Encapsulated hearing device

Patent metadata

Field	Value
Publication number	US-9832579-B2
Application number	US-201214428678-A
Country	US
Kind code	B2
Filing date	Sep 18, 2012
Priority date	Sep 18, 2012
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

The present invention relates to an encapulated hearing device ( 50 ), e.g. for long-term wear, in which an electronics module ( 10 ) is encapsulated into a thermoformed hull ( 30 ) by means of an appropriate adhesive ( 41 ). This thermoformed hull ( 30 ) acts as an improved barrier between the electronics module ( 10 ) and the environment of the inner ear, reducing the risk of moisture reaching electrical components.

First claim

What is claimed is:

1. An in-the-ear hearing device, comprising:
a single-piece thermoformed hull with a first opening and a second opening;
an electronics module comprising a microphone, a battery, and a loudspeaker,
wherein the electronics module is disposed in the single-piece thermoformed hull,
wherein the microphone is communication with the first opening,
wherein the first opening is configured to provide sound to the microphone,
wherein the loudspeaker is in communication with the second opening,
wherein the second opening is configured enable the output of sound,
wherein the entire electronics module is encapsulated by the single-piece thermoformed hull,
wherein the battery is hardwired to the electronics module without a battery compartment separate from the single-piece thermoformed hull, and
wherein the single-piece thermoformed hull is configured to be positioned within an ear canal;

adhesive that adheres to the single-piece thermoformed hull, and
wherein the adhesive fills gaps between the electronics module and the single-piece thermoformed hull.

2. The hearing device of claim 1 , wherein a tube is attached to the second opening.

3. The hearing device of claim 2 , wherein the tube protrudes through the second opening in to the single-piece thermoformed hull.

4. The hearing device of claim 2 , wherein the tube is substantially cylindrical or hollow-truncated-conical.

5. The hearing device of claim 1 , wherein the electronics module is physically coupled to an extraction loop proximate to the first opening.

6. The hearing device of claim 1 , further comprising a silicone ear mold or a compressible seal disposed around the hull.

7. The hearing device of claim 1 , wherein the hull is sized such that it is deformed by the electronics module.

8. The hearing device of claim 1 , further comprising a vent tube inside the hull and having a first end in communication with first opening.

9. A method of manufacturing an in-the-ear hearing device comprising:
providing a sheet of thermoformable material;
thermoforming and separating a hull blank from the sheet of thermoformable material, said hull blank comprising an open end and a closed end;
forming at least one opening in the closed end of the hull blank, thereby forming a hull;
providing an electronics module comprising a microphone in communication with a sound inlet, a battery, and a loudspeaker in communication with a sound outlet;
inserting the entire electronics module into the hull such that the sound outlet is in communication with the opening;
filling the hull and the electronics module with the exception of at least part of the sound inlet and at least part of the sound outlet into the hull with an adhesive, wherein:
the battery is hardwired to the electronics module without a battery compartment separate from the hull;
the adhesive adheres to the hull,
the adhesive fills gaps between the electronics module and the hull, and
wherein the hull is configured to be positioned within an ear canal.

10. The method according of claim 9 , further comprising:
attaching a tube to the sound outlet.

11. The method to claim 10 , wherein the hull at least partially prevents moisture from entering the electronics module.

12. The method of claim 9 , further comprising:
forming an additional opening on the closed end of the hull blank; and
inserting a vent tube into the hull blank.

13. The method of claim 12 , further comprising:
trimming excess vent tube material such that the vent tube is flush with or protrudes less than or equal to 2 mm from the hull.

14. The method of claim 9 , wherein the hull blank is separated from the sheet of thermoformable material by laser cutting or hot-wire cutting, and wherein the at least one opening is formed by laser cutting or die cutting.

15. The method of claim 9 , wherein the thermoformable material includes at least one of the following: BAREX, PET-GAG, COP, PEEK, or any combination thereof.

16. The method of claim 9 , wherein, the adhesive is applied by means of a cannula.

17. The method of claim 9 , wherein the adhesive is a UV- or light-curable epoxy, and wherein the adhesive is cured by UV radiation or light.

Assignees

• Sonova Ag

Inventors

• Karamuk Erdal
• Gabathuler Bruno
• Vonlanthen Andi
• Thomas Stephanie
• Muller Markus

Classifications

• H04R25/658

  Manufacture of housing parts · CPC title

• H04R25/65 Primary

  Housing parts, e.g. shells, tips or moulds, or their manufacture · CPC title

• H04R25/608

  Electricity · mapped topic

• H04R2225/023

  Completely in the canal [CIC] hearing aids · CPC title

• H04R25/60 Primary

  Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles (ear wax retarders, e.g. mounting thereof H04R25/654) · CPC title