Patents by Inventor Joseph R. Armstrong
Joseph R. Armstrong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230363895Abstract: Prosthetic valved conduits are provided that include a leaflet construct coupled between two portions of a conduit. Each leaflet has a free edge and a leaflet attachment edge. The leaflet attachment edge is disposed between a first conduit distal end and a second conduit proximal end that are coaxial therebetween defining a junction.Type: ApplicationFiled: February 28, 2023Publication date: November 16, 2023Inventors: Joseph R. Armstrong, Nathan L. Bennett, Kyle W. Colavito, Edwin W. Field
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Patent number: 11617644Abstract: Prosthetic valved conduits are provided that include a leaflet construct coupled between two portions of a conduit. Each leaflet has a free edge and a leaflet attachment edge. The leaflet attachment edge is disposed between a first conduit distal end and a second conduit proximal end that are coaxial therebetween defining a junction.Type: GrantFiled: December 13, 2019Date of Patent: April 4, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Nathan L. Bennett, Kyle W. Colavito, Edwin W. Field
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Publication number: 20230093376Abstract: The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.Type: ApplicationFiled: November 23, 2022Publication date: March 23, 2023Inventors: Joseph R. Armstrong, Edward H. Cully, Michael W. Franklin, Mark Y. Hansen, Brandon A. Lurie, Craig R. McMurray, William D. Montgomery, Wendy J. Terry, Eric M. Tittelbaugh
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Patent number: 11523919Abstract: The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.Type: GrantFiled: June 26, 2019Date of Patent: December 13, 2022Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Michael W. Franklin, Mark Y. Hansen, Brandon A. Lurie, Craig R. McMurray, William D. Montgomery, Wendy J. Terry, Eric M. Tittelbaugh
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Publication number: 20220226137Abstract: The present disclosure includes an endoprosthesis delivery system comprising an elongate member, such as a catheter, an endoprosthesis, a covering member disposed about the endoprosthesis, and at least one flexible element situated between the endoprosthesis and the covering member. The covering member can extend beyond an end of the endoprosthesis. In operation, as the covering member is removed, the flexible element can guide the covering member over the end of the endoprosthesis to prevent entanglement between the end of the endoprosthesis and the covering member.Type: ApplicationFiled: April 8, 2022Publication date: July 21, 2022Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Larry J. Kovach, Douglas F. Pajot, Brandon C. Short, Mark J. Ulm, Michael J. Vonesh
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Patent number: 11324617Abstract: The present disclosure includes an endoprosthesis delivery system comprising an elongate member, such as a catheter, an endoprosthesis, a covering member disposed about the endoprosthesis, and at least one flexible element situated between the endoprosthesis and the covering member. The covering member can extend beyond an end of the endoprosthesis. In operation, as the covering member is removed, the flexible element can guide the covering member over the end of the endoprosthesis to prevent entanglement between the end of the endoprosthesis and the covering member.Type: GrantFiled: December 27, 2017Date of Patent: May 10, 2022Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Larry J. Kovach, Douglas F. Pajot, Brandon C. Short, Mark J. Ulm, Michael J. Vonesh
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Publication number: 20210068996Abstract: 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: ApplicationFiled: November 16, 2020Publication date: March 11, 2021Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
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Publication number: 20210038413Abstract: 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: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
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Patent number: 10835397Abstract: 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: GrantFiled: April 19, 2017Date of Patent: November 17, 2020Assignee: W.L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
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Patent number: 10828185Abstract: 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: GrantFiled: November 16, 2016Date of Patent: November 10, 2020Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
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Publication number: 20200113681Abstract: Prosthetic valved conduits are provided that include a leaflet construct coupled between two portions of a conduit. Each leaflet has a free edge and a leaflet attachment edge. The leaflet attachment edge is disposed between a first conduit distal end and a second conduit proximal end that are coaxial therebetween defining a junction.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Inventors: Joseph R. Armstrong, Nathan L. Bennett, Kyle W. Colavito, Edwin W. Field
