Patents by Inventor Steven P. Wiesner

Steven P. Wiesner 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).

  • Catheter with intraluminal sealing element
    Patent number: 5348537
    Abstract: A sealing element for dilatation and other inflatable catheters which is formed of a polymer matrix having a bearing surface and having incorporated, at least in the portion of the matrix forming the bearing surface, a lubricous material which swells upon contact with an aqueous based liquid. The bearing surface is adapted to engage the surface of a movable member such as a guidewire when the bearing surface expands from contact with aqueous based liquid. This engagement seals the interface between the movable member and the sealing element and prevents the passage of significant amounts of liquid through the interface between these elements.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: September 20, 1994
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Steven P. Wiesner, Ketan P. Muni