Patent application number | Description | Published |
20080221670 | RADIOPAQUE POLYMERIC STENT - The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, at least one radiopaque filament is arranged for permanent attachment to a hollow tubular structure. The filament is desirably arranged in a linear direction traverse to a longitudinal length of the structure, the structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. The radiopaque filament improves external imaging of the tubular structure on fluoroscope or x-ray imaging equipment. | 09-11-2008 |
20080300673 | RADIOPAQUE COMPOSITIONS, STENTS AND METHODS OF PREPARATION - The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, a plurality of elongate filaments including one or more radiopaque filaments are arranged to form a hollow tubular structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. One of the open ends of the stent is formed by an intersection of adjacent filament ends. A radiopaque compound is applied to the intersection, the radiopaque compound comprising radiopaque material and polymeric material. The radiopaque compound and radiopaque filament provide improved external imaging of the tubular structure on imaging equipment. | 12-04-2008 |
20090076526 | Compression, Banding and Percutaneous Airway Ligation of Emphysematous Lung Tissue - A lung volume reduction system includes a percutaneously, laparoscopically or thorocospically insertable delivery element comprising a control end which remains outside the body and an insertion end which, when in an operative position, is adjacent to an external surface of a target portion of a lung and a constriction element deployable from the distal end of the delivery element to apply compressive force to an external surface of the target portion of the lung to constrict at least one airway therein and collapse the target portion of the lung. | 03-19-2009 |
20090187240 | STENT WITH ANTI-MIGRATION FEATURE - An intraluminal prosthesis includes an outer three-dimensional (3D) anti-migration structure that is attached to the outer wall of a fully covered or partially covered stent to prevent migration and still allow stent removal at a later period of time. A method of manufacturing the intraluminal prosthesis includes attaching the anti-migration structure by usage of a polymer such as polyurethane. | 07-23-2009 |
20100057109 | ENDOSCOPIC SUTURING DEVICE - A suturing device for use in endoscopic procedures includes a head configured to be removably coupled to an elongate medical device and an actuator coupled to the head via an elongate flexible sheath. The suturing device is configured to pass a needle and suture through a selected tissue site upon actuation of the actuator. In another embodiment, a suturing device includes a head and a retaining portion configured to receive a guide wire. The suturing device can be inserted into a patient's body using the guide wire to guide and help position the head of the suturing device. In such an embodiment, the suturing device can also include an expandable member coupled to the head and that is configured to be expanded within a body lumen of a patient to help maintain a position of the head within the body lumen. | 03-04-2010 |
20100331960 | ENDOPROSTHESIS AND ENDOPROSTHESIS DELIVERY SYSTEM AND METHOD - An endoprosthesis includes a structure which is self-expandable from a reduced profile to an expanded profile. The structure has one or more longitudinal portions and a transverse central plane about which the one or more longitudinal portions are symmetric. A removable sheath retains the one or more longitudinal portions in the reduced profile. A release structure is coupled to the sheath for removal thereof from the one or more longitudinal portions to provide the self-expansion thereof to the expanded profile. A method for implanting the endoprosthesis into a body of a patient includes inserting the structure which is covered by the sheath into the body of the patient such that the structure has the reduced profile. The release structure is then actuated for removing the sheath from the one or more longitudinal portions to provide the self-expansion to the expanded profile. | 12-30-2010 |
20110251525 | SYSTEMS AND METHODS FOR TREATING LUNG TISSUE - A system for treating lung tissue includes a tube having a distal end, an anchoring device secured to the tube, the anchoring device configured to anchor at least a portion of the tube against an esophagus, a trachea, or a bronchus; and an ablation device carried within a lumen of the tube. | 10-13-2011 |
