Patient Fluid Control With Doppler Feedback Monitoring
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Solution Overview
Problem
Existing fluid delivery systems lack the ability to dynamically adjust fluid delivery based on real-time fluid flow measurements, leading to inefficiencies and potential adverse patient reactions.
Innovation Solution
A patient fluid control device that receives Doppler velocimetry signals from a sensor to analyze fluid flow and adjusts fluid delivery or withdrawal based on detected changes, incorporating processors to alert clinicians or automate adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fluid delivery is adjusted based on real-time fluid flow measurements, then fluid delivery precision is improved, but device complexity increases
Solution Approach 1:
The system continuously monitors fluid flow using Doppler velocimetry sensors and automatically adjusts fluid delivery based on real-time measurements. The processor compares measured fluid flow against expected values and modifies delivery parameters dynamically, creating a closed-loop feedback control system that improves precision without requiring manual intervention.
Solution Approach 2:
The patent replaces manual fluid delivery adjustment with automated electronic control. The processor system substitutes for clinician decision-making by automatically interpreting Doppler signals and controlling fluid delivery, reducing the need for complex manual monitoring and adjustment procedures.
2Reliability
If real-time fluid flow monitoring is implemented, then adverse reactions are reduced, but device complexity increases
Solution Approach 1:
The system uses continuous Doppler velocimetry monitoring to detect changes in fluid flow in real-time. When abnormal patterns are detected, the system automatically alerts clinicians or adjusts delivery parameters, providing continuous safety monitoring that reduces adverse reactions without requiring multiple separate monitoring devices.
Solution Approach 2:
The fluid delivery system integrates multiple functions into a single device: fluid delivery, Doppler signal transmission, signal reception, fluid flow measurement, and automatic adjustment. This multi-functionality reduces the need for separate monitoring and delivery systems, managing complexity through integration rather than proliferation of components.
3Measurement precision
If Doppler velocimetry signals are used to monitor fluid flow, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system uses Doppler velocimetry signals as an intermediary to indirectly measure fluid flow. Rather than directly measuring flow with complex flow meters, the system transmits ultrasound signals through the fluid and analyzes the Doppler shift in returning signals, providing precise measurement through a less intrusive intermediary method.
4Productivity
If automated fluid delivery adjustment is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The fluid delivery system performs self-adjustment based on automated interpretation of Doppler signals. The processor independently analyzes fluid flow measurements and modifies delivery parameters without requiring continuous clinician intervention, enabling the system to serve itself and improving operational efficiency.
Solution Approach 2:
The automated system uses real-time feedback from Doppler velocimetry measurements to continuously optimize fluid delivery. This closed-loop control eliminates the need for manual monitoring and adjustment cycles, significantly improving productivity by maintaining optimal delivery parameters continuously without human intervention.
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
Enhances fluid delivery precision, reduces adverse reactions by allowing real-time adjustments, and serves as a hemodynamic monitor for fluid management systems.
Implementation Method 1
the sensor is an ultrasound patch sensor that directs ultrasound signals into the patient and detects a Doppler shift in the return signals detected by the sensor
Data Source
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AI summary
A fluid control device includes an interface to a remote fluid monitoring sensor that detects fluid flow in a patient. In some embodiments, a processor within the fluid delivery device is programmed to adjust the delivery or withdrawal of fluids based on the fluid flow signals provided by the sensor. In some embodiments, the fluid control device can display and/or record fluid flow signals thereby acting as a hemodynamic monitor.