作者: Dietmar Pennig
DOI:
关键词: Intramedullary rod 、 Engineering drawing 、 Orthodontics 、 Screw head 、 Screw thread 、 Screw 、 Thread (computing) 、 Engineering
摘要: The invention relates to a headed screw for fixing an intramedullary nail in position. An external thread on the shank is provided over all, or part of spaced parts, length shank. head with having direction helical advance which opposite screw-shank thread.