Spinal Lamina Protector With Rail-Guided Length Adjustment
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Solution Overview
Problem
After laminectomy, the spinal cord is exposed and prone to scar tissue or fibrosis due to the removal of the lamina, necessitating a protective device that is both stable and adjustable to fit varying vertebra sizes and surgical scenarios.
Innovation Solution
A spinal lamina protector comprising a first and second protection part with engaging and holding mechanisms that allow for adjustable length and enhanced stability, utilizing a latching mechanism with engaging rails and levers to secure the device to the vertebrae post-laminectomy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the protective device is designed with two or more components assembled to achieve length adjustability, then the adaptability to different vertebra sizes is improved, but the device complexity increases
Solution Approach 1:
The protective device is divided into a first protection part and a second protection part that can be detachably connected. Each part has engaging portions with engaging rails and holding portions that form a segmentation system, allowing the device to be assembled in different configurations to match various vertebra sizes while maintaining structural integrity.
Solution Approach 2:
The engaging portions are designed to slide along the engaging rails, providing dynamic adjustability. The holding portions can move along the rails to different positions and then lock into place, enabling the device to dynamically adapt to different length requirements while maintaining stability once positioned.
2Ease of operation
If the protective device uses a detachable connection mechanism with engaging rails and holding portions, then the ease of operation for adjustment is improved, but the device complexity increases
Solution Approach 1:
The engaging and holding mechanism is designed to be self-aligning and self-locking. The holding portions automatically engage with the engaging rails and can be easily positioned and locked without requiring complex tools or procedures, making the adjustment process intuitive and simple for the surgeon.
Solution Approach 2:
The engaging rails act as an intermediary mechanism between the first and second protection parts. They provide a guided path for the holding portions to slide and lock, simplifying the connection process while maintaining structural integrity without requiring complex fastening mechanisms.
3Reliability
If the protective device is designed as a single stable structure, then the reliability of spinal cord protection is improved, but the adaptability to different vertebra sizes deteriorates
Solution Approach 1:
The protective device is segmented into multiple parts that can be connected to form a complete protective structure. When assembled, the segments work together to provide stable protection equivalent to a single structure, while the modular nature allows adaptation to different vertebra sizes through selective assembly.
Solution Approach 2:
The first and second protection parts are designed to merge together through the engaging and holding mechanism, forming a unified protective structure that provides reliable spinal cord protection. The merging maintains structural integrity while allowing for size adaptation through different assembly configurations.
Data Source
AI summary
The invention discloses a spinal lamina protector. The spinal lamina protector comprises a first protection part and a second protection part. Specifically, the first protection part comprises a first engaging portion, a first holding portion and a supporting portion, and the supporting portion and the first holding portion form an engaging rail. The engaging rail makes a second engaging portion of the second protection part insert in, and a second holding portion of the second protection part holds the first engaging portion while the second engaging portion is in the engaging rail. Therefore, the abovementioned structure of the spinal lamina protector forms a stable and length-adjustable structure, even if a pressure is pressed on the spinal lamina protector.