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Expandable stent with constraining means

Subclass of:

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

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

623100110 - Stent combined with surgical delivery system (e.g., surgical tools, delivery sheath, etc.)

Patent class list (only not empty are listed)

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Entries
DocumentTitleDate
20080262593Multi-layered stents and methods of implanting - A method of percutaneously delivering a multi-layered stent assembly to a desired implantation location of a patient including the steps of radially compressing a multi-layered stent assembly to a compressed size for implantation in a patient, the multi-layered stent assembly including a first stent, a second stent coaxially positioned within at least a portion of a length of the first stent, and a valve, wherein the first stent comprises at least one different material property than the second stent. The method further includes delivering the multi-layered stent assembly to the desired implantation location of the patient using a delivery system and substantially simultaneously expanding the first stent and the second stent of the multi-layered stent assembly at the desired implantation location to a radially expanded size that is larger than the compressed size.10-23-2008
20130030514Introducer With Extension - A stent graft delivery device (01-31-2013
20090299460Bifurcated Stent and Delivery System - A delivery system has a stent and a balloon The stent has a first section made of a plurality of interconnected framework members which define a plurality of potential side branches. The balloon is a dual lumen balloon that can inflate from the proximal end to the distal end with a plurality of protrusions and/or herniations.12-03-2009
20110196473METHODS 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, disposing an ePTFE interlayer member between the first and second ePTFE tubes, 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.08-11-2011
20110196472STENT DELIVERY SYSTEM - A stent delivery system includes a self-expandable stent, a shaft section having a guide wire lumen, and a sheath having distal portion containing the stent. The stent is located at a position which is on the shaft section and near the distal end of the shaft section. The stent delivery system has a stent proximal portion fixing wire and a breaking member. The stent proximal portion fixing wire has one end portion and the other end portion which are fixed to the shaft section, and also has an intermediate portion engaged with a proximal portion of the stent. The breaking member breaks the stent proximal portion fixing wire to release the stent from the engagement.08-11-2011
20100114291Introducer for Deploying a Stent Graft in a Curved Lumen and Stent Graft Therefor - A stent graft (05-06-2010
20130079864DISTAL DETACHMENT MECHANISMS FOR VASCULAR DEVICES - A system for delivering an expandable implant into the vasculature of a patient, including an elongated core element having a proximal end accessible exterior to the patient and a distal end including at least one feature for engaging a proximal portion of the implant in a collapsed state. The system further includes an expansion limiter having an inner diameter and a length sufficient to cover the proximal portion of the implant and to retain the proximal portion in the collapsed state, and at least one elongated member having a distal end connected to the expansion limiter and a proximal end accessible exterior to the patient to enable proximal movement of the expansion limiter to release the implant.03-28-2013
20130035751THERMAL ENERGY APPLICATION FOR PREVENTION AND MANAGEMENT OF ENDOLEAKS IN STENT-GRAFTS - Apparatus (02-07-2013
20090171435IMPLANTABLE GRAFT DEVICE HAVING TREATED YARN AND METHOD FOR MAKING SAME - An implantable graft device having treated yarn is disclosed. The device comprises a graft body forming a lumen defining a longitudinal axis and comprising proximal and distal ends. The graft body comprises a woven fabric having warp yarns aligned in a first direction and a weft yarns aligned in a second direction. At least one of the weft yarns and the warp yarns has an agent applied thereto defining treated yarns of the graft body.07-02-2009
20130041451PROSTHESIS DEPLOYMENT SYSTEM FOR OPEN SURGICAL REPAIR - A deployment system for open surgical repair of a body vessel is provided. The system includes a prosthesis retained in a compressed configuration by a retainer sheath. A splitting member can include a portion disposed internally within the retainer sheath and a portion accessible from at least one of the outer ends of the retainer sheath. Retraction of the accessible portion toward a middle of the prosthesis can split the wall of the retainer sheath to allow for expansion of a segment of the prosthesis for engagement with a first portion of the body vessel. Another segment of the prosthesis is expanded for engagement with a second portion in order for the prosthesis to interconnect the first and second portions of the body vessel. A barrier segment may be disposed within the retainer sheath between the splitting member and the prosthesis.02-14-2013
20120185032VASCULAR BAND - A vascular band (07-19-2012
20120185031ROTARY AND LINEAR HANDLE MECHANISM FOR CONSTRAINED STENT DELIVERY SYSTEM - A stent delivery system and a method for implanting a stent are provided. The 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 shaft portion. The 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. Proximal and distal constraining members releasably connected to the stent and having a first position and a second position are also included. The proximal and distal constraining members 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. A drive system configured to simultaneously move the proximal and distal constraining members is provided, including a threaded drive shaft in mechanical communication with a rotatable handle.07-19-2012
20090125094SHEATH FOR INTRAVASCULAR INFLATABLE STRUCTURES, FOR EXAMPLE TO EXPAND STENTS - One or more sheaths limit radial expansion of an expansion structure, for example a multi-balloon catheter structure, while not appreciably limiting bending, facilitating the use of flexible stents in tortuous passages to, for example, perform angioplasty and/or expand stents.05-14-2009
20090306761PROSTHESIS AND DELIVERY SYSTEM - A prosthesis delivery system including a prosthesis mounted on an elongate member. The prosthesis has a locking member positioned on the prosthesis. The locking member includes a reduced diameter portion with two opposing surfaces that are configured to engage opposing proximal and distal sides of a radially extending member on the elongate member to lock or limit the longitudinal position of the prosthesis on the elongate member during delivery of the prosthesis to a treatment site.12-10-2009
20090306760PROSTHESIS AND DELIVERY SYSTEM - A prosthesis delivery system including a prosthesis mounted on an elongate member. The prosthesis has longitudinally offset first and second locking members positioned on the prosthesis. The first and second locking members are configured to engage opposing proximal and distal sides of a radially extending member on the elongate member to lock or limit the longitudinal position of the prosthesis on the elongate member during delivery of the prosthesis to a treatment site.12-10-2009
20130073026DEVICE AND METHOD FOR TREATING VASCULAR ABNORMALITIES - A vascular device is provided that includes a tubular structure and an occluding structure. The tubular structure has inner and outer layers, with the occluding structure located between the inner and outer layers. Each of the inner and outer layers may define a different pick count, and the tubular structure may include a leading edge at a transition between the pick counts. The leading edge may be disposed at the distal end of the vascular device when the device is deployed from a delivery device. Furthermore, the occluding structure may have first and second layers formed by the inversion or eversion of the occluding structure and the subsequent coupling of its free ends to form a continuous structure. Thus, any loose ends may be sealed to minimize unraveling and/or shifting of the occluding structure within the tubular structure. A method of making the vascular device is also provided.03-21-2013
20110015718STENT GRAFT - Some embodiments are directed to a deployment system for deploying a stent graft within a passageway, comprising a delivery catheter having an outer sheath, a proximal end, and a distal end, a stent having a first end and a second end, a graft having a first end and a second end, and at least one connecting element extending from the second end of the stent to the first end of the graft so as to connect the stent to the graft. In some embodiments, the stent can be supported within the outer sheath at a first axial position in a collapsed state, and the graft can be supported within the outer sheath at a second axial position different than the first axial position in a collapsed state, such that the stent does not overlap or substantially overlap the graft in the collapsed state within the deployment system.01-20-2011
20090299461BALLOON 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 from 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
20120226342Stent with Reduced Profile - Medical devices, systems, and techniques are described for reducing the profile of a stent. In one example, a stent having a reduced state and an expanded state includes a plurality of interconnected annular rings arranged about a longitudinal axis, each of the plurality of annular bands comprising a plurality of peaks and a plurality of troughs, wherein in the reduced state, at least one of the plurality of peaks of at least one of the plurality of rings is positioned a first distance from the longitudinal axis, another one of the plurality of peaks being positioned a second distance from the longitudinal axis, the first distance being less than the second distance, and wherein in the expanded state, the plurality of peaks of the stent being positioned at substantially the same distance from the longitudinal axis.09-06-2012
20090030497Retention Wire For Self-Expanding Stent - A delivery system for self-expanding stents is provided. The delivery system includes a wire releasably attached to a portion of the self-expanding stent. The wire restrains movement of the stent when the stent is released from the delivery system. Thus, more accurate placement of the stent may be possible.01-29-2009
20130066413SURGICAL APPARATUS FOR ANEURYSMS - The present application discloses a surgical apparatus for aneurysms comprising: a stent, a delivery guide wire, an introducer sheath and a microcatheter, wherein: the stent is a self-expanding stent; the delivery guide wire outside of which the stent is restrained to is provided in a lumen of the introducer sheath; the introducer sheather is connected with the microcatheter, with lumnes communicating, to form a passageway through which the delivery guide wire and the stent are delivered into a human body. The surgical apparatus for aneurysms provided in the examples of the present application is able to deliver and release the stent which has high density and is super soft to a vascular lesion. A lattice structure of the stent is of high coverage at the vascular lesion such that the stent released into the vessel prodeces the same effects as healing of parent vessel, and thus improves the treatment of vascular aneurysms.03-14-2013
20130066414EVERTING STENT AND STENT DELIVERY SYSTEM - A stent delivery assembly is provided that includes a microcatheter, a delivery tube, a stent, and an elongate release member. The stent can have a first end that is (i) disposed within a delivery tube lumen and (ii) constrained by the delivery tube from radially expanding beyond a delivery tube lumen diameter. The stent can have a second end that is (i) disposed outside of a delivery tube distal end and (ii) substantially radially unconstrained by the delivery tube to expand beyond the delivery tube lumen diameter. The elongate release member can be moveable between first and second positions to engage or release the stent.03-14-2013
20110022152DOUBLE LAYERED BALLOONS 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 balloon catheter devices carrying stents (01-27-2011
20120116494IMPLANTABLE MEDICAL ENDOPROSTHESIS DELIVERY SYSTEM - Implantable medical endoprosthesis delivery systems and articles are provided.05-10-2012
20130166013Flared Ostial Endoprosthesis and Delivery System - An intraluminal endoprosthesis having a conically shaped first end and a tubular shaped balloon-expandable stent for a main body is disclosed. The conically shaped first end may form a flare to the main body and is particularly well suited for in ostium use. The first end is preferably self-expanding and the main body is preferably balloon-expandable. Also disclosed is a delivery device for delivering intraluminal ostial endoprosthetic devices, especially those disclosed herein, to a site for deployment. The delivery device may comprise an over-the-wire system or may comprise a rapid-exchange shuttle system. The self-expanding portion of the endoprosthesis is encapsulated in a sheath or other restraining apparatus on the delivery device. The balloon-expandable stent portion of the endoprosthesis is crimped onto a balloon delivery device. The delivery system and endoprosthesis of the present invention allow the endoprosthesis to be partially expanded and relocated if it is determined that it is not located in the proper location. To aid in positioning, the delivery device may comprise marker bands.06-27-2013
