Dual-Mode Speech Processor Module for Cochlear Implants
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Solution Overview
Problem
Conventional cochlear implant systems' speech processor units are prone to damage, especially when used by infants or in adverse environments, and are not suitable for a wide range of users due to their susceptibility to rough handling and environmental conditions.
Innovation Solution
A dual-mode speech processor module that can operate in both stand-alone and body-worn modes, housed in a protective case that provides protection from environmental factors such as fluid, dust, and electromagnetic interference, allowing the module to be worn on the body rather than behind the ear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the speech processor unit is worn behind the ear, then it provides convenient audio processing, but it is susceptible to damage from rough handling and environmental conditions
Solution Approach 1:
The speech processor unit is nested within a protective case that provides a protective enclosure. The case includes a compartment that houses the speech processor unit, with the unit positioned inside the case structure. This nesting arrangement protects the speech processor from rough handling and environmental damage while maintaining its functional accessibility.
Solution Approach 2:
The protective case incorporates a flexible seal that forms a protective barrier around the speech processor unit. The seal is configured to prevent ingress of fluid and dust into the case interior, creating a protected environment for the electronic components while allowing the case to flex for wearability.
2Reliability
If the speech processor unit is protected from environmental factors, then reliability improves, but the device complexity increases
Solution Approach 1:
The protective case serves multiple functions simultaneously: it provides mechanical protection from rough handling, environmental protection from fluid and dust ingress, and houses the speech processor unit. The case also includes a seal that prevents contamination while maintaining a compact structure. This multi-functionality reduces the need for additional separate protective components.
3Strength
If the speech processor unit is made robust for infants and adverse environments, then durability improves, but the ease of operation for children decreases
Solution Approach 1:
The speech processor unit is nested within the protective case structure, which provides a secure housing that prevents accidental damage by infants or children. The unit remains accessible within the case compartment, allowing for functional interaction while the outer case structure provides the necessary robustness and protection.
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 dual-mode speech processor module is more robust and suitable for use by a wide range of recipients, including infants and those in adverse environments, reducing the risk of damage and enhancing usability.
Implementation Method 1
a protective case that provides protection from environmental factors such as fluid, dust, and electromagnetic interference
Implementation Method 2
The external assembly typically comprises one or more microphones for detecting sound, a speech processing unit that converts detected sound, particularly speech, into an electrical coded signal, a power source, and an external transcutaneous transfer coil. The internal assembly typically comprises an internal transcutaneous transfer coil
Data Source
AI summary
A method for operating an external component of a cochlear implant hearing system. The external component includes a speech processor module operable in a stand-alone mode of operation and a body-worn mode of operation, and a protective case. The method includes operating the speech processor module in the stand-alone mode, determining when the speech processor module is mounted in the case, and operating the speech processor module in the body-worn mode in response to determining that the speech processor module is mounted in the case.