公开(公告)号：US20170318403A1

公开(公告)日：2017-11-02

申请号：US15507507

申请日：2015-08-27

Applicant: Sonova AG

Inventor： JANA-KOSIMA SCHWARZLOS-SOOPRAYEN ,  Erdal KARAMUK ,  Daniel PROBST ,  Natasha THUMM

IPC: H04R25/00

CPC classification number: H04R25/652 ,  B29C39/026 ,  B29C39/10 ,  B29C39/36 ,  B29C39/44 ,  B29C64/393 ,  B29L2031/40 ,  H04R25/658 ,  H04R2225/77

Abstract: This invention relates to an impression-taking pad (10) for taking an impression (20) of an ear canal (30) by an impression-taking material, having a lateral end (el) to be arranged away from a tympanic membrane (35) in said ear canal (30); and a medial end (em) to be arranged proximate to said tympanic membrane (35). The impression-taking pad (10) comprises an outer body (2) tapering from said lateral end (el) to said medial end (em). The impression-taking pad (10) further comprises an inner body (3) for releasable engagement with a tool (11, 12) for visual inspection of the ear canal (30), the inner body (3) being configured to support insertion of the impression-taking pad (10) in the ear canal (30) by the tool (11, 12). The impression-taking pad (10) comprises a duct (5) at least partially defmed by the inner body (3), forming at least part of an optical path for visual inspection of the ear canal (30); wherein the optical path further comprises an inspection window (6), closing said duct (5), configured to support inspection of the ear canal (30) during the insertion of the impression-taking pad (10) in the ear canal (30); The impression-taking pad (10) is further configured to form an integral part of said impression (20). The present invention also relates to a method of taking an impression by the above defmed impression-taking pad (10); as well as to a correlated impression-taking system comprising an aptly modified tool (11, 12) to cooperate with such an impression-taking pad (10).

公开(公告)号：US20190387300A1

公开(公告)日：2019-12-19

申请号：US16487958

申请日：2017-02-23

Applicant: Sonova AG

Inventor： Natasha THUMM ,  Jana-Kosima Schwarzlos-Sooprayen ,  Erdal Karamuk ,  Patrizia Richner

IPC: H04R1/10 ,  B23K26/34

Abstract: The present invention relates to a hearing device housing (12) comprising titanium. The arithmetical mean roughness of the housing surface is Ra=0.7-1.8 μm according to DIN EN ISO 4287/DIN EN ISO 4288. The proposed hearing device housing (12) provides improved effects on retention and wearing comfort. Performance during insertion and removal of the hearing device housing (12) is improved.