公开(公告)号：US20140330314A1

公开(公告)日：2014-11-06

申请号：US14336728

申请日：2014-07-21

Applicant: Industrial Technology Research Institute

Inventor： Yang-Hwei Tsuang ,  Chun-Jen Liao ,  Huang-Chien Liang ,  Shih-Jui Han ,  Fon-Yih Tsuang ,  Chang-Jung Chiang

IPC: A61B17/70

CPC classification number: A61B17/7002 ,  A61B17/1671 ,  A61B17/1757 ,  A61B17/7032 ,  A61B17/7085 ,  A61B17/7089 ,  A61B17/7091 ,  A61B17/8863 ,  A61B2090/037

Abstract: A spinal fixation assembly including a pedicle rod and pedicle screws which secure the pedicle rod to the spine. Each pedicle screw includes a head configured to receive a portion of the pedicle rod, and a threaded portion extending from a first end of the head and configured to engage a vertebra. The pedicle rod is secured to the head by a fastener. The head includes a breakaway region that defines a location in which at least a first portion of the head can be easily separated from the remainder of the head upon application of sufficient force to the first portion.

Abstract translation: 脊椎固定组件，其包括将椎弓根杆固定到脊柱的椎弓根杆和椎弓根螺钉。 每个椎弓根螺钉包括构造成接收椎弓根杆的一部分的头部，以及从头部的第一端延伸并被配置为接合椎骨的螺纹部分。 椎弓根杆通过紧固件固定到头部。 头部包括一个分离区域，该区域限定了一个位置，其中当对第一部分施加足够的力时，头部的至少第一部分可以容易地与头部的其余部分分离。