Patents Assigned to W. L. Gore & Associates, Inc.
  • Patent number: 10376360
    Abstract: Described embodiments are directed toward centrally-opening leaflet prosthetic valve devices having two frames. A leaflet frame is coaxially disposed within a body frame. The body frame has a tubular shape defining a body frame lumen. The leaflet frame has an annular shape defining a plurality of U-shaped portions each defining a base and a plurality of posts. The leaflet frame is located coaxial with and at least substantially within the body frame lumen. A first film is coupled to the body frame and a second film is coupled to and extends across each of the U-shaped portions defining a leaflet having a free edge. At least one of the first film and second film couples the body frame to the leaflet frame. The leaflets are moveable between an open and closed position with the leaflet free edge of each of the leaflets abutting an adjacent leaflet free edge when in the closed position.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 13, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: William C. Bruchman, Cody L. Hartman
  • Patent number: 10377866
    Abstract: Fluoropolymer articles having a high surface roughness and high coarseness are provided. In one embodiment, a fiber is provided that has a surface roughness expressed as a peak-to-valley distance (Rt) greater than 10 micrometers and an average surface roughness (Ra) greater than 1.5 micrometers. In another embodiment, a membrane having a coarseness index ?/EBP of at least 0.3 g/cm3/psi and an air permeability of 15 ft3/ft2/min or higher is provided. The fluoropolymer articles are produced by a process that includes forming a paste-formed fluoropolymer product at a temperature lower than 50° C., densifying the paste-formed product, and then stretching the dens Pied paste-formed fluoropolymer product in at least one direction. In exemplary embodiments, the fluoropolymer may be polytetrafluoroethylene (PTFE), a modified PTFE, a TFE copolymer, a fluorothermoplastic, a fluoroelastomer, or combinations thereof.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 13, 2019
    Assignees: W. L. Gore & Associates, Inc., W. L. Gore & Associates GmbH
    Inventors: Michael Wendlandt, Wolfgang Bürger, John William Dolan
  • Patent number: 10368942
    Abstract: The invention generally relates to devices and methods for treating cardiac tissue, including percutaneous closure of cardiac openings such as a patent foramen ovale (PFO) and obliteration of the cardiac cul-de-sacs. The invention includes a device having at least one elongated member. The elongated member has a first material and a second material interwoven with at least a portion of the first material. The second material is capable of transferring energy to tissue in need of treatment.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Sean Forde
  • 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: 10368853
    Abstract: A medical device for sealing a defect in a body includes a wire frame that includes a plurality of wires that form a first occluding member and a second occluding member. In some embodiments, a sealing member is in contact with the wire frame. In some embodiments, the sealing member is configured to define one or more openings in the sealing member.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Tyler J. Brown, Khoa Hua, Devin M. Nelson, Keith O. Rust
  • Patent number: 10369524
    Abstract: The present invention provides an apparatus including: a filter medium having a slack state and a ballooned state and an elastic support attached to the filter medium to define a contiguous fluid flow path through the filter medium and the support. The elastic support is adapted to displace the filter medium repeatedly between the slack state and the ballooned state; the ballooned state is out-of-plane with respect to the slack state; and the slack state of the filter medium provides for areal strain greater than about 10% of the ballooned state. A method of cleaning a filter medium in a flow path of a fluid containing a suspended component is also described.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Gary P. Harp
  • Patent number: 10369292
    Abstract: A syringe for storing and delivering a fluid that includes (1) a stopper and (2) a plunger rod assembly is provided. The plunger rod assembly includes a plunger rod and a threaded member at a plunger-engaging end. The stopper may be formed of an elastomeric material. The stopper has an exterior surface and an inner cavity. The inner cavity of the stopper may have a generally frustoconical shape with at least one engagement surface. The threaded member contacts at least one engagement surface in the inner cavity of the stopper to support the plunger rod assembly in an integrated, non-threaded engagement with the stopper. In some embodiments, the threaded member is freely rotatable within the inner cavity.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Erik M. LaRose
  • Patent number: 10364527
    Abstract: A method is described for reducing the afterflame of a flammable, meltable material. A textile composite is described comprising an outer textile comprising a flammable, meltable material, and a heat reactive material comprising a polymer resin-expandable graphite mixture.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: July 30, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Dattatreya Panse, Allen B. Maples
  • Patent number: 10363040
    Abstract: Implantable medical devices for connecting tissue layers, such as for connecting a gallbladder and a portion of a gastrointestinal tract to create an anastomosis, include a tubular structure having a plurality of apposition portions, a central region, and a covering material. The devices are endoscopically deployable and may include flange members having hinge members or variable properties such as length, angle, shape, material stiffness, and wire diameter.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: July 30, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Sakthi Sambandam
  • Patent number: 10367217
    Abstract: A method of making a component of a membrane electrode assembly comprising the steps of forming an electrode on an air-permeable backer comprising ePTFE, depositing a mixture comprising ionomer and a water-insoluble alcohol onto said electrode, drying said mixture to form a protective ionomer layer, and depositing an ePTFE-reinforced ionomer layer onto said protective ionomer layer.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: July 30, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Donald T. Freese, F. Colin Busby
