Bone substitutes
AssigneePhillips-Origen Ceramic Technology, LLC
InventorsJames R. Johnson, Jeffrey G. Marx, Wesley D. Johnson
Life of this patent
Estimating the term…
Abstract
A strong, porous article useful as a bone substitute material. The article comprises a continuous strong framework structure having struts defining interstices which interconnect throughout the bulk volume, and may have ceramic or osteoconductive material occupying at least a portion of the same bulk volume as the framework structure. Either as a coating on the strong framework struts or between the framework struts and the ceramic or osteoconductive—osteoinductive materials is a resilient material which serves to distribute stresses within the article.
Claims32
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, and a resilient coating within said interstices and encasing said struts to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure, wherein said resilient coating comprises a bioresorbable polymer.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, and a resilient coating within said interstices and substantially entirely encasing said struts to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure.
A strong, porous article useful as a bone substitute material comprising a composite of zirconia and calcium phosphate forming a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, and a resilient coating within said interstices and encasing said struts to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure, wherein said resilient coating comprises a bioresorbable polymer.
A strong, porous article useful as a bone substitute material comprising a composite of zirconia and calcium phosphate forming a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, and a resilient coating within said interstices and substantially entirely encasing said struts to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, a resilient coating within said interstices and encasing said struts to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure, and an osteoconductive material contained within said interstices but separated from said struts by the resilient coating encasing said struts.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, an osteoconductive material contained within said interstices but separate from said struts, and a resilient coating within said interstices and encasing said struts and said osteoconductive material to provide residual strength to the struts and osteoconductive material and retain mechanical integrity of the article upon strut failure.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices having 3—3 connectivity, and a resilient coating within said interstices and encasing said struts, to provide residual strength to the struts and retain mechanical integrity of the article upon strut failure, said coated interstices opening onto a surface of the article to admit therewith a calcium phosphate bone cement.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices, an osteoconductive material contained within said interstices but separate from said struts, and a resilient coating within said interstices and encasing said struts and said osteoconductive material to provide residual strength to the struts and osteoconductive material and retain mechanical integrity of the article upon strut failure, wherein the osteoconductive material is a continuous interconnected body.
A strong, porous article useful as a bone substitute material comprising a continuous strong supportive sintered, load-bearing framework having struts defining a plurality of interconnecting interstices, an osteoconductive material contained within said interstices but separate from said struts, and a resilient material within said interstices that completely fills the spaces between the struts and the osteoconductive material to provide residual strength to the struts and osteoconductive material and retain mechanical integrity of the article upon strut failure, wherein the osteoconductive material is a continuous interconnected body.
Dependencies are inferred from the claim text.