Universal automated keratectomy apparatus and method

Details Universal automated keratectomy apparatus and method Universal automated keratectomy apparatus and method

1995-05-16

1997-11-25

Lewis, William

Surgery

Instruments

Corneal cutter or guide for corneal cutter

A61B 1732

Patent

active

056906579

ABSTRACT:
A surgical device for altering the curvature of an eye includes a base which carries a transparent insert, a drive device, a knife edge coupled to the drive device and movable to a plane immediately adjacent the under surface of the transparent insert. The transparent insert includes a face having a surface portion shaped according to a predetermined correction. The base further includes a suction ring which forms a vacuum chamber with the eye. The suction ring is placed against the eye. Application of vacuum results in the cornea of the eye being urged into engagement with the shaped surface portion. Actuation of the drive device moves the knife edge whereby the cornea is cut. Only the knife edge traverses the insert.

REFERENCES:
patent: 4662370 (1987-05-01), Hoffmann et al.
patent: 5133726 (1992-07-01), Ruiz et al.
patent: 5496339 (1996-03-01), Koepnick

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