Liquid delivery device and method for operating an ejecting device

摘要

A device and method for ejecting a liquid stream towards an eye, the stream moving from a proximal position towards a distal position, the device comprising a housing110, a container for the liquid, at least one opening arranged for ejection of the stream, a pump mechanism 150 including a pump driver able to store cocked energy for driving the pump mechanism to deliver at least part of the liquid from the container through the outlet to form the stream and at least one activation mechanism operable, separately from the pump mechanism, to initiate the device for the liquid delivery. A driving mechanism is also provided to transform manual or stored energy both into cocked energy of the pump driver and into direct, or stored, energy for the operation of the activation mechanism. The cocked energy may be stored in a mechanical spring 156 and the stored energy may be electrical energy stored in a battery.