Having Built-in Reinforcement Patents (Class 623/1.32)
  • Patent number: 10405964
    Abstract: The invention relates to a membrane implant for the treatment of vascular malformations, said implant being implantable by endovascular methods into the vessel to be treated, wherein the membrane implant consists of an expandable stent (4) and a membrane (3, 5, 11, 2) connected with the stent (4), with said membrane (3, 5, 11, 4) covering the meshes of the stent (4) at least in a central region, wherein said membrane (2, 3, 5, 11) is provided in the form of a non-woven fabric comprising plastic fibrils, and the membrane (2, 3, 5, 11) forms an integral bond with the stent (4) and, at least partially, is of porous design.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: September 10, 2019
    Assignee: Phenox GmbH
    Inventors: Ralf Hannes, Hermann Monstadt
  • Patent number: 9956069
    Abstract: A prosthesis including a support structure for enhancing kink and/or crush resistance. The support structure is connected to an outer surface of the prosthesis and includes at least two components, one of which has a lower melting point than the other. The component with the lower melting point is used to connect the support structure to the outer surface of the prosthesis.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 1, 2018
    Inventors: Matthew Noesner, Jerry Dong
  • Patent number: 9757260
    Abstract: Tubular prosthesis for deployment in a human body passageway comprises a tubular member adapted for placement in a passageway in a human body and a tube. The tubular member has a tubular wall, first and second end openings, and a side opening formed in the tubular wall between the first and second end openings. The tube has a first end portion and a second end portion. The first end portion of the tube is disposed in the tubular member and has an opening arranged relative to the side opening such that an elongated element (e.g., a guidewire) can be passed through the tube and out from the side opening in the tubular wall where it can enter a branch passageway. The tube can be releasably secured to the tubular member in such as manner that it can be detached from the tubular member and withdrawn after the elongated element is passed through the side opening and placed in a desired position.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: September 12, 2017
    Assignee: Medtronic Vascular, Inc.
    Inventor: Trevor Greenan
  • Patent number: 9629978
    Abstract: Apparatus and methods are provided for making catheters having intermediate layers that minimize or eliminate gaps during layup.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: April 25, 2017
    Assignee: CLPH, LLC
    Inventors: Christian S. Eversull, Stephen A. Leeflang
  • Patent number: 9375326
    Abstract: A prosthesis including a support structure for enhancing kink and/or crush resistance. The support structure is connected to an outer surface of the prosthesis and includes at least two components, one of which has a lower melting point than the other. The component with the lower melting point is used to connect the support structure to the outer surface of the prosthesis.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: June 28, 2016
    Inventors: Matthew Noesner, Jerry Dong
  • Patent number: 9351820
    Abstract: A device for repair surgery of cylindrical organs, particularly ruptured tendons, is configured as a tubular sheath (T) made of a biocompatible and biodegradable polymer. The tubular sheath comprises an elastic fiber mesh formed by electrospinning of said polymer and has an inner wall surface and an outer wall surface substantially parallel thereto. One of said wall surfaces is comparatively rough (WR) and the other one of said wall surfaces is comparatively smooth (WS), with the tubular sheath having a Young elasticity modulus of about 2 to about 5 MPa and an elongation at break of about 50 to about 1,000%. Preferably, the polymer is a biodegradable polyester urethane block copolymer with poly-hydroxy-butyrate as a hard 10 segment and ?-caprolactone as a soft segment.
