Rotatable Wing Catheter Stabilization Mechanism

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Solution Overview

Problem

Existing medical articles, such as catheters, often move during use, causing discomfort, restricting fluid administration, and increasing the risk of infection or dislodgment, as they are not effectively stabilized on the patient's skin.

Innovation Solution

A medical article with rotatable wings that can be configured to secure the device to the patient's skin, allowing the wings to rotate between an up and down position, with the down position stabilizing the article and preventing movement, using a housing and channel design to lock the wings in place.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If tape is used to secure the catheter distal end to the patient, then the catheter can be stabilized on the patient, but the device complexity increases and the ease of operation decreases

Engineering Contradiction:

Improvecatheter stabilityVSAvoidsecuring mechanism complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The stabilization function is segmented into multiple wings (at least two wings) that can independently rotate and secure to the patient's skin, allowing each wing to contribute to overall stability while maintaining operational simplicity through modular design

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The wings are designed to automatically engage and secure to the patient's skin through their rotatable configuration and geometric relationship with the catheter body, eliminating the need for external tape or additional securing mechanisms

Inventive Principle:

Principle #25Self-service

2Stability of the object's composition

If tape is used to secure the catheter, then movement of the catheter is restricted, but the ease of operation decreases and patient comfort is reduced

Engineering Contradiction:

Improvecatheter position stabilityVSAvoidcatheter management ease

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The wings transition from a static tape-based securing system to a dynamic rotatable mechanism that can adapt its position, allowing the catheter to move within certain parameters while maintaining stability, thereby improving patient comfort and ease of operation

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the geometric parameters of the wings through rotation about the longitudinal axis, allowing adjustment of the stabilization configuration to balance stability with patient comfort and ease of fluid administration

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the catheter is secured with tape, then dislodgment is prevented, but the reliability decreases due to potential tape failure or infection

Engineering Contradiction:

Improvecatheter retention reliabilityVSAvoidinfection risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The wings provide a self-contained securing mechanism that integrates the stabilization function directly into the catheter structure, eliminating the need for external tape that could become contaminated or fail, thereby improving reliability and reducing infection risk

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The wings are designed as disposable components that are discarded with the catheter after use, eliminating the need for reusable securing mechanisms that could become contaminated or fail over time

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS10245415B2Medical article with rotatable wings

Publication Date: 2019.04.02 VENETEC INTERNATIONAL INC

AI summary

A medical device assembly includes a catheter with a catheter hub, a housing, a first wing, and a second wing. The housing surrounds the catheter hub, but is spaced from the catheter hub to define a channel. The first wing includes a first hook disposed in the channel to permit rotation of the first wing about the catheter hub. The second wing includes a second hook disposed in the channel to permit rotation of the second wing about the catheter hub.