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鼓膜穿孔修补物的基本要求是:固定于残存的声传导结构上;有良好的可塑性、声屏蔽性、生物和化学惰性;可消毒;炎症加重时不损伤;可更换。作者以凹形聚合物膜作人工鼓膜。选例条件为听骨链活动好,有槌骨柄,干燥性穿孔;在语言频段听力损失超过25dB;无胆脂瘤性病变。共研究22例,在安置人工鼓膜前,均先作放置油质棉片贴补试验。操作时,往槌骨柄上套上一个不锈钢制的磁性铁环,把
Tympanic membrane perforation repair the basic requirements are: fixed to the residual acoustic conduction structure; have good plasticity, sound shielding, biological and chemical inertness; sterilizable; inflammation does not damage when aggravated; can be replaced. The author uses a concave polymer film as an artificial tympanic membrane. Selection conditions for the activities of the ossicular chain is good, with a hammer handle, dry perforation; hearing loss in the language band more than 25dB; no cholesteatoma lesions. A total of 22 cases of study, before the placement of artificial tympanic membrane, were first placed oil-based cotton patch test. Operation, the hammer handle to put a stainless steel magnetic ring, put