Solid Hemostatic Tablet for Uniform Wound Pressure
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Solution Overview
Problem
Existing hemostatic products, such as powders and granulations, face challenges in delivering effective hemostasis due to messiness and uneven application, leading to slower action and reduced efficacy compared to solid forms, which are denser and have a reduced surface area.
Innovation Solution
A solid hemostatic tablet formed by compressing a mixture of insoluble cation exchange material and anhydrous salt ferrate, with a specific particle size range and composition, is applied to wounds with pressure to create a uniform seal and reservoir for sustained hemostasis and antimicrobial protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If loose hemostatic powder is used, then the surface area in contact with the wound is larger, but the application is messy and the action is slower
Solution Approach 1:
The hemostatic material is segmented into a solid tablet form that can be easily applied and controlled, while still providing effective hemostasis through its compressed structure
Solution Approach 2:
The physical state of the hemostatic material is changed from loose powder to compressed solid tablet, altering its density, surface area, and application characteristics while maintaining hemostatic efficacy
2Ease of operation
If hemostatic powder is compressed into a solid tablet, then the application is less messy, but the surface area is reduced
Solution Approach 1:
The compression process changes the physical parameters of the hemostatic material, creating a solid tablet with controlled density and surface area that balances ease of application with effective wound contact
3Stability of the object's composition
If high compressive force is applied to form a dense tablet, then the tablet is less messy, but the surface area is reduced
Solution Approach 1:
High compressive force is applied to transform the hemostatic powder into a dense solid tablet, changing its physical state to improve stability and reduce messiness while controlling the resulting surface area
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 solid tablet adheres more tenaciously to wounds, achieving hemostasis faster and providing long-term protection against bleeding and infection, contrary to expectations, as it applies uniform pressure and maintains a larger surface area in contact with the wound compared to loose powders.
Implementation Method 1
a solid hemostatic tablet formed by compression of a powder of an insoluble cation exchange material and an anhydrous salt ferrate
Implementation Method 2
a portion of at least 40% of said beads being fractured
Implementation Method 3
anhydrous salt ferrate
Data Source
Figure 1~6A
Figure 7~8
Figure 9~10
AI summary
A hemostatic tablet preferably including potassium ferrate and a cation ion exchange resin pressure formed into a tablet for delivery to a bleeding wound. The tablet improves the rate of adhesion to a bleeding wound surface, and allows a significantly greater and more uniform pressure to be exerted by manual compression of the tablet on the wound site, as compared to that of a thin layer of scattered hemostatic powder. After the seal is formed from the interaction of blood or exudates with the immediate contacting surface of the tablet, the bulk of the unused tablet easily delaminates from the seal making clean up facile. If the unused portion of the tablet is not removed from the wound site, a reservoir of hemostatic dressing stops further bleeding and to provide antimicrobial protection and healing. The tablet may be applied to any surface orientation and take any shape and thickness possible.