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Active left-right flow control in a two chamber cardiac prosthesis

  • US 6,527,698 B1
  • Filed: 10/12/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 05/30/2000
  • Status: Expired due to Term
First Claim
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1. A method for controlling a biventricular cardiac prosthesis having left and right pumping sections to maintain a patient'"'"'s left atrial pressure within physiologic bounds, comprising the steps of:

  • measuring the patient'"'"'s left atrial pressure;

    determining whether the patient'"'"'s left atrial pressure is outside of a tolerance around a desired left atrial pressure;

    adjusting the flow of the right pumping section to bring the patient'"'"'s left atrial pressure within the tolerance wherein when the left atrial pressure is higher than the tolerance, right side flow is decreased, and when the left atrial pressure is lower than the tolerance, right side flow is increased.

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