Self-Fitting Hearing Device with Automated Feedback Risk Assessment

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Solution Overview

Problem

Current hearing aid fitting processes require significant time and expertise from hearing care professionals to manage acoustic feedback, which can be time-consuming and inefficient, especially when fitting devices with moderate to high gain.

Innovation Solution

A method and system that allows for self-fitting of hearing devices without a hearing care professional's involvement, using a graphical user interface, sensors to measure user reactions, and artificial intelligence to assess the correct physical fit and feedback risk, automatically adjusting settings to prevent feedback issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual feedback management tests are performed by an HCP, then feedback risk is reduced, but fitting time increases

Engineering Contradiction:
Improvefeedback risk managementVSAvoidfitting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs acoustic feedback measurements automatically as background processes without requiring HCP intervention. The hearing device itself conducts the measurements and assessments, enabling self-service operation that eliminates time-consuming manual tests while maintaining feedback risk management.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements automated feedback loops where acoustic feedback measurements are continuously performed, assessed, and used to adjust fitting parameters. This automated feedback mechanism replaces manual HCP testing with an autonomous system that manages feedback risk efficiently.

Inventive Principle:
Principle #23Feedback

2Productivity

If automated background processes are used for fitting, then fitting speed increases, but system complexity increases

Engineering Contradiction:
Improvefitting speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The hearing device integrates multiple functions into a single system: acoustic feedback measurement, physical fit assessment, hearing threshold estimation, and fitting parameter optimization. This multi-functionality enables automated background processes without requiring separate dedicated devices, managing complexity through consolidation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses an external device as an intermediary that coordinates the automated fitting process. The external device manages the background processes, assesses measurements, and communicates with the hearing device, distributing system complexity across multiple components rather than concentrating it in one place.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If HCP performs detailed feedback tests, then fitting accuracy improves, but ease of operation decreases

Engineering Contradiction:
Improvefitting accuracyVSAvoidoperation simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system performs detailed acoustic feedback measurements and hearing threshold estimations automatically without requiring HCP operation. Users simply wear the device while background processes conduct comprehensive assessments, maintaining high fitting accuracy while dramatically improving ease of operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary acoustic feedback measurements and assessments automatically during the fitting process before final parameter optimization. This preliminary action gathers necessary data in the background, allowing accurate fitting without requiring manual intervention at each step.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11785404B2Method and system of fitting a hearing device
Publication Date: 2023.10.10 OTICON
  • US11785404B2 patent drawing
  • US11785404B2 patent drawing
  • US11785404B2 patent drawing

AI summary

In a method of fitting of a hearing device having an input transducer and an output transducer, the method includes executing a fitting application on a graphical user interface of an external device in communication with the hearing device, detecting by measuring reactions of the user to picked-up sound, performing acoustic feedback measurements as a background process without a user's involvement, assessing the probability of a correct physical fit based on the position of the inserted hearing device, assessing feedback risk based on the correct physical fit assessment and the acoustic feedback measurements, and fine tuning fitting parameter of the hearing device based on the result of at least one of the detected reactions of the user, acoustic feedback measurements and saved, within the fitting application, personal information of the user.