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    • 5. 发明申请
    • CIC HEARING AID SEAL AND METHOD OF MANUFACTURING THE SAME
    • CIC听力密封及其制造方法
    • WO2014040649A1
    • 2014-03-20
    • PCT/EP2012/068209
    • 2012-09-17
    • PHONAK AG
    • KARAMUK, ErdalWENZEL, Stuart
    • H04R25/00
    • H04R25/652B29C43/003B29C43/027B29C43/32B29C45/0001B29C45/0055B29C45/1671B29C2045/0058B29C2045/0091B29C2045/1673B29K2083/005B29K2105/041B29K2995/0002B29L2031/26F16J15/04H04R25/02H04R25/456H04R25/608H04R25/658H04R2225/023H04R2460/15
    • The invention relates to a method of manufacturing an acoustic seal (100, 110) for retaining a CIC hearing aid (30, 230) within a portion of the ear canal (10) by contact with the wall (20) of the ear canal, comprising: embedding sacrificial particles (70) having a size of at least 50μm and not more than 250μm into a silicone rubber matrix (72), wherein the concentration and the size of the sacrificial particles is selected such that a porosity of at least 40% is achieved; molding the silicone rubber matrix into a desired shape by using a mold and curing the silicone rubber matrix; removing the sacrificial particles from the silicone rubber matrix by leaching out the sacrificial particles in a solvent; and drying the silicone rubber matrix; wherein the seal is designed to surround at least part of the hearing aid and wherein the seal is designed, by selection of the size and/or the concentration and/or the distribution of the sacrificial particles, to provide for an acoustic attenuation of at least 20 dB in a frequency range between 200 Hz and 6 kHz, when the hearing aid is inserted into the ear canal, and for a compliance of at least 50 mm/N.
    • 本发明涉及一种用于通过与耳道的壁(20)接触来制造用于将CIC助听器(30,230)保持在耳道(10)的一部分内的声学密封件(100,110)的方法, 包括:将具有至少50μm且不大于250μm的尺寸的牺牲颗粒(70)嵌入到硅橡胶基质(72)中,其中所述牺牲颗粒的浓度和尺寸被选择为使得至少40% 已完成; 通过使用模具将硅橡胶基体成型为期望的形状并固化硅橡胶基体; 通过在溶剂中浸出牺牲颗粒从硅橡胶基质中除去牺牲颗粒; 并干燥硅橡胶基体; 其中所述密封件被设计成围绕所述助听器的至少一部分,并且其中通过选择所述牺牲颗粒的尺寸和/或浓度和/或分布来设计所述密封件,以提供至少 当助听器插入耳道时,在200Hz至6kHz之间的频率范围内为20dB,并且至少达到50mm / N。
    • 10. 发明申请
    • METHODS OF FORMING MUFFLER PREFORMS
    • 形成MUFFLER前言的方法
    • WO2008147743A2
    • 2008-12-04
    • PCT/US2008064032
    • 2008-05-19
    • OCV INTELLECTUAL CAPITAL LLCKASHIKAR SANJAY PBRANDT LUC J LCHARLIER LEON
    • KASHIKAR SANJAY PBRANDT LUC J LCHARLIER LEON
    • B29B11/16C03B37/01F01N1/24
    • B29C70/305B29B11/12B29B11/16B29C70/16B29C70/345B29K2101/12B29K2709/08B29K2995/0002D04H3/12D04H3/14F01N1/24F01N13/16F01N2450/06
    • Methods of forming compressed preform products formed from continuous fibers substantially evenly coated with a thermoplastic sizing composition are provided. Applying a thermoplastic sizing composition to continuous fibers during the formation of the fibers enables a preform to be formed without applying any additional sizing or binder compositions at later stages of the manufacturing of the preform. The thermoplastic sizing composition includes a thermoplastic material, and, optionally a silane coupling agent. The thermoplastic material in the thermoplastic sizing composition includes chemicals and/or compounds that are thermoplastic or possess thermoplastic properties. One or more preforms may be randomly inserted to a muffler cavity. Upon the application of heat, the preforms decompress and fill the cavity with fibrous material. Due to the ability to decompress the compressed preform product, the preform product can have a shape that is independent of the shape of the muffler cavity.
    • 提供了形成由基本上均匀地涂覆有热塑性施胶组合物的连续纤维形成的压缩预制品的方法。 在形成纤维期间将热塑性施胶组合物施加到连续纤维上使预成型件能够在预成型件制造的后期阶段施加任何额外的上浆或粘合剂组合物。 热塑性施胶组合物包括热塑性材料和任选的硅烷偶联剂。 热塑性施胶组合物中的热塑性材料包括热塑性或具有热塑性的化学品和/或化合物。 一个或多个预成型件可以随机地插入到消声器腔中。 在施加热量时,预成型件用纤维材料减压并填充空腔。 由于能够对压缩的预制品进行减压,所以预成型产品可以具有独立于消声器腔的形状的形状。