Surgical scalpel with automatically retractable blade

Details Surgical scalpel with automatically retractable blade Surgical scalpel with automatically retractable blade

1995-05-12

1997-09-09

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

30162, A61B 1732

Patent

active

056650990

ABSTRACT:
A surgical scalpel includes a blade carried by a blade support, which is slidable within an outer sheath. The blade support is movable from a first position in which the blade is within the sheath to a second position in which the blade is exposed. One end of the blade support has a hollow cylinder, in which a stationary piston is disposed. Movement of the blade support from the first position to the second position creates a vacuum within the hollow cylinder, so that when the surgeon releases his or her grip on the scalpel, the blade support is quickly and automatically retracted to the first position.

REFERENCES:
patent: 2619724 (1952-12-01), Manthey et al.
patent: 3590808 (1971-07-01), Muller
patent: 3977079 (1976-08-01), Rebold
patent: 5211652 (1993-05-01), Derbyshire

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