Blood sugar level measuring method and apparatus
First Claim
1. A blood sugar level measuring method for measuring blood sugar level using a measuring apparatus comprising a body-surface contact portion, a temperature detecting portion for measuring temperatures on the body surface and of the environment, and an optical measuring portion for measuring the hemoglobin concentration and hemoglobin oxygen saturation in blood, wherein blood sugar level is calculated based on measurement data provided by said temperature detecting portion and by said optical measurement portion, said method comprising:
- a first step of determining whether or not the output from said temperature detecting portion is within a predetermined range when the body surface is not in contact with said body-surface contact portion; and
a second step of continuing with measurement if said output is within the predetermined range but making an error display and resetting the measurement if said output is outside the predetermined range.
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Accused Products
Abstract
In a method and apparatus for determining the blood glucose concentration reliably and accurately based on temperature data obtained from a subject without requiring blood sampling, chronological changes in the output from a temperature detecting portion are monitored. Based on those chronological changes, the making of contact between a body surface and a body surface contact portion is detected, whereupon the acquisition of measurement data is started and an advance-notice display about the timing of departure of the body surface is made. The moment of departure of the body surface from the body surface contact portion is detected, and if that moment is before the noticed timing, or in the absence of detection of the departure of the body surface from the body surface contact portion even after a certain time following the noticed timing, an error display is made on the apparatus and the measurement is reset.
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Citations
11 Claims
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1. A blood sugar level measuring method for measuring blood sugar level using a measuring apparatus comprising a body-surface contact portion, a temperature detecting portion for measuring temperatures on the body surface and of the environment, and an optical measuring portion for measuring the hemoglobin concentration and hemoglobin oxygen saturation in blood, wherein blood sugar level is calculated based on measurement data provided by said temperature detecting portion and by said optical measurement portion, said method comprising:
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a first step of determining whether or not the output from said temperature detecting portion is within a predetermined range when the body surface is not in contact with said body-surface contact portion; and
a second step of continuing with measurement if said output is within the predetermined range but making an error display and resetting the measurement if said output is outside the predetermined range. - View Dependent Claims (2)
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3. A blood sugar level measuring method for measuring blood sugar level using a measuring apparatus comprising a body-surface contact portion, a temperature detecting portion for measuring temperature on the body surface, and an optical measuring portion for measuring the hemoglobin concentration and hemoglobin oxygen saturation in blood, wherein blood sugar level is calculated based on measurement data provided by said temperature detecting portion and by said optical measurement portion, said method comprising:
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a step of detecting chronological change in the output from said temperature detecting portion;
detecting the presence or absence of contact of a body surface to said body-surface contact portion based on the chronological change in said output;
a first step of starting the storage of said measurement data for the calculation of said blood sugar level upon detection of contact of the body surface to said body surface contact portion;
a second step of detecting the moment of departure of the body surface from said body surface contact portion based on chronological changes in the output from said temperature detecting portion; and
a third step of making an error display and resetting the measurement if the detected moment is within a predetermined time, or if the departure of the body surface from said body surface contact portion is not detected a certain time after said predetermined time. - View Dependent Claims (4, 5, 6)
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7. A blood sugar level measuring apparatus comprising:
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a body surface contact portion;
a temperature detecting portion for measuring the temperature on a body surface and environment temperature;
an optical measuring portion for measuring hemoglobin concentration and hemoglobin oxygen saturation in blood;
a calculation portion for calculating blood sugar level based on measurement data provided by said temperature detecting portion and measurement data provided by said optical measuring portion;
a display portion;
an error decision portion; and
a control portion for centrally controlling individual portions, wherein said error decision portion determines whether or not either the temperature on said body surface or the environment temperature is within a predetermined range, and wherein said control portion causes said calculation portion to calculate said blood sugar level if said error decision portion determines that the temperature on said body surface and said environment temperature are within said predetermined range. - View Dependent Claims (8, 9, 10, 11)
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Specification