Kirschner Wire Fixation Structure with Joint Elements

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

There is a lack of effective methods to stabilize Kirschner wires in place after surgery, as they can shift due to external collisions or physical activities, posing harm to patients.

Innovation Solution

A Kirschner wire fixation structure comprising at least two joint elements with through-hole passages and a connection rod, allowing for three-axis adjustment and stabilization of the wires, using metal or titanium alloy materials for enhanced stability and adjustment mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If Kirschner wires are inserted into bone for fracture fixation, then bone fragments can be held together, but the wires can shift out of place due to external collisions or physical activities

Engineering Contradiction:

Improvestability of Kirschner wire fixationVSAvoidshifting of Kirschner wires

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The fixation structure is divided into separate components: joint elements that interface with bone and connection rods that provide external stabilization. This segmentation allows the internal wire fixation to be complemented by an external stabilizing framework, preventing wire shifting while maintaining bone fragment alignment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Connection rods act as intermediary elements that bridge between the joint elements attached to bone and the external environment. These rods provide a mechanical linkage that stabilizes the Kirschner wires indirectly, preventing harmful shifts while allowing the wires to perform their primary fixation function.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a fixation structure is added to stabilize Kirschner wires, then wire stability improves, but device complexity increases

Engineering Contradiction:

Improvestability of Kirschner wire fixationVSAvoidcomplexity of fixation structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The joint elements serve multiple functions: they provide attachment points for Kirschner wires, interface with bone structure, and connect to external stabilization rods. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving reliable wire stabilization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fixation system merges internal wire fixation with external rod stabilization into a unified structure. By combining these functions into an integrated system where joint elements serve as connection points for both wires and rods, the overall complexity is managed while achieving enhanced reliability.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10052133B2Kirschner wire fixation structure

Publication Date: 2018.08.21 CHANG GUNG MEMORIAL HOSPITAL

AI summary

A Kirschner wire fixation structure, including: at least two joint elements, each having a plurality of through-hole passages extending in different directions; and at least one connection rod; wherein the plurality of through-hole passages of the at least two joint elements are for at least two Kirschner wires and the at least one connection rod to fit through respectively, the at least two Kirschner wires are for inserting into at least one bone, and the at least one connection rod is for connecting with the at least two joint elements to form a fixation structure outside the at least one bone to stabilize and hold the at least two Kirschner wires in place.