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.
Type:
Grant
Filed:
October 1, 1997
Date of Patent:
October 2, 2001
Assignee:
Phillips-Origen Ceramic Technology, LLC
Inventors:
James R. Johnson, Jeffrey G. Marx, Wesley D. Johnson
Abstract: A strong, porous article useful as a bone substitute material and having an outer surface defining a shape having a bulk volume and having open interconnecting interstices extending throughout said volume and opening through said surface. The article comprises a continuous strong framework structure having interstices which interconnect throughout the bulk volume and a second continuous material occupying at least a portion of the same bulk volume as the framework structure. The second material comprises an osteoinductive and/or osteoconductive composition. This composition may be present in one of several forms. One of these is as a coating on the surface of the framework structure. A second form is in the form of a composite, intimately mixed with the framework material within the framework struts. The third form is as a porous mass within the interstices of the framework structure, having pores which are interconnecting with themselves, and with the interstices of the framework structure.
Type:
Grant
Filed:
October 1, 1997
Date of Patent:
October 24, 2000
Assignee:
Phillips-Origen Ceramic Technology, LLC
Inventors:
Wesley D. Johnson, James R. Johnson, Jeffrey G. Marx