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Four-chamber pacing system for optimizing cardiac output and determining heart condition

  • US 6,219,579 B1
  • Filed: 01/28/2000
  • Issued: 04/17/2001
  • Est. Priority Date: 12/15/1997
  • Status: Expired due to Fees
First Claim
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1. A system for bi-ventricular pacing, comprising;

  • RVP generating means for generating and delivering pacing pulses to the patient'"'"'s right ventricle;

    LVP generating means for generating and delivering pacing pulses to the patient'"'"'s left ventricle;

    atrial sense means for determining the cyclical time of excitation of the patient'"'"'s right and left atria;

    RAVD control means for controlling said RVP generating means to deliver pace pulses at a predetermined RAVD delay following right atrial activation;

    LAVD control means for controlling said LVP generating means to generate pace pulses at an LAVD delay following left atrial activation;

    output means for determining a measure of cardiac output from the patient'"'"'s left ventricle;

    adjusting means for adjusting said LAVD and RAVD delays and determining the optimum relationship of said LAVD and RAVD delays which results in maximized cardiac output;

    program means for programming said RAVD control means and said LAVD control means to control delivery of pacing pulses to the left and right ventricles with said optimum relation.

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