Helically Wound Patents (Class 623/1.22)
  • Patent number: 10792413
    Abstract: An apparatus and method are provided to treat a stenosis. A delivery device is provided that has an elongate tubular member coupled therewith. The elongate tubular member has an outside surface that is configured to prevent adherence of in vivo matter. The tubular member has a proximal end and a distal end and is reinforced along its length to maintain open lumen under a transverse load. The tubular member is placed in the vasculature such that the distal end of the elongate tubular member is disposed distal of a stenosis. The proximal end of the elongate tubular member is disposed inside the vessel, preferably at a location proximal of the stenosis. Thereafter, after a therapeutic period, the elongate tubular member is removed intact.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 6, 2020
    Inventors: Mitchell Dann, Judson A. Herrig, Stephen Hohmann
  • Patent number: 10744008
    Abstract: A tip end portion of a strand forming a stent is rounded off. In a stent 10 formed by helicoidally braiding a plurality of strands 20, the tip end portion of each of the strands 20 is rounded off.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 18, 2020
    Assignee: PENTAS Inc.
    Inventor: Makoto Nishigishi
  • Patent number: 10646359
    Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: May 12, 2020
    Assignee: Amaranth Medical Pte.
    Inventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang
  • Patent number: 10588762
    Abstract: Implantable device embodiments, such as stents, and particularly esophageal stents, formed of a scaffolding structure are disclosed. The scaffolding structure is formed of one or more strand elements arranged in a braided pattern. A covering may coat the scaffolding structure. A valve can be secured to the scaffolding structure and/or the covering. Anti-migration features may be formed by bends in the one or more strand elements. The bends forming the anti-migration features protrude outwardly away from an outer surface of the implantable device.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: March 17, 2020
    Assignee: Merit Medical Systems, Inc.
    Inventors: Darla Gill, Zeke Eller, Rich Snider, Trent Clegg
  • Patent number: 10583019
    Abstract: A stent is disclosed that has an elongated body having a proximal end, a distal end, at least one open spiral channel formed on the exterior surface of the body to provide fluid communication between the proximal end and the distal end. The stent also has a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire. A method for using the stent and a kit containing the stent are also disclosed.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 10, 2020
    Assignee: Q3 MEDICAL DEVICES LIMITED
    Inventor: Eric K. Mangiardi
  • Patent number: 10500382
    Abstract: A stent including a hollow wire formed into a stent pattern. The hollow wire includes an outer member having an outer surface and an inner surface, a lumen extending longitudinally within the hollow wire, at least one opening extending from the outer surface of the outer member to the lumen, and a plurality of filaments extending longitudinally within the lumen. The plurality of filaments increases the amount of surface area available for tissue in-growth within the lumen. Each filament of the plurality of filaments is spaced from adjacent filaments of the plurality of filaments, and the spacing between adjacent filaments of the plurality of filaments is configured to permit tissue in-growth between the adjacent filaments.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 10, 2019
    Assignee: Medtronic Vascular, Inc.
    Inventors: Ryan Bienvenu, Justin Peterson, Stefan Tunev, Michael Harms
  • Patent number: 10420570
    Abstract: A self-expandable mechanical clot retrieval device is designed variously to dislodge, engage and retract blood clot from extremely small and tortuous vasculature. The retrieval device comprises an elongate member and a plurality of ring elements. The ring elements may comprise a plurality of struts and crowns interconnected by a tether formed at a distal end of the elongate member or may be a separate component attached thereto. At least one tether may connect each ring element to the elongate member to restrain the ring element in a collapsed configuration during delivery of the retrieval device through an intravascular microcatheter. The tether connecting the ring element to the elongate member disengages when the retrieval device is positioned at the occluded site and the microcatheter is retracted to allow the self-expandable ring elements to reach an expanded configuration.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: September 24, 2019
    Assignee: Neuravi Limited
    Inventors: David Vale, Michael Gilvarry, Eamon Brady, Mahmood Razavi
  • Patent number: 10258341
    Abstract: A medical filler delivery assembly includes a micro catheter for delivering filler material such as filamentary material into an aneurysm in a vessel, the assembly also including a positioning mechanism which includes a support element made of knitted wires, as well as an expansion mechanism for expanding the support element within the vessel. The wires form an array of polygonal, preferably rhomboidal cells, the wires being intertwined at their junctions by at least one turn around one another, the intertwined regions extending in the longitudinal direction of the support element. The support element is able to trap the micro catheter in position and in practice such that its distal end is disposed within the aneurysm sac.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 16, 2019
