Mechanical scan type ultasonic probe

Details Mechanical scan type ultasonic probe Mechanical scan type ultasonic probe

1991-04-05

1992-12-08

Howell, Kyle L.

Surgery

Truss

Pad

12866010, 12866009, A61B 812

Patent

active

051688786

ABSTRACT:
A mechanical scan type ultrasonic probe is disclosed, in which a rotational force transmitting shaft for transmitting the rotational force of a motor to an ultrasonic transducer, and a guide pipe for guiding the rotational force transmitting shaft are improved. The guide pipe is a spiral spring. The rotational force transmitting shaft is a highly conductive double spiral spring. Since the guide pipe is constituted by a spiral spring, the pipe can follow any bending movement of the rotational force transmitting shaft to guide the shaft. In addition, since the rotational force transmitting shaft is constituted by a highly conductive double spiral spring, it can properly supply and extract electrical signals to and from an ultrasonic transducer, and can properly transmit the rotational force to the transducer.

REFERENCES:
patent: 3443433 (1969-05-01), Liston et al.
patent: 4688576 (1987-08-01), Meyers
patent: 4732156 (1988-03-01), Nakamura
patent: 4893628 (1990-01-01), Angelsen
patent: 4899757 (1990-02-01), Pope, Jr. et al.
patent: 4991588 (1991-02-01), Pflueger et al.

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