Catheter Clamp Sensor Timer Alert System
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Solution Overview
Problem
Catheters often become occluded due to thrombi or other obstructions, leading to complications such as infection and pulmonary embolism, and clinicians may fail to follow flushing protocols, resulting in reduced indwelling times and negative health outcomes.
Innovation Solution
A vascular access system with a clamp and sensor configuration that detects closure and initiates a timer, providing alerts to clinicians via visual, auditory, or tactile cues when flushing is due, and stops alerts when the clamp is open, ensuring timely catheter maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clinicians manually monitor and flush catheters according to protocols, then catheter occlusion can be prevented, but human error and failure to follow protocols reduces reliability
Solution Approach 1:
The system continuously monitors catheter status through sensors (detecting occlusion, flow, pressure) and provides real-time feedback to clinicians via alerts and notifications. This feedback mechanism ensures reliable catheter maintenance by automatically reminding clinicians to flush catheters according to protocols, eliminating human error and improving compliance without increasing operational complexity
Solution Approach 2:
The catheter system performs self-monitoring and self-reminding functions through integrated sensors and alert mechanisms. The system automatically detects when flushing is due and notifies clinicians, enabling the system to serve itself in monitoring its own status and prompting maintenance actions, thereby improving reliability without requiring constant human intervention
2Duration of action of stationary object
If catheters are flushed regularly to prevent occlusion, then catheter lifespan is extended, but failure to follow flushing protocols reduces indwelling time
Solution Approach 1:
The system performs preliminary monitoring and alerting before catheter occlusion occurs. Sensors continuously check catheter status and trigger advance notifications to clinicians, enabling preventive flushing actions before problems arise. This preliminary action extends catheter lifespan by ensuring timely maintenance while improving reliability through automated protocol enforcement
Solution Approach 2:
The system provides continuous feedback on catheter status and flushing requirements through real-time monitoring and alert notifications. This feedback mechanism ensures reliable protocol adherence by automatically reminding clinicians to flush catheters at appropriate intervals, thereby extending indwelling time while maintaining high reliability in protocol follow-through
3Reliability
If multiple sensors and monitoring devices are added to detect occlusion and provide alerts, then catheter maintenance reliability improves, but device complexity increases
Solution Approach 1:
The system merges multiple monitoring functions (occlusion detection, flow monitoring, pressure sensing, alert generation) into a single integrated catheter assembly. This consolidation improves reliability through comprehensive monitoring while reducing device complexity by eliminating the need for separate, standalone monitoring devices and simplifying the overall system architecture
Solution Approach 2:
The monitoring system is designed with multi-functionality, where a single integrated platform performs multiple tasks including occlusion detection, flow monitoring, pressure measurement, and clinician notification. This universal approach improves reliability through comprehensive surveillance while avoiding the complexity increase that would result from using multiple specialized devices
Data Source
AI summary
A method to manage flushing of a catheter assembly may include providing a clamp for a fluid tube configured to be coupled to the catheter assembly. The clamp may include a sensor configured to detect the clamp is closed. The method may include starting a timer in response to the sensor detecting the clamp is closed. The method may include providing an alert in response to the timer reaching a predetermined duration of time. The alert may indicate to a clinician that the catheter assembly should be opened and flushed, which may prevent occlusion of the catheter assembly.