Pulse wave detecting apparatus
First Claim
1. A blood pressure monitoring apparatus comprising:
- a pressure sensitive semiconductor element for detecting pulse wave produced from an arterial vessel of a subject, and generating a pulse wave signal representing the detected pulse wave, the semiconductor element being pressed against said arterial vessel via a body surface of the subject so as to detect the pulse wave;
a housing for accommodating said semiconductor element;
control means for monitoring blood pressure of the subject based on the pulse wave signal supplied from said semiconductor element, said housing and said control means being separate from each other, and connectable to each other; and
timer means for measuring an operation time of said semiconductor element, and generating a full-use signal when said operation time exceeds a reference value which represents that the semiconductor element has been used for a permitted period of time, said timer means being supported by said housing.
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Accused Products
Abstract
A pulse wave detecting apparatus having a pressure-sensitive semiconductor element for detecting pulsation of an artery of a subject and converting the detected pulsation into electrical signal, the electrical signal representing pulse wave corresponding to the pulsation, the semiconductor element being pressed against a body surface of the subject such that the semiconductor element is aligned with the artery via the body surface, the apparatus including a timer device for measuring operation time of the pressure-sensitive semiconductor element, and generating a full-use signal when the measured operation time exceeds a reference value representing that the semiconductor element has been fully operated up to its permitted operation time.
65 Citations
6 Claims
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1. A blood pressure monitoring apparatus comprising:
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a pressure sensitive semiconductor element for detecting pulse wave produced from an arterial vessel of a subject, and generating a pulse wave signal representing the detected pulse wave, the semiconductor element being pressed against said arterial vessel via a body surface of the subject so as to detect the pulse wave; a housing for accommodating said semiconductor element; control means for monitoring blood pressure of the subject based on the pulse wave signal supplied from said semiconductor element, said housing and said control means being separate from each other, and connectable to each other; and timer means for measuring an operation time of said semiconductor element, and generating a full-use signal when said operation time exceeds a reference value which represents that the semiconductor element has been used for a permitted period of time, said timer means being supported by said housing. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification