Rotating Cap Catheter Securement to Prevent Micro-Pistoning
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Solution Overview
Problem
Existing securement devices for medical articles like catheters fail to effectively prevent micro-pistoning and adhesive residue buildup, are invasive, and are not easily repositionable without causing complications.
Innovation Solution
A securement device with a rotatable cap and helical slot mechanism that applies radial and compressive forces to grip articles securely, eliminating the need for adhesives and allowing for repositioning without residue buildup, featuring a simple design suitable for various tubular article sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bandages, plasters or surgical tape are used to attach catheters to a patient, then the catheter is secured in place, but adhesive residue builds up on the catheter and patient skin, increasing infection risks and weakening catheter structure
Solution Approach 1:
The invention extracts the harmful adhesive element from the securement system entirely. Instead of using adhesive bandages or plasters that leave residue, the device employs a purely mechanical securement mechanism consisting of a base with channel and a rotatable cap with helical slot that physically grips the catheter through friction and compression forces, eliminating adhesive residue buildup while maintaining secure attachment
Solution Approach 2:
The invention replaces the chemical adhesive bonding mechanism with a mechanical gripping system. The rotatable cap with helical slot creates friction-based gripping forces and compression against the catheter, substituting the adhesive chemical bond with mechanical physical forces that secure the catheter without leaving harmful residues
2Object-generated harmful factors
If a rotatable cap with helical slot mechanism is used to grip the article, then the article is securely held without adhesives, but the device complexity increases compared to simple adhesive applications
Solution Approach 1:
The securement device is segmented into distinct functional components: a base with channel for receiving the catheter, and a separate rotatable cap with helical slot for gripping. This segmentation allows each component to perform its specific function efficiently while keeping the overall design relatively simple and manageable, avoiding the need for complex integrated systems
3Adaptability or versatility
If dedicated securement devices with complex catheter holding structures are used, then particular catheter types and sizes can be secured, but the devices cannot be easily repositioned and still fail to eliminate micro-pistoning
Solution Approach 1:
The securement device achieves universality through the rotatable cap mechanism with helical slot that can accommodate various catheter types and sizes through a single design. The friction-based gripping and compression forces work effectively across different catheter dimensions, eliminating the need for multiple specialized devices while maintaining ease of repositioning by simply rotating the cap off and reapplying
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 securely holds medical articles in place, reducing the risk of infection and structural damage while allowing for frequent repositioning without adhesive residue, effectively inhibiting micro-pistoning and dislodgment, and is adaptable for different tubular article sizes.
Implementation Method 1
a cap being rotatable on the base between an article receiving position and an article gripping position and comprising a slot for receiving an article in the article receiving position and gripping the article in the article gripping position
Implementation Method 2
a base on the anchor pad for receiving the article, and a cap mountable on the base at a mounting defined between the base and the cap
Data Source
AI summary
A securement device 1 for securely attaching tubular articles 2 to surfaces comprising an anchor pad 3 for placing the securement device 1 on the surface, a substantially cylindrical base 4 on the anchor pad 3 and a screw cap 5 rotatably mountable on the base 4 at a screw mounting 6 defined between the base 4 and the screw cap 5 between an article receiving position and an article gripping position in which radial pressure is applied to the article 2 placed in the securement device 1 to securely hold the article 2 without the use of external adhesive fixings and prevent micro-pistoning of the article 2.