Negative Pressure Wound Closure Device with Oculiform Stabilizing Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing negative pressure wound therapy systems face challenges in effectively closing large wounds, such as abdominal compartment syndrome wounds, due to incomplete reapproximation of muscular and fascial tissue, and the application of negative pressure can compress wound fillers, slowing healing and preventing wound margin joining.
Innovation Solution
A negative pressure wound closure device featuring a stabilizing structure with an oculiform shape that collapses more horizontally than vertically, accompanied by foam layers and stabilizing clips to secure the structure within the wound, facilitating tissue reapproximation and preventing upward displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If negative pressure is applied to wound filler (foam), then wound fluids are removed and healing is promoted, but atmospheric pressure compresses the foam downward and outward against wound margins, slowing healing and preventing wound margin joining
Solution Approach 1:
The wound filler is divided into multiple segments: a lower portion positioned beneath the fascia layer to provide support without being compressed, and an upper portion positioned above the fascia layer to receive negative pressure. This segmentation allows the lower portion to resist compression while the upper portion facilitates fluid removal and healing promotion.
Solution Approach 2:
The fascia layer serves as an intermediary between the wound filler and the negative pressure source. It protects the lower portion of the wound filler from direct compression by atmospheric pressure, while still allowing the negative pressure to act on the upper portion for effective fluid removal and healing promotion.
2Reliability
If existing negative pressure treatment systems are used, then wound closure is eventually achieved, but closure times are lengthy and underlying muscular and fascial tissue may not be appropriately reapproximated
Solution Approach 1:
The lower portion of the wound filler is pre-positioned beneath the fascia layer before negative pressure application. This preliminary positioning ensures that the fascial layer is properly supported and reapproximated from the outset, preventing tissue displacement and reducing overall closure time while maintaining reliable wound closure.
3Ease of operation
If foam or wound fillers are inserted into the wound, then wound space is filled and negative pressure can be applied, but the foam is compressed downward and outward against wound margins, slowing the healing process
Solution Approach 1:
The foam is segmented into lower and upper portions relative to the fascia layer. The lower portion, positioned beneath the fascia, is protected from compression and maintains its volume to facilitate negative pressure application. The upper portion, positioned above the fascia, receives the negative pressure effectively without causing margin compression, thus maintaining both ease of operation and healing speed.
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 wound closure by reducing the need for repetitive foam replacement, promoting faster healing by maintaining negative pressure while ensuring proper tissue reapproximation and preventing foam compression, thus accelerating tissue remodeling.
Implementation Method 1
Negative pressure wound therapy has been used in the treatment of wounds, and in many cases can improve the rate of healing while also removing exudates and other deleterious substances from the wound site
Implementation Method 2
The bottom layer of foam may comprise a lip that extends outward into the surrounding tissue
Implementation Method 3
Negative pressure wound therapy has been used in the treatment of wounds, and in many cases can improve the rate of healing while also removing exudates and other deleterious substances from the wound site
Data Source
AI summary
The present invention relates to wound closure devices, systems and methods. Embodiments of the invention facilitate closure of the wound by preferentially contracting under negative pressure to provide for movement of the surrounding tissues. Some embodiments may utilize tissue securing portions that aid in securing the invention within a wound.