| 摘要 |
A phacoemulsification apparatus includes a needle (20) that is hollow and terminates in an evacuation port (12) and has a straight portion (20) and a bent or angulated portion (14) spaced from the evacuation port. The needle defines an inner channel (16) that narrows from the evacuation port (12) before, at or beyond the angulated portion (14). The outer surface (18) of the needle is also configured to converge before, at or beyond the bent or angulated portion (14). A flexible infusion sleeve (20) surrounds the needle (10) longitudinally along the straight portion (20) of the needle (10) and terminates at an area proximal to or in the vicinity of the angulated portion.
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