Irrigation/aspiration tip

Details Irrigation/aspiration tip Irrigation/aspiration tip

1984-08-23

1986-03-04

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604275, 604 35, A61M 5325

Patent

active

045739790

ABSTRACT:
In an irrigation/aspiration, surgical instrument for intraocular eye surgery, an inner cannula provides aspiration while a larger, but coaxially-spaced outer cannula provides irrigation. The outer cannula is made of metal but is connected to the tip of the surgical instrument by a flexible, silicon rubber support so that the outer cannula is relatively flexible compared to the stiffness of the cannula. Thus the outer cannula can be rotated or repositioned without distortion since all of the motion is localized at the flexible support.

REFERENCES:
patent: 3439675 (1969-04-01), Cohen
patent: 3884231 (1975-05-01), Peters
patent: 3906954 (1975-09-01), Baehr et al.
patent: 3968796 (1976-07-01), Baker
patent: 4397640 (1983-08-01), Haug et al.
patent: 4402684 (1983-09-01), Jessup

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