| 摘要 |
PROBLEM TO BE SOLVED: To provide a measurement system which accurately determines a state of a circulatory system of a subject.SOLUTION: A first sensor 10 emits light to a first portion of a subject, presses the first portion, and measures reflection light or transmission light from the first portion. A second sensor 11 emits light to a second portion of the subject, presses the second portion, and measures reflection light or transmission light from the second portion. A first measurement value calculation part 212 calculates an index associated with blood oxygen saturation or a blood refill time on the basis of a change in a light reception amount measured by the first sensor 10. A second measurement value calculation part 213 calculates blood oxygen saturation or a blood refill time on the basis of the change in the light reception amount measured by the second sensor 11. A pressure control part 211 controls so that a time difference between the start of releasing pressure by the first sensor 10 and the start of releasing pressure by the second sensor 11 is within a predetermined time.SELECTED DRAWING: Figure 1 |
