Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1990-01-12

1992-03-31

Jaworski, Francis

Surgery

Truss

Pad

128 4, A61B 812

Patent

active

050998501

ABSTRACT:
An ultrasonic diagnosing apparatus having an ultrasonic observation system for observing an ultrasonic tomographic image of a portion of a body of patient and an optical observation system for observing an optical image of the portion, a direction indicator is superimposed on an ultrasonic tomographic image displayed on a monitor screen, and the direction indicator is rotated on the monitor screen in accordance with the rotation of the ultrasonic tomographic image. The ultrasonic diagnosing apparatus further has a system for compensating for a deviation between the ultrasonic tomographic image displayed on the monitor screen and the optical image due to a twist of a flexible shaft which is extended in an insertion section of the apparatus to rotate an ultrasonic vibrating element arranged in a distal end of the insertion section.

REFERENCES:
patent: 3817089 (1974-06-01), Eggleton et al.
patent: 4391282 (1983-07-01), Ando et al.
patent: 4605009 (1986-08-01), Pourcelot et al.
patent: 4661810 (1987-04-01), Himelstein et al.
patent: 4869256 (1989-09-01), Kanno et al.
patent: 4880011 (1989-11-01), Imade et al.
Meyer et al., "High Resolution Intreavascular Imaging via Ultrasonic Catheters: Proof of Concept", Proceedings of the IEEE, vol. 76, No. 9, pp. 1074-1078, Sep. 1988.

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