The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2021
Filed:
Mar. 10, 2021
Yun-da LI, Taoyuan, TW;
Ching-lung Tai, Taoyuan, TW;
Po-liang Lai, Taoyuan, TW;
Tsung-ting Tsai, Taoyuan, TW;
Ming-kai Hsieh, Taoyuan, TW;
Mu-yi Liu, Taoyuan, TW;
Yun-Da Li, Taoyuan, TW;
Ching-Lung Tai, Taoyuan, TW;
Po-Liang Lai, Taoyuan, TW;
Tsung-Ting Tsai, Taoyuan, TW;
Ming-Kai Hsieh, Taoyuan, TW;
Mu-Yi Liu, Taoyuan, TW;
CHANG GUNG UNIVERSITY, Taoyuan, TW;
Abstract
A dual-trajectory pedicle screw system includes an internally threaded sleeve and including first part and cylindrical second part, the first part being recessed to form a space, and the second part including projections on top; a main screw including a universal head and a first conic member, the universal head including first and second threaded holes, the first threaded hole being inclined at a first angle, the second threaded hole being inclined at a different second angle, bottom of the universal head being a convex and rotatably disposed in the space; and an auxiliary screw including external threads threadedly secured to the first or second threaded hole so that the auxiliary screw is secured to the main screw at the first or second angle with respect to the main screw, a second conic member extending downward from the external threads, and a fitting member on top of the external threads.