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Sensor isolation

  • US 7,734,320 B2
  • Filed: 08/20/2007
  • Issued: 06/08/2010
  • Est. Priority Date: 12/09/1999
  • Status: Expired due to Fees
First Claim
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1. A noninvasive physiological sensor including a light source configured to emit light toward patient tissue and a detector configured to detect light attenuated by said patient tissue, said sensor comprising:

  • emitter conductors configured to communicate emitter driver signals from a patient monitor to said light source;

    detector conductors configured to communicate an output signal responsive to said detected light; and

    an isolator configured to isolate said patient tissue from potentially harmful electrical events, the isolator comprising;

    a sensor memory configured to store information;

    a sensor processor configured to access said information in said sensor memory; and

    a transceiver connected to the emitter conductors and configured to provide bi-directional communication between said sensor memory, sensor processor and said patient monitor, said communication occurring over said emitter conductors.

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