stent protector having a first stent covering region configured to cover a stent without substantially engaging the stent, a second covering region, and an engagement region for engaging a product mandrel removably disposed within a catheter shaft, and first and second tapered regions connecting the first stent covering region and the second stent covering region and the second covering region and the engagement region respectively, and to methods of making and using the same.01-15-2009
20120232636METHOD AND DEVICE FOR VASCULAR THERAPY - Medical devices, as well as methods of treatment and manufacturing such devices, are provided for applying vascular therapy locally within the body vessel. The medical devices include an expandable tubular frame and a sleeve. The medical devices can be used for local delivery of a therapeutic agent within a body vessel or a tamponade for a lacerated body vessel, while simultaneously allowing perfusion of fluid or blood flow distal of the implanted medical device. The tubular frame of the medical device can have a middle region with a plurality of members. The members can expand radially outward away from a longitudinal axis of the tubular frame, which can urge the sleeve to contact the wall of the body vessel. In the expanded configuration, a portion of the device allows fluid flow to continue while the sleeve is against the body vessel wall.09-13-2012
20120232635INTRODUCER ASSEMBLY AND CARRIER ELEMENT FOR A MEDICAL DEVICE - An introducer assembly includes a carrier element (09-13-2012
20120232638CUTTING BALLOON ASSEMBLY AND METHOD OF MANUFACTURING THEREOF - A method for fabrication of a cutting balloon assembly is described. The method includes providing a predetermined number of filaments having predetermined properties, diameter and length and fabricating a scoring mesh on a weaving jig having a plurality of pins disposed circumferentially about the jig's surface. The fabrication of the scoring mesh includes placing the filaments between the pins and interlacing the filaments to form a scoring mesh by interweaving and intertwining at least a part of filament to form one or more permanent links with neighboring filaments. The fabrication of the scoring mesh also includes forming distal and proximal filament loops that protrude from the mesh distal and proximal ends, respectfully. The scoring mesh is mounted on an expandable balloon mounted on a distal end of a delivery catheter.09-13-2012
20120232639Intraluminary Stent Relocating Apparatus - An apparatus for moving an object disposed within a body lumen. The apparatus includes a first sheath, a coupling member and at least one contraction member for engaging at least a portion of the object. The coupling member is movable relative to the first sheath between a retracted position and a capture position. In the retracted position, a distal portion of the coupling member is disposed within the first sheath. In the capture position, the coupling member distal portion is disposed outside the first sheath. The coupling member is also selectively attachable to the object in at least the capture position. When the coupling member is attached to the object and the contraction member is directly engaged with the object, a predetermined coupling member movement relative to the contraction member radially contracts at least a portion of the object thereby facilitating movement of the object within the body lumen.09-13-2012
20120232637STENT/GRAFT DEVICE FOR OPEN SURGICAL PLACEMENT - An assembly for open surgical repair of a damaged wall portion of a body vessel includes a stent/graft device comprising an elongated stent body and a graft material covering the stent body. The device is expandable from a compressed condition having a diameter less than a diameter of the vessel to an expanded condition at least as great as the diameter of the vessel. A sheath enclosing the device when in the compressed condition includes a sheath body and a pull string for selectively splitting the sheath body to allow expansion of the device. The device and enclosing sheath are sized for insertion through the damaged wall portion into the vessel, wherein the pull string is extendable through the damaged wall portion for splitting the sheath body.09-13-2012
20080300667SYSTEM FOR DELIVERING A STENT - A stent delivery system comprising a guide having a retention member configured to exert either an internal force or an external force on the stent to assist in retaining the stent on the guide.12-04-2008
20080300666BIFURCATED DELIVERY SYSTEM AND METHOD - A catheter assembly includes an elongate main catheter branch and an elongate side catheter branch. The main catheter branch includes an arc shape and an inflatable balloon extending along a portion of the arc. The side catheter branch extends along the main catheter branch within a plane of the curvature of the arc of the main catheter branch. A stent can be positioned along the inflatable balloon. The stent includes a lateral branch opening through which the side catheter branch extends.12-04-2008
20100217372HYPOTUBE CATHETER - A balloon catheter device (08-26-2010
20110004287Bifurcated Stent and Delivery System - Systems for delivering a bifurcated stent to a bifurcation site comprise catheters and/or bifurcated stents delivered therefrom.01-06-2011
20120239128STENT AND DELIVERY SYSTEM - Techniques are disclosed that allow a stent to be folded within a balloon of a stent delivery system. In one example, a stent has first and second columns that extend from a proximal end to a distal end along a longitudinal axis. Each of the first columns extend substantially parallel to the longitudinal axis and comprise a plurality of elements that each have a substantially polygonal shape. Each of the second columns extend substantially parallel to the longitudinal axis and are between adjacent first columns. Each of the respective second columns include a plurality of first connectors that have a curvilinear shape and that extend in a substantially circumferential direction to connect adjacent first columns. The stent also has a plurality of second connectors, wherein at least one of the second connectors extends between a first element and a second element.09-20-2012
20120265288SYSTEMS FOR PERFORMING INTRALUMENAL RECONSTRUCTION - Devices, systems and methods are provided for performing intra-lumenal medical procedures in a desired area of the body. Stents, stent delivery devices and methods of performing medical procedures to redirect and or re-establish the intravascular flow of blood are provided for the treatment of hemorrhagic and ischemic disease states.10-18-2012
20120265287In-Situ Forming Foams for Treatment of Aneurysms - Systems, methods and kits relating to in-situ forming polymer foams for the treatment of aneurysms are disclosed. The systems include an insertable medical device and an in-situ forming foam that is formed from a polymer that reacts in an aqueous environment. When used to treat an aneurysm, the foam is placed into contact with at least a portion of an exterior surface of the medical device and/or the tissue surface of the aneurysm.10-18-2012
20120265283REPERFUSION INJURY DEVICES - A catheter configured for performing reperfusion by alternatively occluding a vessel so as to prevent fluid flow and removing that occlusion to allow fluid flow is described. A first catheter includes an outer member and a retractable valve to allow and prevent fluid flow in the vessel. A second catheter includes a sheathed expansion member that can be deployed and recaptured to prevent and allow, respectively, fluid flow. A third catheter includes an angioplasty balloon to open a vessel occlusion, in which an occlusion balloon is used to allow and disallow fluid flow. A fourth catheter includes an expandable member for providing mechanical plunging action to urge thrombotic material to a more distal location. A fifth catheter includes an accessory catheter that can be used to perform reperfusion with another catheter. A sixth catheter includes an inner balloon within an outer balloon configured to perform reperfusion.10-18-2012
20120265282CAROTID SHEATH WITH THIN-WALLED SHAFT AND VARIABLE STIFFNESS ALONG ITS LENGTH - A sheath to access a patient's vascular system where a portion of the length of the sheath is the proximal portion which has stiffer bending characteristics when taken with respect to a shorter distal section of the sheath which has increased flexibility with regard to bending characteristics.10-18-2012
20120265285MEDICAL DELIVERY SYSTEM AND METHOD FOR DELIVERY OF A MEDICALLY USEFUL PAYLOAD - The present disclosure concerns a delivery system for delivering a medically useful payload through the vasculature to a site of interest in the patient's body. The medically useful payload may be a therapeutic device, such as a stent, and it may be a diagnostic tool, such as an imaging device. Owing to its structural attributes, the presently-inventive delivery system is well suited for carrying medical payload to and through vessel curvature and to branched regions (i.e., bifurcations) in same. Also, the device is well-suited to traveling through a vessel over a guiding element, such as a guidewire, which itself exhibits curvature.10-18-2012
20110046711STRENGTHENING TEXTURES IN MEDICAL DEVICES - The present invention refers to medical devices. Particularly it relates to stent devices and balloon catheter devices. In the most particular aspect of the invention it relates to the strengthening of the structure of such a medical device, especially of a balloon on a balloon catheter device and its use in a variety of medical procedures to treat medical conditions in animal and human patients.02-24-2011
