Instrument for surgically correcting astigmatism

Details Instrument for surgically correcting astigmatism Instrument for surgically correcting astigmatism

1991-12-19

1993-10-05

Burr, Edgar S.

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606172, A61B 1732

Patent

active

052500624

ABSTRACT:
The instrument comprises a tubular outer support forming a shell around a determined axis and including a circularly symmetrical annular base portion about the axis defining a substantially spherical annular surface enabling the support to be pressed against the cornea; the support includes a cylindrical inside wall that is resiliently deformable in the radial direction to receive the tubular top section of a template having a transverse wall at its bottom which is delimited by a substantially spherical bottom surface and which includes a central orifice and at least one pair of arcuate slots disposed symmetrically about the center of the wall.

REFERENCES:
patent: 4319575 (1982-03-01), Bonte
patent: 4423728 (1984-01-01), Lieberman
patent: 4429696 (1984-02-01), Hanna
patent: 4526171 (1985-07-01), Schachar
patent: 4619259 (1986-10-01), Graybill et al.
patent: 4688570 (1987-08-01), Kramer et al.
patent: 4815463 (1989-03-01), Hanna
patent: 4985035 (1991-01-01), Torre

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