Implantable glucose sensor
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United States of America Patent
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-
Feb 14, 1984
Grant Date -
N/A
app pub date -
Oct 27, 1981
filing date -
Oct 27, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for more accurate measurements of the glucose content in body fuids by sensing the absolute level of oxygen concentration in the fluid and correcting the output differential measurement indicative of the glucose content in the fluid according to the absolute level of oxygen. In the two electrode systems known to the art, the unaltered oxygen electrode of the electrode pair may be employed to read the absolute level of oxygen concentration and in addition, function to establish the difference in oxygen concentration caused by glucose oxidation. In view of the fact that temperature may vary, a thermistor may be included in the electrode system to make temperature corrections for reason that the absolute oxygen reading from either a polarographic or galvanic oxygen electrode is extremely sensitive to temperature and the rate of glucose oxidation is temperature sensitive.
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