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Aidan P. Furey, Palle Munk Hansen
  • Patent number: 10149776
    Abstract: A braided stent having an integral retrieval and/or repositioning loop includes a plurality of wires having first and second ends interbraided in a braided pattern to form a tubular stent having opposed atraumatic first and second open ends with each open end having a circumference; wherein said first and second wires ends are disposed at said second stent open end and said wires are looped at said second stent open end so that none of the first or second wires ends are exposed at the circumference of second stent open end; wherein at least of two of said wires are formed into a repositioning and/or retrieval loop having an elongated portion circumferentially disposed at said first opposed open end; and wherein said reposition and/or retrieval loop comprises two sections which run adjacent to each other prior to crossing to permit grabbing of both sections simultaneously by a practitioner.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: December 11, 2018
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Peter Brady, Richard Crawford, Kathryn Portale, Paul K. Norton, John J. Damarati, Tim Lysaght
  • Patent number: 10111766
    Abstract: A braided stent having an integral retrieval and/or repositioning loop includes a plurality of wires having first and second ends interbraided in a braided pattern to form a tubular stent having opposed atraumatic first and second open ends with each open end having a circumference; wherein said first and second wires ends are disposed at said second stent open end and said wires are looped at said second stent open end so that none of the first or second wires ends are exposed at the circumference of second stent open end; wherein at least of two of said wires are formed into a repositioning and/or retrieval loop having an elongated portion circumferentially disposed at said first opposed open end; and wherein said reposition and/or retrieval loop comprises two sections which run adjacent to each other prior to crossing to permit grabbing of both sections simultaneously by a practitioner.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 30, 2018
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Peter Brady, Richard Crawford, Kathryn Portale, Paul K. Norton, John J. Damarati, Tim Lysaght
  • Patent number: 10098772
    Abstract: A stent graft is disclosed and can include a stent and a graft engaged with the stent. The graft can include an inner surface and an outer surface. Further, at least one of the inner surface and the outer surface can include a plurality of protrusions as viewed in cross section extending through a longitudinal axis.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: October 16, 2018
    Assignee: C. R. Bard, Inc.
    Inventors: Robert G. Lerdahl, Chandrashekhar Prabhakar Pathak, R. Michael Casanova
  • Patent number: 10076429
    Abstract: The invention relates to a membrane implant (1) for treatment of cerebral artery aneurysms (10), wherein the implant can be implanted endovascularly into vessel segments (2) at the craniocerebral base of pathological (aneurysmatic) dilation (10) and, in combination with a stent, bridges the diseased vessel segment (2) from inside and disconnects it from the blood stream, wherein the membrane implant (1) comprises a biocompatible plastic membrane in the shape of a cylinder or a segment of a cylinder.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: September 18, 2018
    Assignee: Phenox GmbH
    Inventor: Harald Sahl
  • Patent number: 9999490
    Abstract: Disclosed herein are devices and methods for intra-vaginal bowel control.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 19, 2018
    Assignee: Pelvalon, Inc.
    Inventors: Miles Harris Rosen, Steven Lawrence Herbowy, Jared Goor, Narvel M. Brooks
  • Patent number: 9895217
    Abstract: The technology described herein relates to a stent graft and a method of making the stent wherein the stent comprises interconnected struts and is connected to the graft material by applying at least one band of polymer so as to cover at least a portion of at least some of the struts. A stent supported area is created by the stent's attachment to the graft material and the at least one band of polymer is applied so as to leave the majority of the stent supported area uncovered by the at least one band of polymer.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: February 20, 2018
    Assignee: Cook Medical Technologies LLC
    Inventors: Jichao Sun, Natalie M. Abell, Neal E. Fearnot, Alan R. Leewood, James D. Purdy
  • Patent number: 9814608
    Abstract: 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.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: November 14, 2017
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Claude O. Clerc, Barry Weitzner
  • Patent number: 9801741
    Abstract: A personalized prosthesis for implantation at a treatment site of a patient includes a self-expanding mesh or membrane having collapsed and expanded configurations. The collapsed configuration is adapted to be delivered to the treatment site, and the expanded configuration engages the personalized prosthesis with the treatment site. The mesh or membrane is personalized to match the treatment site in the expanded configuration, and has an outer surface that substantially matches the treatment site shape and size. The self-expanding mesh or membrane forms a central lumen configured to allow blood or other body fluids to flow therethrough. Methods of manufacturing and delivery of the personalized prosthesis are also disclosed.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 31, 2017
    Assignee: AneuMed, Inc.
