Objective To evaluate the security and the reliability of ligating the cystic duct and the cystic ar- tery with common silk suture as the substitute for titanic or biological clamps in laparoscopic cholecystectomy (LC) us- ing the suture and knot instrument developed by the authors. Methods One hundred and two laparoscopic chole- cystectomies were performed by the authors using the instrument. Results All patients were discharged in the post- operative fourth or fifth day without any complication. Conclusion The instrument used for LC was safe and reliable.