Bone Plate Combination Holes for Locking and Dynamic Compression
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Solution Overview
Problem
Existing bone plating systems for fractures lack flexibility in providing both locking and non-locking capabilities, leading to inadequate dynamic compression and stabilization, particularly in complex fracture locations.
Innovation Solution
The development of bone stabilization systems featuring plates with combination openings that accommodate both locking and non-locking fasteners, allowing for dynamic compression and interfragmental stabilization, including textured and smooth surfaces for secure locking and sliding engagement, respectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional bone plating systems use separate locking and non-locking screw systems, then each screw type can perform its specific function (locking or dynamic compression), but the system complexity increases and requires multiple plate types or hole configurations
Solution Approach 1:
The patent implements combination holes that can accommodate both locking and non-locking screws through the same opening. The hole includes a threaded portion for locking screw engagement and a smooth portion for non-locking screw passage, allowing a single plate design to provide both locking and dynamic compression capabilities without requiring separate plate types or complex multi-hole configurations
Solution Approach 2:
The invention merges the functions of separate locking and non-locking screw holes into a single combination hole structure. The threaded portion and smooth portion are integrated within the same hole, enabling both screw types to be used in the same plate opening and reducing the overall number of distinct hole configurations needed
2Reliability
If locking screws are used to secure the plate to bone, then stable fixation is achieved, but dynamic compression capability is lost
Solution Approach 1:
The combination hole design enables dynamic functionality by allowing non-locking screws to pass through the smooth portion while the plate can move relative to the bone during healing. The threaded portion provides optional locking capability when needed, while the smooth portion maintains dynamic compression capability, making the system adaptable between static and dynamic fixation modes
3Adaptability or versatility
If non-locking screws are used for dynamic compression, then bone compression is achieved, but fixation stability is reduced
Solution Approach 1:
The combination hole structure acts as an intermediary that enables both locking and non-locking screws to function through the same opening. The threaded portion mediates locking screw engagement for stable fixation, while the smooth portion mediates non-locking screw passage for dynamic compression, allowing the surgeon to select the appropriate screw type based on the specific anatomical requirements
Data Source
AI summary
Devices, systems, and methods of bone stabilization. The bone stabilization system includes a mesh body. The mesh body includes a plurality of rings, with each of the rings defining a screw hole. Bridge portions extend between and interconnect the rings. The bridge portions have a reduced thickness compared to the rings. An elongate body may also extend from the mesh body. The elongate body defines at least one screw hole.