Patents by Inventor Richard P. Geoffrion

Richard P. Geoffrion 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).

  • Intravascular radiation therapy device, and method of use
    Publication number: 20020032359
    Abstract: A radiation delivering catheter is positioned away from the walls of the vessel to be treated, e.g. at a stenosis site, so that the radiation flux impacting the walls is more uniform. In one embodiment, one or more balloons are used, and in another, one or more expandable structures. In other embodiments, a radiation source residing within a balloon is shielded from the vessel walls when the balloon is not inflated, but exposes the vessel walls to radiation when the balloon is inflated.
    Type: Application
    Filed: August 24, 2001
    Publication date: March 14, 2002
    Inventors: Richard P. Geoffrion, Gholam Reza Zadno-Azizi, Samuel L. Omaleki
  • Intravascular radiation therapy device and method of use
    Patent number: 6338709
    Abstract: A radiation delivering catheter is positioned away from the walls of the vessel to be treated, e.g. at a stenosis site, so that the radiation flux impacting the walls is more uniform. In one embodiment, one or more balloons are used, and in another, one or more expandable structures. In other embodiments, a radiation source residing within a balloon is shielded from the vessel walls when the balloon is not inflated, but exposes the vessel walls to radiation when the balloon is inflated.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: January 15, 2002
    Assignee: Medtronic PercuSurge, Inc.
    Inventors: Richard P. Geoffrion, Gholam Reza Zadno-Azizi, Samuel L. Omaleki