A medical device is provided including an artificial contractile structure which may be used to assist the functioning of a hollow organ. The medical device includes an artificial contractile structure including at least one contractile element configured to contract an organ, in such way that the contractile element is in a resting or in an activated position, at least one actuator configured to activate the contractile structure, and at least one source of energy to power the actuator. The medical device includes a corrosion reducing system configured to reduce corrosion of the medical device.
