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A.對(duì)于深耳道式助聽(tīng)器棉障放置深度要達(dá)到第二彎曲以上2-3mm
B.材料填充順序從外耳道口依此為耳甲腔、三角窩、耳甲艇
C.注射材料混合時(shí)注意不要產(chǎn)生氣泡
D.首先用電耳鏡或額鏡檢查外耳
E.對(duì)于耳背式助聽(tīng)器棉障放置深度要達(dá)到第二彎曲