    Type: Grant
    Filed: August 26, 2012
    Date of Patent: May 31, 2016
    Assignee: University of Zurich
    Inventor: Johanna Buschmann
  • Patent number: 9107742
    Abstract: A stent-graft including a helically-wound stent component provided with a covering of graft material. It is removable from the site of implantation by gripping an end of the helically-wound stent component with a retrieval device and applying tension to the stent component. The use of such a retrieval device allows the stent-graft to be removed remotely, such as via a catheter inserted into the body at a different location from the implantation site. The design of the stent-graft is such that the stent component is extended axially while the adjacent portion of the graft separates between windings of the stent component. The axial extension of the stent component, with portions of the graft still joined to the stent component, allows the device to be unravelled and removed through a catheter of diameter adequately small to be inserted into the body cavity that contained the stent-graft.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 18, 2015
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edward H. Cully, Erin B. Hutchinson, Michael J. Vonesh, Woodrow W. Watson
  • Patent number: 9034028
    Abstract: An expansion ring for a braided stent includes a plurality of elongated forked frame elements forming the expansion ring. Each of the frame elements includes first and second legs extending in one direction and connected together at a junction portion forming a fulcrum allowing compression of the frame elements, and each of the frame elements are threaded through interstices in a tubular body of the braided stent so that the junction portions engage the tubular body of the braided stent. Each of the frame elements is connected sequentially to adjacent frame elements at the ends of the first and second legs, and the expansion ring has a compressed configuration with a first diameter and an expanded configuration with a second diameter larger than the first diameter.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 19, 2015
    Inventor: Juan A. Lorenzo
  • Patent number: 8968386
    Abstract: A stent comprises (a) a first segment that is radially compressible and expandable and (b) a second segment that is substantially rigid in a radial direction. The second segment is bendable to assume a curved configuration while remaining substantially rigid in the radial direction and thereby resisting radial compression and expansion.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: March 3, 2015
    Assignee: The Cleveland Clinic Foundation
    Inventor: Lars G. Svensson
  • Patent number: 8920486
    Abstract: Novel devices and methods for implanting medical stents are provided. A novel apparatus, which may be in a first compressed position, may be inserted into the artery, such as by being positioned over a catheter. The apparatus may be expanded to a second position. In one embodiment, the apparatus is configured to expand away in two substantially opposing directions along a second axis away from the longitudinal axis. The second axis may be perpendicular to the longitudinal axis. The apparatus may include markers that are detectable to determine the orientation of the catheter or the apparatus and/or assist in the determination of the type or size of stent to utilize.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 30, 2014
    Assignee: RBKPark, LLC
    Inventor: Richard Park
  • Patent number: 8876886
    Abstract: A braided stent to be implanted in a blood vessel comprises a hollow body which is stretchable in its longitudinal direction and whose circumferential surface is formed by a braid of a multiplicity of filamentary elements which, in the expanded state of the braided stent, intersect a plane, perpendicular to the longitudinal direction, at a braiding angle. The braided stent has a smaller braiding angle in a central portion than in its distal and proximal portions which adjoin the central portion in the longitudinal direction.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 4, 2014
    Assignee: Jotec GmbH
    Inventors: Ralf Kaufmann, Thomas Bogenschuetz
  • Patent number: 8870936
    Abstract: Methods for restoring the conical shape of a dilated heart ventricle, or at least reshaping the ventricle to a more conical shape to counter the effects of dilation, thereby improving pumping efficiency. In an exemplary embodiment, a reshaping apparatus comprises an implantable body that can be delivered to a dilated left ventricle via the patient's vasculature in a minimally-invasive procedure. When deployed inside the left ventricle, the body is adapted to apply a longitudinal (downward) force against the inner surface of the left ventricle that causes the ventricle to distend or elongate downwardly relative to the base of the heart so as to at least partially restore the conical shape of the heart. In other embodiments, one or more tension members can be secured to heart tissue inside a heart chamber or on the outside of the heart and placed in tension to reshape the geometry of the heart.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: October 28, 2014
    Assignee: Edwards Lifesciences Corporation
    Inventor: Stanton J. Rowe
  • Publication number: 20140277391
