Extendable Specimen Testing Apparatus with Sealed Wick

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing devices for evaluating liquid biological samples are limited in performing multiple tests simultaneously, lack privacy protection, and pose disposal and contamination risks due to leakage issues during storage and transportation.

Innovation Solution

A specimen testing apparatus with an extendable wick and multiple test membranes within a translucent outer case, where the wick transfers the specimen to the membranes via capillary action, and a sealing mechanism prevents leakage and contamination, allowing for easy reading and secure storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple test strips are used to perform multiple tests, then the number of tests increases, but the device complexity and risk of confusion increase

Engineering Contradiction:
Improvenumber of testsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple test membranes onto a single extendable carrier, allowing multiple tests to be performed simultaneously on one integrated device rather than using separate test strips. This merging approach maintains versatility while reducing complexity and confusion.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single carrier device is designed to perform multiple testing functions by incorporating different test membranes on the same platform, enabling one device to serve multiple purposes that previously required separate strips.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If test strips are exposed to sample for multiple tests, then testing capability increases, but privacy protection and contamination risk worsen

Engineering Contradiction:
Improvetesting capabilityVSAvoidcontamination risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The carrier containing the test membranes is nested within an outer case that provides sealing and protection. This nested structure allows the testing device to be sealed after sample exposure, preventing contamination and leakage during storage and transport while maintaining multi-test capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The device is designed as a disposable unit that can be sealed after use, eliminating the need for complex sterilization or storage protocols required by reusable strips, thereby reducing contamination risks.

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

3Object-affected harmful factors

If the device is sealed for storage and transport, then privacy and safety improve, but accessibility to test results may worsen

Engineering Contradiction:
Improveleakage preventionVSAvoidresult accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The outer case is designed with dynamic opening/closing capability, allowing the device to transition from a sealed state during storage to an open state for result reading. This dynamic design maintains safety during transport while ensuring easy accessibility to test results when needed.

Inventive Principle:
Principle #15Dynamics

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 concurrent performance of multiple tests, maintains privacy, and ensures safe storage and transportation by preventing exposure to hazardous materials through a self-sealing mechanism.

Implementation Method 1

transferring the specimen from the wick to the at least one test membrane using capillary action

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS7470398B2Method and apparatus for sample evaluation
Publication Date: 2008.12.30 LIU XUEHUI
  • US7470398B2 patent drawing
  • US7470398B2 patent drawing
  • US7470398B2 patent drawing

AI summary

A specimen testing apparatus includes an outer case and an inner case that adjustably extends beyond the bottom end of the outer case. The inner case has a plurality of test strips for biologically testing a specimen, whereby a wick affixed to the bottom end of the inner case draws the specimen into each of the test strips after the inner case is extended and the wick is exposed to the specimen. A cover is provided to protect the apparatus from contamination and to seal the apparatus after exposure to the specimen.