Angled Orthopedic Plate for Precise Bone Compression
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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 conventional plates fail to effectively orient screws for optimal bone stabilization.
Innovation Solution
The implant features angled formations, such as tabs or holes, oriented at 30° to 60° angles to facilitate screw insertion, allowing for precise compression and stabilization of bone parts, with adjustable angles for different pathologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional orthopedic plates with perpendicular screw holes are used, then the plate structure is simple and easy to manufacture, but the compression between bone parts is not precise or effective
Solution Approach 1:
The patent introduces angled tabs that extend outward from the plate body at specific angles (30-60 degrees), transforming the traditional planar screw hole arrangement into a three-dimensional angled configuration. This dimensional change allows screws to apply compression forces in precise directions while maintaining a relatively simple plate body structure.
Solution Approach 2:
The plate is segmented into a main body and separate angled tabs. Each tab can be independently positioned and angled to provide optimal compression direction for specific bone anatomy, while the main plate body remains simple for manufacturing. The tabs act as independent functional elements that can be selectively used.
2Reliability
If angled tabs are added to the plate to achieve precise compression, then the compression effectiveness is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The angled tabs are pre-formed during plate manufacturing at precise angles (30-60 degrees) relative to the plate body. This preliminary action ensures that when the plate is implanted, the screws can immediately apply compression in the correct direction without requiring additional intraoperative manipulation or adjustment of the tab angles.
Solution Approach 2:
The patent specifies optimal angle ranges (30-60 degrees) for the tabs based on biomechanical considerations. By pre-determining these angular parameters during design and manufacturing, the plate achieves reliable compression effectiveness while avoiding the complexity of adjustable or variable-angle mechanisms.
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.