X-Shaped Bone Plate Angular Screw Anchoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bone plates, such as X-shaped and double-T-shaped designs, lack rigid angular stability and efficient stress distribution, particularly during bending or torsion, leading to inadequate resistance to multiple directional stresses.
Innovation Solution
A bone plate with an X-shape featuring non-perpendicular plate boreholes for angularly stable screw anchoring, conical tapering for enhanced stability, and a design allowing screws to be inserted at angles to cross fractures, providing increased rotational and compressive stability with minimal invasiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an X-shaped bone plate with conventional boreholes is used, then the plate can be inserted into bone, but the screws cannot be rigidly and angularly stably anchored to the plate
Solution Approach 1:
The bone plate is divided into a main body and four separate extensions arranged in an X-shape. Each extension contains a borehole with angularly stable anchoring means, allowing independent optimization of each component while maintaining overall structural integrity. This segmentation enables rigid screw anchoring without increasing overall plate complexity.
Solution Approach 2:
The boreholes are oriented at specific angles relative to the plate's longitudinal axis, creating a multi-dimensional arrangement that enables angularly stable screw anchoring. The extensions protrude from the main body in three-dimensional space, allowing screws to be anchored at optimal angles for rotational stability while maintaining a relatively simple planar plate structure.
2Strength
If a double-T-shaped plate is used, then the plate structure is simplified, but the stress distribution during bending or torsion is poor and the plate can only resist compression in one direction
Solution Approach 1:
The bone plate employs an asymmetric X-shaped configuration with extensions of varying orientations. This asymmetric design creates multiple stress distribution pathways that enable the plate to resist bending and rotational forces from multiple directions, overcoming the limitation of symmetric designs like double-T-shaped plates that can only effectively resist unidirectional compression.
Solution Approach 2:
The X-shaped extensions protrude from the main body in three-dimensional space, creating a multi-dimensional structural framework. This three-dimensional arrangement provides superior stress distribution during bending and torsion compared to planar designs, enabling the plate to resist forces from multiple directions simultaneously while maintaining structural simplicity.
3Stability of the object's composition
If conventional plate boreholes are used, then the plate structure is simple, but rotational stability is insufficient and screws may collide when the plate is bent
Solution Approach 1:
The boreholes are segmented into distinct locations on separate extensions rather than being uniformly distributed. This segmentation allows each borehole to be positioned optimally for its specific function, preventing screw collision during bending while maintaining rotational stability through the distributed angular arrangement of the extensions.
Solution Approach 2:
The boreholes are arranged in three-dimensional space on extensions that protrude from the main body at various angles. This three-dimensional configuration prevents screw collision during plate bending while maintaining rotational stability, as the angular arrangement of extensions creates sufficient separation between borehole paths even when the plate is flexed.
Data Source
AI summary
A bone plate having a shape of an “X”. The bone plate includes an upper side, an underside facing the bone, a middle part and, adjoining thereon, a peripheral region, which encloses the four extensions of the “X” and in which four plate boreholes are accommodated. The plate boreholes have means, which are suitable for the rigid, angularly stable anchoring of bone screws which may be introduced therein.