Tubular apparatus for endoscopic surgery

The invention relates to a tubular apparatus for endoscopic surgery. The tubular apparatus comprises a jaw and a handle; a straight rod is arranged between the jaw and the handle; the straight rod has a hollow tube shape, and is internally provided with a traction steel wire; the jaw comprises an upper jaw unit and a lower jaw unit; the lower jaw unit is fixed to one end of the straight rod; the upper jaw unit is movably connected to the straight rod; one end of the traction steel wire is connected to the handle; the other end of the traction steel wire is connected to the upper jaw unit; and the traction steel wire can drive the upper jaw unit to open or close relative to the lower jaw unit. The tubular apparatus is simple in structure, is skillful in design, and is convenient to use. The traction steel wire in the straight rod can drive the jaw to open or close and can rapidly adjust the jaw to an appropriate angle, so that secondary damage to the cut as moving angles of other parts of the tubular apparatus are too large can be avoided. The diameter of the straight rod is relatively small, so that the cut in the endoscopic surgery is relatively small, and the recovery of a patient is facilitated.