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Patent Searching and Data


Title:
EXTERNAL FIXATION LOCKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/071105
Kind Code:
A1
Abstract:
An external fixation locking device comprises: a bolt (1), a spring (2), a spherical washer (3), a top piece (4), a middle piece (5), and a tube locking bottom piece (6). The top piece (4) is a tube locking top piece (41) or a pin locking top piece (42). A rod of the bolt (1) passes through the spring (2), the spherical washer (3), the top piece (4), the middle piece (5), and the tube locking bottom piece (6) sequentially, and the axis of the spring (2), the spherical washer (3), the top piece (4), the middle piece (5), and the bottom piece (6) is aligned with the axis of the bolt (1). The spring (2), the spherical washer (3), the top piece (4), the middle piece (5), and the tube locking bottom piece (6) are sequentially fixed by the connection of the rod and the tube locking bottom piece (6). The spring (2) is disposed near a nut of the bolt (1). The external fixation locking device reduces distortion and deformation of the bolt (1), lowers pin deformation resulting from an internal stress generated by a shift of the pin, eliminates the restriction on pin angle arrangement, and reduces the internal stress.

Inventors:
MA KE (CN)
Application Number:
PCT/CN2016/000047
Publication Date:
May 04, 2017
Filing Date:
January 22, 2016
Export Citation:
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Assignee:
MA KE (CN)
International Classes:
A61B17/60
Foreign References:
CN204446065U2015-07-08
CN203029364U2013-07-03
CN201870711U2011-06-22
CN201040011Y2008-03-26
CN202235619U2012-05-30
CN201558158U2010-08-25
CN202263043U2012-06-06
RU2140223C11999-10-27
Attorney, Agent or Firm:
BEIJING SHENGFENG LAW FIRM (CN)
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