Patents by Inventor Roy M. McCulloch

Roy M. McCulloch 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).

  • Apparatus and method for antitachycardia pacing using a virtual electrode
    Patent number: 5181511
    Abstract: An implantable device and method for treating cardiac arrhythmias in a patient's heart are disclosed. A source of antitachycardia pacing therapy and an electrode system including at least three electrodes for delivering the antitachycardia pacing therapy to the heart are provided. Circuitry and software for detecting a tachycardia having a site of focus in the heart and for determining the relative distances of the electrodes from the focus site are also provided. The three or more electrodes are connected to the source of antitachycardia pacing therapy based on the relative distances determined and in such a manner as to create a virtual electrode at the focus site upon delivery of the therapy to the heart.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: January 26, 1993
    Assignee: Telectronics Pacing Systems, Inc.
    Inventors: Peter Nickolls, Richard M. T. Lu, Kenneth A. Collins, Roy M. McCulloch, Lucy M. Cheatle, Brian Cleland