Surgery – Truss – Pad
Patent
1989-06-21
1990-12-11
Cohen, Lee S.
Surgery
Truss
Pad
128633, 128667, A61B 502
Patent
active
049762680
ABSTRACT:
An apparatus for detecting pressure pulse wave, including a main body having a pressing surface which is pressed against the body surface of a subject, and a plurality of through holes formed therethrough and opening in the pressing surface; a plate member secured to the pressing surface of the main body such that the plate member covers the openings of the through holes, the pressing plate having flexibility and including a plurality of displaceable portions each of which is aligned with the opening of a corresponding through hole; a plurality of optical fibers, one of opposite ends of each optical fiber being fitted in a corresponding through hole of the main body, such that an end face of the one end is opposed to a corresponding displaceable portion of the plate member at a predetermined distance therefrom; and a plurality of signal generating devices each of which is connected to the other of the opposite ends of a corresponding optical fiber, each signal generating device detecting the pressure pulse wave transmitted to a corresponding displaceable portion of the plate member, based on minute displacement of the corresponding displaceable portion which is optically detected through the corresponding optical fiber, and generating an electric signal representing the detected pressure pulse wave.
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Harada Chikao
Kurosawa Kimimasa
Niwa Minoru
Sakai Hiroshi
Cohen Lee S.
Colin Electronics Co., Ltd.
Getzow Scott M.
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