| 摘要 |
<p>An examination apparatus (1) measures the oxygenation of an object (40) by near infrared light transmission spectrophotometry. The examination apparatus (1) comprises light source means (LD1-LD4); an illumination side fixture (2) to apply light to the object (40), a detection side fixture (3) to receive light transmitted through the object (40), a transmitted light detection device (54) to detect the light transmitted through the object (40), and a computer system (20) to control the apparatus (1) and calculate its oxygenation. To inspect the examination apparatus (1) itself before the oxygenation measurement, the illumination-side fixture (2) and the detection-side fixture (3) have such structures (4, 5, 6) that enable them to be assembled together in such a manner that light is directly transmitted from one to the other. During the measurement, the examination apparatus (1) including its photomultiplier tube (58) is regularly inspected by using a separate inspection light source (15).</p> |
