Controlled outflow sleeve

Details Controlled outflow sleeve Controlled outflow sleeve

1998-10-29

2000-01-11

McDermott, Corrine

Surgery

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

With means for cutting, scarifying, or vibrating tissue

604 35, 604 44, 604500, 604119, A61B 1720

Patent

active

060130490

ABSTRACT:
Method and apparatus for removing a natural lens from an eye provides for inserting an infusion cannula into an anterior chamber of an eye and establishing fluid communication into a lens capsule from the anterior chamber. A phacoemulsification needle is inserted into the lens capsule for emulsification of a natural lens while introducing irrigation fluid into the anterior chamber and lens capsule through the infusion cannula. Emulsified lens is aspirated through a lumen in the phacoemulsification needle and a sleeve, surrounding the phacoemulsification needle, enables outflow of irrigation fluid in order to maintain intraocular pressure and cool the phacoemulsification needle.

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