Patents by Inventor Richard Zdrahala

Richard Zdrahala 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: 20070244539
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Application
    Filed: June 7, 2007
    Publication date: October 18, 2007
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Patent number: 7244271
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: July 17, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Publication number: 20050043808
    Abstract: A method, and related composition and apparatus for repairing a tissue site. The method involves the use of a curable polyurethane biomaterial composition having a plurality of parts adapted to be mixed at the time of use in order to provide a flowable composition and to initiate cure. The flowable composition can be delivered using minimally invasive means to a tissue site and there fully cured provide a permanent and biocompatible prosthesis for repair of the tissue site. Further provided are a mold apparatus, e.g., in the form of a balloon or tubular cavity, for receiving a biomaterial composition, and a method for delivering and filling the mold apparatus with a curable composition in situ to provide a prosthesis for tissue repair.
    Type: Application
    Filed: September 7, 2004
    Publication date: February 24, 2005
    Inventors: Jeffrey Felt, Mark Rydell, Richard Zdrahala, Alexander Arsenyev
  • Publication number: 20040193242
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Application
    Filed: April 9, 2004
    Publication date: September 30, 2004
    Applicant: Scimed Life Systems, Inc.
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Patent number: 6719783
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 13, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Publication number: 20030004559
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Application
    Filed: August 5, 2002
    Publication date: January 2, 2003
    Applicant: Scimed Life Systems, Inc.
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Patent number: 6428571
    Abstract: An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: August 6, 2002
    Assignee: Scimed Life Systems, Inc.
    Inventors: David Lentz, Jamie Henderson, Edward Dormier, Richard Zdrahala, Gary Loomis, Ronald Rakos, Krzysztof Sowinski
  • Patent number: 5587412
    Abstract: According to the present invention there is provided a composition as obtained from a melt comprising esterified starch, preferably having an amylose content of at least about 50% by weight with respect to that of the starch, and being substituted to a degree of at least about 1.5, preferably from about 1.8 to about 2.9. The starch ester may be of the kind obtained by reaction of a mixed acid anhydride with starch.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: December 24, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Gerd Borchers, Ingo Dake, Albrecht Dinkelaker, Jean-Pierre Sachetto, Richard Zdrahala, Stephen Rimsa, Gary Loomis, Paul Tatarka, Olivier Mauzac