20110265908 | APPARATUS AND METHOD FOR MANUFACTURING A SINGLE WIRE STENT - A mandrel for manufacturing a stent from a single wire includes a cylindrical member having a plurality of pins at a proximal end region, a plurality of pins at a distal end region, and a plurality of indentations between the proximal pins and the distal pins. These indentations form a helical pattern on the outer surface of the cylindrical member. The single wire is wrapped around every proximal pin and distal pin on the mandrel by following the indentations in the mandrel. The single wire is slid through the indentation under any crossing section of wire and over the next crossing section of wire in an under-over pattern. | 11-03-2011 |
20110307070 | STENT FOR REPAIR OF ANASTOMASIS SURGERY LEAKS - A stent for repairing post-anastomasis (e.g., bariatric) surgery leaks is formed by an elongated tube having a proximal flare-shaped flange, an enlarged middle section, and a distal flare-shaped flange, where an exterior surface of the elongated tube is substantially covered with a polymer. | 12-15-2011 |
20120041534 | STENT DELIVERY SYSTEM WITH INTEGRATED CAMERA - Various methods and devices are described for imaging a body lumen during delivery and deployment of a medical device. In one example, a delivery device includes at least one sheath, a prosthesis, an inner tubular member and at least two cameras to allow visualization of the prosthesis prior, during and after deployment without the use of an endoscope. The at least one sheath and/or the inner tubular member includes at least two cameras engaged to the delivery device. | 02-16-2012 |
20120160408 | Composite ePTFE- Silicone Covering for Stent - A medical device consists of a stent having a first surface and a second surface parallel to the first surface; a single expanded polytetrafluoroethylene (ePTFE) layer contacting the first surface of the stent; and an elastomeric layer applied to at least one surface of the stent. In at least one embodiment, the elastomeric layer is silicone. In at least one embodiment, the medical device is manufactured by positioning the ePTFE layer such that a first surface of the ePTFE layer contacts a first surface of the stent to form a stent-ePTFE assembly; and applying an elastomeric solution to the first surface of the ePTFE layer and at least one surface of the stent. | 06-28-2012 |
20120259407 | Radiopaque Polymeric Stent - The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, at least one radiopaque filament is arranged for permanent attachment to a hollow tubular structure. The filament is desirably arranged in a linear direction traverse to a longitudinal length of the structure, the structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. The radiopaque filament improves external imaging of the tubular structure on fluoroscope or x-ray imaging equipment. | 10-11-2012 |
20130018452 | Anti-Migration Stent with Quill Filaments - A stent that includes a plurality of quill filaments. Each quill filament includes filament material, a surface, and a plurality of quills. Each quill has a tip, a body, and a base where the body extends from the base to the tip. The quill filaments can be interwoven to form the stent or the quill filaments can be engaged to the framework of a stent. | 01-17-2013 |
20130172983 | Stent with Anti-Migration Features - A stent has a first end region, a middle region, and a second end region, each region including a plurality of strut columns. The stent includes at least one barb. Each barb in an expanded state is at an angle relative to the outer surface of the stent. | 07-04-2013 |
20130231734 | Radiopaque Compositions, Stents and Methods of Preparation - The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, a plurality of elongate filaments including one or more radiopaque filaments are arranged to form a hollow tubular structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. | 09-05-2013 |
20140088616 | RELEASE MECHANISM FOR HEMOSTATIC CLIP - A medical device includes a distal portion sized and shaped for insertion into a body lumen and including a capsule having a lumen extending therethrough and a plurality of windows in a proximal end thereof; a bushing including a channel extending therethrough, a distal end thereof including a plurality of arms extending distally therefrom such that a corresponding one of the arms is releasably engagable with a corresponding one of the windows of the capsule, the arms being biased toward a centerline of the bushing in a release configuration; and a bushing support receivable within the channel of the bushing to apply a radially outward pressure to the arms such that the arms lockingly engage the windows of the capsule, the arms formed of a material selected such that movement of the bushing support out of the channel reverts the arms to the release configuration. | 03-27-2014 |
