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Last Updated: September 18, 2021

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Claims for Patent: 10,022,474

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Summary for Patent: 10,022,474
Title:Bone grafts including osteogenic stem cells, and methods relating to the same
Abstract: Bone grafts and constructs including stem cells are provided. Example bone grafts include osteogenic stem cells seeded on a scaffold of osteoconductive cortico-cancellous chips and/or osteoinductive demineralized bone. Example constructs include extracellular matrix on a synthetic scaffold, in which the ECM is secreted from MSCs seeded onto the synthetic scaffold. Also provided are methods of making the present bone grafts and scaffolds. Further provided are methods of promoting bone healing and treating wound healing, by administering the present bone grafts and constructs to a mammal in need thereof. Also provided are kits that include the present bone grafts and/or constructs, or components thereof.
Inventor(s): Bhat; Archana (Phoenixville, PA), Rao; Shairali (Lansdale, PA), Laskowitz; Daniel (Lancaster, PA)
Assignee: Globus Medical, Inc. (Audubon, PA)
Application Number:15/362,889
Patent Claims:1. A method of treatment for bone healing comprising: administering to a mammal in need thereof a bone graft comprising osteogenic stem cells seeded on a scaffold, the scaffold including a mixture of osteoinductive demineralized cortical bone and osteoconductive non-demineralized cortico-cancellous chips without an additional natural or synthetic material, the cortico-cancellous chips obtained from condyles and the demineralized cortical bone obtained from cortical shafts of long bones, wherein the osteogenic stem cells are obtained from cells cultured from a mixture of bone marrow and cells from cancellous bone treated with collagenase, and the osteogenic stem cells are viable cells capable of bone regeneration.

2. The method of claim 1, wherein the osteogenic stem cells are present on the scaffold such that the bone graft has a seeding density of 20,000 to 100,000 cells/cm.sup.2.

3. The method of claim 1, wherein the osteogenic stem cells are mesenchymal stem cells.

4. The method of claim 3, wherein the mesenchymal stem cells are derived from a human source.

5. The method of claim 3, wherein the mesenchymal stem cells are derived from a bovine source.

6. The method of claim 1, wherein the bone graft has a putty-like consistency.

7. The method of claim 1, wherein the osteogenic stem cells, demineralized bone, and cortico-cancellous chips are derived from the same donor.

8. The method of claim 1, wherein the scaffold is mix of demineralized cortical bone and cortico-cancellous chips in a ratio of about 1:1, 1:2, or 1:3 demineralized cortical bone to cortico-cancellous chips.

9. The method of claim 1, wherein the osteogenic stem cells are obtained by treating the cancellous bone from a femur or tibia with collagenase and separating loosely attached cells by centrifugation.

10. The method of claim 1, wherein the osteogenic stem cells comprise osteogenic cells isolated from bone marrow harvested from iliac crest.

11. The method of claim 1, wherein the osteogenic stem cells further comprise osteogenic cells isolated from adipose tissue.

12. The method of claim 1, wherein the bone graft is frozen in a freezing media that contains DMSO.

13. A method of treatment for bone healing comprising: administering to a mammal in need thereof a previously frozen bone graft comprising a mixture of non-demineralized cortico-cancellous chips and demineralized cortical bone which form a scaffold without an additional natural or synthetic material, the cortico-cancellous chips obtained from condyles and the demineralized cortical bone obtained from cortical shafts of long bones; and osteogenic stem cells seeded on the scaffold to form the bone graft having viable cells capable of bone regeneration, wherein the osteogenic stem cells are obtained from cells cultured from a mixture of bone marrow and cells from cancellous bone treated with collagenase.

Details for Patent 10,022,474

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Estimated Patent Expiration Status Orphan Source
Smith And Nephew SANTYL collagenase OINTMENT;TOPICAL 101995 001 1965-06-04 ⤷  Free Forever Trial Globus Medical, Inc. (Audubon, PA) 2033-10-18 RX search
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Number >Approval Date >Patent No. >Assignee >Estimated Patent Expiration >Status >Orphan >Source

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