Keratoscopic surgical instrument for making radial and arcuate c

Details Keratoscopic surgical instrument for making radial and arcuate c Keratoscopic surgical instrument for making radial and arcuate c

1995-12-19

1997-05-06

Buiz, Michael Powell

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606167, A61B 1732

Patent

active

056265948

ABSTRACT:
An incision guide instrument for radial keratotomy has a lens positionable over a cornea, containing an incision guide slot adjacent to which is disposed two mirror surfaces within the lens. The mirrors are angled to allow a surgeon to observe and control the blade depth penetration into the cornea. The slotted, mirrored lens is rotatable and has clip and notch means to locate any of sixteen different radial incision positions. Transverse arcuate cuts are also allowed by the rotatable lens, and a stop means prevents the transverse cuts from contacting the radial cuts. An annular cone disposed over the sclera defines a vacuum chamber for holding the eye in position relative to the lens.

REFERENCES:
patent: 4744362 (1988-05-01), Grundler
patent: 4750489 (1988-06-01), Berkman et al.
patent: 4768509 (1988-09-01), Grosvenor et al.
patent: 5447517 (1995-09-01), Steen et al.

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