20140236185 | Compression, Banding and Percutaneous Airway Ligation of Emphysematous Lung Tissue - A lung volume reduction system includes a percutaneously, laparoscopically or thorocospically insertable delivery element comprising a control end which remains outside the body and an insertion end which, when in an operative position, is adjacent to an external surface of a target portion of a lung and a constriction element deployable from the distal end of the delivery element to apply compressive force to an external surface of the target portion of the lung to constrict at least one airway therein and collapse the target portion of the lung. | 08-21-2014 |
Patent application number | Description | Published |
20090054972 | ATRAUMATIC STENT WITH REDUCED DEPLOYMENT FORCE, METHOD FOR MAKING THE SAME AND METHOD AND APPARATUS FOR DEPLOYING AND POSITIONING THE STENT - An implantable stent includes a plurality of elongate wires braided to form a hollow tubular structure having a tubular wall to define an interior surface and an exterior surface and having opposed open first and second ends, wherein the opposed open first and second ends are atraumatic ends The atraumatic ends of the stent are desirably free of any loose wire ends. The wires include composite wires to enhance visibility of the wires to provide improved external imaging of the wires in the body. The elongate composite wires of the stent may be metallic wires having an outer metallic portion including a first metal, such as nitinol, and an inner metallic core portion including a second metal, which is a radiopaque material, such as gold, barium sulfate, ferritic particles, platinum, platinum-tungsten, palladium, platinum-iridium, rhodium, tantalum or combinations thereof. | 02-26-2009 |
20090082840 | METHOD FOR LOADING A STENT INTO A DELIVERY SYSTEM - Methods for assembling a stent delivery system are provided, as well as the stent delivery assemblies and devices formed by such methods. Also provided is a method for loading a stent into a delivery system. | 03-26-2009 |
20090220677 | METHOD OF MANUFACTURING A COVERED STENT - A method of manufacturing a covered stent having a sufficiently thick covering to retain a therapeutically effective amount of a therapeutic agent. The covering is applied to the entire outer surface of the stent to provide sufficient volume for retention of the therapeutic agent. In certain embodiments, the stent has a plurality of openings that are covered by the covering. The invention is particularly suited for certain applications, such as for the manufacture of non-vascular stents. | 09-03-2009 |
20100100170 | SHAPE MEMORY TUBULAR STENT WITH GROOVES - An implantable, radially distensible stent includes a tubular structure having opposed open ends. The wall of the stent is made from a shape memory polymeric material. Grooves may be disposed within an outer surface of stent wall to improve flexibility and drainage of the stent. | 04-22-2010 |
20110079315 | ATRAUMATIC STENT WITH REDUCED DEPLOYMENT FORCE, METHOD FOR MAKING THE SAME AND METHOD AND APPARATUS FOR DEPLOYING AND POSITIONING THE STENT - An implantable stent includes a plurality of elongate wires braided to form a hollow tubular structure having a tubular wall to define an interior surface and an exterior surface and having opposed open first and second ends, wherein the opposed open first and second ends are atraumatic ends. The atraumatic ends of the stent are desirably free of any loose wire ends. The wires include composite wires to enhance visibility of the wires to provide improved external imaging of the wires in the body. The elongate composite wires of the stent may be metallic wires having an outer metallic portion including a first metal, such as nitinol, and an inner metallic core portion including a second metal, which is a radiopaque material, such as gold, barium sulfate, ferritic particles, platinum, platinum-tungsten, palladium, platinum-iridium, rhodium, tantalum or combinations thereof. | 04-07-2011 |
20110295359 | Stent With Reduced Weld Profiles and a Closed-End Wire Configuration - A method for making an implantable stent includes the steps of (i) providing a plurality of elongate stent wires; (ii) forming said wires into a hollow tubular structure having opposed first and second open ends; (iii) terminating said wires at the second end; (iv) aligning the wires at the second end into a plurality of mated adjacent wires to define a plurality of abutting regions; (v) welding the mated adjacent wires to one and the other at the abutting regions to define a plurality of welds; and optionally (vi) chemically or electro-chemically removing a portion of the welds. The method may further include the steps of (a) extending at least one of the mated stent wires to provide an extended stent wire; (b) looping the extended stent wire so the extended end abuts a proximal pair of stent wires; and (c) welding the extended and looped wire to the proximal pair of wires. The step of looping may include the forming of the wire into a equilaterally arched loop having an apex, but not having other sharp bends. | 12-01-2011 |
