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Method of inhibiting cardiac arrhythmias

  • US 4,554,922 A
  • Filed: 09/30/1982
  • Issued: 11/26/1985
  • Est. Priority Date: 09/30/1982
  • Status: Expired due to Term
First Claim
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1. In a method of pacing a heart, which includes the step of applying electrical stimuli to the heart to propagate rhythmic responses, the improvement comprising the steps of determining a characteristic refractory time period between a patient'"'"'s rhythmic responses within which an electrical stimulus can be applied to the patient'"'"'s heart without propagating a heart response, sensing each rhythmic heart response, determining a time within the refractory time period after each sensed rhythmic heart response for the application of an electrical stimulus to the heart, after each rhythmic heart response, generating a conditioning electrical stimulus having an amplitude which is a function of the determined time so that it will not propagate a heart response, and applying the conditioning electrical stimulus to the patient'"'"'s heart at the determined time during the refractory time period after the sensed rhythmic heart response to inhibit a subsequent spontaneous arrhythmic response before the next rhythmic heart response.

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