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Rapid non-invasive blood pressure measuring device

  • US 6,632,181 B2
  • Filed: 10/05/1999
  • Issued: 10/14/2003
  • Est. Priority Date: 06/26/1996
  • Status: Expired due to Fees
First Claim
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1. A measurement device for generating an arterial pressure-indicative signal and an arterial volume-indicative signal that are used by a processor in concert with a external pressure-application device and a pressure transducer to determine the blood pressure of a patient by finding a time when the transmural pressure is approximately equal to zero, the measurement device comprising:

  • a tonometer placed sufficiently near a measurement site on a patient to detect a first signal indicative of arterial pressure of the patient; and

    a plethysmograph placed sufficiently near the measurement site to detect a second signal indicative of arterial volume of the patient.

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