抄録
Although radiofrequency catheter ablation (RFCA) is a minimally invasive treatment for restoring the heart rhythm to normal, it is difficult for surgeons to prevent puncture of heart tissue by the catheter tip. The purpose of this study was developing an active catheter for RFCA preventing tissues from puncture. This paper describes the results of the friction characteristics of inferior vena cava. The friction coefficient of inferior vena cava was related to normal force and slip speed. As normal force increased, static friction coefficient and dynamic friction coefficient was decreased. On the other hand, as slip speed increased, static friction coefficient and dynamic friction coefficient was also increased. Therefore, we found that consideration of the normal force and slip speed dependency was necessary for catheter control.
