# US 2019/0379987 A1 · Method of manufacturing a component of a hearing device and component

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- Number: US 2019/0379987 A1
- Document ID: US20190379987A1
- Status: Published application
- Kind: A1
- Application number: 16/435,753
- Filed: 2019-06-10
- Published: 2019-12-12
- Earliest claimed: 2018-06-08
- Assignees: Sivantos Pte. Ltd.
- Applicants: Sivantos Pte. Ltd.
- Inventors: PATRICK BREITENFELD; MICHAEL BULK
- Web page: https://patentgrep.com/patent/US20190379987A1

## CPC

- H04R 25/658: {Manufacture of housing parts}
- H04R 25/652: {Ear tips; Ear moulds (hybrid ear moulds or post-processing thereof for their customisation H04R25/659)}
- B33Y 50/00: Data acquisition or data processing for additive manufacturing
- G01B 11/24: for measuring contours or curvatures
- H04R 25/02: adapted to be supported entirely by ear
- H04R 2225/77: Design aspects, e.g. CAD, of hearing aid tips, moulds or housings
- 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)
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS

## Abstract

In a method for manufacturing a component for a hearing device, at least one ear canal of a wearer for whom the hearing device is intended is measured and measurement data of the ear canal is then generated. A first value for a material property of at least a first demarcated region of the component is set based on the measurement data. The component is prepared in such a way that the material property has the first value for at least the first demarcated region of the finished component.

## Claims

### Claim 1

A method of manufacturing a component of a hearing device, which comprises the steps of:
measuring at least one ear canal of a wearer for whom the hearing device is intended resulting in a generation of measurement data relating to the ear canal; and
setting a first value for a material property of at least a first demarcated region of the component based on the measurement data, and the component is prepared in such a way that the material property has the first value for at least the first demarcated region of the component.

### Claim 2 (depends on 1)

The method according to claim 1, which further comprises measuring the ear canal directly by optical and/or acoustic means in order to generate the measurement data.

### Claim 3 (depends on 1)

The method according to claim 1, which further comprises creating an impression of at least the ear canal in order to generate the measurement data, and the measurement data is generated based on the impression.

### Claim 4 (depends on 1)

The method according to claim 1, which further comprises setting a value of an elastic modulus as the first value for the material property.

### Claim 5 (depends on 1)

The method according to claim 1, wherein for purposes of setting the first value of the material property, selecting the first value from a plurality of predetermined raster values based on the measurement data.

### Claim 6 (depends on 4)

The method according to claim 4, which further comprises setting a second value of the material property based on the measurement data, which is different from the first value, for a second demarcated region of the component that is separate from the first demarcated region, and wherein the component is prepared in such a way that the material property has the second value for at least the second demarcated region of the component.

### Claim 7 (depends on 6)

The method according to claim 6, which further comprises:
setting the first value of the elasticity modulus to be greater than the second value; and
preparing a first region of the component as the first demarcated region, which forms a free end of the component.

### Claim 8 (depends on 7)

The method according to claim 7, wherein:
the first region is prepared as the first demarcated region of the component, that forms the free end to be worn in the ear canal when the component is worn as intended; and
a second region is prepared as the second demarcated region of the component that, when the component is worn as intended using the first demarcated region, is at a distance from a wearer's hearing system.

### Claim 9 (depends on 8)

The method according to claim 8, which further comprises:
using the measurement data to set a third value, different from the second value, for an elasticity modulus of a third demarcated region of the component that is separate from the second demarcated region; and
preparing the component in such a way that the elasticity modulus has the third value for the third demarcated region of the component manufactured.

### Claim 10 (depends on 9)

The method according to claim 9, which further comprises:
setting the third value for the elasticity modulus to be greater than the second value; and
preparing a third region that forms a further free end of the component as the third demarcated region of the component.

### Claim 11 (depends on 6)

The method according to claim 6, which further comprises preparing at least the first demarcated region of the component by means of a 3D printing process that adopts the first value for the material property.

### Claim 12 (depends on 11)

The method according to claim 11, which further comprises preparing the second demarcated region of the component by means of the 3D printing process that adopts the second value for the material property, and wherein the first demarcated region and the second demarcated region are joined together for preparing the component.

### Claim 13 (depends on 11)

The method according to claim 11, which further comprises preparing the first demarcated region and the second demarcated region of the component integrally by means of the 3D printing process, and the first value and the second value, respectively, of the material property are set for the first demarcated region and the second demarcated region via a corresponding parameter of the 3D printing process.

### Claim 14 (depends on 1)

The method according to claim 1, wherein the component is at least one part of a housing, an earmold and/or an earpiece.

### Claim 15

A component for a hearing device, the component comprising:
a component body having at least a first demarcated region with a material property, wherein at least one ear canal of a wearer for whom the hearing device is intended is measured resulting in a generation of measurement data relating to the ear canal, a first value for the material property of at least said first demarcated region is set based on the measurement data, and said component body being prepared in such a way that the material property has the first value for at least said first demarcated region of said component body.
