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Oximeter sensor with perfusion enhancing

  • US 5,392,777 A
  • Filed: 12/01/1993
  • Issued: 02/28/1995
  • Est. Priority Date: 06/28/1991
  • Status: Expired due to Term
First Claim
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1. A method for optically measuring a characteristic of a patient'"'"'s blood comprising the following steps:

  • applying to a predetermined location on the patient'"'"'s skin a blood perfused tissue altering substance without the use of iontophoresis;

    placing a sensor on the predetermined location of the patient'"'"'s skin, the sensor comprising a light source and a photodetector;

    transmitting light from the light source into the patient'"'"'s skin at the predetermined location;

    detecting light with the photodetector at the predetermined location; and

    measuring a characteristic of the patient'"'"'s blood based on the detected light.

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