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Adaptive calibration pulsed oximetry method and device

  • US 6,760,609 B2
  • Filed: 07/15/2002
  • Issued: 07/06/2004
  • Est. Priority Date: 07/14/1999
  • Status: Expired due to Fees
First Claim
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1. A method of calibrating an oximeter and determining an arterial blood oxygen saturation level in tissue, comprising:

  • using a plurality of measurements to determine properties of a light transmission passing through or reflected from a tissue; and

    using the properties of the light transmission or reflection to select a calibration curve, said calibration curve representing a level of arterial blood oxygen saturation in relation to a pulsatile factor;

    wherein the plurality of measurements is obtained by varying a position of a light source or a light detector relative to the tissue to detect light passed through or reflected from different portions of the tissue.

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