Devices and methods for the delivery of blood clotting materials to bleeding wounds
View Patent ↗An apparatus for promoting the clotting of blood and controlling bleeding comprises a receptacle for retaining blood clotting material in particulate form therein. A pad for controlling bleeding comprises a mesh structure and a support attached to the mesh structure to facilitate the application of pressure to the pad and the wound. A bandage applicable to a bleeding wound comprises a mesh structure and a flexible substrate attached to the mesh structure, the substrate being a cloth or plastic member that may be adhesively attachable to cover a wound. In any embodiment, at least a portion of the receptacle or mesh structure is defined by a mesh having openings therein, and at least a portion of the particulate blood clotting material is in direct contact with blood. The mesh may include a zeolite powder impregnated or otherwise incorporated therein.
1. An apparatus for promoting the clotting of blood, comprising: a pouch closed on all sides, defined by a mesh on all sides, and a first blood clotting material in powder form incorporated into a material defining said mesh and captured therein so that at least a portion of said powder is exposed on an outer surface defined by said material; and
a second blood clotting material in loose particulate form retained in said pouch;
wherein the material defining the mesh comprises openings which are sufficiently large to allow at least a portion of the particulate blood clotting material to extend through the openings to allow contact with blood outside of the pouch.
2. The apparatus for promoting the clotting of blood of claim 1 , wherein said first blood clotting material comprises a zeolite.
3. The apparatus for promoting the clotting of blood of claim 2 , wherein said second blood clotting material comprises a zeolite.
4. The apparatus for promoting the clotting of blood of claim 3 , wherein the second blood clotting material in loose particulate form comprises zeolite particles having diameters of about 0.2 mm to about 10 mm.
5. The apparatus for promoting the clotting of blood of claim 3 , wherein the second blood clotting material in loose particulate form comprises zeolite particles having diameters of about 1 mm to about 7 mm.
6. The apparatus for promoting the clotting of blood of claim 3 , wherein the second blood clotting material in loose particulate form comprises zeolite particles having diameters of about 2 mm to about 5 mm.
7. The apparatus for promoting the clotting of blood of claim 1 , wherein said mesh structure is flexible.
8. The apparatus for promoting the clotting of blood of claim 1 , wherein at least a portion of said material of said mesh defines a matrix in which said first blood clotting material in powder form is captured.
9. The apparatus for promoting the clotting of blood of claim 1 , wherein at least a portion of said material of said mesh is impregnated with said first blood clotting material in powder form.
10. The apparatus for promoting the clotting of blood of claim 1 , wherein the material defining the mesh comprises at least one of: polymers, metals, fiberglass, organic substances, and cellulose.
11. The apparatus for promoting the clotting of blood of claim 1 , wherein said second blood clotting material comprises oxidized cellulose.
12. The apparatus for promoting the clotting of blood of claim 1 , further comprising a support attached to a portion of the mesh defining said pouch.
13. The apparatus for promoting the clotting of blood of claim 3 , further comprising a support attached to a portion of the mesh defining said pouch.
14. The apparatus for promoting the clotting of blood of claim 4 , further comprising a support attached to a portion of the mesh defining said pouch.
15. The apparatus for promoting the clotting of blood of claim 5 , further comprising a support attached to a portion of the mesh defining said pouch.
16. The apparatus for promoting the clotting of blood of claim 6 , further comprising a support attached to a portion of the mesh defining said pouch.
17. The apparatus for promoting the clotting of blood of claim 11 , further comprising a support attached to a portion of the mesh defining said pouch.
18. The apparatus for promoting the clotting of blood of claim 1 , further comprising a substrate for affixing the pouch to a bleeding area.
19. The apparatus for promoting the clotting of blood of claim 1 , further comprising an adhesive on said substrate, said adhesive being configured to facilitate affixing the pouch on the skin of a wearer.
20. The apparatus for promoting the clotting of blood of claim 3 , further comprising a substrate for affixing the pouch to a bleeding area.