The needle bar running with needle bar frame, no need to add extra lube and avoid the materials be soiled by lube.
针排运动采用针杆架机构，无需另外加油，从而避免了油污面料的现象发生。
2
The utility model relates to a special external fixation of fracture device used for treating fracture. The device comprises a bone needle for bone piercing and a frame for fixing the bone needle.