Liquid delivery device and method for operating an ejecting device towards an eye

摘要

Here is disclosed 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 housing, a container for the liquid, at least one opening arranged for ejection of the stream and being in fluid communication with the container, a pump mechanism operable to deliver at least part of the liquid from the container through the opening to form the stream and an eyecup with a contact surface arranged for contact with the eye or its facial surroundings, characterized in the improvement comprising that the eyecup is arranged movable with respect to the opening or housing between at least two positions, an active position with the eyecup contact surface at a defined safety distance to the opening and a rest position with the eye-cup contact surface at a position more proximal than in the active position and that a sensor is arranged to allow discrimination between the positions.