公开(公告)号：US4800884A

公开(公告)日：1989-01-31

申请号：US837708

申请日：1986-03-07

申请人： Jorgan Heide ,  Timothy D. Gooch ,  Anthony D. Prescott ,  Thomas W. Sander ,  Jim Davidson ,  Eric A. Renz

发明人： Jorgan Heide ,  Timothy D. Gooch ,  Anthony D. Prescott ,  Thomas W. Sander ,  Jim Davidson ,  Eric A. Renz

IPC分类号： H04R25/02 ,  H04R25/00 ,  H04R25/04

CPC分类号： H04R25/606

摘要： A magnetic induction hearing aid where the microphone, the amplifying electronics, the battery and a coil are contained in a single housing which is located deep in the ear canal. A magnet is attached to portions of the middle ear by means of a malleus clip or by implantation between the tympanic membrane and the malleus. The magnet is vibrated by interaction with the magnetic field produced by the coil. Two amplifier designs are disclosed for use with different levels of hearing loss. The magnet can be coated with hydroxyapatite for permanent attachment to the body. The magnet is coated with hydroxyapatite by an ion implantation process, a plasma spraying technique or a method of applying the hydroxyapatite while a precoating polymeric material has not fully solidified.

摘要翻译： 一种磁感应助听器，其中麦克风，放大电子设备，电池和线圈包含在位于耳道深处的单个外壳中。 磁铁通过锤形夹或通过在鼓膜和锤体之间的植入附着到中耳的部分上。 磁体通过与线圈产生的磁场的相互作用而振动。 公开了两种放大器设计用于不同程度的听力损失。 磁体可以涂覆羟基磷灰石，以永久性地附着在身上。 通过离子注入工艺，等离子体喷涂技术或在预涂聚合物材料尚未完全固化的情况下施加羟基磷灰石的方法，将磁体涂覆在羟基磷灰石上。