Everted Wound Closure Stitching Method
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Solution Overview
Problem
Conventional methods for wound closure using sutures are time-consuming and associated with higher complication rates and wound infection risks due to prolonged operating times.
Innovation Solution
A stitching method for everted wound closure involves a single pass of the suture needle through the skin, using a curved or semi-circular motion to form a C-shape or 'laboratory flask-like' pattern, adjusting the angle based on dermis thickness to avoid subcutaneous fat gathering, facilitating efficient skin eversion and closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional layered repair methods are used for wound closure, then proper wound edge approximation and healing can be achieved, but operating time increases and complication rates rise
Solution Approach 1:
The patent combines multiple suture functions into a single stitch pattern. The everted wound closure stitch simultaneously achieves wound edge approximation, dermal alignment, and prevention of inversion in one continuous suture pass, eliminating the need for separate layered repairs of subcutaneous tissue and skin layers.
Solution Approach 2:
The patent employs a curved or semi-circular suture needle path that creates a C-shaped or flask-like configuration. This curved trajectory allows the single suture to effectively engage and approximate wound edges while maintaining proper dermal alignment and preventing tissue inversion, achieving multiple closure goals simultaneously.
2Reliability
If conventional layered repair methods are used for wound closure, then proper wound edge approximation can be achieved, but wound infection risk increases due to prolonged operating time
Solution Approach 1:
The patent combines multiple suture functions into a single stitch pattern. The everted wound closure stitch simultaneously achieves wound edge approximation, dermal alignment, and prevention of inversion in one continuous suture pass, eliminating the need for separate layered repairs of subcutaneous tissue and skin layers.
Solution Approach 2:
The patent implements a streamlined single-pass suture technique that rapidly closes the wound through an efficient curved needle trajectory, minimizing the time the wound is open and exposed to potential contaminants, thereby reducing infection risk while maintaining closure quality.
3Productivity
If a single pass suture method is used for wound closure, then operating time is reduced, but proper wound edge approximation and prevention of inversion may be compromised
Solution Approach 1:
The patent employs a curved or semi-circular suture needle path that creates a C-shaped or flask-like configuration. This curved trajectory allows the single suture to effectively engage and approximate wound edges while maintaining proper dermal alignment and preventing tissue inversion, achieving multiple closure goals simultaneously.
Solution Approach 2:
The patent modifies the suture needle trajectory parameters by using a curved or semi-circular path instead of a straight line, and by adjusting the suture tension and depth of penetration through the dermis and subcutaneous tissue, enabling a single pass to achieve equivalent or superior closure quality to multiple passes.
Data Source
AI summary
A stitching method for everted wound closure can include positioning a sutured needle on a first skin flap at a first side of the wound opening, inserting the sutured needle into the epidermis at the first side of the wound opening, passing the needle down through the dermis and toward the subcutaneous fat in either a curved or an acutely angled motion such that the suture forms, respectively, either a general C-shape or laboratory flask-like shape along a first side of the wound opening, and passing the sutured needle horizontally through the juncture or interface of the dermis/subcutaneous fat and back up through the dermis and epidermis toward the second skin flap at the second side of the wound opening in a similar and corresponding fashion as the first passage thereby completing the closure of the wound in a single pass.