Patents by Inventor David John Sogard

David John Sogard 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).

  • Composite tubular prostheses
    Patent number: 6945991
    Abstract: A tubular implantable prosthesis is formed of porous expanded polytetrafluoroethylene. The tubular prosthesis includes a substantially continuous ePTFE tubular first body and perimetrically non-continuous second tubular body. A circumferentially deformable support structure is interposed between the inner and outer tubular bodies. The second tubular body is formed of a plurality of elongate PTFE strips. The strips are secured to the first body and arranged longitudinally in a non-overlapping relationship. The prosthesis provides for both axial and radial compliance.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 20, 2005
    Assignee: Boston Scientific/SciMed Life Systems, Inc.
    Inventors: Christopher Brian Brodeur, Jason Peter Hill, David John Sogard, Susan M. Shoemaker
  • EPTFE covering for endovascular prostheses and method of manufacture
    Patent number: 6827737
    Abstract: An implantable composite device for regulated delivery of bioactive agents to the site of implantation includes at least two zones of distinct porosities through its cross-section. One zone is of a sufficient porosity to permit regulated transport of bioactive agents associated with the device to an area of the body in need of treatment. The bioactive agent associated with the device can be either a therapeutic or diagnostic agent. In a particular embodiment of the invention, the device includes a tubular body consisting of a first luminal layer of ePTFE having a porosity sufficient to promote cell endothelization along the luminal surface; and a second polymeric layer disposed on the first layer of a porosity permitting regulated transport of the bioactive agents.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: December 7, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Jason Peter Hill, David John Sogard, David Tseng
  • ePTFE covering for endovascular prostheses and method of manufacture
    Publication number: 20030060871
    Abstract: An implantable composite device for regulated delivery of bioactive agents to the site of implantation includes at least two zones of distinct porosities through its cross-section. One zone is of a sufficient porosity to permit regulated transport of bioactive agents associated with the device to an area of the body in need of treatment. The bioactive agent associated with the device can be either a therapeutic or diagnostic agent. In a particular embodiment of the invention, the device includes a tubular body consisting of a first luminal layer of ePTFE having a porosity sufficient to promote cell endothelization along the luminal surface; and a second polymeric layer disposed on the first layer of a porosity permitting regulated transport of the bioactive agents.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Applicant: SCIMED life Systems, Inc.
    Inventors: Jason Peter Hill, David John Sogard, David Tseng
  • Non-expanded porous polytetrafluoroethylene (PTFE) products and methods of manufacture
    Publication number: 20020111667
    Abstract: Non-expanded porous PTFE materials and products are disclosed. More particularly, grafts and stent-grafts incorporating the non-porous PTFE materials are described.
    Type: Application
    Filed: November 1, 2001
    Publication date: August 15, 2002
    Applicant: SCIMED Life Systems, Inc.
    Inventors: Timothy Samuel Girton, David John Sogard