Surgical knife with retractable blade and depth of cut control

Details Surgical knife with retractable blade and depth of cut control Surgical knife with retractable blade and depth of cut control

1995-01-13

1997-04-15

Buiz, Michael Powell

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606167, 30293, 30335, A61B 1732

Patent

active

056204531

ABSTRACT:
A surgical knife for use in ophthalmic surgery includes a bladeholder assembly holding a surgical cutting blade, with the bladeholder assembly sliding into and out of a hollow knife handle, and a plunger mechanism manually operable to move said bladeholder assembly to a position where the cutting blade is exposed and usable for surgery. The knife also includes a depth of cut control which sets the depth to which the blade is used to make an ocular incision and which allows the plunger mechanism to extend and retract the bladeholder assembly without changing the depth of cut. A modified micrometer scale allows the depth of cut to be conveniently changed by a given distance without recalculating the cutting depth.

REFERENCES:
patent: 4499898 (1985-02-01), Knepshield et al.
patent: 4898170 (1990-02-01), Hofmann et al.

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