Transdermal Patch with Separated Active Agent Layer

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Solution Overview

Problem

Current topical delivery systems for pharmaceutically active agents, such as those used for drug addiction treatment, often mix the agents with adhesives, leading to incomplete dose delivery and unacceptable side effects.

Innovation Solution

A transdermal delivery system comprising an absorbent material with menthol, a compound for treating drug addiction, a carrier solvent, an absorbent polymer, and a surfactant, separated from the adhesive layer to ensure full contact with the skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the pharmaceutically active agent is mixed with the adhesive in the patch, then the patch structure is simple and easy to manufacture, but the active agent is entrapped and cannot deliver the full dose to the skin

Engineering Contradiction:
Improvepatch structure simplicityVSAvoidactive agent delivery dose
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patch is divided into separate functional layers: an adhesive layer for skin attachment and an absorbent material layer for active agent delivery. This segmentation prevents the active agent from being trapped in the adhesive while maintaining simple manufacturing through layer assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The active agent is extracted from the adhesive matrix and placed in a separate absorbent material layer. This extraction ensures the active agent is not entrapped by the adhesive and can be delivered in full dose to the skin, while the adhesive layer maintains its structural function.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If the active agent is mixed with the adhesive, then the patch structure is simplified, but side effects increase due to incomplete dose delivery and potential adhesive interaction

Engineering Contradiction:
Improvepatch structureVSAvoidside effects
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

By separating the adhesive function from the active agent delivery function into distinct layers, the patch eliminates harmful interactions between adhesive and active agent, reducing side effects while maintaining structural simplicity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Removing the active agent from the adhesive matrix eliminates potential harmful interactions and ensures complete dose delivery, thereby reducing side effects associated with incomplete delivery and adhesive interference.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the active agent is mixed with the adhesive, then manufacturing is easier, but the full therapeutic effect is not achieved due to adhesive interference

Engineering Contradiction:
Improvepatch assemblyVSAvoidtherapeutic effect
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patch uses separate layers for adhesive and active agent delivery, ensuring the active agent is not interfered with by the adhesive, thereby maintaining full therapeutic effect while keeping manufacturing simple through layer assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Extracting the active agent from the adhesive matrix eliminates adhesive interference, ensuring complete and reliable therapeutic effect while maintaining ease of manufacture through separate layer preparation and assembly.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This system provides effective, side-effect-free delivery of pharmaceutically active agents like psilocybin and cannabinoids, enhancing pain relief and reducing drug addiction symptoms by ensuring complete dose administration without adhesive interference.

Implementation Method 1

an absorbent polymer

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

a surfactant

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Implementation Method 3

an absorbent material including menthol

Methodology Applied
Scientific EffectCounterirritation:

Data Source

PatentUS20250108015A1Drug addiction treatment and menthol transdermal delivery systems and methods
Publication Date: 2025.04.03 GHALILI BABAK
  • US20250108015A1 patent drawing
  • US20250108015A1 patent drawing
  • US20250108015A1 patent drawing

AI summary

The present disclosure relates to compositions, including, transdermal delivery systems useful as topical analgesics including an effective amount of a compound (e.g., psilocybin) for treating drug addiction (e.g. opioid addiction) and menthol and optionally cannabinoids wherein the menthol component can be a stabilized menthol composition comprising menthol and at least one menthol stabilizer compound including undecylenic acid methyl ester, undecylenic acid or a salt of undecylenic acid.