20130166014THERMOELASTIC AND SUPERELASTIC NI-TI-W ALLOY - A radiopaque nitinol stent for implantation 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 including tungsten. The added tungsten in specified amounts improve the radiopacity of the nitinol stent comparable to that of a stainless steel stent of the same strut pattern coated with a thin layer of gold. Furthermore, the nitinol stent has improved radiopacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility.06-27-2013
20100076542COATED EXPANDABLE SYSTEM - The present invention relates to an expandable system consisting of a catheter balloon and a crimped stent. The system can include a rapid release kinetic of one active agent with a slow release kinetic of a second active agent, due to the fact that the catheter balloon is coated with a first active agent adapted for rapid release and the stent is coated with a second agent adapted for slower release. The catheter balloon can be coated with a cytotoxic amount of a first active agent and the stent can be coated with a cytostatic amount of a second active agent.03-25-2010
20080294234STENT GRAFTS FOR THE THORACIC AORTA - A method of temporarily reducing the diameter of a stent graft (11-27-2008
20120271399High Metal to Vessel Ratio Landing Zone Stent-Graft and Method - A method includes covering an ostium of a branch vessel emanating from a main vessel with a proximal landing zone of a high metal to vessel ratio landing zone stent-graft, wherein a metal to vessel ratio of the proximal landing zone when deployed is sufficiently high to encourage tissue ingrowth around the proximal landing zone yet is sufficiently low to ensure perfusion of the branch vessel through the proximal landing zone. The method further includes covering an aneurysm of the main vessel with an exclusion zone of the high metal to vessel ratio landing zone stent-graft, the exclusion zone being formed of graft material. By forming the exclusion zone of graft material, excellent exclusion of the aneurysm is achieved.10-25-2012
20110282427PARTIALLY CRIMPED STENT - A crimping method that crimps a stent over multiple catheters. The method includes differentially crimping a stent on certain portions of a balloon catheter so that a second catheter can be threaded through the uncrimped portion of the stent and exit through the links of a conventional stent design or through a specific hole in the stent designed for a branched vessel.11-17-2011
20110137403INTRODUCER FOR ENDOVASCULAR IMPLANTS - An introducer assembly for introducing a stent-graft or other device into a vessel of a patient is provided with a dilator tip which is naturally curved, preferably to be substantially a U-shape. The dilator tip is flexible so as to be able to become substantially straight with a guide wire therein and yet to be able to curve back towards its natural curvature during deployment of an implant. The curvature of the dilator tip can ensure that the dilator tip does not cause damage to the vessel wall during deployment of an implant carried thereon, as can occur with straight dilator tips.06-09-2011
20080269869Intraluminal 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 stent body with a plurality of struts. The stent body is expandable from a compressed configuration to a deployed configuration. The struts include at least one sliding assembly for locking the stent body in the deployed configuration. The at least one sliding assembly allows sliding of adjacent struts one to another while the stent body is expanding. The system further includes a catheter and the stent disposed on a portion of the catheter. The method includes positioning an intraluminal stent with a catheter within a vessel. The stent includes minimized overlap of adjacent struts while in a compressed configuration. The stent is expanded from the compressed configuration to an deployed configuration where it is locked. Adjacent struts slide relative one to another while the stent is expanding.10-30-2008
20110301689Stent Delivery Device - A delivery device is provided for delivering a stent device. The stent device (12-08-2011
20120010696THORACIC DEPLOYMENT DEVICE AND STENT GRAFT - A stent graft introducer for intraluminal deployment of a stent graft (01-12-2012
20110288626Catheter system for introducing an expandable heart valve stent into the body of a patient, insertion system with a catheter system and medical device for treatment of a heart valve defect - The invention relates to catheter system for introducing an expandable heart valve stent (11-24-2011
20090138066Implant Deployment Apparatus - A delivery system including a restraining member maintains a collapsed implant in its collapsed state for delivery through a small passageway to a desired site in a mammalian body. Once the implant is positioned at the desired site, the restraining member is released so that the stent may expand or be expanded to its expanded state. In a preferred embodiment, the restraining member comprises a sheet of material that surrounds at least a portion of the collapsed stent. Portions of the restraining member are releasably coupled to one another with a low profile thread-like member or suture.05-28-2009
20100268317Stent Graft Restraining Mechanism for a Delivery System (Catheter) - A prosthesis delivery system comprises a tip having a lumen, a first end and a second end; a sleeve coupled to the tip second end; a spindle comprising a spindle body and a plurality of projections extending radially outward from the spindle body, each projection having a first edge and a second edge, the first edge facing the tip and the second edge extending from the first edge, being angled toward the tip first end, and extending toward the sleeve; and endoprosthesis having an undulating spring with a plurality of crown portions having apices, where the crown portions extend over at least one of the first or second edges and the sleeve radially constrains the apices.10-21-2010
20120035707METHODS OF USING IMPLANTABLE MEDICAL DEVICE DETACHMENT SYSTEM - Implantable medical device detachment methods are provided using a carrier member having a compressible portion at a distal end thereof. The compressible portion is moved to a compressed condition to allow an engagement member of the system to releasably engage an implantable device, such as an embolic coil. The carrier member and associated implantable device are fed through a body vessel to a target location, where the device is disengaged from the engagement member. The compressible portion then moves from the compressed condition to an elongated condition to completely separate the implantable device from the engagement member.02-09-2012
20120035706BLOOD PERFUSION DEVICE DELIVERY SYSTEM - A delivery system deploys a prosthesis for open surgical repair of a body vessel. The system includes a sleeve to retain segments of a prosthesis in a compressed configuration and retraction members. The sleeve has outer segments associated with each end of the prosthesis. Retraction of the retraction members removes the outer segments of the sleeve from the prosthesis outer ends to allow for expansion of the outer ends of the prosthesis in an outside-in direction. The system can include a handle and an actuation member movably attached to the handle. The actuation member is coupled to the sleeve outer segments so that movement of the actuation member corresponds to removal of the sleeve. The system can include elements to retain the sleeve outer segments to the actuation member and to redirect the retraction members to a direction different from the axis of the prosthesis.02-09-2012
20120109280Torsion Constrained Stent Delivery System - A stent delivery system and a method are provided. The stent delivery system includes an inner and outer elongate shaft. The outer shaft is coaxially positioned over at least a portion of the inner shaft and the inner shaft is rotatably positionable relative to the outer shaft about a longitudinal axis from a first to a second rotational position. The stent delivery system also includes a stent positioned on at least a portion of the inner shaft and having a constrained and an expanded configuration. Proximal and distal constraining members releasably connected to the stent. The proximal and the distal constraining members cooperatively apply a torsional force to at least a portion of the stent in the constrained configuration and the inner and outer shafts in the first rotational position.05-03-2012
20110137402STENT DEVICE DELIVERY SYSTEM WITH A HEAT SHRINK RESISTANT SUPPORT MEMBER - A stent device delivery system and method of making. The stent device delivery system includes a stent device and an outer sheath overlaying the stent device in a radially compact, delivery configuration of the stent device. The system also includes a pull member for pulling proximally on to retract the outer sheath, wherein a portion of the outer sheath is heat shrunk radially onto a relatively heat shrink resistant support member in order to capture a distal portion of the pull member radially between the outer sheath and the heat shrink resistant support member.06-09-2011
20100274344Stent Delivery System Having Stent Securement Apparatus - A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a stent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation means coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation means; and a securement component coaxially mounted on the catheter, axially within the expandable inflation means, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.10-28-2010
20090281612BALLOON CATHETER STENT DELIVERY SYSTEM WITH RIDGES - A balloon catheter and stent delivery system for medical treatment of a patient includes a balloon having a pattern of ridges in an initial deflated state. The ridges may cooperate with structural elements of a stent crimped onto the balloon, to increase and enhance longitudinal retention of the stent while the catheter system is advanced or withdrawn. Upon inflation, the balloon recovers to an inflated shape having a cylindrical working portion. The balloon catheter thus provides for uniform expansion of the stent when the balloon is inflated. The present invention also tends to protect the leading or distal end of the stent during advancement, and tends to protect the leading or distal end of the stent during advancement, and tends to protect the proximal end of the stent during any withdrawal of the catheter system.11-12-2009
20120143303DEVICE TO RELEASE A SELF-EXPANDING IMPLANT - A device to release from an implant bed in the device a self-expanding implant by pulling back proximally, the length of the implant, a rolling membrane with an inner sleeve that extends distally to the distal end of the implant and an outer sleeve that extends proximally, from the distal end of the inner sleeve, the outer sleeve, during said release, pulling the distal end of the inner sleeve back proximally over the abluminal surface of the remainder of the inner sleeve, proximal of its distal end, the device having a slitter, that is caused to move proximally contemporaneously with the outer sleeve, to slit the inner sleeve progressively, starting at a distal point in the inner sleeve, and progressing proximally along the length of the inner sleeve.06-07-2012
20100057185Sliding Split-Sleeve Implant Compressor - A system and method for loading an endoprosthesis, such as a stent or valve, into an introducer is provided that permits interventionalists to load the endoprosthesis easily at the bedside. The system can include a compressor for compressing the endoprosthesis to a cross-sectional area less than the cross-sectional area of the introducer lumen. The compressor has a funnel portion at one end where the un-compressed endoprosthesis can be introduced and another end where the introducer and sleeves of a split sleeve device are inserted. The sleeves conform to the compressor passage and surround the endoprosthesis to collapse the endoprosthesis. The split sleeve device also includes a mounting device coupled to the sleeves. The endoprosthesis is compressed and loaded into the introducer by the relative movement of the mounting device and the compressor, where the endoprosthesis remains generally stationary while being compressed and loaded in order to avoid potentially compromising the endoprosthesis.03-04-2010
20090264980DEVICE DELIVERY CATHETER HAVING A CURVED DISTAL TIP - A catheter for delivery of intraluminal and expandable devices. The catheter is provided with a flexible curved tip distal to the device loaded onto the catheter for delivery to a desired site within a body conduit. The curved distal tip causes the catheter to rotate to a preferred rotational orientation, which may be desirable for any device having asymmetric features, particularly when used in tortuous body conduits.10-22-2009
20080281398STENT DELIVERY AND DEPLOYMENT SYSTEM - A stent delivery and deployment system for use primarily with self-expanding stents, incorporating a traction tube extending over the length of the diametrically compacted and constrained stent and everting back over itself, with the outer everted portion of the traction tube preferably extending to the proximal end of the delivery system. A constraining sleeve is provided between the inner, non-everted portion and outer, everted portion of the traction tube, the constraining sheath extending over the length of the constrained stent prior to deployment and diametrically constraining the diametrically compacted self-expanding stent. The application of tension to the proximal end of the traction tube causes the constraining sheath to move in a proximal direction, freeing the constrained stent as it moves and allowing the stent to deploy against the wall of the body conduit within which it is located during the deployment process.11-13-2008
