Doppler-Guided Patient Fluid Control for Real-Time Titration
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Solution Overview
Problem
Conventional fluid delivery devices lack real-time feedback mechanisms to adjust fluid delivery based on patient-specific fluid flow dynamics, leading to inefficiencies and potential adverse reactions.
Innovation Solution
A patient fluid control device equipped with a processor that analyzes Doppler velocimetry signals from a vessel sensor to adjust fluid delivery or withdrawal, incorporating auto-titration protocols and warning systems based on arterial and venous Doppler waveforms to optimize fluid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional fluid delivery devices are used without real-time feedback mechanisms, then the device complexity is reduced and ease of operation is improved, but fluid delivery precision deteriorates and adverse events increase
Solution Approach 1:
The patent implements real-time feedback mechanisms where Doppler velocimetry signals from vessel sensors are continuously monitored and fed back to the fluid control device. The processor analyzes these signals to detect changes in fluid flow dynamics and automatically adjusts fluid delivery parameters, thereby improving fluid delivery precision through closed-loop control.
Solution Approach 2:
The patent replaces conventional mechanical fluid delivery systems with an integrated system that incorporates Doppler velocimetry sensing and electronic control. The fluid control device uses electronic sensors and processors to monitor and adjust fluid delivery, substituting purely mechanical systems with electronically-controlled systems that provide real-time feedback and automated adjustments.
2Reliability
If real-time feedback mechanisms are added to fluid delivery devices, then fluid delivery precision is improved, but device complexity increases
Solution Approach 1:
The fluid control device is designed with multi-functionality, serving both as a fluid delivery system and as a monitoring system with integrated Doppler velocimetry sensing. The device can perform multiple functions including fluid delivery, fluid flow detection, signal processing, and automated control, thereby improving reliability through comprehensive monitoring while managing complexity through functional integration.
Solution Approach 2:
The system incorporates self-service capabilities where the fluid control device automatically monitors its own performance through integrated sensors and processors. The device self-adjusts fluid delivery parameters based on real-time feedback from Doppler velocimetry signals without requiring external intervention, thereby improving reliability through continuous self-monitoring and automated correction.
3Object-affected harmful factors
If auto-titration protocols with continuous monitoring are implemented, then adverse events are reduced, but use of energy increases
Solution Approach 1:
The patent implements periodic monitoring and adjustment cycles where the fluid control device continuously samples Doppler velocimetry signals and periodically adjusts fluid delivery parameters based on detected changes. This periodic action allows the system to reduce adverse events through continuous monitoring while managing energy consumption by adjusting the frequency and intensity of monitoring and control actions.
Solution Approach 2:
The system applies partial monitoring and control actions by focusing on critical parameters and thresholds rather than continuous full-scale monitoring. The fluid control device monitors fluid flow dynamics and intervenes only when predefined thresholds are exceeded or significant changes are detected, thereby reducing adverse events through targeted monitoring while minimizing energy consumption by avoiding unnecessary continuous adjustments.
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 events by providing real-time adjustments and alerts, and serves as a hemodynamic monitor for continuous fluid flow assessment.
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
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.