Patent ID: 6605054
Filing Date: 2003-08-12
Classification: A61B,A61F

Abstract:
A phaco tip apparatus for a phacoemulsification handpiece having vibration drive assembly, said phaco tip apparatus comprising:a needle having a tip for emulsifying a cataract lens through a cornea/sclera wound; a lumen through the tip and providing a primary aspiration port to the needle for the aspiration of emulsified lens; a sleeve for establishing an annular passage around the needle and enabling irrigation fluid to pass into an eye through the cornea/sclera wound while cooling the needle, said sleeve having a length shorter than a length of the needle; a secondary aspiration port disposed in said needle between the needle end and the sleeve for enabling continued aspiration of emulsified lens upon clogging of the primary aspiration port; and a bypass port, disposed in said needle and under said compressible sleeve, for establishing fluid communication between said lumen and said annular passage in order to enable irrigation fluid to pass into said lumen upon clogging of the primary and secondary aspiration ports.