Vertebral Endplate Processing Device with Synchronized Expansion
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Solution Overview
Problem
Conventional vertebral body endplate processing devices require multiple surgical instruments and cumbersome steps, increasing operation time and risk, and struggle to adjust for irregular endplate heights between vertebral bodies during spinal fusion procedures.
Innovation Solution
A vertebral body endplate processing device integrating a handle with a vertical opening mechanism and a horizontal expansion mechanism, allowing for simultaneous expansion of the intervertebral space and endplate processing, with adjustable components for precise operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional expansion instruments are used to expand the intervertebral space, then the space expansion effect is achieved, but multiple separate instruments and cumbersome steps are required, increasing operation time and risk
Solution Approach 1:
The patent combines the expansion function and endplate processing function into a single integrated device. The processing mechanism includes processing portions that can process endplates while the horizontal expansion mechanism expands the intervertebral space, eliminating the need for multiple separate instruments and reducing operational complexity
Solution Approach 2:
The device is designed with multi-functionality, where the same device can both expand the intervertebral space through the horizontal expansion mechanism and process the endplates through the processing mechanism with multiple processing portions, making it a universal tool that replaces several specialized instruments
2Productivity
If the intervertebral space is expanded during endplate processing, then the space is loosened and increased, but the expansion instrument needs to be adjusted in time, affecting subsequent processing operations
Solution Approach 1:
The device allows expansion and processing to occur simultaneously without requiring sequential adjustment. The processing portions remain in contact with the endplate while the horizontal expansion mechanism expands the space, maintaining processing continuity without interruption
3Reliability
If multiple surgical instruments are used for endplate processing, then thorough processing can be achieved, but the steps become cumbersome and operation risk increases
Solution Approach 1:
The device integrates multiple processing functions into a single instrument system. The processing mechanism includes multiple processing portions that can simultaneously or sequentially process different areas of the endplate, maintaining thoroughness while simplifying the overall procedure by reducing the number of instrument changes and steps
Data Source
AI summary
A vertebral end plate processing device includes a handle, a vertical opening mechanism, a horizontal expansion mechanism and a processing mechanism. When the processing device is in a non-working state, the vertical opening mechanism and the horizontal expansion mechanism maintain a contracted state, and a processing portion is located within a vertical space between opening members. When the processing device is in a working state, the opening members of the vertical opening mechanism are in contact with a bone surface of a vertebral body and vertically open same. An arc-shaped expansion block of the horizontal expansion mechanism drives a conveying member for horizontal expansion so that the processing portion is horizontally removed from the vertical space of the opening members and is in contact with the bone surface of the vertebral body. A control portion controls the conveying member to move.