Stimulation of penis erection

A method of implanting a penis erection stimulation system in a patient's body, comprising a fully implantable drug delivery device adapted to deliver a drug in relation to a penis to achieve erection of the penis, wherein the drug delivery device comprises at least one infusion needle adapted to be placed outside a left or a right corpus cavernosum in close proximity thereto, wherein the fully implantable drug delivery device is adapted to be non-invasively powered, when implanted, wherein the infusion needle is adapted to be advanced into and retracted from, as well as deliver at least one drug when advanced into, at least one of:

• the left or right corpus cavernosum, one or two of deep arteries thereof, muscle tissue regulating blood flow through the right, left or both corpus cavernosum, and tissue in close proximity to the left, right or both corpus cavernosum, and whenever the needle is or has been advanced, when the drug delivery device is implanted, the at least one infusion needle is further configured to fit in a position in between the left and right corpus cavernosum at a base of penile tissue placed inside the patient's body where the left and right corpus cavernosum are deviating away from each other, and wherein the method comprises the step of:
• cutting skin of the patient's body,
• dissecting free an area near the left and right corpus cavernosum,
• placing the drug delivery device within said dissected area arranged next to at least one of:
• the left and right corpus cavernosum, the two deep arteries of the right and left corpus cavernosum, the muscle tissue regulating blood flow through the left and right corpus cavernosum and another kind of tissue in close proximity to the left and right corpus cavernosum, so as to allow for stimulation of the penis erection by delivering the drug, and
• placing the at least one infusion needle in a first position in the patient's body in between the left and right corpus cavernosum at the base of the penile tissue placed inside the patient's body where the left and right corpus cavernosum are deviating away from each other.