20100137968STENT DELIVERY SYSTEM WITH IMPROVED RETRACTION MEMBER - An expandable stent and delivery system is provided for treating body vessel defects, such as partially occluded blood vessels and aneurysms. The delivery system includes a core member having a non-cylindrical retraction member with extending portions configured to extend between struts of the stent. The stent includes enlarged anchor members that cooperate with the retraction member to secure the stent to the core member for movement within a delivery catheter and deployment to a body vessel defect. The extending portions provide a greater contact area than would be possible with a cylindrical retraction member, which is especially beneficial when retracting a partially deployed stent into the catheter.06-03-2010
20090030496INSERTION SYSTEM FOR STENTS, COMPRISING TENSION-COMPRESSION KINEMATICS - The present invention relates to a device for inserting a self-expanding stent into a body vessel. The device comprises a tube, a pushing element and a grip having a housing via which the pushing element is secured on the grip. Further, the device comprises a stent carrier and a moveable element, the latter of which is guided in the housing of the grip and is coupled to the pushing element. Moving the movable element in the proximal direction effects a movement of the pushing element in the distal direction and a movement of the tube in the proximal direction.01-29-2009
20110208287Stent Delivery Catheter With Balloon Control Bands - A stent delivery catheter including a catheter tubing defining a lumen therethrough, a balloon disposed near a distal end of the catheter tubing and moving between deflated and inflated states, and proximal and distal balloon control bands concentrically arranged around respective proximal and distal end portions of the balloon. The proximal balloon control band has a proximal end located proximally of a proximal end of the balloon and a distal end located adjacent a proximal end of a received unexpanded stent. The distal balloon control band has a proximal end located adjacent a distal end of the received unexpanded stent and a distal end located distally of a distal end of the balloon. The balloon control bands each have a diametric cross-section larger than the balloon in an uninflated state and the unexpanded stent received over the balloon to impede axial movement of the unexpanded stent off of the balloon.08-25-2011
20090182411PLEATED DEPLOYMENT SHEATH - A deployment sheath for medical devices is provided that includes one or more pleats in its pre-deployment state that are allowed to open during deployment so as to facilitate easier device deployment and sheath removal. Preferably, the sheath is removed by everting it over itself during the delivery process. By orienting the pleats along the length of the sheath, preferably helically around the sheath, the sheath undergoes a predictable enlargement during deployment so as to relieve friction of the everted sheath sliding along itself during deployment. This allows the sheath to be removed with less tension than previous everting sheath constructions and assures more accurate device placement in a patient.07-16-2009
20090182412EXPANDABLE STENT DELIVERY SYSTEM WITH OUTER SHEATH - According to aspects described herein, there is disclosed an improved hot balloon catheter delivery system for shape memory tubular stents is disclosed. An outer sheath is provided on the delivery system that facilitates stent placement on a balloon during delivery through an endoscope. In one embodiment, the stent may be positioned between radiopaque markers/electrodes and the balloon may be heated. The stent may be prevented from moving proximally relative to the catheter as the delivery system is tracked through the patient's anatomical passageways. The outer sheath may be positioned to ride over the proximal cone of the hot balloon catheter and abut the proximal end of the stent to facilitate proper alignment of the balloon for deployment. Upon deployment of the stent in an appropriate position, the sheath may be pulled away from the stent to expose the proximal cone of the balloon and thereby allow balloon and stent expansion.07-16-2009
20090187238SYSTEM AND METHOD FOR DEPLOYING SELF-EXPANDABLE MEDICAL DEVICE WITH COATING - A system and method for providing a coating on a self-expandable medical device such as a stent are disclosed. The system comprises a coating applicator at the distal end of a sheath which delivers coating material onto the stent as the stent is deployed from the sheath. Thus, the stent may be loaded into the sheath without a coating on the stent, thereby avoiding shearing off or damaging the coating during loading. Also, the coating is applied only as the stent exits the sheath, thereby avoiding shearing off or damaging the coating during deployment.07-23-2009
20090138065DOUBLE LOADED STENT DELIVERY SYSTEM - A delivery system that is preloaded with a sleeve member and a metallic stent and method of delivery of the sleeve member and stent at a target stricture site are described. The method of delivery occurs in two stages. The first stage involves deployment of the sleeve member and the second stage involves deployment of the metallic stent within the interior region of the sleeve member. The sleeve member may be formed from a shape memory plastic which may also be biodegradable. The delivery system provides a method of deploying a covered stent that would not otherwise be possible because of limited introducer space.05-28-2009
20080319526Percutaneous valve, system and method - An apparatus, system, and method for percutaneous valve replacement and/or augmentation. The apparatus includes a valve having a valve frame, a valve leaflet coupled to the valve frame, and a thread passing over the valve frame to hold the valve frame in a partially deployed state, where removal of the thread allows the valve frame to expand toward a deployed state. Use of the thread to hold the valve frame allows for staged deployment of the valve.12-25-2008
20090024202CEA SYSTEM AND METHOD FOR DELIVERING A SELF-EXPANDING STENT - Self-expanding stent delivery systems and methods having an introducer that receives a delivery catheter. The delivery catheter includes an outer body, an inner body and a stent loaded onto a stent bed within the inner body. The outer body receives the inner body with the stent loaded on the stent bed thereof. The outer body helps constrain the stent in its undeployed state in the stent bed until the stent is deployed by retraction of the outer body of the delivery catheter when the stent is identified as positioned across an intended treatment site. At least one anchoring mechanism provided on the inner body helps maintain the undeployed loaded stent appropriately in the stent bed during deployment. The at least one anchoring mechanism can include radiopaque material to increase fluoroscopic visualization of the stent during deployment, and the self-expanding stent can be a bio-absorbable material including drugs or other bio-active agents incorporated therein or provided thereon. The at least one anchoring mechanism can instead comprise a set of at least two bumpers between which the stent is loaded until deployed by retraction of the outer body of the delivery catheter when the stent has been appropriately positioned across an intended treatment site. After deployment of the stent at the intended treatment site, removal of the inner body and outer body of the delivery catheter and of the introducer occurs. Reliable and accurate emplacement of the stent across an intended treatment site is rendered more likely as a result.01-22-2009
20090024201APPARATUS AND METHOD FOR DEPLOYING SELF-EXPANDING STENTS - An assembly for delivering a stent to an intraluminal location comprising a catheter having an inner member and an outer member, a stent positioned between the inner member and the outer member at the catheter distal end, and a cutter/slider/deployment mechanism slidable secured to the catheter proximal end. A user may vary the length of the catheter by slidably advancing the cutter/slider/deployment mechanism along the catheter, whereby excess portions of the catheter are cut away. When the desired length is achieved, the user can secure the cutter/slider/deployment mechanism to the catheter to prevent further slidable advancement. The user may also vary the configuration of the catheter handle by adding or removing a removable platform from the handle. Upon stent deployment, the stent is released from the outer member, and the stent will expand as desired.01-22-2009
20120078343METHOD AND APPARATUS FOR THE ENDOLUMINAL DELIVERY OF INTRAVASCULAR DEVICES - A dual-balloon delivery catheter system includes a carrier segment that is a lead/carrier balloon or mandrel at a distal portion of a catheter. The carrier segment is sequentially arrayed with a more proximally positioned delivery segment, wherein the delivery segment is a delivery balloon or mandrel. The first carrier segment expands the stent-valve a sufficient amount to receive the delivery segment after the carrier segment is moved away from the sent-valve. The delivery segment is then positioned at the target site and the stent-valve is then deployed.03-29-2012
20090254170Branch stent graft deployment and method - A deployment system for introducing stent grafts which have a side arm or into which a side arm can be deployed. For instance the stent graft can be deployed into the thoracic arch of a patient. The deployment system including an introducer (10-08-2009
20080215131METHOD FOR LOADING A MEDICAL DEVICE INTO A DELIVERY SYSTEM - A process to load a medical device comprising a shape memory material into a delivery system is described herein. According to one aspect, the method includes applying a force to the medical device to obtain a delivery configuration thereof, where the device is at a first temperature within an R-phase temperature range of the shape memory material during application of the force. The medical device is cooled in the delivery configuration to a second temperature at or below a martensite finish temperature of the shape memory material. The force is then removed from the medical device, and the device is loaded into a delivery system. Preferably, the medical device substantially maintains the delivery configuration during the loading process.09-04-2008
20100234933Prosthesis Delivery Apparatus and Methods - A self-expanding prosthesis delivery system having an outer tubular structure and an inner tubular structure adapted for tracking over a guidewire and disposed in the outer tubular structure where the outer tubular structure and inner tubular structure form a fluid fillable space, which when filled with a fluid forms a fluid column that provides column strength from the delivery system handle to the stop of the delivery system.09-16-2010
20090076586Device and Method for ReShaping Mitral Valve Annulus - Devices and methods for reshaping a mitral valve annulus are provided. One preferred device is configured for deployment in the right atrium and is shaped to apply a force along the atrial septum. The device causes the atrial septum to deform and push the anterior leaflet of the mitral valve in a posterior direction for reducing mitral valve regurgitation. Another preferred device is deployed in the left ventricular outflow tract at a location adjacent the aortic valve. The device is expandable for urging the anterior leaflet toward the posterior leaflet. Another preferred device comprises a tether configured to be attached to opposing regions of the mitral valve annulus.03-19-2009
20090076585Device for loading a self-expandable prosthesis into a sheath - An assembly comprising: a protective sheath and a loading device for loading a self-expandable prosthesis into said sheath, the loading device having a conical distal section, which radially compresses the prosthesis and an annular lip that engages with the interior of the distal end of said sheath to guide the prosthesis into the sheath whilst protecting the sheath from damage.03-19-2009
20120035704PROCESS FOR LOADING A STENT ONTO A STENT DELIVERY SYSTEM - The present invention relates to a stent delivery system and a process for mounting a stent onto a delivery system. More specifically, the present invention relates to a method of loading a stent onto a balloon and mounting the stent balloon assembly onto a catheter. The premounting of the stent onto the balloon subassembly allows the stent to be crimped in a way that the crimping recoil can be compensated and stent retention is kept at a maximum.02-09-2012
20130218256Polymer Scaffold Sheaths - A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. A sheath pair is placed over the crimped scaffold after crimping to reduce recoil of the crimped polymer scaffold and maintain scaffold-balloon engagement relied on to hold the scaffold to the balloon when the scaffold is being delivered to a target in a body. The sheath pair is removed by a health professional before placing the scaffold within the body.08-22-2013
20120143302MEDICAL APPARATUS AND METHOD OF MAKING THE SAME - A catheter assembly includes a catheter having a proximal end and a distal end; an expandable device releasably attached to the catheter near the distal end; a generally tubular constraining sleeve extending around and compressing the device to an outer peripheral dimension suitable for endoluminal delivery; a tip fixedly secured to the distal end of the catheter; and a bridge member disposed between the tip and the expandable device so as to fill a gap therebetween as the catheter assembly is bent during endoluminal delivery of the expandable device to a treatment site.06-07-2012
