Enriched platelet wound healant

• US 6,303,112 B1
• Filed: 11/23/1999
• Issued: 10/16/2001
• Est. Priority Date: 06/22/1998
• Status: Expired due to Term

• Current Assignee: Nuo Therapeutics, Inc.
• Original Assignee: Informatix Holdings Incorporated
• Inventors: Worden, Charles E.
• Primary Examiner(s): Fay, Zohreh
• Assistant Examiner(s): KWON, YONG SOK
• Application Number:
  US09/424,523
• Time in Patent Office: 693 Days
• Field of Search: 424/450, 424/78.06, 424/93.72, 424/44, 514/724, 514/725, 514/946, 514/947
• US Class Current: 424/78.06
• CPC Class Codes: A61K 2300/00 Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00
• CPC Class Codes: A61K 31/07 Retinol compounds, e.g. vitamin A retinoic acids A61K31/203
• CPC Class Codes: A61K 31/203 Retinoic acids ; Salts thereof
• CPC Class Codes: A61K 31/355 Tocopherols, e.g. vitamin E
• CPC Class Codes: A61K 31/375 Ascorbic acid, i.e. vitamin C; Salts thereof
• CPC Class Codes: A61K 31/702 Oligosaccharides, i.e. having three to five saccharide radicals attached to each other by glycosidic linkages
• CPC Class Codes: A61K 31/7036 having at least one amino group directly attached to the carbocyclic ring, e.g. streptomycin, gentamycin, amikacin, validamycin, fortimicins
• CPC Class Codes: A61K 35/19 Platelets; Megacaryocytes
• CPC Class Codes: A61K 38/4833 Thrombin (3.4.21.5)
• CPC Class Codes: A61K 45/06 Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• CPC Class Codes: A61P 17/02 for treating wounds, ulcers, burns, scars, keloids, or the like
• CPC Class Codes: A61P 43/00 Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Abstract

A wound healant composition comprising a therapeutically effective amount of activated growth factors and ascorbic acid and/or at least one retinoid and/or at least one antibiotic, that facilitates the growth of new tissue.

Claims

1. A method of making a wound healant composition comprising activating a composition comprising a therapeutically effective amount of platelet concentrate and an effective gel viscosity preservation amount of ascorbic acid.

2. The method according to claim 1, wherein said activation occurs by admixing the composition with thrombin.

3. The method according to claim 2, said method further comprising, prior to mixing said thrombin, admixing at least one retinoid in sufficient amount(s) to further enhance wound healing.

4. The method according to claim 3, said method further comprising, prior to mixing said thrombin, admixing vitamin A in sufficient amount to reduce any non-responsiveness of the wounded'"'"'s immune system to stimuli, and vitamin E in sufficient amount to further enhance wound healing.

5. The method according to claim 2, said method further comprising, prior to admixing said thrombin, mixing at least one antibiotic in sufficient amount(s) to reduce infection by bacteria.

6. The method according to claim 5, wherein said antibiotic is at least bacteriocidal to Pseudomonas and Klebsella bacteria.

7. The method according to claim 5, wherein said antibiotic is selected from the group consisting of neosporin, vancomycin and gentamycin, and combinations thereof.

8. The method according to claim 2, further comprising the steps of, prior to mixing thrombin, admixing, in therapeutically effective amount(s), at least one retinoid and at least one antibiotic bacteriocidal to at least Pseudomonas and Klebsella bacteria.

9. A method of making a wound healant composition comprising the steps of:

(a) providing platelet concentrate;

(b) admixing the platelet concentrate with an effective gel viscosity preservation amount of ascorbic acid to form a mixture; and

(c) admixing a therapeutic effective amount of the mixture with an effective platelet activating amount of thrombin so as to form the wound healant composition.

10. A method for treating a wound in a patient comprising the steps of:

(a) providing platelet concentrate;

(b) admixing the platelet concentrate with an effective gel viscosity preservation amount of ascorbic acid to form a mixture;

(c) admixing a therapeutic effective amount of the mixture with an effective platelet activating amount of thrombin so as to form a wound healant composition; and

(d) applying an effective therapeutic amount of the wound healant composition to the patient'"'"'s wound.

11. The method according to claims 9 or 10, wherein said platelet concentrate is obtained by the extracting blood from a patient, centrifuging said blood until the appearance of an essentially separate band of plasma, an essentially separate band of red blood cells, and an essentially intermediate grouping comprised of concentrated platelets therebetwein;

removing said plasma band;

centrifuging said remaining blood components to obtain concentrated platelets;

removing said concentrated platelets.

12. The method according to claims 9 or 10, wherein said platelet concentrate is autologous.

13. A method of treating a wound in a patient comprising the steps of applying to a wound a composition comprising a therapeutically effective amount of activated platelet concentrate and a gel viscosity preservation amount of ascorbic acid.

14. The method according to claim 13, wherein said activation results from the inclusion of an agonist.

15. The method according to claim 14, wherein said agonist is selected from the group consisting of thrombin, collagen, serotonin, ADP and acetylcholine (ACH), and combinations thereof.

16. The method according to claim 13, wherein said activation results from the inclusion of thrombin.

17. The method according to claim 13, wherein said platelet concentrate is autologous.

18. The method according to claim 13, wherein said composition further comprising at least one retinoid.

19. The method according to claim 18, wherein said retinoid is vitamin A.

20. The method according to claim 13, wherein said composition further comprises vitamin E.

21. The method according to claim 14, wherein said composition further comprises at least one antibiotic.

22. The method according to claim 21, wherein said antibiotic is bacteriocidal to at least Pseudomonas and Klebsella bacteria.

23. The method according to claim 21, wherein said antibiotic is selected from the group consisting of a neosporin, vancomycin and gentamycin, and combinations thereof.

24. The method according to claim 13, wherein said wound healant composition further comprises at least one retinoid and at least one antibiotic bacteriocidal to Pseudomoinas and Klebsella bacteria.