| 摘要 |
A pressure pulse wave sensor (10) for detecting a pressure pulse wave produced from an arterial vessel of a living subject in synchronism with heartbeat of the subject, the sensor having a press surface (54) adapted to be pressed on a body surface (16) of the subject, a protruding portion protruding from the press surface and having a top surface (30), and at least one pressure sensing element (32) provided in the top surface of the protruding portion, for detecting the pressure pulse wave produced from the arterial vessel, the top surface of the protruding portion being covered with a resilient protective layer (78), the pulse wave sensor further comprising a hard member (58, 98) which surrounds the protruding portion such that a top end of the hard member is substantially flush with the resilient protective layer covering the top surface of the protruding portion. <IMAGE> |
