Bone Fusion Device With Differential Teeth
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Solution Overview
Problem
Existing bone fusion devices provide only a single acting force, leading to unstable retention and insufficient bone stimulation, hindering efficient bone growth and fusion.
Innovation Solution
A bone fusion device comprising a main body with first teeth and a movable frame with second teeth, where the second teeth provide a differential and complementary acting force to enhance stability and stimulate bone fusion, allowing for micro motion and bone growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single acting force is applied to two bones, then the device structure is simple, but the retention stability is insufficient and bone stimulation is inadequate
Solution Approach 1:
The device is divided into a main body and a movable frame, with separate first teeth on the main body and second teeth on the movable frame. This segmentation allows each set of teeth to provide independent acting forces, improving retention stability through multiple differential forces while maintaining reasonable structural complexity
Solution Approach 2:
The movable frame is designed to move relative to the main body within the accommodation hole, transforming the static single-acting-force structure into a dynamic multi-acting-force system. This dynamic capability enables the device to provide both stable retention and bone-conducted stimulation through controlled micro motions
2Productivity
If a single acting force is applied to two bones, then the device structure is simple, but bone-conducted stimulation is insufficient for efficient bone growth
Solution Approach 1:
The movable frame's ability to move relative to the main body creates dynamic micro motions that generate bone-conducted stimulation. This dynamic mechanism promotes efficient bone growth and fusion while the overall device structure remains manageable through the modular main body and frame design
Solution Approach 2:
The device changes the physical parameters of bone stimulation by introducing differential acting forces from first and second teeth. This parameter change in the stimulation pattern (from single force to multiple differential forces) accelerates bone growth efficiency without requiring excessively complex device architecture
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 differential acting forces of the first and second teeth improve the stability of bone engagement and expedite bone fusion by providing micro motion and stimulation, addressing the limitations of previous devices.
Implementation Method 1
The upper portion and the lower portion can be elastically expanded or retracted with the first end as a fulcrum
Implementation Method 2
Wolff s law states that bone in a healthy person or animal will adapt to the loads under which it is placed. If loading on a particular bone increases, the bone will remodel itself over time to become stronger to resist that sort of loading
Data Source
AI summary
A bone fusion device includes a main body and a movable frame. The main body has an accommodation hole. A top surface and a bottom surface of the main body are provided with a plurality of first teeth. The movable frame is located in the accommodation hole. The movable frame has a through hole longitudinally penetrating a first surface and a second surface thereof. A first end of the movable frame is fixed to the front end of the main body, and a second end is suspended relative to the rear end of the main body. The first surface and the second surface are provided with a plurality of second teeth. The movable frame is transversely formed with a groove to define an upper portion and a lower portion, enabling the upper portion and the lower portion to be elastically expanded with the first end as a fulcrum.