Integrated Test Device with Fluid Actuator for Buffer Dispensing

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Solution Overview

Problem

Conventional point-of-care test devices for bodily fluids require complex procedures and multiple components, leading to potential user errors and low compliance due to the need for precise handling of test strips and buffer solutions.

Innovation Solution

An integrated test device with a reservoir for buffer fluid and a fluid delivery actuator that automatically dispenses the fluid onto the test component, simplifying the testing process and reducing user error.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate buffer container and multiple components are used in conventional test devices, then the device can provide comprehensive testing functionality, but the device complexity increases and user compliance decreases

Engineering Contradiction:
Improvetesting functionalityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the buffer container, test strip holder, and testing components into a single integrated device. The buffer container is formed as part of the device housing, and the test strip is held within the same structure, eliminating the need for separate components and reducing overall device complexity while maintaining comprehensive testing functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated device performs multiple functions within a single unit: it stores the buffer solution, holds the test strip, dispenses the buffer, and provides the testing interface. This multi-functionality reduces the number of separate components needed and simplifies the user操作流程.

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

2Ease of operation

If manual handling of test strips and buffer solutions is required, then the device allows flexible operation, but user errors increase and compliance decreases

Engineering Contradiction:
Improveflexible operationVSAvoiduser error rate
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The device automatically dispenses the buffer solution onto the test strip when the test strip is inserted into the device. This self-service mechanism eliminates the need for manual handling of both the buffer container and test strip, reducing user errors while maintaining ease of operation through simple insert-and-read functionality.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If precise sequence of steps is required for testing, then the test accuracy can be maintained, but the ease of operation decreases and compliance drops

Engineering Contradiction:
Improvetest accuracyVSAvoidease of operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The buffer solution is pre-loaded into the buffer container during device manufacturing. The device is pre-prepared with the buffer at the correct volume and concentration, eliminating the need for users to perform precise measurements or follow complex preparation sequences. Users simply insert the test strip and the device handles the rest.

Inventive Principle:
Principle #10Preliminary action

4Ease of manufacture

If multiple separate components are used, then the device can be manufactured with standardized parts, but the device complexity increases and compliance decreases

Engineering Contradiction:
Improvestandardized partsVSAvoiddevice complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent integrates the buffer container, test strip holder, and testing components into a single molded housing structure. This merging allows the device to be manufactured as an integrated unit using standardized manufacturing processes, reducing the number of separate parts that need to be assembled while maintaining ease of manufacture through modular component design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10525463B2Integrated testing device
Publication Date: 2020.01.07 ATOMO DIAGNOSTICS PTY LTD
  • US10525463B2 patent drawing
  • US10525463B2 patent drawing
  • US10525463B2 patent drawing

AI summary

An integrated testing device and method are disclosed. The device includes an integral reservoir for a test fluid, and an actuator, so that the test fluid can be dispensed to facilitate the test.