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Device and method for monitoring of absolute oxygen saturation and tissue hemoglobin concentration

  • US 8,666,466 B2
  • Filed: 06/10/2010
  • Issued: 03/04/2014
  • Est. Priority Date: 06/10/2009
  • Status: Active Grant
First Claim
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1. A method of detecting signals in a medical device, comprising:

  • detecting emitted light scattered by a volume of tissue delivered along a first pathway and a second pathway different from the first pathway;

    detecting emitted light scattered by a volume of tissue delivered along a third pathway and a fourth pathway different from the third pathway;

    determining a first uniformity corresponding to the emitted light detected along the first pathway and the second pathway;

    determining a second uniformity corresponding to the emitted light detected along third pathway and the fourth pathway;

    determining a total uniformity in response to the determined first uniformity and the determined second uniformity; and

    altering sensing by the device in response to the determined total uniformity.

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