Angulated phacoemulsification needle whose outer surface converg

Details Angulated phacoemulsification needle whose outer surface converg Angulated phacoemulsification needle whose outer surface converg

1998-05-11

2000-03-21

Stright, Ronald

Surgery

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

Treating material introduced into or removed from body...

604 22, 604 27, 606169, A61M 532

Patent

active

060397152

ABSTRACT:
A phacoemulsification apparatus includes a needle that is hollow and terminates in an evacuation port and has a straight portion and a bent or angulated portion spaced from the evacuation port. The needle defines an inner channel that narrows from the evacuation port before, at or beyond the angulated portion. The outer surface of the needle is also configured to converge before, at or beyond the bent or angulated portion. A flexible infusion sleeve surrounds the needle longitudinally along the straight portion of the needle and terminates at an area proximal to or in the vicinity of the angulated portion.

REFERENCES:
patent: 4832683 (1989-05-01), Idemoto et al.
patent: 5154694 (1992-10-01), Kelman
patent: 5743871 (1998-04-01), Strukel et al.
patent: 5830192 (1998-11-01), Van Voorhis

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