Catheter Status Monitoring via Physiological and Bolus Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing infusion systems for delivering therapeutic agents to patients, such as those in cerebrospinal fluid, face challenges in accurately diagnosing catheter malfunctions like migration, leaks, and occlusions, as current methods provide limited refined information on catheter status.
Innovation Solution
The system monitors both physiological pressure changes and bolus pressure changes within the catheter to derive additional information, allowing for the determination of catheter migration, leaks, and occlusions by comparing measured pressure profiles to predetermined profiles, enabling non-invasive adjustments and potentially avoiding unnecessary surgeries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only physiological pressure monitoring is used, then the system is simple, but the ability to determine catheter status is insufficient
Solution Approach 1:
The patent combines physiological pressure monitoring with bolus pressure monitoring into a unified system. The pressure sensor monitors both physiological pressure changes (respiratory, cardiac) and bolus pressure changes (fluid infusion/withdrawal), integrating multiple monitoring functions into a single device that provides comprehensive catheter status determination.
Solution Approach 2:
The pressure monitoring system serves multiple functions: it monitors physiological pressure variations, detects bolus pressure changes, identifies catheter migration, leaks, and occlusions, and provides comprehensive catheter status assessment. This multi-functional approach eliminates the need for separate monitoring systems.
2Measurement precision
If only bolus pressure monitoring is used, then the system is simple, but the ability to determine catheter status is insufficient
Solution Approach 1:
The patent merges bolus pressure monitoring with physiological pressure monitoring into a single integrated system. The pressure sensor detects both types of pressure changes simultaneously, providing comprehensive information for accurate catheter status determination while avoiding the need for separate monitoring systems.
Solution Approach 2:
The monitoring system performs multiple functions through a single pressure sensor: detecting physiological pressure variations, monitoring bolus pressure changes, identifying catheter complications (migration, leaks, occlusions), and providing overall catheter status assessment.
3Reliability
If comprehensive monitoring is implemented, then catheter status determination is accurate, but the system becomes complex
Solution Approach 1:
The patent integrates physiological pressure monitoring and bolus pressure monitoring into a single unified system. The pressure sensor monitors both types of pressure changes simultaneously, providing reliable catheter status determination through combined analysis while avoiding the complexity of separate monitoring systems.
Solution Approach 2:
The pressure monitoring system serves multiple functions including physiological pressure monitoring, bolus pressure detection, catheter migration detection, leak identification, occlusion detection, and comprehensive status assessment, all through a single integrated device.
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
This approach provides refined determination of catheter status, allowing for precise identification of issues like migration, leaks, and occlusions, enabling optimal positioning and reducing the need for explantation, thus saving costs and minimizing patient risk.
Implementation Method 1
pressure sensor in communication with the lumen of the catheter. The pressure sensor is capable of measuring pressure within the lumen of the catheter
Data Source
AI summary
A method for monitoring the status of an implanted catheter includes monitoring changes in pressure within a lumen of a catheter associated with physiological parameters (“physiological pressure”) and changes in pressure within the lumen of the catheter associated with bolus infusion of fluid into the catheter or bolus withdrawal of infusion from the catheter (“bolus pressure”). Methods that employ monitoring both physiological pressure and bolus pressure can provide information that cannot be obtained from monitoring physiological pressure or bolus pressure alone.