Multilayer Semen Extender Packaging with Desiccant Moisture Control

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Solution Overview

Problem

Semen extenders stored in sealed pouches are limited by specific temperature, humidity, and pressure conditions, leading to decreased semen motility and increased agglutination beyond these conditions.

Innovation Solution

A multilayer packaging film comprising polyethylene terephthalate, polyethylene, aluminum, and a desiccant, which forms a barrier to water vapor and oxygen, absorbs moisture, and maintains semen extender quality under varied storage conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If semen extenders are stored in sealed pouches under specific temperature, humidity and pressure conditions, then the quality of semen extender is preserved within a limited period, but the storage conditions must be very specific and limited, and the storage time is very limited

Engineering Contradiction:
Improvequality of semen extenderVSAvoidstorage conditions range
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The packaging uses a multilayer composite structure comprising a first layer of polyethylene terephthalate, a second layer of polyethylene, a third layer of aluminium, and a fourth layer containing a desiccant. This composite material provides superior barrier properties against moisture and oxygen compared to single-layer pouches, enabling extended storage under varied conditions while maintaining semen extender quality

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

A desiccant is incorporated as an intermediary substance within the packaging system to actively control humidity. The desiccant absorbs excess moisture, creating a stable microenvironment that protects the semen extender from humidity-related degradation, thereby expanding the acceptable storage conditions range

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If semen extenders are stored beyond specific time and condition limits, then storage flexibility increases, but semen motility decreases and agglutination increases

Engineering Contradiction:
Improvestorage flexibilityVSAvoidsemen motility
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The multilayer packaging with desiccant provides beforehand cushioning against environmental variations. By pre-establishing a protective barrier system that controls moisture and oxygen, the packaging cushions the semen extender from harmful effects during storage, maintaining semen motility even under extended or varied storage conditions

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Device complexity

If semen extenders are stored in sealed pouches, then the packaging is simple, but the storage period is very limited and conditions are restrictive

Engineering Contradiction:
Improvepackaging structureVSAvoidstorage period
Core Design Contradiction:
Device complexityVSDuration of action of stationary object

Solution Approach 1:

The packaging transitions from simple single-layer pouches to a multilayer composite structure with four distinct functional layers. This increased structural complexity provides enhanced barrier properties and environmental control, enabling storage periods of several months to years while maintaining semen extender quality under broader conditions

Inventive Principle:
Principle #40Composite materials

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 multilayer packaging allows for long-term storage of semen extenders at wide temperature, pressure, and humidity ranges, preserving semen motility and preventing agglutination.

Implementation Method 1

the multilayer packaging, preferably the film, according to the present invention makes it possible to dispense with current very specific and limited storage conditions

Methodology Applied
Scientific EffectBarrier to water vapor and oxygen: Permeation

Implementation Method 2

said film comprising polyethylene terephthalate, polyethylene, aluminium and a desiccant

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentEP4600036A1Multilayer packaging for storing semen extenders
Publication Date: 2025.08.13 IMV TECH
  • EP4600036A1 patent drawingFigure 1~2
  • EP4600036A1 patent drawingFigure 3~4
  • EP4600036A1 patent drawing

AI summary

The present invention relates to the use of a multilayer packaging, preferably a film, for storing a semen extender, said film comprising polyethylene terephthalate, polyethylene, aluminium and a desiccant.