    Abstract: A stent configured for implantation in a body lumen includes a plurality of radially expandable circumferential segments, and an axially expandable connecting member connecting adjacent circumferential segments of the plurality. The stent has a relaxed, axially contracted configuration in which the connecting member is contracted axially and each circumferential segment is nested with at least one adjacent circumferential segment. The stent also has a delivery, axially expanded configuration in which the connecting member is expanded axially, and an axial distance between adjacent circumferential segments of the plurality is greater than when the stent is in its relaxed configuration.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Inventors: Ted W. Layman, Stephen C. Porter
  • Patent number: 8771340
    Abstract: Provided are methods, devices, and systems that can be used to deploy prosthetic devices within a bodily lumen of a patient. These methods and devices can include the securement of a prosthetic valve within a vascular lumen by driving one or more fasteners from a position on an expandable device through the valve and into or through a vascular wall.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 8, 2014
    Assignee: Cook Medical Technologies LLC
    Inventor: Eric D. Densford
  • Patent number: 8758426
    Abstract: A tubular graft comprising an internal helical formation which imparts helical flow on fluid passing through the tubular graft. One end of the tubular graft is tapered from an inner base to an outer tip.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: June 24, 2014
    Assignee: Vascular Flow Technologies Limited
    Inventors: Robert Gordon Hood, Craig McLeod Duff
  • Publication number: 20140121744
    Abstract: A vascular device is provided that includes a mesh structure formed of a plurality of spaced members. The structure has (i) a first, collapsed configuration, (ii) a second, expanded configuration, and (iii) a density of the plurality of members. The vascular device further includes an elastic member disposed along a region of the structure, the region having a proximal end and a distal end. The Elastic member is configured to increase the density within the region by drawing at least one of the proximal and distal ends of the region toward the other of the proximal and distal ends when the structure is in the second configuration.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Inventor: Rich KUSLEIKA
  • Patent number: 8696738
    Abstract: A prosthesis including a support structure for enhancing kink and/or crush resistance. The support structure is connected to an outer surface of the prosthesis and includes at least two components, one of which has a lower melting point than the other. The component with the lower melting point is used to connect the support structure to the outer surface of the prosthesis.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 15, 2014
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Matthew Noesner, Jerry Dong
  • Patent number: 8696739
    Abstract: An endoluminal prosthesis includes a support structure including a curvilinear portion having a first strut and a second strut that meet at an apex. Disposed on the support structure is an anchor with an anchor body and one or more barbs extending outwardly from the anchor body. The anchor body can fit at least partially about, and can conform to the first strut, second strut, and the apex. A curved portion of the anchor and the curvilinear portion of the support structure can be co-formed, resulting in a secure interference fit so that welding, soldering, or other joining mechanisms can be avoided. Cutouts can be formed along the curved portion of the anchor to relieve stress or strain during the co-forming process.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: April 15, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: William Kurt Dierking, Carl Agnew, Shuo Yang, Blayne A. Roeder
  • Patent number: 8679173
    Abstract: A hybrid stent (100) includes at least one resilient ring (105) comprising a superelastic wire (102) formed in a sinusoidal pattern of alternating crests (110) and troughs (115) about a circumference of the ring (105). A plurality of malleable cannula segments (120) overlie the superelastic wire at the crests and troughs. Each of the cannula segments (120) includes a bend (125) and has an inner diameter sized to allow relative motion between the wire (102) and the cannula segment (120). The hybrid stent (100) may also include a plurality of gaps (130), where each gap (130) is defined by a spacing between opposing cannula segments (120). Deformation of the malleable cannula segments (120) dominates a response of the stent to substantially uniform radial forces, and deformation of the resilient ring (105) dominates a response of the stent to radially nonuniform crushing forces.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 25, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: W. Kurt Dierking, Alan R. Leewood, Blayne A. Roeder
  • Publication number: 20130197625
    Abstract: The present invention discloses a composite yarn comprising at least one wear-resistant polymeric fiber and at least one flexible polymeric fiber. The present invention also discloses a co-extruded filament comprising a polymeric inner core and a polymeric outer sheath. The polymeric inner core comprises a flexible polymeric material and the polymeric outer sheath comprises a wear-resistant polymeric material. The composite yarn and the co-extruded filament synergistically combine durability and flexibility, and thereby are particularly useful for the construction of graft materials. The present invention further discloses a reinforced fiber graft comprising wear-resistant beads and weaves of flexible polymeric fibers. In another aspect, the present invention discloses a process for assembling a graft device without suture knots by using the inventive co-extruded filament.
