Wound Dehiscence Prevention Device with Elastic Tension Control
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Solution Overview
Problem
Current methods for preventing wound dehiscence, especially incised wounds, are inadequate as they often result in conspicuous scarring, tissue necrosis due to excessive suture thread thickness, and require complex techniques for application and removal, with no established methods for addressing dehiscence caused by necrosis from poor circulation.
Innovation Solution
A device comprising a dehiscence preventive member that covers the wound and surrounding tissues, held by a plurality of members, with a contraction preventive member to maintain expansion and reduce physiological tension, allowing for easy application and reducing the risk of dehiscence by slackening tissues and reducing tension on suture threads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a thick suture thread is used to prevent dehiscence, then the strength of the suture is improved, but the tissues surrounding the wound undergo necrosis due to insufficient blood circulation
Solution Approach 1:
The invention divides the load-bearing function into two separate components: the thin suture thread for closing the wound and the separate padding implement for preventing dehiscence. This segmentation allows each component to perform its specific function optimally without the harmful effects of using a thick suture thread alone.
Solution Approach 2:
The padding implement acts as an intermediary element between the suture thread and the external environment. It absorbs and distributes the external forces that would otherwise be transmitted directly to the suture thread and surrounding tissues, thereby preventing both suture breakage and tissue necrosis.
2Shape
If a thin suture thread is used to minimize scarring, then the cosmetic appearance is improved, but the suture thread breaks under external force
Solution Approach 1:
The invention separates the cosmetic function (thin suture thread) from the mechanical strength function (padding implement). The thin suture thread minimizes scarring while the padding implement provides the necessary mechanical protection against external forces.
Solution Approach 2:
The padding implement is applied beforehand to cushion and protect the sutured wound from external forces. This pre-protection allows the use of thin suture threads without risking breakage, as the padding absorbs the impact before it can reach the suture.
3Reliability
If conventional padding implements are used to prevent dehiscence, then the protection against external force is improved, but the complexity of application and removal techniques increases
Solution Approach 1:
The padding implement is designed to be self-adhering through adhesive plasters, eliminating the need for complex attachment techniques. The implement can be easily applied and removed by the patient themselves without requiring specialized medical skills, while still providing effective dehiscence prevention.
4Reliability
If a padding implement is applied to prevent dehiscence, then the protection against external force is improved, but the patient must constantly monitor and protect the implement from external forces
Solution Approach 1:
The padding implement is designed with adhesive plasters that enable easy self-application and self-removal by the patient. This eliminates the need for constant medical intervention and allows patients to manage the implement independently, improving convenience while maintaining protection.
Solution Approach 2:
The padding implement is designed to be flexible and adaptable to the patient's movements and daily activities. The adhesive construction allows it to conform to the body and remain in place during normal activities, reducing the need for constant monitoring and adjustment.
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
Effectively prevents wound dehiscence by reducing physiological tension, allowing for thinner suture threads, minimizing scarring, and facilitating spontaneous recovery, regardless of suture status, and can be applied to various types of wounds including contused and bite wounds.
Implementation Method 1
the present invention uses an elastic material which can be used for medical applications and also uses a material having such an elasticity that can outdo the physiological tension
Data Source
AI summary
A dehiscence preventive member is adapted to cover up a wound and surrounding tissues. A plurality of holding members are adapted to hold the dehiscence preventive member closely upon the wound and the surrounding tissues, and a contraction preventive member keeping the dehiscence preventive member suitably expanded in a dehiscence direction and of preventing the expanded dehiscence preventive member from contracting. The contraction distance of the dehiscence preventive member in the dehiscence direction is equal to or greater than a contraction distance of the holding member in the dehiscence direction. The dehiscence preventive is closely applied to the wound and surrounding tissues after expansion in the dehiscence direction such that the contraction distance of the dehiscence preventive member in the dehiscence direction is equal to or greater than the contraction distance of the dehiscence preventive member in a direction normal to the dehiscence direction.