Compression Plate Delivery Device Strained Implantation
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Solution Overview
Problem
Current orthopedic compression plates fail to consistently bring bone fragments into close proximity and maintain a compressive load over time, leading to suboptimal healing due to rapid dissipation of compressive force as bone relaxes and remodels around the screws.
Innovation Solution
A delivery device that retains a compression plate in a strained condition using an elastic bridge member and a compression clip system, allowing the plate to be implanted in a biased state and maintaining compression by returning to its original shape post-implantation, with features like a male threaded rod and female threaded feature for controlled release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional compression plates are used to stabilize fractures, then bone fragments can be held in position, but the compressive load dissipates rapidly as bone relaxes and remodels around the screws
Solution Approach 1:
The compression plate incorporates a spring element that provides dynamic, continuous compression force. The spring maintains compressive load on the bone fragments throughout the healing process, adapting to bone relaxation and remodeling without losing compression, thereby resolving the contradiction between maintaining force and extending duration of action.
2Stability of the object's composition
If screws are inserted through holes in the plate to stabilize bone fragments, then the bone fragments can be held relative to one another, but gaps may exist between the bone fragments preventing close contact
Solution Approach 1:
The compression plate applies preliminary compressive force to bring bone fragments into close contact before final stabilization with screws. This preliminary action ensures precise approximation of bone fragments, eliminating gaps and creating optimal conditions for healing while maintaining stability throughout the healing process.
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
The solution ensures consistent and prolonged compression across the fracture line, facilitating faster and more uniform healing by maintaining the compressive load between bone fragments, even as the bone remodels.
Implementation Method 1
A delivery device delivers a compression plate to a fracture line in a bone. The delivery device includes a body that retains a compression plate in a strained condition
Implementation Method 2
A male threaded rod includes a head and a male stem having male threads. The female threaded feature includes a knob and a female stem having a passage with female threads. The male threads of the male threaded rod engage the female threads of the female threaded feature.
Data Source
AI summary
A delivery device delivers a compression plate to a fracture line in a bone. The delivery device includes a body that retains the compression plate in a strained condition, the body including a proximal end, a distal end, and a first beam. The delivery device also includes a cover plate attached to and moveable relative to the body, the cover plate including a second beam. A space is defined between the first beam and the second beam that receives the compression plate. The delivery device also includes a compression clip that retains the compression plate in the space.