Patents by Inventor Fred I. Vance

Fred I. Vance 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).

  • Heart rejection monitoring apparatus and method
    Patent number: 5139028
    Abstract: An implantable cardiac allograft rejection monitoring apparatus and method for measuring stimulated intracardiac electrogram potentials, performing processing and time based analysis of changes in the potential, and deriving from the time history of the analyzed signals allograft rejection control parameters. The apparatus communicates the allograft rejection control parameters to an external communicating device and may use the parameters to control the output of an implanted drug infusion pump.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: August 18, 1992
    Assignee: Telectronics Pacing Systems, Inc.
    Inventors: Bruce M. Steinhaus, Fred I. Vance, Anne Curtis, Ken Koestner