Elastic Wound Bolster Structure for Uniform Graft Compression
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Solution Overview
Problem
Current wound bolster designs are multi-piece constructs that lack standardization and reproducibility, require complex assembly, and are ineffective for larger wounds, failing to adequately protect wounds from environmental elements and mechanical forces while promoting healing.
Innovation Solution
A wound bolster dressing with an inner non-adherent face, compressible and expandable body, and outer elastic face that generates a compressive force upon deformation, adaptable to various wound sizes and types, featuring materials like textiles and polymers with antimicrobial properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-piece constructs with various materials are used for wound bolsters, then the dressing can be customized for different wound types, but the device complexity increases and standardization becomes difficult
Solution Approach 1:
The patent merges multiple separate components (bolster material, securing mechanism, and dressing layers) into a single integrated wound bolster device. This integration maintains the ability to address different wound types while eliminating the complexity of assembling multiple separate pieces, achieving both versatility and simplicity simultaneously.
Solution Approach 2:
The wound bolster is designed as a universal device that can be applied to various wound types and locations on the body. The single-piece construction incorporates multiple functions (compression, securing, and protection) within one device, eliminating the need for customized multi-piece constructs for different wound scenarios.
2Reliability
If circumferential placement of numerous suture ties is used to secure the wound bolster, then the dressing can be firmly attached to irregular surfaces, but the ease of operation decreases and the procedure becomes more involved
Solution Approach 1:
The patent extracts the complex suture tie placement procedure and replaces it with a simplified securing mechanism integrated into the bolster. This allows firm attachment to irregular surfaces while eliminating the need for numerous individual suture placements, significantly improving ease of operation.
Solution Approach 2:
The wound bolster incorporates self-securing features that allow the device to attach itself to the wound site without requiring complex manual suture placement. The integrated design enables the bolster to conform and secure automatically, reducing the involvement required during application.
3Reliability
If current wound bolster designs are used, then small wounds can be treated, but the effectiveness decreases with increasing wound/defect size
Solution Approach 1:
The wound bolster is designed with dynamic properties that allow it to adapt its shape and size to match the wound dimensions. This enables the same device design to effectively treat wounds of varying sizes, from small to large defects, by conforming to the specific geometry of each wound site.
Solution Approach 2:
The bolster design incorporates adjustable parameters such as size, shape, and compression force that can be modified to suit different wound characteristics. This allows the device to maintain effectiveness across a wide range of wound sizes and types, overcoming the limitation of fixed-size bolsters.
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 dressing effectively protects wounds, reduces mechanical forces, and promotes healing by adapting to different wound sizes and shapes, facilitating skin graft adherence and preventing fluid accumulation.
Implementation Method 1
the outer elastic face is configured, upon securing of the wound bolster to a periphery of the wound on the subject, to generate a compressive force within the compressible and expandable body in response to an applied deformation that is then transmitted as a normal compressive force to the subject
Implementation Method 2
generate a compressive force within the compressible and expandable body
Implementation Method 3
compressible and expandable body
Implementation Method 4
in response to an applied deformation
Data Source
AI summary
A wound bolster includes an inner non-adherent face, a compressible and expandable body, and an outer elastic face where the inner non-adherent face is configured for contact with a wound on a subject and the outer elastic face is configured, upon securing of the wound bolster to a periphery of the wound, to generate a compressive force within the compressible and expandable body in response to applied deformation, which is transmitted as a normal compressive force to the subject.