Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1985-09-09
1988-01-12
Lilling, Herbert J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 18, 623 66, 523114, 523115, 523116, 524533, 524853, 128 92YQ, 4332021, A61L 2500, C08L 3306, C08K 509, C08K 700
Patent
active
047189100
ABSTRACT:
The object of this invention is a bone cement comprising a mixture of polyacrylate and/or polymethacrylate pre-polymers, monomeric acrylic and/or methacrylic acid derivatives, a polymerization catalyst and possibly a stabilizing agent and an accelerator, and a process for the preparation and application thereof. In the bone cement of the invention, the pre-polymer is a mixture of 5-50% by weight of polyacrylate and/or polymethacrylate fibers with a length of greater than 2 mm and up to 15 mm and a thickness of 50-750 .mu.m, and 50-95% by weight of polyacrylate and/or polymethacrylate pearl polymers consisting of 1-140 .mu.m polymer beads, preferably between 30 and 40 .mu.m as uniform in size as possible, the surface of which is advantageously enlarged by mechanical and/or chemical treatment. The prepolymer may also consist entirely of bead-shaped particles.
REFERENCES:
patent: 3872047 (1975-03-01), Jandourek
patent: 4373217 (1983-02-01), Draenert
patent: 4404309 (1983-09-01), Masler
patent: 4457878 (1984-07-01), Draenert
patent: 4547390 (1985-10-01), Ashman et al.
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