    Inventor: Hira V. Thapliyal
  • Patent number: 9801739
    Abstract: A personalized prosthesis for implantation at a treatment site of a patient includes a self-expanding mesh or membrane having collapsed and expanded configurations. The collapsed configuration is adapted to be delivered to the treatment site, and the expanded configuration engages the personalized prosthesis with the treatment site. The mesh or membrane is personalized to match the treatment site in the expanded configuration, and has an outer surface that substantially matches the treatment site shape and size. The self-expanding mesh or membrane forms a central lumen configured to allow blood or other body fluids to flow therethrough. Methods of manufacturing and delivery of the personalized prosthesis are also disclosed.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 31, 2017
    Assignee: AneuMed, Inc.
    Inventor: Hira V. Thapliyal
  • Patent number: 9772621
    Abstract: The application provides molds for the manufacture of intraluminal endoprostheses and methods for their manufacture. In particular embodiments, the methods comprise the steps of providing a 3D model of the mold, meshing the model, manufacturing a mold based on said meshed 3D model. Also provided herein are methods for manufacturing an endoprosthesis using said mold.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: September 26, 2017
    Assignee: MATERIALISE N.V.
    Inventors: Peter Verschueren, Jari Heikki Petteri Pallari, Koen Engelborghs, Wilfried Vancraen
  • Patent number: 9744060
    Abstract: A personalized prosthesis for implantation at a treatment site of a patient includes a self-expanding mesh or membrane having collapsed and expanded configurations. The collapsed configuration is adapted to be delivered to the treatment site, and the expanded configuration engages the personalized prosthesis with the treatment site. The mesh or membrane is personalized to match the treatment site in the expanded configuration, and has an outer surface that substantially matches the treatment site shape and size. The self-expanding mesh or membrane forms a central lumen configured to allow blood or other body fluids to flow therethrough. Methods of manufacturing and delivery of the personalized prosthesis are also disclosed.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 29, 2017
    Assignee: AneuMed, Inc.
    Inventor: Hira V. Thapliyal
  • Patent number: 9687367
    Abstract: Stent embodiments formed of a scaffolding structure are disclosed. Some embodiments may include a valve. A portion of the scaffolding structure may include a lattice structure formed by a plurality of interconnected arms arranged to form quadrilateral-shaped cells, such as diamond-shaped cells. The scaffolding structure may be formed by rows of strut arms arranged as annular segments and adjacent annular segments interconnected by connectors that extend in the longitudinal direction. The scaffolding structure may also be formed by rows of strut arms arranged in a helical pattern. The scaffolding structure has components configured to allow at least a portion of the stent to decrease in diameter in response to an axial force applied to the stent. Further, the components and elements of the stent may be configured to balance transverse forces applied to the stent, thus reducing the incidence of infolding.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: June 27, 2017
    Assignee: Merit Medical Systems, Inc.
