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Pedicle screw
专利权人:
Jong Wuk Jang
发明人:
Jong Wuk Jang
申请号:
US11993814
公开号:
US08308773B2
申请日:
2006.12.14
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Disclosed is a pedicle screw. By changing the structure of a threaded portion of a locking bolt engaged with a head of the pedicle screw and forming a groove on the locking bolt, the threaded portion is pressed in a fastening direction of the locking bolt, so that when a head of the pedicle screw is fastened to the locking bolt, a fixation cap is not released by the force applied from the head expanding towards an outside, and thus the locking bolt is easily fastened to the head of a screw body, thereby improving an inefficiency factor such as delay of surgical operation time due to release or interference of the fixation cap.
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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