脊柱旁的

Results The angle, depth and time of centesis in improved way group obviously decreased as compared with direct and indirect way groups.

结果 改良法在穿刺过程中针干与脊柱所形成的角度，进针的深度比直入法和旁入法明显减小，穿刺所用的时间也相应减少。

In this paper, the positive points paravertebral specificity for diagnosis of certain diseases were summarized by the Tianjin Beichen District Science and Technology Project,"the arrangement and research of Diagnostics by spine examining", combined with years of clinical observations. We took a preliminary approach for diagnosis and treatment of pine-related diseases by the positive points as an entrance.

本文以天津市北辰区科技计划项目《脊诊诊法的整理与研究》为基础，结合多年临床观察，将椎旁阳性点对某些疾病的特异性诊断进行了总结，并以此做为切入点对脊柱相关疾病的诊治进行初步探讨。

Methods Fourteen adult cadaver specimens of cervical spine（C3～C7）with intact structures including ligaments and perivertebral muscles were reserved and used.

随机取14具福尔马林浸泡的成人颈椎标本（C3～C7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。

Abstract］ Objective To explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.Methods Fourteen adult cadaver specimens of cervical spine（C3～C7）with intact structures including ligaments and perivertebral muscles were reserved and used.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性方法随机取14具福尔马林浸泡的成人颈椎标本（C3～C7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。

Abstract］ objective to explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.methods fourteen adult cadaver specimens of cervical spine（c3～c7）with intact structures including ligaments and perivertebral muscles were reserved and used.according to the radiographic measurements,safety drill was inserted into cervical pedicle individually.the evaluation of the drill's trajectory was carried out by ct scan and three-dimension reconstruction and autopsy.results one hundred and forty drill's trajectories were made.9 holes failed with a perforation rate of 6.4%.conclusion the safety drill prepared for cervical pedicle screw hole is safe and effective and can be applied and popularized clinically.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性。方法随机取14具福尔马林浸泡的成人颈椎标本（c3～c7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。选用安全钻头，进行实际的颈椎弓根螺钉孔道的钻探，将孔道行ct扫描，并斜位三维重建孔道形态，并以肉眼直视观察结果为金标准，评价孔道钻探的成败。结果钻探孔道准确率89.3%（125/140），穿孔率6.4%（9/140）。结论安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性均较高，可以在临床上推广使用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