    Inventors: Darla Gill, Zeke Eller, Rich Snider, Trent Clegg
  • Patent number: 9687346
    Abstract: An annuloplasty repair segment for heart valve annulus repair. In one embodiment a multi-stranded cable replaces solid core wire for both the tricuspid and mitral valves. Cable allows for greater deployment flexibility for minimally-invasive surgical (MIS) implant, while still maintaining the required strength and similar tensile properties of solid-core wire. Stranded cable provides a MIS annuloplasty ring with sufficient flexibility in the x-y plane to allow a surgeon to squeeze the ring into a small incision, such as being able to pass through an 18 Fr or smaller catheter, while maintaining structural rigidity under forces exerted on the implanted ring by the cardiac cycle. The particular shape of the annuloplasty ring is fixed using a heat setting process.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 27, 2017
    Assignee: Edwards Lifesciences Corporation
    Inventors: John F. Migliazza, Ruggero De Paulis
  • Patent number: 9675439
    Abstract: A stent-graft comprises a substantially tubular graft material, and a stent coupled to the graft material. The stent has proximal and distal ends and further has compressed and deployed states. The proximal end is disposed proximally beyond a proximal edge of the graft material, and the distal end has at least one portion overlapping with the proximal edge of the graft material. In one example, the stent comprises at least one distal apex having a bifurcation extending into first and second leg regions. A distal end of the first leg region is positioned to overlap the graft material at a location circumferentially spaced apart from a location at which a distal end of the second leg region overlaps the graft material in the deployed state.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 13, 2017
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: William J. Havel, Matthew S. Huser, Jarin Kratzberg, Shuo Yang
  • Patent number: 9656046
    Abstract: A fixator assembly comprising a fixator for fixing inside a blood vessel, the fixator being able to slide proximally along a guide wire. The assembly comprising means for preventing the fixator from moving distally of the preventing means. A tubular element for introduction into a blood vessel of a person, the tubular element comprising an end opening and a plurality of side openings as well as a transport wire extending from inside the tubular element and to the surroundings thereof through an individual side opening.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: May 23, 2017
    Assignee: ENDOVASCULAR DEVELOPMENT AB
    Inventor: Krister Liungman
  • Patent number: 9585772
    Abstract: A stent for medical use includes: a main body which includes a first rigid portion formed in a tubular shape along a longitudinal axis and having a predetermined rigidity with respect to a compression force exerted in a radial direction and a second rigid portion having a rigidity less than that of the first rigid portion, the second rigid portion which is substantially coaxial with and continues to a proximal end of the first rigid portion, and the second rigid portion which formed in a tubular shape along the longitudinal axis; and a gripping target region which is provided on an outer circumferential surface of the second rigid portion and is gripped by a gripping tool when the main body is led into a channel of an endoscope.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: March 7, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Yusuke Nomura, Toshihiro Yamagata, Madoka Kiyokawa
  • Patent number: 9526609
    Abstract: The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an anchor having an expandable braid. In some embodiments, the expandable braid is fabricated from a single strand of wire. In some embodiments, the expandable braid comprises at least one turn feature. The anchor and the valve preferably are configured for endovascular delivery and deployment.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: December 27, 2016
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Amr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn
  • Patent number: 9492269
    Abstract: An endoluminal prosthesis including a radially expandable support member having interior and exterior surfaces and a wall with openings, a first covering member including a biocompatible polymer material at least partially positioned against the interior surface, and a second covering member including a biocompatible polymer material at least partially positioned against the exterior surface. The first covering member attaches to the second covering member at predetermined bonding locations within less than all of the openings thereby leaving unbonded regions.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: November 15, 2016
    Inventors: Tarun J. Edwin, Scott L. Randall, Brendan McCrea, Christopher E. Banas
  • Patent number: 9480585
    Abstract: The invention concerns an endovascular implant comprising a biodegradable material and having a tubular main body which is open at the ends and which is dilatable from an unexpanded condition into an expanded condition. The implant is so designed that when the implant in the expanded condition is subjected to a radially acting compression pressure in the range of between 5 and 30 kPa (0.05-0.3 bar) a cross-sectional area of the implant is reduced to 70% or less of the original cross-sectional area, or an internal volume of the implant is reduced to 70% or less of the original internal volume.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 1, 2016
    Assignee: BIOTRONIK VI PATENT AG
    Inventors: Bodo Gerold, Claus Harder, Bernd Heublein, Eva Heublein, Nora Heublein, Christoph Heublein, Heinz Mueller
  • Patent number: 9295568
    Abstract: Described herein are flexible implantable occluding devices that can, for example, navigate the tortuous vessels of the neurovasculature. The occluding devices can also conform to the shape of the tortuous vessels of the vasculature. In some embodiments, the occluding devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device. In some embodiments, the occluding devices allows adequate blood flow to be provided to adjacent structures such that those structures, whether they are branch vessels or oxygen-demanding tissues, are not deprived of the necessary blood flow.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: March 29, 2016
    Assignee: Covidien LP
    Inventors: Aaron L. Berez, Quang Q. Tran
  • Patent number: 9283305
    Abstract: A method of a forming a hollow, drug-eluting medical device includes providing composite member having an outer member and a core member disposed within a lumen of the outer member. The composite member is shaped into a pattern. Openings are formed through the outer member of the composite member. The composite member is processed to remove the core member from the lumen of the outer member without harming the outer member, leaving a hollow tubular member already formed into the desired pattern. The lumen of the outer member is filled with a therapeutic substance.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 15, 2016
    Assignee: Medtronic Vascular, Inc.
