# US 2010/0166239 A1 · Shielding of Behind-The-Ear Hearing Aids > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166239 A1 - Document ID: US20100166239A1 - Status: Published application - Kind: A1 - Application number: 12/344,865 - Filed: 2008-12-29 - Published: 2010-07-01 - Earliest claimed: 2008-12-29 - Inventors: Donald H. Bilderback - Web page: https://patentgrep.com/patent/US20100166239A1 ## CPC - H04R 25/65: {Housing parts, e.g. shells, tips or moulds, or their manufacture} - H04R 25/658: {Manufacture of housing parts} - H04R 2225/49: Reducing the effects of electromagnetic noise on the functioning of hearing aids, by, e.g. shielding, signal processing adaptation, selective (de)activation of electronic parts in hearing aid - 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 Provided is a method and shield for shielding a behind-the-ear hearing aid. A Mu metal shielding material is bonded to the external or internal surface of the behind-the-ear hearing aid, the shielding providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz. A hearing canal mold comprised of a rubber-like compound, shaped to encompass and seal an outer portion of a hearing tube of a hearing aid and a user's hearing canal entrance is also provided. ## Claims ### Claim 1 A shield for a behind-the-ear hearing aid, the shield comprising a shielding material providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to 1,600 MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz. ### Claim 2 (depends on 1) The shield according to claim 1, wherein the shielding material forms a layer along an interior surface of the hearing aid. ### Claim 3 (depends on 1) The shield according to claim 1, wherein the shielding material forms a layer along an exterior surface of a hearing aid. ### Claim 4 (depends on 1) The shield according to claim 1, wherein effective electromagnetic radiation and audio shielding is at least 75% of the electromagnetic radiation and audio intensities, respectively. ### Claim 5 (depends on 1) The shield according to claim 1, wherein the shield is comprised of a Mu metal. ### Claim 6 (depends on 1) The shield according to claim 1, further comprising a hearing canal mold, wherein the hearing canal mould is comprised of a rubber-like silicone compound, and the hearing canal mold further comprises an inner surface shaped to encompass and seal an outer portion of a hearing tube of the hearing aid and an outer portion shaped to encompass and seal a user's hearing canal entrance. ### Claim 7 A method for shielding a behind-the-ear hearing aid, the method comprising encompassing the electromagnetic, radio and sound wave producing components with a shielding material providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to 1,600 MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz. ### Claim 8 (depends on 7) The method according to claim 7, wherein the shielding material forms a layer along an interior surface of the hearing aid. ### Claim 9 (depends on 7) The method according to claim 7, wherein the shielding material forms a layer along an exterior surface of a hearing aid. ### Claim 10 (depends on 7) The method according to claim 7, wherein the effective electromagnetic radiation and audio shielding is at least 75% of the electromagnetic radiation and audio intensities, respectively. ### Claim 11 (depends on 7) The method according to claim 7, wherein the shield is comprised of a Mu metal. ### Claim 12 (depends on 7) The method according to claim 7, further comprising providing a hearing canal mold, wherein the hearing canal mould is comprised of a rubber-like silicone compound, and the hearing canal mold further comprises an inner surface shaped to encompass and seal an outer portion of a hearing tube of the hearing aid and an outer portion shaped to encompass and seal a user's hearing canal entrance. ### Claim 13 A kit for shielding a behind-the-ear hearing aid, the kit comprising: a shielding material for providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to 1,600 MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz when installed; an adhesive for bonding the shielding material to an outer surface of the behind-the-ear hearing aid; a hearing canal mold, wherein the hearing canal mould is comprised of a rubber-like silicone compound, and the hearing canal mold further comprises an inner surface shaped to encompass and seal an outer portion of a hearing tube of the hearing aid and an outer portion shaped to encompass and seal a user's hearing canal entrance; and instructions for installing the shielding material on the behind-the-ear hearing aid and for installing the hearing canal mold. ### Claim 14 (depends on 13) The kit according to claim 13, wherein the effective electromagnetic radiation and audio shielding is at least 75% of the electromagnetic radiation and audio intensities, respectively. ### Claim 15 (depends on 13) The kit according to claim 13, wherein the shielding material is a Mu metal. ### Claim 16 A kit for shielding a behind-the-ear hearing aid, the kit comprising: two or more preformed and annealed sections comprised of a shielding material for providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to 1,600 MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz when installed, the two or more sections being joined to form a containment around a behind-the ear-hearing aid; a hearing canal mold, wherein the hearing canal mould is comprised of a rubber-like silicone compound, and the hearing canal mold further comprises an inner surface shaped to encompass and seal an outer portion of a hearing tube of the hearing aid and an outer portion shaped to encompass and seal a user's hearing canal entrance; and a fastening means for securing the two or more joined sections to one another. ### Claim 17 (depends on 16) The kit according to claim 16, wherein the fastening means is an adhesive. ### Claim 18 (depends on 16) The kit according to claim 16, wherein the fastening means is a binding wrapped around the joined sections. ### Claim 19 (depends on 16) The kit according to claim 16, wherein the fastening means is a hinge and clasp mechanism. ### Claim 20 A shield for a behind-the-ear hearing aid, the shield comprising a Mu metal shielding material bonded to the external surface of the behind-the-ear hearing aid, the shielding providing effective shielding of electromagnetic radiation in the frequency range of 20 Hz to 1,600 MHz and effective sound shielding in the audio frequency range of 20 Hz to 20,000 Hz.