Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1979-10-12

1982-03-09

Michell, Robert W.

Surgery

Truss

Pad

128663, A61B 1000

Patent

active

043184138

ABSTRACT:
An ultrasonic diagnostic apparatus has a probe for transmitting and receiving an ultrasonic wave and an amplitude-detecting circuit, and in operation transmits an ultrasonic wave into an organism while the organism is scanned by the probe and amplitude-detects a received signal reflected from the inside of the organism, thereby to obtain a tomographic image of the organism. The ultrasonic diagnostic apparatus further includes a phase detecting circuit and an ultrasonic drive circuit. The ultrasonic drive circuit alternately supplies to the probe a first drive signal for obtaining tomographic image information and a second drive signal for obtaining blood flow information, scans in a direction of the ultrasonic wave transmission according to the first drive signal and sets the ultrasonic wave transmitting direction according to the second drive signal to a desired direction for obtaining blood flow information. Blood flows information may be obtained for a specific point, a specific line, a specific area, or for a specific area in synchronism with the organism's heartbeat. Thereby, the tomographic image information of the organism and the blood flow information as well are simultaneously obtained.

REFERENCES:
patent: 3550070 (1970-12-01), McLeod
patent: 3937707 (1976-02-01), Kossoff
patent: 4062237 (1977-12-01), Fox
patent: 4103679 (1978-01-01), Aronson
patent: 4141347 (1979-02-01), Green et al.
patent: 4182173 (1980-01-01), Papadofrangakis et al.
patent: 4217909 (1980-08-01), Papadofrangakis et al.
Ogawa, T. et al., "B-Scan/Doppler Duplex Scanner", Nippon UTS Med. Society, 1977, pp. 183-184.

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