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System and method for mitigating interference in pulse oximetry

  • US 7,890,153 B2
  • Filed: 09/28/2006
  • Issued: 02/15/2011
  • Est. Priority Date: 09/28/2006
  • Status: Active Grant
First Claim
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1. A pulse oximetry system comprising;

  • a sensor body having, an emitter, a detector, and one or more position indicators;

    one or more position receivers separate and external from the sensor body and configured to determine the respective positions of the position indicators; and

    a processor-based monitor configured to determine changes in absolute position in space of the sensor body based on the positions determined by the one or more position receivers and to process pulse oximetry measurements from the detector using the changes in absolute position to obtain a motion-corrected pulse oximetry measurement.

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