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SENSOR, APPARATUS AND METHOD FOR NON-INVASIVELY MONITORING BLOOD CHARACTERISTICS OF A SUBJECT

  • US 20120209095A1
  • Filed: 02/15/2011
  • Published: 08/16/2012
  • Est. Priority Date: 02/15/2011
  • Status: Active Grant
First Claim
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1. A sensor for determining blood characteristics of a subject, the sensor being attachable to the subject and comprising:

  • an emitter unit configured to emit radiation through the tissue of the subject at a plurality of measurement wavelengths; and

    a detector unit comprising photo detectors that are together adapted to receive the radiation at the plurality of wavelengths and to produce in-vivo measurement signals corresponding to the plurality of measurement wavelengths, the in-vivo measurement signals being indicative of absorption caused by blood of the subject, wherein the photo detectors are mounted so that optical paths from the emitter unit to the photo detectors are different and wherein the plurality of wavelengths are divided between the photo detectors so that two spectrally adjacent photo detectors have at least one common wavelength.

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