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Torque drivers for headless threaded compression fasteners
专利权人:
Wright Medical Technology; Inc.
发明人:
Wong, Kian-Ming,Lowery, Gary,Armacost, Scott A.
申请号:
AU2014331639
公开号:
AU2014331639A1
申请日:
2014.10.06
申请国别(地区):
AU
年份:
2016
代理人:
摘要:
#$%^&*AU2014331639A120160421.pdf#####TORQUE DRIVERS FOR HEADLESS THREADED COMPRESSION FASTENERS Abstract A threaded-shaft or fastener such as a headless bone screw, intramedullary support or the like, has a tool-receiving structure on the axial end of an externally threaded proximal end for application of torque directly to the fastener. A cannulated cap nut with internal threads complementary to the thread on the shaft can be jammed on the shaft in a tightening direction, allowing driving torque to be applied to the shaft through the cap nut for driving the fastener into a work material such as bone tissue. When the fastener has been driven to bring the cap nut up to the work material, torque is applied between tools in the fastener and cap nut, and then to the fastener alone, unjamming and advancing the fastener such that the proximal end of the fastener can be embedded in the bone tissue. The fastener is advantageously a headless bone compression screw.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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