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Method and means for measuring cardiac pumping performance of left ventricle

  • US 4,137,910 A
  • Filed: 09/30/1976
  • Issued: 02/06/1979
  • Est. Priority Date: 09/30/1976
  • Status: Expired due to Term
First Claim
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1. A system for measuring and monitoring the pumping performance of left ventricular contraction during systole of a patient'"'"'s heart, comprising:

  • pressure responsive means for deriving aortic pressure signals from a patient'"'"'s body which are caused by the ejection of said left ventricle;

    differentiator means in circuit with said pressure responsive means for differentiating said pressure pulse signals; and

    amplifier means in circuit with said differentiator means for amplifying said differentiated pressure pulse signals to obtain data indicative of the blood flow from said patient'"'"'s left ventricle during systole; and

    display means connected to said amplifier means for indicating said pumping performance of left ventricle contraction.

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