Chang Gung University

Chang Gung Memorial Hospital, Linkou

Ming Chi University of Technology

First Hi-tec Enterprise Co., Ltd.

Tsung-Ting Tsai

Ming-Kai Hsieh

Ching-Shan Chang

Po-Liang Lai

Ching-Lung Tai

Chih-Chung Hu

Yun-Da Li

Kun-Tao Tang

Mu-Yi Liu

Chien-Lin Chen

A circuit board comprises a substrate with opposite first and second sides. A pair of plated through holes (PTHs) extends along z-axis. A pair of signal traces are made on the first side of the substrate and electrically coupled to the pair of the PTHs respectively to form a differential pair. A ground metal is made on the second side of the substrate, the ground metal has a clearance made therein. The ground metal extends fully overlapping with the full signal traces to eliminate reflection noise caused by a boundary between the clearance and the metal ground.

Noise suppression structure for differential pair

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.

Dual-trajectory pedicle screw system for improvement of fixation stability

A guiding apparatus for pedicle screws insertion, including: two orientation rods, used to be fixed on a bone to provide two non-parallel rod bodies; an orientation board, having a first orientation tube, a second orientation tube, a lengthy lateral opening, and a plurality of sleeve combinations, the second orientation tube having a vertical opening connected with the lengthy lateral opening, so that when one rod body of the two non-parallel rod bodies passes through the first orientation tube, the other rod body of the two non-parallel rod bodies will move through the lengthy lateral opening and enter the second orientation tube via the vertical opening; and a plurality of metal pins, used to be inserted into the bone through the plurality of sleeve combinations, and guide a plurality of pedicle screws to be screwed into the bone after inner sleeves of the sleeve combinations are removed.

Guiding apparatus for minimally invasive pedicle screws insertion

Growing community of inventors

Taoyuan, Taiwan

Tsung-Ting Tsai