Cochlear Implant Fixation Elements with Independent Detachment
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Solution Overview
Problem
Conventional cochlear implant fixation techniques are inflexible, requiring multiple versions of implants to accommodate different surgical preferences, which complicates manufacturing and surgical procedures.
Innovation Solution
A cochlear implant design featuring independently removable fixation elements, including bone bed projections and anchor receivers, allowing surgeons to choose between bone bed fixation, bone anchor fixation, or osseointegration, with tools for easy detachment during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple versions of cochlear implants are provided to accommodate different surgical preferences, then adaptability to various fixation techniques is improved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The cochlear implant housing is designed with multiple fixation element types (bone bed projections, anchor receivers, osseointegration elements) integrated into a single universal device. This allows the same implant model to accommodate different surgical preferences and fixation techniques without requiring multiple versions, thereby improving adaptability while maintaining consistent device complexity.
Solution Approach 2:
The fixation elements are designed as separable components that can be independently attached or removed from the housing. This segmentation allows surgeons to select and attach only the fixation elements needed for their preferred technique, providing versatility while keeping the base housing design standardized and manageable.
2Adaptability or versatility
If multiple versions of cochlear implants are provided to accommodate different surgical preferences, then adaptability to various fixation techniques is improved, but manufacturing complexity increases
Solution Approach 1:
By providing all fixation element types in a single universal implant model, the manufacturing process is simplified compared to producing multiple specialized versions. The standardized housing design with integrated attachment mechanisms allows for consistent manufacturing procedures, while the selectable fixation elements provide the needed versatility.
3Ease of operation
If fixation elements are made independently detachable, then ease of operation during surgery is improved, but device complexity increases
Solution Approach 1:
The fixation elements are designed as independent, detachable components with standardized attachment mechanisms. This segmentation allows surgeons to easily attach or remove specific fixation elements during surgery using simple tools, greatly improving ease of operation. The modular design manages complexity by using repeated, standardized connection interfaces rather than complex integrated systems.
Solution Approach 2:
The connector design includes intermediate attachment mechanisms that simplify the coupling between fixation elements and the housing. These standardized interfaces act as intermediaries that enable easy attachment and detachment without requiring complex surgical procedures or specialized tools beyond basic surgical instruments.
4Adaptability or versatility
If fixation elements are made independently detachable, then adaptability during surgery is improved, but device complexity increases
Solution Approach 1:
The independent detachability of fixation elements provides maximum adaptability during surgery, allowing surgeons to configure the implant according to patient-specific needs and surgical preferences. The segmented design with standardized interfaces manages complexity through modularity, where each fixation element type can be independently selected and attached.
Solution Approach 2:
The fixation system is designed to be dynamically configurable during surgery rather than fixed in advance. Surgeons can attach, detach, or replace fixation elements based on intraoperative findings and preferences, providing dynamic adaptability. This dynamic approach manages complexity by using simple, reversible attachment mechanisms rather than permanent fixed configurations.
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 surgeons to adapt fixation techniques as needed, simplifying surgical procedures and reducing the need for multiple implant versions, while ensuring secure implantation.
Implementation Method 1
The headpiece and the cochlear implant may include respective positioning magnets that are attracted to one another, and that maintain the position of the headpiece transmitter over the implant receiver.
Data Source
AI summary
A cochlear implant includes a cochlear lead, a housing, an antenna, a stimulation processor operably connected to the antenna and to the cochlear lead, a first fixation element, a second fixation element with a different configuration than the first fixation element, and a connector configured to simultaneously connect the first and second fixation elements to the housing in such a manner that the first and second fixation elements are independently detachable from the housing.