< Topic >Be able to evaluate the difference of the blood current the left and right in the cranium the measurable quantity due to phantom as a standard when starting the measurement, furthermore the oxygen saturation measurement equipment which after that can measure the relative concentration change of the hemoglobin and the relative change oxygen saturation is offered.SolutionsSensor section it consists of with 2 and device itself section 3, in the sensor section from the illuminant 11,12 which irradiates the near infrared and the illuminant it is laid out in fixed distance and it consists of with the ROM section which light absorbent component 11A and 12A which absorb light and, measuring the transmitted light beforehand due to phantom, records the transmitted light from the illuminant as reference level, the device itself section calculates actual absorbency with the light absorbent signal of the sensor section, being adapted to the doctrine of bearanbato by comparison with reference level, features that it has the operation treatment section 34 operation the oxygen state of the living body.< Choice figure >Drawing 1【課題】ファントムによる測定値を測定開始時の基準として、頭蓋における左右の血流の差を評価でき、しかもその後のヘモグロビンの相対濃度変化と酸素飽和度の相対変化を測定できる酸素飽和度測定装置を提供する。【解決手段】センサー部2と装置本体部3とからなり、センサー部には近赤外線を照射する光源11,12と、光源から一定の距離に配置されて光源からの透過光を受光する受光素子11A,12Aと、予めファントムによる透過光を測定して基準値として記録したROM部とからなり、装置本体部は、センサー部の受光信号により実際の吸光度を算出し、基準値と比較してベアーランバートの法則に適応して生体の酸素状態を演算する演算処理部34を備えていることを特徴とする。【選択図】図1
