Pulse wave detecting device
First Claim
1. A pulse wave detecting device comprising:
- transmitting means having a plurality of transmitting piezoelectric vibrators to transmit an ultrasonic wave toward an artery;
receiving means having a plurality of receiving piezoelectric vibrators to receive an ultrasonic wave propagated through the artery;
pulse wave information acquiring means for acquiring pulse wave information from an ultrasonic wave signal transmitted from any one of the transmitting piezoelectric vibrators and received by any one of the receiving piezoelectric vibrators;
signal intensity detecting means for detecting a signal intensity of the received ultrasonic wave by the receiving means; and
optimal combination determining means for determining an optimal combination consisting of a single one of the transmitting piezoelectric vibrators to be used by the transmitting means to transmit the ultrasonic wave through the artery and a single one of the receiving piezoelectric vibrators to be used by the receiving means to receive the propagated ultrasonic wave based on the signal intensity of ultrasonic waves received by each of the respective receiving piezoelectric vibrators as detected by the signal intensity detecting means in response to the selection of various combinations of a transmitting piezoelectric vibrator and a receiving piezoelectric vibrator, and causing the transmitting piezoelectric vibrator of the optimal combination to transmit an ultrasonic wave and the receiving piezoelectric vibrator of the optimal combination to receive the ultrasonic wave for measurement by the pulse wave information acquiring means.
1 Assignment
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Accused Products
Abstract
A pulse wave monitor having a structure capable of automatically performing optimal positioning of a pulse wave probe with respect to a user'"'"'s body. A plurality of transmitting piezoelectric vibrators for transmitting an ultrasonic wave to an artery are provided along with a plurality of receiving piezoelectric vibrators for receiving an ultrasonic wave from the artery. An optimal combination of a transmitting piezoelectric vibrator and a receiving piezoelectric vibrator for use in pulse wave measurement is determined based on the intensity of a received ultrasonic wave signal. Ultrasonic wave transmission and reception are made by the optimal combination so that accurate pulse wave detection measurement is made possible by automatic positioning of the pulse wave probe.
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Citations
18 Claims
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1. A pulse wave detecting device comprising:
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transmitting means having a plurality of transmitting piezoelectric vibrators to transmit an ultrasonic wave toward an artery;
receiving means having a plurality of receiving piezoelectric vibrators to receive an ultrasonic wave propagated through the artery;
pulse wave information acquiring means for acquiring pulse wave information from an ultrasonic wave signal transmitted from any one of the transmitting piezoelectric vibrators and received by any one of the receiving piezoelectric vibrators;
signal intensity detecting means for detecting a signal intensity of the received ultrasonic wave by the receiving means; and
optimal combination determining means for determining an optimal combination consisting of a single one of the transmitting piezoelectric vibrators to be used by the transmitting means to transmit the ultrasonic wave through the artery and a single one of the receiving piezoelectric vibrators to be used by the receiving means to receive the propagated ultrasonic wave based on the signal intensity of ultrasonic waves received by each of the respective receiving piezoelectric vibrators as detected by the signal intensity detecting means in response to the selection of various combinations of a transmitting piezoelectric vibrator and a receiving piezoelectric vibrator, and causing the transmitting piezoelectric vibrator of the optimal combination to transmit an ultrasonic wave and the receiving piezoelectric vibrator of the optimal combination to receive the ultrasonic wave for measurement by the pulse wave information acquiring means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification