2010YMH

謝佑明 (Yu-Ming Hsieh)

Development of a new suture tying Instrument for laparoscopic surgery

新式腹腔鏡手術打結器之研發

Here a new suture tying instrument for laparoscopic surgery is proposed and design. Because of the narrow abdominal cavity, motions like winding and ligating are hard to perform in traditional intracorporeal tying method .By winding suture out of abdominal cavity, extracorporeal tying method also consumes more operation time and more suture. Therefore, an easy-operative suture tying instrument and method of tying a suture for laparoscopic surgery is developed here. The new suture tying instrument which has dual latched design can pre-tied the square knot out of abdominal cavity in a specific way. The instrument is put into abdominal cavity for operating knot pushing and ligating in coordinate with an assistant grasper. The new suture tying instrument can greatly reduce the difficulty in operating tying procedure rather than intracorporeal tying method. Also the new instrument saves more time and more suture than extracorporeal tying method. Here a simple prototype is built for simulating tying procedure to verify the feasibility of the proposal design.