采用胶质膜、干冻的主动脉瓣和小牛盲肠浆膜层等异种材料修补鼓膜和鼓室成形,近几年来已见诸报告,据谓所有这些材料的机械性能均优于颞肌筋膜。且便于安放。本文目的旨在评价模式异种鼓膜应用于入耳前后的组织学形态结构。取小牛颈静脉,先放入无花果蛋白酶(ficin) In recent years, there have been reports of repair of the tympanic membrane and tympanic cavity using a heterogeneous material such as a glial membrane, a frozen aortic valve and a calf caecal serosal layer. All of these materials are said to be superior in mechanical properties to the temporal fascia . And easy to place. The purpose of this paper is to evaluate the effect of different types of tympanic membranes on histological structures before and after instillation. Take the calf jugular vein, first into the ficin (ficin)