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Heart rejection monitoring apparatus and method

  • US 5,139,028 A
  • Filed: 10/26/1990
  • Issued: 08/18/1992
  • Est. Priority Date: 10/26/1990
  • Status: Expired due to Term
First Claim
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1. A cardiac allograft rejection monitor adapted to be implanted in a patient, comprising:

  • means for generating cardiac stimulation pulses,means for sensing a stimulated cardiac depolarization signal in response to the generation of a cardiac stimulation pulse,means for periodically ascertaining the value of a measured allograft rejection control parameter which is based on an analysis of the sensed stimulated cardiac depolarization signal,means for detecting changes in the measured allograft rejection control parameter over time which are indicative of the occurrence of allograft rejection, andmeans for storing information indicative of the occurrence of allograft rejection and for communicating said information to an external device.

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