20110046710IMPLANTATION DEVICE WITH HANDLE AND METHOD OF USE THEREOF - An instrument for deploying an implantable medical device into a body lumen is disclosed. The instrument comprises a base member having a base handle and a deployment extension, a first tubular member having a first tubular body and a first handle, and a second tubular member having a second tubular body and a second handle. The first tubular member fits over the deployment extension and is longitudinally slidable over the deployment extension, and the second tubular member fits over the first tubular member and is longitudinally slidable over the first tubular member. The distal ends of the deployment extension, the first tubular body, and the second tubular body are adapted to hold and deploy the implantable medical device.02-24-2011
20110046709METHODS FOR IMPLANTING A STENT USING A GUIDE CATHETER - Various methods for implanting a stent into an ostium or a proximal portion of a body vessel utilizing a guide catheter, rather than a convention balloon angioplasty balloon catheter, as the primary delivery device are disclosed. The guide catheter can be used as the primary stent delivery catheter for the ostium region of the body vessel and can be anchored to the vessel to allow secondary treatment devices to be advanced to distal locations in the body vessel.02-24-2011
20120271398AORTIC BIOPROSTHESIS AND SYSTEMS FOR DELIVERY THEREOF - Embodiments of the present disclosure are directed to stents, valved-stents, and associated methods and systems for their delivery via minimally-invasive surgery.10-25-2012
20120271397Guidewire with Two Flexible End Portions and Method of Accessing a Branch Vessel Therewith - A guidewire having flexible or floppy proximal and distal end portions is used for percutaneously accessing a branch vessel through a deployed prosthesis having at least one fenestration near an ostium of the branch vessel. The prosthesis is delivered and deployed via a first percutaneous access site. The guidewire extends over the outside surface of the deployed prosthesis and extends through the at least one fenestration. The flexible distal end portion is snared via a second percutaneous access site and is pulled in a direction towards the second percutaneous access site until the flexible proximal end of the guidewire is located adjacent to the branch vessel. A guide catheter is then advanced over the guidewire until it cannulates the branch vessel. The flexible proximal end of the guidewire may then be advanced into the branch vessel and used for delivery of a branch vessel prosthesis.10-25-2012
20120330396Control System for a Stent Delivery System - A control system for controlling movement of a medical device delivery system, a stent delivery system and a method for controlling movement of a medical device delivery system are provided. The control system includes a first extendable arm comprising a plurality of first struts interconnected at intermediate points and end points of the first struts. The first arm is movable between a first position and a second position and the first arm is operably connected to one of the first shaft and the second shaft. The control system also includes a first actuator operably connected to the first arm and the first actuator is operable to move the first arm from the first position to the second position. Movement of the first arm moves the first shaft relative to the second shaft to change the position of the second shaft relative to the first shaft.12-27-2012
20120330397Stent Delivery Systems and Methods for Making and Using Stent Delivery Systems - Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include a guide catheter. A push catheter may be slidably disposed over the guide catheter. A stent may be slidably disposed over the guide catheter and disposed adjacent to a distal end of the push catheter. An attachment mechanism may be coupled to the push catheter that is configured to engage the stent. The attachment mechanism may include a base and at least one cantilever extending from the base.12-27-2012
20120330398PLAIN WOVEN STENTS - Methods for treating a femoro-popliteal artery of a patient include delivering a self-expanding, woven stent from a delivery system. The methods may include delivering a guidewire to a lesion in the femoro-popliteal artery and advancing the delivery system over the guidewire.12-27-2012
20120323299ROTATIONAL ALIGNMENT WIRE SYSTEM FOR AN ENDOVASCULAR DELIVERY SYSTEM - An endovascular delivery system includes an endovascular prosthetic device and a signal active guide wire engaging the endovascular prosthetic device. A rotary encoder is coupled with the guide wire and the endovascular prosthetic device to provide an encoder signal on the guide wire. The encoder signal is indicative of axial angular position of the endovascular prosthetic device during implantation of the endovascular prosthetic device in a body of a patient.12-20-2012
20120323300POWER AND/OR SIGNAL TRIGGER WIRE FOR AN ENDOVASCULAR DELIVERY SYSTEM - An endovascular graft delivery system includes an endovascular prosthetic device and one or more trigger wires deployably engaging portions of the endovascular prosthetic device. An electrical element is positioned at a proximal end of a trigger wire. The electrical element is in signal communication with the trigger wire to communicate operational signals over the trigger wire. The operational signals may be power or control signals to assist with positioning the endovascular prosthetic device at a desired deployment location.12-20-2012
20120323301Medical Device Balloons with Improved Strength Properties and Processes for Producing the Same - A tubular parison for forming a medical device balloon. The parison is formed of a polymeric material, for instance a thermoplastic elastomer. The parison has an elongation at break which is not more than 80% of the elongation of the bulk polymeric material. The elongation of the parison is controlled by altering extrusion conditions. Balloons prepared from the parisons provide higher wall strength and/or higher inflation durability than balloons prepared from conventional parisons of the same material.12-20-2012
20110213450MEDICAL DEVICE DELIVERY SYSTEM - A medical device delivery system for remotely deploying a stent or similar medical device is disclosed. The medical device delivery system includes a delivery device having a handle engaged to an elongated barrel with a puller arrangement attached to an elongated outer catheter defining a distal end engaged to a catheter tip that collectively encapsulates the medical device. The handle includes a trigger actuator operatively engaged to a drive mechanism with a lead screw that drives the puller arrangement along the barrel. During deployment, the trigger actuator is actuated by the user, which activates the drive mechanism and rotates the lead screw for moving the puller arrangement to automatically deploy the medical device. In manual operation, the user disengages the lead screw from the puller arrangement and manually moves the puller arrangement toward the handle to manually deploy the medical device rather than actuate the trigger actuator.09-01-2011
20110230952ENDOPROSTHESIS ASSEMBLIES AND METHODS FOR USING THE SAME - Endoprosthesis assemblies and methods for using the same. In at least one embodiment of an endoprosthesis assembly of the present disclosure, the endoprosthesis assembly comprises an endoprosthesis comprising an impermeable inner wall defining an endoprosthesis lumen sized and shaped to permit fluid to flow therethrough, a distal balloon positioned at or near a distal end of the endoprosthesis, the distal balloon capable of inflation to anchor the distal end of the endoprosthesis within a luminal organ, and a proximal balloon positioned at or near a proximal end of the endoprosthesis, the proximal balloon capable of inflation to anchor the proximal end of the endoprosthesis within the luminal organ, wherein when the endoprosthesis assembly is positioned within the luminal organ at or near an aneurysm sac, inflation of the distal balloon and the proximal balloon effectively isolates the aneurysm sac and prevents fluid within the aneurysm sac from flowing past the distal balloon and the proximal balloon and into other areas of vasculature adjacent to the aneurysm sac.09-22-2011
20110230949Venous Valve, System, and Method With Sinus Pocket - A valve with a frame and valve leaflets that provide a sinus pocket. The valve provides for unidirectional flow of a liquid through the valve.09-22-2011
20110238148IMPLANT REMOVAL - The invention relates to a device comprising an endovascular implant (09-29-2011
20110238147MANUAL ACTUATION SYSTEM FOR DEPLOYMENT OF IMPLANT - A system for mechanically deploying intraluminal implants is disclosed. The system is used with an implant that is delivered and/or deployed via a pull wire and includes a handle having a funnel and receiving channel for receiving the pull wire, a slider having a thumb grip and a wedge, and a shuttle having a grabber for grasping the pull wire. The thumb grip is pulled proximally to retract the wedge to cause the grabber to grasp the wire and retract the shuttle but not the wire. An extension spring linked between the slider and the shuttle abruptly pulls the shuttle to retract the pull wire after the slider is fully retracted.09-29-2011
20120277845DELIVERY SYSTEM WITH RETRACTABLE PROXIMAL END - A medical device delivery system is described, the medical device delivery system comprising: a medical device carrier portion comprising a proximal end; a release mechanism cooperating with said medical device carrier portion and operable to release a medical device from said medical device carrier portion; and a proximal tip portion. The proximal tip portion comprises a largest outside diameter, a proximal end, a distal end, and a plurality of longitudinal lengths as measured from said proximal end to said distal end of said proximal tip portion, and is disposed proximal to said medical device carrier portion. The proximal tip portion further comprises and is operable between at least an extended longitudinal length and a retracted longitudinal length of said plurality of longitudinal lengths. Said extended longitudinal length is greater than said retracted longitudinal length.11-01-2012
