Patent ID: 9668067
Date: 2017-05-30
CPC Classifications: H04R

Claim:
1. A hearing device ( 1 ) for being worn at least partly within an ear canal, comprising a shell ( 2 ) enclosing a cavity ( 3 ) with a first sound opening ( 4 ) and a second sound opening ( 19 ), and having a receiver ( 6 ) within the cavity ( 3 ), the receiver ( 6 ) being divided into a front chamber ( 7 ) and a back chamber ( 8 ) by a membrane ( 9 ), wherein the receiver ( 6 ) comprises a casing ( 10 ) with a first sound port ( 11 ) providing access to the front chamber ( 7 ) and a third sound port ( 15 ) providing access to the back chamber ( 8 ), and wherein the front chamber ( 7 ) is in acoustic communication with the exterior of the shell ( 2 ) via the first sound opening ( 4 ) connected to the first sound port ( 11 ) by a first sound tube ( 13 ), and wherein the back chamber ( 8 ) is in acoustic communication with the cavity ( 3 ) via the third sound port ( 15 ), the cavity ( 3 ) forming an extension of the back chamber ( 8 ), and wherein the cavity ( 3 ) is in acoustic communication with the exterior of the shell ( 2 ) via a canal ( 18 ) formed integrally with the shell ( 3 ), a first end ( 19 ) of the canal ( 18 ) forming the second sound opening ( 19 ), and a second end of the canal ( 18 ) forming a further sound opening ( 19 ′) to the exterior of the shell ( 2 ), and wherein said canal ( 18 ) is configured as a venting canal ( 18 ) providing ventilation as well as pressure equalization of the inner portion of the ear canal to outside the ear when the hearing device ( 1 ) is being worn.