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Method for spectrophotometrically determining a blood oxygen parameter

  • US 10,261,010 B2
  • Filed: 12/10/2013
  • Issued: 04/16/2019
  • Est. Priority Date: 12/10/2012
  • Status: Active Grant
First Claim
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1. A near-infrared spectroscopy (NIRS) system for measuring a characteristic of a biological tissue, comprising:

  • at least one sensor assembly including a light source operable to emit light at one or more predetermined wavelengths, at least one light detector having an active area for detecting light emitted by the light source and passed through the biological tissue, and which detector is operable to produce signals representative of the detected light, and a subject contact layer disposed to cover at least one of the light source or the at least one light detector, which subject contact layer has an optically transmissive portion, the optically transmissive portion of the subject contact layer having at least one of known uniform optical attenuation characteristics or known uniform light scattering characteristics; and

    a processor adapted to use the signals produced by the detector to determine the characteristic of the tissue, and which processor is adapted to account for at least one of the known uniform optical attenuation characteristics or the known uniform light scattering characteristics in making such determination.

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