20120277844Biodegradable Drug Eluting stent Pattern - In embodiment, pattern for polymeric radially expandable implantable medical devices such as stents for implantation into a bodily lumen are disclosed.11-01-2012
20110264191Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A delivery system for delivery of an implantable stented device to a body lumen that includes an elongated member having a distal tip and a proximal end portion, a wire connection member positioned between the distal tip and proximal end portion of the elongated member, and a plurality of capturing wires extending from a distal end of the wire connection member. Each of the capturing wires includes a distal end having a lower portion that is moveable relative to an upper portion between an open position and a closed position, and a slot defined by the upper and lower portions when they are in the closed position.10-27-2011
20120089216METHOD AND APPARATUS FOR ALLOWING BLOOD FLOW THROUGH AN OCCLUDED VESSEL - A device arranged to sustain and/or provide at least partial patency of a small blood vessel exhibiting an occlusion, the device constituted of a tubular body expandable from a first small diameter state for manipulation to, and through, the occlusion of the small blood vessel and a second large diameter state, the inner dimensions of the second large diameter state being no more than 50% of the diameter of the small blood vessel at the occlusion location, the device presenting a conduit for blood flow through the occlusion when in the large diameter state. In one embodiment the small blood vessel is an intracranial blood vessel.04-12-2012
20110276120Vascular Device For Use During An Interventional Procedure - A vascular device for use during an interventional procedure, the device having a stent structure having a collapsed configuration, an expanded configuration, a proximal end, and a distal end; and a delivery member for delivering the stent to a treatment site within a vasculature, wherein the proximal end of the stent structure is fixed to the delivery member when the stent structure is in the expanded configuration at the treatment site.11-10-2011
20110276119APPARATUS FOR CURVING AN IMPLANTABLE MEDICAL DEVICE IN A LUMEN - An introducer assembly (11-10-2011
20100168836BALLOON SIZING OF VALVE ANNULUS FOR PERCUTANEOUS VALVES - Balloon sizing of valve annulus for percutaneous valves. In at least one embodiment of a device to size a valve annulus of the present disclosure, the device comprises an elongated body extending from a proximal end to a distal end and having a lumen therethrough, a balloon positioned along the elongated body at or near the distal end, a detector and a pressure transducer positioned along the elongated body within the balloon, and a suction/infusion port defined within the elongated body within the balloon.07-01-2010
20100168834Delivery Device - A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device includes an outer sheath that is capable of retracting in a proximal direction and resheathing over the prosthesis in a distal direction. The device includes a drive pulley that can engage gears to retract or resheath the outer catheter in relation to the prosthesis. In some embodiments, the delivery device may include a reinforced outer sheath disposed over an inner elongate member, the reinforced outer sheath comprising a proximal section reinforced with a braid, a distal section reinforced with a coil and an overlapping section extending between the proximal section and the distal section. Additionally or alternatively, the delivery device may include a stabilizing element for releasably holding the stent to the inner catheter.07-01-2010
20100168833Stent With Reduced Profile, Delivery System, and Method of Manufacture - An intraluminal stent, an intraluminal stent delivery system, and a method of manufacturing a stent. The stent (07-01-2010
20100168835STENT DELIVERY DEVICE WITH ROLLING STENT RETAINING SHEATH - A delivery device for delivering a stent device that is expandable from a radially reduced, delivery configuration to a radially expanded, deployed configuration. A retaining sheath is disposed over the stent device for maintaining the stent device in the delivery configuration. A pull line to be pulled upon is provided to retract the retaining sheath in a rolling manner such that the retaining sheath is folded back on itself to provide a radially inner sheath of the retaining sheath, a radially outer sheath of the retaining sheath and a fold portion therebetween. The retaining sheath may be made of a cold drawn plastic at least along the path of travel of the fold portion in retracting the retaining sheath from over the stent device.07-01-2010
20120095543RETRIEVABLE DEVICE HAVING A RETICULATION PORTION WITH STAGGERED STRUTS - A retrievable device for treatment of a stenotic lesion in a body vessel is disclosed. The device comprises a reticulation portion including a plurality of struts connected together in a singly staggered configuration distally along a longitudinal axis. The plurality of struts of the reticulation portion is configured to fold along the longitudinal axis defining a collapsed state of the device for retrieval. The device further includes an expandable body distally extending from the reticulation portion along an outer diameter for treatment of the stenotic lesion. The expandable body is configured to expand in the open state and collapsed in the collapsed state of the reticulation portion for retrieval. The device further comprises a retrieval stem extending proximally from the reticulation portion for retrieval of the device in the collapsed state.04-19-2012
20120095542INTRALUMINAL MEDICAL DEVICE - A multi-sided intraluminal medical device having a self-expanding frame and a pair of guide bars located on opposite ends of the frame and adapted to enable the frame to be retracted for delivery or retrieval from either end is provided. The intraluminal device may further include a partial or full covering that is circumferentially attached to the frame. Such a medical device may be used as a stent to maintain an open lumen in a vessel (e.g., a vein, artery, or duct), as a valve, or as an occlusion device.04-19-2012
20110319976DEVICE AND METHOD FOR PREVENTING STENOSIS AT AN ANASTOMOSIS SITE - The present invention relates to treating or preventing stenosis at an anastomosis site. In one embodiment, the present invention is a stent is curved along the longitudinal axis for placement in and adjacent to the graft orifice. In a further embodiment, the stent is drug coated to allow delivery of antivasculoproliferative drugs directly to the vicinity of the graft orifice. In a further embodiment, the stent is expandable by use of an external wire. In another embodiment, the present invention is a kit comprising the specially configured stent together with a sleeve comprising a biocompatible matrix material and a pharmaceutical agent, wherein the sleeve is applied to the external surface of the vessel or graft, resulting in extravascular delivery of a pharmaceutical agent. Methods for treating or preventing stenosis at an anastomosis site by applying the extravascular sleeve and the intravascular stent are also provided.12-29-2011
20120101561STENT DELIVERY CATHETER WITH RAPID EXCHANGE CAPABILITIES - A stent delivery system having rapid exchange capabilities for delivering a self-expandable stent. The system includes a delivery catheter and a sheath positionable in the lumen of the delivery catheter. The delivery catheter includes an elongate shaft extending distally from a hub assembly. The elongate shaft includes a lumen extending therethrough and a guidewire port providing access to the lumen at a location intermediate the proximal and distal ends of the elongate shaft. The sheath is positionable in the lumen of the delivery catheter such that the sheath extends across the guidewire port to close off the guidewire port to allow a stent to be passed through the sheath from proximal of the guidewire port to distal of the guidewire port.04-26-2012
20120101560Retractable flow maintaining stent wire - The present invention is a self-expanding stent delivered to the affected site within the human body with a guide wire and hand-manipulable control apparatus. The stent is capable of full expansion only along a pre-determined length of its body with the remainder of the overall length tapering (in substantially conical form) to a fixed connection point with the guide wire. The stent is delivered to the affected area in a covering sheath that has a tip that is capable of penetrating a blockage or obstruction in a vessel such that the stent can be exposed to begin its expansion. Once the obstruction has been opened, the stent can be recaptured or retrieved by pulling it back into the sheath, collapsing the expanded stent, and withdrawing the stent and wire completely from the vessel. The present invention may be coated with a variety of therapeutic agents to aid in the treatment of the damaged tissue.04-26-2012
20120290066INTRODUCER WITH RATCHET HANDLE DRIVE - A stent graft introducer has stent graft releasably retained onto a deployment catheter and a sheath encloses the stent graft. A handle assembly has a handle, a first slide and a second slide. The first slide retracts within the second slide and the second slide retracts within the handle. An actuation arrangement comprises a first longitudinal gear rack on the first slide, a second longitudinal gear rack on the second slide and a ratchet lever assembly on the handle. Actuation of the ratchet lever assembly causes the second slide to fully retract into the handle at which time the ratchet lever assembly engages the first gear rack through an aperture in the second rack and continued actuation causes retraction of the first slide thereby retracting the sheath from the pusher to expose the stent graft.11-15-2012
