Infusion sleeve

Details Infusion sleeve Infusion sleeve

2005-12-28

2009-10-13

Lucchesi, Nicholas D (Department: 3763)

Surgery

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

With means for cutting, scarifying, or vibrating tissue

Reexamination Certificate

active

07601136

ABSTRACT:
An infusion sleeve for use with a phacoemulsification handpiece has a hollow body with an open end by which the sleeve is attachable to the handpiece and an open tip through which a phacoemulsification needle is passed. Irrigating liquid is directed from the handpiece through the sleeve. At least three discharge ports are formed in the sleeve to provide increased flow of irrigating liquid proximate the sleeve tip. The ports may differ in size, shape and positioning on the sleeve. Internal reinforcing ribs are provided to limit contact between the thinner portions of the sleeve wall and the phacoemulsification needle. External ridges are provided to limit leakage through the incision. A sleeve with an oval cross-sectional configuration is also provided to limit leakage through the incision. These features may be combined to provide sleeves with desired characteristics.

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