Abstract: Disclosed is a clamp device used in cooperation with an endoscope. A clamping portion of the clamp device comprises clamping pieces, a clamp tube, a clamping piece fixing seat and a connecting tube, wherein the clamping piece fixing seat is arranged in the clamp tube and can move forwards and backwards; the connecting tube is fixed at the rear end of the clamping piece fixing seat; the tails of the two clamping pieces are accommodated in the clamp tube, and the tails of the clamping pieces are movably connected to the front end of the clamping piece fixing seat by means of a deformation hole; stopping steps are arranged on an inner wall of the tail of the clamp tube.

Abstract: A medical forceps includes a handle, a traction string, a sleeve tube, a forceps base, a push-pull rod, two connecting members and two forceps jaws. The sleeve tube is connected to the forceps base. The traction string passes through the flexible spring tube and the forceps base, one end of the traction string is connected to the handle, and the other end thereof is connected to the push-pull rod. Middle parts of the two forceps jaws are hinged by a hinge shaft mounted on the forceps base. A lower part of the forceps jaw is hinged to one end of the respective connecting member, and the other end of the connecting member is hinged to the push-pull rod. The push-pull rod has two hinge centers for being respectively hinged to the two connecting members arranged in a crossed manner. The push-pull rod has two hinge centers.

Abstract: A medical forceps includes a handle, a traction string, a sleeve tube, a forceps base, a push-pull rod, two connecting members and two forceps jaws. The sleeve tube is connected to the forceps base. The traction string passes through the flexible spring tube and the forceps base, one end of the traction string is connected to the handle, and the other end thereof is connected to the push-pull rod. Middle parts of the two forceps jaws are hinged by a hinge shaft mounted on the forceps base. A lower part of the forceps jaw is hinged to one end of the respective connecting member, and the other end of the connecting member is hinged to the push-pull rod. The push-pull rod has two hinge centers for being respectively hinged to the two connecting members arranged in a crossed manner. The push-pull rod has two hinge centers.

Abstract: A multi-function high-frequency tool for an endoscope, comprising an insert portion and a handle portion, the insert portion comprising an insulating tip, a first electrode having a needle-knife function, a second electrode having an IT-knife function, and a spray head; the handle portion comprising a first slider, a connector, an injection connector, and a second slider. The second electrode has a hollow structure, and the first electrode extends through the second electrode; the proximal end of the first electrode is fixedly connected by means of a mandrel connecting member to the distal end of a mandrel; the proximal end of the mandrel is connected to the first slider of the handle portion, and moves axially on the handle portion by means of the first slider, thereby causing the first electrode to expose from/retract into the second electrode.

Abstract: A multi-function high-frequency tool for an endoscope, comprising an insert portion and a handle portion, the insert portion comprising an insulating tip, a first electrode having a needle-knife function, a second electrode having an IT-knife function, and a spray head; the handle portion comprising a first slider, a connector, an injection connector, and a second slider. The second electrode has a hollow structure, and the first electrode extends through the second electrode; the proximal end of the first electrode is fixedly connected by means of a mandrel connecting member to the distal end of a mandrel; the proximal end of the mandrel is connected to the first slider of the handle portion, and moves axially on the handle portion by means of the first slider, thereby causing the first electrode to expose from/retract into the second electrode.