公开(公告)号：US4694833A

公开(公告)日：1987-09-22

申请号：US839433

申请日：1986-03-13

Applicant: Kenji Hamaguri

Inventor： Kenji Hamaguri

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  G01J1/16 ,  G01N21/31 ,  G01N33/72 ,  A61B6/00

CPC classification number: A61B5/14551 ,  G01N21/314 ,  G01J1/1626 ,  G01J2001/161 ,  G01N2201/1245

Abstract: A noninvasive device for photoelectrically measuring a property of arterial blood is provided. Light that contacts living tissue with arterial blood is converted into a pair of electrical signals. The electrical signals are processed to provide information of the amplitude of the measured signals and are further processed to produce a final output signal that is substantially a square function of a ratio between the electrical signals representative of the amplitudes.

Abstract translation: 提供了用于光电测量动脉血液性质的非侵入性装置。 用动脉血接触活体组织的光被转换为一对电信号。 处理电信号以提供所测量信号幅度的信息，并被进一步处理以产生基本上是代表幅度的电信号之间的比率的平方函数的最终输出信号。