专利名称：A hearing aid with a tightening ring发明人：Topholm, Jan申请号：EP01610033.1申请日：20010326公开号：EP1246507A1公开日：20021002
专利附图：
摘要：The present invention relates to a hearing aid for insertion in the auditory canal,comprising a hearing aid housing produced according to any of the preceding claims andcomprising a face plate and a shell that is matched to the auditory canal of a user and hasa tightening protrusion that extends along the surface of the shell and at least partly
encircles the shell thereby providing a tight seal against the auditory canal wall when theshell is inserted in the auditory canal.
申请人：Widex A/S
地址：Ny Vestergaardsvej 25 3500 Vaerloese DK
国籍：DK
代理机构：Jorgensen, Bjorn Barker
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