Visual K-Wire Guide for Accurate Freehand Bone Insertion
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Solution Overview
Problem
Current k-wire insertion methods require multiple insertions, leading to increased surgical time, frustration, and micro-injuries, as most existing guides are procedure-specific and require physical attachment, limiting the use of freehand methods.
Innovation Solution
A system and method utilizing a wire driver with a chuck and a laterally offset guide wire that extends parallel to the surgical k-wire, allowing for visual alignment and insertion without physical attachment to the bone, enabling freehand k-wire placement by aligning planes defined by the guide wires with the desired trajectory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple k-wire insertions are performed to achieve proper positioning, then the probability of successful placement increases, but surgical time increases and micro-injuries to the bone accumulate
Solution Approach 1:
The guide wire is attached to the wire driver before k-wire insertion, establishing a visual reference trajectory in advance. This preliminary setup allows the surgeon to plan and execute a single accurate insertion by referencing the pre-positioned guide wire, eliminating the need for multiple trial insertions and reducing surgical time.
Solution Approach 2:
The guide wire serves as an intermediary visual aid between the surgeon's intent and the actual k-wire placement. By providing a visible reference trajectory that parallels the desired k-wire path, the guide wire mediates the positioning process, enabling accurate single-pass insertion without requiring multiple attempts.
2Measurement precision
If multiple k-wire insertions are performed to achieve proper positioning, then the probability of successful placement increases, but micro-injuries to the bone increase
Solution Approach 1:
The guide wire is attached to the wire driver before k-wire insertion, establishing a visual reference trajectory in advance. This preliminary setup allows the surgeon to plan and execute a single accurate insertion by referencing the pre-positioned guide wire, eliminating the need for multiple trial insertions and reducing surgical time.
Solution Approach 2:
The guide wire serves as an intermediary visual aid between the surgeon's intent and the actual k-wire placement. By providing a visible reference trajectory that parallels the desired k-wire path, the guide wire mediates the positioning process, enabling accurate single-pass insertion without requiring multiple attempts.
3Measurement precision
If physical attachment guides are used to improve k-wire insertion accuracy, then placement precision improves, but freedom of movement and freehand methods are restricted
Solution Approach 1:
The invention replaces physical attachment guides with a visual reference system. Instead of using mechanically attached devices that physically constrain the bone or surrounding tissue, the guide wire provides a visual trajectory that the surgeon can reference while maintaining freehand insertion capability, thus preserving ease of operation while improving precision.
Solution Approach 2:
The guide wire serves as an intermediary visual aid between the surgeon's intent and the actual k-wire placement. By providing a visible reference trajectory that parallels the desired k-wire path, the guide wire mediates the positioning process, enabling accurate single-pass insertion without requiring multiple attempts.
Data Source
AI summary
The disclosed subject matter relates to a visual guide for aiding the surgeon in the insertion of a k-wire. The guide including a ring for receiving a guide wire, the guide wire extending from the ring parallel to the center axis of the ring; and, a ring attachment mechanism configured to attach the visual guide to a wire driver. The guide wires representing the trajectory of the k-wire in two orthogonal planes thus allowing the surgeon to free hand the insertion by visually referencing the guide wires and the actual trajectory of the k-wire within the bone.