Patents by Inventor William J. Worchen

William J. Worchen 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).

  • Indwelling heat exchange catheter and method of using same
    Patent number: 8105264
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: January 31, 2012
    Assignees: Zoll Circulation, Inc., The Regents of the University of Califonia
    Inventors: Wayne A. Noda, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worchen, Yves Pierre Gobin
  • INDWELLING HEAT EXCHANGE CATHETER AND METHOD OF USING SAME
    Publication number: 20110130812
    Abstract: A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include hollow fibers which are adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. The hollow fibers enhance the surface area of contact, as well as the mixing of both the heat exchange fluid and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body or alternatively positioned to systemically cool the entire body system.
    Type: Application
    Filed: February 4, 2011
    Publication date: June 2, 2011
    Inventors: WAYNE A. NODA, Mike L. Jones, Scott M. Evans, Blair D. Walker, William J. Worchen, Yves Pierre Gobin