Bone cement with adapted mechanical properties
AssigneeDePuy Synthes Products, Inc.
InventorsElliott Gruskin, Andreas Boger, Andrea Montali, Kurtis Wheeler
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Abstract
A bone cement is shown that includes a monomer, and a non-reactive substance that is fully miscible with the monomer. A resulting cured bone cement exhibits desirable properties such as modification in a stiffness of the material. Modified properties such a stiffness can be tailored to match bone properties and reduce an occurrence of fractures adjacent to a region repaired with bone cement. One example includes adjacent vertebral body fractures in vertebroplasty procedures.
Claims15
A bone cement formed from a mixture of a fluid phase and a powder phase, the mixture consisting of:
- (i) a powder phase having poly methyl(meth)acrylate or derivatives thereof, an initiator compound, a radiopaque agent, and optionally, hydroxyapatite;
- and,
- (ii) a fluid phase having a reactive monomer, an activator, a stabilizer, and, a substance that is N-methyl-pyrrolidone (NMP), dimethyl-sulfoxide (DMSO), polyethylene glycolide (PEG), cellulose, cellulose derivates, or mixtures thereof;
- wherein the substance comprises an amount between 30% and 60% of the fluid phase.
Dependencies are inferred from the claim text.