Fixation ring for radial keratotomy

Details Fixation ring for radial keratotomy Fixation ring for radial keratotomy

1987-12-11

1989-07-04

Hindenburg, Max

Surgery

Truss

Pad

A61B 1700

Patent

active

048440604

ABSTRACT:
Instead of having the surgeon make cuts freehand in a radial keratotomy operation for correction of the refraction of the human cornea, there is provided a fixation ring which has an eccentrically located band or bridge, the side of which is toward the middle of the ring is formed as a vertical, planar positioning and guide surface, extending vertically with respect to the plane of the ring. This bridge can be mounted on the ring itself or fastened onto an inner ring that is freely rotatable with respect to an outer ring. Means for limiting the depth of the cut may also be provided. This makes it easier to obtain straight and regular cuts in the desired radial direction. Operations can be completed more quickly, and there is a better prognosis for obtaining the desired results in the operation.

REFERENCES:
patent: 2437812 (1948-03-01), Freel
patent: 4275733 (1981-06-01), Mirinoff
patent: 4406285 (1983-09-01), Villasener et al.
patent: 4440168 (1984-04-01), Warren
patent: 4542742 (1985-09-01), Winkelman et al.
patent: 4688570 (1987-08-01), Kramer et al.
patent: 4739761 (1988-04-01), Grandon

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