Ophthalmologic knife

Details Ophthalmologic knife Ophthalmologic knife

2005-06-21

2005-06-21

Dawson, Glenn K. (Department: 3731)

Surgery

Instruments

Cutting, puncturing or piercing

Reexamination Certificate

active

06908471

ABSTRACT:
The present invention relates to an ophthalmologic knife for being guided into an incision formed at an eyeball and for widening the width of the incision, the ophthalmologic knife comprising a handle and a blade portion having a flat shape formed at a end portion of the handle. The blade portion is formed with cutting edges arranged on both sides in a narrowing manner toward a front tip of the blade portion, and the front tip of the blade portion is formed with a guide portion arranged between the two cutting edges for guiding the blade portion into the incision formed at the eyeball.

REFERENCES:
patent: 4185634 (1980-01-01), Freedman
patent: 5201747 (1993-04-01), Mastel
patent: 5258002 (1993-11-01), Jeffers et al.
patent: 5352233 (1994-10-01), Anis
patent: 5713915 (1998-02-01), Van Heugten et al.
patent: 6139559 (2000-10-01), Nordan et al.
patent: 2001/0029386 (2001-10-01), Matsutani et al.

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