Processes for producing a sleeve for an electrode for medical applications

A method of producing a sleeve for a ring electrode for electrophysiological and neuro-medical applications from a metallic tape, wherein the tape and the sleeve fabricated from it consist of a biocompatible metal or a biocompatible metallic compound, the method comprising:

• punching into the tape to define repetitive structures, wherein the repetitive structures each comprise at least one surface that is connected by at least one fin to at least one external strip, wherein at least the at least one external strip connects the repetitive structures to each other on the margin;
• subsequently forming a sleeve mold from a multiple of the at least one surfaces of the repetitive structures through multiple reforming steps by deep-drawing and/or another reforming technique;
• and
• punching off the sleeve mold such that the sleeve is formed comprising a first tube-shaped region with a larger diameter and a second tube-shaped region with a smaller diameter, wherein the first region with the larger diameter comprises a larger external diameter and internal diameter than the second region with the smaller diameter, and the two regions are connected to each other in one-part manner.