Delivery device

1. A delivery device, comprising:

an elongated body comprising a front end and a rear end;

a button arranged within the rear end of the elongated body;

a non-rotating, axial moveable sleeve, wherein the sleeve comprises a front end and a rear end, wherein the rear end of the sleeve is configured to interact with the button;

a rotatable cylindrical driver comprising a front end and a rear end, wherein the rear end of the rotatable cylindrical driver is configured to directly interact with the front end of the non-rotating, axial moveable sleeve; and

a rotating threaded plunger rod extending through the rotatable cylindrical driver.

2. The delivery device according to claim 1 ,

wherein the rotatable cylindrical driver is not axially moveable.

3. The delivery device according to claim 1 ,

wherein the elongated body comprises a passage arranged with threads through which the rotating threaded plunger rod is arranged.

4. The delivery device according to claim 3 ,

wherein the front end of the rotatable cylindrical driver is arranged adjacent the passage of the elongated body.

5. The delivery device according to claim 1 , wherein

the rotating threaded plunger rod extends through the rotatable cylindrical driver in a rotationally locked, but slidable manner.

6. The delivery device according to claim 5 , wherein

the rotating threaded plunger rod extends through the rotatable cylindrical driver in a rotationally locked, but slidable manner by way of a spline design.

7. The delivery device according to claim 3 , wherein

a front end surface of the front end of the rotatable cylindrical driver comprises a ratchet interface comprising inclined ramps arranged to co-act with corresponding ramps provided on a surface surrounding the passage of the elongated body.

8. The delivery device according to claim 1 , wherein

the front end of the sleeve comprises a circumferential ledge, the circumferential ledge comprising a plurality of cut-outs,

wherein the cut-outs are configured to mate with a plurality of longitudinal ridges provided along an inner surface of the elongated body.

9. The delivery device according to claim 1 , wherein

a plurality of inclined ridges are arranged along an inner wall of the sleeve,

wherein the plurality of inclined ridges cooperate with a plurality of inclined surfaces of a plurality of protrusions provided by the rotatable cylindrical driver.

10. The delivery device of claim 1 , wherein

a plurality of inclined surfaces are provided on a rear end surface of the sleeve,

wherein the plurality of inclined surfaces co-act with a plurality of corresponding surfaces of a tubular part of the button.

11. The delivery device of claim 10 , wherein

the plurality of inclined surfaces provided on the rear end surface of the sleeve are arranged to co-act with the plurality of corresponding surfaces of a tubular part of the button, and

serve the purpose of holding the button in closed and open positions.

12. The delivery device of claim 11 , wherein

in the open position, the plurality of longitudinal ridges are aligned with a plurality of grooves of the button,

thereby enabling the button to be pushed into the elongated body.

13. The delivery device of claim 10 , wherein

the plurality of inclined surfaces provided on the rear end surface of the sleeve and the plurality of corresponding surfaces of a tubular part of the button,

serve the purpose of providing a tactile feedback to a user of the delivery device.

14. The delivery device according to claim 1 , wherein

the button further comprises a front cylindrical part provided inside the elongated body.

15. The delivery device according to claim 14 , wherein

the button is prevented from rearward movement by a circumferential ledge that is in contact with an inwardly directed ledge of the elongated body.

16. The delivery device of claim 1 , wherein

the button further comprises a front cylindrical part that is arranged with a plurality of longitudinal grooves arranged with a pitch and a width that corresponds to a plurality of longitudinal ridges provided on an inner surface of the elongated body.

17. The delivery device of claim 1 ,

wherein a front end surface of the button is arranged with a plurality of inclined surfaces and stop ledges.

18. The delivery device of claim 1 ,

wherein a perimeter surface of the button further comprises a release button,

wherein the release button interacts with a respective through hole or indentation on a perimeter surface of the elongated body near the rear end of the elongated body.

19. The delivery device according to claim 1 ,

wherein the button comprises a lockable button.

20. The delivery device according to claim 19 ,

wherein the lockable button is unlocked by being turned until a plurality of stop ledges on a front end surface of the lockable button come into contact with a plurality of ridges provided by the elongated body.

21. The delivery device according to claim 19 ,

wherein the lockable button is unlocked by pressing a release button whereby the lockable button is ejected towards its rear end and forced to turn until a plurality of stop ledges on a front surface come in contact with a plurality of ridges of the elongated body due to a pressure exerted by a spring.

22. The delivery device of claim 1 further comprising:

a resilient member arranged between an inner surface of the button and the rear end of the rotatable cylindrical driver.

23. The delivery device of claim 1 , further comprising a container arranged within the front end of the elongated body.

24. The delivery device of claim 1 , wherein the plunger rod is rotatable relative to the elongated body.