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Publication number: 20200022828Abstract: The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.Type: ApplicationFiled: June 26, 2019Publication date: January 23, 2020Inventors: Joseph R. Armstrong, Edward H. Cully, Michael W. Franklin, Mark Y. Hansen, Brandon A. Lurie, Craig R. McMurray, William D. Montgomery, Wendy J. Terry, Eric M. Tittelbaugh
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Publication number: 20190388252Abstract: An open stent (a stent having open space through its thickness at locations between the ends of the stent), incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are preferably longitudinally oriented.Type: ApplicationFiled: September 4, 2019Publication date: December 26, 2019Inventors: Joseph R. Armstrong, Edward H. Cully, Mark Y. Hansen, Brian L. Johnson, Bret J. Kilgrow, Larry J. Kovach, James D. Silverman
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Patent number: 10507101Abstract: Valved conduits are provided that include a leaflet construct coupled between two portions of a conduit. Each leaflet has a free edge and a leaflet attachment edge. The leaflet attachment edge is disposed between a first conduit distal end and a second conduit proximal end that are coaxial therebetween defining a junction.Type: GrantFiled: October 12, 2015Date of Patent: December 17, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Nathan L. Bennett, Kyle W. Colavito, Edwin W. Field
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Patent number: 10507124Abstract: 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: GrantFiled: March 14, 2013Date of Patent: December 17, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
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Patent number: 10456281Abstract: An open stent (a stent having open space through its thickness at locations between the ends of the stent), incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are preferably longitudinally oriented.Type: GrantFiled: March 9, 2017Date of Patent: October 29, 2019Assignee: W.L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Mark Y. Hansen, Brian L. Souter, Bret J. Kilgrow, Larry J. Kovach, James D. Silverman
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Publication number: 20190314154Abstract: Described embodiments are directed toward prosthetic valves having leaflets that move asymmetrically in that a leaflet second side region of the leaflet initially moves toward the open position before a leaflet first side region and the leaflet first side region initially moves toward the closed position before the leaflet second side region. In the fully open position, the leaflet first side region opens less than the leaflet second side region. Asymmetric opening and final open position, in synchrony with the other leaflets having the same motion and final open position creates spiral flow exiting the open valve that increases blood flow on the downstream side of the leaflet and thus reduces stagnation of the blood that might lead to thrombus formation. Controlled asymmetric movement of the leaflet reduces closing volume by initiating closure on the leaflet first side region and finishing closures on the leaflet second side region.Type: ApplicationFiled: June 27, 2019Publication date: October 17, 2019Inventor: Joseph R. Armstrong
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Patent number: 10368984Abstract: Described embodiments are directed toward prosthetic valves having leaflets that move asymmetrically in that a leaflet second side region of the leaflet initially moves toward the open position before a leaflet first side region and the leaflet first side region initially moves toward the closed position before the leaflet second side region. In the fully open position, the leaflet first side region opens less than the leaflet second side region. Asymmetric opening and final open position, in synchrony with the other leaflets having the same motion and final open position creates spiral flow exiting the open valve that increases blood flow on the downstream side of the leaflet and thus reduces stagnation of the blood that might lead to thrombus formation. Controlled asymmetric movement of the leaflet reduces closing volume by initiating closure on the leaflet first side region and finishing closures on the leaflet second side region.Type: GrantFiled: October 25, 2016Date of Patent: August 6, 2019Assignee: W. L. Gore & Associates, Inc.Inventor: Joseph R. Armstrong
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Patent number: 10335298Abstract: The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.Type: GrantFiled: November 22, 2017Date of Patent: July 2, 2019Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Edward H. Cully, Michael W. Franklin, Mark Y. Hansen, Brandon A. Lurie, Craig R. McMurray, William D. Montgomery, Wendy J. Terry, Eric M. Tittelbaugh
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Patent number: D977642Type: GrantFiled: October 29, 2018Date of Patent: February 7, 2023Assignee: W. L. Gore & Associates, Inc.Inventors: Joseph R. Armstrong, Kyle W. Colavito, Steven Cureton, Marc A. Schlaud