IP Library Granted Patent US 9,162,011
Granted Patent B2
US 9,162,011 · App. 13/712,295 · Granted Oct 20, 2015

Flowable matrix compositions and methods

Inventors: Reginald L. Stilwell (Parker, CO); Adrian C. Samaniego (Parker, CO); Brent Atkinson (Highlands Ranch, CO)
Assignee: AlloSource
A61L27/36A61K35/28A61K35/32A61K35/36A61K35/38A61K35/50A61K35/51A61L27/362A61L27/3691A61L27/38
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,162,011
App. No.
13/712,295
Granted
Oct 20, 2015
Kind
B2
Abstract

Flowable matrix compositions and methods of their use and manufacture are provided. Exemplary compositions may include a flowable, syringeable, putty-like form of acellular human dermal matrix. In some cases, compositions may include a moldable acellular collagen extracellular matrix. In use, the matrix compositions can be used to fill or treat skin voids, channel wounds, and other soft tissue deficiencies.

Claims (64)

1. A soft tissue matrix composition for use in a patient treatment prepared by a method consisting of:

providing a human soft tissue material;

processing the human soft tissue material to mechanically disrupt the extracellular matrix collagen or macrostructure and partially disrupt the collagen microfibrillar architecture by a process selected from the group consisting of:

(i) cryofracturing the human soft tissue material;

(ii) cryofracturing and washing the human soft tissue material;

(iii) cryofracturing and triturating the human soft tissue material; and

(iv) cryofracturing, triturating, and washing the human soft tissue material,

wherein the processed tissue material is in a partially hydrated state, the partial hydration comprising a substantial amount of the natural interstitial water of the human soft tissue material.

2. The soft tissue matrix composition according to claim 1 , wherein the composition is present in an applicator assembly.

3. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material that is provided is acellular.

4. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material that is provided is at least partially decellularized.

5. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material that is provided is not partially or completely decellularized.

6. The soft tissue matrix composition according to claim 1 , wherein the soft tissue matrix composition does not adhere to a surgical glove material.

7. The soft tissue matrix composition according to claim 1 , wherein the soft tissue matrix composition does not adhere to a surgical glove material, and wherein the surgical glove material comprises a member selected from the group consisting of latex, neoprene, vinyl, and nitrile.

8. The soft tissue matrix composition according to claim 1 , wherein the composition has a putty consistency.

9. The soft tissue matrix composition according to claim 1 , wherein the composition has a shear resistance of 250-2,500 Pascal seconds at room temperature.

10. The soft tissue matrix composition according to claim 1 , wherein the composition has a shear resistance of 1,000-2,000 Pascal seconds at room temperature.

11. The soft tissue matrix composition according to claim 1 , wherein the composition can pass through a bore hole of a 18 g needle and not through a bore hole of a 26 g needle.

12. The soft tissue matrix composition according to claim 1 , wherein at least a portion of the soft tissue matrix composition is in comminuted form.

13. The soft tissue matrix composition according to claim 1 , wherein the processed tissue material is acellular.

14. The soft tissue matrix composition according to claim 1 , wherein the processed tissue material is at least partially decellularized.

15. The soft tissue matrix composition according to claim 1 , wherein the processed tissue material is not partially or completely decellularized.

16. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material is selected from the group consisting of amnion tissue, umbilical cord tissue, chorionic tissue, intestine tissue, tendon tissue, and skin tissue.

17. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material is skin.

18. The soft tissue matrix composition according to claim 1 , wherein the human soft tissue material is full thickness skin or skin lacking an epidermal layer.

19. The soft tissue matrix composition according to claim 1 , wherein the processing is cryofracturing the human soft tissue material.

20. The soft tissue matrix composition according to claim 1 , wherein the processing is cryofracturing and washing the human soft tissue material.

21. The soft tissue matrix composition according to claim 1 , wherein the processing is cryofracturing and triturating the human soft tissue material.

22. The soft tissue matrix composition according to claim 1 , wherein the processing is cryofracturing, triturating, and washing the human soft tissue material.

23. The soft tissue matrix composition according to claim 1 , wherein at least a portion of the human soft tissue material is in minced or sliced pieces.

24. A soft tissue matrix composition for use in a patient treatment, the composition consisting of

a cryofractured human soft tissue material having a mechanically disrupted extracellular matrix collagen or macrostructure and a partially disrupted collagen microfibrillar architecture,

wherein the cryofractured human soft tissue material is in a partially hydrated state, the partial hydration comprising a substantial amount of the natural interstitial water of the cryofractured human soft tissue material that is present prior to cryofractionation.

25. The soft tissue matrix composition according to claim 24 , wherein the composition is present in an applicator assembly.

