| 摘要 |
<p>Apparatus (10) for the phacoemulsification of lens tissue (12) includes a first needle (14) for introducing irrigation fluid (18) into a lens capsule (20) and a second ultrasonically vibrated needle (32) for inserting into the lens needle (20) and emulsifying the lens tissue therein. The second needle (32) includes a lumen (42) therethrough for aspiration of emulsified lens tissue and irrigation fluid from the lens capsule through a primary aspiration port defined by an end of the lumen. At least one secondary aspiration port (54, 56, 64, 66) is disposed in the second needle (32) in a spaced apart relationship with the primary aspiration port for introducing emulsified lens and irrigation fluid into the lumen.</p> |
