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Blood flow meter apparatus and method of use

  • US 5,865,749 A
  • Filed: 11/07/1996
  • Issued: 02/02/1999
  • Est. Priority Date: 11/07/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for repeatedly estimating blood flow in a vessel over a period of time, the apparatus comprising:

  • one or more transducers;

    a source of electrical excitation signal that is applied to at least one of the one or more transducers for an active period of a control signal sufficient to obtain a blood flow estimate and is removed from the at least one of the one or more transducers for an idle period of the control signal until a subsequent blood flow estimate is to be obtained.

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