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Medical sensor and technique for using the same

  • US 8,352,009 B2
  • Filed: 01/05/2009
  • Issued: 01/08/2013
  • Est. Priority Date: 09/30/2005
  • Status: Active Grant
First Claim
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1. A patient monitoring system comprising:

  • a pulse oximetry sensor; and

    a pulse oximetry monitor coupled to the sensor, the pulse oximetry monitor being configured to;

    receive a patient signal from the pulse oximetry sensor, wherein the patient signal is related to a physiological characteristic of a patient;

    receive a pressure signal from the sensor related to a pressure between the pulse oximetry sensor and the patient;

    correlate the pressure signal to a set of reference data;

    determine a measurement of the physiological characteristic based at least in part on the patient signal;

    determine if the measurement of the physiological characteristic is associated with a signal artifact based at least in part on the pressure signal and the correlation; and

    display an indication related to the pressure signal when the signal artifact is present.

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