Sixty-four patients with rectal cancer were randomly divided into the research group ( @ cases ) to receive laparoscopic assisted rectal cancer resection using ENDO RLC general endoscopic linear cutter and single-use loading unit and circular staplers with staples ( from REACH medical equipment co.LTD ) and the control group ( @ cases ) to receive surgery with the corresponding products widely used ( fom Johnson and Johnson Medical Euipment C.Ltd ) .