Material as a starting material for the preparation of bone cement, process for its preparation and process for the preparation of bone cement
First Claim
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1. A bone cement polymer component as a starting material for preparing bone cement, wherein the polymer component comprises a three-dimensional conglomerate of polymer particles and wherein the polymer component is a solid and contains a pore system.
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Abstract
The invention relates to a material in the form of a three-dimensional conglomerate of polymer particles which is used as a starting material for the preparation of bone cement. The conglomerate is a solid with a uniform pore system and is prepared by bonding the polymer particles to one another at their points of contact or connecting them at their surfaces. After addition of the monomer the material is prepared to a self-curing bone cement and mixed.
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Citations
32 Claims
- 1. A bone cement polymer component as a starting material for preparing bone cement, wherein the polymer component comprises a three-dimensional conglomerate of polymer particles and wherein the polymer component is a solid and contains a pore system.
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12. A process for preparing a bone cement polymer component comprising:
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providing powdered polymer particles; and heating the powdered polymer particles at temperatures between 70° and
120°
C. such the polymer particles are bonded to one another at their points of contact and converted into a three-dimensional conglomerate of polymer particles wherein the conglomerate is a solid and contains a pore system.
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13. A process for preparing a bone cement polymer component comprising:
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providing powdered polymer particles; and pressurizing the polymer particles such that the polymer particles are connected to one another at their surfaces and converted into a three-dimensional conglomerate of polymer particles wherein the conglomerate is a solid and contains a pore system. - View Dependent Claims (18, 19, 30)
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14. A process for preparing a bone cement polymer component comprising:
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providing powdered polymer particles; and applying heat between 50° and
150°
C.;
applying simultaneously with the heat pressurization between 1 and 10 bar, such that the powdered polymer particles are solidified into a three-dimensional solid conglomerate having a pore system. - View Dependent Claims (27, 28, 29)
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15. A process for preparing a bone cement polymer component comprising:
providing powdered polymer particles; and
chemically treating the polymer particles to form a solid in the form of a three-dimensional, solid conglomerate of polymer particles containing a pore system.- View Dependent Claims (16, 17)
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21. A process for preparing bone cement comprising:
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converting polymer particles into a conglomerate in the form of a solid comprising a pore system; and adding a monomer to the conglomerate. - View Dependent Claims (31, 32)
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Specification