A method for performing a cholecystectomy procedure comprises providing an access device having a plurality of ports for reception of instruments. An incision is made in the abdomen of a patient and the access device is mounted to provide access through the incision. A first grasper device is inserted through a first port of the access device, a second grasper device is inserted through a second port of the access device and a dissector is inserted through a third port of the access device. At least a first portion of the gall bladder is detached from surrounding tissue.