ACCELERATION LEVELS AT HEARING THRESHOLD WITH DIRECT BONE CONDUCTION VERSUS CONVENTIONAL BONE CONDUCTION
ACCELERATION LEVELS AT HEARING THRESHOLD WITH DIRECT BONE CONDUCTION VERSUS CONVENTIONAL BONE CONDUCTION
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DOI：
10.3109/00016488509104786
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发表时间：
1985-01-01
影响因子：
1.4
通讯作者：
ROSENHALL, U
中科院分区：
文献类型：
--
作者：
HAKANSSON, B;TJELLSTROM, A;ROSENHALL, U
有些听力障碍患者不能使用传统的空气传导助听器，而必须使用骨传导助听器。引入永久性、穿透皮肤的钛植入物的技术使得开发一种所有部件都在一个外壳中的骨锚式助听器成为可能。10名患者已经使用这种辅助设备近2年。这项调查涉及的绝对加速度阈值测量这些患者中的7人。测量仪器主要由Bekesy听力计和加速度计组成。第4344章.在250至6000 Hz的频率范围内，与在完整皮肤表面上测量时相比，直接在钛螺钉上测量时，听阈处的加速度水平降低了16至28 dB。这种加速度阈值的降低可以通过皮肤和皮下软组织充当加速度的分流器的事实来解释。
Some patients with hearing disorders cannot use a conventional air conduction hearing aid, but have to use a bone conduction hearing aid. The technique of introducing a permanent, skin-penetrating titanium implant has made it possible to develop a bone-anchored hearing aid with all parts in a single housing. Ten patients have been using such an aid for almost 2 years. This investigation deals with absolute acceleration threshold measurements in 7 of these patients. The measuring apparatus consisted mainly of a Bekesy audiometer and an accelerometer. Bruel and Kjaer 4344. In the frequency range from 250 to 6000 Hz, the acceleration levels at hearing threshold decreased by between 16 and 28 dB when measured directly on the titanium screw, as compared with when measured on the intact skin surface. This lowering in acceleration thresholds can be explained by the fact that skin and subcutaneous soft tissues act as a shunt for acceleration.