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Instrument for non-invasive measurement of blood glucose

  • US 5,077,476 A
  • Filed: 08/10/1990
  • Issued: 12/31/1991
  • Est. Priority Date: 06/27/1990
  • Status: Expired due to Term
First Claim
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1. A near-infrared quantitative analysis instrument for non-invasive measurement of blood present in a body part of a subject, comprising:

  • (a) introducing means including a near infrared energy source for introducing near-infrared energy into blood present in a body part of a subject;

    (b) detecting means for detecting near-infrared energy emerging from the body part;

    (c) positioning means for positioning both the near-infrared introducing means and the detecting means closely adjacent to the body part;

    (d) processing means for processing a first electrical signal produced by the detector means into a second signal indicative of the quantity of glucose present in the blood of the subject;

    (e) a housing means for housing said introducing means, said detecting means and said processing means; and

    (f) a replaceable cartridge means engaging said housing means comprising a memory means for storing data comprising said second signal.

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