Abstract: Waterproof, breathable garments and methods of making are provided. The garments may include a laminate of a seamless ePTFE membrane and at least one textile. The garment is conformable over a range of sizes, and may be shaped to fit numerous sizes and shapes of forming molds. The ePTFE membrane may shrink to fit, or, alternatively, be stretched to fit, a mold having a desired size to form a garment. Such a conformable ePTFE membrane may allow for forming multiple sizes of garments with various sizes and shapes of molds. In embodiments where the ePTFE membrane is seamless and continuous, the garment eliminates the need for a waterproof seam tape, which is conventionally used to make garments waterproof.
Type:
Grant
Filed:
August 19, 2016
Date of Patent:
June 11, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
John E. Bacino, Norman E. Clough, Orlando Collazo, Jean Norvell, Franz Shelley
Abstract: An energy-efficient, wide-band, and compact wireless sensor reader remotely interrogates an implanted wireless inductive-capacitive (LC) sensor in order to measure a physiologic parameter of interest within a human body. The wireless sensor reader generates an instantaneous, spike-shaped, high-amplitude, low-energy pulse to excite the wireless LC sensor, causing it to emit a ring-down signal. The wireless sensor reader subsequently receives, amplifies, and filters the ring-down signal. Next, the wireless sensor reader digitizes the ring-down signal and transfers the digitized ring-down signal to a processing unit. The processing unit computes a Fast Fourier Transform (FFT) of the digitized ring-down signal and then locates the resonant frequency of the LC sensor using a threshold peak detection technique.
Abstract: An improved medical device reduces the loss of longitudinal length during expansion of a stent-graft from a compressed state to an expanded state. For example, the stent-graft is placed over a cover that provides resistance to expansion of the balloon during inflation, which reduces longitudinal compressing forces exerted on the stent-graft.
Type:
Grant
Filed:
November 24, 2015
Date of Patent:
May 28, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Jane K. Bohn, Cody L. Hartman, Deenu G. Kanjickal, Bret J. Kilgrow, Joseph B. Koenig, James J. Nickerson, Thomas G. Triebes
Abstract: Protective garments and methods for low wet pick-up from hose water, weather, etc. and from perspiration generated by the wearer, to minimize water impact on the insulative properties, minimize weight gain, and effectuate quick drying. For firefighting in particular, the disclosure provides that wet, hot air is driven out of the garment, away from the wearer (rather than in), and water entry is blocked.
Type:
Grant
Filed:
March 13, 2014
Date of Patent:
May 14, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Allen Maples, Matthew Decker, Mukesh Jain, William Gorak
Abstract: Described embodiments are directed toward centrally-opening, leaflet valve devices and systems for transcatheter delivery having a two-piece valve body as well as methods of making and delivering the two-piece valve devices. A transcatheter valve includes a collapsed configuration and an expanded configuration. The transcatheter valve can further include an everted configuration and a non-everted configuration.
Abstract: A balloon or balloon cover comprising a composite material having a least one expanded fluoropolymer material and an elastomer is provided. The expanded fluoropolymer material can contain serpentine fibrils. In exemplary embodiments, the fluoropolymer is polytetrafluoroethylene. The composite material may be axially, helically, and/or circumferentially wrapped to form a balloon or balloon cover. The balloon or balloon cover exhibits a sharp increase in stiffness at a predetermined diameter. The balloon or balloon cover can be designed to have a stop point in either a radial or axial direction.
Type:
Grant
Filed:
December 18, 2013
Date of Patent:
May 7, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
James L. Goepfrich, Joshua C. Haarer, Brandon C. Hedberg, Benjamin M. Trapp
Abstract: This disclosure is directed to an aperture occlusion device and a method for occluding an aperture, including a perimembranous ventricular septal defect. The aperture occlusion device includes a wire frame element. The wire frame forms geometric shapes that include an occluder region and a securing region. The occluder region and the securing region are separated by an attachment region including a waist. The occluder region and securing region can include membranous coverings. The device can be attached to a delivery hub. The wires forming the occluder region and securing region can have a shape-memory capability such that they can be collapsed and distorted in a sheath during delivery, but resume and maintain their intended shape after delivery.
Type:
Grant
Filed:
October 20, 2016
Date of Patent:
May 7, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Zahid Amin, Edward H. Cully, Warren Cutright, Coby C. Larsen, Steven J. Masters, Edward E. Shaw
Abstract: A diametrically adjustable endoprosthesis includes a controlled expansion element extending along at least a portion of a graft and is supported by a stent. The controlled expansion element diametrically constrains and limits expansion of the endoprosthesis. Upon deployment from a smaller, delivery configuration, the endoprosthesis can expand to the initial diameter set by the controlled expansion element. Thereafter, the endoprosthesis can be further diametrically expanded (e.g., using balloon dilation) by mechanically altering the controlled expansion element.
Type:
Application
Filed:
April 21, 2016
Publication date:
May 2, 2019
Applicant:
W. L. Gore & Associates, Inc.
Inventors:
Edward H. Cully, Jeffrey B. Duncan, Marisa L. Sylvester, Daniel W. Yates, Michael J. Vonesh
Abstract: VDF-co-(TFE or TrFE) polymers having a molecular weight of at least about 1,000,000 g/mol and a melt temperature less than about 240° C. The VDF copolymer contains at least about 50 mol % VDF monomer and may include an amount of at least one other monomer. The VDF copolymer may be used to form a membrane that has a node and fibril structure. The membrane has a percent porosity of at least 25%. A VDF-co-(TFE or TrFE) polymer membrane may be formed by lubricating the VDF copolymer, subjecting the lubricated polymer to pressure at a temperature below the melting point of the VDF copolymer to form a preform material, and expanding the preform material at a temperature below the melting temperature of the VDF copolymer. Dense VDF copolymer articles, filled VDF copolymer membranes, and VDF copolymer fibers are also provided.
