血流センサ及び血流測定装置

• Format: Patent
• Language: Japanese
• Published: 27.12.2018
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

血流量の測定中に測定結果の変動が抑制される血流センサを提供する。プローブ部１１は、レーザ光を発生するレーザダイオード、光を受光するフォトダイオード、被験体に接触する接触面４４を有するセンサ筐体２７、を備えており、レーザダイオードが発生したレーザ光を接触面４４を通じて被験体８２に照射し、被験体８２からの反射光をフォトダイオードにおいて受光し、受光量に関する信号を出力するセンサ部２１と、センサ筐体２７を、接触面４４と交差する上下方向７へ移動可能に保持する保持部２２と、保持部２２に加わる外力をセンサ部２１へ緩衝して伝達するコイルバネ２３と、を具備する。 To provide a blood flow sensor in which a fluctuation of measurement results is suppressed during measurement of the blood flow volume. A probe portion 11 is provided with a sensor portion 21 which has a laser diode generating laser light, a photodiode receiving light, and a sensor housing 27 having a contact surface 44 contacting a subject and which irradiates a subject 82 with the laser light generated by the laser diode through the contact surface 44, receives reflected light from the subject 82 in the photodiode, and outputs a signal relating to the received light amount, a holding portion 22 holding the sensor housing 27 so as to be movable in an up-and-down direction 7 crossing the contact surface 44, and a coil spring 23 absorbing and transmitting external force applied to the holding portion 22 to the sensor portion 21.