20130023979STENT GRAFT DEVICE - A stent graft device for implanting in a body lumen, comprising a stent with non-staggered or staggered apexes, said stent comprising a plurality of stent sections, bendable connecting members forming said non-staggered or staggered apexes and connecting each of said stent sections to other stent sections to form a zigzag pattern, wherein said stent is staggerdly sutured to a graft by a plurality of suture knots, and wherein said suture knots and staggered apexes are staggered when said stent sections are crimped, and methods of use thereof.01-24-2013
20130023977STENT DELIVERY SYSTEM AND MANUFACTURING METHOD FOR THE SAME - A stent delivery system, and associated manufacturing method, are such that the outer diameter of the distal portion of the stent delivery system is relatively small. The stent delivery system includes a hollow shaft portion, an inflatable balloon disposed on the outer periphery of a distal portion of the shaft portion, and a stent disposed on the outer periphery of the balloon and having struts expanded by inflation of the balloon. The balloon has a ridge portion with which the stent is engaged. The ridge portion is sandwiched in a space between the struts, and a top portion of the ridge portion has a concave portion recessed toward the axis of the shaft portion01-24-2013
20130023976OSTIAL STENTING SYSTEM - A method and apparatus provide techniques for stenting ostial legions and other restenosis in vessels through a stenting apparatus that includes both a guidewire and a separate marker wire. In some examples, the marker wire is threaded through a tubular body of the stenting apparatus and in other examples, the marker wire may be threaded externally through the tubular body. In both such examples, the marker wire may be aligned with a radiopaque marker of the apparatus to guide marker wire positioning.01-24-2013
20100168838TRIGGER WIRE SYSTEM - A prosthesis deployment device having a elongate catheter body and a trigger wire guide concentric about the elongate catheter body where the trigger wire guide comprises three trigger wire lumens separate and apart from a guide wire lumen, with three trigger wires being at least partially disposed in the three trigger wire lumens and configured to engage a portion of a prosthesis to retain the prosthesis adjacent to the trigger wire guide.07-01-2010
20100168837BLOOD PERFUSION DEVICE - Medical devices, as well as methods of treatment and manufacturing such devices, are provided for applying vascular therapy locally within the body vessel. The medical devices include an expandable tubular frame and a sleeve or graft material. The medical devices can be used for local delivery of a therapeutic agent within a body vessel or a tamponade for a lacerated body vessel, while simultaneously allowing perfusion of fluid or blood flow distal of the implanted medical device. The tubular frame of the medical device may have a proximal non-expanding portion and a distal self-expanding support structure. The self-expanding support structure can expand radially outward to urge the graft material to contact the wall of the body vessel. In the expanded configuration, a portion of the device allows fluid flow to continue while the sleeve is against the body vessel wall.07-01-2010
20120150271BUDDY WIRE FOR THE CORONARY ARTERIES - A buddy wire guide wire has a wire section for guiding a catheter to a particular site in the human body. The buddy wire guide wire has a distal section with a distal end and an opposing proximal end. The wire section is attached to the proximal end of the distal section with the distal section being placed coaxially around the shaft of some existing medical device which has been inserted into the human body. The distal section permits the buddy wire to be advanced into the human body over the medical device by using the medical device as a guide.06-14-2012
20130018448DRUG ELUTION MEDICAL DEVICE - An endoprosthesis (e.g., a sleeve) can be used to deliver therapeutic agents to lesion sites. In some embodiments, one or more sleeves can be delivered to one or more body lumen sites in relatively few intervention procedures. The sleeve can be used to deliver therapeutic agents to a de novo site or the site of a previously deployed stent, or a stent may be co-administered along with one or more sleeves.01-17-2013
20130018449ENDOLUMINAL CARDIAC AND VENOUS VALVE PROSTHESES AND METHODS OF MANUFACTURE AND DELIVERY THEREOF - This invention relates to prosthetic cardiac and venous valves and a single catheter device and minimally invasive techniques for percutaneous and transluminal valvuloplasty and prosthetic valve implantation.01-17-2013
20110160837APPARATUS AND METHODS FOR DELIVERING PROSTHESES TO LUMINAL BIFURCATIONS - A catheter for delivering luminal prostheses comprises a catheter body having an expandable member near a distal end. The prosthesis has a side hole, and a guidewire extends beneath a proximal portion of the prosthesis and over the exterior of the expandable member. A distal end of the guidewire is retracted proximally from the closest point on the side opening to reduce possible interference with catheter advancement.06-30-2011
20110160836VALVE DEVICE - A valve such as an esophageal valve (06-30-2011
20110160835INDIRECT-RELEASE ELECTROLYTIC IMPLANT DELIVERY SYSTEMS - Medical devices and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or be used in variety of other procedures. The systems may employ a self expanding stent restrained by one or more members released by an electrolytically erodable latch. Such release means do not connect directly to the implant, though one or more portions may contact it.06-30-2011
20110160834RAPID EXCHANGE CATHETER - A rapid exchange catheter includes a stiff proximal tube and a relatively flexible tapered distal tube, a guide wire tube being provided in the distal tube, with an aperture for access to the guide wire lumen being provided at the junction between the distal tube and the proximal tube, the tubes being bonded together at their junction.06-30-2011
20130023978STENT GRAFT DEVICE - A stent graft device for implanting in a body lumen, comprising a stent with non-staggered or staggered apexes, said stent comprising a plurality of stent sections, bendable connecting members forming said non-staggered or staggered apexes and connecting each of said stent sections to other stent sections to form a zigzag pattern, wherein said stent is staggerdly sutured to a graft by a plurality of suture knots, and wherein said suture knots and staggered apexes are staggered when said stent sections are crimped, and methods of use thereof.01-24-2013
20130172976SYSTEM AND METHOD FOR DELIVERING AND DEPLOYING AN OCCLUDING DEVICE WITHIN A VESSEL - A system and method for deploying an occluding device that can be used to remodel an aneurysm within the vessel by, for example, neck reconstruction or balloon remodeling. The system comprises an introducer sheath and an assembly for carrying the occluding device. The assembly includes an elongated flexible member having an occluding device retaining member for receiving a first end of the occluding device, a proximally positioned retaining member for engaging a second end of the occluding device and a support surrounding a portion of the elongated flexible member over which the occluding device can be positioned.07-04-2013
20080255654SYSTEM FOR DELIVERING A STENT - A stent delivery system including an elongate member having a proximal segment and a distal segment, the distal segment having a first coil section, a second coil section, an intermediate coil section located between the first and second coil sections and a plastic material overlying one or more of the coil sections.10-16-2008
20080255652Expandable Tip Delivery System and Method - A method of deploying a stent-graft in a curved vessel includes deploying an expandable tip to center a proximal end of the catheter containing a stent-graft in the curved vessel. A sheath is retracted to expose the stent-graft and the stent-graft self-expands into the curved vessel. By centering the catheter containing the stent-graft prior to deployment with the expandable tip, the accuracy of stent graft placement within the curved vessel is improved.10-16-2008
20080243224Intracranial Stent and Method of Use - A stent and stent catheter for intra-cranial use, and a method of treating vascular disease in blood vessels in the brain.10-02-2008
20080234797Device for inserting a radially expandable implant, treatment kit and associated insertion method - The device (09-25-2008
20080234796Implant Delivery Device - An implant delivery device preferably includes a first shaft having a proximal portion and a distal portion. The first shaft includes an outer surface and an inner surface defining a first lumen along a longitudinal axis. The distal portion includes a tip defining a taper in the distal direction toward the longitudinal axis and terminating at a distal opening. The device also includes a second shaft having a proximal portion and a distal portion and an inner surface defining a second lumen therebetween having a first cross-section. The second shaft is disposed within the first lumen such that the second lumen is generally coaxial with the first lumen to define a chamber. The distal portion of the second shaft terminates in a port having an opening in communication with the distal opening of the first shaft. The port preferably includes a second cross-section greater than the first cross-section.09-25-2008
