Capmet, Inc.

Fujita Medical Instruments Co., Ltd.

Haruo Yamamura

Hironobu Maeda

An oxygen saturation measuring apparatus capable of measuring arterial blood oxidation saturation (SpO2), and tissue oxygen saturation (rSO2), safely, easily and economically at a desired position of a biological body for a long time continuously. A ROM stores the distance information between a light emitting unit and a light receiving unit situated corresponding to the depth of a target intended to be measured for tissue oxygen saturation, a light emission driving unit makes the light emitting unit emit light in an amount of light corresponding to the distance information, MPU makes the light emitting unit emit a pulses capable of measuring the tissue oxygen saturation, MPU applies pulse capable of measuring the tissue oxygen saturation from the light emission driving unit to the light emitting unit, and the pulse increasing unit increases the amount of pulses from MPU for a predetermined time to pulses capable of measuring the arterial blood oxygen saturation.

Oxygen saturation measuring device, probe adapted to be used therefor, and oxygen saturation measuring method

An oxygen saturation measuring sensor is capable of increasing reliability of information of parts having different depth and includes a pad attachable to a human body; plural light sources arranged on the pad to be adjacent in a separate state, and irradiate near-infrared light; plural light receiving elements arranged on the pad to be adjacent in a separate state and correspond one to one to the plural light sources with reference to a common center with an innermost side of the plural light sources, and that receive transmitted light from the corresponding plural light sources; and a ROM unit that stores a reference value through measuring transmitted light using a phantom in advance and stores a light receiving amount of the transmitted light received by the plural light receiving elements.

Growing community of inventors

Tokyo, Japan

Haruo Yamamura