Laparoscopic scalpel

Details Laparoscopic scalpel Laparoscopic scalpel

1999-05-17

2000-06-20

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

A61B 1732

Patent

active

060772840

ABSTRACT:
A scalpel which is used for enlarging an incision in an abdominal wall to remove an organ or body tissue from an abdominal or chest cavity through which a cannula is inserted. The scalpel has a split resilient generally cylindrical collar for mounting the scalpel on the cannula, a pair of sharp pointed cutting blades mounted on opposite sides of an outer surface of the collar and a pair of generally rectangular pusher arms pivotally mounted on the cutting blades. The pusher arms are rotatable from positions of outward extending relationship to the collar to positions of adjacent relationship to the collar. The incision is enlarged by mounting the scalpel on the cannula and applying a force to the pusher arms in outward extending positions to push the sharp cutting blades through the abdominal wall. If the blades do not fully penetrate the abdominal wall, the pusher blades are rotated in adjacent relationship and used to completely push the sharp cutting edges through the abdominal wall.

REFERENCES:
patent: 5372588 (1994-12-01), Farley et al.
patent: 5449335 (1995-09-01), Rhum et al.

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