Patent ID: 9011386
Filing Date: 2015-04-21
Classification: A61M

Abstract:
1. A device for delivering predetermined doses of liquid medicament, which device is adapted to be in a medicament delivery state and in a medicament non-delivery state, comprising: a cartridge adapted to contain the liquid medicament and a piston sealingly and slidably arranged in the cartridge; an energy accumulating member; an elongated screw threaded plunger rod adapted to be arranged in an interior of the device, wherein a proximal end of the plunger rod is adapted to be in contact with the piston, such that, when a first force from the energy accumulating member is applied to the plunger rod when the device is in the medicament delivery state, the plunger rod and the piston move toward a proximal end of the cartridge with a predetermined distance and expel a predetermined dose of the liquid medicament from the cartridge; at least one additional rod that extends along a longitudinal axis of the device and that is in contact with the plunger rod, wherein a distal end of the at least one additional rod extends beyond a distal end of the device, and the at least one additional rod is adapted, upon activation, to be moved by a second force in the proximal direction of the device.