Medical capsule device

Details Medical capsule device Medical capsule device

1984-02-28

1985-03-26

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604131, 604 93, 604891, 604327, 128765, 128769, A61M 700

Patent

active

045071152

ABSTRACT:
A medical capsule device comprises a capsule body having a chamber formed inside and a communicating path for communicating the chamber with outside, a movable member arranged in the chamber and movable between a liquid-receiving position at which the volume of said chamber is made largest and a liquid-pushing position at which the volume of said chamber is made smallest, and a coiled operating member made of shape memory alloy heated by ultrasonic wave to move the movable member to liquid-receiving and -pushing positions selectively.

REFERENCES:
patent: 3485235 (1969-12-01), Felson
patent: 3606592 (1971-09-01), Madurski et al.
patent: 3659600 (1972-05-01), Merrill
patent: 4439197 (1984-03-01), Honda et al.
"Shape Memory Alloys", Schetky, Scientific American, 1979 pp. 74-82.

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