Predictive Earpiece Design Using 3D Scanning and Finite Element Analysis
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Solution Overview
Problem
Existing hearing device technologies face challenges in predicting earpiece designs for optimal consumer fit, leading to inefficiencies in development, manufacturing, and user satisfaction due to poorly fitting earpieces.
Innovation Solution
A method utilizing 3D scan data and finite element analysis to predictively design personalized earpieces, ensuring optimal coupling and comfort by evaluating earpiece configurations based on coupling data and adjusting parameters such as contact force and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional earpiece design methods are used, then development and manufacturing proceed with standard processes, but fit quality is poor and user comfort is compromised
Solution Approach 1:
The patent performs finite element analysis and 3D scanning during the design phase to predict and optimize earpiece fit before manufacturing. This preliminary action allows the earpiece configuration to be customized based on individual ear anatomy, improving fit quality without requiring complex post-manufacturing adjustments
Solution Approach 2:
The patent creates a digital 3D copy of the user's ear anatomy through scanning and uses this copy to simulate and optimize earpiece fit through virtual modeling. This digital copying approach enables precise fit prediction without requiring multiple physical prototypes or trial fittings
2Reliability
If personalized earpiece designs are created for each user, then fit quality and user comfort improve, but development time and manufacturing costs increase
Solution Approach 1:
The patent replaces physical trial-and-error fitting processes with computational finite element analysis and 3D modeling. This substitution allows virtual testing of earpiece configurations on digital ear models, eliminating the need for multiple iterative physical prototypes and reducing development time while maintaining personalized fit quality
Solution Approach 2:
The patent optimizes earpiece design parameters such as contact force, pressure distribution, and geometric configuration based on finite element analysis results. By adjusting these parameters in the virtual model before manufacturing, the system achieves optimal comfort and fit without requiring time-consuming physical iterations
3Adaptability or versatility
If multiple trial fittings are conducted to achieve proper earpiece fit, then customization improves, but user frustration and rejection rates increase
Solution Approach 1:
The patent performs comprehensive 3D scanning and finite element analysis during the initial design phase to predict the optimal earpiece configuration before the user receives the device. This preliminary customization ensures that the first fitted earpiece is likely to be comfortable and proper, reducing user frustration and rejection rates associated with multiple trial fittings
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
This approach significantly reduces the likelihood of uncomfortable earpieces, decreases development and manufacturing costs, and enhances user acceptance by ensuring a proper fit on the first attempt, thereby improving hearing device performance.
Implementation Method 1
The earpiece configuration can be based on finite element analysis of the 3D scan data
Data Source
AI summary
A method of predictive design of an earpiece for a user, includes: obtaining 3D scan data of an ear; obtaining a model earpiece with an earpiece configuration based on an analysis of the 3D scan data; determining coupling data indicative of a coupling of the model earpiece; evaluating the earpiece configuration based on the coupling data; and providing a personalized earpiece based on an output of the evaluation.