Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including interlaminar mechanical fastener
Patent
1993-11-15
1995-11-21
Ryan, Patrick J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including interlaminar mechanical fastener
428373, 428374, 428393, 428394, 428395, 428397, 428400, 428408, B32B 1800, B32B 2700, B32B 3300
Patent
active
054685443
ABSTRACT:
Composite materials formed from bone bioactive glass or ceramic fibers and structural fibers are disclosed. In preferred embodiments, a braid or mesh of interwoven bone bioactive glass or ceramic fibers and structural fibers is impregnated with a polymeric material to provide a composite of suitable biocompatibility and structural integrity. Most preferably, the mesh or braid is designed so that the bioactive fibers are concentrated at the surface of the implant to create a surface comprised of at least 30% bioactive material, thereby providing enhanced bone ingrowth. The interweaving between the bone bioactive glass or ceramic fibers and the core of structural fibers overcomes the problems found in prior composite systems where the bioactive material delaminates from the polymer. Preferred bioactive materials include calcium phosphate ceramics and preferred structural fibers include carbon fibers. Improved prosthetic implants and methods of affixing an implant are thus also disclosed.
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Ducheyne Paul
Ko Frank
LaCourse William
Marcolongo Michele S.
Ryan Patrick J.
The Trustees of the University of Pennsylvania
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