20110264188RE-ESTABLISHMENT OF BLOOD FLOW IN BLOCKED HUMAN ARTERIES BY TRANSFERRING NANO-ENCAPSULATED DRUG THROUGH MEDICAL DEVICES, DESIGNED FOR THE SAME AND RELEASING THE NANO-ENCAPSULATED DRUG IN HUMAN ARTERY WITH BODY PH - A drug-delivering insertable medical device for treating a medical condition associated with a body lumen is disclosed. The drug-delivering insertable medical device includes an outer surface coated with two or more nano-carriers having two or more average diameters. A nano-carrier of the two or more nano-carriers has an average diameter suitable for penetrating one or more layers of two or more layers of the body lumen. The nano-carrier includes a drug surrounded by an encapsulating medium. The encapsulating medium includes one or more of a biological agent, a blood excipient, and a phospholipid.10-27-2011
20080221656Endovascular deployment device - An endovascular delivery device (09-11-2008
20080221655Bifurcated Balloon and Stent09-11-2008
20080221654SYSTEMS AND METHODS FOR DELIVERING A DETACHABLE IMPLANTABLE DEVICE - Disclosed herein are various systems and methods for delivering implantable devices, such as, for example detachable embolic coils. The systems can include an embolic coil mated to a pusher wire via a detachable link comprising first and second engaging members and an expandable member or a sleeve. The expandable member or sleeve can reduce relative movement between the engaging members to inhibit premature detachment and/or jamming of the detachable link as the embolic coil is delivered through a catheter.09-11-2008
20130178925STENT DELIVERY SYSTEM - A stent delivery system includes a self-expanding stent, an inner tube body, and a sheath whose distal portion contains the stent. The stent can be discharged by moving the sheath proximally relative to the inner tube body. The inner tube body includes a distal contact section provided relative to a proximal portion of the stent and does not enter side wall openings of the stent; and a proximal contact section located at a position rear of the proximal end of the stent and close to the distal contact section. The stent has a proximal inwardly protruding section which can make contact with the distal contact section of the inner tube body. The proximal inwardly protruding section is located between the distal contact section and the proximal contact section. The stent does not, except in the proximal portion thereof, have a substantially bent, free end which protrudes towards the proximal side.07-11-2013
20120253446Valve Device with Inflatable Chamber - Prosthetic valve devices for implantation in body vessels are provided. The prosthetic valve device includes at least one flexible member that permits fluid flow in a first direction and substantially prevents fluid flow in a second. The valve device also includes an inflatable chamber at least partially attached to the flexible member. The inflatable chamber is adapted to receive inflating media and is adapted to contact the body vessel. A delivery system is also provided that includes a valve device and a delivery apparatus. The delivery apparatus includes a member adapted for filling the chamber of the valve device with inflating media. A related method of making the valve device is also provided.10-04-2012
20110270375INTRODUCER FOR AN ILIAC SIDE BRANCH DEVICE - An introduction arrangement for a fenestrated or branched stent graft (11-03-2011
20130138200BIFURCATED GRAFT DEPLOYMENT SYSTEMS AND METHODS - A method for deploying an endoluminal vascular prosthesis using a deployment catheter that has at least a main graft portion and a first branch graft portion. The deployment catheter preferably comprises an elongate, flexible catheter body having a proximal end and a distal end, and an outer sheath and an inner core that is axially moveable with respect to the outer sheath. The catheter preferably comprises a main graft restraint that has a main graft release mechanism comprising a main graft sheath and a suture threaded through a plurality of the openings in the main graft sheath. The catheter further comprises at least one branch graft restraint comprising at least one branch graft release mechanism.05-30-2013
20130090715IN VITRO TESTING OF ENDOVASCULAR DEVICE - Some embodiments relate in part to endovascular devices such as prostheses and methods of testing same prior to deployment. Some embodiments may be directed more specifically to inflatable grafts or stent grafts and methods of in vitro leak testing of such grafts prior to in vivo deployment.04-11-2013
20130090714STENT DELIVERY, REPOSITIONING, AND REMOVAL SYSTEM - A system for the delivery, repositioning, and removal of a stent is provided that utilizes inherent properties of stents, such as wire woven helical stents, including foreshortening. The stent can be radially constrained to reduce its diameter by applying a tensile force along its proximal and distal ends to collapse the stent permitting the delivery, repositioning, and removal of the stent.04-11-2013
20130096664Medical Implant Maintaining Gaps upon Crimping, Method and Delivery Device - An implant, intended to be detachably fixed or crimped on a portion or an outer surface of a catheter for being delivered to an implantation site, includes a longitudinal axis, or an inner space or inner volume longitudinally extending within the implant, and a radial direction perpendicular to the longitudinal axis, space or volume. The implant includes a first structural element having a first portion, a second structural element having a second portion, and one or more interconnecting elements arranged between the first and the second structural elements. In the implant, the first portion and/or the second portion is/are located less radially as regards the longitudinal axis, inner space, or volume than a third portion of the one or more interconnecting elements.04-18-2013
20130103130Catheter Assembly With User-Assisting Handle - A catheter assembly includes a catheter, including an inner member and a sheath, extending from a handle. The handle includes a housing, a braking assembly, a carriage and a carriage driver. The braking assembly comprises a braking element within the housing interior and a braking element rotator. The carriage comprises at least one carriage braking surface engaging the braking element. The carriage driver, such as a spring, biases the carriage towards the proximal end of the handle. The inner member has a proximal end secured to the housing. The sheath has a proximal end secured to the carriage. Rotating the braking element causes the carriage to move proximally as the carriage braking surface slides along the braking element. This causes the sheath to move proximally relative to the inner member.04-25-2013
20130103133Placement of Multiple Intraluminal Medical Devices within a Body Vessel - Medical device delivery systems and related kits and methods for placing multiple expandable medical devices within a body vessel are provided. A delivery system includes first and second expandable medical devices having the same or different dimensions. Placement of the first and second expandable medical devices in a body vessel can be achieved without requiring withdrawal of one or more components of the delivery system and insertion of secondary components.04-25-2013
20130103132METHOD AND APPARATUS FOR ENDOVASCULAR THERAPY OF AORTIC PATHOLOGY - Assemblies, devices, and methods for positioning the same proximate a target site within a body lumen are provided. The assembly includes first and second components that can function independently of one another to address a patient's vascular abnormalities or can cooperate to form an assembly. The assembly is designed to address aortic pathologies near clusters of arterial branches in a way that allows blood to continue flowing to the arterial branches during the procedure while providing an adequate landing zone for the adjoining component. One of the components may include a tapered portion near one end that can be received by a corresponding end of the other component. Alternatively, one of the components may include an invaginated end that is able to receive a corresponding end of the other component such that the position of each component is substantially fixed with respect to the other.04-25-2013
20130103131IMPLANT DELIVERY DEVICE ADAPTED TO BE ATTACHED TO OR INTERCONNECTED WITH A CATHETER, CATHETER AND METHOD - A device is intended to be attached to or interconnected with a medical implant, and intended to be attached to or interconnected with a catheter. The catheter is intended for implanting the implant.04-25-2013
20130123899Vascular Prosthesis and Methods of Use - An implantable vascular prosthesis is provided for use in a wide range of applications wherein at least first and second helical sections having alternating directions of rotation are coupled to one another. The alternating helical section includes a first and second helical portions each having a flange and having adjacent ends joined directly to one another to define an apex. Each helical portion has a widened flange portion adjacent to the apex, the widened flange portions extending into a space between the helical portions. The prosthesis is configured to conform to a vessel wall without substantially remodeling the vessel, and permits accurate deployment in a vessel without shifting or foreshortening.05-16-2013
20130123898MEDICAL DEVICE WITH ONE OR MORE SHEATHING TRANSITION MEMBERS - Medical device delivery systems and methods for making and using medical device delivery systems are disclosed. An example medical device delivery system may include an outer sheath. An inner catheter may be disposed within the outer sheath. The inner catheter may have a distal end. An implant may be releasably coupled to the inner catheter. The implant may be configured to shift between a first configuration where the implant is sheathed within the outer sheath and a second configuration where the implant is unsheathed. A sheathing transition member may be coupled to the inner catheter. The sheathing transition member may be configured to ease shifting of the implant from the second configuration to the first configuration.05-16-2013
