耳镜是耳科疾病诊断和治疗中不可缺少的重要器具,以往均使用内腔固定的漏斗状耳镜,诊察和手术都不太方便。为了改变这种状况,我们反复设计,试制成功一种内腔可随耳道大小改变的可调式耳镜,操作应用甚为方便。新型耳镜的内腔由两片叶片合成,其中一活动叶片,与滑板相连,可根据耳道内径大 Otoscopy is an important and indispensable instrument in the diagnosis and treatment of otological diseases. In the past, the use of a funnel-shaped otoscope fixed in the lumen was inconvenient for both examination and operation. In order to change this situation, we have repeatedly designed, trial-produced successfully a cavity with adjustable ear canal earmuffs change the size of the operating application is very convenient. The new otoscope lumen by the two leaves synthesis, one of the activities of the blade, connected with the skateboard, according to the large diameter of the ear canal