#$%^&*AU2006252010B220130124.pdf#####LAPAROSCOPIC APPARATUS FOR PERFORMING ELECTROSURGICAL PROCEDURES ABSTRACT A system and apparatus for irrigating a surgical site during an electrosurgical procedure are disclosed. The system includes a hand piece (12) having an elongated housing connected to a multilumen tube (18) extending proximally from the housing and having an irrigation tube (32) for delivering irrigation fluid, a suction tube (34) for withdrawing irrigation fluid, and electrical wiring, a first controls for adjusting flow of irrigation fluid within the irrigation tube and second controls for adjusting flow of irrigation fluid within the suction tube. A valve cassette is connected to the multilumen tube, which includes an irrigation valve configured to control the flow within the irrigation tube and a suction valve (33) configured to control the flow within the suction tube (34). A hardware control module controls the irrigation valve and the suction valve (33) based on control signals from the first and second controls.2/5 28 12 24 3 22 34 32 36 TO ACTIVE ELECTRODE 14 FIG. 2A TO VACUUM (SUCTION VALVE 44) 233TO IRRIGATION (IRRIGATION VALVE 42) 31 FIG. 2B
