Gas-Permeable Stopper Straw for UV Identification

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Solution Overview

Problem

Existing straws for preserving liquid-based substances, such as animal semen, lack a simple and economical means to distinguish themselves from conventional straws, complicating identification and management.

Innovation Solution

Incorporating a gas-permeable, liquid-tight stopper in the straw that includes an optical brightening agent, which emits a distinct bluish hue under ultraviolet light, allowing easy discrimination from conventional straws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If no identifier component is added to the stopper, then the straw structure remains simple and economical, but the straw cannot be easily distinguished from conventional straws

Engineering Contradiction:
Improvesimplicity and economy of straw configurationVSAvoidability to distinguish straw from conventional straws
Core Design Contradiction:
Ease of manufactureVSDifficulty of detecting and measuring

Solution Approach 1:

The stopper incorporates an optical brightening agent that causes it to emit bluish light when illuminated by ultraviolet light. This color change property allows the straw to be easily distinguished from conventional straws under ultraviolet illumination while maintaining simplicity in normal visible light conditions.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The optical brightening agent acts as an intermediary substance within the stopper that mediates between ultraviolet light illumination and visible light emission. It absorbs ultraviolet radiation and converts it to visible bluish light, enabling identification without adding complex electronic or mechanical identification systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If an identifier component is added to the stopper, then the straw can be easily distinguished from conventional straws, but the device complexity increases

Engineering Contradiction:
Improveability to distinguish straw from conventional strawsVSAvoidcomplexity of stopper configuration
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

Instead of adding complex electronic identifiers, lights, or displays, the invention uses a simple optical brightening agent that causes the stopper to change its light emission properties under ultraviolet illumination. This chemical-optical approach is far simpler than electronic identification systems.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The optical brightening agent is incorporated directly into the disposable stopper material, allowing the identification function to be achieved at minimal cost and complexity. The agent is part of the standard stopper manufacturing process, eliminating the need for separate identification components or systems.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If the tube is made opaque to prevent contamination, then protection against contamination is improved, but the ability to visually inspect the straw contents is lost

Engineering Contradiction:
Improveprotection against contaminationVSAvoidability to visually inspect straw contents
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The optical brightening agent in the stopper provides a visual identification mechanism that works through ultraviolet illumination rather than requiring the tube to be transparent. The bluish light emission under ultraviolet light allows verification of straw identity and integrity without needing to see through the tube walls.

Inventive Principle:
Principle #32Color changes

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

Enables straightforward identification of the straw using a simple ultraviolet lamp, ensuring easy recognition and management without toxicity to spermatozoa.

Implementation Method 1

said stopper comprises an identifier component configured to emit, when it is illuminated with ultraviolet light, light of which the spectrum comprises at least one peak having a crest of predetermined wavelength in visible light

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS12364585B2Straw for the preservation of a predetermined dose of liquid-based substance
Publication Date: 2025.07.22 IMV TECH
  • US12364585B2 patent drawing

AI summary

The straw comprises a tube (11) and a gas-permeable liquid-tight stopper (12), which stopper is disposed in the tube closer to one end (16) of the tube than another end (17) of the tube, which tube and which stopper are configured for the stopper to be able to slide in the tube towards the other end (17), said tube being transparent or translucent, said stopper comprising an identifier component (13) configured to emit, when it is illuminated with ultraviolet light, light of which the spectrum comprises at least one peak having a crest of predetermined wavelength in visible light, whereas when it is illuminated by visible light said identifier component does not emit said light of which the spectrum comprises said peak.