Ultrasonic diagnosis apparatus

Details Ultrasonic diagnosis apparatus Ultrasonic diagnosis apparatus

1988-02-12

1990-08-07

Jaworski, Francis

Surgery

Truss

Pad

73626, 12866101, A61B 800

Patent

active

049459155

ABSTRACT:
An ultrasonic diagnosis apparatus comprises a probe for transmitting an ultrasonic beam onto a target body and receiving an ultrasonic echo from the target body and a diagnosis device for supplying a transmission pulse to the probe and processing an electrical signal from the probe to prepare tomographic image information. The probe includes a transmitter, which transmits an ultrasonic beam on each line of a slice of the target body from an oblique direction so as to sequentially irradiate the ultrasonic beam on the individual pixels of the slice, an ultrasonic image pick-up element, which has electric/acoustic transducer elements provided in parallel to the slice and arranged two-dimensionally with respect to each pixel of the slice and converts an ultrasonic echo into an electrical signal in accordance with sound pressure, an ultrasonic lens provided in parallel to the slice to converge the ultrasonic echo from each pixel of the slice on an associated electric/acoustic transducer element of the ultrasonic image pick-up element, a transmission multiplexer for sequentially scanning a line on which the ultrasonic beam from the transmitter is to be irradiated, and a reception multiplexer, coupled to the individual electric/acoustic transducer elements of the ultrasonic iage pick-up element so as to two-dimensionally scan these coverting elements.

REFERENCES:
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patent: 4570488 (1986-02-01), Miwa et al.
patent: 4671293 (1987-06-01), Shaulov
Fraser, J. et al., "A Two-Dimensional Electronically Focussed Imaging System", 1974, IEEE UTS Symp. Proceedings, pp. 19-23.
Ultrasonic Pulse Technical Handbook, pp. 810-813, Nikkan Kogyo.
Ultrasonic Diagnosis, pp. 81-84, Igaku Shoin.

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