Dual-Channel Medical Fluid Pumping for Accurate Compounding
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Solution Overview
Problem
Existing medical fluid preparation procedures are prone to human error, leading to significant adverse reactions and high costs due to the limitations of traditional single-channel electronic compounding devices in accuracy, efficiency, and versatility.
Innovation Solution
A medical fluid transfer system with dual-channel pumps and a controller that coordinates fluid transfer operations, allowing precise control over the volume and mixture of medical fluids, including interchangeable cassettes and automated valves for safety and compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual fluid preparation procedures are used, then ease of operation is maintained, but reliability deteriorates due to human error
Solution Approach 1:
The system enables self-service through automated fluid transfer where the compounding device automatically draws fluids from sources, controls mixing ratios, and dispenses into patient containers without manual intervention, eliminating human error while maintaining ease of use through programmable operations
Solution Approach 2:
The patent replaces manual mechanical operations with an automated control system that uses sensors, processors, and actuators to control fluid transfer, mixing, and dispensing operations, substituting human manual control with electronic automation to improve reliability
2Productivity
If traditional single-channel compounding devices are used, then device complexity is reduced, but productivity deteriorates due to limited speed and accuracy
Solution Approach 1:
The system segments fluid preparation into multiple independent channels, each capable of simultaneous operation, allowing parallel processing of different fluids or containers to increase overall productivity while managing complexity through modular architecture
Solution Approach 2:
The compounding device incorporates multi-functional capabilities including fluid drawing, mixing, filtering, and dispensing within integrated stations, allowing a single device to perform multiple operations that would otherwise require separate equipment, increasing productivity without proportionally increasing complexity
3Measurement precision
If traditional compounding devices are used, then manufacturing precision is adequate, but measurement precision deteriorates in terms of fluid volume accuracy
Solution Approach 1:
The system incorporates feedback mechanisms through sensors that monitor fluid volume, flow rate, and mixing ratios in real-time, with the control system adjusting parameters based on measured values to achieve precise fluid preparation and maintain measurement accuracy
Solution Approach 2:
The patent replaces manual measurement and control with electronic sensors and digital control systems that precisely measure fluid volumes and control transfer operations, substituting imprecise manual methods with automated electronic measurement and control
Data Source
AI summary
A medical fluid transfer system can include a base, a first channel pump, a second channel pump, and a controller. The first channel pump is configured to convey a first medical fluid from a first fluid source to a fluid receiver. The second channel pump is configured to convey a second medical fluid from a second fluid source to the fluid receiver. Each of the first channel pump and the second channel pump includes a respective cassette with a pump reservoir, a plunger body, and a pump driver. A method of operating a medical fluid transfer system can include transferring a first medical fluid and a second medical fluid to a fluid receiver at least partially based on a user input representing a first predetermined volume of the first medical fluid and a second predetermined volume of the second medical fluid to be transferred to a fluid receiver.