Arterial Blood Pressure Damping Detection With Automated Catheter Flushing
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Solution Overview
Problem
Invasive arterial blood pressure (IABP) monitoring is prone to signal damping due to clot formation, air bubbles, or tubing issues, leading to incorrect measurements and false alarms, which are often manually identified and addressed, increasing clinical workload and risk of human error.
Innovation Solution
An automated system and method for detecting arterial blood pressure damping and performing automated flushing, with real-time analysis and evaluation of signal recovery, including optional manual intervention if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual observation and manual flushing are used to address ABP damping, then clinicians can identify and resolve damping issues, but clinical workload increases and human error risk increases
Solution Approach 1:
The system performs self-monitoring of ABP damping through automated waveform analysis algorithms that continuously assess signal quality without requiring clinician intervention. The system also performs self-diagnosis by identifying damping events and self-treatment by automatically initiating flushing sequences when damping is detected, thereby relieving clinicians from manual monitoring and intervention tasks
Solution Approach 2:
The system continuously monitors ABP waveform characteristics and provides real-time feedback about damping conditions. When damping is detected through automated analysis of waveform parameters (such as pulse pressure, rise time, and dicrotic notch), the system triggers automated flushing sequences and notifies clinicians, creating a closed-loop feedback system that reduces manual workload while maintaining reliable detection
2Reliability
If manual flushing is performed in response to ABP damping, then damping issues can be resolved, but response time is delayed and clinical workflow is negatively affected
Solution Approach 1:
The system continuously monitors ABP waveform characteristics in real-time and prepares for immediate action when damping is detected. The automated flushing sequence is triggered instantly upon detection, eliminating delays associated with manual observation and decision-making. The system proactively identifies damping events before they lead to incorrect measurements or false alarms
Solution Approach 2:
The system replaces manual mechanical flushing operations with an automated control system that uses electronic sensors, processors, and actuators to detect damping and execute flushing sequences. This substitution of manual mechanical actions with automated electronic control reduces response time and improves consistency in damping resolution
3Productivity
If automated detection and flushing is implemented, then clinical workload is reduced and response time is improved, but device complexity increases
Solution Approach 1:
The system integrates multiple functions into a single unified platform: ABP monitoring, waveform analysis, damping detection, automated flushing control, and clinician notification. By combining these functions in one system rather than using separate devices, the patent reduces overall device complexity while maintaining high productivity and automated workflow capabilities
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
Reduces the burden on clinicians by timely detection and automated resolution of damping issues, minimizing false alarms and improving clinical workflow efficiency.
Implementation Method 1
ABP signals are typically measured with an arterial catheter and an external pressure sensor... the tubing system is also operatively associated with the external pressure sensor
Data Source
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AI summary
Systems, apparatuses, and methods provide for determining whether an arterial blood pressure signal damping event is occurring and automatically flushing a catheter tubing in response to a determination that the arterial blood pressure signal damping event is occurring. In one example, the determination whether an arterial blood pressure signal damping event is occurring is based on a specific pattern change of the arterial blood pressure signal within a specified time window and beyond one or more specified threshold values. Additionally, or alternatively, a determination may be made as to whether the arterial blood pressure signal damping event is resolved in response to the automatic flush of the catheter tubing based on the arterial blood pressure signal.