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System and method for monitoring the life of a physiological sensor

  • US 8,922,382 B2
  • Filed: 01/27/2011
  • Issued: 12/30/2014
  • Est. Priority Date: 10/12/2006
  • Status: Active Grant
First Claim
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1. A reusable noninvasive physiological sensor configured to store sensor use information, the sensor comprising:

  • a first and second emitter configured to emit light of at least two wavelengths through tissue;

    a detector configured to sense the light after it has passed through the tissue and to generate a signal indicative of the sensed light;

    a memory device configured to store at least one indication of sensor use information and a plurality of sensor life functions for use in determining a useful life of the sensor by a separately housed patient monitor, wherein the plurality of sensor life functions indicate to the separately housed patient monitor how to calculate the useful life of the sensor and identify one or more indications of sensor use information to use to calculate the useful life of the sensor; and

    a communication port configured to communicate the signal, the at least one indication of sensor use information and at least one of the plurality of sensor life functions to the separately housed patient monitor, wherein the separately housed patient monitor calculates the useful life of the sensor using the at least one indication of sensor use information and the at least one of the plurality of sensor life functions received from the sensor.

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