26. The soft tissue matrix composition according to claim 24 , wherein the processed tissue material is acellular.

27. The soft tissue matrix composition according to claim 24 , wherein the processed tissue material is at least partially decellularized.

28. The soft tissue matrix composition according to claim 24 , wherein the processed tissue material is not partially or completely decellularized.

29. The soft tissue matrix composition according to claim 24 , wherein the soft tissue matrix composition does not adhere to a surgical glove material.

30. The soft tissue matrix composition according to claim 24 , wherein the soft tissue matrix composition does not adhere to a surgical glove material, and wherein the surgical glove material comprises a member selected from the group consisting of latex, neoprene, vinyl, and nitrile.

31. The soft tissue matrix composition according to claim 24 , wherein the composition has a putty consistency.

32. The soft tissue matrix composition according to claim 24 , wherein the composition has a shear resistance of 250-2,500 Pascal seconds at room temperature.

33. The soft tissue matrix composition according to claim 24 , wherein the composition has a shear resistance of 1,000-2,000 Pascal seconds at room temperature.

34. The soft tissue matrix composition according to claim 24 , wherein the composition can pass through a bore hole of a 18 g needle and not through a bore hole of a 26 g needle.

35. The soft tissue matrix composition according to claim 24 , wherein at least a portion of the soft tissue matrix composition is in comminuted form.

36. The soft tissue matrix composition according to claim 24 , wherein the human soft tissue material is selected from the group consisting of amnion tissue, umbilical cord tissue, chorionic tissue, intestine tissue, tendon tissue, and skin tissue.

37. The soft tissue matrix composition according to claim 24 , wherein the human soft tissue material is skin.

38. The soft tissue matrix composition according to claim 24 , wherein the human soft tissue material is full thickness skin or skin lacking an epidermal layer.

39. The soft tissue matrix composition according to claim 24 , wherein at least a portion of the human soft tissue material is in minced or sliced pieces.

40. A soft tissue matrix composition for use in a patient treatment, the composition consisting of a cryofractured and triturated human soft tissue material having a mechanically disrupted extracellular matrix collagen or macrostructure and a partially disrupted collagen microfibrillar architecture, wherein the cryofractured and triturated human soft tissue material is in a partially hydrated state, the partial hydration comprising a substantial amount of the natural interstitial water of the cryofractured human soft tissue material that is present prior to cryofractionation and trituration.

41. The soft tissue matrix composition according to claim 40 , wherein the composition is present in an applicator assembly.

42. The soft tissue matrix composition according to claim 40 , wherein the cryofractured and triturated tissue material is acellular.

43. The soft tissue matrix composition according to claim 40 , wherein the cryofractured and triturated tissue material is at least partially decellularized.

44. The soft tissue matrix composition according to claim 40 , wherein the cryofractured and triturated tissue material is not partially or completely decellularized.

45. The soft tissue matrix composition according to claim 40 , wherein the soft tissue matrix composition does not adhere to a surgical glove material.

46. The soft tissue matrix composition according to claim 40 , wherein the soft tissue matrix composition does not adhere to a surgical glove material, and wherein the surgical glove material comprises a member selected from the group consisting of latex, neoprene, vinyl, and nitrile.

47. The soft tissue matrix composition according to claim 40 , wherein the composition has a putty consistency.

48. The soft tissue matrix composition according to claim 40 , wherein the composition has a shear resistance of 250-2,500 Pascal seconds at room temperature.

49. The soft tissue matrix composition according to claim 40 , wherein the composition has a shear resistance of 1,000-2,000 Pascal seconds at room temperature.

50. The soft tissue matrix composition according to claim 40 , wherein the composition can pass through a bore hole of a 18 g needle and not through a bore hole of a 26 g needle.

51. The soft tissue matrix composition according to claim 40 , wherein at least a portion of the soft tissue matrix composition is in comminuted form.

52. The soft tissue matrix composition according to claim 40 , wherein the human soft tissue material is selected from the group consisting of amnion tissue, umbilical cord tissue, chorionic tissue, intestine tissue, tendon tissue, and skin tissue.

53. The soft tissue matrix composition according to claim 40 , wherein the human soft tissue material is skin.

54. The soft tissue matrix composition according to claim 40 , wherein the human soft tissue material is full thickness skin or skin lacking an epidermal layer.

55. The soft tissue matrix composition according to claim 40 , wherein at least a portion of the human soft tissue material is in minced or sliced pieces.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2013
From: STILWELL, REGINALD L.; SAMANIEGO, ADRIAN C.; ATKINSON, BRENT
To: ALLOSOURCE
Reel/Frame 030033/0883 →
Continuity (2)
Provisional Application 61577299 · Dec 19, 2011
Related Publication 20130287741A1 · Oct 31, 2013