    Inventors: Matthew J. Birdsall, Christopher Storment, D. H. Perkins, Dustin Thompson
  • Patent number: 9259339
    Abstract: A biodegradable stent prosthesis formed from a degradable polymeric material, having a plurality of luminal, abluminal, and side surfaces, where at least some of the abluminal surfaces are concave and optionally the side surfaces are convex.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 16, 2016
    Assignee: ELIXIR MEDICAL CORPORATION
    Inventors: John Yan, Vinayak Bhat
  • Patent number: 9259338
    Abstract: In embodiments there is described a cardiovascular tube-shaped lockable and expandable bioabsorbable scaffold having a low immunogenicity manufactured from a crystallizable bioabsorbable polymer composition or blend.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 16, 2016
    Assignee: ORBUSNEICH MEDICAL, INC.
    Inventors: Robert J. Cottone, Shusheng Ye, John Pazienza
  • Patent number: 9227388
    Abstract: Devices and methods for attaching support frames to substrates to form articles such as implantable stent grafts can include providing a first laminate material; positioning a support frame onto the first laminate material, the support frame having a pre-formed shape; positioning a second laminate material onto the support frame and first laminate material; bonding the first laminate material to the second laminate material; cutting the first and second laminate materials along opposite sides of the support frame thereby forming a laminated support frame having generally the same pre-formed shape of the support frame; and attaching the laminated support frame to a substrate.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 5, 2016
    Assignee: W. L. GORE & ASSOCIATES, INC.
    Inventors: Brandon C. Hedberg, William H. Wiley, Edward E. Shaw
  • Patent number: 9220522
    Abstract: Systems for treatment of ischemic stroke can include tethered baskets. A basket can be tethered to a pusher or elongate member. A temporary reperfusion device or temporary capture device also can be tethered to the pusher or elongate member.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: December 29, 2015
    Assignee: Covidien LP
    Inventors: John Fulkerson, David A. Ferrera
  • Patent number: 9168135
    Abstract: A device is provided for collapsing a stented bioprosthetic valve, including first section and second sections, each spanning between first and second ends of the device. The second section of the device is associated with the first section to at least partially enclose an internal cavity formed by the first and second sections, the internal cavity tapering from an open insertion portion at a first end of the device to an open exit portion at a second end of the device. The insertion portion has a larger dimension than the exit portion. When the first section and second section are substantially enclosing the internal cavity, a stented bioprosthetic valve may be inserted into the insertion portion and collapsed as it is moved toward and through the exit portion. The valve may then be loaded on an apparatus for insertion into the body.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 27, 2015
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Theodore Paul Dale, Aaron J. Chalekian, Valerie J. Glazier, Huisun Wang
  • Patent number: 9155639
    Abstract: An expandable helical stent is provided, wherein the stent may be formed of a main stent component and a securement. The main stent component is formed from a flat strip having one or more undulating side bands that may be connected to form geometrically shaped cells and are helically wound to form a stent. The helical coils of the main stent component may be spaced apart or nestled to each other. The nestling of the undulation of adjacent helical windings contributes to maintaining the tubular shape and uniformity of the helically coiled stent. Alternatively, the flat strip may comprise a single undulating pattern. At the ends of the main stent component are end bands, which when wound, form a cylindrical ring. In one embodiment, one or more struts of the main stent component may have a width sufficient to include one or more fenestrations. The fenestrated struts may be connected by loops or turns wherein the material is narrower than that of the fenestrated struts to provide enhanced flexibility.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: October 13, 2015
    Assignee: Medinol Ltd.
    Inventor: Jacob Richter
  • Patent number: 9155640
    Abstract: According to one aspect of the present disclosure, a method and technique for manufacturing a stent is disclosed. The stent is a non-metallic stent having a furled small-diameter state and an expanded large-diameter state where the stent, in the furled small-diameter state, includes a plurality of central lobes arranged at spaced apart intervals and extending longitudinally defining a stent axis, the plurality of central lobes defining a cylindrical plane of the stent. The stent also includes at least one peripheral lobe formed on at least one of the plurality of central lobes, the peripheral lobe oriented along the cylindrical plane.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: October 13, 2015
    Inventor: Treā€² Raymond Welch
  • Patent number: 9101473
    Abstract: Endovascular prostheses are disclosed that are configured to repair a native venous valve having improper or non-existent valve leaflet coaptation caused by vessel weakness and/or distention. The prostheses are configured to be implanted in the venous system immediately downstream of the malfunctioning valve and act as repair devices to restore proper function to the venous valve by reconfiguring and supporting the valve leaflets and thereby improving their coaptation.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: August 11, 2015
    Assignee: Medtronic Vascular, Inc.
