Aiming at the effect of unknown noise that influences the yarn tension signal in real time acquisition and causes the inaccuracy of the quality evaluation and error in the real time yarn tension control,the Butterworth digital filter which is a traditional low-pass filter is proposed in the paper to separate the noise of the yarn tension signal.

Application of Data Analysis Technique on the Yarn Tension Calculation;

Objective To explore the security and the feasibility of ligating the cystic duct and the cystic artery with silk suture as the substitute for titanic or biological clamps in laporoscopic cholecystectomy (LC), and evaluate the clinical applications of the multifunctional holding forceps for laparoscopy developed by the authors.

Internal fixation with silk suture binding and shape-memory alloy tension claw for comminuted patellar fracture;

Objective To explore the safety and feasibility of using ordinary silk thread to ligate cystic duct and cystic artery in three-port laparoscopic cholecystectomy.

Aim To compare the effects of the chronic constriction injury of the sciatic nerve(CCI) models constricted by chorda chirurgicalis,silk thread and PE90 cuff in rats.

Objective To compare the clinical efficacy between the ordinary silk thread and the titanium clip for ligating appendiceal artery and appendix base in laparoscopic appendectomy(LA).