Hamamatsu-photonics K.k.

Keiji Suyama

Yukio Ueda

Katsuhiko Sato

Shigeru Sakamoto

Nobuharu Harada

Hideo Takahashi

Toshihiko Mizuno

Tatsuo Kurashima

Kouji Makino

Toshiyuki Tanaka

Koji Yamanaka

Nobuhiro Morita

Seiichiro Hashimoto

In a light source, a heat sink is in contact with a side-on type discharge tube. The heat sink is in contact with a peripheral regionaround an exit windowof the discharge tube. The heat sink consists of a spring memberkept in direct contact with the peripheral region, and a radiating blockwhich connects the spring memberto a radiator box. Since materials made by sputtering or the like of electrodes in the discharge tubemostly attach to the peripheral regionof side wall, it is feasible to decrease the amount of materials attaching to the exit windowand, in turn, lengthen the lifetime of the discharge tube. Another light source may be constructed in structure in which the heat sink is in contact with a head-on type discharge tube or in structure in which light is outputted from a projecting portion.

Light source

The present device is equipped with a measurement site holder that is constructed using a negative impression of the measurement site . As a result, variation in the measured values caused by the non-uniform distribution of components in the measurement site is reduced, so that variation in the measured values caused by variations in the light path length accompanying variations in the shape of the measurement site , and by variations in blood flow or the like that accompany differences in the contact pressure, can be reduced. Since living-body information and measurement parameters for the patient are recorded on a recording medium mounted on a measurement site holder for the exclusive use of the individual patient, the erroneous acquisition of living-body information for individual patients can be prevented, and reproducible measurements can be performed.

Noninvasion biological optical measuring instrument, measured portion holding device, and method for manufacturing the same

Growing community of inventors

Hamamatsu, Japan

Keiji Suyama