Pre-dosed Applicator Packaging with Absorbent Pad Dosing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing pre-dosed applicators face challenges with shelf-life and longevity due to liquid material dissipation, and there is a need for a solution that does not require reactivation and offers long shelf-life.

Innovation Solution

A packaging system where pre-dosed applicators are held upright with an absorbent end contacting an absorbent pad in a container, allowing for concurrent dosing and packaging, controlling material saturation, and using an absorbent pad to absorb a predetermined quantity of material for efficient manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If liquid material is pre-dosed on applicators, then single-use convenience is improved, but shelf-life is reduced due to liquid dissipation

Engineering Contradiction:
Improvesingle-use convenienceVSAvoidshelf-life
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The patent changes the physical state of the material from liquid to gel form. The gel state maintains the material's therapeutic properties while preventing dissipation and evaporation, thereby extending shelf-life while preserving single-use convenience. The gel formulation allows the material to remain stable on the applicator without requiring reactivation.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If dried material is used on applicators, then shelf-life is improved, but reactivation is required before use

Engineering Contradiction:
Improveshelf-lifeVSAvoidease of use
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The patent employs gel formulation that maintains the material in a semi-solid state rather than completely dried. This gel state preserves shelf-life by preventing liquid dissipation while eliminating the need for reactivation before use, as the material remains ready-to-apply throughout its shelf-life.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If bulk material is applied from bottle or jar, then flexibility is improved, but contamination risk increases

Engineering Contradiction:
Improveapplication flexibilityVSAvoidcontamination risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent pre-doses the applicator with the gel material during manufacturing, sealing the material on the applicator in a controlled environment. This preliminary dosing eliminates the need to dip the applicator into bulk material, thereby preventing contamination while maintaining application flexibility through the pre-loaded gel formulation.

Inventive Principle:
Principle #10Preliminary action

4Manufacturing precision

If pre-dosing and packaging are performed separately, then process control is improved, but production time increases

Engineering Contradiction:
Improvedosing controlVSAvoidproduction time
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent integrates the pre-dosing and packaging operations into a single concurrent process. The gel material is applied to the applicator and sealed within the packaging container simultaneously during manufacturing, maintaining precise dosing control while significantly reducing production time compared to separate operations.

Inventive Principle:
Principle #5Merging (Combining)

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 method significantly reduces production time, lowers costs, and ensures a safe, reliable, and controllable process for producing pre-dosed applicators with extended shelf-life by absorbing and releasing the material as needed, minimizing handling risks with volatile or poisonous substances.

Implementation Method 1

an absorbent pad (20) is placed adjacent to the bottom (14) of the container (12). A liquid material (30) is placed on the absorbent pad (20)

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the absorbent ends (24) of the applicators (22) are placed in contact with the absorbent pad (20) containing the liquid material (30), wherein the liquid material (30) is absorbed by the absorbent ends (24) of the applicators (22)

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS10426704B2Pre-dosed applicators and packaging therefor
Publication Date: 2019.10.01 CENTRIX INC(US)
  • US10426704B2 patent drawing
  • US10426704B2 patent drawing
  • US10426704B2 patent drawing

AI summary

A container holding pre-dosed applicators for applying a material. The container holds the pre-dosed applicators upright with the absorbent end of the pre-dosed applicator contacting an absorbent pad on the bottom of the container containing a solution with a desired material to be applied. The absorbent pad holds a predetermined quantity of material for dosing the applicators. The packaging and dosing of the applicators can be performed concurrently facilitating manufacturing and making packaging more efficient and cost effective.