Roll Sheet Sample Collection Kit Absorption and Stability

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Solution Overview

Problem

Conventional sample collection kits, particularly those using cotton swabs, face challenges in achieving high sample yield, stability, and user safety due to sample escape and material-induced psychological reactance, making them difficult to use for gene profiling and disease diagnosis.

Innovation Solution

A roll sheet type sample collection kit featuring a collection sheet with excellent absorption force, a fixing bar, a support bar, and a detachable cap, allowing for stable sample attachment and easy removal, enhancing sample collection efficiency and user convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a cotton swab is used to collect oral epithelial cells, then the collection process is simple, but the collected cells easily escape from the swab, reducing sample yield and making gentle testing difficult

Engineering Contradiction:

Improvesimplicity of collection processVSAvoidsample yield

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

The patent uses a flexible collection sheet made of natural material that can be rolled around a collection rod. This thin film structure provides large surface area for cell collection while maintaining flexibility for gentle contact with oral tissues, solving both the simplicity of collection and the retention of samples

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The collection sheet is made of natural material composite that combines excellent absorption properties with biocompatibility. This composite material structure prevents cell escape while maintaining ease of collection, directly addressing the contradiction between operational simplicity and sample yield

Inventive Principle:

Principle #40Composite materials

2Strength

If a synthetic resin cotton swab is used for collection, then the structural integrity is maintained, but it causes user psychological reactance due to safety concerns

Engineering Contradiction:

Improvestructural integrityVSAvoiduser psychological reactance

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from synthetic resin to natural material. This parameter change maintains sufficient structural integrity through the rolled sheet design while eliminating the psychological reactance associated with synthetic materials, as natural materials are perceived as safer and more biocompatible

Inventive Principle:

Principle #35Parameter changes

3Quantity of substance

If a larger collection surface is used to increase sample amount, then the sample yield increases, but the stability of sample attachment decreases

Engineering Contradiction:

Improveamount of sample collectedVSAvoidstability of sample attachment

Core Design Contradiction:

Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The collection sheet is rolled into a cylindrical shape around the collection rod, creating a curved three-dimensional structure. This curvature provides large surface area for sample collection while the rolled configuration and adhesive application maintain stable sample attachment, resolving the contradiction between collection area and attachment stability

Inventive Principle:

Principle #14Spheroidality (Curvature)

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 kit provides high sample yield, ensures safe and gentle sample collection, and facilitates accurate testing by maintaining sample attachment and allowing easy sample removal, thereby improving the speed and convenience of the testing process.

Implementation Method 1

a collection sheet rolledly fixed to one end of the fixing bar to attachedly collect the sample thereonto... make use of a collection sheet as a paper sheet having an excellent absorption force

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS20220401083A1Roll sheet type sample collection kit

Publication Date: 2022.12.22 LEE HYUNGKI

AI summary

A roll sheet type sample collection kit according to an embodiment includes a fixing bar provided as a member having a given length, a collection sheet rolledly fixed to one end of the fixing bar to attachedly collect the sample thereonto, a support bar adapted to allow the fixing bar and the collection sheet to protrude from one side thereof and to be grasped while the sample is being collected, and a cap detachably mounted to surround the fixing bar and the collection sheet protruding from the support bar. The roll sheet type sample collection kit performs a sample test in a gentle and accurate manner, and easily removes a portion where the sample is collected therefrom so as to perform the sample test, thereby enhancing quickness and conveniences in the sample test.