Adaptive Infusion Pump Volume Per Motor Revolution
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Solution Overview
Problem
Infusion pumps face efficiency variations due to changes in pressure and other system parameters, leading to potential over- or under-delivery of fluids, which can harm patients if not maintained at programmed infusion rates.
Innovation Solution
A patient care system with pressure sensors and a programming module that evaluates system parameters to dynamically adapt the pumping mechanism, ensuring fluid delivery at the programmed rate by adjusting the volume dispensed per pump rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the infusion pump operates with fixed pumping parameters, then the device complexity is low, but the infusion rate accuracy deteriorates due to pressure variations
Solution Approach 1:
The system continuously monitors pressure variations in the fluid line and feeds this information back to the control module, which then adjusts the pumping parameters to compensate for pressure changes and maintain accurate infusion rates
Solution Approach 2:
The infusion pump transitions from fixed pumping parameters to dynamic parameter adjustment, where the control module modifies pumping speed and volume based on real-time pressure sensor data to adapt to changing system conditions
2Reliability
If pressure sensors and adaptive control are added to the infusion pump, then the infusion rate accuracy is improved, but the device complexity increases
Solution Approach 1:
Pressure sensors provide continuous feedback on fluid line conditions to the control module, enabling real-time compensation for pressure variations that would otherwise compromise infusion reliability
Solution Approach 2:
The system replaces purely mechanical pumping with an electronically controlled pumping mechanism that uses sensors and algorithms to dynamically adjust operation, substituting mechanical simplicity with electronic intelligence to achieve higher reliability
3Manufacturing precision
If the pumping mechanism operates without adaptation, then the ease of operation is high, but the fluid delivery precision deteriorates under varying pressure conditions
Solution Approach 1:
The infusion pump performs self-adjustment by automatically monitoring its own operating conditions through pressure sensors and correcting its pumping action to maintain precision without requiring manual intervention or complex user programming
Data Source
AI summary
A patient care system is configured for infusing fluid to a patient. The system includes at least one fluid infusion pump connected to a respective fluid supply for pumping the contents of a fluid supply to a patient via fluid supply lines. The system includes a programming module that determines the efficiency of the fluid infusion pumps and dynamically adapt the infusion pumps based on one or more system parameters.