Tissue Closure Device with Contoured Adhesive for Edge Eversion
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Solution Overview
Problem
Current tissue closure methods, such as suturing and stapling, are invasive, cause trauma, increase infection risk, and result in scarring, while adhesive closures lack sufficient tensile strength for larger tissue openings and are challenging to apply in emergency situations.
Innovation Solution
A closure device with adhesive members that have a transitional region contoured to evert tissue edges, using connective elements for mechanical closure and skin edge eversion, allowing for rapid and non-invasive wound closure with adjustable alignment and secure adhesion, suitable for large wounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suturing or stapling is used to close tissue openings, then secure closure is achieved, but tissue trauma and scarring increase
Solution Approach 1:
The patent replaces the mechanical puncture system (needles and sutures) with an adhesive bonding system. The closure device uses adhesive members that bond to tissue surfaces without penetrating them, eliminating needle punctures and associated tissue trauma while maintaining secure closure through adhesive bonding forces.
Solution Approach 2:
The patent changes the fundamental parameter of closure mechanism from mechanical penetration to adhesive bonding. By using adhesive members with contoured transitional regions that bond to tissue surfaces, the system achieves secure closure without the harmful mechanical puncture effects of traditional suturing.
2Object-affected harmful factors
If adhesive closures are used to avoid tissue trauma, then tissue integrity is preserved, but tensile strength is insufficient for larger wounds
Solution Approach 1:
The patent applies curvature to the adhesive members by incorporating contoured transitional regions that follow the natural curvature of tissue edges. This contoured design increases the surface area of contact between the adhesive member and tissue, thereby increasing the total bonding strength and ability to withstand tensile forces in larger wounds.
Solution Approach 2:
The patent transitions from flat adhesive strips to three-dimensional contoured adhesive members with transitional regions that wrap around tissue edges. This dimensional change allows the adhesive to conform to curved tissue surfaces, maximizing contact area and bonding strength while maintaining tissue integrity.
3Reliability
If complex adhesive strips with multiple parts are used to achieve closure, then closure effectiveness is improved, but ease of operation in emergency situations deteriorates
Solution Approach 1:
The patent merges multiple functions into a single integrated adhesive member structure. The contoured transitional region combines the functions of tissue approximation, edge eversion, and secure bonding in one continuous structure, eliminating the need for separate components and simplifying application during emergencies.
Solution Approach 2:
The adhesive member with contoured transitional regions performs multiple functions simultaneously: it bonds to tissue surfaces, approximates wound edges, and everts skin edges to promote healing. This multi-functionality in a single component simplifies the closure process while maintaining effectiveness.
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 provides effective, pain-free, and efficient closure of tissue openings with minimal scarring, reducing the need for anesthesia and allowing for easy removal, while promoting optimal wound healing through proper skin edge apposition and eversion.
Implementation Method 1
each of the first and second members having a first surface that adheres to a tissue surface proximate to the tissue opening, the first surface having at least one adhesive
Data Source
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AI summary
The present invention is directed to tissue closure devices for closing a tissue opening, including one or more closure components, each closure component having a first member and a second member, each of the first and second members having a first surface that adheres to a tissue surface proximate to the tissue opening, each of the first and second members having a second surface substantially orthogonal to the first surface, and each of the first and second members having a transitional region between the first surface and the second surface which is contoured to evert an edge of the tissue opening upon the drawing together of the first and second members. The present invention is also directed to systems and kits, dressing systems, and methods for tissue repair and closure.