#$%^&*AU2017245367A120171102.pdf#####ABSTRACT A phacoemulsification hand piece comprises a body having a distal end and a proximal end； an ultrasonic tip disposed at the distal end of the body and configured to aspirate an aspiration fluid from a surgical site； a 5 sleeve disposed at the distal end of the body configured to irrigate the surgical site with an irrigation fluid； a removable cartridge disposed in the body and in fluid communication with the ultrasonic tip and the sleeve, wherein the cartridge comprises: an aspiration conduit configured to contain the aspiration fluid； and an irrigation conduit configured to contain the irrigation fluid； and a 10 pump disposed within the body and interfacing with the aspiration conduit and with the irrigation conduit, such that upon activation of the pump, the irrigation fluid within the irrigation conduit flows in a direction towards the sleeve and away from the proximal end, and the aspiration fluid within the aspiration conduit flows in a direction away from the tip and towards the proximal end.
