Optical Drip Chamber Flow Meter for Precise IV Flow Control
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Solution Overview
Problem
Existing fluid delivery systems in medical settings lack precise control and monitoring of fluid flow, particularly in situations requiring strict adherence to set flow rates, such as intravenous infusion therapy and dialysis.
Innovation Solution
A system comprising a fluid flow meter and a valve, where the flow meter uses optical sensors to monitor fluid flow and provide feedback to regulate the valve, ensuring accurate and controlled fluid delivery. The system can be remotely controlled and integrated with infusion pumps or used standalone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical sensors and feedback control are added to monitor and regulate fluid flow, then measurement precision and flow control accuracy are improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback control system where optical sensors continuously monitor fluid flow characteristics and provide real-time data to a control mechanism. This feedback loop enables automatic adjustment of flow parameters to maintain precision while reducing manual intervention. The system compares measured flow rates against target values and dynamically regulates the fluid delivery to correct deviations, thereby achieving high measurement precision without requiring complex manual monitoring procedures.
Solution Approach 2:
The patent replaces traditional mechanical flow measurement and control mechanisms with optical sensing technology. Instead of using mechanical turbines, float indicators, or manual flow meters, the system employs optical sensors that detect fluid flow through light interaction. This substitution reduces mechanical wear and complexity while improving measurement precision. The optical detection method allows for non-contact, high-precision flow monitoring that is more accurate than conventional mechanical approaches.
2Manufacturing precision
If feedback control mechanisms are implemented to regulate fluid flow, then flow control accuracy is improved, but device complexity increases
Solution Approach 1:
The patent employs feedback control where the system continuously monitors actual fluid delivery and compares it against prescribed flow rates. When deviations are detected, the control mechanism automatically adjusts valve positions or pump speeds to correct the flow. This closed-loop feedback ensures high fluid delivery accuracy by constantly maintaining flow parameters within acceptable tolerances, eliminating the need for complex manual adjustment procedures or over-engineered mechanical control systems.
Solution Approach 2:
The system implements self-regulating capabilities where the feedback control mechanism automatically corrects flow deviations without external intervention. The control algorithm processes sensor data and autonomously adjusts flow parameters to maintain precision. This self-service approach simplifies the overall system architecture by reducing the need for complex external control mechanisms or frequent manual calibration, as the system self-corrects to maintain manufacturing precision.
3Adaptability or versatility
If the system integrates multiple components (flow meter, valve, sensors, control mechanisms), then fluid flow regulation capability is improved, but device complexity increases
Solution Approach 1:
The patent integrates the flow meter, valve, optical sensors, and control mechanisms into a unified system where components work synergistically. The flow measurement and control functions are combined in a single integrated unit rather than separate standalone devices. This merging reduces the number of external connections and interfaces required, simplifies system installation and maintenance, while maintaining the enhanced fluid delivery control capability that comes from having multiple coordinated components.
Solution Approach 2:
The integrated system is designed to perform multiple functions within a single platform: flow measurement, flow regulation, real-time monitoring, and automatic control adjustment. This multi-functionality eliminates the need for separate dedicated devices for each function, reducing overall system complexity while enhancing adaptability. The universal control mechanism can handle various fluid types and flow rates, making the system versatile without requiring additional specialized components for different applications.
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 enables precise monitoring and regulation of fluid flow, preventing free flow conditions and ensuring fluid delivery adheres to set rates, thereby enhancing the safety and efficacy of medical treatments.
Implementation Method 1
A flow meter and related method utilize the interaction of light with a moving fluid to determine a volume of the moving fluid
Data Source
AI summary
A system for regulating fluid flow having a processor configured to reduce image noise is provided. The system includes an image sensor to capture an image of the drip chamber. The processor captures the image of the drip chamber using the image sensor, performs an edge detection on the image to generate a first processed image, and performs a Boolean-operation on a pixel on a first side of an axis of the first processed image with a corresponding pixel on a second side of the axis of the first processed image to generate a second processed image.