公开(公告)号：US4183360A

公开(公告)日：1980-01-15

申请号：US928155

申请日：1978-07-26

申请人： Walter Carlson ,  Donald Wasserman ,  William Asburry

发明人： Walter Carlson ,  Donald Wasserman ,  William Asburry

IPC分类号： A61B5/024 ,  A61B5/0295 ,  A61B5/02

CPC分类号： A61B5/02416

摘要： A photoplethysmographic instrument for simultaneous recordings of multifinger blood flow. The instrument consists of a plurality of suitably spaced and angled finger-receiving housings, each containing a photodetector, with respective light pipe bundles conducting light from a common source to the housings. The photodetectors respond to differences in light transmission through the patient's fingers inserted in the housings. The photodetectors are connected through respective preamplifiers to the respective inputs of a multichannel recorder, thereby providing recorded traces of the respective optical transmissions through the fingers. The photodetectors may also be connected to the respective inputs of a multichannel tape recorder, thereby providing magnetic tape recordings of the respective optical transmissions.

摘要翻译： 一种用于同时记录多功能血液流量的光谱体积描记仪。 该仪器包括多个适当间隔和成角度的手指接收壳体，每个壳体包含光电检测器，相应的光管束将来自共同源的光传导到壳体。 光电探测器响应通过插入壳体中的患者手指的光透射率的差异。 光电检测器通过相应的前置放大器连接到多通道记录器的相应输入端，从而通过手指提供相应光学传输的记录轨迹。 光电检测器还可以连接到多通道磁带录音机的相应输入端，从而提供各个光传输的磁带记录。