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Implantable medical device system with sensor for hemodynamic stability and method of use

  • US 20030014083A1
  • Filed: 04/27/2001
  • Published: 01/16/2003
  • Est. Priority Date: 04/27/2001
  • Status: Active Grant
First Claim
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1. An implantable medical device system for regulating a heart of a patient, the system comprising:

  • a first sensor capable of sensing activity of a heart atrium;

    a second sensor capable of sensing activity of a heart ventricle;

    a processor coupled to the first and second sensors, the processor capable of;

    determining an atrial cycle time and a ventricular cycle time based upon signals from the first and second sensors, generating a hemodynamic baseline ratio based upon an atrial cycle time and a ventricular cycle time of a hemodynamic heartbeat, generating an active ratio based upon an atrial cycle time and a ventricular cycle time of an active heart beat, comparing the hemodynamic baseline ratio and the active ratio, determining a corrective action based upon the comparison of the hemodynamic baseline ratio and the active ratio; and

    a medical device capable of delivering a therapy to the patient and coupled to the processor;

    wherein the processor is configured to prompt desired activation of the medical device based upon the determined corrective action.

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