Inserter

1. An inserter for an intrauterine system comprising:

a handle having a longitudinal opening, the longitudinal opening having a first end and a second end, the handle comprising a slider arranged in the longitudinal opening, the slider being movable and having a first end and a second end;

a plunger attached to the handle;

an insertion tube attached to the slider; and

a lock arranged inside the handle and adapted to reversibly lock the intrauterine system in relation to the plunger via a removal string of the intrauterine system, the lock being controllable by the slider, the lock comprising:

a main part that is rotatably mounted on a shaft or an axle on the handle,

an extension, and

a counterpart,

wherein the removal string is immobilized between the main part and the counterpart when the lock is in a locked position, and

wherein the removal string is released when a part of the slider presses against the extension to turn the main part around the shaft or the axle.

2. The inserter of claim 1 , wherein moving the slider forward causes the lock to move into the locked position.

3. The inserter of claim 1 , wherein moving the slider backwards causes the lock to move into a released position.

4. The inserter of claim 1 , further comprising a flange arranged on the insertion tube that is adjustable such that its distance from a front end of the intrauterine system corresponds to a depth of a uterus.

5. The inserter of claim 1 , wherein the handle forms a channel in which the insertion tube slides in a longitudinal direction.

6. The inserter of claim 1 , wherein the main part comprises an opening through which the removal string passes through.

7. The inserter of claim 1 , wherein the shaft or the axle is irregularly shaped.

8. The inserter of claim 1 , wherein:

the extension is a first extension,

the main part comprises a second extension,

the removal string is immobilized between the second extension and the counterpart when

the lock is in a locked position, and

the removal string is released when the part of the slider presses against the first extension

to turn the main part around the shaft or the axle.

9. A kit comprising the inserter of claim 1 and the intrauterine system, wherein:

the intrauterine system comprises a therapeutic component; and

the therapeutic component of the intrauterine system is at least mainly arranged inside a first end of the insertion tube.

10. The kit of claim 9 , wherein the therapeutic component is selected from the group consisting of a reservoir for active agent, a metallic wire, and a combination thereof.

11. The kit of claim 10 , wherein the reservoir essentially consists of an elastomer and an active agent.

12. The kit of claim 10 , wherein the metal wire is made of copper.

13. A one-handed method of using an inserter to position an intrauterine system inside a uterus, the inserter comprising a handle, a slider, an insertion tube, and a lock, the method comprising:

holding the handle with one hand;

inserting with the one hand the insertion tube into the uterus; and

retracting with the one hand the slider so that a first end of the slider moves towards a first end of an opening of the handle to cause the slider to press against an extension of a main part of the lock to turn the main part around a shaft or axle on the handle to release a removal string of the intrauterine system.

14. The method of claim 13 , further comprising:

adjusting a flange on the insertion tube in a longitudinal direction so that a distance from a first end of the insertion tube to the flange corresponds to a depth of the uterus; and

wherein inserting with the one hand the insertion tube into the uterus includes inserting the insertion tube into the uterus based on a location of the flange.

15. The method of claim 13 , wherein advancing the slider towards the first end of the opening of the handle causes the removal string to be immobilized between the main part and a counterpart of the lock.

16. The method of claim 13 , further comprising removing the inserter from the uterus.

17. The method of claim 13 , wherein retracting with the one hand the slider so that the first end of the slider moves towards the first end of the opening of the handle includes moving the slider backwards.