Modular Lead Wire Slide for Individual EEG Wire Positioning

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Solution Overview

Problem

Existing lead wire slides for medical applications, such as EEG, are either too bulky, rigid, or require multiple pieces, leading to tangling and difficulty in managing multiple wires, and do not allow individual wires to be moved without affecting others, posing challenges in attachment and handling.

Innovation Solution

A unitary lead wire slide with through-holes for slidable accommodation of medical wires, featuring a connecting section for modular connection with identical slides, allowing easy handling and separation of wires, and compatible with MRI scanners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If lead wires are fixed and attached to an adapter, connector or clamp, then the lead wires are organized and separated, but the system becomes rigid and individual lead wires cannot be moved to reach distant locations

Engineering Contradiction:

Improvewire organizationVSAvoidwire position adjustment

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by providing a lead wire slide that allows lead wires to move freely along its length while maintaining organization. The slide structure enables individual wires to be pulled to different positions without affecting the overall organized arrangement, thus combining stability with adaptability.

Inventive Principle:

Principle #15Dynamics

2Ease of manufacture

If existing lead wire slides are made of two connectable pieces, then the structure can be assembled, but the design becomes complex and requires multiple components

Engineering Contradiction:

Improveassembly capabilityVSAvoidnumber of components

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges multiple components into a single integrated lead wire slide structure. Instead of using two separate halves that need to be connected, the invention provides a monolithic slide that accommodates multiple lead wires, thereby reducing component count and simplifying the overall design while maintaining manufacturing feasibility.

Inventive Principle:

Principle #5Merging (Combining)

3Stability of the object's composition

If lead wires are placed in grooves of a lead wire slide, then the wires are guided and organized, but the wires can drop out of the grooves

Engineering Contradiction:

Improvewire guidanceVSAvoidwire retention

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The patent employs a groove structure with raised edges or walls that act as flexible constraints. The groove geometry is designed to guide the lead wires while the groove walls prevent the wires from dropping out, providing both guidance and retention through the groove's structural design rather than additional fastening components.

Inventive Principle:

Principle #30Flexible shells and thin films

4Device complexity

If multiple lead wires share a common hole, then the structure is simplified, but the wires cannot be separated individually

Engineering Contradiction:

Improvestructure simplificationVSAvoidindividual wire separation

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the wire accommodation structure by providing separate grooves or channels for each lead wire within the slide. This segmentation allows each wire to be individually accessed, moved, or disconnected while maintaining an organized and relatively simple overall structure, thus resolving the contradiction between structural simplicity and individual wire separability.

Inventive Principle:

Principle #1Segmentation

5Quantity of substance

If a lead wire slide accommodates many lead wires, then all wires are organized, but the slide becomes large and unhandy

Engineering Contradiction:

Improvenumber of organized wiresVSAvoidslide size

Core Design Contradiction:

Quantity of substanceVSVolume of moving object

Solution Approach 1:

The patent addresses the size issue by arranging lead wires in a compact, linear configuration along the length of the slide rather than spreading them out in a two-dimensional array. This dimensional arrangement allows a large number of wires to be accommodated in a longer but narrower and more manageable slide structure, reducing overall bulk while maintaining organizational capacity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4640151A1Lead wire slide, assembly group, and medical system

Publication Date: 2025.10.29 AMBU AS

Figure 1~2
Figure 3~4
Figure 5~6

AI summary

The present disclosure relates to a lead wire slide (2) for slidable accommodation of medical lead wires (4), comprising a base section (6) that includes a plurality of through-holes (8) that are each configured to accommodate one medical lead wire (4) in a slidable manner and a connecting section (10) that is provided on a side (12) of the base section (6) and configured to be connected to a complementary connecting section (10') of another lead wire slide (2'). The present disclosure further relates to an assembly group (34) comprising a first lead wire slide (2) and a second lead wire slide (2'). The present disclosure also relates to a medical system (38) comprising a lead wire slide (2).