Keratome with miniature differential micrometer

Details Keratome with miniature differential micrometer Keratome with miniature differential micrometer

1992-12-04

1994-02-22

Graysay, Tamara L.

Surgery

Instruments

Corneal cutter or guide for corneal cutter

33814, 33828, 33512, A61B 1732, G01B 318

Patent

active

052882926

ABSTRACT:
A keratome includes a miniature differential micrometer having a barrel, a middle sleeve, and a inner sleeve connected by a threaded shaft having threads of two different pitches. One end of each of the middle sleeve and inner sleeve is drilled and tapped undersize and is slotted to conform resiliently to the threaded shaft. The middle sleeve is attached to a keratome by set screws drawing the middle sleeve into tight contact with the body of the keratome. The adjustable plate in the keratome is attached to the inner sleeve.

REFERENCES:
patent: 3402613 (1968-09-01), Neusel et al.
patent: 4173980 (1979-11-01), Curtin
patent: 4423728 (1984-01-01), Lieberman
patent: 4526171 (1985-07-01), Schachar
patent: 4570489 (1988-06-01), Berkman et al.
patent: 4807623 (1989-02-01), Lieberman

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