发明名称 Method of manufacturing an ear plug device with embedded venting grooves formed in its outer surface
摘要 A hearing device having at least one of an acoustical/electrical converter and an electrical/acoustical converter respectively with an acoustical input or output. The input or output, as the case may be, is linked to a coupling opening at the outer surface of the device via a channel. At least a part of the outer surface of the device is formed by a one-part shell. The shell defines an inner space of the device, with the channel being provided within and along the part of the shell and being formed within the material of the shell.
申请公布号 US7757400(B2) 申请公布日期 2010.07.20
申请号 US20080193139 申请日期 2008.08.18
申请人 PHONAK AG 发明人 WIDMER CHRISTOPH;HESSEL HANS;WEIDMANN MARKUS
分类号 H04R31/00 主分类号 H04R31/00
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