Integrated Stabilization Device for Catheter Securement

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Solution Overview

Problem

Traditional methods of securing catheters using tape or sutures lead to complications such as infection, phlebitis, catheter migration, skin excoriation, and increased risk of needlestick injuries, due to inadequate stabilization and frequent dressing changes.

Innovation Solution

A stabilization device with integrated anchor pads and a dressing member that secures a medical article to the patient's skin, featuring a retainer with a channel for the article and a dressing that covers the insertion site, reducing movement and infection risks while minimizing skin contact and adhesive residue.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive tape is used to secure the catheter, then the catheter is stabilized to the patient's skin, but the tape retains dirt or contaminant particles leading to infection risk and causes skin excoriation upon removal

Engineering Contradiction:

Improvecatheter stabilizationVSAvoidinfection risk and skin excoriation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The device divides the catheter stabilization function into separate components: a retainer that secures the catheter hub and a dressing that covers the insertion site. This segmentation allows each component to perform its specific function without the drawbacks of traditional tape, which combines stabilization and coverage in a single adhesive layer that causes skin damage.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention extracts the adhesive function from the stabilization mechanism. Instead of using adhesive tape directly on the skin to secure the catheter, the retainer uses mechanical features (channel, support members, abutment surfaces) to stabilize the catheter without adhesive contact with the skin, eliminating the source of skin excoriation and contaminant retention.

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If adhesive tape is applied frequently to maintain catheter position, then catheter migration is prevented, but adhesive residue builds up on the catheter surface making it stickier and more difficult to handle

Engineering Contradiction:

Improvecatheter position maintenanceVSAvoidcatheter handling

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

By separating the stabilization function (retainer) from the protective covering function (dressing), the device eliminates the need for frequent reapplication of adhesive materials. The retainer provides lasting mechanical stabilization without adhesive residue buildup, while the dressing can be changed without affecting catheter handling.

Inventive Principle:

Principle #1Segmentation

3Reliability

If sutures are used to secure the catheter, then stable fixation is achieved, but healthcare workers are exposed to needlestick injury risk and patients face infection and scarring risks

Engineering Contradiction:

Improvecatheter fixation stabilityVSAvoidneedlestick injury and infection risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the surgical mechanical system (sutures and needles) with a non-invasive mechanical stabilization system. The retainer uses a channel with support members and abutment surfaces that provide stable fixation through friction and geometric constraints, eliminating the need for penetrating the skin with needles while maintaining reliable catheter positioning.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If traditional taped dressings are used, then the catheter is secured to the patient, but the device requires periodic changes that excoriate the skin and increase infection risk

Engineering Contradiction:

Improvecatheter securementVSAvoiddressing wear time

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The device separates the long-duration stabilization function (retainer) from the shorter-duration protective covering (dressing). The retainer remains in place providing continuous stabilization without causing skin damage, while the dressing can be changed periodically without affecting the underlying stabilization mechanism, thus extending the effective duration of safe catheter securement.

Inventive Principle:

Principle #1Segmentation

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 stabilizes medical articles, reducing the risk of infection and skin irritation, while simplifying the application process and reducing the number of components and steps required for securement, thus enhancing patient safety and clinician efficiency.

Implementation Method 1

the dressing member having a lower surface at least partially covered by an adhesive for contacting the patient's skin

Methodology Applied

Scientific EffectAdhesive: Adhesive

Data Source

PatentUS8679066B2Stabilization device with integrated dressing

Publication Date: 2014.03.25 CR BARD INC

AI summary

A stabilization device for securing a medical article near an insertion site includes an anchor pad having an integral dressing portion, such as a transparent dressing portion, to allow for covering and protection of the insertion site.