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Methods and systems for detecting the hydration of sensors

  • US 9,360,447 B2
  • Filed: 08/12/2013
  • Issued: 06/07/2016
  • Est. Priority Date: 12/30/2005
  • Status: Active Grant
First Claim
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1. A sensor system, comprising:

  • a sensor configured to provide a sensor signal indicative of a physiological characteristic of a patient, the sensor including a plurality of electrodes that are configured to be implanted or disposed subcutaneously within the patient'"'"'s body so as to be in continuous contact with the patient'"'"'s bodily fluids; and

    a sensor electronics device that is coupled to the sensor and includes;

    an electrical detection circuit that determines whether the plurality of electrodes in the sensor are hydrated and, only after said plurality of electrodes are hydrated, generates an interrupt; and

    a microcontroller that receives the interrupt from the electrical detection circuit and transmits a signal representative of a voltage to the sensor, wherein an electrode of the plurality of electrodes receives the voltage derived from the transmitted signal.

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