Production of materials having an anisotropic structure
AssigneeJulius-Maximilians-Universitaet Wuerzburg
InventorsKai Stuckensen, Uwe Gbureck, Juergen Groll
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Abstract
The present invention relates to a process for the production of a multi-layered material having anisotropic pores. It further relates to a multi-layered material which can be produced by the process according to the invention, and to the use of a multi-layered material as a chondral support matrix, a meniscus support matrix or an intervertebral disc support matrix.
Claims15
A process for the production of a multi-layered material having anisotropic pores, comprising the steps of
- providing a temperature gradient by two temperature-controllable bodies arranged opposite one another,
- arranging and solidifying in the temperature gradient a first substance which contains at least one sublimable compound in order to form a first layer,
- arranging and solidifying in the temperature gradient at least one further substance which contains at least one sublimable compound in order to form at least one further layer adjacent to the preceding layer,
- subliming the compound and
- consolidating the layers.
The process of any of the preceding claims, characterized in that the sublimable compound is selected from the group consisting of aqueous solvents, polar solvents, non-polar solvents, organic acids, organic bases, mineral acids and mineral bases.
The process of any of the preceding claims, characterized in that the first substance and at least one further substance, preferably every further substance, have the same sublimable compound.
The process of any of the preceding claims, characterized in that at least one of the temperature-controllable bodies has a microstructuring.
A medical material having at least two different layers, characterized in that pores extend anisotropically through at least two layers of the material.
Use of a multi-layered material as a chondral support matrix, a meniscus support matrix or an intervertebral disc support matrix, characterized in that pores extend anisotropically through at least two layers of the material.
Dependencies are inferred from the claim text.