    Inventors: Fiachra Sweeney, Michael Cummins, Kent Martin, Stefanie Ahlrichs
  • Patent number: 9060889
    Abstract: A stent includes a continuous wave form having a plurality of struts and a plurality of crowns throughout the wave form. Each crown connects two adjacent struts. The wave form is wrapped around a longitudinal axis to define a central portion and two end portions located on opposite sides the central portion. The central portion includes a plurality of turns wrapped around the longitudinal axis and oriented at a first pitch angle relative to the longitudinal axis. The end portions each include a plurality of turns wrapped around the longitudinal axis and oriented at different pitch angles, and an end turn oriented at an angle relative to the longitudinal axis. The different pitch angles of the end portions are between the first pitch angle and the angle of the end turn relative to the longitudinal axis.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: June 23, 2015
    Assignee: Medtronic Vascular, Inc.
    Inventors: Richard Bliss, Justin Goshgarian, Rui Lam, Padraig Savage, Erik Griswold, Gianfranco Pellegrini, Matthew Baldwin, Lance Ensign
  • Patent number: 9056157
    Abstract: An intraluminal stent, an intraluminal stent delivery system, and a method of treating a vascular condition. The stent includes a framework composed of a biodegradable material. At least one strut is composed of a non-biodegradable material. The framework is operably attached to the at least one strut. The delivery system includes a catheter and a stent disposed on a portion of the catheter. The stent includes a framework composed of a biodegradable material. The stent further includes at least one strut composed of a non-biodegradable material. The framework is operably attached to the at least one strut. The method includes positioning an intraluminal stent via a catheter within a vessel. The stent includes at least one strut that is composed of a non-biodegradable material and is operably attached to a framework. The framework expands during deployment of the intraluminal stent. The framework is allowed to biodegrade within the vessel.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: June 16, 2015
    Assignee: Medtronic Vascular, Inc.
    Inventors: Junghwa Jenn Cho, Joseph D. Berglund
  • Patent number: 9055999
    Abstract: An endovascular prosthesis is disclosed that includes a tubular graft and a radiopaque marker attached to envelop or enfold an edge of the tubular graft. A first segment of the radiopaque marker extends against an interior surface of the tubular graft and a second segment of the radiopaque marker extends against an exterior surface of the tubular graft such that the first and second segments sandwich or straddle the edge of the tubular graft. The radiopaque marker may include a living hinge that demarcates the first and second segments and aligns with the tubular graft edge when the radiopaque marker is attached thereto. The radiopaque marker may have a substantially U shape with the first and second segments biased toward each other by an end segment such that the end segment aligns with the tubular graft edge when the radiopaque marker is attached thereto.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: June 16, 2015
    Assignee: Medtronic Vascular, Inc.
    Inventors: Richard Thomas, Dustin Sneed
  • Patent number: 9044351
    Abstract: An implant delivery system has one or more interlock assemblies which connect the implant delivery catheter to the implant, an improved inner tubular member and an outer tubular member. The interlock assemblies, improved inner tubular member and outer tubular member cooperate to place the implant in tension during deployment, thereby reducing implant deployment force.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: June 2, 2015
    Assignee: Covidien LP
    Inventors: Lixiao Wang, Jianlu Ma, Joe Tatalovich, Peggy Waltz, Keith Smythe, Rich Kusleika
  • Publication number: 20150148887
    Abstract: A self expanding flexible or balloon expandable flexible device includes a helical strut member helically wound about an axis of the stent. The helical strut member comprises a plurality of helical strut elements. A plurality of individual helical elements are helically wound about the axis of the device in the same direction of the helical strut member with the helical elements extending between and interconnecting points on subsequent windings of the helical strut member. The device can be a flow diverter, anchor, revascularization device or filter. A self expanding flexible bifurcation device can include at least one leg. The at least one leg comprising the helical strut member and the plurality of individual helical elements helically wound about the axis of the device in the same direction of the helical strut member with the helical elements extending between and interconnecting points on subsequent windings of the helical strut member.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Applicant: FLEXIBLE STENTING SOLUTIONS, INC.
