Non-invasive blood glucose meter

Details Non-invasive blood glucose meter Non-invasive blood glucose meter

1997-10-27

2000-03-28

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

G01N 3349, G01N 2135

Patent

active

060434929

ABSTRACT:
A non-invasive blood glucose meter includes a near-infrared energy analyzer which includes a light filter assembly of two Fabry-Perot interferometers and a photosensor. The near-infrared energy analyzer detects near-infrared energy absorbed by a human or animal body and generates spectra of such absorption so that the blood glucose content in the body may be analyzed. In order to provide stable energy absorption information of the blood, special designs are provided to stabilize the light source, to calibrate the spectrum and to obviate the noise from the heartbeats of the body. A single crystal silicon elastic power source is used to provide the driving power of the Fabry-Perot interferometer to avoid mechanical hysteresis.

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patent: 5460177 (1995-10-01), Purdy et al.
patent: 5550373 (1996-08-01), Cole et al.

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