Method and apparatus for providing dynamic multi-stage amplification in a medical device

  • US 8,427,298 B2
  • Filed: 04/02/2012
  • Issued: 04/23/2013
  • Est. Priority Date: 04/14/2007
  • Status: Active Grant
First Claim
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1. A method of processing signals from a glucose sensor, comprising:

  • coupling a first amplifier that includes an output terminal that provides a first output signal, to a signal source;

    coupling a second amplifier that includes an output terminal that provides a second output signal, to the output terminal of the first amplifier, wherein the first output signal is a predetermined ratio of the second output signal, and the first output signal and the second output signal are associated with an in vivo monitored glucose level;

    operatively coupling an analog to digital (ND) converter to the output terminal of the second amplifier;

    comparing signals at the second amplifier output terminal to a predetermined threshold value; and

    processing a signal associated with the signals at the second amplifier output terminal when another signal at the second amplifier output terminal exceeds the predetermined threshold value.

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