Encapsulated Receiver Ear Tip for Hearing Aid Maintenance
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Solution Overview
Problem
Hearing devices with receiver-in-canal (RIC) technology face issues due to wax and debris infiltration, leading to device malfunction and the need for frequent cleaning or replacement, which is difficult for users due to the small size and complexity of components.
Innovation Solution
The development of an ear tip with an encapsulated receiver that allows for easy removal and replacement, featuring a resilient ear interface portion and a body member with a connector interface for secure electrical connection, providing a solution for wax and debris issues while offering shock protection and vibration isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver is completely disposed in a RIC housing with permanent electrical cable attachment, then the device structure is stable and secure, but the ear tip becomes difficult to remove and replace for cleaning and maintenance
Solution Approach 1:
The hearing device is divided into separable components: the RIC housing with permanent cable attachment and the removable ear tip assembly. The ear tip assembly includes the body member, ear interface portion, and receiver as an integrated unit that can be easily detached from the RIC housing, allowing users to remove and replace the ear tip for cleaning without affecting the stable RIC housing structure.
2Device complexity
If the receiver is partially disposed in housing with integral nozzle, then the device complexity is reduced, but the ear tip and receiver components become smaller and more difficult to clean and maintain
Solution Approach 1:
The ear tip assembly is designed as a separate removable unit from the RIC housing, consolidating the receiver, body member, and ear interface portion into one serviceable package. This allows the entire ear tip assembly to be removed and cleaned as a single unit, making maintenance easier despite the compact integration of components within the assembly itself.
Solution Approach 2:
The ear tip assembly is designed to be easily removable by users without requiring professional service. The simple attachment and detachment mechanism between the ear tip assembly and RIC housing enables users to perform their own cleaning and maintenance tasks, reducing the need for technician intervention.
3Device complexity
If the ear tip includes integrated receiver and body member, then the number of components is reduced, but the ear tip becomes more susceptible to wax and debris infiltration affecting multiple components simultaneously
Solution Approach 1:
The ear tip assembly containing the integrated receiver and body member is extracted as a separate removable unit from the RIC housing. This design allows the entire assembly to be removed and cleaned together, addressing the wax infiltration issue by enabling complete removal of the affected components for thorough cleaning, rather than attempting to clean individual integrated parts in place.
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
Facilitates user-friendly servicing and maintenance by enabling easy removal of the ear tip, reducing the need for professional intervention, and providing a cost-effective design without the need for additional components like nozzles, while enhancing the device's usability and performance.
Implementation Method 1
The ear tip includes a resilient ear interface portion configured to be disposed at least partially in the user's ear canal
Data Source
AI summary
An ear tip for a hearing device includes a body member having a receiver retention portion that is communicably coupled to a sound port. The receiver retention portion is configured to receive and capture a receiver such as a balanced armature receiver. An electrical interface of the receiver is accessible via an opening in the receiver retention portion. The ear tip also includes an ear interface portion that is disposed at least partially about the body member. The ear interface portion is configured to be disposed in a user's ear canal. The ear interface portion and the body member are integrally formed as a unitary member.