Shaped load-bearing osteoimplant and methods of making same
AssigneeWarsaw Orthopedic, Inc.
InventorsTodd M. Boyce, Lawrence A. Shimp, Albert Manrique, John W. Winterbottom
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Abstract
A load-bearing osteoimplant which comprises a shaped, coherent aggregate of bone particles.
Claims44
A load-bearing osteoimplant comprising a shaped coherent mass of bone particles possessing a bulk density of greater than about 0.7 g/cm3.
A load-bearing osteoimplant comprising a shaped coherent mass of bone particles possessing a wet compressive strength of at least about 3 MPa.
A method for making a load-bearing osteoimplant which comprises:
- a) providing an aggregate containing bone particles and, optionally, one or more optional components selected from the group consisting of binder, filler, plasticizer, wetting agent, surface active agent, biostatic/biocidal agent, bioactive substance, reinforcing material and reinforcing structure;
- and,
- b) shaping the aggregate into a coherent mass in at least one shaping operation to provide a shaped composite having an initial configuration for subsequent shaping into a desired osteoimplant or a final configuration corresponding to that of the osteoimplant.
An integral implant insertion instrument and implant comprising an implant insertion instrument portion integrally attached to an implant portion by a weakened, break-away connection such that on insertion of the implant portion at the implantation site, the implant insertion instrument portion is separated from the implant portion by a breaking-away force applied thereto, the implant portion being a load-bearing osteoimplant comprising a shaped, coherent mass of bone particles.
A load-bearing osteoimplant comprising a shaped, coherent mass of bone particles possessing a bulk density of greater than about 0.7 g/cm3 and a wet compressive strength of at least about 3 MPa, wherein the bone particles comprise a combination of nondemineralized and demineralized bone.
Dependencies are inferred from the claim text.