20140018898 | Stent Delivery Device - A stent delivery device has a handle and a sliding body, the sliding body is slidable with respect to the handle. The handle has a grip and a guide. The sliding body has at least two flange portions extending from the sliding body. The flange portions are offset from one another along the length of the sliding body. The operator can thereby deploy a relatively long stent by first gripping the nearest flange portion and pulling the sliding body toward the handle; subsequently, the operator can reposition his/or finger on the next-nearest flange portion and continue deployment of the stent by pulling the sliding body further toward the handle. | 01-16-2014 |
20140074220 | Stent With Reduced Weld Profiles and a Closed-End Wire Configuration - A prosthesis including a composite wire forming a mesh, the mesh having a variable diameter wherein at least one end region has a larger diameter than a middle portion; the mesh having an exterior surface and an interior surface, wherein at least one of the surfaces is covered with silicone; and a retrieval loop positioned at at least one end of the mesh. | 03-13-2014 |
20140081416 | Duodenal Metabolic Stent - In at least one embodiment, the invention is directed to an endoluminal device comprising a stent and a sleeve. In one embodiment, the endoluminal device is implanted in a portion of the gastrointestinal tract. In some embodiments, the stent has a first region and a second region where the first and second regions provide different levels of radial force. In one embodiment, the first region is made from a plurality of first wires having a first diameter and the second region is made from a plurality of second wires having a second diameter which is smaller than the first diameter. In other embodiments, the endoluminal device has at least one engagement mechanism engaging the stent to the sleeve, the endoluminal device to a body lumen, and any combination thereof. In at least one embodiment, the endoluminal device has a wall with at least one opening therein. | 03-20-2014 |
20140121747 | STENT HAVING A TACKY SILICONE COATING TO PREVENT STENT MIGRATION - A stent having an inner surface and an outer surface, at least a portion of the outer surface of the stent comprising a tacky biocompatible coating comprising a tacky polymer material and to methods of delivering and deploying a stent using a tacky biocompatible coating comprising a tacky polymer material. | 05-01-2014 |
20140214150 | ANTI-MIGRATION STENT WITH QUILL FILAMENTS - A stent that includes a plurality of quill filaments. Each quill filament includes filament material, a surface, and a plurality of quills. Each quill has a tip, a body, and a base where the body extends from the base to the tip. The quill filaments can be interwoven to form the stent or the quill filaments can be engaged to the framework of a stent. | 07-31-2014 |
20140276407 | Medical Devices Having Micropatterns - Medical devices having one or more micropatterned surfaces (e.g., micropatterned coatings). | 09-18-2014 |
20140277443 | SUPERHYDROPHOBIC COATING FOR AIRWAY MUCUS PLUGGING PREVENTION - A method for reducing mucus accumulation in an airway including disposing an implantable device within an airway, wherein the implantable device has a first end, a second end, and an inner surface defining a lumen extending from the first end to the second end; wherein at least a portion of the inner surface has a hydrophobic polymer coating thereon, wherein a polymer coating surface has dynamic water contact angles of 145 degrees or greater; and wherein the implantable device is constructed and arranged to maintain patency of the airway; wherein accumulation of mucus is reduced as compared to a similar implantable device without the hydrophobic portion of the inner surface. An implantable medical device having a superhydrophobic surface and a method of making an implantable medical device having a superhydrophobic surface are also provided. An implantable medical device having a micropatterned surface with enhanced adhesion to tissue, optionally in combination with other region(s) having a superhydrophobic surface and a method of making such a device. Methods and devices for prevention of bacterial adhesion to implanted medical devices. | 09-18-2014 |
