Automated delivery device and method for its operation

A delivery device including:

• a) a housing,
• b) a container for a fluid arranged in the housing, the container having an opening,
• c) a delivery conduit connected in fluid communication with the opening, the conduit having a front end in flow respect distal from the container and a rear end in flow respect proximal to the container, the front end and the rear end defining an axis therebetween and a forward direction and a rearward direction,
• d) a pump arranged to deliver fluid at least in a direction from the container through the conduit,
• e) a needle arranged at the conduit front end,
• f) a needle cover arranged over at least an axial extension of the needle and being displaceable along a path substantially axial in relation to the needle,
• g) a sensor able to change state in at least one respect in response to the presence of the needle cover in a predetermined position along said path, and
• h) a converter, separate from or integral with the sensor, converting at least one of the sensor states into an electromagnetic signal.

A delivery device including:

• a) a housing,
• b) a container for a fluid arranged in the housing, the container having an opening,
• c) a delivery conduit connected in fluid communication with the opening, the conduit having a front end in flow respect distal from the container and a rear end in flow respect proximal to the container, the front end and the rear end defining an axis therebetween and a forward direction and a rearward direction,
• d) a pump arranged to deliver fluid at least in a direction from the container through the conduit,
• e) a sensor able to change state in at least one respect in response to a predetermined proximity of an object to the sensor in a sensing direction having at least one component parallel with the forward direction, wherein the sensor is positioned with the predetermined proximity in given relationship to the conduit front end and comprises a movable part extending at least a distance between the conduit front end and the predetermined proximity position, wherein sensor change of state takes place at a rearwardly displaced position for the movable part, and wherein the movable part comprises a cover over at least a part of the conduit,
• f) a converter, separate from or integral with the sensor, converting at least one of the sensor states into an electromagnetic signal, and
• g) a processor, receiving the electromagnetic signal and delivering a control signal to an operational component of the device.