20130123896EXTERNAL STEERABLE FIBER FOR USE IN ENDOLUMINAL DEPLOYMENT OF EXPANDABLE DEVICES - The present disclosure describes treatment of the vasculature of a patient with an expandable implant. The implant is constrained to a reduced delivery diameter for delivery within the vasculature by at least one sleeve. The implant can be constrained to other diameters, such as an intermediate diameter. The sleeves can be expanded, allowing for expansion of the diameter of the expandable implant, by disengaging a coupling member from the sleeve or sleeves from outside of the body of the patient. The expandable implant can comprise a steering line or lines which facilitate bending and steering of the expandable implant through the vasculature of a patient.05-16-2013
20130123897DELIVERY SYSTEMS AND METHODS FOR SHEATHING AND DEPLOYING AN IMPLANTABLE DEVICE - Systems and methods are disclosed for delivering a stent to a lumen internal to a body of a patient and for sheathing a stent just prior to an insertion procedure. One embodiment comprises a delivery device having a partially sheathed configuration, a fully sheathed delivery configuration, and a deployed configuration. A panchor (combination pusher and anchor) is configured to engage and limit proximal and distal movement of the implantable device. An outer sheath surrounds a distal portion of an inner member and retains the implantable device near the distal end. The outer sheath is slidably moveable relative to the inner member to deploy the implantable device. Proximal movement of a trigger results in movement of the outer sheath to deploy the implantable device. A sheathing mechanism is configured to crimp and fully sheathe the implantable device prior to a deployment procedure.05-16-2013
20130131775ENDOLUMINAL PROSTHESIS INTRODUCER - An endoluminal prosthesis introducer may include a rotatable inner cannula including a proximal end. The introducer may include a proximal tip disposed at the proximal end of the inner cannula and including a distal end. The introducer may include a retaining member including an engaging member extending radially outward. The retaining member may be disposed about the proximal end of the inner cannula. In response to rotation of the inner cannula with respect to the retaining member, the proximal tip may be longitudinally movable relative to the engaging member between a retaining configuration and a releasing configuration. The proximal tip and the engaging member may be spaced from one another by a greater longitudinal distance in the releasing configuration than in the retaining configuration.05-23-2013
20130131773DEVICE AND METHOD FOR ESTABLISHING AN ARTIFICIAL ARTERIO-VENOUS FISTULA - A shunt rivet for implantation between a first body space and a second body space in a patient, such as to treat chronic obstructive pulmonary disease.05-23-2013
20130131774ROTATION OPERATED DELIVERY DEVICE - An endovascular introducer which has a handle assembly, a stent graft deployment device and a stent graft retained on the stent graft deployment device. The handle assembly has a first part and a second part, the second part to be moved relative to the first part. The first part has a fixed portion to be gripped and held by a user and a rotating portion to be rotated. A one way clutch arrangement transfer rotation to co-acting first screw threads so that relative longitudinal motion between the first part and the second part occurs. The deployment device has a pusher assembly and a sheath to cover the stent graft on the pusher assembly. The sheath is connected to the second part so that rotation of the rotating portion causes retraction of the sheath.05-23-2013
20130131777BRANCH STENT GRAFT DEPLOYMENT AND METHOD - A deployment device for deploying a self-expanding fenestrated stent graft. The device includes a fenestrated stent graft retained on an introducer. The introducer includes a main catheter and an auxiliary catheter preloaded within the introducer and extending from distal the distal end of the stent graft, into the lumen of the stent graft and through the fenestration.05-23-2013
20130131776METHODS AND APPARATUS FOR TREATING A TYPE 2 ENDOLEAK FROM WITHIN AN ENDOLUMINAL STENT - A repair device includes a first elongate member, a second elongate member, and a seal member. The first elongate member includes a proximal end portion and a distal end portion and defines a lumen therebetween. The second elongate member includes a proximal end portion and a distal end portion and is movably disposed within the lumen. The distal end portion of the second elongate member is configured to puncture an endoluminal stent graft disposed within an artery of a patient and to be inserted, at least partially, into an aneurysm sac. The seal member is releasably coupled to the distal end portion of the first elongate member. The seal member is configured to be coupled to the endoluminal stent graft to seal an opening formed by the distal end portion of the second elongate member.05-23-2013
20130144371Stent and Stent Retrieval System and a Method of Pulling a Stent into a Tubular Member - A stent has an engagement member (06-06-2013
20130144372INTEGRATED STENT RETRIEVAL LOOP ADAPTED FOR SNARE REMOVAL AND/OR OPTIMIZED PURSE STRINGING - The present invention includes a braided stent and method of making the same. The braided stent has an integral retrieval and/or repositioning member. The stent includes a first open end, a second open end and a tubular body therebetween. The retrieval and/or repositioning member extends from and is interbraided into the braided tubular body. The retrieval and/or repositioning member includes an elongated portion extending from the first open end and a second section interlooping circumferentially about the first open end such that force exerted on the elongated portion causes radially contraction of the stent end and stent body.06-06-2013
20100280588PERCUTANEOUS METHOD AND DEVICE TO TREAT DISSECTIONS - Some embodiments of the present disclosure are directed to methods and systems for percutaneously treating dissections in a patient's vasculature, such as, without limitation, the aorta. The method can include deploying a catheter containing a collapsed anchoring element, frame, and cover through a first vessel to an entry point of the dissection. In some embodiments, the anchoring element can be secured to the second branch vessel. The frame can be expanded in the first branch vessel. The cover can be unfolded over at least a portion of the entry point. The cover then reduces blood flow into the entry point.11-04-2010
20090093870Method for Holding a Medical Device During Coating - The present invention is directed towards the holding of medical devices during manufacture to enable the application of therapeutic and/or protective coatings. More specifically, the present invention provides medical device holders that securely retain stents and other medical devices during the application of a coating while minimizing compressive and tensile forces applied to the stents. The invention avoids disruptions to coating quality due to holder blockage during coating deposition. The invention discloses an improved device containing a mandrel and frame that may improve coating uniformity by eliminating shadowing from the frame of the medical device holder when applying coatings to stents and other medical devices.04-09-2009
20080208311MULTIPLE INDEPENDENT NESTED STENT STRUCTURES AND METHODS FOR THEIR PREPARATION AND DEPLOYMENT - Blood vessels and other body lumens are stented using stent structures comprising a plurality of radially expansible rings where at least some of the rings comprise axially extending elements which interleave with axially extending elements on adjacent unconnected rings. The ring structures may be open cell structures or closed cell structures, and the axially extending elements will typically be formed as part of the open cell or closed cell structure.08-28-2008
20110218612MULTIFILAR CABLE CATHETER - A catheter device including an elongate catheter shaft comprising a multifilar cable tubing having a proximal portion and a distal portion. At least a part of the distal portion is more flexible than the proximal portion. The shaft includes two lumens, one of which houses a stent deployment shaft configured to deploy a self-expanding stent disposed in a distal extension of the shaft.09-08-2011
20110224772BIFURCATED GRAFT DEPLOYMENT SYSTEMS AND METHODS - A method for deploying an endoluminal vascular prosthesis using a deployment catheter that has at least a main graft portion and a first branch graft portion. The deployment catheter preferably comprises an elongate, flexible catheter body having a proximal end and a distal end, and an outer sheath and an inner core that is axially moveable with respect to the outer sheath. The catheter preferably comprises a main graft restraint that has a main graft release mechanism comprising a main graft sheath and a suture threaded through a plurality of the openings in the main graft sheath. The catheter further comprises at least one branch graft restraint comprising at least one branch graft release mechanism.09-15-2011
20100286756Catheter Device - A catheter device having a shaft that extends from a proximal end to a distal end to carry on its distal end a self-expanding implant for intraluminal advance on a guidewire and delivery of the implant to an implant site by proximal withdrawal of a sheath that lies radially outside the implant in the catheter, the catheter including a first shaft element to pull the sheath proximally and a second shaft element to push the implant distally to prevent the implant moving proximally with the sheath when the sheath is pulled proximally, wherein the second shaft element carries a stopper for abutting the implant, the stopper comprising proximal and distal portions having different radiopacities.11-11-2010