Abstract: Exemplary embodiments comprise AV fistulas and other anastomotic devices for creating new or reinforcing existing side-branch vessels, and/or bridging neighboring vessels together. An exemplary embodiment may comprise a sidewall port, such as a flanged sidewall port, and/or flow frame design, such as a partially bare, flexible stent or a whisk, for purposes of creating a transmural flow. Another exemplary embodiment may comprise a compliant vessel support to aid in the transition from device to vessel and/or vessel to device, and to promote vessel dilation.
Type:
Grant
Filed:
September 16, 2016
Date of Patent:
April 2, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Edward H. Cully, Jeffrey B. Duncan, Karan B. Sangha
Abstract: A sensor includes two coaxial RF shielding members arranged to create a coaxial RF shielding structure that is electrically open and is formed from partially enclosed cylindrical shells. The RF shielding members are spaced from one another. The sensor also includes one or multiple electrically conductive coaxial coils between the coaxial RF shielding members. This configuration creates an LC circuit without requiring a separate capacitor electrically connected to the inductor. The RF shielding structure minimizes the surrounding tissue effects (e.g., parasitic capacitance), which improves the overall accuracy of the sensor. The LC circuit also can be remotely interrogated by external reader.
Abstract: Systems and methods for detecting syringe seal defects are described, including associated syringe stopper designs having seal areas and indicating areas, as well as associated inspection systems and methods for optical imaging and analysis for syringe seal defects in dry and wet syringes.
Abstract: Tissue anchoring devices in the form of microanchors that partially penetrate tissue, thereby avoiding full thickness penetration of the tissue, yet are secure enough to enable reliable device fixation and easy removal of the device while maintaining normal GI tract functions.
Type:
Grant
Filed:
August 7, 2013
Date of Patent:
March 12, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Clifford P. Warner, Sherif A. Eskaros, Kenneth Mazich
Abstract: The present disclosure describes systems for endoluminal devices utilizing a sleeve for constraining an expandable device toward a constrained configuration suitable for endoluminal delivery to a treatment site along vasculature; and a mechanism for retracting at least a portion of the sleeve.
Type:
Grant
Filed:
July 8, 2016
Date of Patent:
March 5, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Patrick M. Norris, Matthew G. Sondreaal
Abstract: Controlled deployable medical devices that are retained inside a body passage and in one particular application to vascular devices used in repairing arterial dilations, e.g., aneurysms. Such devices can be adjusted during deployment, thereby allowing at least one of a longitudinal or radial re-positioning, resulting in precise alignment of the device to an implant target site.
Type:
Grant
Filed:
March 13, 2014
Date of Patent:
March 5, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Edward H. Cully, Keith M. Flury, Michelle L. Gendron, Stanislaw L. Zukowski
Abstract: This disclosure is related to devices and related methods for isolating a treatment region in a human body from fluid pressure. In various embodiments, an implantable device for isolating a treatment region in a human body from fluid pressure comprises a first elongated segment, and a second elongated segment, and one or more branch segments in fluid communication with one of the first elongated segment and the second elongated segment. The elongated segments have a combined cross section that is substantially conformable to an intraluminal cross section of a body lumen into which they are implanted. A method of installing an implantable medical device into the body of a patient comprises deploying a first elongated segment, deploying a second elongated segment, and deploying one or more branch segments in a target region of a vasculature.
Abstract: The present disclosure comprises devices, systems, and methods having an inverted sheath configured to cover, and in some instances constrain, a medical device and to retract through eversion, thus enabling the deployment of medical device at the treatment site. A constraining sheath can evert hydraulically. A constraining sheath can be configured to neck down a medical device to achieve a lower delivery profile. Furthermore, a constraining sheath can comprise a balloon to expand or positionally or structurally adjust a medical device.
Type:
Grant
Filed:
August 9, 2012
Date of Patent:
February 26, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Edward H. Cully, Craig W. Irwin, James D. Silverman
Abstract: A substrate comprising a microporous microstructure, an interlayer over at least a portion of the microstructure and a functional layer attached to the interlayer, the functional layer having functional sites with a density of at least 50 nanomoles/cm2.
Type:
Grant
Filed:
March 1, 2011
Date of Patent:
February 19, 2019
Assignee:
W.L. Gore & Associates, Inc.
Inventors:
Anit Dutta, Heidi Flannery, William P. Mortimer, Jr.
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, a tip, and an end cap. The tip and end cap can be integral to each other. The covering member can extend beyond the distal end of the endoprosthesis and onto the end cap. The end cap can comprise a tapered profile, which may assist in retraction of the catheter tip and end cap into an outer sheath. The end cap can further comprise one or more fins.
Type:
Grant
Filed:
August 13, 2015
Date of Patent:
February 5, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Bret J. Kilgrow, Larry J. Kovach, Brandon C. Short, Anna F. Timbie
Abstract: The present disclosure is directed to a branched endoprosthesis comprising a graft component and at least one support component. In various embodiments, the branched endoprosthesis comprises a body portion and a plurality of leg portions, wherein the legs are in an aligned configuration for ease of cannulation. In various embodiments, at least one leg is in an open configuration for ease of cannulation. Cannulation methods are also taught.
Type:
Grant
Filed:
June 26, 2017
Date of Patent:
February 5, 2019
Assignee:
W. L. Gore & Associates, Inc.
Inventors:
Kyle R. Buckley, Benjamin I. Espen, Douglas C. Helsel, Stanislaw L. Zukowski