20120143304TRANSLUMINAL DELIVERY SYSTEM - There is disclosed herein a transluminal delivery system for a self-expanding luminal prosthesis, the system comprising an inner catheter component (06-07-2012
20090254169DELIVERY CATHETER WITH CONSTRAINING SHEATH AND METHODS OF DEPLOYING MEDICAL DEVICES INTO A BODY LUMEN - A delivery catheter includes a constraining sheath coupled to a distal end of the catheter, and a medical device, such as an embolic protection device (EPD) or a stent, constrained by the sheath. A wire may extend proximally from the constraining sheath and be coupled thereto. A proximal pulling force on the wire causes the wire to tear the constraining sheath, thereby releasing the medical device from a constrained configuration to an expanded configuration.10-08-2009
20090210047STENT GRAFT FOR REINFORCEMENT OF VASCULAR ABNORMALITIES AND ASSOCIATED METHOD - A stent graft for reinforcement of a vascular abnormalities and an associated method are provided. According to one embodiment, the stent graft includes a flexible tubular structure comprising a proximal end and a distal end and having an expanded heat set configuration. The tubular structure is configured to be constrained to a smaller diameter than the expanded heat set configuration, and the tubular structure is heat set such that at least a portion of the proximal and/or distal ends is configured to fold over on itself when unconstrained.08-20-2009
20130138201SYSTEM FOR DEPLOYING A DEVICE TO A DISTAL LOCATION ACROSS A DISEASED VESSEL - Configurations are described for assisting in the execution of a percutaneous procedure while protecting the vascular pathway to the operational theater, which may comprise diseased tissue. A railed sheath may be controllably expandable and collapsible, and may comprise two or more elongate rail structures configured to assist in the distribution of loads to associated diseased tissue structures, while also contributing to the deployment of percutaneous tools by maintaining alignment of such tools with the railed catheter and associated anatomy.05-30-2013
20130144373DEVICE FOR ENDOVASCULAR AORTIC REPAIR AND METHOD OF USING THE SAME - A device and method for endovascular repair of a patient's aorta is disclosed. The device includes a frame component that has a balloon-expandable frame and a self-expanding frame secured to the balloon-expandable frame. The device also includes a valve element positioned at the proximal end of the frame component. The device may include another prosthetic component that may be secured to the frame component. The prosthetic component may include at least one conduit configured to receive a covered stent.06-06-2013
20110040366STENT WHICH IS REDUCEABLE AGAIN IN ITS DIAMETER FROM AN EXPANDED STATE IN A CONTROLLED MANNER - The present invention proposes a catheter (02-17-2011
20120172969STENT DELIVERY SYSTEM - A stent delivery system includes a self-expanding stent, an inner tube body which has a guide wire lumen, and a sheath which has the stent contained within the tip section thereof. The stent can be discharged by moving the sheath to the base end side relative to the inner tube body. The inner tube body is provided at a position within the base end section of the stent and is provided with an elastic member for pressing the stent in the direction to the sheath. The stent is gripped by the elastic member and the sheath and is adapted to be slidable relative to the sheath.07-05-2012
20120172967EMBOLIC PROTECTION SYSTEMS FOR BIFURCATED CONDUITS - An apparatus for removing emboli from a vessel during an interventional procedure comprising a catheter. The catheter includes: an elongate member having a lumen extending from the proximal end to the distal end; a dilation element disposed on a distal portion of the elongate member, the dilation element having a contracted state and an expanded state; an occlusion element disposed on a distal portion of the elongate member, the occlusion element being disposed proximal of the dilation element, and the occlusion element having a contracted state and an expanded state; and one or more aspiration ports disposed on a distal portion of the elongate member, the one or more aspiration ports being in fluid communication with the lumen, and one or more of the aspiration ports being disposed proximal of the dilation element and distal of the occlusion element.07-05-2012
20120172965CONFORMABLE PROSTHESIS DELIVERY SYSTEM AND METHOD FOR DEPLOYMENT THEREOF - A delivery system may include a stent-graft, a locking member, and one or more diameter reducing members. The stent-graft may include a tubular graft comprising first and second longitudinally extending sides disposed opposite each other and connected at a tangent line. When the locking member is in a locked position, the locking member restrains a surface of the graft against the cannula. The first diameter reducing member may be slidably connected to a first portion of the graft that is disposed proximate the tangent line and may be slidably connected to a second portion of the graft that is spaced circumferentially away from the tangent line. When the first diameter reducing member is in a restrained position, the second portion of the graft is drawn toward the first portion of the graft and the proximal portion of the stent-graft has a reduced diameter configuration with at least two lobes.07-05-2012
20120172964Stent Loading and Delivery Device Having a Loading Basket Lock Mechanism - A stent loading and delivery system, the delivery system comprising an inner elongate tubular member having a proximal end and a distal end, an intermediate elongate tubular member having a proximal end and a distal end in sliding relationship to said inner elongate tubular member and an external elongate tubular member having a proximal end and a distal end in sliding relationship to said intermediate elongate tubular member, said intermediate elongate tubular member comprising a stop mechanism at its proximal end, wherein the stop mechanism prevents the external elongate tubular member from being slid past the stop mechanism when the external elongate tubular member is slid in a proximal direction.07-05-2012
20120035705DEPLOYMENT DEVICE FOR PLACEMENT OF MULTIPLE INTRALUMINAL SURGICAL STAPLES - A system for delivering a surgical staple can include various components. The system may include an elongate body with a proximal end, a distal end, and a plurality of delivery platforms disposed adjacent the distal end. A sheath can move relative to the elongate body from a first position in which the distal end of the sheath is disposed distally of a distal-most distal delivery platform to a second position in which the distal end of the sheath is disposed proximally of at least one delivery platform. A plurality of intravascular tacks can be within the system with each disposed about a corresponding delivery platform.02-09-2012
20110125248CUSTOM LENGTH STENT APPARATUS - Apparatus and methods for delivering prosthetic segments to a body lumen, utilize a device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The apparatus further includes a separator disposed on the outer sheath and adapted to engage the prosthetic segments. The separator is also adapted to be retracted proximally over the prosthetic segments and advanced distally to separate a proximal group of the prosthetic segments from a distal group of the prosthetic segments which are to be deployed in the body lumen.05-26-2011
20090048656Delivery Device for Delivering a Self-Expanding Stent - The present invention provides a delivery device for self-expanding stent. The delivery device includes pipe head, inner pipe, near end controller, medium pipe, texturing tube, external protection apparatus, at least one locked coil and at least one stayguy. The external protection apparatus is a tearable external protection apparatus or a flexible connects collar hold-down mechanism or a stayguy hold-down mechanism. The present invention has a plenty of following advantages: to locate the stent rotarily, to fix the expanded stent effectively, to reduce the valvular abrasion of artificial cardiac stent, to reduce the abrasion of stayguy, to avoid the dislocation of stayguy and so on.02-19-2009
20100131039APPARATUS AND METHOD FOR IN SITU EXPANSION OF PROSTHETIC DEVICE - A system for expanding a device in a conduit or orifice of a human body includes an expansion device that is movable from a first configuration to a second configuration. External surfaces of the expansion device can collectively have a non-cylindrical cross-section relative to a main axis of the expansion device, such that the external surfaces of the expansion device generally conform to the anatomical shape of the conduit or orifice when the expansion device is in the second configuration.05-27-2010
20100131038STENT ASSEMBLY - A stent assembly (05-27-2010
20090216309CONFORMABLE VASCULAR PROSTHESIS DELIVERY SYSTEM - Novel approaches for a conformable vascular prosthesis delivery system are provided which overcome the limitations of existing high pressure balloons for delivering intravascular prostheses to the site of high-risk plaques. One embodiment involves a short balloon segment which is inflated at one end of the prosthesis and then pulled to traverse the length of the prosthesis, dilating the surrounding prosthesis and securing it to the vessel wall as it traverses the length of the prosthesis. The short balloon segment causes less local trauma to the vessel relative to a full length balloon. Another embodiment involves use of a self-expandable mesh to expand the surrounding prosthesis and secure it to the vessel wall. The self expandable mesh is less traumatic than a typical angioplasty balloon because of the lower radial forces applied and the relatively higher transverse flexibility of the mesh.08-27-2009
20100057184INTRALUMINAL SYSTEM FOR RETRIEVING AN IMPLANTABLE MEDICAL DEVICE - An intraluminal system for retrieving an implantable medical device from a body vessel includes, according to one embodiment, a grasping component including at least one deployable arm, where a proximal end of the arm is configured to extend away from a longitudinal axis of the system when deployed, and a first sheath disposed adjacent to the grasping component, where the first sheath includes a radially expandable portion at a distal end thereof. A second sheath overlies the first sheath and the grasping component. Relative motion between the second sheath and the grasping component allows the proximal end of the deployable arm to be deployed for grasping a distal portion of an implantable medical device, and relative motion between the second sheath and the first sheath allows the expandable portion of the first sheath to radially expand to receive a proximal portion of the implantable medical device.03-04-2010
20110152997DELIVERY SYSTEM FOR MULTIPLE STENTS - A stent delivery balloon (06-23-2011
20120123517DELIVERY SYSTEMS FOR DELIVERING AND DEPLOYING STENT GRAFTS - A delivery system for delivering and deploying a stent graft includes a curved guidewire catheter, an apex release catheter, an apex capture device, a relatively rigid, hollow catheter, and a distal nose. The apex capture device includes a distal capture portion fixedly connected to the distal end of the guidewire catheter and having a distal portion and a proximal stopper having an exposed side facing distally in a plane approximately perpendicular to a longitudinal axis of the curved guidewire catheter. The apex capture device also includes a proximal capture portion fixedly connected to the distal end of the apex release catheter and has fingers extending toward the distal capture portion in a distal direction that define an interior cavity to receive the proximal stopper. The proximal and distal capture portions of the apex capture device define a stent capture state.05-17-2012
20120123516STENT DELIVERY SYSTEMS AND LOCKING MEMBERS FOR USE WITH STENT DELIVERY SYSTEMS - Stent delivery systems, locking members for preventing unwanted actuation of a actuation member on a stent delivery system, and methods for making and using the same are disclosed. An example stent delivery system may include an inner member. A deployment sheath may be disposed about the inner member. 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 configured to shift the longitudinal position of the deployment sheath relative to the inner member. A locking member may be disposed on the actuation member. The locking member may be configured to prevent unwanted actuation of the actuation member.05-17-2012
20120303111Attachment 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.11-29-2012
20120150274VASCULAR PROSTHESES FOR TREATING ANEURYSMS - An endovascular sealing stent-graft is configured to initially be positioned in a delivery catheter in a radially-compressed state, and to assume a radially-expanded state upon being deployed from the delivery catheter. The stent-graft includes a structural member, which includes a plurality of structural stent elements, and which, when the stent-graft assumes the radially-expanded state, has a generally tubular shape, and is shaped so as to define at least two elongated indentations, each of which extends rostrally to a rostral end of the structural member, and is tapered in a caudal direction until the indentation converges with the generally tubular shape of the structural member, and each of which has an axial length of at least 2 cm. The stent-graft further includes a fluid flow guide, which is coupled to at least a portion of the structural member, and covers at least a portion of each of the elongated indentations.06-14-2012
