| 摘要 |
PURPOSE: An oxygen-saturation measuring apparatus is provided to improve measurement accuracy by blocking the penetration of lights and ventilating a case. CONSTITUTION: An upper case(31) and a lower case(32) are coupled to pivot around a hinge. A light receiving element(44) is installed in the upper case. A light emitting device(45) is installed in the lower case. A spring(50) is coupled to the hinge. Bellows tubes(80) are attached to both sides of the front of the upper and lower cases.
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