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A device and use method for ejecting a liquid stream towards an eye, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication w

A device and use method for ejecting a liquid stream towards an eye, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication with the container, d) a pump mechanism operable to deliver at least part of the liquid from the container through the opening to form the stream and e) an eyecup with a contact surface arranged for contact with the eye or its facial surroundings. The eyecup is arranged movable with respect to the opening or housing between at least two positions i) an active position with said eyecup contact surface at a defined safety distance to the opening and ii) a rest position with the eyecup contact surface at a position more proximal than in the active position and a sensor is arranged to allow discrimination between the positions. The pump mechanism may include a pump driver able to store cocked energy for driving the pump mechanism and at least one activation mechanism may be present and operable to initiate the device for the liquid delivery, whereby a driving mechanism is arranged to transform manual or stored energy both i) into cocked energy of the pump driver and ii) into direct or stored energy for operation of the activation mechanism.

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1. A device for ejecting a liquid stream towards an eye, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication with the cont

1. A device for ejecting a liquid stream towards an eye, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication with the container, d) a pump mechanism operable to deliver at least part of the liquid from the container through the opening to form the stream, e) an eyecup with a contact surface arranged for contact with the eye or its facial surroundings, wherein the eyecup is arranged movable with respect to the opening or housing between at least two positions comprising i) an active position with said eyecup contact surface at a defined safety distance to the opening, and ii) a rest position with the eyecup contact surface at a position more proximal than in the active position, and f) a sensor adapted to allow discrimination between the positions. 2. The device of claim 1, wherein the opening is arranged fixed with respect to the housing when moving the eyecup. 3. The device of claim 1, wherein the container is removably attached to the housing. 4. The device of claim 1, wherein a plurality of single-dose containers are connected and arranged to be moved sequentially into an operative position relative to the pump mechanism. 5. The device of claim 1, wherein the eyecup is arranged to allow movement to at least one further position farther away from the housing or opening than the active position. 6. The device of claim 1, wherein the eyecup is entirely removable from the housing. 7. The device of claim 1, wherein the eyecup is arranged to move with a translational movement. 8. The device of claim 1, wherein the eyecup is arranged to be moved with a rotational component. 9. The device of claim 8, wherein the eyecup is connected to the housing via a hinge. 10. The device of claim 1, wherein the sensor system is adapted to generate at least one signal and the device is adapted to perform at least one action on the basis of the signal, directly or after processing into a control signal. 11. The device of claim 10, wherein the signal generation or processing comprises at least one mechanical step. 12. The device of claim 10, wherein the signal generation or processing comprises at least one electromagnetic step. 13. The device of claim 10, wherein the sensor is adapted to generate a signal representative for continuous eyecup positions. 14. The device of claim 10, wherein the device is adapted to generate a signal representative for discrete eyecup positions. 15. The device of claim 1, wherein the device is adapted to deliver at least one message detectable by a user on the basis of the signal. 16. The device of claim 1, wherein the device is adapted to perform at least one operation step of the device. 17. The device of claim 15, wherein the signal is adapted to enable or disable the pump mechanism. 18. The device of claim 15, wherein the device is adapted to only be triggered when the eyecup is in the active position. 19. The device of claim 15, wherein the signal is adapted to disable or enable an initiation action for the container. 20. The device of claim 15, wherein the signal is adapted to enable or disable a device control action. 21. The device of claim 15, wherein the signal is adapted to enable or disable a device door. 22. The device of claim 1, wherein the eyecup is arranged movable with respect to the opening. 23. The device of claim 1, wherein the eyecup is arranged movable with respect to the housing. 24. A method for operating an ejection device to eject a liquid stream, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication with the container, d) a pump mechanism operable to deliver at least part of the liquid from the container through the opening to form the stream , e) a part arranged to define a predetermined distance to a target and arranged movable with respect to the opening or housing between at least two positions comprising i) an active position with said part at a defined safety distance to the opening, and ii) a rest position with the part at a position more proximal than in the active position, and f) a sensor adapted to allow discrimination between the positions, the method comprising moving the part between the active position and the rest position or vice versa, generating a signal representative for either the active position or the rest position, optionally processing the signal to obtain a control signal, and using the signal or control signal to perform at least one action on the container, the opening, the pump mechanism or the part. 25. A device for ejecting a liquid stream, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communication with the container, d) a pump mechanism, including a pump driver able to store cocked energy for driving the pump mechanism, operable to deliver at least part of the liquid from the container through the outlet to form the stream, e) at least one activation mechanism operable, separately from the pump mechanism, to initiate the device for the liquid delivery, and f) a driving mechanism adapted to transform manual or stored energy both i) into cocked energy of the pump driver, and ii) into direct or stored energy for operation of the activation mechanism. 26. The device of claim 25, comprising one or more mechanical springs adapted to store at least part of the cocked energy. 27. The device of claim 25, wherein the driving mechanism is adapted to receive manual energy. 28. The device of claim 25, wherein the driving mechanism is adapted to receive stored energy. 29. The device of claim 25, wherein the stored energy comprises electrical energy. 30. The device of claim 25, wherein the driving mechanism comprises a transmission. 31. The device of claim 30, wherein the transmission is adapted to perform gear down from lower to higher force. 32. The device of claim 25, wherein the activation mechanism is adapted to drive an indexing action in which a container is brought into operative relationship with the pump mechanism. 33. The device of claim 25, wherein the activation mechanism is adapted to drive a peeling action in which a temporary seal is removed from the container. 34. The device of claim 33, wherein the peeling action comprises moving a de-sealing tool through a disc member having a plurality of containers. 35. The device of claim 34, wherein the peeling action includes control of presence of a temporary seal before its removal. 36. The device of claim 25, wherein the driving mechanism is adapted to cock stored energy for driving the activation mechanism. 37. The device of claim 25, wherein the driving mechanism is adapted to cock stored energy for driving the activation mechanism directly. 38. The device of claim 25, wherein the driving mechanism is adapted to drive the cocking and activation mechanism at least partly in sequence. 39. The device of claim 38, wherein the activation mechanism is adapted to drive at least two actions at least partially in sequence. 40. The device of claim 25, wherein the activation mechanism is adapted to drive a control step and/or an initiation step for the container or the opening. 41. The device of claim 25, wherein the device further comprises an eyecup with a contact surface arranged for contact with the eye or its facial surroundings. 42. A method for operating an ejection device for ejecting a liquid stream, the stream moving from a proximal position towards a distal position, the device comprising a) a housing, b) a container for the liquid, c) at least one opening arranged for ejection of the stream and being in fluid communi cation with the container, d) a pump mechanism, including a pump driver to store cocked energy for driving the pump mechanism, operable to deliver at least part of the liquid from the container through the outlet to form the stream, and e) at least one activation mechanism operable, separately from the pump mechanism, to initiate the device for the liquid delivery, the method comprising operating a driving mechanism to transform manual or stored energy both i) into cocked energy of the pump driver, and ii) into direct or stored energy for operation of the activation mechanism.