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).

  • Publication number: 20200022828
    Abstract: 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: Application
    Filed: June 26, 2019
    Publication date: January 23, 2020
    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
  • Publication number: 20190388252
    Abstract: 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: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventors: Joseph R. Armstrong, Edward H. Cully, Mark Y. Hansen, Brian L. Johnson, Bret J. Kilgrow, Larry J. Kovach, James D. Silverman
  • Patent number: 10507101
    Abstract: 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: Grant
    Filed: October 12, 2015
    Date of Patent: December 17, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Joseph R. Armstrong, Nathan L. Bennett, Kyle W. Colavito, Edwin W. Field
  • Patent number: 10507124
    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: Grant
    Filed: March 14, 2013
    Date of Patent: December 17, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
  • Patent number: 10456281
    Abstract: 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: Grant
    Filed: March 9, 2017
    Date of Patent: October 29, 2019
    Assignee: 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
  • Publication number: 20190314154
    Abstract: 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: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Inventor: Joseph R. Armstrong
  • Patent number: 10368984
    Abstract: 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: Grant
    Filed: October 25, 2016
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Joseph R. Armstrong
  • Patent number: 10335298
    Abstract: 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: Grant
    Filed: November 22, 2017
    Date of Patent: July 2, 2019
    Assignee: 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
  • Patent number: 10166128
    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: Grant
    Filed: November 13, 2012
    Date of Patent: January 1, 2019
    Assignee: W. L. Gore & Associates. Inc.
    Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
  • Publication number: 20180153718
    Abstract: 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: Application
    Filed: November 22, 2017
    Publication date: June 7, 2018
    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
  • Publication number: 20180116842
    Abstract: 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: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    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
  • Publication number: 20180049898
    Abstract: 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: Application
    Filed: March 9, 2017
    Publication date: February 22, 2018
    Inventors: Joseph R. Armstrong, Edward H. Cully, Mark Y. Hansen, Brian L. Johnson, Bret J. Kilgrow, Larry J. Kovach, James D. Silverman
  • Patent number: 9855160
    Abstract: 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: Grant
    Filed: March 5, 2014
    Date of Patent: January 2, 2018
    Assignee: 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
  • Patent number: 9839540
    Abstract: 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: Grant
    Filed: November 16, 2011
    Date of Patent: December 12, 2017
    Assignee: 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
  • Patent number: 9795496
    Abstract: 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: Grant
    Filed: March 11, 2013
    Date of Patent: October 24, 2017
    Assignee: 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
  • Patent number: 9737422
    Abstract: 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: Grant
    Filed: March 11, 2013
    Date of Patent: August 22, 2017
    Assignee: 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
  • Publication number: 20170216062
    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: April 19, 2017
    Publication date: August 3, 2017
    Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
  • Patent number: 9622888
    Abstract: 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: Grant
    Filed: November 16, 2006
    Date of Patent: April 18, 2017
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Joseph R. Armstrong, Edward H. Cully, Mark Y. Hansen, Brian L. Johnson, Bret J. Kilgrow, Larry J. Kovach, James D. Silverman
  • Publication number: 20170065400
    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 16, 2016
    Publication date: March 9, 2017
    Inventors: Joseph R. Armstrong, Edward H. Cully, Jeffrey B. Duncan, Mark Y. Hansen, William D. Montgomery, Wendy J. Terry
  • Publication number: 20170042674
    Abstract: 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: Application
    Filed: October 25, 2016
    Publication date: February 16, 2017
    Inventor: Joseph R. Armstrong