Surgical endoscopic cannula with positive touch

Details Surgical endoscopic cannula with positive touch Surgical endoscopic cannula with positive touch

1992-01-16

1994-05-17

Mancene, Gene

Surgery

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

Treating material introduced into or removed from body...

A61M 500

Patent

active

053123735

ABSTRACT:
A positive touch surgical endoscopic cannula assembly in which one, or both, of liquid or gas may be introduced or removed from a body cavity during surgery. The device contains a valving mechanism responsive to finger or thumb touch of the surgeon and having a conically shaped force resistor which is partially inverted during movement of the valve between open and closed positions. The partial inversion of the flexible resistor is detectable through an actuator to the hand or thumb of the operator to positively indicate positioning of the valve head and seat members.

REFERENCES:
patent: 4456223 (1984-06-01), Ebling
patent: 4655752 (1987-04-01), Honkanen et al.
patent: 4696305 (1987-09-01), von Berg
patent: 4776840 (1988-10-01), Freitas et al.

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