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BLOOD PRESSURE MONITOR WITH RATE SENSING ARTIFACT REJECTION PROCESSING CIRCUITRY

  • US 3,791,378 A
  • Filed: 04/01/1971
  • Issued: 02/12/1974
  • Est. Priority Date: 04/01/1971
  • Status: Expired due to Term
First Claim
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1. In an indirect blood pressure measuring apparatus having means for externally occluding an artery with pressure and varying said pressure with known pressure valUes allowing the artery to open and close, transducer means responsive to the interaction of blood pressure and cuff pressure to develop electrical input pulse signals, and processing means coupled with said pressure means for automatically responding to a selected one of said pulse signals to provide a blood pressure measurement, the improvement comprising:

  • detector means coupled between said transducer means and processing means for establishing a predetermined maximum pulse rate to selectively pass a first one of two successive input pulses provided the second pulse occurs selectively to a predetermined minimum period defined by said pulse rate.

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