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1976年起Causse对耳硬化症采用的术式为:于镫骨足板后1/3处,以直径0.7mm的金刚石钻头作成约0.8mm大小的一孔,藉较大静脉片覆盖整个前庭窗,由0.4mm直径的聚四氟乙烯活塞连于砧骨长脚以恢复传音功能。该法的优点为①与鼓膜面积相比,0.8mm的窗孔很小,有利于高频音传送。②其面积又足以使活塞倾斜时亦不与窗周摩擦,有利于低频和中频音传送。③活塞加静脉片形成类似扬声器膜片的一圆锥状外形,既无淋巴液外溢,又具理
Causse since 1976 on otosclerosis used in the surgical procedure is: 1/3 at the stapes foot plate, with a diameter of 0.7mm diamond drill made about a hole size of 0.8mm, by a large venous slice covering the entire vestibular window , By the 0.4mm diameter polytetrafluoroethylene piston attached to the incus long feet to restore acoustic function. The advantages of the method ① compared with the tympanic membrane area, 0.8mm window is small, is conducive to high-frequency audio transmission. ② its area is enough to make the piston tilt when not with the window friction, is conducive to low-frequency and intermediate frequency transmission. ③ piston and vein form similar to the speaker diaphragm a conical shape, neither lymph overflow, but also reasonable