Tracheal foreign body fetching device

The utility model relates to the field of tracheal foreign body fetching tools, in particular to a tracheal foreign body fetching device. The utility model relates to a tracheal foreign body fetching device, which comprises an outer tube, an inner tube and a connecting tube, the nut is in threaded connection with the end, provided with the conical inclined face, of the outer pipe. The nut is provided with a first through hole which is coaxial with the outer pipe; the length of the inner pipe is larger than that of the outer pipe; the inner pipe penetrates through the first through hole of the nut and is installed in the outer pipe in a sliding mode, and the end, located in the outer pipe, of the inner pipe is provided with an elastic suction cup which is fixedly connected or detachably connected. The center of the elastic sucker is communicated with the inner tube; the other end of the inner tube is a negative pressure interface; an elastic limiting clamping piece fixedly connected with the nut is arranged in