Dynamic Bone Plate With Internal Pre-Tensioning for Fracture Micromotion
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Solution Overview
Problem
Current bone plate systems do not allow for internal pre-tensioning or dynamic loading, leading to inadequate compression and micro motion at the fracture site, hindering fracture healing through callus formation.
Innovation Solution
A dynamic bone plate system incorporating deformable members and coupling members that enable internal pre-tensioning and dynamic loading, allowing for controlled micro motion at the fracture site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid bone plate is used to secure bone segments, then structural strength and stability are improved, but compression at the fracture site is insufficient and micro motion is restricted
Solution Approach 1:
The bone plate incorporates deformable members that can dynamically adjust their stiffness and shape in response to applied loads, transitioning from a rigid structure to a dynamic system that adapts to physiological conditions during healing
Solution Approach 2:
The bone plate's mechanical parameters (stiffness, flexibility) are changed through the inclusion of deformable members that can alter their structural properties under load, enabling the plate to provide both initial strength and subsequent micro-motion capability
2Stability of the object's composition
If a rigid bone plate is used to secure bone segments, then stability is improved, but micro motion necessary for callus formation is restricted
Solution Approach 1:
The bone plate transitions from a static rigid structure to a dynamic system where deformable members enable controlled micro-motions while maintaining overall stability through their ability to deform and absorb energy
Solution Approach 2:
The deformable members function as flexible structural elements within the bone plate, allowing controlled deformation and micro-motion at the fracture site while maintaining the integrity and stability of the overall fixation system
3Force
If internal pre-tensioning is implemented in the bone plate, then compression at the fracture site is improved, but device complexity increases
Solution Approach 1:
The deformable members are integrated directly into the bone plate structure, merging the functions of the plate and the tensioning mechanism into a single unified component, thereby achieving pre-tensioning without proportionally increasing device complexity
Solution Approach 2:
The deformable members are designed to automatically generate and maintain pre-tensioning forces through their inherent elastic properties, eliminating the need for complex external tensioning mechanisms or additional adjustment procedures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates fracture healing through controlled micro motion and callus formation by providing internal pre-tensioning and dynamic loading capabilities.
Implementation Method 1
at least one deformable member received within the bone plate
Data Source
AI summary
Implants, guides, devices, system and corresponding instruments for use in securing two bone segments together are disclosed. More specifically, a dynamic bone plate system is disclosed. The plate system includes a bone plate with at least one deformable member that is received within the bone plate. The bone plate construct also includes at least one coupling member for engaging the at least one deformable member to connect it to the bone plate system. The bone plate system also includes a plurality of bone fasteners for attaching the bone plate to the two bone segments. Methods for using the dynamic bone plate system to secure two bone segments together are also disclosed.