    Type: Application
    Filed: March 12, 2013
    Publication date: August 1, 2013
    Applicant: Cordis Corporation
    Inventor: Cordis Corporation
  • Publication number: 20130184808
    Abstract: A medical appliance or prosthesis may comprise one or more layers of rotational spun nanofibers, including rotational spun polymers. The rotational spun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Rotational spun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis. Additionally, one or more cuffs may be configured to allow tissue ingrowth to anchor the prosthesis.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 18, 2013
  • Publication number: 20130131780
    Abstract: The invention relates to medical devices and methods of using them. The devices are prostheses which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The prostheses are configured to have a lattice resistant to dilation and creep, which is defined by a plurality of openings. The prosthesis may also optionally have a stent disposed proximal to the lattice. In exemplary embodiments, the fluoropolymer is expanded polytetrafluoroethylene. The composite materials exhibit high elongation while substantially retaining the strength properties of the fluoropolymer membrane. In at least one embodiment, the lattice is made of a composite material that includes a least one fluoropolymer membrane including serpentine fibrils and an elastomer. A lattice including a generally tubular member formed of a composite material including a least one fluoropolymer membrane containing serpentine fibrils and an elastomer is also provided.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 23, 2013
    Applicant: W. L. Gore & Associates, Inc.
    Inventor: W. L. Gore & Associates, Inc.
  • Publication number: 20130018454
    Abstract: The present invention relates to a hybrid graft and methods of generating the hybrid graft. The hybrid graft comprises an exterior surface and a luminal surface. The luminal surface comprises a micropattern of grooves to which cells adhere and orient along. The exterior surface comprises electrospun microfibers wherein the microfibers provide mechanical properties to the graft. The hybrid graft is capable supporting endothelial cell attachment, endothelial cell alignment, cell proliferation, and maintaining their in vivo function. The graft of the invention can recapitulate the in vivo morphology and function of natural vascular endothelium.
    Type: Application
    Filed: November 24, 2010
    Publication date: January 17, 2013
    Inventors: Peter I. Lelkes, Mengyan Li, Anat Perets, Pimporn Uttayarat, Robert J. Levy, Russell J. Composto
  • Patent number: 8313524
    Abstract: A self-sealing vascular graft, including a substrate with a sealant layer and several optional additional layers, is described. The substrate can be ePTFE and the material used for the sealant and additional layers can be polyurethane. The sealant layer and additional layers may include one or more base layers, one or more foam layers, beading of different sizes and shapes, and ePTFE tape. A flared cuff may be integral to one or both ends of the substrate or may be attached to one or both ends. Various methods of making a self-sealing vascular graft are also described, including methods of disposition, methods of forming, methods of bonding and methods of attaching.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: November 20, 2012
    Assignee: C. R. Bard, Inc.
    Inventors: Tarun J. Edwin, Jamie Abbott, Heidi R. Cole, Chandrashekhar P. Pathak, David L. Bogert, Richard Elton, Fitzroy Brown, Kereshmeh Shahriari
  • Patent number: 8292943
    Abstract: A vascular repair device includes a tubular graft body and a structural framework having at least two stents connected to the graft body. Stents of the structural framework can each be respectively connected to graft body adjacent the proximal and ends and the support member is shorter than the separation distance therebetween to form a gimbal at least at one end. A first stent is connected along an entirety thereof and a second stent is connected at distal apices thereof. Distal apices of the second stent have radii of curvature smaller than proximal apices. A curved longitudinal support member can be connected to the graft body, the support member being substantially symmetrical with respect to the centerline. The support member can be connected to the graft body independent of the structural framework. At least one of the ends of the support member can have a curved longitudinal extremity.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: October 23, 2012
    Assignee: Bolton Medical, Inc.
    Inventors: Humberto A. Berra, Samuel Arbefeuille
  • Patent number: 8283793
    Abstract: An energy harvesting device is provided that may include any of a number of features. One feature of the energy harvesting device is that it is adapted for insertion into a human blood vessel for converting pulsatile pressure in the blood vessel into electrical energy. The energy harvesting device can provide electrical energy to another electronic or electromechanical on or in the human body. The energy harvesting device can include an electrostatic generator. Methods associated with use of the energy harvesting device are also covered.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: October 9, 2012
    Assignee: Autonomic Technologies, Inc.
    Inventor: Benjamin David Pless
  • Patent number: 8252064
    Abstract: Absorbable/disintegratable endourological stents, specifically endoureteral stents, and applicators for their introduction into the biological site, are formed from fiber-reinforced elastomeric films configured to prevent their migration from the application site.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: August 28, 2012
    Assignee: Poly-Med, Inc.
