System and method of determining whether to recalibrate a blood pressure monitor

  • US 6,371,921 B1
  • Filed: 11/01/1999
  • Issued: 04/16/2002
  • Est. Priority Date: 04/15/1994
  • Status: Expired due to Fees
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First Claim
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1. A noninvasive blood pressure monitor, comprising:

  • an input calibration signal from a calibration device configured to provide an accurate representation of the blood pressure of a patient;

    an input noninvasive sensor signal from a sensor configured to detect one or more attributes of a perturbation of an artery of the patient; and

    a processor which determines when to employ the input calibration signal to recalibrate one or more of a plurality of parameters, wherein the processor uses the plurality of parameters and the input noninvasive sensor signal to continuously calculate the blood pressure of the patient, wherein the one or more parameters comprise a combination of values of a pressure-volume relationship and a trigger parameter.

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