A hemostatic device for promoting the clotting of blood includes a gauze substrate, a clay material disposed on the gauze substrate, and also a polyol such as glycerol or the like disposed on the gauze substrate to bind the clay material. When the device is used to treat a bleeding wound, at least a
A hemostatic device for promoting the clotting of blood includes a gauze substrate, a clay material disposed on the gauze substrate, and also a polyol such as glycerol or the like disposed on the gauze substrate to bind the clay material. When the device is used to treat a bleeding wound, at least a portion of the clay material comes into contact with blood emanating from the wound to cause the clotting. A bandage that can be applied to a bleeding wound to promote the clotting of blood includes a flexible substrate and a gauze substrate mounted thereon. The gauze substrate includes a clay material and a polyol. A hemostatic sponge also includes a gauze substrate and a dispersion of hemostatic material and a polyol on a first surface of the substrate.
대표청구항▼
1. A hemostatic device comprising: a flexible absorbent substrate comprising cloth, gauze, mesh, or strands; anda hemostatic material positioned on or in the substrate in a region configured to contact blood from a bleeding wound during use, thereby promoting clotting, the hemostatic material compri
1. A hemostatic device comprising: a flexible absorbent substrate comprising cloth, gauze, mesh, or strands; anda hemostatic material positioned on or in the substrate in a region configured to contact blood from a bleeding wound during use, thereby promoting clotting, the hemostatic material comprising a powder or particulate material that is made using a process involving the use of kaolin or kaolinite;wherein the substrate initially exists separately from the hemostatic material;wherein the combination of the substrate and the hemostatic material is sealed in a sterilized packaging and not saturated with a liquid when in the sterilized packaging; andwherein the hemostatic device is configured so that the hemostatic material does not substantially detach from the substrate before use. 2. The hemostatic device of claim 1, wherein the process of making the hemostatic material includes heating the kaolin or kaolinite and forming a vitrified or glassy material. 3. The hemostatic device of claim 1, wherein the process of forming the hemostatic material includes forming a slurry of kaolin, water, and glycerol. 4. The hemostatic device of claim 1, wherein the hemostatic material is bound to the substrate using a binder. 5. The hemostatic device of claim 4, wherein the binder is a glycerol. 6. The hemostatic device of claim 1, further comprising a sulfate. 7. The hemostatic device of claim 1, wherein the device is subjected to a drying process during manufacturing. 8. The hemostatic device of claim 1, wherein the substrate includes a permeable pouch to resist detachment of the hemostatic material from the substrate. 9. The hemostatic device of claim 1, wherein the hemostatic material is incorporated into the substrate to resist detachment of the hemostatic material from the substrate. 10. The hemostatic device of claim 1, wherein the hemostatic material is trapped within a matrix to resist detachment of the hemostatic material from the substrate. 11. A hemostatic device comprising: a flexible absorbent substrate; anda hemostatic material positioned on or in the substrate in a region configured to contact blood from a bleeding wound during use, thereby promoting clotting, the hemostatic material comprising an aluminum silicate;wherein the substrate initially exists separately from the hemostatic material;wherein the combination of the substrate and the hemostatic material is not configured to be saturated with a liquid prior to application to the bleeding wound at the time of use; andwherein the hemostatic device is configured so that the hemostatic material substantially remains on or in the substrate before use. 12. The hemostatic device of claim 11, wherein the hemostatic material is made at least in part by heating kaolin or kaolinite and forming a vitrified or glassy material. 13. The hemostatic device of claim 11, wherein the hemostatic material is applied by providing a slurry of kaolin, water, and glycerol. 14. The hemostatic device of claim 11, wherein the hemostatic material is bound to the substrate using a binder. 15. The hemostatic device of claim 14, wherein the binder is a glycerol. 16. The hemostatic device of claim 11, further comprising a sulfate. 17. The hemostatic device of claim 11, wherein the device is subjected to a drying process during manufacturing. 18. The hemostatic device of claim 11, wherein the hemostatic device includes a permeable pouch to substantially retain the hemostatic material on the substrate. 19. The hemostatic device of claim 11, wherein the hemostatic material is incorporated into the substrate to substantially retain the hemostatic material on the substrate. 20. The hemostatic device of claim 11, wherein the hemostatic material is trapped within a matrix to substantially retain the hemostatic material on the substrate. 21. The hemostatic device of claim 11, wherein the hemostatic material comprises clay. 22. The hemostatic device of claim 21, wherein the hemostatic material comprises kaolin or kaolinite.
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