Pressure-pulse-wave detecting apparatus
First Claim
1. A pressure-pulse-wave detecting apparatus for detecting a pressure pulse wave produced from an arterial vessel of a subject, at a plurality of positions on a body surface right above said arterial vessel, the apparatus comprising:
- a main body having a pressing surface which is pressed against said body surface, and a plurality of through holes formed therethrough and opening in said pressing surface;
a plate member secured to said pressing surface of said main body such that said plate member covers the openings of said plurality of through holes, said plate member having flexibility and including a plurality of displaceable portions each of which is aligned with the opening of a corresponding one of said plurality of through holes;
a plurality of optical fibers, one of opposite ends of each of said plurality of optical fibers being fitted in a corresponding one of said plurality of through holes of said main body, such that an end face of said one of opposite ends is opposed to a corresponding one of said plurality of displaceable portions of said 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 one of said plurality of optical fibers, said each signal generating device detecting the pressure pulse wave transmitted to a corresponding one of said plurality of displaceable portions of said plate member, based on minute displacement of said corresponding displaceable portion which is optically detected through said corresponding optical fiber, and generating an electrical signal representing the detected pressure pulse wave.
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Accused Products
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.
53 Citations
10 Claims
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1. A pressure-pulse-wave detecting apparatus for detecting a pressure pulse wave produced from an arterial vessel of a subject, at a plurality of positions on a body surface right above said arterial vessel, the apparatus comprising:
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a main body having a pressing surface which is pressed against said body surface, and a plurality of through holes formed therethrough and opening in said pressing surface; a plate member secured to said pressing surface of said main body such that said plate member covers the openings of said plurality of through holes, said plate member having flexibility and including a plurality of displaceable portions each of which is aligned with the opening of a corresponding one of said plurality of through holes; a plurality of optical fibers, one of opposite ends of each of said plurality of optical fibers being fitted in a corresponding one of said plurality of through holes of said main body, such that an end face of said one of opposite ends is opposed to a corresponding one of said plurality of displaceable portions of said 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 one of said plurality of optical fibers, said each signal generating device detecting the pressure pulse wave transmitted to a corresponding one of said plurality of displaceable portions of said plate member, based on minute displacement of said corresponding displaceable portion which is optically detected through said corresponding optical fiber, and generating an electrical signal representing the detected pressure pulse wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification