Patent ID: 7251514
Filing Date: 2007-07-31
Classification: A61B,G01K

Abstract:
1. A blood sugar level measuring apparatus comprising: a heat amount measurement portion for measuring a plurality of temperatures derived from a body surface and obtaining information used for calculating the amount of heat transferred by convection and the amount of heat transferred by radiation, both related to the dissipation of heat from said body surface; an oxygen level measuring portion for obtaining information about blood oxygen level; a storage portion for storing a relationship between parameters corresponding to said plurality of temperatures and blood oxygen level and blood sugar levels; a calculating portion which converts a plurality of measurement values fed from said heat amount measuring portion and said oxygen level measurement portion into said parameters, and computes a blood sugar level by applying said parameters to said relationship stored in said storage portion; a display portion for displaying the blood sugar level calculated by said calculating portion; and a warning control portion, wherein: said oxygen level measurement portion includes a blood flow volume measurement portion for obtaining information about blood flow volume, and an optical measurement portion for obtaining hemoglobin concentration and hemoglobin oxygen saturation in blood, wherein said blood flow volume measurement portion includes: a body-surface contact portion; an adjacent temperature detector disposed adjacent to said body-surface contact portion; an indirect temperature detector for detecting the temperature at a position spaced apart from said body-surface contact portion; and a heat conducting member connecting said body-surface contact portion and said indirect temperature detector, and wherein: said warning control portion causes said display portion to display a warning if the blood sugar level calculated by said calculating portion is larger than a warning blood sugar level.