    Inventors: Bradley Beach, Janet Burpee
  • Publication number: 20150148888
    Abstract: A stent is provided with braided filaments. First and second filaments are braided with each other and extend spirally around the stent wall in opposite directions. One or more third filaments are braided with the first filaments and extends spirally around the stent wall only in the direction of the second filaments. The third filament is stiffer than the first and second filaments, and there are fewer third filaments than the first and second filaments.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Keith R. Milner, Sara M. Sherman, JR., Brian D. Choules
  • Patent number: 9039755
    Abstract: An expandable helical stent with a securement is provided. The stent is formed from flat or tubular metal in a helical coiled structure which has an undulating pattern. The main stent component may be formed of a single helically coiled component. Alternatively, a plurality of helically coiled ribbons may be used to form a stent heterogeneous in design, material, or other characteristi. The helical tubular structure may be secured with a securement, such as a weld, interlock or a polymer, to maintain the helical coils in a tubular configuration. The helical coils of the main stent component may be spaced apart or nestled to each other. The nestling of the undulation of adjacent helical coils contributes to maintaining the tubular shape of the helically coiled stent. In addition, the nestling of helical coils may prevent the polymer layer from sagging at any point between cycles of the helical coils.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: Medinol Ltd.
    Inventor: Jacob Richter
  • Patent number: 9039754
    Abstract: A stent, having a central axis that extends in a longitudinal direction of the stent, includes a first strand group and a second strand group. The first strand group and the second strand group are woven together. The first strand group is wound in a right-handed spiral around the central axis and the second strand group is wound in a left-handed spiral around the central axis. A maximum diameter of first strands constituting the first strand group is different from a maximum diameter of second strands constituting the second strand group.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: May 26, 2015
    Assignee: ASAHI INTECC CO., LTD.
    Inventor: Makoto Nishigishi
  • Patent number: 9034030
    Abstract: An arrangement for temporarily retaining a side arm (36) of a stent graft (30) in a selected position during loading thereof onto a deployment device, the side arm extending from an ostium (38) in the tubular body (32) and substantially helically around and along the tubular body to an open end (40). A first tie down wire (48) is stitched through the tubular body and through the side arm and then through the biocompatible graft material of the tubular body at the open end of the side arm. The stent graft can then be loaded into a sheath of a deployment device for the stent graft. There can be a second tie down wire (50) stitched through the biocompatible graft material of the tubular body and through the side arm and then through the biocompatible graft material of the tubular body at the ostium end of the side arm. The first and/or second tie down wires can be withdrawn after the stent graft is loaded into the sheath or left in place until delivery.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: May 19, 2015
    Assignee: Cook Medical Technologies LLC
    Inventor: Gwynne Hannay
  • Publication number: 20150134043
    Abstract: The current invention comprises tubes that can be constrained and expanded by either axial or torsional strain. By torsionally displacing the tube in a direction counter to the biased helices and angularly displacing the lower angle helix to an angle equal to, but opposite, the starting angle, the tube is expanded diametrically with no significant change in length after expansion of the tube. These tubes find utility in medical and non medical applications.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 14, 2015
    Inventors: Craig W. Irwin, James D. Silverman
  • Patent number: 9022024
    Abstract: Methods and devices are disclosed for manipulating the airway, such as to treat obstructive sleep apnea. An implant is positioned within the body with respect to the airway. The spatial orientation of the airway is manipulated, directly or indirectly, to affect the configuration of the airway. In general, the implant is manipulated to displace the trachea in an inferior direction, resist superior displacement of the trachea and/or to alter the tracheal wall tension. The implant restrains the trachea in the manipulated configuration.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: May 5, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Andrew Frazier, Chad C. Roue, Michael T. Dineen, Erik J. Van Der Burg
  • Patent number: 9017395
    Abstract: 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.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: April 28, 2015
    Assignee: Novostent Corporation
    Inventors: Michael Hogendijk, Gerald Ray Martin, Eric W. Leopold, Mary Ann Parker
  • Publication number: 20150105854
    Abstract: Methods for making a magnesium biodegradable stent for medical implant applications, using magnesium foil or pure magnesium or magnesium alloys that are biodegradable and performing a lithographic technique to configure the features and dimensions of the magnesium foil, and rolling the magnesium foil to form a cylinder.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 16, 2015
    Inventors: Vesselin N. Shanov, Prabir Roy-Chaudhury, Mark J. Schulz, Zhangzhang Yin, Begona Campos-Naciff, Yang Wang