20120203325Rapid Exchange Stent Delivery System - Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include a guide member having a proximal portion and a distal portion. A stent may be disposed about the distal portion of the guide member. The stent may have a wall having an opening formed therein. A pusher member may be disposed about the guide member and positioned proximal of the stent. A holding filament may be disposed at the opening and may extend to the proximal portion of the guide member. The holding filament may be configured to releasably secure the position of the stent relative to the pusher member. The holding filament may be releasable from the stent independently of movement of the guide member.08-09-2012
20080243225Stent Removal And Repositioning Device And Associated Method - A stent removal device for removing or repositioning a stent from within a lumen is provided. The stent typically comprises at least one element arranged circumferentially about the stent. The stent removal device includes a tube positioned within the lumen proximate to the stent, wherein the tube is capable of receiving at least a portion of the stent. The stent removal device also includes a pusher positioned within the tube capable of engaging the stent and/or the element. The stent removal device further includes a hook positioned within the tube and including a hook member capable of engaging the element such that force applied to the hook causes the stent to purse string.10-02-2008
20090088832APPARATUS AND METHODS FOR DELIVERY OF VARIABLE LENGTH STENTS - Blood vessels and other body lumens are stented using multiple, discrete stent structures, or continuous coiled or mesh stent structures. Stent structures may be a balloon expandable or self-expanding and are delivered by a delivery catheter which is repositioned to spaced-apart delivery sites. 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 a deployment mechanism for deploying one or more stents of selectable length into the vessel.04-02-2009
20080255656Apparatus and method for implantation of bifurcated endovascular prosthesis - A 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 cuff and longer first leg. A separate leg extension is engageable to an aperture in the distal end of the cuff. A first catheter engages the first component for translation to the implantation site along a first guide wire. A guide member extending from the distal end of a second catheter and adapted for sizeable contact along the first guide wire when pushed by a translatable core shaft extending from the first catheter or by the second catheter is provided as a pre-positioned guide for subsequent engagement of the leg extension to the aperture in the distal end of the cuff. Translation of the core shaft while in contact with the guide member pulls a third guide engaged with the second catheter into the cuff to provide a track for proper and speedy positioning and engagement of the leg extension with the cuff.10-16-2008
20100331956ENDOLUMINAL EXPANSION SYSTEM - An endoprosthesis expansion system having, in combination, a delivery component such as a length of catheter tubing having at its distal end an intermediate sheath component, and an inner tube within the full length of the delivery catheter and intermediate sheath component. The inner tube has a protrusion affixed to its distal end, and an expandable endoprosthesis is fitted in a compacted state about the intermediate sheath, immediately proximal to the protrusion. If the endoprosthesis is a self-expanding endoprosthesis (as is preferred), an exterior constraining sheath is required around the outer surface of the endoprosthesis. Following insertion of the endoprosthesis and delivery system into a body conduit (such as a blood vessel) and transport of the endoprosthesis to the desired site within the body conduit, the endoprosthesis is deployed by axially moving the protrusion against the system, thereby applying a radially directed outward force and causing simultaneous dilatation of the intermediate sheath and disruption of the exterior constraining sheath. Disruption of the exterior constraining sheath, in the case of a self-expanding prosthesis, releases the stored energy in the formerly constrained prosthesis, allowing it to expand and accomplish full deployment against the luminal surface of the body conduit at the desired site.12-30-2010
20130158648STENT GRAFTS FOR THE THORACIC AORTA - A method of temporarily reducing the diameter of a stent graft (06-20-2013
20130158647APPOSITION FIBER FOR USE IN ENDOLUMINAL DEPLOYMENT OF EXPANDABLE IMPLANTS - 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 an apposition line or lines which facilitate bending of the expandable implant to improve conformation of the expandable implant to the vasculature of the patient.06-20-2013
20110137399Microvalve Protection Device and Method of Use for Protection Against Embolization Agent Reflux - An apparatus is provided that is useful in an embolization procedure and enables substantially unrestricted forward flow of blood in a vessel and reduces or stops reflux (regurgitation or backward flow) of embolization agents which are introduced into the blood. A method of using the apparatus is also provided.06-09-2011
20110137401STENT DEVICE DELIVERY SYSTEM WITH AN OUTER SHEATH POLYMERIC REINFORCEMENT LAYER - A stent device delivery system and method of making. The stent device delivery system includes a stent device and an outer sheath overlaying the stent device in a radially compact, delivery configuration of the stent device. The outer sheath may include a first layer of polymeric material and a reinforcement layer of polymeric material that are laminated together.06-09-2011
20110137400STENT DEVICE DELIVERY SYSTEM WITH A VARYING RADIAL PROFILE PULL MEMBER - 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 a pull member. The outer sheath may include a first layer and a reinforcement layer that are laminated together, a portion of the pull member captured radially between the first layer and the reinforcement layer. At least a partial length of the captured portion of the pull member may be formed with a varying radial profile.06-09-2011
20090171434PROSTHESIS LOADING DELIVERY AND DEPLOYMENT APPARATUS - Prosthesis loading and deploying systems include a capturing device with a proximal stent-engaging member and an elongate pulling member extending distally from the stent-engaging member. With a prosthesis or stent in a relaxed or enlarged-radius state, the pulling member is guided distally through a delivery catheter, pulling the stent-engaging member and prosthesis into the catheter lumen to progressively radially compress the prosthesis to a reduced-radius state. Simultaneously the distal end region of an elongate control device is maintained within a proximal region of the prosthesis, so that the prosthesis is compressed about the control device distal end region as these components enter the catheter. When the prosthesis is compressed about the control device, it tends to follow axial movement of the control device, thus to afford reliable positional control of the prosthesis inside the catheter by manipulating the control device.07-02-2009
20090171433CONTROL HANDLE - A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device comprises a handle that comprises a trigger. Activation of the trigger enables incremental retraction of the outer sheath to expose a self-expanding prosthesis. Activation and subsequent deactivation of the trigger causes a movable member to ratchedly engage with a stationary rack and a trigger rack.07-02-2009
20120310325PROSTHESIS DEPLOYMENT DEVICE WITH TRANSLUCENT DISTAL END - A prosthesis delivery and deployment device includes an elongate and flexible outer catheter. The outer catheter has a tubular wall of layered construction, including translucent layers, opaque layers, and a braid composed of helically wound metal filaments. The outer catheter has a translucent distal adapted to constrain a radially self-expanding prosthesis in a radially reduced, axially elongated state. Because the stent constraining region is translucent, an endoscope can be used to visually monitor the stent when so constrained. Radiopaque markers can be mounted to the outer catheter and to an inner catheter used to deploy the prosthesis, to afford a combined visual and fluoroscopic monitoring for enhanced accuracy in positioning the prosthesis, both before and during its deployment.12-06-2012
20120310324TREATMENT OF A MAIN BODY LUMEN IN THE VICINITY OF A BRANCHING BODY LUMEN - An endovascular prosthesis (12-06-2012
20120310323INTRODUCER FOR DEPLOYING AN IMPLANT - An introducer system includes a release wire and wire receivers forming a constraining mechanism that facilitates constraining at least one segment of an implant while permitting the remainder of the implant to expand during deployment. The constrained segment includes wire receivers associated with the implant that couple to the release wire and hold the constrained segment in its constrained state until it is released to expand.12-06-2012
20120310322PROSTHESIS DELIVERY SYSTEM - A deployment system is configured to deploy a prosthesis into an internal lumen of a patient. The system can include an introducer with the loaded prosthesis. A spacing mechanism can be disposed axially along the introducer. When the prosthesis is mounted onto the introducer in a radially compressed configuration, an end of a first stent and a second stent can engage a contact point of the spacing mechanism to maintain the axial distance between the first and second stents and prevent axial compression of the prosthesis during loading and deployment. The spacing mechanism can reside within the prosthesis and be disposed outwardly away from the introducer to contact the interior surface of the prosthesis. The spacing mechanism can include a flexible longitudinal member, such as a wire or strip, or a tubular body.12-06-2012
20090069879IMPLANT DELIVERY SYSTEM WITH MARKER INTERLOCK - An implant delivery system is disclosed. The delivery system includes an elongated member having an implant mounting location. A self-expandable implant is mounted at the implant mounting location. The implant is held in a compressed orientation by a retractable sheath. An interlock structure prevents the implant from deploying prematurely as the sheath is retracted. The interlock structure includes radio-opaque markers that identify the position of the implant.03-12-2009
20110218613Vascular Prosthesis Assembly with Retention Mechanism and Method - A vascular prosthesis assembly includes a self expanding prosthesis and a selectively releasable retention mechanism over the outer surface of the prosthesis which maintains the vascular prosthesis in a contracted state. The retention mechanism may include a removable strand extending along the length of the prosthesis having a series of slip knots. The retention mechanism may also include a removable strand which engages overlying layers of a wrapped prosthesis by the passage of the strand through openings in the overlying layers. Manipulation of a user-accessible release strand permits release of the retention mechanism. The retention mechanism may also include a generally cylindrical sheath housing the vascular prosthesis, the sheath constructed to be split and removed to release the prosthesis. A method releases the prosthesis to expand at a target site using a retention mechanism.09-08-2011
20100016944DEVICE FOR TREATING A BLOOD VESSEL - A device comprises an expandable implant (01-21-2010
20110118817STENT DELIVERY SYSTEM - Stent delivery systems, including self-expanding stent delivery systems, and methods for making and using the same. A self-expanding stent delivery system may include an inner member. An outer sheath may be slidably disposed about the inner member. A self-expanding stent may be disposed between the inner member and the outer sheath. A rolling membrane may be attached to the outer sheath and to the inner member. A lubricious component may be disposed adjacent the outer sheath for reducing friction between the outer sheath and the membrane.05-19-2011
20110112625VARYING DIAMETER VASCULAR IMPLANT AND BALLOON - A method for deploying an expandable implant in a body passage of varying diameter includes selecting a balloon having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage. The balloon is inserted, in a deflated state, into the body passage, with the expandable implant fitted radially around the balloon. The balloon is inflated so as to cause the implant to open, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.05-12-2011
20120041538COLLAPSING STRUCTURE FOR REDUCING THE DIAMETER OF A STENT END - A collapsing structure for collapsing the crowns of a stent and method of use thereof are described. The collapsing structure comprises an inner filament engaged to an outer filament. The outer filament is interwoven through at least a portion of the crowns of the stent end so as to create a plurality of loops. The inner filament is interwoven through at least a portion of the loops of the outer filament. Pulling on the inner filament causes the loops of the outer filament to be pulled radially inward, thereby pulling the crowns towards each other to collapse the stent end.02-16-2012