    Inventors: Shalaby W. Shalaby, Kenneth W. Clinkscales
  • Patent number: 8241348
    Abstract: An expandable stent is implanted in a body lumen, such as a coronary artery, peripheral artery, or other body lumen for rupturing a fibrous cap to controllably release vulnerable plaque. The invention provides for a an intravascular stent having a plurality of cylindrical rings connected by links. The stent includes struts and links of varying strengths about the circumference of the stent. The weaker struts and links require less force to open and, hence, may apply more stress to rupture the fibrous cap while the stronger struts and links protect the healthy portions of the body lumen. In another embodiment, the stent may include stress concentrators positioned on outer surfaces of the links. The stress concentrators are aligned with the fibrous cap prior to stent expansion so that upon stent expansion, the stress concentrators induce stress to rupture the fibrous cap, thereby releasing the vulnerable plaque.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: August 14, 2012
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Daniel L. Cox
  • Patent number: 8231669
    Abstract: A tether guided bifurcated stent having a generally tubular main body extending along a longitudinal axis connected to a side branch assembly. Both the main stent body and the side branch assembly are capable of forming an unexpanded configuration and an expanded configuration. The bifurcation's expansion is facilitated by a force exerted by the tether. When the side branch assembly is expanded it forms a secondary tubular region defining a generally tubular shape extending at an angle to the longitudinal axis of the main tubular body.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: July 31, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Matthew J. Miller, Graig L. Kveen
  • Patent number: 8197475
    Abstract: When a main stent-graft is placed in a vessel of a patient and a branch vessel is blocked by the main stent-graft, a RF plasma catheter is used to cut out a portion of the graft cloth of the main-stent graft adjacent to an ostium of the branch vessel to be perfused. To ameliorate possible adverse effects associated with the use of the RF plasma catheter, e.g., creation of coagulum, (desiccated, coagulated blood) or perhaps a cut stent strut, a special process using saline flushing, a novel RF plasma catheter with an insulated tip, or a combination of the two is used.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: June 12, 2012
    Assignee: Medtronic Vascular, Inc.
    Inventors: Walter Bruszewski, Trevor Greenan
  • Patent number: 8182525
    Abstract: Aneurysms are treated by filling a double-walled filling structure with a curable medium. The structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. The filling structures are preferably used in pairs for providing flow into the iliac arteries when treating abdominal aortic aneurysm.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 22, 2012
    Assignee: Endologix, Inc.
    Inventors: Steven L. Herbowy, Matthew R. Hellewell, K. T. Venkateswara Rao, Michael A. Evans, Thomas Howell, Gwendolyn A. Watanabe, Bhupendra Shah, James McKinley
  • Patent number: 8162900
    Abstract: A method of non-delaminably bonding a non-porous thermoplastic elastomer to a substrate by heating a bilayer of the elastomer and the substrate for a predetermined time and a product obtained by the method. Methods for producing non-delaminable conduits and non-delaminable kink-resistant conduits constructed of biocompatible elastomers and substrates, and products produced by these methods are taught. Methods, products, and articles of manufacture relating to non-delaminable monofilament supported kink-resistive conduits that may be used as inflow conduits in left ventricular assist devices for treatment of heart failure are also provided.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: April 24, 2012
    Assignee: Edwards Lifesciences Corporation
    Inventors: Donald T. Shannon, Chris Kuo, Benny Tu, Mike Randall
  • Patent number: 8152843
    Abstract: Improved polymeric endoprostheses having reinforcement elements and methods of making the endoprostheses are disclosed. The devices disclosed exhibit improved overall compliance, selective regional compliance, and selective radial strength without varying the geometries of selected regions. Numerous other physical characteristics of the endoprostheses described may be selectively varied during manufacture. Some embodiments may include an erodible polymer and magnesium. Some embodiments may have one or more therapeutics incorporated into the endoprosthesis via a solvent in a supercritical state.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: April 10, 2012
    Assignee: SyneCor, LLC
    Inventors: Michael S. Williams, Kevin D. Holbrook, Richard A. Glenn, Jeffrey A. Smith, Joseph M. DeSimone
  • Patent number: 8133277
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 13, 2012
    Assignee: Bard Peripheral Vascular, Inc.
