Tabbed Split Dual Liner Structure for Precise Wound Closure

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Solution Overview

Problem

Medical practitioners face difficulties in applying adhesive-backed anchoring members for wound closure due to glove adhesion issues, particularly when using single or two-stage release liners, which complicates the process.

Innovation Solution

A two-component medical device with first and second adhesive-backed anchoring members, each protected by a release liner with a tab portion, and elongated connectors attached to pulling elements, allowing precise application and closure of wounds or incisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single release liner is used to protect both adhesive-backed anchoring members, then the device complexity is reduced, but gloved fingers stick to the adhesive surface during application making the process difficult

Engineering Contradiction:

Improverelease liner structureVSAvoidapplication process

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The release liner is divided into two separate release liners, each protecting one adhesive-backed anchoring member. This segmentation allows the practitioner to control the exposure of each adhesive surface independently, preventing accidental adhesion to gloved fingers while maintaining a relatively simple overall device structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The release liner acts as an intermediary protective layer between the adhesive surface and the practitioner's gloved fingers. By providing this protective barrier that can be selectively removed, the system mediates between the need for adhesive bonding and the need for easy handling during application.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If adhesive is exposed on the first adhesive-backed anchoring member before application, then the anchoring member can be applied to the skin, but gloved fingers stick to the adhesive surface making manipulation difficult

Engineering Contradiction:

Improveanchoring member applicationVSAvoidglove adhesion to adhesive

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The release liner is pre-applied to protect the adhesive surface before the anchoring member needs to be applied to the skin. This preliminary protective action prevents the harmful adhesion between glove and adhesive during handling, while allowing controlled exposure of the adhesive only when ready for application.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The potentially harmful adhesion between adhesive and glove is converted into a beneficial controlled bonding mechanism. The release liner creates a temporary controlled adhesion that protects the adhesive, and when removed, allows the adhesive to bond only to the intended skin surface without sticking to the practitioner's gloves.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Productivity

If the release liner is completely removed to expose the adhesive on the second adhesive-backed anchoring member, then the anchoring member can be applied, but the process becomes complicated due to glove adhesion issues

Engineering Contradiction:

Improvewound closure application speedVSAvoidapplication process complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The use of two separate release liners allows for staged exposure and application of the adhesive-backed anchoring members. This segmentation enables efficient sequential application without the complexity of managing a single large release liner, as each smaller release liner can be independently removed and managed.

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

Facilitates easy and precise application of adhesive-backed anchoring members, reducing glove adhesion issues and enabling secure wound closure with minimal scarring and improved adjustability.

Implementation Method 1

a first adhesive-backed anchoring member having one edge referred to as a wound edge of the first adhesive-backed anchoring member

Methodology Applied

Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS12440212B2Tabbed and split dual liner

Publication Date: 2025.10.14 CLOZEX MEDICAL LLC

AI summary

Disclosed is a two-component medical device useful for closing a wound or incision. The two-component medical device includes first and second adhesive-backed anchoring members having wound edges. A first and a second release liner protect the first adhesive-backed surface of the first adhesive-backed anchoring member. A first and a second release liner also protects the second adhesive-backed anchoring member. Each of the first and second release liners include a tab portion for removal of the associated first or second release liner.