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它由圆球和圆柱两部分组成。The dilator is composed of a circular ball and a circular column.

在进行椎弓根攻丝时，最外面的扩张器可起到保护性套筒的作用。The outermost dilator can be used as a protective sleeve during pedicle tapping.

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结论帮备是一种疗效好，依从性好的支气管扩张剂，能有效控制病情，缩短病程。Conclusion This drug might be good effective bronchi dilator and could control and shorten duration.

引导扩张一体式穿刺针由针体、针芯构成，针体尾端连接扩张器。在临床使用前，先行气管穿刺。The transfixion pin is composed of a pin body, pin core and a dilator connected with the end of pin body.

气管扩张器，属于医疗器械技术领域。The utility model relates to a tracheal dilator which belongs to the technical field of medical apparatuses.

目的探讨输尿管镜联合S形尿道扩张器在男性尿道狭窄治疗中的临床价值。Objective To explore the clinical value of S-shaped coaxial dilator for the treatment of male urethral strictures.

机械式宫颈扩张器，涉及有扩张臂、移动滑道、移动盘和支撑架组成。A mechanical cervical dilator of the utility model comprises dilation arms, movable slide ways, a movable disk and a supporter.

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在输尿管镜引导下，利用高频针状电刀穿刺胃壁，用球囊扩张后导入胃镜。The gastroscope was inserted through a hole on gastric wall, which was made using a needle knife and dilator under ureteroscopy.

方法采用扩张器扩张正常头皮，扩张完成后，彻底切除瘤体，转移扩张皮瓣，一期手术完成缺损的修复治疗。Methods Use of dilator to expand epicranium, the neoplasia was excised after the dilatation and completely repaired by one-stage operation.

本实用新型涉及眼科小型手术器械，尤其是一种眼肌锥扩张器。The utility model relates to a small-sized surgical instrument for the department of ophthalmology, particularly an eye muscle cone dilator.

本发明的技术方案，既不影响外观又能协助治疗，真正使扩张器用途最大化。The technical proposal of the invention can assist treatment without influencing the appearance, and can maximize the purpose of the dilator actually.

在人体温度时即可恢复原设计形状，起到扩张、支撑、引流作用。Under the human body temperature, the dilator can restore the original shape which is designed and has the effects on the dilatation, the support and the drainage.