Surgical knife production method

Details Surgical knife production method Surgical knife production method

2008-04-15

2008-04-15

Bryant, David P. (Department: 3726)

Metal working

Burnishing

By shot peening or blasting

C029S557000, C606S166000, C606S172000, C030S353000

Reexamination Certificate

active

07356898

ABSTRACT:
A method for producing a surgical knife of a very small size for use in ophthalmic surgery under a microscopic environment having a sharp edge without causing reflection of lights. The surgical knife comprises a handle, and a blade attached to the handle. The blade has a sharp polished cutting edge, a rough machined surface provided inside of the cutting edge having a relatively rough surface area, and an inner flat area. An anti-reflection treatment is provided on an upper and lower surfaces of the blade except for the cutting edge, thereby prohibiting reflection or emission of lights from the knife.

REFERENCES:
patent: 4126136 (1978-11-01), Auth et al.
patent: 4674498 (1987-06-01), Stasz
patent: 5222965 (1993-06-01), Haughton
patent: 5352233 (1994-10-01), Anis
patent: 5718708 (1998-02-01), Webb
patent: 2002/0083598 (2002-07-01), Julien
patent: WO97/29892 (1997-08-01), None

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