  • Patent number: 10357352
    Abstract: A self-expanding stent-graft provided in a diametrically compacted state for implantation and retained preferably by a constraining sheath, useful for the temporary or permanent repair of injured, partially or entirely transected body conduits including blood vessels. It may be used under direct visualization to quickly stop or substantially reduce loss of blood from such damaged vessels and to quickly re-establish perfusion distal to the injury site. The device would typically be implanted under emergency room conditions but also be used in field situations by trained medical technicians. After an end of the device is inserted into a blood vessel through the injury access, deployment preferably initiates from the device end in a direction moving toward the middle of the length of the device by directionally releasing the constraining sheath.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 23, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Edward H. Cully, Jeffrey B. Duncan, Keith M. Flury, Paul D. Goodman, Wayne D. House, Vrad W. Levering, Philip P. Off, Daniel M. O'Shea, Michael J. Vonesh, Jason M. Wiersdorf
  • Patent number: 10357385
    Abstract: A vascular graft having a sealing layer and a tapered length portion. The sealing layer provides the vascular graft with low bleed characteristics subsequent to a needle puncture such as with a dialysis needle or a suture needle. The sealing layer in the tapered length portion has varying wall thickness along the tapered length portion.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 23, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Marc A. Schlaud, Timothy T. Stringer
  • Patent number: 10357756
    Abstract: This invention provides a method of removing sulfur oxides, mercury vapor and other contaminants from a flue gas stream and a flue gas treatment device comprising a sorbent polymer composite substrate comprising a high surface area support and a durable halogen source adjacent the sorbent polymer composite substrate. The halogen source comprises a compound with a quaternary ammonium halogen salt that is not washed away.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 23, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Steve Hardwick, Xiao-Chun Lu
  • Patent number: 10343085
    Abstract: A multilayer composite in which a nonwoven filter media layer is affixed to but separated from a hydrophobic microporous membrane such that the multilayer porous composite provides effective separation of water and particulate with substantial resistance to clogging in new fuels with low interfacial tensions.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: July 9, 2019
    Assignees: W. L. Gore & Associates, Inc., W. L. Gore & Associates GmbH
    Inventors: Gary P. Harp, Marc Schroeter
  • Patent number: 10342658
    Abstract: A thin, biocompatible, high-strength, composite material is disclosed that is suitable for use in various implanted configurations. The composite material maintains flexibility in high-cycle flexural applications, making it particularly applicable to high-flex implants such as heart pacing lead or heart valve leaflet. The composite material includes at least one porous expanded fluoropolymer layer.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: July 9, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: William C. Bruchman, Paul D. Gassler, Cody L. Hartman, Peter J. Walsh
  • Patent number: 10342548
    Abstract: Disclosed are implantable medical devices for the occlusion of a bodily lumen, cavity, vessel, or organ, as well as methods for manufacturing such occlusion devices, and methods for treating a subject using the occlusion devices. The devices generally include a wire having shape memory properties and a flexible membranous material disposed about the wire. Some embodiments include a lateral fringe on the membranous material. Some embodiments include a fluid capture cup affixed to the wire.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: July 9, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Jeffrey B Duncan
  • Patent number: 10342659
    Abstract: Described embodiments are directed toward centrally-opening leaflet prosthetic valve devices having a leaflet frame and a leaflet construct. The leaflet construct is at least partially coupled to a leaflet frame outer side of the leaflet frame and being coupled thereto by a retention element.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 9, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Nathan L. Bennett
  • 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: 10330442
    Abstract: A reversible camouflage material including a textile layer having a woodland camouflage print thereon, an infrared suppressing layer, and a textile layer having a desert camouflage print thereon is provided. The infrared suppressing layer may include a polyurethane layer sandwiched between a carbon-containing ePTFE layer and an ePTFE layer. The carbon may be provided in an oleophobic layer on the ePTFE or within the ePTFE film. In one embodiment, the desert camouflage textile is absent and a coating composition that includes a colorant and infrared suppressive additives is applied to the outer surface of the ePTFE layer. The inventive camouflage material demonstrates camouflage concealment in the near IR (nIR) and short wave infrared (SWIR) wavelengths of the electromagnetic spectrum. In addition, the camouflage material is highly breathable and lightweight. The material is particularly suitable for making reversible camouflage garments such as jackets and pants.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 25, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Matthew J. Castille
  • Patent number: 10329698
    Abstract: A fishing line having (a) multiple UHMWPE fibers and (b) at least one fluoropolymer fiber comprising expanded polytetrafluoroethylene. Also, a method of making a braided fishing line comprising the steps, in order, of forming a braided fiber by braiding UHMWPE fibers with expanded polytetrafluoroethylene fibers; heating the braided fiber; stretching the braided fiber while still heated; and cooling the stretched braided fiber.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: June 25, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Norman Ernest Clough