Abstract
In this study, we develop the active catheter using peristaltic motion. This active catheter is inserted through an incision in inner surface of the wrist, ankle and femoral in the same manner as normal catheter using in heart surgery. The aim of this study is to develop the mechanism that can approach to coronary artery occluded by thrombosis and expand it. Therefore, the diameter of active catheter must be less than 1mm inside diameter of site of predilection for thrombus, and can move an aorta larger than 30mm inside diameter. We developed the wide range active catheter that can move inside diameter in the range 1 to 2mm, and reach the edge of coronary artery in inside diameter 3mm, the small diameter catheter separate from original shape, and move in coronary artery less than 1mm inside diameter.
