Modular Diagnostic Test Reader Layout for Cartridge Mix and Placement Control

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Solution Overview

Problem

Existing diagnostic test readers are complex, bulky, and difficult to manage, leading to mistakes and inefficiencies in handling multiple types of rapid diagnostic test cartridges, particularly in clinical settings where multiple readers are needed for different test types, and there is a risk of misplacement and damage due to frequent changes and cleaning.

Innovation Solution

A diagnostic test reader system comprising a mother module and multiple reader modules, each with a unique code, allowing for data communication and control, enabling flexible and efficient operation of various test cartridges types, with sensors for position and orientation detection to prevent misplacement and ensure correct usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a universal multifunctional reader is used to perform multiple test types, then the versatility of the system is improved, but the device complexity and bulkiness increase

Engineering Contradiction:
ImproveversatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system is divided into separate reader modules, each dedicated to a specific test type (lateral flow, microfluidic, fluorescent, flow through, electrical). Each module is a self-contained unit with its own electronics and functionality, eliminating the need for a single complex multifunctional reader while maintaining versatility through modular composition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A universal charging station is designed that can accommodate and charge all types of reader modules through standardized charging contacts. The charging station serves multiple functions: charging, data communication, and module identification, providing a universal interface for diverse module types without requiring each module to be complex.

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

2Device complexity

If multiple separate readers for different test types are used, then the device complexity for each reader is reduced, but the quantity of devices and management difficulty increase

Engineering Contradiction:
Improvedevice complexityVSAvoidmanagement ease
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

Multiple separate reader modules are merged into a unified system through a common charging station infrastructure. All modules share the same charging mechanism, data communication protocol, and identification system, allowing them to be managed as a single system rather than separate devices. The charging station acts as a central hub that coordinates all modules.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Each reader module contains a unique code that is read by the charging station to identify the module type and status. The charging station provides feedback about module charging status, data transfer completion, and proper placement, guiding users through the management process and reducing errors.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If readers are moved around during cleaning and maintenance, then accessibility is improved, but the risk of misplacement and mistakes increases

Engineering Contradiction:
ImproveaccessibilityVSAvoidmisplacement risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system establishes predetermined correct placement positions for each reader module at the charging station, marked by visual indicators such as colored LEDs. Users are guided to place modules in specific positions based on their type or current task, preventing misplacement before it occurs. The system prepares the correct module position in advance rather than allowing random placement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The charging station uses color-coded LED indicators to show the correct placement position for each module type and the current operational status. Different colors indicate different states (e.g., green for correct placement, red for incorrect), providing immediate visual feedback to users and preventing misplacement through intuitive color coding rather than complex instructions.

Inventive Principle:
Principle #32Color changes

Data Source

PatentUS11193949B2Diagnostic test reader system
Publication Date: 2021.12.07 ZOETIS SERVICES LLC
  • US11193949B2 patent drawing
  • US11193949B2 patent drawing
  • US11193949B2 patent drawing

AI summary

A diagnostic test reader system including two or more reader modules and at least one mother module is provided. Each of the reader modules includes a unique code and is configured for reading a specific test cartridge type. Each of the reader modules is configured to be in data communication with the mother module for receiving instructions from the mother module and for transmitting read and/or derived data to the mother module. The mother module is configured for communicating individually with each of the reader modules.