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MULTI-STREAM SENSOR FOR NONINVASIVE MEASUREMENT OF BLOOD CONSTITUENTS

  • US 20100026995A1
  • Filed: 08/03/2009
  • Published: 02/04/2010
  • Est. Priority Date: 08/04/2008
  • Status: Active Grant
First Claim
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1. A physiological, noninvasive detector configured to detect optical radiation from a tissue site, said detector comprising:

  • a set of photodetectors that each provide a signal stream indicating optical radiation from the tissue site, wherein the set of photodetectors are arranged in a spatial configuration that provides a variation in path lengths between at least some of the photodetectors; and

    a conversion processor that provides information indicating an analyte in the tissue site based on ratios of pairs of the signal streams.

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