Coating of a vascular endoprosthesis
AssigneesAlexander Ruebben, Aachen Scientific International Pte. Ltd.
InventorAlexander Ruebben
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Abstract
The invention relates to a method for coating a vascular endoprosthesis, wherein the outside of the vascular endoprosthesis is wetted at least partially with a first solution of an active substance, the vascular endoprosthesis is moved in a rotational movement about the longitudinal axis of the vascular endoprosthesis, and a radially acting mechanical force is applied to the outside of the vascular endoprosthesis. The rotational movement has the effect that the solution is carried outward by the centrifugal force, such that no active substance deposits in the interior of the vascular endoprosthesis. The application of a mechanical force to the outside of the vascular endoprosthesis then has the effect of creating crystallization nuclei, such that the active substance can crystallize out.
Claims21
A method for coating a vascular endoprostheis, said method comprising the following steps:
- a) at least a partial wetting of the outside of the vascular endoprosthesis with a first solution of an active substance;
- b) moving the vascular endoprosthesis into a rotational movement about the longitudinal axis of the vascular endoprosthesis;
- c) applying a radially acting mechanical force on the outside of the vascular endoprosthesis by rolling the vascular endoprosthesis over an elastomer surface.
Dependencies are inferred from the claim text.