EVOKED OTOACOUSTIC DISTORTION SCREENING DEVICE

描述：(改编自申请人的摘要。)一种设备，用于 正在对婴幼儿进行听力障碍筛查 发展起来的。及早发现这种损害对于提供 这些人所需要的特殊医疗保健和教育，如 以及促进他们交流技能的发展。 建议的设备不断地向耳朵呈现声音，导致 发出微弱但可测量的连续声音的正常耳朵 回应。该装置采用紧凑的数字电路，以 检测和测量发出的声音，以抑制 噪音，并评估听力的功能。该装置将会是 体积小，电池供电，坚固耐用，速度快，所需时间大大减少 做一个比其他方法更好的测试。此外，该仪器还可以 生产成本低于目前可用于此目的的产品 需要一台电脑。

DESCRIPTION: (Adapted from the Applicant's Abstract.) A device to screen infants and young children for auditory impairment is being developed. Early detection of such impairment is important in providing the special health care and education such individuals require, as well as to facilitate their development of communicative skills. The proposed device presents sound to the ear continuously, causing a normal ear to emitfaint but measurable continuous sounds in response. Compact digital circuitry is used in the device to detect and measure the emitted sound, to suppress the effects of noise, and to assess the functionality of hearing. The device is to be small, battery-powered, robust, and rapid, requiring much less time to do a test than other methods. In addition, the instrument can be produced at lower cost than those now available for the purpose requiring a computer.