Wound or surgical dressing
View Patent ↗A wound or surgical dressing is disclosed. The wound or surgical dressing is configured to cover or surround a wound, a surgical incision, or any type of skin irritation. In accordance with the present disclosure, the wound or surgical dressing is treated with a bacteriostatic composition that is capable of binding and trapping negatively charged matter, such as bacteria, pathogens, and the like. The bacteriostatic composition comprises a cationic polymer, a cationic oligomer, or particles coated with a cationic material. The bacteriostatic composition is bonded to the wound or surgical dressing in a manner such that the bacteriostatic composition is not substantially transferred to a patient being treated.
1. A wound or surgical dressing comprising:
a substrate configured to contact or surround a wound or surgical site, wherein the substrate comprises cellulosic fibers; and
a chemical compound covalently bonded to the cellulosic fibers of the substrate and being located on the substrate so as to contact a patient at or near a wound or surgical site, wherein the covalent bond substantially prevents the chemical compound from transferring to the patient, wherein the chemical compound comprises an aluminum oligomer or an aluminum salt.
2. A wound or surgical dressing as defined in claim 1 , wherein the aluminum oligomer comprises aluminum chlorohydrate.
3. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound comprises particles coated with a cationic polymer or a cationic oligomer.
4. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound is applied to a treated area on the substrate, the chemical compound being applied to the treated area in an amount from about 0.01% to about 20% by weight.
5. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound is applied to a treated area on the substrate, the chemical compound being applied to the treated area in an amount from about 0.05% to about 10% by weight.
6. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound is crosslinked.
7. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a gauze.
8. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises an elastic material.
9. A wound or surgical dressing as defined in claim 8 , wherein the elastic material comprises a stretch-bonded laminate or a neck-bonded laminate.
10. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a spunbond web, a meltblown web, or a laminate thereof.
11. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a spunbond/meltblown/spunbond laminate.
12. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a coform web.
13. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises an airlaid web.
14. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a bonded carded web, a wetlaid web, a foam, a film, a woven fabric, or a knitted fabric.
15. A wound or surgical dressing as defined in claim 1 , wherein the substrate comprises a hydroentangled web.
16. A wound or surgical dressing as defined in claim 15 , wherein the hydroentangled web comprises pulp fibers and synthetic fibers.
17. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound binds with negatively charged bacteria, pathogens, fungi, ions, or molecules.
18. A wound or surgical dressing as defined in claim 1 wherein the chemical compound bonded to the substrate reduces bacterial growth by at least about 50%.
19. A wound or surgical dressing as defined in claim 1 wherein the chemical compound bonded to the substrate reduces bacterial growth by at least about 90%.
20. A wound or surgical dressing as defined in claim 1 wherein the chemical compound bonded to the substrate reduces bacterial growth by at least about 99%.
21. A wound or surgical dressing as defined in claim 1 , wherein the wound or surgical dressing comprises an adhesive bandage.
22. A wound or surgical dressing as defined in claim 1 , wherein the wound or surgical dressing comprises a wrapping.
23. A wound or surgical dressing comprising:
a substrate comprising cellulosic fibers and configured to contact or surround a wound or surgical site, the substrate comprising a material selected from the group consisting of gauze, a stretch-bonded laminate, a neck-bonded laminate, a spunbond web, a meltblown web, a coform web, an airlaid web, a wetlaid web, and a hydroentangled web; and
a chemical compound applied to the substrate, the chemical compound being located on the substrate so as to contact a patient at or near a wound or surgical site, the chemical compound being covalently bonded to the cellulosic fiber of the substrate so that the chemical compound does not substantially transfer to the patient, the chemical compound having a net positive charge for binding with negatively charged matter, the chemical compound comprising an aluminum salt, an aluminum ion, an aluminum complex, an aluminum molecule, or an aluminum oligomer.
24. A wound or surgical dressing as defined in claim 23 , wherein the chemical compound comprises particles.
25. A wound or surgical dressing as defined in claim 23 , wherein the chemical compound comprises aluminum chlorohydrate.
26. A wound or surgical dressing as defined in claim 1 , wherein the aluminum oligomer comprises aluminum chlorohydrol.
27. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound comprises aluminum particles.
28. A wound or surgical dressing as defined in claim 1 , wherein the chemical compound comprises alumina particles.
29. A wound or surgical dressing as defined in claim 23 , wherein the aluminum oligomer comprises aluminum chlorohydrol.