Cochlear Implant Headpiece Control Interface
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Solution Overview
Problem
Current neural stimulation systems, such as cochlear implants, face challenges in patient control due to small and inaccessible buttons on the sound processor unit, particularly for elderly patients with motoric impairments, and the inconvenience of carrying additional remote control devices.
Innovation Solution
A neural stimulation system with a manually operable user interface on the headpiece, providing a larger surface area for control elements such as buttons or touch-sensitive surfaces, allowing patients to conveniently control sound processor functions like program selection and loudness without needing to see or directly touch the controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If buttons are placed on the sound processor unit, then patient control is enabled, but the buttons become difficult to use due to limited space and poor accessibility
Solution Approach 1:
The system is divided into two separate functional units: a sound processor unit for audio processing and a headpiece for user control. This segmentation allows the control interface to be relocated to the headpiece, which has sufficient surface area and accessibility, while the sound processor unit focuses on audio processing functions.
Solution Approach 2:
The headpiece acts as an intermediary device between the patient and the sound processor unit. It provides a remote control interface that communicates with the sound processor unit via a cable connection, enabling patients to control the sound processor without directly interacting with its buttons.
2Ease of operation
If buttons are made larger for easier use, then accessibility improves, but the limited space on the sound processor housing cannot accommodate them
Solution Approach 1:
By separating the control functions from the sound processor unit and relocating them to the headpiece, the invention resolves the space constraint. The headpiece has adequate housing surface area to accommodate larger, more accessible control elements without compromising the compact design of the sound processor unit.
3Ease of operation
If a remote control accessory is used, then patient control is improved, but the device must be carried around in addition to the sound processor
Solution Approach 1:
The control interface is merged with the headpiece, which is already an essential component of the cochlear implant system that must be worn on the patient's head. This integration eliminates the need for a separate remote control accessory, reducing the total number of devices the patient must carry and manage.
Solution Approach 2:
The headpiece serves multiple functions: it provides the transcutaneous signal transmission for the cochlear implant and simultaneously serves as the control interface for the sound processor unit. This multi-functionality consolidates control capabilities into an existing essential component rather than requiring an additional dedicated remote control device.
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
Enables patients to easily and intuitively control the sound processor unit by using the headpiece, which is easily accessible and offers a larger surface for multiple controls, improving usability and accessibility, especially for those with motor impairments.
Implementation Method 1
a signal transmission unit for transmitting the neural stimulation signal via a transcutaneous (typically wireless) link to a signal receiving unit of the implantable cochlear stimulator (the transmission unit and the receiving unit usually are coils)
Implementation Method 2
a headpiece that is fixed (typically by magnetic forces) at the patient's head
Data Source
AI summary
A neural stimulation system comprises a microphone arrangement for capturing an audio signal from ambient sound, a sound processor unit, a headpiece, and an implantable neural stimulator, the sound processor unit comprising a housing to be worn behind a patient's ear or at a patient's body, and a signal processing unit within the sound processor unit housing for generating a neural stimulation signal from the captured audio signal, the sound processor being communicatively coupled to the headpiece for supplying the neural stimulation signal to the headpiece, the headpiece comprising a housing separate from the housing of the sound processor and to be fixed at the patient's head, a signal transmission unit for transmitting the neural stimulation signal to a signal receiving unit of the implantable cochlear stimulator, and a user interface for controlling operation of the sound processor unit.