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Blood pressure monitor system

  • US 5,261,414 A
  • Filed: 06/19/1992
  • Issued: 11/16/1993
  • Est. Priority Date: 06/28/1991
  • Status: Expired due to Fees
First Claim
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1. A blood pressure monitor system for monitoring blood pressure of a living subject, comprising:

  • pulse wave detecting means for detecting a series of pulses of a first pulse wave produced from an artery of said subject via a body surface of the subject over said artery;

    an inflatable cuff for pressing a body portion of said subject;

    blood pressure measuring means for measuring a systolic and a mean blood pressure of said subject based on variation in amplitude of a series of pulses of a second pulse wave which is produced from the pressed body portion of said subject and is propagated to said inflatable cuff by changing a pressure in said cuff; and

    blood pressure determining means for determining a relationship between blood pressure and pulse wave magnitude, based on the systolic and mean blood pressure values measured by said blood pressure measuring means and an upper-peak magnitude and a mean magnitude of at least one of said pulses of said first pulse wave detected by said pulse wave detecting means, and continuously determining, according to said relationship, blood pressure values of said subject based on magnitudes of said first pulse wave detected by said pulse wave detecting means.

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