Sound tube and eartip for behind-the-ear hearing aid

摘要

The invention describes a hearing device (10) with a BTE (Behind-The-Ear) unit (12) and an air filled tube (26). The BTE unit (12) comprises a power source (18), a microphone (16), an amplifier (20), and a receiver (22) and is configured to be mounted behind or on the ear (14) of a user. The air filled tube (26) has a proximal end (24) and a distal end (40). The proximal end (24) of the air filled tube (26) is connected to the receiver (22) of the BTE unit (12) and a flexible sealing part (38; 50; 50'; 56) is provided at the distal end (40). The flexible sealing part (38; 50; 50'; 56) comprises a core hole (44) permeable for sound transmitted from the air filled tube (26) through a core pathway (32). The air filled tube (26) is further configured to be arranged in a user's ear canal (30) to transmit sound generated by the BTE unit (10) to a tympanic membrane (48) of the user. The flexible sealing part (38; 50; 50'; 56) is arranged in a bony portion (42) of the user's ear canal (30) when in use. The diameter of the flexible sealing part (38; 50; 50'; 56) is at least as large as the diameter of the bony portion (42) of the ear canal (30) of a user to close the ear canal (30).