20140277565 | Delivery Device for Partially Unconstrained Endoprosthesis - An delivery device including an inner tube having an inner tube proximal end region and an inner tube distal end region, the inner tube distal end region comprising a first retaining mechanism; a middle tube having a middle tube distal end region and a middle tube proximal end region and defining a middle tube lumen, the inner tube disposed within the middle tube lumen; and an outer tube having an outer tube proximal end region and an outer tube distal end region and defining an outer tube lumen, the middle tube disposed within the outer tube lumen, the outer tube distal end region comprising a second retaining mechanism; wherein the inner tube is structured and arranged to displace proximally and distally relative to the middle tube, and wherein the outer tube is structured and arranged to displace proximally and distally relative to the middle tube. A method of deploying an endoprosthesis is also disclosed. | 09-18-2014 |
20140288637 | Radiopaque Compositions, Stents and Methods of Preparation - The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, a plurality of elongate filaments including one or more radiopaque filaments are arranged to form a hollow tubular structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. One of the open ends of the stent is formed by an intersection of adjacent filament ends. A radiopaque compound is applied to the intersection, the radiopaque compound comprising radiopaque material and polymeric material. The radiopaque compound and radiopaque filament provide improved external imaging of the tubular structure on imaging equipment. | 09-25-2014 |
20150045876 | DISSOLVABLE OR DEGRADABLE ADHESIVE POLYMER TO PREVENT STENT MIGRATION - A stent having an inner surface and an outer surface, at least a portion of the outer surface of the stent comprising a dissolvable adhesive polymer or a degradable adhesive polymer disposed on at least a portion of the outer surface of the stent, the adhesive is activated by exposure to an aqueous environment, the dissolvable adhesive polymer dissolves over time in an aqueous environment, the dissolvable adhesive polymer or the degradable adhesive polymer has a surface tack of about 2 psi to about 14 psi. | 02-12-2015 |
20150068676 | Composite ePTFE- Silicone Covering for Stent - A medical device consists of a stent having a first surface and a second surface parallel to the first surface; a single expanded polytetrafluoroethylene (ePTFE) layer contacting the first surface of the stent; and an elastomeric layer applied to at least one surface of the stent. In at least one embodiment, the elastomeric layer is silicone. In at least one embodiment, the medical device is manufactured by positioning the ePTFE layer such that a first surface of the ePTFE layer contacts a first surface of the stent to form a stent-ePTFE assembly; and applying an elastomeric solution to the first surface of the ePTFE layer and at least one surface of the stent. | 03-12-2015 |
20150100084 | DEVICES AND METHODS FOR SUTURING - The present disclosure generally relates to medical devices including sutures and methods of use thereof. The medical device may include a suture having projections angled with respect to a longitudinal axis of the suture and a needle coupled to the suture for inserting the suture into tissue, wherein the projections may allow movement of the suture in a first direction and prevent movement in a second direction. The suture may include an anchor at a distal end such that once the needle is removed, the suture may be pulled in a proximal direction to engage the anchor with an inner tissue wall to tighten and secure the suture within the tissue. | 04-09-2015 |
20150374484 | MEDICAL DEVICES AND METHODS TO PREVENT BILE REFLUX AFTER BARIATRIC PROCEDURES - An endoscopic stent for implantation in a patient after sleeve gastrectomy or biliopancreatic diversion with duodenal switch or biliopancreatic diversion with duodenal switch comprising a stent portion, the stent portion comprising a proximal end portion, the proximal end portion defined by a length of about 50 mm to about 200 mm, an enlarged middle portion, a middle portion having an enlarged diameter relative to the proximal end portion and the distal end portion and defined by a length of about 20 mm to about 80 mm, and a distal end portion and a polymeric sleeve portion engaged to and extending distally from the distal end portion of the stent. | 12-31-2015 |