Wire Lead Anchor With Tissue-Piercing Jaws to Prevent Slippage
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Solution Overview
Problem
Existing wire lead anchoring adaptors for electrical nerve stimulation assemblies are insecure and prone to slippage, making precise placement of electrode heads for pain suppression difficult and ineffective.
Innovation Solution
An anchoring adaptor with a plastic living hinge, jaws, lever arms, and legs with protuberances that securely grasp and anchor the wire lead by piercing through fascia and muscle tissue, utilizing a nose component for additional anchoring within a Tuohy needle aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If commonly known wire lead anchoring adaptors are used, then the device complexity is reduced, but the reliability of wire lead anchoring deteriorates due to slippage and insecurity
Solution Approach 1:
The anchoring adaptor is divided into multiple functional segments: a body portion with tissue-piercing legs, a separate electrode head, and a wire lead anchoring mechanism with jaws. This segmentation allows each component to perform its specific function optimally while maintaining overall system reliability.
Solution Approach 2:
The legs of the adaptor are designed to pierce the tissue and establish anchoring points before the electrode head is positioned and before the wire lead is secured. This preliminary action ensures that the adaptor is firmly anchored to the tissue, preventing slippage during subsequent positioning operations.
2Manufacturing precision
If the wire lead is anchored in the fascial tissue, then the electrode head placement precision is improved, but the ease of operation deteriorates due to difficult adaptor installation
Solution Approach 1:
The adaptor's legs automatically pierce the tissue and anchor themselves when the adaptor is inserted. The wire lead anchoring mechanism uses the natural tension and positioning of the wire to engage the jaws and secure the lead without requiring additional manual manipulation or complex installation procedures.
3Reliability
If the anchoring adaptor uses multiple components (hinge, jaws, lever arms, legs), then the wire lead anchoring reliability is improved, but the device complexity increases
Solution Approach 1:
Multiple functional components (hinge mechanism, jaws for wire grasping, lever arms for actuation, and legs for tissue anchoring) are merged into a single integrated adaptor body. This consolidation provides reliable wire lead securing through coordinated action of all components while simplifying the overall device structure and reducing the number of separate parts that would need to be assembled.
Data Source
AI summary
An adaptor for anchoring wire lead components of electrical nerve stimulation assemblies, the adaptor incorporating a left jaw; the adaptor further incorporating a right jaw; the adaptor further incorporating a left arm having a proximal end, a distal end, and a right side; the adaptor further incorporating a right arm; the adaptor further incorporating an upper left channel opening rightwardly; the adaptor further incorporating an upper right channel opening leftwardly; the adaptor further incorporating a lower left channel opening rightwardly; the adaptor further incorporating a lower right channel opening leftwardly; and the adaptor further incorporating a hinge which is fixedly attached to or formed wholly with the proximal ends of the left arm, the right arm, the left jaw, and the right jaw.