Sectioning device for lamellar surgery

Details Sectioning device for lamellar surgery Sectioning device for lamellar surgery

1993-08-20

1994-08-30

Burr, Edgar S.

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606167, 606169, A61F 900

Patent

active

053423780

ABSTRACT:
A keratome is machined from a single block of material to form front and back portions that cannot become distorted during use. The blade is held at a reduced angle and a surface defining a chamber for receiving the slice intersects the blade at a tangent. The adjustable plate overlaps the blade a predetermined amount. The lower edge of the plate, adjacent the blade, is shaped for an improved cut, as is the blade itself. The suction ring is laser welded to avoid distortion of the channel for the keratome and an applanator is shaped to prevent relative motion of the applanator along the channel.

REFERENCES:
patent: 4180075 (1979-12-01), Marinoff
patent: 4429696 (1984-02-01), Hanna
patent: 4662370 (1987-05-01), Hoffman et al.
patent: 4750491 (1988-06-01), Kaufman et al.
patent: 4763651 (1988-08-01), Kaufman et al.
patent: 4796623 (1989-01-01), Krasner et al.
patent: 4807623 (1989-02-01), Liebermann
patent: 4884570 (1989-12-01), Krumeich et al.
patent: 5133726 (1992-07-01), Ruiz et al.

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