Spring-Loaded Burr Hole Lead Securing Arms
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Solution Overview
Problem
Existing burr hole devices for deep brain stimulation lack adequate stabilization of leads within the burr hole, often requiring cumbersome and precise manipulations due to their simple design, which can lead to positioning errors and reduced efficacy of the therapy.
Innovation Solution
A burr hole kit comprising a base structure, a lead securing member with spring-loaded arms, and a positioning tool that allows for easy insertion and securement of the lead within the burr hole, providing stabilization without complex manipulation of small elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple burr hole devices are used, then device complexity is reduced, but lead stabilization capability deteriorates
Solution Approach 1:
The burr hole device is divided into multiple functional components: a base structure with bone engagement features, a lead securing member with clamping arms, and a positioning tool. This segmentation allows each component to perform its specific function effectively while maintaining overall device reliability without excessive complexity.
Solution Approach 2:
The lead securing member incorporates movable clamping arms that can dynamically adjust to grasp and stabilize the lead. The arms transition from an open state during insertion to a closed state for securement, providing adaptive stabilization that improves reliability without requiring overly complex mechanisms.
2Ease of manufacture
If simple burr hole devices are used, then ease of manufacture is improved, but ease of operation deteriorates due to cumbersome manipulation
Solution Approach 1:
The positioning tool is designed to be inserted through the lead securing member, with the tool's distal end receiving within the clamping arms. This nesting arrangement allows compact storage and simplified assembly while enabling easy operational manipulation during the surgical procedure.
Solution Approach 2:
The positioning tool serves as an intermediary device that facilitates the insertion and positioning of the lead through the lead securing member. By providing a dedicated tool for manipulation, the device becomes easier to operate without complicating the manufacturing process.
3Device complexity
If simple burr hole devices are used, then device complexity is reduced, but positioning precision deteriorates
Solution Approach 1:
The base structure incorporates specific bone engagement features at localized positions to ensure precise positioning relative to the skull. The lead securing member also has localized clamping points that precisely secure the lead in the desired position, achieving positioning precision without requiring overall device complexity.
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 solution provides stable and secure positioning of leads within the burr hole, reducing the risk of positioning errors and enhancing the efficacy of deep brain stimulation procedures by simplifying the lead securing process.
Implementation Method 1
at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together
Data Source
AI summary
In one embodiment, a kit, for securing a lead or cannula within a burr hole, comprises: a base structure to be positioned immediately adjacent to or partially within the burr hole; a lead securing member for securing the lead within the burr hole, the lead securing member comprising a first arm structure and a second arm structure, at least one spring loaded structure adapted to exert a force to bring the first arm structure and the second arm structure together; and a positioning tool having a distal end adapted to be inserted within the lead securing member; wherein when the distal end of the positioning tool is positioned within the lead securing member, the distal end holds the first and second arm structures a sufficient distance apart to receive a lead or a cannula between the first and second arm structures.