20120004717APPARATUS AND METHODS FOR DELIVERING A STENT INTO AN OSTIUM - Apparatus and methods are provided for delivering a stent into an ostium. The apparatus includes a catheter including a proximal end, a distal end, and proximal and distal balloons disposed adjacent one another on the distal end. The balloons are expandable independently of one another, and a stent is provided surrounding the balloons. During use, the distal end of the catheter is introduced into a main lumen, and the proximal balloon is inflated to flare a proximal portion of the stent. The distal end is then advanced into the ostium until the flared proximal portion contacts a wall of the main lumen surrounding the ostium. The distal balloon is inflated to expand a distal portion of the stent, e.g., to dilate a lesion within the branch and/or ostium. Thereafter, the balloons are collapsed, and the apparatus is withdrawn, leaving the stent within the ostium.01-05-2012
20120022635STENT DELIVERY SYSTEM - A stent delivery system includes: a distal-side tube; a proximal-side tube; a tubular member which contains a stent; a wire which has one end fixed to the tubular member; and an operating section which has a wire winding mechanism and a wire winding amount restriction mechanism for restricting the length of wire which is pulled. The operating section has an operating rotary roller; a winding shaft section and driving gear which are provided coaxially and integrally with the roller; and a driven gear which is intermittently rotated by the driving gear. The driving gear and the driven gear have the stopper function by which rotation of the driving gear is stopped after the driving gear is rotated a predetermined amount.01-26-2012
20120022636METHOD 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 refracted 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.01-26-2012
20120059449DELIVERY DEVICE FOR DELIVERING A STENT DEVICE - A delivery device (03-08-2012
20120059450PROSTHESIS DELIVERY SYSTEMS AND METHODS - Apparatus and method deliver a prosthesis into a hollow body organ or blood vessel. The systems and methods make use of a catheter. A carrier on the distal end of the catheter is sized and configured to carry the prosthesis. A release mechanism and an enclosure mechanism on the distal end are operable to retain and enclose the prosthesis on the carrier. The release mechanism and the enclosure mechanism are also operable to selectively expose and release the prosthesis from the carrier for deployment in the hollow body organ or blood vessel.03-08-2012
20120116493STENT DELIVERY SYSTEM - A stent delivery system includes a distal-side tube, a proximal-side tube, a fixing tube, a stent containing tubular member, a stent in the stent containing tubular member, and a pulling wire for moving the stent containing tubular member to the proximal side. The distal-side tube includes a distal-side priming slit provided in a side wall in proximity to a stent proximal end lock section and a proximal-side priming slit provided in a side wall on the proximal side of the distal-side tube. The slits are opened by injecting liquid, with the distal opening or the rear end opening of a guide wire lumen of the distal-side tube closed.05-10-2012
20120158120STENT DELIVERY SYSTEM - Stent delivery systems, clip members for use with stent delivery systems, and methods for making and using the same are disclosed. An example stent delivery system may include an inner shaft having a distal region. A stent may be disposed about the distal region. A deployment sheath may be slidably disposed about the inner shaft. A handle may be coupled to the inner shaft. The handle may include a clip member having a first holding portion and a second holding portion. The inner shaft may extend through the first holding portion and the second holding portion. A holding cuff may be thermally bonded to the inner shaft. The holding cuff may be positioned between the first holding portion and the second holding portion.06-21-2012
20120123515SYSTEM AND METHOD FOR REMOVING AN IMPLANTED OBJECT IN A PASSAGEWAY IN A PATIENT - A system for removing an implanted stent or other object from a passageway in a patient includes a housing, an expansion element that operates between an enlarged mode in which the expansion element may radially expand to a diameter larger than the object diameter and a collapsed mode in which the expansion element radially contracts, and a plurality of radially contractible members configured to circumferentially engage the implanted object. A method for moving an implanted stent or other object from an initial location in a passageway includes positioning an expansion element proximate to the stent, expanding the expansion element thereby creating a tapered annular space between the stent and the passageway, advancing a plurality of members towards the tapered annular space, engaging the stent with the members, radially contracting the members to radially compress the stent, and moving the compressed stent from the initial location.05-17-2012
20120130472STENT-GRAFT HAVING FACING SIDE BRANCH PORTALS - In various embodiments, a device for treating disease of a vessel includes a stent graft having an outer surface; and at least two side branch portals each having a proximal end and a distal end. Each distal end is substantially contiguous with the outer surface of the stent graft. In various other embodiments, the distal ends are generally axially further spaced apart than the proximal ends.05-24-2012
20120221095SYSTEM 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.08-30-2012
20120130474DEPLOYMENT SLEEVE SHORTENING MECHANISM - A medical device constraint includes an elastic element having proximal and distal ends, a continuous lumen extending between the proximal and distal ends of the tubular elastic element; and a medical device disposed at least partially within the continuous lumen, wherein the generally tubular element has a first state in which the tubular element is longitudinally held in tension to conceal a gap between the medical device and a distal tip and a second state in which the tubular element is longitudinally relaxed and spaced apart from the gap.05-24-2012
20120130473DEPLOYMENT OF ENDOLUMINAL DEVICES - A catheter assembly includes a single sleeve that constrains an expandable device to a dimension suitable for endoluminal delivery of the device to a treatment site, and further allows expansion of the device toward an outer peripheral dimension that is smaller than a fully deployed outer peripheral dimension to allow positioning of the device at the treatment site prior to full deployment and expansion of the device at the treatment site.05-24-2012
20120130475SLEEVES FOR EXPANDABLE MEDICAL DEVICES - The present disclosure describes treatment of the vasculature of a patient with an expandable implant. The implant is constrained to a reduced delivery profile for delivery within the vasculature by at least one sleeve. The implant may be constrained to other diameters, such as an intermediate configuration having a diameter larger than the delivery profile and smaller than the deployment diameter. The sleeves may 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 may comprise a number of side branch fenestrations or fenestratable portions.05-24-2012
20120136426APPARATUS 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.05-31-2012
20100174355DELIVERY AND RECOVERY SHEATHS FOR MEDICAL DEVICES - A deployment control system provides controlled deployment of an embolic protection device which may include a guide wire, an expandable filter attached to the guide wire near its distal end, and a restraining sheath that maintains the expanded filter in a collapsed position. The deployment control system includes a torque control device which allows the physician to torque the guide wire into the patient's anatomy and a mechanism for preventing the guide wire from buckling as the restraining sheath is being retracted to deploy the expandable filter. A recovery control system for recovering the embolic protection device includes an inner catheter which extends within a lumen of an outer recovery sheath in a coaxial arrangement. A distal portion of the inner catheter extends beyond another recovery sheath during advancement of the recovery system into the vasculature. The recovery sheath can be advanced over the inner catheter to collapse the expandable filter. The proximal ends of the inner catheter and recovery sheath include handle portions having snap mechanisms which hold the components together as the recovery system is being advanced into the patient's vasculature.07-08-2010
20120172966MEDICAL 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.07-05-2012
20120172968CONTROLLED SEQUENTIAL DEPLOYMENT - A stent graft introducer (07-05-2012
20120316637ENDOPROSTHESIS DELIVERY SYSTEM - The present disclosure relates to catheters for delivering medical devices to a human patient's vasculature. A catheter comprises a sock which covers the medical device at the end of the catheter, and an introducer sheath which is reduced in diameter. This reduced diameter introducer sheath minimizes the crossing of the catheter.12-13-2012
20120316636LOCK/FLOATING MARKER BAND ON PUSHER WIRE FOR SELF-EXPANDING STENTS OR MEDICAL DEVICES - An apparatus for deploying and retrieving a self-expanding intravascular stent includes an intravascular delivery wire and floating marker band movably retained over the intravascular stent delivery wire and releasably mounting the self-expanding intravascular stent. The floating marker band is movably retained to a fixed marker band, and a distance between the fixed marker band and the floating marker band is variable and self-adjusting. One or more struts of the self-expanding intravascular stent are releasably constrained between a catheter wall and one or more sides of the floating marker band.12-13-2012
20120259403DEVICE FOR LOADING A SELF EXPANDABLE PROSTHESIS INTO A SHEATH - An assembly comprising: a protective sheath and a loading device for loading a self-expandable prosthesis into said sheath, the loading device having a conical distal section, which radially compresses the prosthesis and an annular lip that engages with the interior of the distal end of said sheath to guide the prosthesis into the sheath whilst protecting the sheath from damage.10-11-2012
20120226340TEMPORARY PERFUSION CHANNEL FOR PERCUTANEOUS DELIVERY OF BALLOON-EXPANDABLE STENTS - Technologies are generally described for percutaneous valve delivery systems with continuous blood flow. By providing a temporary perfusion channel in balloon-expandable stent and/or valve replacement systems, blood flow during the deployment of the stent or valve, when the inflation of the balloon may interrupt the blood flow, is ensured. The perfusion channel may be formed employing an elongated braided structure, which may be expanded radially and outwards upon being longitudinally compressed. One-way blood flow through the channel may be accomplished by providing a temporary check valve.09-06-2012
20120221093SHORT THROW CENTERED HANDLE FOR STENT DELIVERY SYSTEM - A stent delivery system and 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. It 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. A cog and rack mechanism is included to provide mechanical advantage and efficiency during stent deployment.08-30-2012
20120316638METHOD AND DEVICE FOR TREATING CEREBROVASCULAR PATHOLOGIES AND DELIVERY SYSTEM THEREFOR - In one embodiment, a delivery system for a medical device includes a flexible sheath defining a lumen having a distal end and a flexible shaft having a proximal portion and a distal portion. A retention element and a pushing element, spaced proximally from the retention element, are disposed on the distal portion. The flexible shaft, retention element, and pushing element are disposable within the lumen. The flexible shaft is movable distally through the lumen between a stowed position and a deployed position and is movable proximally through the lumen between the deployed position and a partially deployed position with the retention element proximate to the distal end of the lumen. The retention element is configured to form with the medical device an interference fit with the flexible sheath when the flexible shaft is urged proximally from the retention position to engage the medical device with the flexible sheath.12-13-2012
20120221094STENT GRAFT WITH VALVE ARRANGEMENT - A stent graft (08-30-2012
20120226343STENT DELIVERY SYSTEM - A stent delivery system includes a delivery member, a frictional interfacing member disposed on a distal region of the delivery member, the frictional interfacing member comprising a plurality of perfusion channels, a self-expanding stent disposed over the respective frictional interfacing member and delivery member in a radially contracted configuration, and a sheath defining disposed over the respective self-expanding stent, frictional interfacing member, and delivery member, wherein the frictional interfacing member resists axial and/or rotational movement of the stent relative to the delivery member while the stent is in its radially contracted configuration, and wherein the perfusion channels permit fluid to flow from an interior region of the sheath proximal of the frictional interfacing member to an interior region of the sheath distal of the frictional interfacing member.09-06-2012
20120226341CATHETER SYSTEM AND METHODS OF USING SAME - A modular catheter system including a sheath projecting distally from a delivery catheter having a main body module An inner core module carrying a stent thereon, the inner core being axially movable through the main body of the delivery catheter and the delivery catheter sheath, a handle member supported by the main body of the delivery catheter, the handle member being selectively axially engageable with the inner core such that the handle member and the inner core move together in an axial direction when the handle member is engaged with the inner core; and an adjustment member supported by the main body, the adjustment member being configured such that rotation of the adjustment member causes the adjustment member to move axially along the main body by either axially sliding the handle member relative to the main body or by rotating the adjustment member.09-06-2012
