Title:
Bone anchor assembly
Document Type and Number:
Japanese Patent JP6227655
Kind Code:
B2
Abstract:
A bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, a compression member positioned within the receiver member, and a closure mechanism including an outer set screw and an inner set screw. The outer set screw delivers a distal force to the compression member to fix the bone anchor relative to the receiver member. The proximal surface of the compression member has a shape configured to restrict deformation of the compression member arms including motion of the compression member arms relative to each other. The distal surface of the outer set screw has a shape that is complementary to the shape of the proximal surface of the compression member.
Inventors:
Splat Frank
Kintanilla Ernest
Chandanson Chibo
Kintanilla Ernest
Chandanson Chibo
Application Number:
JP2015534555A
Publication Date:
November 08, 2017
Filing Date:
September 18, 2013
Export Citation:
Assignee:
Medos International SARL
International Classes:
A61B17/70
Domestic Patent References:
| JP2003180707A | ||||
| JP201141802A |
Foreign References:
| US20090216280 |
Attorney, Agent or Firm:
Konobu Kato
Takafumi Oshima
Takafumi Oshima