An electrode bundle for implantation in soft tissue comprises two or more electrodes aligned in parallel. Each electrode comprises an electrode element, an anchoring element joined to the electron element at a portion thereof intermediate between the front end and the rear end and a means bundling the electrodes disposed between the anchoring element and the rear end. The anchoring element forms an angle &agr from 0° to 60° with the electrode element and extends in the direction of the rear end thereof. Also disclosed is a stack of electrode bundles, methods for insertion of the bundle and the stack into soft tissue, and their uses.
