# US 11,998,354 B2 · Hearing aid comprising one or more sensors for biometrical measurements

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- Number: US 11,998,354 B2
- Document ID: US11998354B2
- Status: Granted
- Kind: B2
- Application number: 17/571,121
- Filed: 2022-01-07
- Published: 2022-07-14
- Granted: 2024-06-04
- Earliest claimed: 2021-01-08
- Assignees: Oticon A/S
- Applicants: Oticon A/S
- Inventors: Svend Oscar Petersen; Mathias Bruun Larsen; Sergi Rotger Griful; José Antonio Esparza Isasa; Mikkel Nielsen; Kim Mølholm Hejlesen; Henrik Bendsen; Preben Kvist; Svend Erik Elgaard; Jeanette Bülow Nielsen; Zenia Holtzmann Lausten; Malte Kiewning; Jesper B. Johansen; Nicolai Westergren; Tanveer Bhuiyan; Sudershan Y. S
- Web page: https://patentgrep.com/patent/US11998354B2

## CPC

- A61B 5/6817: {Ear canal}
- A61B 5/02416: {using photoplethysmograph signals, e.g. generated by infrared radiation (A61B5/14552 takes precedence)}
- H04R 25/505: {using digital signal processing}
- H04R 25/554: {using a wireless connection, e.g. between microphone and amplifier or using Tcoils}
- H04R 25/602: {of batteries}
- H04R 25/604: {of acoustic or vibrational transducers}
- H04R 25/609: {of circuitry (of electronic switches or control elements H04R25/603)}
- H04R 25/652: {Ear tips; Ear moulds (hybrid ear moulds or post-processing thereof for their customisation H04R25/659)}
- A61B 5/6815: {Ear}
- H04R 2225/021: Behind the ear [BTE] hearing aids
- H04R 2225/0216: BTE hearing aids having a receiver in the ear mould
- H04R 2225/55: Communication between hearing aids and external devices via a network for data exchange
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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

A hearing aid having one or more biometrical sensors, where the hearing aid comprises at least one microphone configured to receive a sound of the surroundings, a signal processor configured to process the sound received from the microphone and a speaker unit configuration configured to emit the processed sound into the ear of a user, wherein one or more sensors is positioned substantially in the ear together with at least a part of the hearing aid, wherein the one or more sensors is configured as biometrical sensors configured for recording health data of a hearing aid user.

## Claims

### Claim 1

A hearing aid having one or more biometrical sensors, the hearing aid comprising:
at least one microphone configured to receive a sound of the surroundings;
a signal processor configured to process the sound received from the microphone;
a speaker unit configuration configured to emit the processed sound into the ear of a user;
a flexible dome configured to conform to a canal of the user of the user;
wherein the one or more sensors is configured to be positioned substantially in the ear together with at least a part of the hearing aid, wherein the one or more sensors is configured as biometrical sensors configured for recording health data of a hearing aid user, wherein further, the hearing aid comprises a wireless communication interface configured to transmit at least the biometrical signals recorded by the one or more biometrical signals to an auxiliary device, wherein further the hearing aid comprises a behind the ear part having said signal processor, a battery and the one or more microphones, wherein the behind the ear part is connected to an in-the-ear part via a wire configured to allow communication between the behind the ear part and the in-the-ear part, wherein the in-the-ear part comprises the one or more biometrical sensors;
wherein the in-the-ear part comprises the speaker unit configuration, wherein at least a part of the speaker unit configuration is in communication with and/or in direct contact with the one or more biometrical sensors, wherein each of the one or more biometrical sensors is arranged in connection with the speaker unit configuration at a printed circuit board directly at a receiver of the speaker unit configuration or at a printed circuit board in close proximity to or directly connected to the receiver of the speaker unit configuration; and
the speaker unit configuration comprises a substantially flexible member separate from the flexible dome and configured to be inserted into the flexible dome, the substantially flexible member extending from a part of the speaker unit configuration radially outwardly away from the speaker unit configuration, and wherein the flexible member comprises the one or more sensors.

