Blood glucose monitoring system

Details Blood glucose monitoring system Blood glucose monitoring system

1998-04-16

2000-08-29

Bell, Janyce

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Analysis, diagnosis, measuring, or testing product

427162, 427256, 427287, 427164, B05D 300, B05D 506

Patent

active

061105228

ABSTRACT:
A blood glucose monitoring system includes a broadband light source and a specially fabricated optical filter for modulating optical radiation to be transmitted through a fleshy medium. Optical radiation which passes through the fleshy medium is detected by an optical detector which generates an electrical signal indicative of the intensity of the detected light. Digital signal processing is performed on the electrical signal to extract those optical characteristics of the electrical signal due to the optical characteristics of the filter and constituents of the fleshy May 1, 1995 medium other than blood glucose concentration. The monitoring system employs a unique "double-log" transformation to minimize errors due to indeterminate path length variations of the optical radiation through the fleshy medium. The monitoring system further employs specialized signal processing to avoid inaccuracies due to the previously unidentified solvent effect which arises when glucose is dissolved into water.

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