High-position anal fistula postoperative rubber band tightening instrument

The high-position anal fistula postoperative rubber band tightening instrument comprises a main shell, a transparent containing tube is arranged at the end A of the main shell, the outer diameter of the transparent containing tube is smaller than that of the main shell, and a placement ring groove is formed in the end A of the outer wall of the transparent containing tube; a hooking and pulling assembly penetrates through the interior of the main shell in a sliding mode. A main locking assembly is arranged on the side face of the main shell, the main locking assembly is connected with the hooking and pulling assembly located at the locking position in a clamped mode, and a second traction assembly, a base and a grab handle are sequentially arranged at the bottom of the main shell from the end A to the end B; the trigger assembly is rotationally installed on the outer side of the base. An ejection assembly is mounted on the top surface of the main shell; the end A of the outer wall of the transparent containin