Patent ID: 8758636

Claim:
A method for producing a medical functional element, the method comprising: applying a first layer to a substrate layer; etching the first layer to form a lattice structured first layer; undercutting the structured first layer using a wet chemical etching process acting on the substrate layer and forming a catch basin in the substrate layer; applying a web constructional layer having substantially perpendicular walls to the first layer; and removing the substrate layer in order to form a self-supporting lattice structure having interconnected webs; wherein during the step of applying the web constructional layer, scrap material is formed in the catch basin and forms an overlap area with the web constructional layer; wherein the first layer forms a web attachment layer, which has a smaller layer thickness than the web constructional layer and is intimately bonded to the web constructional layer in such a way that the web attachment layer, together with the web constructional layer, forms the webs of the self-supporting lattice structure.