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Method of improving reproducibility of non-invasive measurements

  • US 6,411,832 B1
  • Filed: 12/16/1999
  • Issued: 06/25/2002
  • Est. Priority Date: 07/15/1992
  • Status: Expired due to Fees
First Claim
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1. A method for minimizing variations in non-invasive measurements of concentration of a constituent of interest within a body part of a patient, said method comprising the steps of:

  • elevating said body part such that it remains at least 6 inches above the heart of the patient during the measurement cycle;

    illuminating said body part with optical radiation;

    measuring radiation transmitted, reflected or transflected from said body part;

    calculating the concentration of said constituent of interest within said body part of said patient from the measured value of radiation.

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