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我院自1977年4～12月采用国产 ZE-78型中耳功能测定仪,对335名604只正常耳进行声阻抗测定。335名中,男289名,女46名;年龄<10岁4名,11～40岁293名,>41岁38名。珊将测定结果报道于后。一、鼓膜声顺值 604只正常耳鼓膜声顺平均值 C 为0.71毫升(大部分在0.30～1.60毫升内),与 Jerger 等报道的0.3～1.65毫升相近.二、中耳鼓膜声顺与压力变化关系用低频300赫测得正常耳声顺压力曲线,对其进行压力为±50和±100毫米水柱的声顺比(Cr)统计.表1说明曲线的平均形状是对称的.男女间 Cr 值无显著差别。
Our hospital from April 1977 to December using homemade ZE-78 middle ear function detector, 335 of 604 normal ears for acoustic impedance measurements. Among 335, 289 were males and 46 were females; 4 were aged <10, 293 were aged 11-40, and> 38 were 41. Susan reported the results after the test. First, the tympanic membrane sound value 604 The normal eardrum membrane sound cis average C of 0.71 ml (most of 0.30 ~ 1.60 ml), and Jerger reported 0.3 ~ 1.65 ml similar to the second, the middle ear tympanic membrane along with the pressure Variations The normal ostacial pressure curve was measured with a low frequency of 300 Hz and was subjected to a sound-to-cis (Cr) statistic of ± 50 and ± 100 mm water. Table 1 shows that the average shape of the curve is symmetrical. No significant difference in value.