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西门子SD30能自动测量中耳听觉通道的声阻抗 ,能测量同侧与对侧的镫骨肌反射 ,同时还能测咽鼓管功能 ,测鼓膜穿孔与否。是配合临床耳科诊断疾病的重要仪器。随着使用时间的增长 ,仪器经常出现耳机上红灯点亮不能正常测量的故障。红灯点亮表示仪器有漏气、堵塞或元器件损坏
Siemens SD30 can automatically measure the acoustic impedance of the middle ear auditory canal, can measure the ipsilateral and contralateral reflexes of the stapedius, and can also measure the eustachian tube function and measure the perforation of the tympanic membrane. It is an important instrument for diagnosing diseases with clinical otology. With the increase of the use time, the instrument often has a fault that the red light on the earphone cannot be measured normally. Red light indicates that the instrument is leaking, plugging, or component damage