Telescopic Bone Fixation Bridge Rack Pinion Adjustment
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Solution Overview
Problem
Current bone fracture repair and reconstruction techniques lack a flexible, efficient, and effective fixation system that can accurately adjust bone position post-attachment, leading to functional and healing issues due to the rigidity of existing systems and the need for extensive surgical training.
Innovation Solution
A system and method utilizing a telescopic connection bridge with a rack and pinion mechanism that allows for incremental adjustment of bone segments, enabling retraction or distraction of bone segments through a tool interface, providing customizable fixation plate arrangements for specific repair or reconstruction needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional rigid fixation systems are used to stabilize bone segments, then bone stability is improved, but the ability to adjust bone position after attachment is lost
Solution Approach 1:
The fixation system transitions from a static rigid structure to a dynamic adjustable system. The connection bridge incorporates a telescopic mechanism with rack and pinion gears that enable post-attachment adjustment of bone segment positions while maintaining stability through controlled mechanical engagement.
Solution Approach 2:
The connection bridge is divided into modular components including first and second connection structures, telescopic elements, and adjustment mechanisms. This segmentation allows independent adjustment of different bone segments while maintaining overall system stability.
2Reliability
If custom fixation plate arrangements are designed for specific repair needs, then treatment effectiveness is improved, but device complexity and surgical training requirements increase
Solution Approach 1:
The connection bridge is designed as a universal fixture that can accommodate various bone segment configurations and repair scenarios. The standardized interface and adjustable geometry allow a single device type to serve multiple surgical purposes, reducing the need for numerous specialized fixation plates.
Solution Approach 2:
The fixation system allows adjustment of geometric parameters such as connection angles, bridge lengths, and plate positions through the telescopic mechanism. This enables customization of the fixation configuration for specific surgical needs without requiring different device designs.
3Manufacturing precision
If extensive surgical training is provided to master complex fixation techniques, then surgical precision is improved, but surgical time and resource requirements increase
Solution Approach 1:
The adjustment mechanism is designed to be self-aligning and self-adjusting through the rack and pinion interface. The surgeon simply needs to operate the adjustment element, and the mechanism automatically maintains proper geometric relationships, reducing the need for extensive manual alignment and reducing surgical time.
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
This approach enables more efficient and effective bone fracture repair or reconstruction by allowing precise adjustment of bone segments, reducing surgical time, minimizing scarring, and lowering the risk of complications such as secondary infections.
Implementation Method 1
A system and method utilizing a telescopic connection bridge with a rack and pinion mechanism that allows for incremental adjustment of bone segments
Data Source
AI summary
An implant device includes a connection bridge to cause retraction or distraction of first and second bone segments. The connection bridge overlaps a surface of the segments and exerts a force to one of the first and second bone segments by translation motion of connection bridge. The bridge includes a first insertion structure mountable to the first segment and has at least one rack. An internal repositioning tool has a pinion to engage the rack causing the motion. A locking mechanism selectively locks the motion of the repositioning tool. A second insertion structure mounts to the second segment or a third bone segment between the first and second segments. The second structure includes a housing to house at least one of the pinion and the lock mechanism and receive a portion of the at least one rack to engage the at least one the pinion and the lock mechanism.