Surgical knife with blade shield

Details Surgical knife with blade shield Surgical knife with blade shield

1994-11-08

1996-06-04

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

30153, 30329, 30339, A61B 1732, B26B 0306, B26B 0100

Patent

active

055228283

ABSTRACT:
A scalpel with a blade set at about thirty degrees to the handle has a blade shield that pivots up from the handle and a shield lock that prevents accidental lifting of the shield. The shield lock includes a small movable shaft just below the sidewalls of the shield next to the handle. A small disc is at each end of the shaft close to the handle and prevents the shield from being pivoted up. A counterbore around the shaft on one side of the handle enables the adjacent disc to be pushed in, thus extending the opposite disc permitting the shield to be pivoted up to unshield the blade.

REFERENCES:
patent: 4137631 (1979-02-01), Pickett et al.
patent: 5055106 (1991-10-01), Lundgren
patent: 5250064 (1993-10-01), Schneider
patent: 5330493 (1994-07-01), Haining
patent: 5330494 (1994-07-01), Westhvizen et al.

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