Beveled Surgical Guide for Precise K-Wire Alignment in Bunion Surgery
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Solution Overview
Problem
Current surgical methods for treating bunions often require invasive procedures and lack precision in aligning and stabilizing bones, which can lead to complications and prolonged recovery times.
Innovation Solution
A surgical guide with a beveled distal surface and multiple aligned channels is used to guide K-wires during minimally invasive bunion surgery, allowing for precise alignment and stabilization of bones with a preset angle between 25° and 30°, and the guide is radiolucent to facilitate fluoroscopic guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional surgical methods are used to treat bunions, then bone alignment and stabilization can be achieved, but the procedures are invasive and lack precision, leading to complications and prolonged recovery
Solution Approach 1:
The surgical guide acts as an intermediary device between the surgeon and the bone structure. It provides pre-defined channels that guide K-wires along precise trajectories, ensuring accurate bone alignment while minimizing tissue disruption. The guide body with its specific geometry (beveled distal surface, channel configurations) mediates the interaction between the surgical instrument and the anatomical structure, achieving both precision and minimal invasiveness
2Reliability
If multiple K-wires are used to stabilize bones, then bone stabilization is improved, but the complexity of the surgical procedure increases
Solution Approach 1:
The surgical guide combines multiple functional elements into a single integrated device. It integrates multiple channels (first channel, second channel, third channel) within one guide body, allowing simultaneous or sequential insertion of multiple K-wires through a single placement action. The beveled distal surface and handle are merged into one structure, simplifying the surgical procedure while maintaining reliable bone stabilization through multiple wires
3Manufacturing precision
If a preset angle guide is used for K-wire insertion, then alignment precision is improved, but the device complexity increases
Solution Approach 1:
The guide employs asymmetric geometry to achieve precise angular control. The beveled distal surface is angled relative to the longitudinal axis of the guide body at a specific preset angle (between 25° and 30°). This asymmetric configuration ensures that when the guide is placed against the bone surface, the channels automatically orient the K-wires at the correct insertion angle, providing manufacturing precision without requiring complex adjustable mechanisms
Data Source
AI summary
A surgical guide includes a body including a beveled distal surface configured to being placed against a side of a foot and a proximal surface. The body includes at least one channel that extends between the beveled distal surface and the proximal surface of the body. At least one K-wire is receivable in the at least one channel and is configured to being received in a metatarsal and a capital fragment of the foot. The guide includes a handle, and a preset angle is defined between a longitudinal axis of the body and the beveled distal surface of the body. The preset angle is between approximately 25° and approximately 30°.