Process for restoring an osseous defect or deficiency by filling with osseous tissue
Patent 5204106 Issued on April 20, 1993. Estimated Expiration Date: 
April 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3905047 Biocompatible glass ceramic material Inductive collagen based bone repair preparations Patent #: 4563350 InventorsAssigneeApplicationNo. 511303 filed on 04/19/1990US Classes:424/423, Surgical implant or material424/422, Implant or insert623/23.63Including natural bone tissueExaminersPrimary: Page, Thurman K.Assistant: Azpuru, Carlos Attorney, Agent or FirmForeign Patent References
International ClassA61F 002/28Foreign Application Priority Data1989-04-20 FRAbstractProcess for the restoration of an osseous defect or deficiency by filling with osseous tissue with the aid of a bioreactive granular material causing an osteostimulation, the particles of said granular material being disintegrated from the inside, dissolved and replaced by osseous tissue, the granular material containing 40 to 55% SiO2, 10 to 32% Na2 O, 0 to 12% P2 O5 and 10 to 32% CaO, which has a grain size distribution between 280 and 425 μm, sharp edges, an irregular profile and surface microdefects or microcracks. | |
