Polymer cement for percutaneous vertebroplasty
First Claim
1. Fluid cement, for medical use, for filling the vertebral body, characterised in that it comprises:
- a) approximately 70% to 85% by weight of a polymer comprising a polymethylmethacrylate and a methylmethacrylate monomer, and b) approximately from 15% to 30% by weight of a radio-opaque composition.
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Accused Products
Abstract
A fluid cement for medical use for bone reconstruction, in particular for filling the vertebral body, and a binary composition which is intended for the preparation of such a cement. A device for conditioning the binary composition, and a method of preparing a bone cement from a binary composition. The fluid cement according to the invention comprises: a) approximately 70% to 85% by weight of a polymer comprising a polymethylmethacrylate and a methylmethacrylate monomer and b) approximately from 15 to 30% by weight of a radio-opaque composition. Preferably, the radio-opaque composition comprises a radio-opacifier, such as barium sulphate and zirconium dioxide, in a mixture with a calcium phosphate, for example apatite hydroxide.
75 Citations
21 Claims
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1. Fluid cement, for medical use, for filling the vertebral body, characterised in that it comprises:
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a) approximately 70% to 85% by weight of a polymer comprising a polymethylmethacrylate and a methylmethacrylate monomer, and b) approximately from 15% to 30% by weight of a radio-opaque composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification