초록

Biocompatible bone graft material having a biocompatible, resorbable polymer and a biocompatible, resorbable inorganic material exhibiting macro, meso, and microporosities.

대표청구항 ▼

1. A bone graft material comprising a first portion and a second portion, wherein each of said first portion and said second portion comprises a homogeneous composite of biocompatible, resorbable collagen and calcium phosphate, and wherein each of said first portion and said second portion have macr

1. A bone graft material comprising a first portion and a second portion, wherein each of said first portion and said second portion comprises a homogeneous composite of biocompatible, resorbable collagen and calcium phosphate, and wherein each of said first portion and said second portion have macro-, meso-, and microporosity; andwherein said first portion and said second portion have different porosities. 2. The bone graft material of claim 1, wherein the total porosity of the bone graft material is from about 30% to about 95%. 3. The bone graft material of claim 1, wherein said macro-, meso-, and microporosity of each respective portion are interconnected. 4. The bone graft material of claim 1, further comprising a third portion, said third portion having a porosity that is different from the porosities of the first portion and the second portion. 5. The bone graft material of claim 1, wherein said first, second and third portions are arranged so as to form a porosity gradient. 6. The bone graft material of claim 5, wherein the porosity of the third portion is greater than the porosity of the second portion, and the porosity of the second portion is greater than the porosity of the first portion. 7. The bone graft material of claim 4, further comprising a fourth portion, said fourth portion having a porosity that is different from the porosities of the first portion, the second portion, and the third porosity portion. 8. The bone graft material of claim 7, wherein said portions are arranged so as to form a porosity gradient. 9. The bone graft material of claim 7, wherein the porosity of the fourth portion is greater than the porosity of the third portion, the porosity of the third portion is greater that the porosity of the second portion, and the porosity of the second portion is greater than the porosity of the first portion. 10. A bone graft material comprising a first portion and second portion, wherein each of said first portion and said second portion comprise a homogenous composite of biocompatible, resorbable collagen and a oxidation-reaction product of at least one metal cation, at least one oxidizing agent, and at least one oxidizable precursor anion, and wherein each of said first portion and said second portion have macro-, meso-, and microporosity; andwherein said first portion and said portion have different porosities. 11. The bone graft material of claim 10, wherein said oxidation-reaction product comprises calcium phosphate. 12. The bone graft material of claim 10, wherein said calcium phosphate is β-tricalcium phosphate. 13. The bone graft material of claim 10, further comprising a third portion, said third portion having a porosity that is different from the porosities of the first portion and the second portion. 14. The bone graft material of claim 13, wherein said portions are arranged to form porosity gradient. 15. The bone graft material of claim 14, wherein the porosity of the third portion is greater than the porosity of the second portion, and the porosity of the second portion is greater than the porosity of the first portion. 16. The bone graft of claim 13, further comprising a fourth portion, said fourth portion having a porosity that is different from the porosities of the first portion, the second portion, and the third portion. 17. The bone graft material of claim 16, wherein said portions are arranged so as to form a porosity gradient. 18. The bone graft material of claim 17, wherein the porosity of the fourth portion is greater than the porosity of the third portion, the porosity of the third portion is greater than the porosity of the second portion, and the porosity of the second portion is greater than the porosity of the first portion. 19. The bone graft material of claim 2 or 10, wherein the total porosity of the bone graft material is from about 70% to about 80%. 20. An open-framed implant comprising the bone graft material of claim 1 or 10 in a central opening of a frame, wherein the frame comprises a metal or a load-bearing resorbable composite. 21. The open-framed implant of claim 20, wherein the metal is titanium. 22. The open-framed implant of claim 20, wherein the load-bearing resorbable composite is PEEK.