NON-BLOOD COLLECTING TYPE HANDY BLOOD SUGAR METER (2)

摘要

PPROBLEM TO BE SOLVED: To provide a non-blood collecting type handy blood sugar meter detecting exactly a change in amount of a transmitted light and suppressing a spread by various factors of each specimen as a reading type by converting the detected amount of the transmitted light to a blood sugar level via "a correlation table" based on a correlation between the transmitted light amount of the light irradiated to an earlobe and the blood sugar level is adopted to calculate the blood sugar level from a trace amount of blood sugar in blood. PSOLUTION: A site, the earlobe with few individual differences and an always stable blood flow, hardly physiologically influenced, is chosen. The transmitted light amount is incarnated by irradiating with a light of a wavelength most absorbed by the blood sugar, and the blood sugar amount responding to the irradiated light is increased by extending exposure time. A detector with the maximum sensitivity and a high amplification rate is used for detecting the transmitted light to easily catch the responding result of the blood sugar to the irradiated light. Variations in measuring the light amount are classified and patternized for each definite range, and the mean values and the correlated blood sugar values are connected to prepare "a correlation table" for each pattern, and the error is reduced by selecting "a correlation table" with an optimum pattern for each individual. PCOPYRIGHT: (C)2004,JPO