Opposite-Direction Drawstring Closure for Even Wound Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wound closure devices struggle to evenly close wounds due to the same pulling direction for multiple closure elements, leading to uneven force distribution and potential incomplete closure.
Innovation Solution
A closure device design featuring two closure elements with drawstring portions pulled in opposite directions, integrated with sheet materials like surgical tape, and adjustable engagement mechanisms to ensure even wound closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple closure elements are connected in parallel with the same pulling direction, then the device structure is simple, but the wound cannot be evenly closed
Solution Approach 1:
The patent applies asymmetry by configuring multiple closure elements with different pulling directions. Specifically, the first closure element has its drawstring portion extending in a first direction, while the second closure element has its drawstring portion extending in a second direction that is different from the first direction. This asymmetric arrangement allows the wound to be closed evenly from multiple directions, resolving the contradiction between structural simplicity and closure evenness.
2Manufacturing precision
If closure elements are arranged with different pulling directions, then the wound can be evenly closed, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the closure device into multiple independent closure elements, where each element can be individually adjusted. The device includes a first closure element and a second closure element, each with their own base portion, drawstring portion, and adjustment portion. This segmentation allows flexible arrangement of different pulling directions while maintaining overall device simplicity through modular design.
Solution Approach 2:
The patent applies universality by designing closure elements that can serve multiple functions. Each closure element includes an adjustment portion with engagement portions that can engage with drawstring portions of other closure elements, allowing the same component structure to facilitate both individual closure and coordinated multi-directional closure. This multi-functionality reduces overall device complexity while achieving even wound closure.
Data Source
AI summary
A closure device of the present invention includes two closure elements, and two sheet materials for integrally disposing the two closure elements. Each of the closure elements includes a base portion, a drawstring portion integrally extending from the base portion, and an adjustment portion including an engaged portion having a shape engageable with the drawstring portion. The base portion of one closure element of the two closure elements and the adjustment portion of the other closure element of the two closure elements are integrally disposed on one of the sheet materials, and the adjustment portion of one closure element and the base portion of the other closure element are disposed integrally on the other of the sheet materials.