20120191174ADVANCED ENDOVASCULAR GRAFT AND DELIVERY SYSTEM - Embodiments are directed in part to endovascular prostheses and methods of deploying same. Embodiments may be directed more specifically to stent grafts and methods of positioning and deploying such devices within the body of a patient.07-26-2012
20090018637TUBULAR DEVICES HAVING REVERSIBLE COMPONENTS FOR DEPLOYMENT OF ENDOLUMINAL OCCLUDERS AND RELATED METHODS AND SYSTEMS - Described are devices, methods, and systems useful for deploying one or more occlusive prostheses within the vasculature of a patient. Illustrative devices can include a deployment tube or sheath that contains an occlusive prosthesis, wherein a segment of the sheath is reversible by a user so as to deploy the prosthesis from the sheath lumen within a bodily lumen of a patient.01-15-2009
20130172978Tethers for Prosthetic Mitral Valve - This invention relates to the design and function of a single-tether compressible valve replacement prosthesis which can be deployed into a beating heart without extracorporeal circulation using a transcatheter delivery system. The design as discussed combats the process of wear on anchoring tethers over time by using a plurality of stent-attached, centering tethers, which are themselves attached to a single anchoring tether, which extends through the ventricle and is anchored to a securing device located on the epicardium.07-04-2013
20100324649Device and method for treating ruptured aneurysms - A stent device for treating an aneurysm is disclosed. The stent device comprises an expandable balloon with a channel extending through said balloon from one side to another, and a supporting stent connected to said balloon. In an operative disposition, when the expandable balloon is expanded, the supporting stent is arranged at least partly within said channel of said expandable balloon. Further, the supporting stent has walls which are permeable to blood. The stent device may be introduced and removed by endoscopic procedures, with a relatively simple procedure. Thus, the stent device is highly useable for fast and temporary treatment of ruptured aneurysms.12-23-2010
20120239130STENT DELIVERY SYSTEM WITH NITINOL TRIGGER WIRE - A stent graft delivery system (09-20-2012
20120271400INTRODUCER FOR A VASCULAR REPAIR PROSTHESIS - An introducer system and method for introducing a prosthesis for repair of two vessel portions of a transected body vessel is provided. The system can include one or more retaining members fitted over the ends of the prosthesis to retain the ends radially compressed. The retaining member can include an elongated body for insertion into the vessel opening and a gripping member, which both can be rigid. A splittable region can be formed in the elongated body and the gripping member. Application of a force to the gripping member can separate or fracture the gripping member and the elongated body along the splittable region to permit radial expansion of the prosthesis for engagement with the vessel. A sleeve may at least partially surround an intermediate portion of the prosthesis. The sleeve can be configured to retain the intermediate portion of the prosthesis in the radially compressed configuration.10-25-2012
20120330401STENT DELIVERY SYSTEM - A stent delivery system includes a body and an operation unit disposed at the proximal end of the body. The body includes a self-expanding stent, an inner tube body, and a stent-accommodating tube body in which the stent is accommodated. The inner tube body has a stent-holding part enabling the stent to be re-accommodated into the stent-accommodating tube body. The operation unit includes a rack member fixed to a proximal end of the stent-accommodating tube body, an operation rotary roller having a working gear wheel that engages the teeth of the rack member, thereby causing the rack member to move forward and backward; and a connector fixed to a proximal end portion of a proximal-side tube that penetrates the stent-accommodating tube body and protrudes from the proximal end of the stent-accommodating tube body.12-27-2012
20120330400BALLOON CATHETER WITH STENT AND METHOD FOR MANUFACTURING IT - The invention relates to a balloon catheter comprising a catheter tube, an inflatable balloon, the ends of which are attached to the catheter tube, and a stent attached around the balloon. The stent extends at least partly along the length of the balloon. In an uninflated state, at least the outside surface of the balloon not covered by the stent is provided with a relief structure which is substantially disappeared in an inflated state of the balloon. The invention also relates to a method for manufacturing such a balloon catheter.12-27-2012
20120330399ENDOVASCULAR FENESTRATED STENT-GRAFTING - A stent-graft (12-27-2012
20120323302TRIGGER WIRE ACTIVATION LEVER - An actuation assembly having at least one lever operably connected to one or more trigger wires which are operably connected to a stent retaining device for a stent graft introducer is disclosed. The lever or levers can be extended or detached from the introducer to remove the trigger wires.12-20-2012
20100234934Balloon Deployable Coronary Stent - A system for treating a vascular condition includes a delivery catheter, a balloon disposed at a distal end of the delivery catheter, a stent having a stent framework, the stent disposed on an outer surface of the balloon; and at least one restraining filament attached to an outer surface of the stent. a method of treating a vascular condition includes delivering a self-expanding stent including a restraining filament to a treatment site via a balloon catheter, the stent disposed over the balloon; inflating the balloon to fracture at least one fracture point disposed along the length of the restraining filament; expanding the self-expanding stent at the treatment site; contacting an outer surface of the self-expanding stent with a vessel wall at the treatment site; and trapping the fractured restraining filament between at least a portion of an outer surface of the stent and the vessel wall.09-16-2010
20120277847CATHETER 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.11-01-2012
20110276121Method And Apparatus For Caged Stent Delivery - In combination a device for delivering a stent within an intraluminal cavity and a stent including an elongated member configured to receive a stent thereon, a stent mounted on the elongated member and movable between a smaller diameter delivery position and an expanded placement position and a tubular portion attached to the elongated member. First and second stent engaging arms and a pusher arm extend distally of the tubular portion. The first and second engaging arms configured to constrain the stent in an area between the arms and the pusher arm configured to contact the proximal portion of the stent. The engaging arms are movable between a closed stent constraining position and an open stent release position. The delivery system can also be used to deliver other vascular implants.11-10-2011
20120095544STENT MOVEMENT PREVENTING DEVICE - A device for preventing stent movement during delivery including a securement connector arranged to engage a catheter, at least one flexible connecting member, the flexible connecting member having a first end portion and a second end portion, the first end portion coupled to the securement connector, and a locking member located at the flexible connecting member second end portion arranged to engage a portion of a stent including struts defining gaps therebetween wherein the locking member takes the form of a clasp section by snapping into one gap of the gaps between the struts.04-19-2012
20120101563DELIVERY SYSTEM FOR BRANCHED STENT GRAFT - A delivery system for a branched stent graft comprises a double-layer sheath (04-26-2012
20120101562STENT DELIVERY SYSTEM - Stent delivery systems and methods for making and using stent delivery systems are disclosed. An example stent delivery system may include an inner member. A sheath may be disposed about the inner member. The sheath may include a compressible coil. A stent may be disposed between the inner member and the sheath. A membrane may extend between the inner member and the sheath. The membrane may be configured to be disposed on the stent. An outer member may be disposed over the sheath.04-26-2012
20130013049CONTROL HANDLE FOR SELF-EXPANDABLE MEDICAL DEVICES - A delivery system is provided for a self-expanding medical device. The delivery system has a handle assembly with a housing. The housing has a slot with a deployment knob extending therethrough. The self-expanding medical device is deployed by restraining the housing of the handle assembly and pulling on the deployment knob. This causes an outer sheath to withdraw proximally from an inner catheter to release the self-expanding medical device from a space between the outer sheath and inner catheter.01-10-2013
20120150273ONE-PIECE BIFURCATION GRAFT - The present invention relates to an endoluminal prosthesis to be deployed at a vessel bifurcation, comprising a one-piece graft sleeve with a branching portion, defining a first prosthesis lumen and having, in its deployed state, a first diameter, said branching portion being reinforced by stent elements, and a trunk portion, defining a second prosthesis lumen in fluid communication with said first prosthesis lumen and having, in its deployed state, a second diameter. Said trunk portion is essentially free from reinforcing stent-material (FIG. 06-14-2012
20130018450PROSTHESIS DELIVERY SYSTEM WITH RETENTION SLEEVEAANM Hunt; James B.AACI BloomingtonAAST INAACO USAAGP Hunt; James B. Bloomington IN US - A system for open surgical repair of a body vessel is described herein. A retention sleeve receives an expandable prosthesis. The sleeve has a delivery and a deployed configuration. In the delivery configuration, the sleeve has at least one overlapped region and the sleeve is sized to retain the prosthesis in a compressed configuration for insertion of ends of the prosthesis into the vessel. In the deployed configuration, the sleeve is moves to a larger cross-sectional area to allow for expansion of the ends of the prosthesis for engagement with the vessel. One or more releasable members are extendable through the overlapped region to retain the sleeve in the delivery configuration. The releasable member is removable from the overlapped region, preferably from the center of the prosthesis, to permit the sleeve to move to the deployed configuration and expansion of the outer ends prior to the center of the prosthesis.01-17-2013
20130018451Delivery System - Medical systems and devices are described. In one example, a system for delivering an implantable endoprosthesis into a body vessel is described. The system includes a handle assembly having a housing, a rotatable member, a first pulley engaged to the rotatable member, a second pulley rotatably engaged to the housing, and a belt extending between the first pulley and the second pulley, the belt engaged to the first pulley. The system further includes an inner member, an outer sheath secured to the belt and disposed about at least a portion of the inner member. The system excludes a rack.01-17-2013
20130172979Medical Implant - The invention is directed to a device (07-04-2013
20080234799CUSTOM-LENGTH STENT DELIVERY SYSTEM WITH INDEPENDENTLY OPERABLE EXPANSION ELEMENTS - A stent delivery system for delivering a plurality of stent segments to at least one treatment site includes a catheter shaft having a proximal end and a distal end, a plurality of expandable members arranged axially along the catheter shaft near the distal end, a plurality of stent segments, and a selecting mechanism adapted for selecting one or more expandable members for expansion. Each expandable member is expandable independently of at least one other expandable member, and each expandable member has at least one stent segment positioned on it. One or more of the expandable members may be selectively expanded to deploy the one or more stent segments positioned thereon at the treatment site.09-25-2008
20080234798APPARATUS 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.09-25-2008
20080221658Vascular 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 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.09-11-2008
20080221657Delivery system and method for vascular prosthesis - A delivery system for an implantable vascular prosthesis is provided for a vascular prosthesis including at least first and second helical sections having alternating directions of rotation that are coupled to one another at apices. The delivery system includes an elongate body, a plurality of retainers and an outer sheath. The plurality of retainers are configured to temporarily retain a plurality of inner wound apices of the vascular prosthesis. The outer sheath is configured to retain the vascular prosthesis in a contracted state on the elongate body.09-11-2008
20130090716Delivery System for a Self-Expanding Implant - The present disclosure provides a delivery system for a self-expanding implant (04-11-2013