### Claim 2 (depends on 1)

Hearing aid according to claim 1, wherein at least one biometrical sensor is configured as a PhotoPlethysmosGram sensor comprising a LED emitter emitting light onto a tissue of the ear canal and a detector detecting reflected light from the tissue of the ear canal, wherein the PhotoPlethysmosGram sensor is configured with at least one optical media in connection with the LED and/or the detector, wherein the optical media focus the emitted and/or detected light, wherein the optical media is arranged substantially in front of the LED emitter and/or detector of the PhotoPlethysmosGram sensor.

### Claim 3 (depends on 2)

Hearing aid according to claim 2, wherein the optical media is configured as lenses and/or wave guides.

### Claim 4 (depends on 1)

Hearing aid according to claim 1, wherein the one or more biometrical sensors is positioned in connection with the speaker unit configuration of the hearing aid, wherein the speaker unit configuration is configured to be mounted to the dome of the hearing aid, wherein the dome comprises a communicative area having at least a material thickness and/or material configuration allowing the one or more sensors to be in communicative contact with the skin of the ear canal, when the speaker unit configuration is inserted into the dome and into the ear canal of a user.

### Claim 5 (depends on 1)

Hearing aid according claim 1, wherein at least a part of the speaker unit configuration and a least a part of the dome of the hearing aid comprises one or more sensor parts of the one or more sensors, wherein the speaker unit configuration at least comprises the printed circuit board for providing electrical communication for the data recorded by the one or more sensors.

### Claim 6 (depends on 5)

Hearing aid according to claim 5, wherein at least one emitter part of a biometrical sensor is arranged in connection with the speaker unit configuration, and at least one detector part of a biometrical sensor is arranged in connection with the dome, wherein the detector is configured as a photo sensitive material of the dome.

### Claim 7 (depends on 1)

Hearing aid according to claim 1, wherein the in-the-ear part is configured as a custom mold, wherein the receiver is arranged within the custom mold in close arrangement with the one or more sensors, wherein the printed circuit board (PCB) is wrapped around a protrusion extending from a cover plate of the custom mold, and wherein the PCB is configured to comprise at least one or more sensors.

### Claim 8 (depends on 7)

Hearing aid according to claim 7, wherein an inner core of the cover plate is configured as a hollow interior enabling placement of controlling components, e.g. sensor front-end or other sensors, such as accelerometer, and miscellaneous components (for e.g. capacitors) on the inside thereof.

### Claim 9 (depends on 7)

Hearing aid according to claim 7, wherein a plurality of light blocking elements is arranged at each corner of the cover plate enabling a blocking of direct light transmission between sensor parts.

### Claim 10 (depends on 7)

Hearing aid according to claim 7, wherein the PCB is configured with a bended area from which two sides of the PCB extend to form the outer sides of the PCB, wherein each of the outer sides of the PCB comprises at least one sensor configuration such as one LED emitter and one detector, and wherein the PCB is configured to be connected to the cover plate via an insertion area of the cover plate and insertion areas of the PCB.

### Claim 11 (depends on 1)

Hearing aid according to claim 1, wherein the speaker unit configuration is configured with speaker unit sensor electronics and a plurality of electrical connections at an acoustical interface of the speaker unit configuration, and wherein the dome of the hearing aid is configured with dome electrical connections and a dome acoustical interface so as to allow electrical communication between one or more sensor configurations of the dome and the speaker unit when the speaker unit acoustical interface and the dome acoustical interface connects.

### Claim 12 (depends on 1)

Hearing aid according to claim 1, wherein the one or more sensor configurations is chosen from the group of biometrical sensors including optical heart rate sensors, galvanic skin response sensors, electroencephalogram sensors, electrocardiogram sensors, accelerometers and wherein at least a part of the sensor is positioned in close proximity to the ear canal or in the inner parts of the ear canal and arranged within parts of the hearing aid.

### Claim 13 (depends on 1)

Hearing aid according to claim 1, wherein the hearing aid is configured to transmit biometrical sensor data to the auxiliary device via the communication interface, and is configured to receive an output from a data processing of said biometrical sensor data in a signal processor of the auxiliary device.