20130150944STENT GRAFTS FOR THE THORACIC AORTA - A method of temporarily reducing the diameter of a stent graft (06-13-2013
20130103134ENDOGRAFTS FOR PARALLEL ENDOLUMINAL GRAFTS - An endograft is provided for a blood vessel having a branch extending from said blood vessel, including a body having a wall defining a lumen and an exterior surface. The endograft body includes a first portion defining or being made to define a non-circular cross-sectional dimension, and a second portion defining a circular cross-sectional dimension. Modular systems including the endograft and methods for creating endografts according to the disclosure are described also.04-25-2013
20100292771Endovascular stent graft system and guide system - Apparatus and method for inserting a stent graft limb branch into a stent graft body disposed in a living being, the stent graft body having a trunk and an opening for receiving said branch. A guide element is inserted through a vessel of the living being to the vicinity of the branch receiving opening of the stent graft body. The guide element is manipulated in three dimensions to form a shape corresponding to the orientation of the branch receiving opening with respect to the position of the vessel, so that the guide element shape is varied, in situ, to the required shape despite any abnormalities in the shape and orientation of the vessel. The guide element, after formation into the proper shape, is inserted into the branch receiving opening of the stent graft body. The stent graft limb branch is then fed over the guide element until the distal end of the limb branch is received in the branch receiving opening of the stent graft body. The guide element itself is also novel.11-18-2010
20100318174IMPLANTABLE VASCULAR GRAFT - Disclosed is a tubular endoluminal vascular prosthesis, useful in treating, for example, an abdominal aortic aneurysm. The prosthesis comprises a self-expandable wire support structure having a tubular main body support and first and second branch supports. The prosthesis can have a plurality of radially outwardly extending barbs. The branch supports may articulate with the main body to permit the branches to pivot laterally from the axis of the main body throughout a substantial range of motion.12-16-2010
20100318173ENDOVASCULAR DEVICES/CATHETER PLATFORMS AND METHODS FOR ACHIEVING CONGRUENCY IN SEQUENTIALLY DEPLOYED DEVICES - A stent alignment system includes an implantable stent and catheter that allows the ability to precisely control translational and rotational position in a vessel of the implantable stent and catheter.12-16-2010
20100318172GUIDE WIRE AND METHOD FOR ITS USE - The present disclosure pertains to a guide wire (12-16-2010
20100318170PROXIMAL CATHETER FLAP FOR MANAGING WIRE TWIST - A stent delivery system for treating a diseased bifurcation vessel having a catheter with a securement feature. The delivery system includes a dual lumen catheter with one or more balloons and a specialized stent having a side port mounted on the balloon. The securement feature is a flap that retains a side branch guide wire near the catheter body and wherein the distal tip of the guide wire is positioned near the side port of the stent. At the bifurcation, the side branch guide wire is freed from the flap to advance into the side branch vessel through the stent side port.12-16-2010
20100318169DELIVERY SYSTEM FOR ENDOLUMINAL DEVICES - An introducer or delivery system for introducing implants or medical devices such as embolic protection devices within a patient allows deployment within vessels having a tortuous anatomy. The delivery system includes an actuator wire within the delivery catheter which enables the delivery catheter to be bent near a distal end thereof upon actuation of the actuator wire.12-16-2010
20130204342ORIENTATION MARKERS FOR ENDOVASCULAR DELIVERY SYSTEM - An endovascular stent graft delivery device has portion to remain outside a patient in use and a proximal portion to be introduced into a patient. The proximal portion has a dilator at the proximal end and a length extending module is fastened to the dilator and extends proximally. The length extending module has a proximal end which in use extends out of the patient. The dilator has a dilator marker and the length extending module has a first and second marker at the distal and proximal ends of the length extending module. The first marker and the second marker are at the same relative circumferential position on the length extending module so that the rotational position of the elongate body within the patient can be determined.08-08-2013
20130184806DEVICE AND METHOD FOR AORTIC BRANCHED VESSEL REPAIR - An aortic graft assembly includes a tubular component that defines a wall aperture having a proximal end that extends perpendicular to a major longitudinal axis of the tubular aortic component, and a tunnel graft connected to the wall of the tubular aortic component and extending from the wall aperture toward a proximal end of the tubular aortic component. The method for delivery of the aortic graft assembly includes delivering the aortic graft assembly through the wall aperture and into interferring relation with the tunnel graft.07-18-2013
20120283814Methods for Improving Stent Retention on a Balloon Catheter - A method of crimping a stent on a balloon of a catheter assembly is provided. A polymeric stent is disposed over a balloon in an inflated configuration. The stent is crimped over the inflated balloon to a reduced crimped configuration so that the stent is secured onto the balloon. The balloon wall membrane is wedged or pinched between the strut elements of the stent for increasing the retention of the stent on the balloon.11-08-2012
20120283813Tissue Penetration Device And Method - A medical device for canalization of a tissue comprises a radially expandable and crimpable or collapsible substantially tubular member that has a rear end, a front end, and a pattern of struts or a mesh of wires arranged in-between the rear end and the front end, arranged around an interior of the device. The tubular member has extensions, which are arranged towards the interior of the device in a first state of the device, and towards an exterior of the medical device in a second state of the device, wherein the second state of the medical device is the tubular member turned inside out. During storage, the device is restrained in a delivery catheter in the second state. During delivery the device turns outside in and digs into the tissue to create a channel therein, thus preventing or fixating debris or other matter to spread from the channel.11-08-2012
20120283812POLARIZABLE DELIVERY MECHANISM FOR MEDICAL DEVICE DEPLOYMENT - A medical device assembly having a polarizable delivery mechanism reversibly engaged with a medical device and a method used by an operator to deploy said medical device at a targeted site in a body vessel is provided. The polarizable release mechanism generally comprises a pusher element having a distal end including at least two tines; the tines having a proximal section and a distal section, the tines being capable of exhibiting polarizable properties. The medical device has an opening sized to receive and to detachably engage the distal section of the tines. The delivery mechanism has an engaged position in which the tines securely hold the medical device and a detached position in which the tines and medical device are substantially unengaged. The operator causes the delivery mechanism to move from the engaged position to the detached position by applying or removing an energy stimulus to change the polarization.11-08-2012
20130184805INTRODUCER SHEATH, PLACEMENT DEVICE FOR BLOOD VESSEL TREATMENT INSTRUMENT, AND METHOD FOR SHORTENING INTRODUCER SHEATH - A placement device for a blood vessel treatment instrument has an introducer sheath functioning as an outer tube, and also has an inner tube. The introducer sheath has a flexible tube-shaped sheath body and a hub into which the base end of the sheath body is inserted. The hub takes-up the base end of the sheath body into the hub by way of take-up shafts while slitting the base end of the sheath body by cutting blades, and thus the length of extension of the sheath body from the hub can be shortened.07-18-2013
20110288625Vessel Support Device and Methods for Supporting a Vessel - The present invention is directed to a vessel support member having opposing ends adapted to move in a circumferential plane, the support member configured for deployment in a substantially radial direction to support a substantial portion of the circumference of a vessel, the support member adapted to change between a first configuration and at least a second configuration, such that when in the first configuration, the support member is substantially linear or substantially planar, and as the support member is deployed and changes to at least the second configuration, one opposing end moves in a radial direction relative to the other opposing end, such that when in the second configuration the support member is substantially non-linear or substantially prismatic with a curved portion or region. Also provided is a method of supporting, and a kit for providing support to, a human or animal vessel, and a deployment means for deploying a support member.11-24-2011
