Patent ID: 8298282

Claim:
A medical implant or instrument, having a deformable structural part with an expandable framework structure, formed by a plurality of metallic struts connected with one another, wherein the struts are composed of at least two layers that are glued together, whereby the layers have different electrical and/or magnetic properties, and wherein the struts have interruptions in conductive regions of each of the at least two layers, in such a manner that current paths that are closed in themselves are avoided within each of the at least two layers of the struts, said interruptions being situated in different positions such that interruptions in a first one of the layers do not overlap interruptions in a second one of the layers, wherein the interruptions are disposed in such a manner that a continuous current path of helical shape that extends from one end region of the structural part to the opposite end region is formed, at least within one of said at least two layers.