Intracavitary diagnosing apparatus employing ultrasound

Details Intracavitary diagnosing apparatus employing ultrasound Intracavitary diagnosing apparatus employing ultrasound

1993-02-18

1994-06-14

Kamm, William E.

Surgery

Truss

Pad

12866301, A61B 812

Patent

active

053201060

ABSTRACT:
An intracavitary diagnosing apparatus employs an ultrasonic probe whose focused range can be moved. In the ultrasonic probe are disposed an ultrasonic transducer and an ultrasonic mirror for reflecting ultrasound. The relative distance between the ultrasonic mirror and the transducer in the longitudinal direction of the probe is changed by a driving unit which may be a wire mounted on the ultrasonic mirror or by a driving unit for causing an attenuation-preventing liquid to flow in and out. Consequently, the position of the focused range of an ultrasonic beam irradiated from the ultrasonic probe in a direction perpendicular thereto can be changed, and a stand-off region can thus be eliminated.

REFERENCES:
patent: 4408612 (1983-10-01), Utsugi
patent: 5000185 (1991-03-01), Yock
patent: 5029588 (1991-07-01), Yock et al.
patent: 5203338 (1993-04-01), Jang

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