耳损伤的法医学鉴定分析

听功能操作是法医学鉴定中的常见操作之一，由于耳部结构复杂，其操作后常伴有不同程度的听功能障碍。因此，听功能损伤是法医临床鉴定工作中的重点也是难点之一。通过对2002年-2004年间有关耳损伤的法医学鉴定进行回顾性分析，发现听功能损伤鉴定以伤害案件居多，而变通肇事致听功能障碍者少见；致伤物以钝器多见；耳损伤以鼓膜穿孔为主；听功能损伤鉴定伪聋与夸大听力障碍程度的占有一定比例，听功能损伤的法医学鉴定应用ABR结合词频音掩蔽试验能很好地识别伪聋及夸大病情的案例，对于存在客观听力障碍，而排除鼓膜穿孔及颞骨骨折等常见致聋因素的案例，建议考虑突聋所致。

Forensic Identification and Analysis on Ear Injure

Objective——Analysis of the chavacteristics of auditory function damage and explere the problems encountered in application of the State Criteria of Medico-legal Appraisal on auditory function damage in forensic practice.Methods——The identification cases about damage of anditory function which were collected from 2003 to 2005 were analyzed.Results Of 158 cases,auditory function damage because of injuring accounted for the most cases;vulnrate objects were mostly ambly-utensil;perforation of ear drum was primary resean for auditory function damage;malingering hearing loss and handicap of hearing magnified possessed some proportion.Conclusion——The cases of malingering hearing loss and handicap of hearing magnified can be identified perfectly by the same frequency tone masking test combinee with ABR.The reason of the cases with ebjective dysaudia which aren＇t caused by perforation of ear drum as well as temporal bone fraeture and so on consider carefully.