| 摘要 |
A surgical instrument for removing tissue, such as a cataract, from a patient's body includes a hollow vibrating needle (16) surrounded by one or two hollow infusion sleeves (18). Reducing friction between the surfaces of the sleeves and the outer surface of the needle (16), and/or surrounding ocular tissue, dramatically reduces the amount of heat generated during surgery, thus reducing the possibility of thermal damage to tissue.
|
