The utility model relates to the technical field of ERCP operations, and discloses a calculus removing mesh basket
assembly facilitating opening of a nipple opening. Comprising a
beam tube, a movable lead screw, a mesh basket body, a fixed
handle and a movable
handle, wherein the movable lead screw is located in the
beam tube, and the two ends of the movable lead screw penetrate out of the
beam tube; the mesh basket body is arranged at the end of the movable lead screw; the fixed
handle is arranged at the end, away from the mesh basket body, of the beam tube; a guide
pipe extending in the beam tube direction is arranged on the outer wall of the beam tube, a hollow guide wire with the two ends penetrating out of the guide
pipe is arranged in the guide
pipe, a bent part used for being embedded into a nipple opening is integrally arranged at the end, close to the mesh basket body, of the hollow guide wire, and air bags used for expanding the nipple opening are arranged on the two sides of the bent part. An inflation
nozzle used for being externally connected with inflation equipment is arranged at the end, away from the bent part, of the hollow guide wire, and when the two air bags are in an inflation state, the two air bags are in a V shape in the nipple opening, and a gap allowing the net basket body to penetrate through is formed in the middle of the two air bags.