Posterior capsulotomy knife

Details Posterior capsulotomy knife Posterior capsulotomy knife

1989-01-30

1990-09-11

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

606170, A61F 1732

Patent

active

049558943

ABSTRACT:
A knife for ophthalmic surgery and particularly for posterior capsulotomy procedures comprises a thin, continuously curved shaft having an elongated handle attached at one end thereof. The longitudinal axis of the handle is disposed substantially tangentially to the curved shaft. A blade portion on the opposite end of the shaft terminates in a sharp tip. The shaft tapers from a relatively thick section adjacent the handle to a relatively thin section adjacent the blade portion.

REFERENCES:
patent: 1020753 (1912-03-01), Ford
patent: 1708578 (1929-04-01), Hyde
patent: 1749919 (1930-03-01), Mierley
patent: 2029495 (1936-02-01), Lowe
patent: 2521161 (1950-09-01), Grover
patent: 3600539 (1971-09-01), Miller
patent: 4011870 (1977-03-01), Goldstein
patent: 4244060 (1981-01-01), Hoffer
patent: 4298994 (1981-11-01), Clayman
patent: 4359053 (1982-11-01), Benjamin
patent: 4412359 (1983-11-01), Myers
patent: 4527564 (1985-07-01), Eguchi et al.
The Surgical Armamentarium, American V. Mueller, pp. 510, 513, and 566, 1980.

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