Surgical knife

Details Surgical knife Surgical knife

1988-06-10

1990-02-06

Truluck, Dalton L.

Surgery

Instruments

Corneal cutter or guide for corneal cutter

A61F 1732

Patent

active

048981702

ABSTRACT:
A surgical knife, especially for use by ophthalmic surgeons for performing radial keratotomy, comprises an elongate body and a head portion which receives a diamond blade and within which the blade is displaceable forwards and backwards lengthwise of the knife along a line extending at an angle of inclination to the axis of the knife body. The angle of inclination is preferably about 20.degree.. The knife preferably incorporates a micrometer setting mechanism, adjustment of which is transmitted through the knife body to a piston located in the head portion and arranged to make contact with a knife holder for the blade. The transmission chain from micrometer to piston may include a cranked element acting on the piston.

REFERENCES:
patent: 4006746 (1977-02-01), Edwards
patent: 4071029 (1978-01-01), Richmond et al.
patent: 4227527 (1980-10-01), DeFrank et al.
patent: 4414974 (1983-11-01), Dotson et al.
patent: 4473076 (1984-09-01), Williams et al.
patent: 4499898 (1985-02-01), Knepshield et al.
patent: 4516575 (1985-05-01), Gerhard et al.
patent: 4534348 (1985-08-01), Fedorov et al.
patent: 4552146 (1985-11-01), Jensen et al.
patent: 4630378 (1986-12-01), Kulp et al.

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