Pair of superfine sampling forceps for endoscope

The utility model relates to medical equipment. The superfine sampling clamp comprises a clamp head, a clamp head frame, a connecting rod mechanism, an outer pipe, an inhaul cable and a handle shell,the clamp head is fixedly connected to the front end of the connecting rod mechanism, the connecting rod mechanism is movably connected to the front portion of the clamp head frame, the rear end of the connecting rod mechanism is movably hinged to the front end of the inhaul cable, and the rear end of the inhaul cable is fixedly connected with a movable ring; according to the utility model, the single-circle cross section of the spring tube of the outer tube is arranged to be the transversely arranged ellipse, so that the inner diameter of the outer tube can be increased under the condition ofensuring that the outer diameter of the outer tube is not increased, the clamping force of the tong head part is increased, and the situation that the pull rope is broken due to overlarge pull forceis greatly reduced; and mea