Angled Orthopedic Plate for Precise Bone Compression Fixation
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Solution Overview
Problem
Existing orthopedic implants struggle to provide precise and efficient compression between bone parts, particularly in applications involving the hand, foot, and spine, where existing technologies lack the ability to orient screws at specific angles for optimal bone fixation.
Innovation Solution
The orthopedic plate incorporates angled formations, such as tabs or holes, oriented at 30° to 60° angles to facilitate screw insertion, allowing for precise compression and adaptation to different pathologies by adjusting the angle during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If screws are inserted perpendicular to the plate plane using conventional holes, then the plate structure remains simple and manufacturing is easy, but compression between bone parts cannot be applied in precise directions
Solution Approach 1:
The plate is segmented into multiple tabs protruding from the plate body, each tab containing a hole for screw engagement. This segmentation allows each tab to be independently oriented at specific angles, enabling precise compression directions while keeping the overall plate structure modular and manageable
Solution Approach 2:
The invention transitions from a two-dimensional plate with perpendicular screw holes to a three-dimensional structure with tabs oriented at various angles (30°-60°) relative to the plate plane. This dimensional change enables screws to apply compression forces in multiple precise directions, resolving the contradiction between manufacturing precision and device complexity
2Adaptability or versatility
If the plate uses standard perpendicular screw holes, then ease of manufacture is maintained, but adaptability to different pathologies and bone structures is limited
Solution Approach 1:
Different tabs are provided with holes oriented at different angles (30°-60°) relative to the plate plane, creating local variations in screw orientation capability. This allows the surgeon to select the appropriate tab and angle for specific pathological conditions and bone structures, enhancing adaptability while maintaining a relatively simple manufacturing process
Solution Approach 2:
The plate design incorporates multiple tabs with varying angles, providing dynamic adaptability to different surgical scenarios. The surgeon can dynamically select which tab to use based on the specific pathology and bone alignment requirements, making the device versatile without significantly complicating manufacturing
3Measurement precision
If angled tabs are added to the plate for precise screw orientation, then compression precision is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The tabs with precisely angled holes (30°-60°) are pre-formed during plate manufacturing, eliminating the need for complex intraoperative adjustments. This preliminary action ensures precise screw orientation is achieved through the pre-configured tab angles, balancing manufacturing complexity with operational precision
Data Source
AI summary
The invention relates to a plate fixed between two bone parts by way of screws engaged in holes formed in the thickness of said plate. The plate comprises an angled member or rib which is inclined according to an angle of between about 30° and 60° in relation to the plane defined by the plate. The angled member or rib has a hole for engaging a screw and is located in the central part of the width, over a determined part of the length of the plate, so that the screw brings the two bone parts into a compressive position.