Non-invasive glucose measuring device and method for measuring b

Details Non-invasive glucose measuring device and method for measuring b Non-invasive glucose measuring device and method for measuring b

1997-02-20

1999-06-08

Getzow, Scott M.

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

A61B 500

Patent

active

059101091

ABSTRACT:
A glucose measuring device for determining the concentration of glucose in intravascular blood within a body part of a subject. The device includes light sources having a wavelength of 650, 880, 940 or 1300 nm to illuminate the fluid. Receptors associated with the light sources for receiving light and generating a transmission signal representing the light transmitted are also provided. A support piece is including for supporting the light sources associated with their respective light sources. The support piece is adapted to engage a body part of a subject. Finally, a signal analyzer, which includes a trained neural network, determines the glucose concentration in the blood of the subject. A method for determining the glucose concentration is also provided which calibrates a measuring device and sets the operating current for illuminating the light sources during operation of the device. Once a transmission signal is generated by receptors receiving light via the light sources and illuminated blood, and the high and low values from each of the signals are stored in the device, and averaged to obtain a single transmission value for each of the light sources. The averaged values are then analyzed to determine the glucose concentration, which value is displayed on the device.

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