Wound Closure Strip with Segmented Release Liner for Safe Repositioning
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Solution Overview
Problem
Existing wound closure technologies using tapes and adhesives face issues such as adhesive denigration and difficulty in repositioning due to the need for direct contact with the adhesive, leading to potential transfer to the user's fingers and accidental adherence of objects.
Innovation Solution
A wound closure device with a non-symmetric, two-part release liner assembly, comprising a wound closure strip with a detachable release liner that allows for easy repositioning and minimizes adhesive transfer, featuring a wound-facing side with adhesive only on the intended tissue contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single release liner is used to protect the adhesive, then the adhesive is protected from denigration, but the user must directly contact the adhesive for repositioning, causing adhesive transfer and accidental adherence
Solution Approach 1:
The release liner is divided into two distinct parts: a first release liner that protects the adhesive during storage and application, and a second release liner that provides a safe gripping surface for repositioning. This segmentation allows the adhesive to remain protected while giving the user a non-adhesive surface to handle, eliminating adhesive transfer and accidental adherence issues.
2Reliability
If the wound closure tape is held by the edges, then the adhesive is protected from denigration, but repositioning becomes difficult due to direct adhesive contact
Solution Approach 1:
The second release liner acts as an intermediary between the user's fingers and the adhesive surface. It provides a safe gripping surface that allows the user to easily grasp, hold, and reposition the wound closure tape without any direct contact with the adhesive, thereby maintaining both adhesive integrity and ease of repositioning.
3Reliability
If pressure is applied to secure the wound closure tape, then effective wound closure is achieved, but adhesive transfer to the user's fingers occurs
Solution Approach 1:
By segmenting the release liner into two parts with distinct functions, the patent eliminates the harmful adhesive transfer effect. The first release liner maintains adhesive protection during application, while the second release liner provides a non-adhesive gripping surface, ensuring that no adhesive transfers to the user's fingers during pressure application or repositioning.
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 enhances user grip and stability during tissue approximation, reduces adhesive transfer, and allows for easy repositioning without accidental adherence, providing improved handling and cosmetic outcomes.
Implementation Method 1
a wound-facing side with adhesive only on the intended tissue contact area
Data Source
AI summary
A wound closure device and a method of its use are disclosed. The wound closure device comprises a wound closure strip, the wound closure strip comprising a wound-facing side and a top side, the wound-facing side comprises an adhesive applied over at least a portion of the wound facing side of the wound closure strip and a non-symmetric, two-part release liner assembly detachably adhered to the adhesive, the release liner assembly comprising a first section and a second section with the second section comprising a wound closure strip-free portion forming a tab. In an alternate embodiment, the device is multi-segmented and the wound closure strip may be coextensive with the release liner assembly.