Stimulation of penis erection

1. A penis erection stimulation system, 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 cavemosum in close proximity thereto, wherein the fully implantable drug delivery device is adapted to be noninvasively powered, when implanted, wherein the infusion needle is adapted to be advanced into and retracted from at least one of; the left or right corpus cavemosum, one or two of deep artries thereof, muscle tissue regulating blood flow through the right, left or both corpus cavemosum and tissue in close proximity to the left, right or both corpus cavernosum, and whenever the needle is advanced, when the drug delivery device is implanted, the drug delivery device is further adapted to deliver drugs through the infusion needle into at least one of; the left or right corpus cavemosum, one or two of the 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 cavemosum, and wherein

the at least one infusion needle being placed in a body configured to fit in a position in between the left and right corpus cavernosum at a base of the penile tissue placed inside a human body where the left and right corpus cavernosum are deviating away from each other.

2. The system of claim 1 , wherein the at least one infusion needle has a tube-like body closed at the tip end and having a laterally arranged delivery exit port.

3. The system of claim 1 ,

wherein the at least one infusion needle is disposed at least partly within at least one housing with a tip end of the at least one infusion needle arranged for penetrating the at least one housing's outer wall, the at least one housing being adapted for implantation inside a patient's body, and

wherein at least one drive unit (D) adapted for implantation inside the patient's body is provided, the at least one drive unit being coupled to the at least one infusion needle and arranged at least for advancing and retracting the tip end of the at least one infusion needle so that the at least one infusion needle penetrates, upon advancement of the tip end or ends thereof, said outer wall in at least one penetration area so as to allow for stimulation of penis erection by injecting the substance through said at least one penetration area via the at least one infusion needle.

4. The system of claim 1 , wherein the drive unit is configured to laterally displace the tip end of at least one of said at least one infusion needle in at least two different lateral directions to different penetration sites within said at least one penetration area.

5. The system of claim 3 , wherein the at least one infusion needle is arranged for penetrating the at least one housing's outer wall in at least two different penetration areas.

6. The system of claim 5 , wherein the system is adapted such that the at least one infusion needle penetrates said at least two different penetration areas upon a single command or single action from the patient.

7. The system of claim 6 , wherein the at least one drive unit is adapted for advancing and retracting the tip end of the at least one infusion needle in such way that it penetrates, upon advancement of the tip end or ends thereof, said at least two different penetration areas either simultaneously or in immediate time succession.

8. The system of claim 3 , wherein at least in the penetration area or areas the outer wall is made from a material which is self-sealing in respect of penetrations resulting from said at least one infusion needle.

9. The system of claim 8 , wherein the self-sealing material comprises a penetration membrane integrated in the outer wall by being sealingly press-fitted into the outer wall.

10. The system of claim 1 , wherein the at least one infusion needle is flexibly bendable, wherein the tip end of each of the at least one infusion needle is arranged for penetrating the outer wall of a first housing and the other end thereof is arranged in a second housing for remote implantation inside the patient's body, the injection needle being sufficiently long to bridge the distance from the second housing for remote implantation to the first housing and further through the first housing up to the outer wall of the first housing.

11. The system of claim 1 , further comprising at least one reservoir (R 1 , R 2 ) adapted for implantation inside the patient's body to store the drug to be delivered, wherein the reservoir comprises at least one first compartment accommodating or adapted to accommodate a first substance and at least one second compartment accommodating or adapted to accommodate a second substance, further comprising a mixing chamber for mixing the substance from the at least one first compartment, wherein the substance contained in the at least one second compartment is in at least one of: powder form, freeze-dried form.

12. The system of claim 11 , wherein a plurality of the second compartments is liquid-tightly sealed against the at least one first compartment, wherein the system further comprises a mechanism for individually opening a connection between the second compartments and the at least one first compartment.

13. The system of claim 3 , further comprising at least one of; at least one pump adapted for implantation inside the patient's body to advance the drug from the reservoir to the at least one drug delivery device, and an actuating means are provided for direct manual operation of the pump and/or the drive unit.

14. The system of claim 13 , wherein at least one motor is provided for actuating the at least one of the pump (P), the drive unit and any other implantable energy consuming part of the system.

15. The system of claim 14 , further comprising an energy source for providing energy to at least one of the pump, the drive unit, the motor and any other energy consuming part of the system, and wherein the system futher comprises coupling elements for wireless energy transfer from the external power supply to the energy storage means for charging the energy storage means from outside a patient's body, when the energy storage means is implanted in a patient's body, wherein at least one feedback sensor is provided and adapted to sense one or more physical parameters of the patient and/or process parameters of the system, further comprising a feedback subsystem adapted to wirelessly send feedback information relating to the energy to be stored in the energy storage means from inside the human body to the outside thereof, wherein the system is adapted to use the feedback information for adjusting the amount of wireless energy transmitted by the energy transmitter and/or adapted to provide feedback on parameters relevant for the treatment, including the one or more physical parameters of the patient and/or the process parameters of the system.

16. The system of claim 1 , wherein at least one feedback sensor (F) is provided and adapted to sense one or more physical parameters of the patient and/or process parameters of the system, wherein the at least one feedback sensor is adapted to sense one or more parameters of a group of parameters relating to: drug level, flow volume in a blood vessel, pressure, electrical parameters, distension, distance, and a parameter related to the charging process from inside the patient's body to the external power supply for controlling the charging process, further comprising a feedback subsystem adapted to wirelessly send feedback information relating to the energy to be stored in the energy storage means from inside the human body to the outside thereof, wherein the system is adapted to use the feedback information for adjusting the amount of wireless energy transmitted by the energy transmitter and/or adapted to provide feedback on parameters relevant for the treatment, including the one or more physical parameters of the patient and/or the process parameters of the system.

17. The system of claim 1 , further comprising an energy source for providing energy to at least one of; a pump, a drive unit, a motor and any other energy consuming part of the system, wherein the energy source comprises at least one of; an internal power supply for implantation within the housing implanted in a patient's body, an internal power supply for implantation remote from the housing accommodating the infusion needle implanted in a patient's body, an external power supply adapted to wirelessly transfer energy, and an external power supply for charging the internal power supply from outside the patient's body, when the internal power supply is implanted in a patient's body.

18. The system of claim 1 , wherein at least one control unit is provided for controlling at least one of, an amount of the drug to be delivered into the patient's body a pump, a drive unit, a motor, and any other energy consuming part of the system, wherein the control unit comprises at least one of; an external component for controlling the system from outside the patient's body, an implantable control unit adapted to receive a signal from the external control unit, and a pressure sensitive switch so as to be manually operable by the patient when the switch is implanted subcutaneously in a patient's body.