Knife

Details Knife Knife

1993-01-22

1994-07-19

Aschenbrenner, Peter A.

Surgery

Instruments

Cutting, puncturing or piercing

30 2, 30151, 30335, A61B 1732

Patent

active

053304942

ABSTRACT:
A knife 10 comprises a blade holder 12, a blade 24 attached to the holder, and a protective member for the blade. Bias means 54 biasses the protective member into a first position in which protective edges 46, 48 thereof protrude beyond the blade cutting edge, so that the protective member covers the cutting edge. The protective member is movable against the biassing force exerted by the bias means, from the first position to a second position in which the cutting edge is exposed for use. First locking means locking the protective member in its first position, are also provided. The first locking means are adapted to release automatically the protective member on the protective edge of the protective member being placed against a surface to be cut and force being exerted on the blade in the direction of said surface.

REFERENCES:
patent: 3748736 (1973-07-01), Eisen
patent: 3905101 (1975-09-01), Shepherd
patent: 4086698 (1978-05-01), Sparks
patent: 4157616 (1979-06-01), Lundqvist
patent: 4393587 (1983-07-01), Kloosterman
patent: 4531286 (1985-07-01), Vito et al.
patent: 4980977 (1991-01-01), Matin et al.

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