The invention relates to a system, which can be implanted in a human body, for neuromodulation of nerves, having electronic signal generating means provided in an implantable signal generating housing (10), voltage supply means connected to or which can be connected to the signal generating means, at least one elongated multi-channel wire electrode means (12), which is connected to or can be connected to the signal generating housing and which is designed for implantation in the human body on a nerve (DNP), preferably in the pelvic floor and/or abdominal region, which multi-channel wire electrode means form a plurality of shell segment electrodes (16a-16d) on a nerve contact region (14) and have, on the ends thereof, fixing means (18) for anchoring the wire electrode means to an implantation location, wherein the signal generator housing has a flat fixing section (20), which is flange-like and/or sits and/or protrudes in the manner of a piece of tissue, which enables the surgical fixation of the signal generating housing to a tissue, muscle or bone region (PB) in the body, in particular to a region of the pubic bone, to a muscle portion and/or to a fascia.
