Measuring instrument for contu00ecnua noninvasive monitoring of glucose concentration in arterial blood

摘要

Measuring instrument for contu00ecnua noninvasive monitoring of glucose concentration in arterial blood.Patent of invention belonging to the field of measurement for diagnosis, understood by the instrument (1) consisting mainly of light emitting LED (2), a photodetector (3), a noninvasive optical sensor (4) and the electronic circuit (5) capable to excite the optical components of the if Nsor, read analog signals from the sensor.To estimate the value of glucose concentration and clearly display the value of this measure, or send it by any means known this information to a device capable of receiving it, submit it and possibly to store it, thus allowing monitoring of the evolution of the CA Bind.In the invention, which presents a margin of error of less than 10% are preferably two wavelengths fixed (805 and 1350 nm) across the fabric, and the measurement of glucose concentration is made exclusively in the arterial blood - identified by their characteristic pulsatile By means of analysis of the DC and AC of the light absorbed by living tissue separately.And the alternating component usually does not exceed 1% to 2% of the absorbance in the wavelength of 805 nm, and 0.05 to 0.5% at the wavelength of 1350 nm.