Processed soft tissue for topical or internal application
View Patent ↗Disclosed herein are novel injectable, biocompatible compositions, preferably, comprising a combination of particulate, processed tissue and a carrier. Specifically disclosed are compositions comprising acellular, pulverized dermis combined with at least one glycosaminoglycan and/or gelatin. The subject compositions provide for improved retention of the composition at the site of implantation. Also disclosed are medical applications using the disclosed compositions, such as cosmetic enhancement or filling in of voids due to abnormalities, injuries, surgery, or aging. In addition, kits comprising at least one container of a freeze-dried, particulate tissue and at least one container of a glycosaminoglycan, or crude platelet extract and used thereof as a wound treatment/dressing, are disclosed.
1. An implantable composition comprising an admixture of a carrier and acellular, pulverized dermis tissue, wherein said dermis tissue is allogenic or xenogenic, or both, wherein said carrier is a gelatin and wherein said gelatin comprises about 10 to about 30 percent, by weight, of said composition.
2. The implantable composition of claim 1 , wherein said composition is injectable and thermoplastic.
3. The implantable composition of claim 1 further comprising at least one biologically active agent.
4. The implantable composition of claim 3 , wherein said biologically active agent is an antiviricide effective against HIV and hepatitis; an antimicrobial and/or antibiotic selected from the group consisting of erythromycin, bacitracin, neomycin, penicillin, polymyxin B, tetracycline, viomycin, chloromycetin, streptomycin, cefazolin, ampicillin, azactam, tobramycin, clindamycin and gentamycin or a growth factor or a combination of any of the foregoing.
5. The implantable composition of claim 3 wherein said biologically active agent is a growth factor.
6. The implantable composition of claim 5 wherein said growth factor is epidermal growth factor (EGF), transforming growth factor-alpha (TGF-alpha), transforming growth factor-beta (TGF-beta), human endothelial cell growth factor (ECGF), granulocyte macrophage colony stimulating factor (GM-CSF), bone morphogenetic protein (BMP), nerve growth factor (NGF), vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), insulin-like growth factor (IGF), or platelet derived growth factor (PDGF), or a combination of the foregoing.
7. The implantable composition of claim 6 wherein said growth factor is PDGF.
8. An implantable composition comprising an admixture of a carrier and acellular, pulverized dermis tissue, wherein said dermis tissue is allogenic or xenogenic, or both, wherein said carrier is hyaluronic acid, and said hyaluronic acid comprising about 0.5 to about 5 percent of said composition.
9. A kit comprising a first syringe containing an amount of a reconstitution fluid and a second syringe comprising an admixture of freeze-dried acellular, pulverized dermis, gelatin and a carrier selected from the group consisting of hyaluronic acid and chondroitin sulfate, wherein when the contents of the first syringe and the second syringe are combined to provide a reconstituted composition, the gelatin comprises 10% to 30% by weight of reconstituted composition, the hyaluronic acid comprises 0.5 to 5 percent by weight of said reconstituted composition and the chondroitin sulfate comprises 1% to 30% by weight of said reconstituted composition.
10. The composition of claim 1 further comprising an analgesic.
11. The composition of claim 10 , wherein said analgesic is buprenorphine, morphine, an opiate, a nonsteroidal anti-inflammatory agent or a combination thereof.
12. A kit comprising at least one container containing an amount of acellular, particulate dermis and at least one container comprising an aqueous carrier solution, wherein said aqueous carrier solution comprises at least one glycosaminoglycan selected from the group consisting of hyaluronic acid, chondroitin sulfate and a mixture thereof, wherein said hyaluronic acid comprises 0.5 to 5 percent by weight of said solution, and wherein said chondroitin sulfate comprises 1 percent to 15 percent by weight of said solution.
13. The kit of claim 12 wherein said at least one container containing an amount of acellular, particulate dermis and/or said at least one container containing an aqueous carrier solution is a syringe or vial.
14. The kit of claim 13 wherein said at least one container containing an amount of acellular, particulate dermis is a 0.5 CC syringe.
15. A piece of acellular, dermis infused with a solution comprising one or more glycosaminoglycans, wherein said one or more glycosaminoglycans are selected from the group consisting of hyaluronic acid and chondroitin sulfate, wherein said hyaluronic acid comprises 0.5 to 5 percent by weight of said infused dermis, and wherein said chondroitin sulfate comprises 1 percent to 15 percent by weight of said infused dermis.
16. The piece of acellular, dermis of claim 15 , wherein said piece of acellular dermis is in sheet form.
17. The piece of acellular, dermis of claim 15 , wherein said one or more glycosaminoglycans comprises hyaluronic acid, or a salt thereof, chondroitin sulfate, or a combination thereof.
18. The kit of claim 12 , further comprising a separate container containing an amount of a hemostatic agent, optionally, said hemostatic agent is combined with the acellular, particulate dermis.
19. The kit of claim 18 , wherein said hemostatic agent is collagen, fibrin, fibrinogen, chitosan, cellulose, gelatin, or a combination thereof.
20. The kit of claim 19 , wherein said hemostatic agent is powdered collagen.
21. A kit comprising a first container comprising freeze-dried, pulverized dermis and a second container comprising a reconstitution solution, wherein said reconstitution solution comprises hyaluronic acid at a concentration of from about 0.5 percent to about 5 percent by weight of said solution, or chondroitin sulfate at a concentration of from about 1 percent to about 15 percent by weight of said solution, or a combination thereof.
22. The kit of claim 21 wherein said reconstitution solution comprises said hyaluronic acid.
23. The kit of claim 21 , wherein said dermis is allogenic or xenogenic.