Improved method and apparatus for reducing friction and heat...

Details Improved method and apparatus for reducing friction and heat... Improved method and apparatus for reducing friction and heat...

A - Human Necessities

61

F

A61F 9/007 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2303355

A surgical instrument for removing tissue, such as a cataract, from a patient's body includes a hollow vibrating needle surrounded by one or two hollow infusion sleeves. Reducing friction between the surface(s) of the sleeve(s) and the outer surface of the needle and/or surrounding ocular tissue dramatically reduces the amount of heat generated during surgery, thus reducing the possibility of thermal damage to tissue.

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