< Topic >It prevents the relative movement from the probe and the finger in the probe of the pulse oxy meter which is installed in the finger, at the same time, preventing the stop of the blood style with the pressure of the finger, it does the measurement which it stabilizes. SolutionsIn the surface of light absorbent section side housing 2, underneath accommodating the finger of the suffering inspection person, concave section 2R is formed in one somatotype pulse oxy meter which from luminous section side housing 1 and light absorbent section side housing 2 is formed, here, provides the rib 5 which extends to the longitudinal direction of the concave section. Rib 5 putting the light absorbent section PD which is placed in the central part of concave section 2R, is respectively provided in symmetrical position of the both sides. When measuring, as for the finger, to be pushed by the surface of concave section 2R by the luminous section side housing 1 which is pushed in the spring, rib 5 entering into the skin of the finger a little, because it is kept inside concave section 2R, as relative movement from the concave section 2R and finger FG is obstructed, in the part of the finger which opposes to light absorbent section PD contact pressure becomes weak, there are no times when stop of the blood style happens. < Selective figure >Figure 1【課題】指に装着するパルスオキシメータのプローブにおいて、プローブと指との相対的移動を防止し、かつ、指の圧迫による血流の停止を防止して安定した計測を行う。【解決手段】発光部側ハウジング1と受光部側ハウジング2とから構成される一体型パルスオキシメータには、受光部側ハウジング2の上面に、被検者の指を収容する下側凹部2Rが形成されており、ここに、その凹部の長手方向に延びるリブ5を設ける。リブ5は、凹部2Rの中央部に置かれた受光部PDを挟んで、その両側の対称的な位置にそれぞれ設けられる。測定時には、ばねに押された発光部側ハウジング1により、指は、凹部2Rの表面に押し付けられ、リブ5が指の皮膚に少し入り込んで凹部2R内に保持されるので、凹部2Rと指FGとの相対的移動が阻止されるとともに、受光部PDに対向する指の部分では接触圧力が弱まり、血流の停止が起こることはない。【選択図】図1
