Penetrating keratoplasty trephination press

Details Penetrating keratoplasty trephination press Penetrating keratoplasty trephination press

1990-05-07

1992-03-03

Rosenbaum, C. Fred

Surgery

Instruments

Corneal cutter or guide for corneal cutter

A61B 1716

Patent

active

050928740

ABSTRACT:
An instrument for facilitating the accurate trephination of donor corneal tissue. The instrument can easily accommodate different sizes of trephines and provides for proper and accurate positioning of the donor tissue to ensure a proper central cut of the tissue. The instrument utilizes an integral base and stand that supports a moveable piston which drives the trephine through the tissue carried by a cutting block supported on the base.

REFERENCES:
patent: 3058471 (1962-10-01), Shope
patent: 4077411 (1978-03-01), Ward
patent: 4190050 (1980-02-01), Bailey
patent: 4236519 (1980-12-01), La Russa et al.
patent: 4319575 (1982-03-01), Bonte
patent: 4416278 (1983-11-01), Miller
patent: 4660556 (1987-04-01), Swinger et al.
patent: 4718420 (1988-01-01), Lemp
patent: 4744362 (1988-05-01), Grundler

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