Polymeric cement for percutaneous vertebroplasty

摘要

A fluid cement for medical use in filling the vertebrae comprising 70-85 wt.% of a polymer comprising a poly(methyl methacrylate) and a methyl methacrylate monomer and 15-30 wt.% of a radio-opaque composition comprising a radio-opaque compound and calcium phosphate. Independent claims are included for (1) a binary composition for the preparation of the claimed bone cement consisting of a liquid component comprising a methyl methacrylate monomer and a powder component comprising a poly(methyl methacrylate) in which the powder comprises 25-50 wt.% of the radio-opaque composition with respect to the powder; (2) a device comprising two compartments one containing the liquid component and the other the powder component; (3) a method of preparing the cement by mixing the two components into a homogeneous mass; (4) a fluid cement prepared using the claimed device or by the claimed procedure.