Hallux Valgus Cut Guide for Precise Osteotomy and Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for correcting hallux valgus deformity, such as chevron osteotomy, lack effective guides for precise bone cutting and fixation, leading to challenges in securing bone portions post-surgery.
Innovation Solution
The use of a cut guide with angled apertures and holes for guiding surgical tools and a targeting guide with projections and targeting holes to facilitate precise bone cutting and secure fixation of bone portions using wires and screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional chevron osteotomy is performed without specialized guides, then the surgical procedure can be completed with basic tools, but the precision of bone cutting and fixation is insufficient
Solution Approach 1:
The surgical guide is divided into distinct functional components: a body portion with apertures for cutting guidance, a fixation portion with holes for wire insertion, and engagement features. This segmentation allows each component to perform its specific function optimally while maintaining overall guide precision.
Solution Approach 2:
The surgical guide acts as an intermediary device between the surgeon and the bone, translating surgical intent into precise physical actions. The guide's apertures and holes serve as intermediaries that direct cutting tools and fixation wires along predetermined trajectories, ensuring accuracy without requiring complex robotic systems.
2Stability of the object's composition
If basic fixation methods are used without targeted wire insertion guides, then the fixation process is simpler, but the stability of bone portion securing is inadequate
Solution Approach 1:
The surgical guide is designed with pre-configured holes and apertures that establish the correct wire insertion paths before the actual fixation occurs. This preliminary configuration ensures that when wires are inserted, they automatically follow the optimal trajectories for maximum bone stabilization, eliminating the need for complex intraoperative calculations.
Solution Approach 2:
The guide replaces complex mechanical positioning systems with simple geometric features. The holes and apertures are precisely formed during guide manufacturing, substituting for complex adjustable mechanisms that would otherwise be needed to achieve precise wire angles and insertion points.
3Manufacturing precision
If multiple separate guides are used for cutting and fixation, then each guide can be optimized for its specific function, but the overall surgical process becomes more time-consuming
Solution Approach 1:
The cutting guide and fixation guide are merged into a single integrated surgical guide structure. The body portion with cutting apertures and the fixation portion with wire insertion holes are combined, allowing both cutting and fixation operations to be performed using one guide device, thereby streamlining the surgical workflow.
Solution Approach 2:
The surgical guide is designed as a multi-functional device that performs both cutting guidance and fixation guidance. The guide body provides apertures for osteotomy cutting while simultaneously providing holes for wire insertion, making it a universal tool that eliminates the need for multiple separate guides.
Data Source
AI summary
A cut guide includes a first face and an opposed second face. The cut guide further includes a first aperture and a second aperture extending through the cut guide from the first face to the second face. The first and second apertures are configured to guide a surgical tool in cutting a bone. The cut guide further includes a first hole extending through the cut guide from the first face to the second face. The cut guide further includes a second hole extending through the cut guide. A central axis of the second hole is oriented at an acute angle to the second face. The first and second holes are configured to receive a wire to position the guide against the bone.