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Patent number: 8083806
    Abstract: A radiation and radiochemically sterilized, multi-component, fiber-reinforced composite, absorbable/disintegratable urinogenital stent, such as an endoureteral stent, with radiomodulated residence time in the biological site of 1 to 10 weeks depending on the high energy radiation dose used for sterilization.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: December 27, 2011
    Assignee: Poly-Med, Inc.
    Inventors: Shalaby W Shalaby, Kenneth W Clinkscales, Kenneth David Gray
  • Patent number: 8083805
    Abstract: This invention deals with an absorbable/disintegratable endo-urological stent and applicators for introduction into biological conduits, including such as urethras and ureters, with said stent comprising a fiber-reinforced, multicomponent tube made of polyesters having a range of physicochemical properties.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: December 27, 2011
    Assignee: Poly-Med, Inc.
    Inventor: Shalaby W. Shalaby
  • Patent number: 8066758
    Abstract: A self-sealing vascular graft with kink resistance is described. The vascular graft includes a substrate that can be a PTFE, having a self-sealing region that may include several layers of material. The central section of the vascular graft may be constructed differently from surrounding self-sealing regions, in order to provide kink resistance following the clamping of the graft. Also described is a graft with a flared cuff attached to one or both ends, the attachment or transition region including reinforcement beading.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: November 29, 2011
    Assignee: C. R. Bard, Inc.
    Inventors: David L. Bogert, Jamie Abbott
  • Patent number: 8062354
    Abstract: A tape-reinforced tubular vascular graft formed of sintered fluoropolymer(s), such as expanded, sintered PTFE. The graft includes a base graft and a reinforcing tape applied thereto. The tape may be spirally wrapped about the graft or spirally wrapped into a tube about a cylindrical mandrel and then applied to the exterior of the graft. Radial shrinkage of the combined base graft and tape, or of the reinforcing tape tube, renders the vascular graft subsequently radially enlargeable by more than 5%, without tearing or breaking of the reinforcement tape layer of the graft. Radially enlargeable grafts of the present invention may be combined with various types of stents or anchoring systems, to form endovascular graft devices which are transluminally insertable and implantable within the lumen of a host blood vessel.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: November 22, 2011
    Assignee: Edwards Lifesciences Corporation
    Inventors: Donald Shannon, John McIntyre, Chris Kuo, Chris McCollam, Robert Peterson
  • Patent number: 8057533
    Abstract: An apparatus for use by an operator in a cavity of a mammalian body with a scope having a distal face providing a field of view. The apparatus includes a flexible elongate member having a distal extremity adapted for extending into the cavity and a proximal extremity accessible from outside of the mammalian body when the distal extremity is disposed in the cavity. An expandable prosthesis is releaseably secured to the distal extremity of the flexible elongate member. A visual marker capable of being seen by the operator in the field of view is secured to one of the distal extremity of the flexible elongate member and the prosthesis for facilitating placement of the prosthesis in the mammalian body.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: November 15, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Stephen P. Mangin, Peter J. Shank
  • Patent number: 8057535
    Abstract: The invention provides an implantable medical device comprising a fibrous polymer body comprising a plurality of electrospun poly(urethane) fibers, a support filament wrapped around the body, an outer layer around the filament for adhering the filament to the body, the outer layer comprising a plurality of electrospun poly(urethane) fibers, and a polymer primer coating at least the fibers of the body. The polymer primer comprises poly(lactide) and is attached to a heparin residue through a link.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 15, 2011
    Assignee: Nano Vasc, Inc.
    Inventors: Craig Hashi, Daniel Francis Davidson
  • Patent number: 8048145
    Abstract: Aneurysms are treated by filling at least one double-walled filling structure with a curable medium within the aneurysm. The filling structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. Scaffolds are placed into the tubular lumens in order to help maintain the shape, anchor the filling structures in place, and provide improved blood flow transition into and out of the tubular lumens.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: November 1, 2011
    Assignee: Endologix, Inc.
