Surgical apparatus for precisely cutting out the cornea

Details Surgical apparatus for precisely cutting out the cornea Surgical apparatus for precisely cutting out the cornea

1981-07-21

1984-02-07

Thaler, Michael H.

Surgery

Truss

Pad

128305, A61B 1732

Patent

active

044296967

ABSTRACT:
The present invention concerns a trephine for making at least one circular incision on the cornea of an eye. The trephine comprises an external support forming a casing and having a base portion for applying it to the eye, an internal blade carrier which is movable in the support, and a drive mechanism for driving the blade carrier with respect to the support. The blade carrier is driven by the drive mechanism which causes it to screw into and out of the support and the blade is cylindrical, the cutting blade portion being formed by its lower circular edge.

REFERENCES:
patent: 2838050 (1958-06-01), Ara
patent: 3074407 (1963-01-01), Moon et al.
patent: 4205682 (1980-06-01), Crock et al.
patent: 4236519 (1980-12-01), La Russa et al.
patent: 4336805 (1982-06-01), Smirmaul

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