# US 2020/0288254 A1 · Hearing device with vent > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288254 A1 - Document ID: US20200288254A1 - Status: Published application - Kind: A1 - Application number: 16/786,547 - Filed: 2020-02-10 - Published: 2020-09-10 - Earliest claimed: 2019-03-08 - Assignees: GN Hearing A/S - Applicants: Gn Hearing A/S - Inventors: Ippei HAMAGUCHI - Web page: https://patentgrep.com/patent/US20200288254A1 ## CPC - H04R 25/652: {Ear tips; Ear moulds (hybrid ear moulds or post-processing thereof for their customisation H04R25/659)} - H04R 25/658: {Manufacture of housing parts} - H04R 25/659: {Post-processing of hybrid ear moulds for customisation, e.g. in-situ curing} - H04R 2225/025: In the ear hearing aids [ITE] hearing aids - H04R 2460/11: Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract An earpiece housing includes: an ear canal part to be introduced into an ear canal of a user, wherein the ear canal part extends along an ear canal axis of the earpiece, the ear canal part having a first end configured to be positioned in the ear canal of the user; a first protrusion with a first outer surface; and a second protrusion with a second outer surface; and an intermediate space between the first protrusion and the second protrusion; wherein the first protrusion is between the first end of the ear canal part and the second protrusion along the ear canal axis, the first protrusion comprising a first channel part configured to provide fluid communication between an ear canal cavity and the intermediate space, the second protrusion comprising a second channel part configured to provide fluid communication between the intermediate space and a surrounding of the user. ## Claims ### Claim 1 An earpiece for a hearing device, the earpiece comprising an earpiece housing comprising: an ear canal part to be introduced into an ear canal of a user, where the ear canal part extends along an ear canal axis of the earpiece, the ear canal part having a first end configured to be positioned in the ear canal of the user; a first protrusion with a first outer surface; and a second protrusion with a second outer surface; and an intermediate space between the first protrusion and the second protrusion; wherein the first protrusion is between the first end of the ear canal part and the second protrusion along the ear canal axis, the first protrusion comprising a first channel part configured to provide fluid communication between an ear canal cavity and the intermediate space, the second protrusion comprising a second channel part configured to provide fluid communication between the intermediate space and a surrounding of the user. ### Claim 2 (depends on 1) The earpiece according to claim 1, wherein the first outer surface is configured to contact a wall of the ear canal of the user when the earpiece is inserted into the ear canal of the user. ### Claim 3 (depends on 1) The earpiece according to claim 1, wherein the second outer surface is configured to contact a wall of the ear canal of the user when the earpiece is inserted into the ear canal of the user. ### Claim 4 (depends on 1) The earpiece according to claim 1, wherein the first channel part has a first diameter in a range of 0.5 mm to 5 mm, and the second channel part has a second diameter in a range of 0.5 mm to 5 mm, and wherein the second diameter is larger than the first diameter. ### Claim 5 (depends on 1) The earpiece according to claim 1, wherein the first channel part has a first length in a range of 1 mm to 5 mm. ### Claim 6 (depends on 1) The earpiece according to claim 1, wherein the second channel part has a second length in a range of 1 mm to 5 mm. ### Claim 7 (depends on 1) The earpiece according to claim 1, wherein the intermediate space has a length in a range of 3 mm to 10 mm. ### Claim 8 (depends on 1) The earpiece according to claim 1, wherein a length of the intermediate space is larger than a length of the first channel part. ### Claim 9 (depends on 1) The earpiece according to claim 1, wherein a length of the intermediate space is larger than a length of the second channel part. ### Claim 10 (depends on 1) The earpiece according to claim 1, wherein a length of the intermediate space is larger than a sum of a length of the first channel part and a length of the second channel part. ### Claim 11 (depends on 1) The earpiece according to claim 1, wherein the first channel part has a first primary opening directed towards the ear canal cavity, the first primary opening comprising a first rounded edge, and the second channel part has a second secondary opening directed towards the intermediate space, the second secondary opening comprising a second rounded edge. ### Claim 12 (depends on 1) The earpiece according to claim 1, wherein the intermediate space is at least partially defined by an outer surface of the earpiece housing. ### Claim 13 (depends on 1) The earpiece according to claim 1, wherein the first protrusion is at a first distance from the first end, wherein the first distance is in a range from 0.5 mm to 4.0 mm. ### Claim 14 (depends on 1) The earpiece according to claim 1, wherein the ear canal cavity is between a tympanic membrane and the earpiece housing when the earpiece is inserted into the ear canal of the user. ### Claim 15 A method of manufacturing an earpiece of a hearing device, comprising: obtaining a model of an ear canal of a user; determining a configuration of an earpiece housing member to be formed based on the model of the ear canal, wherein the earpiece housing member to be formed comprises a first protrusion, a second protrusion, and an intermediate space between the first protrusion and the second protrusion; forming the earpiece housing member based on the determined configuration; forming a first channel part in the first protrusion; and forming a second channel part in the second protrusion. ### Claim 16 (depends on 15) The method of claim 15, wherein the act of forming the earpiece housing member comprises molding the earpiece housing member. ### Claim 17 (depends on 15) The method of claim 15, wherein the act of determining the configuration of the earpiece housing member to be formed comprises: determining a model for the earpiece housing member; and removing a part of the model to define a configuration of the first protrusion and a configuration of the second protrusion.