| 摘要 |
PROBLEM TO BE SOLVED: To directly measure the collected blood of extremely low transmissivity by using an optical means and to measure the blood characteristics of a patient requiring emergency medical treatment in an extremely short time. SOLUTION: In a test container 1 inserted to a container holding means 2, by a lighting circuit 5, a first light emitting source LD1 and a second light emitting source LD2 are alternately lighted by synchronizing signals originated by a built-in clock and infrared light and red visible light are alternately projected to a simple S (fluid to be measured containing blood) inside the test container 1. At the time, the light quantity of transmission light 12c and 12d alternately transmitted inside the test container 1 is detected as electric signals by a photosensor PS, the secular change of each light quantity is measured by a signal processing part 6, the measured value is converted to the secular change of each transmissivity and the blood characteristic value of the sample S is calculated by an arithmetic processing part 11 based on the measured result.
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