摘要
鼻咽部压力增高致咽鼓管被动开放 ,外耳道压力亦发生相应变化。本仪器用压力传感器测得鼻咽部及外耳道的实时压力 ,可获得咽鼓管的被动开放压值 ;再经微处理器处理 ,打印出检查结果。
This paper presents a KNY ventilating function detection apparatus of eustachian tube based on the theory that the eustachian tube will be opened passively and the pressure of meatus acusticus externus be changed with the increase of nasopharynx pressure.The apparatus can detect the actual pressure of nasoparynx and meatus acusticus externus,and acquire the pressure value when the eustachian tube is opened passively.Finally,the results can also be output by way of microcomputer.
出处
《医疗卫生装备》
2000年第3期4-6,共3页
Chinese Medical Equipment Journal
