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Device and method for noninvasive measurement of blood pressure, resistance inertance, compliance, impedance, blood flow rate, kinetic energy, flow velocity and pulse velocity of a segment in man

  • US 3,920,004 A
  • Filed: 04/03/1974
  • Issued: 11/18/1975
  • Est. Priority Date: 07/30/1973
  • Status: Expired due to Term
First Claim
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1. A device for the noninvasive measurement of blood pressure, compliance, resistance, inertance, impedance, blood flow rate, blood flow velocity, blood flow kinetic energy and pulse wave velocity parameters within a specific part of a human being comprising:

  • volume measuring means adapted to be secured to said specific part of said human being for measuring changes in the blood flow volume within said specific part of said human being and for generating a first set of signals in response to said changes in said blood flow volume;

    pressure measuring means adapted to be secured to said specific part of said human being and separated from said volume measuring means a predetermined distance for measuring changes in pressure within said specific part of said human being and for generating a second set of signals in response to said changes in said pressure;

    means for simultaneously recording said first and second set of generated signals as functions of time; and

    means for determining blood pressure, compliance, resistance, inertance, impedance, blood flow rate, flood flow velocity, blood flow kinetic energy and pulse wave velocity from said recorded first and second set of generated signals.

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