Catheter Drainage System With Venturi Pump And Sensor Control
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Solution Overview
Problem
Existing drainage systems for human bladders lack efficient and controlled mechanisms for draining contents, particularly in managing fluid retention and release.
Innovation Solution
A drainage system comprising a catheter with a sensor, a first valve, a controller, and a venturi pump, where the controller uses elapsed time and sensor data to direct the opening and closing of the valve, and the venturi pump enhances fluid drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a drainage system uses a simple passive drainage mechanism, then the device complexity is reduced, but the control precision and intelligence of fluid drainage is insufficient
Solution Approach 1:
The drainage system incorporates sensors that detect fluid flow, pressure, or volume and feed this information back to the controller. The controller automatically adjusts valve positions and pump operations based on sensor feedback, enabling intelligent control without requiring complex manual intervention. This resolves the contradiction by automating control functions through closed-loop feedback mechanisms.
Solution Approach 2:
The system performs self-regulation through automated control algorithms that manage drainage timing, valve actuation, and pump operation based on pre-programmed logic and sensor data. The controller autonomously determines when to open/close valves and when to activate the venturi pump, eliminating the need for external control input and reducing operational complexity despite increased automation.
2Productivity
If the drainage system continuously drains fluid, then the productivity of fluid removal is improved, but the loss of time for fluid retention management is increased
Solution Approach 1:
The drainage system operates in periodic cycles rather than continuously. The controller alternates between drainage phases (when the venturi pump is active and valves are open) and retention phases (when the pump is inactive and valves are closed). This periodic operation allows the system to achieve high drainage productivity during active phases while maintaining appropriate fluid retention during inactive phases, resolving the time efficiency contradiction.
Solution Approach 2:
The system pre-determines optimal drainage timing and duration through programmed control logic that calculates when drainage should occur based on fluid volume thresholds, time intervals, or pressure conditions. By planning drainage events in advance rather than responding reactively, the system maximizes drainage efficiency while minimizing unnecessary retention time loss.
3Manufacturing precision
If the drainage system uses manual valve control, then the device complexity is reduced, but the precision of fluid retention and release control is insufficient
Solution Approach 1:
The system replaces manual mechanical valve control with automated electro-mechanical actuation controlled by a microcontroller. The controller receives digital signals from sensors and automatically actuates valves at precise moments based on programmed logic, eliminating the need for manual intervention. This substitution of manual mechanical control with automated control systems achieves high precision while managing complexity through integrated electronic control circuits.
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
The system provides intelligent control over fluid drainage, ensuring efficient retention and release of bodily fluids, thereby improving the management of bladder contents.
Implementation Method 1
a venturi pump in fluid communication with the interior of the catheter
Data Source
AI summary
A drainage system including a catheter including a sensor, a first valve in fluid communication with an interior of the catheter, a controller communicatively coupled to the sensor, the controller including logic configured to direct opening and closing of the first valve using one or both of an elapsed time and a presence of a predetermined condition, and a venturi pump in fluid communication with the interior of the catheter.