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Method and apparatus for treating hemodynamic disfunction

DC
  • US 4,928,688 A
  • Filed: 01/23/1989
  • Issued: 05/29/1990
  • Est. Priority Date: 01/23/1989
  • Status: Expired
First Claim
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1. A method for improving the hemodynamic efficiency of a sick heart comprising the steps of:

  • (a) detecting respective cardiac signals originating in the left and right ventricles of the heart;

    (b) analyzing said cardiac signals and the absence thereof in an electronic control circuit; and

    (c) providing electrical pulses from a stimulating circuit controlled by said control circuit to one, the other or both ventricles as required for effecting substantially simultaneous contraction of both ventricles, said step of analyzing including providing a control signal from said control circuit to said stimulating circuit for producing an electrical stimulating pulse to one or both ventricles in response to the absence of a detected cardiac signal from one or both ventricles within a time interval which is a small fraction of the pulse width of a detected cardiac signal.

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