Stimulation of sexually responsive tissue of the vulva

1. A female stimulation system for stimulating sexually responsive tissue of the vulva, in particular an erection or lubrication stimulation system, comprising a fully implantable drug delivery device for delivering a drug in relation to the female's sexually responsive tissue of the vulva to achieve sexual stimulation thereof, wherein the drug delivery device comprises at least one infusion needle adapted to be placed outside the corpora cavernosa in close proximity thereto, and

a) wherein the at least one infusion needle is adapted to change position outside the corpora cavernosa, when the drug delivery device is implanted, and wherein the drug delivery device is further adapted to deliver drugs through the infusion needle outside the corpora cavernosa, when the needle's position is changed outside the corpora cavernosa, or

b) wherein the infusion needle is adapted to be advanced into and retracted from at least one corpus cavernosum, when the drug delivery device is implanted, and wherein the drug delivery device is further adapted to deliver drugs through the infusion needle into the corpus cavernosum, whenever the needle is advanced into the corpus cavernosum.

2. The system of claim 1 , adapted to stimulate an erectile tissue part of the sexually responsive tissue of the vulva to achieve engorgement of blood causing erection of the erectile tissue.

3. The system of claim 1 , adapted to stimulate a lubrication part of the sexually responsive tissue of the vulva to achieve lubrication of sexually responsive tissue of the vulva.

4. The system of claim 2 , adapted to stimulate the nerval system of the sexually responsive tissue of the vulva to achieve engorgement of blood causing erection of the erectile tissue or to achieve stimulation of the lubrication part of the sexually responsive tissue of the vulva causing lubrication of sexually responsive tissue of the vulva.

5. The system of claim 1 , wherein the drug delivery device comprises at least one catheter adapted to be implanted outside the corpora cavernosa in close proximity thereto and wherein the drug delivery device is further adapted to supply drugs through the catheter.

6. The system of claim 1 , wherein the drug delivery device comprises at least one catheter adapted to be implanted in at least one corpus cavernosum and wherein the drug delivery device is further adapted to supply drugs into the corpus cavernosum through the catheter.

7. 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.

8. 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 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 erectile tissue by injecting the substance through said at least one penetration area via the at least one infusion needle.

9. The system of claim 8 , 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.

10. The system of claim 8 , 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.

11. The system of claim 10 , 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.

12. The system of claim 10 , wherein the at least one drive unit is adapted for advancing and refracting 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.

13. The system of claim 10 , wherein the system is adapted such that the time delay between the penetration of a first and a second of said at least two different penetration areas does not exceed 120 seconds, and preferably does not exceed 60 seconds.

14. The system of claim 10 , wherein the system is adapted such that once the at least one infusion needle has been refracted from a first of the at least two different penetration areas, advancement of the at least one infusion needle to a second of the at least two different penetration areas is initiated.

15. The system of claim 8 , 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.

16. The system of claim 15 , wherein the self-sealing material forms at least two window areas in said outer wall, said window areas being positioned for penetration by the tip end of the at least one infusion needle.

17. The system of claim 15 , wherein the self-sealing material comprises a penetration membrane integrated in the outer wall by being sealingly press-fitted into the outer wall.

18. The system of claim 15 , wherein the self-sealing material comprises at least one polymer selected from the group of materials comprising silicon and polyurethane.

19. 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.

20. The system of claim 8 , wherein the drive unit is configured to laterally displace the tip end of one infusion needle between two lateral positions such that the one infusion needle can penetrate the housing's outer wall in at least two different penetration areas, wherein the drive unit is configured to displace the tip end of the one infusion needle in at least one of; laterally to different penetration sites within each of said different penetration areas and at least two different lateral directions.

21. The system of claim 1 , comprising at least one reservoir 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 with the substance from one or more of the at least one second compartment, wherein the substance contained in the at least one second compartment is in at least one of powder form and freeze-dried form.

22. The system of claim 1 , further comprising at least one of: at least one pump (P) adapted for implantation inside the patient's body to advance the substance from the reservoir to the at least one infusion device and an actuating means for direct manual operation of a pump and/or the drive unit.

23. The system of claim 1 , wherein at least one of; at least one motor is provided for actuating at least one of a pump, the drive unit and any other implantable energy consuming part of the system.

24. The system of claim 1 , further comprising an energy source for providing energy to at least one of the pump, the drive unit and the motor, and any other energy consuming part of the system, wherein the system comprises coupling elements for wireless energy transfer from outside the patient's body 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.

25. The system of claim 24 , wherein the feedback information relates to an energy balance which is defined as at least one of; the balance between an amount of wireless energy received inside the human body and an amount of energy consumed by the at least one energy consuming part and a rate of wireless energy received inside the human body and a rate of energy consumed by the at least one energy consuming part.