Rotatable Catheter Securement Cap 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 with a cylindrical base and screw cap.
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 held in place, but adhesive residue builds up on the catheter and patient skin, creating infection risks and weakening catheter structure
Solution Approach 1:
The invention extracts the harmful adhesive component 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 a channel and a rotatable cap with a slot that grips the catheter radially, eliminating adhesive residue buildup while maintaining securement reliability
Solution Approach 2:
The invention replaces the adhesive-based mechanical system with a radial compression mechanical system. The rotatable cap, when rotated from the open position to the closed position, applies radial compression force through the slot to the catheter, securing it firmly without any adhesive substances, thus substituting the adhesive mechanism with a pure mechanical gripping mechanism
2Ease of operation
If adhesive plasters are used frequently for repositioning, then catheter positioning can be adjusted, but adhesive residue accumulates and becomes difficult to remove
Solution Approach 1:
The invention extracts the adhesive component entirely from the securement system, allowing frequent repositioning of the catheter without any residue accumulation. The mechanical grip of the rotatable cap can be easily released and reapplied multiple times, making repositioning as easy as rotating the cap to the open position, removing the catheter, and rotating it back to secure
Solution Approach 2:
The invention employs a disposable securement device that can be easily applied and removed multiple times without leaving residue. The single-use nature of the device eliminates the cumulative residue problem associated with reusable adhesive plasters, as each device can be removed cleanly and replaced if needed, with no buildup on the catheter or skin
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, effectively preventing micro-pistoning and dislodgment without using adhesives, and accommodating various 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
Data Source
AI summary
A securement device (1) for securely attaching tubular articles 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 placed in the securement device (1) to securely hold the article without the use of external adhesive fixings and prevent micro-pistoning of the article.