20110313507Methods and Apparatus for Storage and/or Introduction of Implant for Hollow Anatomical Structure - One embodiment of the apparatus comprises a housing with a sheath portion projecting distally therefrom. The sheath portion has a sheath with a lumen, and a bearing surface in the sheath lumen or aligned with the sheath lumen, and located at or near a distal end of the sheath. The implant is at least partially positioned in the apparatus, and comprises an implant body and a tether connected to the implant body. The tether extends from the implant body distally within the sheath portion and around the bearing surface, where the tether changes direction, and extends back proximally from the bearing surface along and within the sheath portion. The apparatus is configured to move the first tether portion proximally and thereby draw the implant body distally along and within the sheath lumen.12-22-2011
20130131778STENT COVER MEMBER AND STENT APPARATUS - Present invention is a stent apparatus wherein a stent covering member holds a stent, which scaffolds a blood vessel from the inside when implanted in the blood vessel, in contracted state. The stent is formed of a biodegradable polylactic acid (PLA) as a tubular shape, shape memorized to a size capable of, when implanted in a vessel, scaffolding the blood vessel from the inside. This stent is held by the stent covering member in contracted state and mounted on a balloon of a balloon. The covering member is formed of a biodegradable polymer having elasticity as a cylindrical shape having an inner diameter to keep the stent in contracted state and, when the stent is expanded to the shape memorized shape, plastically deformed to release the holding of the stent. The stent and the stent covering member disappear in a vessel after they are implanted in the vessel.05-23-2013
20100280589DEVICE FOR TREATING A BLOOD CIRCULATION CONDUIT - This device (11-04-2010
20130150945SYSTEMS AND METHODS FOR DELIVERY OF A MEDICAL DEVICE - In various embodiments, the medical device delivery system described herein can be configured to position and deliver a medical device in a body lumen. The medical device delivery system can comprise an elongate member, a medical device and a leash. During deployment, the medical device can be tethered to the catheter by the leash, to stabilize and prevent unwanted shifting of the medical device as it deploys at the treatment site.06-13-2013
20090118811Globe Stent - A stent for treating a region of a body lumen wherein at least two vessels form a junction includes a compressed state and an expanded state. In the expanded state, the stent is generally an ellipsoidal, spheroidal, or spherical shape. The stent is delivered to the junction in the compressed state disposed within a sleeve. Once at the junction, the sleeve is withdrawn proximally relative to the stent such that the stent is released from the sleeve and expands to the expanded state. A balloon may further expand the stent to appose the walls of the body lumen at the junction.05-07-2009
20120283816PROSTHESIS ANCHORING AND DEPLOYING DEVICE - A system for intraluminally delivering and deploying stents and other prostheses includes an outer catheter, an inner catheter movable axially relative to the outer catheter, and an anchoring device mounted to a distal end region of the inner catheter. The anchoring device includes one or more control features that interact with a linking structure proximally disposed on the prosthesis, preferably including one or more loops. The control features and loops interact by surface engagement to anchor the prosthesis relative to the inner catheter in a nonfrictional manner, thus to maintain lower axial prosthesis deployment and retraction forces. In one version of the anchor, the control features extend radially outward from a sleeve. In another version, the control features are formed in respective recesses which also receive the loops or other linking structure.11-08-2012
20120283815SYSTEM 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.11-08-2012
20110313506Methods and Apparatus for Storage and/or Introduction of Implant for Hollow Anatomical Structure - One embodiment of the apparatus comprises a housing with a sheath portion projecting distally therefrom. The sheath portion has a sheath with a lumen, and a bearing surface in the sheath lumen or aligned with the sheath lumen, and located at or near a distal end of the sheath. The implant is at least partially positioned in the apparatus, and comprises an implant body and a tether connected to the implant body. The tether extends from the implant body distally within the sheath portion and around the bearing surface, where the tether changes direction, and extends back proximally from the bearing surface along and within the sheath portion. The apparatus is configured to move the first tether portion proximally and thereby draw the implant body distally along and within the sheath lumen.12-22-2011
20110313505Bifurcated Stent Introducer System - A stent delivery system and a method for implanting a stent are provided. The system includes first and second elongate shafts, each shaft including a proximal portion, a distal portion, and a lumen extending at least partially therethrough. The second shaft is longitudinally movable relative to the first shaft. The system also includes a bifurcated stent having a first arm positioned on the first shaft and a second arm positioned on the elongate shaft and a main body positioned on the first and second shafts. Proximal and first and second distal constraining members are releasably connected to the stent. The proximal and the first and second distal constraining members cooperatively apply longitudinal tensile force to at least a portion of the stent with the proximal and first and second distal constraining members each in the first position.12-22-2011
20130190855EMBOLIC PROTECTION SYSTEMS FOR BIFURCATED CONDUITS - An apparatus for removing emboli from a vessel during an interventional procedure comprising a catheter. The catheter includes: an elongate member having a lumen extending from the proximal end to the distal end; a dilation element disposed on a distal portion of the elongate member, the dilation element having a contracted state and an expanded state; an occlusion element disposed on a distal portion of the elongate member, the occlusion element being disposed proximal of the dilation element, and the occlusion element having a contracted state and an expanded state; and one or more aspiration ports disposed on a distal portion of the elongate member, the one or more aspiration ports being in fluid communication with the lumen, and one or more of the aspiration ports being disposed proximal of the dilation element and distal of the occlusion element.07-25-2013
20120290067VASCULAR REMODELING DEVICE - Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.11-15-2012
20120029610GRAFT DEPLOYMENT SYSTEM - A method for deploying a bifurcated endoluminal prosthesis at the junction of a main vessel and first and second branch vessels, comprising providing a deployment system containing a prosthesis having a main body section and first and second proximally extending branch sections, introducing the deployment system into the first branch vessel at a first access site, advancing the deployment system distally through at least a portion of the first branch vessel and into the main vessel, releasing the second branch section of the prosthesis by proximally retracting an outer sheath of the deployment system, expanding the main body section of the prosthesis from a radially compressed state within the deployment system to a radially expanded state within the main vessel by removing a first peelable sheath from the main branch section, and expanding the second branch section within the second branch vessel by proximally retracting a second branch release wire.02-02-2012
20120029609Endoprosthesis 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.02-02-2012
20120029608METHOD 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 refracted 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.02-02-2012
20120296413METHODS OF IMPLANTING A PROSTHESIS - A method of implanting a prosthesis in a patient at a treatment site includes advancing an outer catheter of a prosthesis delivery system in the patient and advancing an inner sheath and a guidewire lumen of the delivery system from the outer catheter to the treatment site along a guidewire while the outer catheter remains stationary relative to the patient. The method also includes locking an apex release lumen, a sheath lumen and a guidewire lumen within the apex release lumen, with respect to an outer catheter and rotationally locking the apex release lumen, the sheath lumen and the guidewire lumen. The apex release lumen, the sheath lumen and the guidewire lumen are threaded onto a guidewire and directed into a patient and the apex release lumen and the sheath lumen are unlocked with respect to the outer catheter.11-22-2012
20120296412DELIVERY 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.11-22-2012
20120296411SIDE BRANCHED ENDOLUMINAL PROSTHESIS 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.11-22-2012
20120296410STENT DESIGNS FOR USE IN PERIPHERAL VESSELS - System including a delivery catheter and a stent disposed at a distal end of the delivery catheter. The stent includes a plurality of radially expandable rings disposed adjacent to one another to define a tubular member having a proximal end portion, and a distal end portion, and a middle portion, each of the radially expandable rings including a plurality of strut members. The middle portion of the tubular member include a plurality of interconnection members extending between longitudinally adjacent expandable rings, the number of the plurality of the interconnection members being greater than that of the end portion of the tubular member. The stent also includes a transition section between the end portion and the middle portion, the transition section including at least one open cell and at least one closed cell. The stent can be self-expandable or balloon expandable.11-22-2012
20120296409STENT DELIVERY SYSTEM - A stent delivery system is provided with a stent which, when inserted into an organism, is compressed in the center axis direction and which, when placed in the organism, can be expanded outward and restored to the shape which the stent has before being compressed; an inner tube body (inner tube); and a stent housing tube body (sheath) in which the stent is housed. The stent can be discharged by moving the stent housing tube body to the proximal side relative to the inner tube body. At least a portion of an inner surface of the stent housing tube body is a substantially polygonal prism-shaped inner surface which extends in the axial direction of the stent housing tube body.11-22-2012
20130204345EVERTABLE SHEATH DEVICES, SYSTEMS, AND METHODS - The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.08-08-2013
20130204344STENT RETAINING SYSTEMS - A stent delivery system includes an expandable stent, a catheter, and a sheath. The expandable stent includes proximal and distal ends, and a first interlock structure. The catheter includes an elongated member having a second interlock structure displaceably arranged about an outer surface thereof for engaging the first interlock structure of the stent. The sheath is mounted on the elongated member and is positionable in a transport position in which the sheath covers the stent mounted on the elongated member and a deploy position in which the stent is exposed.08-08-2013
20130204346Endoprosthesis Stent Delivery System and Method of Using the Same - An endoprosthesis deployment system includes an axial catheter, an outer sheath extending parallel to the axial catheter, and an inner sheath positioned transversely between the axial catheter and outer sheath, the inner sheath including first and second inner sheath sections extending along the axial catheter, each of said first and said second inner sheath sections mounted for axial movement relative to the other inner sheath section.08-08-2013
20130211494DEVICES AND METHODS FOR CONTROLLING EXPANDABLE PROSTHESES DURING DEPLOYMENT - Prosthesis delivery devices and methods are provided that enable precise control of prosthesis position during deployment. The catheter for delivering a prosthesis to a treatment site in a body lumen typically carries one or more self-expanding tubular prostheses within a sheath. A radially expandable control member is positionable within the prostheses and has an expanded shape which engages an inner surface of the prostheses to urge the prostheses outwardly against the sheath. The radially expandable control member therefore controls axial position of the prostheses during deployment. Thus one or more prostheses may be deployed at a treatment site precisely. When multiple prostheses are deployed, excessive spacing or overlap between adjacent prostheses is minimized. The prostheses of the present invention are often deployed in stenotic lesions in peripheral arteries as well as coronary arteries and other body lumens.08-15-2013
20130211495INTERFERENCE-RELIEF TYPE DELIVERY DETACHMENT SYSTEMS - Various features are described that are adapted to improve performance of interference-relief type delivery systems. A delivery system provided herein comprises an implant comprising a socket at a proximal end of the implant; an elongate sleeve having (i) a proximal section, (ii) a distal section slidably disposed within the socket, and (iii) a window between the proximal section and the distal section, the window extending through a wall of the sleeve; and a core member having a proximal portion slidably received within the proximal section of the sleeve and a distal portion extending through the window to a space outside the sleeve and within the socket. The distal portion of the core member provides an interference fit with the distal section of the sleeve within the socket until the core member is withdrawn.08-15-2013

Patent applications in class Expandable stent with constraining means