Blood sugar analyzer having fixed enzyme membrane sensor

Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing

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204403, 204415, 364415, 364416, 422 81, 435 14, 435291, 435817, 436 95, 436150, G01N 3366

Patent

active

044205643

ABSTRACT:
A blood sugar analyzing apparatus has a reaction cell which houses a fixed enzyme membrane sensor and a measuring electrode which receives a blood specimen which causes a chemical reaction between the blood specimen and said fixed enzyme membrane for measuring the blood sugar concentration in the specimen on the basis of a reaction current signal generated in the sensor by the chemical reaction. The analyzing apparatus has a microcomputer for calculating a conversion coefficient used for converting the reaction current into a blood sugar concentration value by introducing a standard solution having a known blood sugar concentration, for storing data representing the value of said conversion coefficient, for calculating a blood sugar concentration value of a test specimen based upon the stored conversion coefficient value and reaction current from the test specimen. A display and printer provide a read-out of the blood sugar concentration value obtained. The microcomputer controls temperature and timing of the measurement process, as well as other control functions.

REFERENCES:
patent: 3542662 (1970-11-01), Hicks
patent: 3770607 (1973-11-01), Williams
patent: 3902970 (1975-09-01), Levin
patent: 3920969 (1975-11-01), Berglas
patent: 3960497 (1976-06-01), Acord
patent: 4224405 (1980-09-01), Hijikata

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