### Claim 14 (depends on 1)

Hearing aid according to claim 1, wherein the substantially flexible member extends from the part of the speaker unit configuration to the dome, and wherein the substantially flexible member, when inserted into the dome together with the speaker unit configuration is configured to fit into the dome having said sensor communicative area allowing the one or more sensors to be in communicatively contact with the skin of the ear canal.

### Claim 15 (depends on 14)

Hearing aid according to claim 14, wherein the substantially flexible member extends beyond a longitudinal end of the dome.

### Claim 16

A hearing aid having one or more biometrical sensors, the hearing aid comprising:
at least one microphone configured to receive a sound of the surroundings;
a signal processor configured to process the sound received from the microphone; a speaker unit configuration configured to emit the processed sound into the ear of a user;
wherein the one or more sensors is positioned substantially in the ear together with at least a part of the hearing aid, wherein the one or more sensors is configured as biometrical sensors configured for recording health data of a hearing aid user, wherein further, the hearing aid comprises a wireless communication interface configured to transmit at least the biometrical signals recorded by the one or more biometrical signals to an auxiliary device, wherein further the hearing aid comprises a behind the ear part having said signal processor, a battery and the one or more microphones, wherein the behind the ear part is connected to an in-the-ear part via a wire configured to allow communication between the behind the ear part and the in-the-ear part, wherein the in-the-ear part comprises the one or more biometrical sensors;
wherein the in-the-ear part comprises the speaker unit configuration, wherein at least a part of the speaker unit configuration is in communication with and/or in direct contact with the one or more biometrical sensors, wherein each of the one or more biometrical sensors is arranged in connection with the speaker unit configuration at a printed circuit board directly at a receiver of the speaker unit configuration or at a printed circuit board in close proximity to or directly connected to the receiver of the speaker unit configuration; and wherein at least a part of the speaker unit configuration and a least a part of a dome of the hearing aid comprises one or more sensor parts of the one or more sensors, wherein the speaker unit configuration at least comprises the printed circuit board for providing electrical communication for the data recorded by the one or more sensors;
wherein at least one emitter part of a biometrical sensor is arranged in connection with the speaker unit configuration, and at least one detector part of a biometrical sensor is arranged in connection with the dome, wherein the detector is configured as a photo sensitive material of the dome.

### Claim 17

A hearing aid having one or more biometrical sensors, the hearing aid comprising:
at least one microphone configured to receive a sound of the surroundings;
a signal processor configured to process the sound received from the microphone;
a speaker unit configuration configured to emit the processed sound into the ear of a user;
wherein the one or more sensors is configured to be positioned substantially in the ear together with at least a part of the hearing aid, wherein the one or more sensors is configured as biometrical sensors configured for recording health data of a hearing aid user, wherein further, the hearing aid comprises a wireless communication interface configured to transmit at least the biometrical signals recorded by the one or more biometrical signals to an auxiliary device, wherein further the hearing aid comprises a behind the ear part having said signal processor, a battery and the one or more microphones, wherein the behind the ear part is connected to an in-the-ear part via a wire configured to allow communication between the behind the ear part and the in-the-ear part, wherein the in-the-ear part comprises the one or more biometrical sensors;
wherein the in-the-ear part comprises the speaker unit configuration, wherein at least a part of the speaker unit configuration is in communication with and/or in direct contact with the one or more biometrical sensors, wherein each of the one or more biometrical sensors is arranged in connection with the speaker unit configuration at a printed circuit board directly at a receiver of the speaker unit configuration or at a printed circuit board in close proximity to or directly connected to the receiver of the speaker unit configuration;
wherein at least a part of the speaker unit configuration and a least a part of a dome of the hearing aid comprises one or more sensor parts of the one or more sensors, wherein the speaker unit configuration at least comprises the printed circuit board for providing electrical communication for the data recorded by the one or more sensors; and
wherein at least one emitter part of a biometrical sensor is arranged in connection with the speaker unit configuration, and at least one detector part of a biometrical sensor is arranged in connection with the dome, wherein the detector is configured as a photo sensitive material of the dome.
