In-Ear Hearing Aid Transducer Layout for Sensor Integration

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Solution Overview

Problem

In-the-ear hearing aid devices with added sensors and electronic components face issues of increased size, leading to discomfort and inability to fit within the ear canal, especially when components are placed outside the capsule, and there is a need for a solution to address this without significantly increasing the device's size.

Innovation Solution

Integrating sensors and active electronic components within the transducer air volume of the electro-acoustic transducer, maintaining the device's size by utilizing existing air volume and ensuring fluid connection with the sound active part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If sensors and additional electronic components are placed in the in-the-ear unit, then functionality is improved, but the size of the in-the-ear unit increases

Engineering Contradiction:

ImprovefunctionalityVSAvoidsize of in-the-ear unit

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent integrates sensors and electronic components within the transducer air volume, effectively nesting additional functionality inside the existing transducer structure. This allows components to be housed within the capsule's internal air space rather than adding external volume, resolving the contradiction between enhanced functionality and compact size.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The transducer air volume serves multiple functions: it maintains acoustic performance for sound transmission while simultaneously housing sensors and electronic components. This multi-functional use of the same space allows the device to provide both hearing aid functionality and additional sensing capabilities without increasing overall size.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If the size of the in-the-ear unit increases, then more components can be accommodated, but comfort and ability to fit in the ear canal deteriorate

Engineering Contradiction:

Improvenumber of componentsVSAvoidcomfort and fit

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

By nesting sensors and electronic components within the existing transducer air volume and capsule structure, the patent accommodates additional components without increasing the external dimensions of the in-the-ear unit. This maintains the device's ability to fit comfortably in the ear canal while providing enhanced functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent utilizes the three-dimensional space within the transducer air volume and capsule interior to house components, rather than expanding the device externally. This internal spatial utilization allows component integration without increasing the footprint or length of the in-the-ear unit, preserving comfort and fit.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If components are placed outside the capsule, then integration is simplified, but the device size increases and acoustic performance may be affected

Engineering Contradiction:

Improveintegration simplicityVSAvoiddevice size

Core Design Contradiction:

Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent places sensors and electronic components inside the capsule within the transducer air volume, nesting them within the existing acoustic structure. This internal placement maintains acoustic performance by keeping components within the established acoustic boundaries while avoiding external size increases.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent designates specific regions within the transducer air volume and capsule interior for component placement, creating localized zones for electronics that do not interfere with the overall acoustic function. This localized integration allows for simplified manufacturing while maintaining acoustic performance and compact size.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution allows for the integration of additional components without increasing the device's size, providing improved comfort and functionality, including health monitoring and environmental sensing, while maintaining acoustic performance.

Implementation Method 1

The transducer air volume is air volume which is enclosed by said capsule and which is in fluid-connection with said transducer sound active part

Methodology Applied

Scientific EffectFluid connection:

Data Source

PatentUS20260046556A1In-the-ear hearing aid device, a hearing aid, and an electro-acoustic transducer

Publication Date: 2026.02.12 OTICON

AI summary

An in-the-ear hearing aid device is disclosed. The device at least one electro-acoustic transducer, and at least one sensor or at least one active electronic component. The at least one electro-acoustic transducer comprises a capsule enclosing a transducer sound active part and a transducer air volume. The transducer air volume is air volume which is enclosed by the capsule and which is in fluid-connection with the transducer sound active part. At least a portion of the at least one sensor or of the at least one active electronic component is provided within the transducer air volume.