Micronized compositions composed of bone grafts and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-12290613-B2
Application number	US-201213647308-A
Country	US
Kind code	B2
Filing date	Oct 8, 2012
Priority date	Oct 6, 2011
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

Described herein are compositions composed of micronized particles derived from one or more components present in placental tissue in combination with one or more bone grafts. The compositions have numerous medical applications. Methods for making and using the micronized compositions are also described herein.

First claim

What is claimed:

1. A micronized placental composition comprising (a) dehydrated micronized particles, selected from the group consisting of micronized placental amnion particles and micronized particles comprising placental amnion and chorion, and (b) one or more bone grafts;
wherein said dehydrated micronized particles comprise a fibroblast cell layer;
wherein the one or more bone grafts are independently selected from the group consisting of an autograft, an allograft, a xenograft, and an alloplast, and any combination thereof;
wherein the amount of said micronized particles to said one or more bone grafts is from 1:99 to 99:1 by volume.

2. The composition of claim 1 , said dehydrated micronized particles having a particle size of from 150 μm to 350 μm.

3. The composition of claim 1 , wherein the dehydrated micronized particles are 100% micronized placental amnion.

4. The composition of claim 1 , further comprising micronized Wharton's jelly.

5. A pharmaceutical composition prepared by admixing the composition of claim 1 with a pharmaceutically-acceptable carrier.

6. The composition of claim 5 , wherein the pharmaceutically acceptable carrier comprises water, saline, Ringer's solution, dextrose solution, Hank's solution, a buffer, or a nonaqueous vehicle.

7. The composition of claim 6 , wherein the buffer comprises a phosphate buffer, bicarbonate buffer, or Tris buffer.

8. The composition of claim 5 , wherein the pharmaceutically acceptable carrier comprises a biocompatible filler.

9. The composition of claim 8 , wherein the filler is carboxymethylcellulose, cellulose, hyaluronic acid or a salt thereof, glycerin, or any combination thereof.

10. The composition of claim 1 , wherein the composition is injectable.

11. The composition of claim 1 , wherein the composition is a foam, gel, putty, or paste.

12. A composition consisting essentially of:
a. dehydrated micronized placental amnion particles, wherein the micronized placental amnion retains a non-viable fibroblast cell layer; and
b. one or more bone grafts; wherein the one or more bone grafts are independently selected from the group consisting of an autograft, an allograft, a xenograft, and an alloplast, and any combination thereof;
wherein the amount of the dehydrated micronized placental amnion particles to the one or more bone grafts is from 1:99 to 99:1 by volume.

13. A micronized composition suitable for use in treating a bone defect, the composition consisting essentially of:
(a) dehydrated micronized placental amnion particles, wherein the micronized placental amnion retains a fibroblast cell layer;
(b) one or more bone grafts; wherein the one or more bone grafts are independently selected from the group consisting of an autograft, an allograft, a xenograft, and an alloplast, and any combination thereof;
(c) a pharmaceutically acceptable carrier admixed with (a) and (b), and
(d) a biodegradable filler;
wherein the amount of said dehydrated micronized placental amnion particles to said one or more bone grafts is from 1:99 to 99:1 by volume.

14. The micronized composition of claim 13 ;
wherein the dehydrated micronized placental amnion particles have a particle size of from 150 μm to 350 μm.

15. The composition of claim 11 , wherein the composition is a foam.

Assignees

• Mimedx Group Inc

Inventors

• Daniel John
• Spencer Randall
• Tofe Robert

Classifications

• A61L2400/06

  Flowable or injectable implant compositions · CPC title

• A61L2430/24

  for joint reconstruction · CPC title

• A61L2430/02

  for reconstruction of bones; weight-bearing implants · CPC title

• A61L27/3608

  Bone, e.g. demineralised bone matrix [DBM], bone powder · CPC title

• A61P43/00

  Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title