| 摘要 |
A papillotome contains the flexible tube made of the insulating material with the extensible electric knife in the shape of a string with the distal end extended outside and proximal end being equipped with the handle. The distal part of the tube contains the lateral section, 20- in length for extending the electric knife outside. Its distal end, 2- in length, is folded at the angle of 60-70° relative to the external surface of the section. |
