| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensor capable of measuring blood refilling time accurately.SOLUTION: A sensor 10 is used for measuring blood refilling time after compressing a biological tissue of a subject. A light emitting part 11 irradiates the biological tissue of the subject with light. A light receiving part 13 receives reflected light or transmitted light from the biological tissue of the subject. A first light transmission member 12, whose one end is a contact face with the light emitting part 11 and the other end is a contact face with the subject, is made of a light transmissive material. A second light transmission member 14, whose one end is a contact face with the light receiving part 13 and the other end is a contact face with the subject, is made of the light transmissive material. A light shielding member 15 compresses the subject and blocks light between the light emitting part 11 and the light receiving part 13.SELECTED DRAWING: Figure 3 |
