Electrically Heatable Plaster with Conductive Textile Heating Element
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Solution Overview
Problem
Existing heat therapy methods, such as latent heat stores, do not allow for a controllable and monitored supply of heat, particularly over extended periods without removing the heat source from the skin.
Innovation Solution
An electrically heatable plaster with a self-adhesive skin contact layer and an electrically conductive textile sheet, where conductive fibres are in contact with each other, enabling controlled temperature management and uniform heat distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If latent heat stores are used for local heat therapy, then heat can be supplied for extended periods, but the heat supply cannot be controllable or monitored
Solution Approach 1:
The patent replaces passive mechanical latent heat stores with an active electrical heating system. The electrically conductive textile sheet converts electrical energy to thermal energy through Joule heating, enabling controlled and monitorable heat supply while maintaining extended duration of action.
2Ease of operation
If latent heat stores are integrated into plasters, then heat can be supplied without removing the plaster, but the heat supply cannot be interrupted or controlled
Solution Approach 1:
The patent introduces dynamic control capabilities to the heat supply system. The electrical heating element can be activated, deactivated, or adjusted in real-time through control circuits, allowing the heat supply to be adapted to patient needs while maintaining ease of use as a wearable plaster.
3Manufacturing precision
If electrically conductive textile sheets are used for heating, then uniform heat distribution is achieved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by incorporating electrically conductive fibres specifically into the textile sheet that contacts the skin. This localized conductive material enables uniform heat distribution at the heating interface without requiring complex conductive structures throughout the entire device.
Solution Approach 2:
The patent uses composite materials by combining electrically conductive fibres with textile materials to create a textile sheet that possesses both thermal and electrical conductive properties. This composite structure achieves uniform heat distribution while managing device complexity through material integration rather than separate components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The electrically heatable plaster provides a controllable and uniform heat supply over the skin surface for extended periods, enhancing therapeutic effects such as muscle relaxation, pain relief, and improved skin permeation for active substances.
Implementation Method 1
an electrically conductive textile sheet, in which electrically conductive fibres are in contact with one another
Data Source
AI summary
The invention relates to electrically-heatable plasters which comprise a self-adhesive skin contact layer, an electrically-conductive textile fabric in which electrically-conductive fibres are in contact with one another, as a heating element, and optionally at least one active substance, as well as to a method for production and the use of same for local heat therapy and/or transdermal application of active substances.