Drug Supply Device Controller Allocation Logic
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Solution Overview
Problem
Current drug supply devices are not easily configurable to divide and package drugs as prescribed, lacking simplicity in allocation and management of drug cassettes and drivers.
Innovation Solution
A drug supply device comprising multiple cassettes, drivers, and a controller that allocates drug information based on the dimensions of the target drug, allowing for simplified configuration and operation, including a cassette selecting tool to determine compatible cassettes and drivers, and a display to inform users about allocation and usage history.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cassettes and drivers are used to supply different drugs, then drug supply versatility is improved, but device complexity increases
Solution Approach 1:
The driver is designed with universal functionality to work with multiple cassette types. The controller automatically detects the cassette type and adjusts control parameters accordingly, allowing one driver to perform multiple functions with different cassettes without increasing mechanical complexity
Solution Approach 2:
The system changes control parameters (speed, torque, timing) based on the detected cassette type and drug dimensions. This allows the same hardware to adapt to different drugs by modifying operational parameters rather than requiring different hardware configurations
2Ease of operation
If manual selection of cassettes and drivers is allowed, then ease of operation is improved, but risk of incorrect allocation increases
Solution Approach 1:
The controller continuously monitors cassette identification, driver status, and drug supply progress. It provides feedback to the display unit to guide user operations and automatically prevents selections that would result in incorrect allocations, maintaining both ease of use and high reliability
Solution Approach 2:
The controller acts as an intermediary between the user and the cassette-driver system. It processes user selections, validates compatibility, and executes the allocation, preventing direct user errors while maintaining simple operation through the interface
3Reliability
If cassette and driver compatibility checking is implemented, then allocation reliability is improved, but operation time increases
Solution Approach 1:
The system performs compatibility checking in advance during cassette insertion and driver assignment. The controller pre-validates the cassette-driver-drug combination before actual drug supply begins, ensuring reliability without adding time to the critical supply path
Data Source
AI summary
A plurality of cassettes are each allowed to supply drug within a certain range of dimensions. A plurality of drivers are each mountable with each of the cassettes and drive the cassettes mounted thereto. The controller controls the drivers individually. The controller allocates drug information of a target drug to the cassette selected in accordance with dimensions of the target drug or to the driver mounted with the cassette thus selected. The controller controls the drivers so that the target drug is supplied from the cassette to which the drug information has been allocated or the driver mounted with the cassette to which the drug information has been allocated.