| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxygen concentration measuring apparatus capable of evaluating a difference between left/right blood flows in the skull, with a measurement value by a phantom used as a reference at starting the measurement and measuring a relative concentration change in hemoglobin and a relative change in the oxygen. concentration thereafter.SOLUTION: The oxygen saturation measuring apparatus comprises a sensor section 2 and an apparatus body 3. The sensor section includes: light sources 11 and 12 for applying near infrared light; photo detectors 11A and 12A disposed at a prescribed distance apart from the light sources and receiving transmission light from the light sources; and a ROM part preliminarily measuring transmission light by a phantom and recording it as a reference value. The apparatus body includes an arithmetic processing part 34 that calculates an actual absorbancy by a light-receiving signal of the sensor section, compares it with the reference value, and calculates an oxygen state of a living body by the Beer-Lambert law. |
