Electrode Array Strap Alignment for Independent Torso Placement

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Solution Overview

Problem

Proper positioning of electrode arrays for Tumor Treating Fields therapy is difficult for subjects to achieve independently, especially when applying them to their own bodies, which can diminish their independence and require assistance.

Innovation Solution

An apparatus with a strap and alignment features, such as recesses and markings, is used to accurately position electrode arrays on a user's torso, allowing for self-application and reproducible placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If electrode arrays are positioned without assistance, then subject independence is improved, but positioning accuracy deteriorates

Engineering Contradiction:
Improvesubject independenceVSAvoidpositioning accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces a positioning aid as an intermediary tool between the subject and the electrode arrays. This positioning aid includes alignment features that guide proper placement, allowing the subject to independently achieve accurate positioning without requiring assistance from another person.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The positioning aid is designed to enable the subject to perform the positioning task themselves through self-service. The alignment features provide visual or tactile guidance that allows the subject to correctly position the electrode arrays on their own body without external help, thus maintaining independence while ensuring accuracy.

Inventive Principle:
Principle #25Self-service

2Loss of time

If electrode arrays are positioned without assistance, then time for treatment setup is reduced, but positioning reliability deteriorates

Engineering Contradiction:
Improvesetup timeVSAvoidpositioning reliability
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The positioning aid incorporates pre-designed alignment features that are prepared in advance. These features provide predetermined guidance cues that enable the subject to quickly and reliably position the electrode arrays without requiring complex procedures or multiple adjustments, thus reducing setup time while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If alignment features are added to the strap, then positioning accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidapparatus complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The positioning aid introduces alignment features only at specific critical locations where positioning accuracy is most needed, rather than making the entire strap complex. The alignment features are localized elements that provide guidance at key positions, maintaining simplicity in other areas of the device.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20260000331A1Apparatus And Method For Array Positioning
Publication Date: 2026.01.01 NOVOCURE GMBH
  • US20260000331A1 patent drawing
  • US20260000331A1 patent drawing
  • US20260000331A1 patent drawing

AI summary

An apparatus for positioning at least one electrode array on a torso of a user is disclosed. The apparatus includes a strap that is configured to extend around the torso of the user, wherein the strap defines an inner surface that is configured to face the user. At least one alignment feature is provided on the inner surface of the strap, the at least one alignment feature indicating a position for securing the at least one electrode array to the inner surface of the strap.