The invention discloses a jaw direction adjustment mechanism of an
endoscope cutting stapler. The jaw direction adjustment mechanism comprises a joint rotary knob, a rotating head and a bidirectional adjustment
assembly. The bidirectional adjustment
assembly is rotationally arranged in the rotating head and comprises a main
rotating disc, an outer ring, a plurality of elastomers, a plurality of rollers, an inner
planet gear, two pin shafts and two joint push rods. A transmission pin, clamping feet and pulling claws are arranged on the bottom face of the main
rotating disc. A positioning column and a matched boss are arranged on the inner
planet gear. The outer ring is located between the main
rotating disc and the inner
planet gear, the yoke face of an inner hole of the outer ring is matched with the positioning column, the pulling claws, the rollers and the elastomers are sequentially arranged between the yoke face of the inner hole of the outer ring and the matched boss at intervals, the rollers are always attached to the working face of the inner planet gear through the elastomers, and a bidirectional overrunning
clutch locking structure is formed. The function of bidirectionally adjusting a jaw of the stapler through the bidirectional adjustment
assembly is achieved, backswing of the jaw is effectively avoided, operation is easier and saves more labor, and an operator can feel changes of adjustment of the jaw in time.