Claims
- 1. A porous surgical implant material for replacing or augmenting tissue in the body comprising an composite material made of an interconnected omni-directional porous matrix structure comprised of synthetic resin and bioactive glass particles distributed throughout said matrix.
- 2. The implant recited in claim 1 further wherein said porous matrix has a porosity that permits vascularization and tissue ingrowth.
- 3. The surgical implant as recited in claim 1 wherein said porous matrix has a porosity of approximately 100 to 500 microns.
- 4. The surgical implant as recited in claim 1 wherein the pore volume is approximately 40 to 60 percent.
- 5. The surgical implant as recited in claim 1 wherein said bioactive glass particles comprising silicon dioxide, sodium oxide, calcium and phosphorus oxide.
- 6. The surgical implant recited in claim 5 wherein said bioactive glass particles comprising approximately 45% silicon dioxide, 45% sodium oxide, and the remaining 10% calcium and phosphorus oxide.
- 7. The surgical implant as recited in claim 1 wherein said synthetic resin comprises polyethylene.
- 8. A method of repairing or augmenting tissue comprising inserting a porous material comprised of a synthetic resin and bioactive glass matrix into a patients body wherein said matrix has a pore size that permits vascularization and tissue ingrowth, provide structural support and said bioglass promotes said tissue ingrowth.
- 7. The method recited in claim 8 wherein said augmentation or repair is performed on the cranio-maxillofacial surgery.
- 8. A method for making a surgical implant comprising the steps of combining bioglass particles with a synthetic resin fines and mixing said bioglass and resins fines to from an admixture, introducing said admixture into a mold, applying heat to said mold, whereby said resins fines are sintered together to from a porous implant having bioglass interspersed throughout.
- 9. The method recited in claim 8 wherein said fines comprise polyethylene resins.
- 10. The method of claim 9 wherein said fines are selected to form a macroporous implant that permits vascularization and tissue ingrowth.
Parent Case Info
[0001] This invention is directed to an improved surgical implant matrix for filling the space of large cavities in the body. The applicant claims the benefit of the U.S. Provisional Applicant No. 60/397,609 filed on Jul. 23, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
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60397609 |
Jul 2002 |
US |