Alcohol-Free T4 Thyroid Hormone Solutions With Multi-Barrier Packaging

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Solution Overview

Problem

Existing thyroid hormone T4 solutions suffer from premature conversion to T3 during storage, leading to inaccurate dosing and potential overdosing due to unpredictable T3 levels, exacerbated by low water solubility and instability in conventional alcohol-glycerol formulations.

Innovation Solution

Formulating T4 in alcohol-free water-glycerol solutions and packaging them in multi-barrier containers made of various laminated materials to minimize T4 conversion to T3, ensuring stability and accurate dosing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If T4 is formulated in conventional alcohol-glycerol solutions, then solubility is improved, but stability deteriorates due to premature conversion to T3 during storage

Engineering Contradiction:
Improvesolubility of T4VSAvoidstability of T4
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The patent changes the chemical composition parameters of the formulation by removing alcohol and adjusting the water-glycerol ratio. This parameter change resolves the contradiction by maintaining adequate solubility through optimized glycerol concentration while eliminating the alcohol-induced premature conversion to T3, thereby improving stability without sacrificing solubility.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If multi-barrier packaging is used to prevent T4 conversion to T3, then stability is improved, but device complexity increases

Engineering Contradiction:
Improvestability of T4VSAvoidpackaging structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies composite packaging materials with multiple barriers (e.g., aluminum foil combined with plastic layers) to prevent T4 conversion to T3. This resolves the contradiction by using material composition rather than mechanical complexity—the multi-layer structure provides enhanced protection through chemical and physical barrier properties without requiring complex mechanical mechanisms.

Inventive Principle:
Principle #40Composite materials

3Duration of action of stationary object

If T4 solutions are stored for extended periods, then duration of action is improved, but reliability deteriorates due to unpredictable T3 levels

Engineering Contradiction:
Improvestorage durationVSAvoiddosing accuracy
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent applies preliminary anti-action by formulating T4 in alcohol-free water-glycerol solutions and using multi-barrier packaging before storage begins. This preemptive approach prevents the conversion to T3 from occurring in the first place, thereby maintaining reliable dosing accuracy throughout the extended storage period without requiring later adjustments or monitoring.

Inventive Principle:
Principle #9Preliminary anti-action

4Ease of manufacture

If alcohol is included in the formulation to enhance solubility, then ease of manufacture is improved, but harmful factors increase due to premature T4 conversion to T3

Engineering Contradiction:
Improveformulation processVSAvoidpremature T4 conversion to T3
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and removes alcohol from the formulation, retaining only water and glycerol. This resolves the contradiction by eliminating the harmful effect of alcohol-induced T4 conversion to T3 while maintaining ease of manufacture through a simplified two-component system that is actually easier to produce and regulate than multi-component alcohol-based formulations.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20250302787A1High-Stability Packaged Solutions of T4 Thyroid Hormone
Publication Date: 2025.10.02 ALTERGON SA

AI summary

The invention relates to highly stable alcohol-free, water-glycerol solutions of T4 thyroid hormone, with a reduced amount of T3 impurity, packaged via specific container arrangements. The containers are multi-barrier ones, in which a number of layers of specific materials separate the solution from contact with the external environment.