Circular stapler with audible indicator

A circular stapler comprising:

• an instrument body;
• a handle assembly movably connected to the instrument body;
• and
• a staple pushing rod disposed in the instrument body, wherein the staple pushing rod has an initial position and a firing position, and the staple pushing rod is capable of being pushed to the firing position, by the handle assembly, from the initial position;
• characterized in that, the circular stapler further comprising:
• an indicator, a strike part and a pulling sheet disposed in the instrument body, wherein the indicator is rotatably connected to the instrument body and provided with a protruding portion, and the handle assembly is provided with a pulling sheet contact portion;
• when the circular stapler is in an initial state, a first end of the indicator is in a first position area and located correspondingly to the strike part;
• when the circular stapler is in a firing state, the pulling sheet pulls the protruding portion and drives the first end of the indicator to move to a second position area and away from the strike part;
• as the firing state progresses, pushed up by the pulling sheet contact portion, the pulling sheet is separated from the protruding portion, then after the circular stapler being fired, the first end of the indicator returns to the first position area from the second position area, strikes the strike part and emits a strike sound.