螺钉

Objective:To measure the linear parameters of the cervical pedicles from CT scan, and probe the necessity of the transpedicular screw fixation according to the axis of the cervical pedicle.

目的 ：测量C3～ 7椎弓根各径线的数据，探讨颈椎椎弓根螺钉置钉时按照轴线置入的必要性。

Summary of Background Data. Safety concerns hae drien specific interests in the accuracy and precision of pedicle screw placement.

背景资料概述：由于安全性的关系，使得人们对椎弓根螺钉置钉的准确性和精确度有着特殊的兴趣。

The fixation strength and pull-off strength of the screw-plate constructs were performed initially and after fatigue.

测定其即刻固定强度、抗疲劳强度和钢板螺钉的抗拉出强度。

The pulling out experiment was performed by AGS-10KN material testing machine to measure the maximal axial pulling-out strength of hollow nail and the maximal loading when the nail was loose during anti-bending cycle experiments.

拔出实验在AGS-10KN材料实验机上进行，测定空心钉最大轴向拔出力，以及周期抗屈实验中螺钉松动时的最大负荷。

Relations in accordance with the machines to install the rack assembly components, rack location placed slightly tight after all the connecting screws, adjust the rack so that the eight rack Thread smoothly cylindrical pin penetration, fastening screw connection .

按照机器的装配关系先安装机架组件，机架位置放好后稍带紧所有的联接螺丝，调整机架使机架上的八个内螺纹圆柱销钉都能顺利穿入，紧固连接螺钉。

OBJECTIVE: To observe the methods and results of screw insertion and histocompatibility of host using Kirschner wire plus tapping technique.

目的：以徒手克氏针加叩击法制备胸椎椎弓根钉道，观察螺钉置入的准确性及置入后与宿主的组织相容性反应。

PARTICIPANTS: 129 cases underwent pedicle screw implantation to correct thoracic scoliosis using Kirschner wire plus tapping technique. 103 patients were followed up, including 42 males and 61 females, with a median age of 15.3 years (range 13 to 19 years).

对象：采用徒手克氏针加叩击法制备胸椎椎弓根钉道置入椎弓根螺钉的方法矫正胸椎侧凸畸形129例，其中103例获得随访，男42例，女61例；年龄13~19岁，平均15.3岁。

Top view of wing screw .

翼形螺钉的俯视图。

LH WING PANEL SCREW REMOVED??

左大翼盖板取螺钉。

Can be directly installed in the wall box with cable ducts, or directly installed in the fan coil unit, the supplied mounting screws.

可直接安装于墙上，带电缆导管的盒中，或直接装在风机盘管单元上、随机提供安装螺钉。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。