Fluid Delivery Conduit Secondary Push Mechanism
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Solution Overview
Problem
Conventional fluid delivery systems often result in fluid waste and under-infusion issues due to incomplete delivery of medication, as residual fluid in the conduit is either discarded or delivered at an incorrect rate when the primary fluid source is depleted.
Innovation Solution
A controller manages a fluid pump to deliver a primary fluid at a desired rate and monitors its volume, then uses a secondary fluid to advance any remaining primary fluid in the conduit to the recipient, ensuring the entire prescribed amount is delivered by discontinuing the primary fluid injection and injecting the secondary fluid once a predetermined amount is reached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the primary fluid is pumped into the conduit to deliver medication to the recipient, then the desired rate of delivery is achieved, but residual fluid remains in the conduit between the pump and the recipient when the pump is stopped
Solution Approach 1:
A secondary fluid is introduced as an intermediary substance to push the residual primary fluid from the conduit into the recipient. The secondary fluid acts as a mediator that facilitates complete delivery of the primary fluid while allowing the system to stop without leaving wasted fluid in the conduit.
Solution Approach 2:
Instead of discarding the residual fluid in the conduit, the system recovers it by using secondary fluid to push it into the recipient, ensuring complete utilization of the primary fluid and eliminating waste.
2Measurement precision
If the pump is stopped after delivering a specified amount of fluid, then the prescribed dose is delivered, but the remaining fluid in the conduit is either not delivered or delivered at an incorrect rate
Solution Approach 1:
The useful action of fluid delivery is continued after the primary pump stops by introducing secondary fluid to push the remaining primary fluid into the recipient, ensuring continuous and complete delivery without interruption or delay.
Solution Approach 2:
The system performs a preliminary calculation of the residual fluid volume in the conduit and uses secondary fluid to push it into the recipient, ensuring the complete prescribed dose is delivered without requiring additional time for manual intervention.
3Reliability
If the conduit is primed with fluid before delivery, then proper fluid flow is established, but additional fluid volume is required in the source container
Solution Approach 1:
Secondary fluid serves as an intermediary that pushes the residual primary fluid into the recipient, allowing the system to use less primary fluid in the source container while still achieving complete dose delivery through the priming volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces fluid waste and ensures complete delivery of the intended dose by using a secondary fluid to push the remaining primary fluid to the recipient, preventing under-infusion and minimizing delays in medication delivery.
Implementation Method 1
injects a secondary fluid through the conduit to advance a remaining portion of the primary fluid in the conduit to the recipient
Data Source
AI summary
A controller controls a fluid pump to deliver primary fluid from a first source at a desired rate through a respective conduit to a recipient. The controller monitors a volume of the primary fluid injected into the conduit. Subsequent to injecting a predetermined amount of the primary fluid into the conduit, the controller i) discontinues injection of the primary fluid into the conduit and ii) injects a secondary fluid through the conduit to advance a remaining portion of the primary fluid in the conduit to the recipient. The controller advances the secondary fluid into the conduit until a desired amount of the primary fluid is delivered trough the conduit to the recipient. Injection of the secondary fluid to push the remaining portion of the primary fluid reduces waste associated with the primary fluid.