National Yang-Ming University;Chang Gung Memorial Hospital, Linkou
发明人:
Chun-Li LIN,Po-Liang Lai,Po-Yi LIU
申请号：
US15700739
公开号：
US20180263662A1
申请日:
2017.09.11
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention provides a pedicle screw, which includes a screw head, a screw body, a screw rod and a screw cap. The screw body includes a ball-liked arc-shaped buckle portion and a column-liked thread portion. The screw head includes a semi-sphere part with an arc-shaped dimple on one end and a U-shaped cavity on the other end. The U-shaped cavity connects with the arc-shaped dimple. Furthermore, the Arc-shaped dimple connects with the arc-shaped buckle portion. The Arc-shaped dimple includes an opening on its top to allow the screw body passing through. The U-shaped cavity includes an opening, which includes a female thread to fix the screw rod in the U-shaped cavity by a male thread on the screw cap.
