Catheter Securement Device with Electro-Conductive Tamper Detection
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Solution Overview
Problem
Current methods for securing catheters, such as surgical tape and pressure-sensitive adhesives, are ineffective in permanently anchoring catheters, particularly those made of silicone, leading to premature failure and costly resource wastage due to movement and irritation within veins.
Innovation Solution
A catheter securement device with integrated intra-luminal electro-conduction and external tamper sensitivity, featuring an adhesive pad with conductive connectors and a proximity sensor, generates an alarm signal upon detection of movement or tampering, ensuring secure anchoring and preventing catheter removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surgical tape or pressure-sensitive adhesives are used to secure the catheter, then the catheter can be attached to the patient's skin, but the catheter fails to remain permanently anchored and movement occurs
Solution Approach 1:
The patent combines multiple securement functions into a single integrated device: adhesive attachment to skin, mechanical constraint of the catheter hub, and electroconductive monitoring of catheter position. This merging of functions creates a more reliable and durable securement system compared to separate adhesive and taping methods.
Solution Approach 2:
The electroconductive elements provide continuous feedback about catheter movement or removal by detecting changes in electrical contact through the catheter hub. This feedback mechanism allows real-time monitoring of catheter security, enabling immediate detection of displacement that would not be apparent with passive adhesive alone.
2Reliability
If adhesive dressings are used on silicone catheters, then the catheter can be secured, but the low surface energy of silicone prevents adequate adhesive grip
Solution Approach 1:
The securement device acts as an intermediary between the adhesive dressing and the silicone catheter hub. Rather than relying on adhesive to grip the low-energy silicone surface directly, the device uses mechanical constraint features (recesses, clips, or snap-fit mechanisms) that physically secure the hub without depending on adhesive-silicone bonding.
Solution Approach 2:
The patent replaces the chemical adhesion mechanism (which fails on silicone) with a mechanical securement system. The electroconductive securement device uses physical constraint and electrical contact through the hub to achieve securement, substituting the failed chemical bonding approach with a mechanical-electrical system that is effective on silicone surfaces.
3Ease of operation
If the catheter is allowed to move in the vein, then the catheter can be repositioned, but the catheter scrapes and pokes the vein wall causing irritation and premature failure
Solution Approach 1:
The securement device is applied immediately upon catheter insertion to prevent movement before it can cause harm. The device establishes stable anchoring and continuous monitoring from the outset, preventing the catheter from migrating or contacting the vein wall in a way that would cause irritation.
Solution Approach 2:
The electroconductive monitoring provides continuous feedback about catheter position and movement. When movement is detected, alerts can be generated to prompt healthcare providers to reassess and resecure the catheter before vein wall irritation occurs, enabling preventive action rather than reactive treatment.
4Productivity
If repeated catheter movement occurs, then the catheter may be repositioned, but resources are wasted and new catheter insertion is required
Solution Approach 1:
The electroconductive securement system provides continuous feedback about catheter stability and security. By detecting movement or loosening early, the system enables timely intervention to resecure the catheter rather than allowing complete dislodgement or vein damage that would require removal and reinsertion, thereby preserving resources.
Solution Approach 2:
The securement device provides a buffer or cushioning effect against forces that would cause catheter movement. The robust mechanical securement and continuous monitoring create a protective system that prevents small movements from escalating into complete dislodgement or vein wall damage, extending catheter lifespan.
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
The device effectively prevents catheter movement and tampering, reducing premature catheter failure and resource wastage by securely anchoring catheters and alerting healthcare providers to potential issues.
Implementation Method 1
The top surface includes one or more conductive connectors connected through the adhesive pad to a respective electrolyte coupling pad
Implementation Method 2
The bottom surface includes an adhesive for adhering to the site of the patient
Data Source
AI summary
A catheter securement device with integrated intra-luminal electro-conduction, and external tamper sensitivity, for tamper or movement detection. The catheter securement device accordingly can detect movement or tampering of an inserted catheter, which will allow a healthcare provider to take action to prevent movement or removal of the catheter from a patient.