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Patient monitor capable of monitoring the quality of attached probes and accessories

  • US 9,949,676 B2
  • Filed: 08/27/2012
  • Issued: 04/24/2018
  • Est. Priority Date: 10/12/2006
  • Status: Active Grant
First Claim
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1. A method which determines if a physiological sensor is an approved sensor to be used with a patient monitoring system, the method comprising:

  • communicating, using a current patient monitoring system, with a sensor memory device of a physiological sensor attached to the current patient monitoring system, the sensor memory device having at least a persistent portion with write-once capability such that information written to the persistent portion cannot be changed;

    when the physiological sensor has not previously communicated with any patient monitoring system, storing an identification of the current patient monitoring system in the persistent portion of the sensor memory device;

    when the physiological sensor has previously been connected to and communicated with a previous patient monitoring system and an identification of the previous patient monitoring system has been stored in the persistent portion of the sensor memory device;

    reading from the persistent portion of the sensor memory device the identification of the previous patient monitoring system;

    accessing a memory associated with the current patient monitoring system which stores a list of identifications of approved patient monitoring systems associated with the current patient monitoring system; and

    determining whether the physiological sensor is approved for use with the current patient monitoring system by comparing the identification of the previous patient monitoring system stored in the persistent portion of the sensor memory device and the identifications of approved monitoring systems, wherein the physiological sensor is determined to be approved if the identification of the previous patient monitoring system stored on the persistent sensor memory device is found among the list of identifications of approved patient monitoring systems; and

    receiving and using information indicative of a physiological condition from the physiological sensor only when the physiological sensor is an approved sensor.

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