Patents by Inventor Wendy A. W. Berthelsen

Wendy A. W. Berthelsen 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).

  • Screw-in drug eluting lead
    Patent number: 4953564
    Abstract: A cardiac pacing lead or other stimulation lead carrying a drug incorporated into a controlled release device. The lead is provided with an extendable fixation helix which is advanceable from the distal end of the lead in order to engage with the tissue to be stimulated and to maintain the distal end of the lead adjacent the tissue to be stimulated. The controlled release device is located within the fixation helix and is extended with the fixation helix when it is advanced out of the distal end of the lead. In its advanced position, the controlled release device is positioned adjacent the distal end of the lead, preferably in a position to contact the tissue to be stimulated.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: September 4, 1990
    Assignee: Medtronic, Inc.
    Inventor: Wendy A. W. Berthelsen