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CYANOTIC INFANT SENSOR

  • US 20110208025A1
  • Filed: 05/03/2011
  • Published: 08/25/2011
  • Est. Priority Date: 07/09/2004
  • Status: Active Grant
First Claim
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1. A pulse oximetry sensor comprising:

  • a plurality of emitters configured to transmit light having a plurality of wavelengths into a fleshy medium; and

    a detector responsive to said light after absorption by constituents of pulsatile blood flowing within said medium so as to generate a plurality of intensity signals,wherein said emitters and said detector are selected from emitters matched to detectors so that variations in a DC detector response ratio at said wavelengths can be generally attributed to variations in a mean pathlength ratio at said wavelengths.

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