Probe for measuring a biological signal and system incorporating the probe

摘要

A probe (10) for use in photoplethysmographic (PPG) measurement includes a light source unit (58) including a light source that contacts a predetermined site of an object (62) and emits light onto the predetermined site, a photodetector unit (60) positioned facing the light source unit (58) to receive the light emitted from the light source unit (58) and transmitted through the object (62), a body (50) having a space for receiving the object (62) and in which the light source unit (58) and the photodetector unit (60) are positioned in a same optical axis, and a pressure application unit (53) coupled to the body (50) for applying a pressure to the object (62) via the light source unit (58). A biological signal measuring system includes the above probe (10), a controller (20) for controlling operations of the probe and for recording and analyzing signals output from the probe, a detected light intensity display unit (30) for displaying an intensity of detected light, and a biological signal display unit (40). <IMAGE>