Adaptive Diuretic Dosing for Heart Failure Fluid Management
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Solution Overview
Problem
Current methods for treating fluid overload in heart failure patients are inefficient, requiring prolonged hospital stays and conservative diuretic dosing due to unpredictable urine output responses, leading to delayed relief and increased risks of hypovolemia and electrolyte imbalances.
Innovation Solution
A system and method for managing fluid levels in patients using a multi-phase diuretic treatment regimen with automated dosage adjustment and hydration fluid infusion, allowing for rapid diuresis and net fluid loss, including Phase I for determining an appropriate diuretic dosage, Phase II for maintenance, and Phase III for optimizing fluid reduction with automatic adjustment of diuretic and hydration rates based on urine output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conservative low-dose diuretic approach is used, then patient safety is improved by avoiding excessive urine output, but treatment time is prolonged taking several hours to days to achieve desired urine output
Solution Approach 1:
The patent implements dynamic diuretic dosing that automatically adjusts based on real-time urine output monitoring. The system transitions from static conservative dosing to dynamic adaptive dosing, increasing diuretic dose when urine output is insufficient and decreasing when adequate, thereby reducing treatment time while maintaining safety through continuous feedback control.
Solution Approach 2:
The patent employs feedback control by continuously monitoring urine output and using this information to adjust diuretic dosage. The system compares actual urine output against target values and modifies diuretic administration accordingly, enabling faster achievement of therapeutic goals while preventing excessive urine output through real-time feedback mechanisms.
2Speed
If high-dose diuretic is administered early in treatment, then treatment speed is improved by rapidly reducing fluid overload, but risk of hypotension and vital organ damage increases due to unpredictable urine output responses
Solution Approach 1:
The patent uses feedback control to monitor urine output in real-time and adjust diuretic dosage accordingly. This prevents excessive urine output that could lead to hypotension and organ damage, while still enabling rapid treatment by increasing diuretic dose when urine output is insufficient, thus achieving both speed and safety.
Solution Approach 2:
The system implements dynamic dosing adjustments based on real-time patient response. The diuretic dosage is not fixed but continuously adapted to individual patient needs, allowing aggressive treatment when beneficial and conservative adjustment when safety concerns arise, thereby optimizing the balance between treatment speed and safety.
3Productivity
If diuretic dosage is increased to achieve desired urine output rate, then fluid removal efficiency is improved, but risk of hypovolemia and electrolyte imbalances increases
Solution Approach 1:
The patent employs feedback mechanisms to monitor urine output and adjust diuretic dosage to achieve desired fluid removal targets. The system continuously compares actual output against goals and modifies dosing accordingly, preventing excessive fluid removal that could cause hypovolemia and electrolyte imbalances while maintaining efficient fluid removal when targets are met.
Solution Approach 2:
The system dynamically changes dosing parameters based on real-time urine output measurements and patient response. By continuously adjusting diuretic dosage parameters rather than maintaining fixed levels, the system optimizes fluid removal efficiency while preventing harmful effects through adaptive parameter modification based on actual patient status.
Data Source
AI summary
Devices, systems, and methods for delivering fluid therapy to a patient are disclosed herein. An exemplary method can comprise obtaining a urine output rate from a patient; causing a diuretic to be provided to the patient at a dosage rate, and increasing the dosage rate of the diuretic from the initial dosage rate to additional dosage rates higher than the initial dosage rate over a period of time. In some embodiments, the additional dosage rates include a first dosage rate higher than the initial dosage rate, a second dosage rate higher than the first dosage rate, and a third dosage rate higher than the second dosage rate.