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Multiple wavelength sensor emitters

  • US 7,764,982 B2
  • Filed: 03/01/2006
  • Issued: 07/27/2010
  • Est. Priority Date: 03/01/2005
  • Status: Active Grant
First Claim
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1. A physiological sensor configured to measure an indication of a physiological characteristic of a living patient, the physiological sensor comprising:

  • a plurality of light emitting sources arranged to impinge light on body tissue of a living patient, each light emitting source activated by addressing at least one of a plurality of rows and at least one of a plurality of columns of an electrical grid, the light emitting sources capable of transmitting light of a plurality of wavelengths, wherein there are fewer light emitting sources than intersections of the rows and columns;

    a detector responsive to the transmitted light after attenuation by body tissue of the living patient, the body tissue including pulsating blood, wherein the detector is configured to generate a signal indicative of a physiological characteristic of the living patient; and

    a sensor housing configured to position the plurality of light emitting sources and the detector with respect to the body tissue of the living patient.

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