Automatic corneal shaper

Details Automatic corneal shaper Automatic corneal shaper

1990-02-14

1992-07-28

Thaler, Michael H.

Surgery

Instruments

Corneal cutter or guide for corneal cutter

A61B 1732

Patent

active

051337266

ABSTRACT:
The invention relates to a mechanical device for performing automatic lamellar corneal resections, in particular, myopic keratomileusis-in-situ and Hyperopic Lamellar Keratotomy. The device includes three major components, a motor and transmission assembly, a shaper head assembly and an eyeball retaining ring. The motor and transmission assembly includes a flexible shaft with a threaded end which is rotated by an electric or turbine motor. The threaded end of the shaft drives a helicoidal pinion on the shaper head assembly which changes the shaft direction by 90.degree.. The shaper head assembly is moved across the rack of the eyeball retaining ring by a series of pinions. The device provides a means for automatically, precisely and safely performing corneal resections.

REFERENCES:
patent: 4173980 (1979-11-01), Curtin
patent: 4660556 (1987-04-01), Swinger et al.
patent: 4662370 (1987-05-01), Hoffman et al.
patent: 4665914 (1987-05-01), Tanne
patent: 4674503 (1987-06-01), Peyman et al.
patent: 4688570 (1987-08-01), Kramer et al.
Steinway Instrument Company, Inc., The Steinway/Barraquer In-Situ Microkeratome Set.

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