    Inventors: Michael A. Evans, Gwendolyn A. Watanabe, Amy Lee, Steven L. Herbowy
  • Patent number: 8021412
    Abstract: A leg extension (10) for a stent grafting system to connect between an aortic graft and an iliac graft. The leg extension is a tubular body (12) of a biocompatible graft material with self-expanding stents connected along the length of the tubular body and the tubular body having a distal end with a connection region. The connection region has a flared stent defining an external frusto-conical surface to provide a connection arrangement to engage within an internally flared portion of an iliac graft.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: September 20, 2011
    Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, Werner Dieter Ducke
  • Patent number: 8007674
    Abstract: Described herein are devices and methods fabricating devices having nanostructures that allow adhesion or growth of one cell type, such as endothelial cells, more than another cell type, such as smooth muscle cells. In particular, stent covers having such nanostructures are described, and methods for fabricating these stent covers. Also described herein are methods for optimizing the nanostructures forming the devices.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: August 30, 2011
    Assignee: TiNi Alloy Company
    Inventor: Alfred David Johnson
  • Patent number: 7968036
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: June 28, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7963988
    Abstract: A vascular graft includes a vessel structure having outer and inner wall surfaces. The vessel structure has outer and inner transverse dimensions. The vascular graft includes a fold structure which is integral with the vessel structure. The fold structure extends from the outer or inner wall surface of the vessel structure for altering the inner or outer transverse dimension thereof. A method for making the vascular graft facilitates formation of the fold structure.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: June 21, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: John Peckham, Frank A. Musbach
  • Patent number: 7918885
    Abstract: The invention relates to a vessel prosthesis, particularly for the replacement of aorta segments near the heart, in the form of a pleated flexible tube with folds (3), the tube being configured as an arc, and the arc shape being fixed in an extension-resistant manner, in the non-implanted state, by means of extension limiters.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: April 5, 2011
    Assignee: AESCULAP AG
    Inventors: Hans-Hinrich Sievers, Lisa Lippoth
  • Patent number: 7879085
    Abstract: The present invention provides an expanded tubular graft formed of expanded polytetrafluoroethylene (ePTFE). The graft has first and second open ends and a surface longitudinally extending between the ends. The graft also includes an inner and outer cylindrical walls, where the walls have crimps or corrugations located along the surface of the graft. Additionally, the graft is coated with biocompatible elastomer covering portions of the outer cylindrical walls of the PTFE graft. The resulting ePTFE crimped graft exhibits various enhanced properties, such as adjustable graft length, high kink resistance, improved suture retention and high crush resistance as compared to the same graft without the crimps.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: February 1, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Krzysztof Sowinski, Jamie S Henderson
  • Patent number: 7875069
    Abstract: An implantable stent comprising a first strut having an abluminal surface, and subluminal surface, and at least one side surface; a first depression formed in the abluminal surface; and a first support element at least partially disposed in the first depression; wherein at least a portion of the first support element extends beyond the abluminal surface of the first strut.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: January 25, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Barry Heaney, Dave McMorrow, Anthony Malone, Aiden Flanagan, Tim O'Connor
  • Patent number: 7833263
    Abstract: An implantable vascular graft includes an outer tube structure formed of a textile material, and an inner tube structure formed of a non-textile material. The inner tube structure is within the outer tube structure in coaxial relation therewith. One or both of the outer and inner tube structures have deformable reinforced portions incorporated therein. The deformable reinforced portions provide for conformance of the associated one or both of the outer and inner tube structures to a vessel of a patient. An implantable laminate prosthesis includes a first layer structure formed of textile material, and a second layer structure formed of non-textile material. The first and second layer structures are secured together in laminating relation. The first or second layer structure has a reinforced portion.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: November 16, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Robert C. Thistle
  • Publication number: 20100280598
    Abstract: A vascular graft prosthesis having a reinforced margin designed and configured to strengthen the margin for various purposes, such as to minimize suture hole elongation and prevent suture line tearing during vessel anastomosis, thereby enhancing the vessel anastomosis and the anastomotic site.
    Type: Application
    Filed: December 24, 2008
    Publication date: November 4, 2010
    Inventor: Peter Fox