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一、装备 (一)吸管及吸器本装置系由软塑料吸管和吸引用的注射器组成。吸管通常称之为Karman管,直径小,顶端呈圆形,通常不需扩张宫颈即可插入宫腔。靠近吸头端的两侧有两个三角形槽口,借以吸出官腔内容。当吸头触及宫底后,能自行弯曲,而不致堵塞两侧的洞口,可继续吸出宫腔内容,同时也不易引起子宫穿孔(图1)。这种无损伤性器械,可安全地用于停经50天内的妇女行吸引流产。软塑料吸管与金属吸管相比较,有如下优点: 1、软塑料吸管是透明的,术者可以在直视下观察到宫内容
First, the equipment (a) suction tube and suction device The device is made of soft plastic suction tube and suction syringe. Straws, commonly known as Karman tubes, have a small diameter and a rounded top. They are usually inserted into the uterine cavity without expanding the cervix. There are two triangular notches on both sides near the tip to draw the contents of the chamber. When the tip touches the palace base, can bend on their own, without blocking the openings on both sides, can continue to suck the contents of the uterine cavity, but also not easy to cause uterine perforation (Figure 1). This nondestructive device is safe for women who have amenorrhea within 50 days to induce abortion. Soft plastic pipette compared with the metal pipette, has the following advantages: 1, soft plastic pipette is transparent, the surgeon can observe the palace under direct vision