Orthopedic Fixation Device with Alignment Index for Bone Reduction
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Solution Overview
Problem
Existing orthopedic surgeries, particularly those involving Lisfranc and Lapidus procedures, face challenges in achieving accurate alignment and fixation of displaced bones due to the intricate bony architecture, complicating proper anatomical reduction and healing.
Innovation Solution
A device with a body featuring pin holes, bone fastener holes, and an alignment index for precise positioning, allowing for accurate alignment and fixation of bones during surgeries, accompanied by a kit including forceps for surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If open reduction and internal fixation is performed to treat Lisfranc injuries, then anatomical reduction can be achieved, but the surgical complexity and difficulty increase due to intricate bony architecture
Solution Approach 1:
The patent applies preliminary action by providing pre-fabricated alignment guides and positioning devices that are prepared before surgery. These devices include pre-configured holes, guides, and alignment features that establish the correct anatomical reduction positions in advance, eliminating the need for complex intraoperative calculations and adjustments of the intricate bony architecture of the Lisfranc joint.
Solution Approach 2:
The patent uses intermediary devices such as alignment guides, positioning jigs, and temporary fixation devices that mediate between the surgeon's intent and the final anatomical reduction. These intermediaries simplify the complex interaction with the intricate bony architecture by providing standardized interfaces and pre-determined alignment paths.
2Manufacturing precision
If traditional surgical methods are used for bone fixation, then bone alignment can be achieved, but recovery time is extended due to larger incisions required
Solution Approach 1:
The patent applies segmentation by dividing the surgical procedure into distinct modular steps using separate alignment devices, positioning tools, and fixation components. This allows each function to be performed through smaller, targeted incisions rather than requiring a single large incision for all operations, thereby reducing tissue trauma and accelerating recovery while maintaining alignment precision.
Solution Approach 2:
The patent replaces traditional mechanical open reduction techniques with minimally invasive percutaneous methods using specialized instruments. Instead of requiring large incisions for direct manual manipulation of bones, the invention uses percutaneously inserted alignment guides and fixation devices that achieve the same mechanical alignment through smaller access points.
3Adaptability or versatility
If multiple separate instruments are used for alignment and fixation, then comprehensive bone treatment is possible, but surgical efficiency decreases due to multiple tool changes
Solution Approach 1:
The patent merges multiple separate alignment and fixation functions into integrated device assemblies. The combination devices incorporate alignment guides, positioning features, and fixation mechanisms in single unified structures that can perform multiple functions simultaneously or in sequence without requiring tool changes, thereby maintaining comprehensive treatment capability while improving surgical efficiency.
Solution Approach 2:
The patent creates universal devices that can accommodate different bone sizes, positions, and fixation requirements through adjustable features, interchangeable components, or geometric flexibility. These multi-functional devices replace the need for multiple specialized instruments while maintaining the ability to treat various bone alignment scenarios comprehensively.
Data Source
AI summary
A device for use in orthopedic procedures involving the alignment and fixation of bone. The device includes a body having a bone facing surface, an opposing surface, a lateral surface being disposed between the bone facing surface and the opposing surface and a longitudinal axis extending through the bone facing surface and the opposing surface. The body defines a pin hole extending through the body from the bone facing surface to the opposing surface, a bone fastener hole extending through the body from the bone facing surface to the opposing surface, a tool hole extending at least partially through the body and an alignment index for positioning the body relative to bone.