Patents Examined by Dianne Dornbucsh
  • Implantable graft to close a fistula
    Patent number: 8764791
    Abstract: An implantable graft, which may be inserted into a fistula tract to occlude the primary opening of the fistula, is provided. The graft may have a curved, generally conical shape with a trumpet-like head end that continuously tapers to a smaller tail end. The graft may be an integral unit made of a single material, such as a heterograft material. Methods of closing single and multiple fistulae are also provided.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: July 1, 2014
    Assignee: Cook Medical Technologies LLC
    Inventor: David N. Armstrong