20090036968DEVICE FOR MAINTAINING PATENT PARANASAL SINUS OSTIA - A device for maintaining a patent paranasal sinus ostium includes a tubular element having a proximal end, a distal end, and a center region between the proximal end and distal end. The tubular element has an insertion state and a deployment state. The tubular element is locatable in the sinus ostium when in the insertion state and expandable from the insertion state to the deployment state when located in the sinus ostium. In the deployment state, the center region confronts the sinus ostium with an outward radial force.02-05-2009
20110307048PRE-LOADED MULTIPORT DELIVERY DEVICE - A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.12-15-2011
20110313504DEVICE AND METHOD TO PREVENT OR TREAT OUTFLOW VEIN STENOSIS OF AN ARTERIOVENOUS FISTULA CONSTRUCTED WITH A SYNTHETIC VASCULAR GRAFT - Systems and methods are provided that reduce or prevent the occurrence of NIH, VR and the resulting VS in the VOT of a GAVF. The system may protect the venous outflow tract of a GAVF from the deleterious physical and biological factors that induce: pathological cellular and biochemical responses which cause neointimal hyperplasia, venous remodeling, thrombosis, venous stenosis, and GAVF-vein anastomotic stenosis, including: a fenestrated expandable stent; and a tubular extension extending from the fenestration. The method protects the venous outflow tract of a GAVF from the deleterious physical and biological factors that induce: pathological cellular and biochemical responses which cause neointimal hyperplasia, venous remodeling, thrombosis, venous stenosis, and GAVF-vein anastomotic stenosis, and include steps of inserting the device into a vein to be used as a VOT; expanding the device; and joining the tubular extension of the device to a GAVF.12-22-2011
20110313503Delivery System and Method for Self-Centering a Proximal End of a Stent Graft - A method for implanting a prosthesis centrally within a curved lumen includes loading a prosthesis into a delivery sheath, advancing the sheath in a patient towards the curved lumen to place at least the proximal end of the prosthesis within the curved lumen, and centering the proximal end of the prosthesis and/or the distal end of the sheath within the curved lumen. In a first advancing step, the outer catheter containing the inner sheath is advanced together towards the curved lumen to a location proximal of the curved lumen and, in a second advancing step, the inner sheath containing the prosthesis is advanced into the curved lumen to place at least the proximal end within the curved lumen while the outer catheter substantially remains at the location. After centering, the proximal end of the prosthesis is deployed centered within the curved lumen.12-22-2011
20130190854DRUG-ELUTING STENT AND DELIVERY SYSTEM WITH TAPERED STENT IN SHOULDER REGION - A drug-eluting stent delivery system for the treatment of edge restenosis in a blood vessel. The drug-eluting stent delivery system has a balloon disposed about at least a portion of a catheter, the balloon having a first end and a second end and a working length therebetween, the first end and the second end each including a tapered portion, each tapered portion being attached to the catheter, the balloon being inflatable from a collapsed configuration to an inflated configuration. A drug-eluting stent contacts a wall of the blood vessel to maintain the patency of the vessel. The drug-eluting stent has a first end and a second end, the first end and the second end each including a tapered portion, wherein the drug-eluting stent is disposed over the balloon such that at least a portion of the first end and the second end of the balloon are covered by the tapered drug-eluting stent. A method for making the same is also disclosed herein.07-25-2013
20120029607CONTROLLED RELEASE AND RECAPTURE PROSTHETIC DEPLOYMENT DEVICE - A delivery device for deploying and resheathing an expandable prosthesis and method of use thereof are described. The delivery device includes a fixed outer sheath and a pusher member that is configured for retracting in a proximal direction and resheathing the prosthesis. The device includes two plates engaging the pusher member, with a first plate configured engage the pusher member to prevent proximal movement and the other plate configured to engage the pusher member for distal movement.02-02-2012
20130197618Medical Device Package And Methods - A medical device package includes an elongate tubular holder having a first and a second detachable tip, and a medical device positioned within a cavity and contained within the holder via the first and second detachable tips. The medical device has a self-shaping bias and is loaded in opposition to the bias via contact with an inner surface of the holder defining the cavity. The first and second detachable tips may include snap-off tips, such that upon detachment the cavity is opened for removing the medical device. Related methodology is disclosed.08-01-2013
20130197619INDWELLING DEVICE DELIVERY SYSTEM - An indwelling device delivery system including a hollow shaft, a dilatable balloon mounted on a circumference of a distal part of the shaft, and an indwelling device mounted on a circumference of the balloon and expanded by dilatation of the balloon. The balloon has a plurality of protrusions for adhering to the indwelling device and the protrusions are constructed so as to elicit adhesion force based on physical adhesion due to van der Waals force by means of creating more surface area.08-01-2013
20130197620Stents with Profiles for Gripping a Balloon Catheter and Molds for Fabricating Stents - A radially expandable stent can comprise a proximal section tapering inward to a proximal end of the stent and a distal section tapering inward to a distal end of the stent. The tapered sections can be adapted to improve the attachment of the stent to the delivery system and to facilitate the delivery of the mounted stent into and through a bodily lumen.08-01-2013
20130197621SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY - Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.08-01-2013
20120035702STENT FOR VALVE REPLACEMENT - An expandable stent (02-09-2012
20120035701STENT STRUT APPOSITIONER - The teachings provided herein are generally directed to a method, device and system for use in reducing, inhibiting, or correcting a malapposed intraluminal device. An example of such an intraluminal device is a stent and, in some embodiments, the intraluminal device can be any device known to one of skill, the implementation of which might benefit from the teachings provided herein. In some embodiments, the intraluminal device is a cardiac stent.02-09-2012
20120296408METHODS AND SYSTEMS FOR PERFORMING VASCULAR RECONSTRUCTION - Devices, systems and methods are provided for performing intra-lumenal medical procedures in a desired area of the body. Stents, stent delivery devices and methods of performing medical procedures to redirect and or re-establish the intravascular flow of blood are provided for the treatment of hemorrhagic and ischemic disease states.11-22-2012
20120296407Apparatus And Method for Proximal-to-Distal Endoluminal Stent Deployment - A prosthetic delivery device is adapted for introducing a stent within a patient's vasculature through a reverse deployment procedure, beginning at a proximal location and finishing at a distal location. The device comprises: a guide tube, a rotation tube, and an outer tube. The guide tube threadably receives the rotation tube thereon. The rotation tube comprises a sheath rotatably secured at one end to overhang over a portion of the outer tube, which is received over a portion of the rotation tube, and which is fixedly secured to the guide tube. Rotating the rotation tube causes its translation relative to the outer tube. A stent crimped to be disposed beneath the sheath is forced to deploy proximally by relative movement of an annular deployment ring on the outer tube. A key on the outer tube is received within a key way of the sheath to prevent its rotation.11-22-2012
20120059448EVERTING DEPLOYMENT SYSTEM AND HANDLE - A stent deployment system, handle, and method of loading of a medical device are provided. The system includes an outer catheter having an inner liner extending past the end of the outer catheter and an inner catheter disposed within the outer catheter. The inner liner is inverted and attached to the inner catheter. Relative movement between the outer and the inner catheters can urge the inner liner to peel away from the medical device. A handle is disposed at the proximal end of the outer catheter, and may include a splitter configured to slice the wall of the tubular member. The handle may also include a rotatable mechanism that can be attached to the tubular member. Rotation of the rotatable mechanism retracts a portion of the tubular member into the handle and winds the sliced portion about the rotatable mechanism.03-08-2012
20130204343ENDOVASCULAR SYSTEM WITH CIRCUMFERENTIALLY-OVERLAPPING STENT-GRAFTS - A multi-component endovascular stent-graft system (08-08-2013
20130211493System to Deliver a Bodily Implant - A catheter system with a proximal end and a distal end means at the proximal end to actuate a device at the distal end of the system, and an actuator element (08-15-2013
20130211490Everolimus Eluting Bioabsorbable Renal Artery Stent For Renal Cancer And Inflammatory Disorders - Methods of treating renal cancers and other kidney-related inflammatory disorders with a bioabsorbable polymer scaffold (such as a stent) are described. The treatments are provided as alternative to complete or partial surgical removal of a diseased kidney.08-15-2013
20130211491ASSEMBLY COMPRISING A RING FOR ATTACHMENT IN A PASSAGE SURROUNDED BY BODY TISSUE AS WELL AS AN APPLICATOR FOR FITTING THE RING IN THE PASSAGE - The present invention relates to an assembly comprising: 08-15-2013
20130211492IMPLANT FOR INFLUENCING THE BLOOD FLOW IN ARTERIOVENOUS DEFECTS - The invention relates to an implant (08-15-2013