A syringe with an injection dose adjustment function, the syringe comprising a medicine vial connecting apparatus and an adjustable propulsion apparatus; by means of assembling the medicine vial connecting apparatus and a medicine vial, and then installing the adjustable propulsion apparatus in the medicine vial connecting apparatus and extending the adjustable propulsion apparatus into the medicine vial, a rotating knob of the medicine vial connecting apparatus can drive a push rod of the adjustable propulsion apparatus to move backward to a predetermined scale; at a time of injection, pressing the push rod enables the medicine vial to output a predetermined dosage of medicinal liquid, such that the syringe can adjust the dosage of the injection according to requirements of different injection subjects.

Disclosed is an auto injector for administering a medicament. The auto injector comprising: a housing; a cartridge receiver configured to receive a cartridge assembly comprising a cartridge and a cartridge code feature, the cartridge containing the medicament; a code sensor configured to read the cartridge code feature; a drive module coupled to move a plunger rod; and a processing unit coupled to the code sensor and the drive module. The processing unit being configured to: receive from the code sensor a code signal indicative of the cartridge code feature; control the drive module to move the plunger rod to a first plunger rod position, the first plunger rod position being based on the code signal; receive a trigger event; control the drive module to move the plunger rod to a second plunger rod position following reception of the trigger event.

An auto injector is disclosed comprising: a housing, a cartridge receiver, and an ejector member. The cartridge receiver is configured to receive a cartridge containing the medicament. The auto injector further comprises a blocking member coupled to an ejector member. The blocking member is configured to move between a blocking position wherein a connector opening is blocked and a non-blocking position wherein the connector opening is not blocked.

A drug delivery device comprises a housing (201) and an expelling assembly with a piston rod (220), a drive tube (260) with an outer surface and a scale drum (270) arranged between the drive tube and the housing, the scale drum being coupled to the housing and the drive tube outer surface. The device further comprises a drive spring (255) arranged between the housing and the drive tube, and setting means (280) allowing a user to simultaneously set a dose amount to be expelled and strain the drive spring correspondingly by rotation of the drive tube. The scale drum is coupled to the drive tube via a spline connection, wherein the drive spring is arranged proximally of the spline connection when the spline connection is in its proximal-most position.

An auto injector is disclosed comprising: a housing, a cartridge receiver, and an ejector member. The cartridge receiver is configured to receive a cartridge containing the medicament. The auto injector further comprises a blocking member coupled to an ejector member. The blocking member is configured to move between a blocking position wherein a connector opening is blocked and a non-blocking position wherein the connector opening is not blocked.

The invention also relates to an improved auto injector adapted for receiving a cassette with medicament and for administering the medicament in the cassette to a patient, the auto injector extending from a proximal end to a distal end along a longitudinal axis, wherein the cassette is removable received in the auto injector along the longitudinal direction.

An auto injector is disclosed comprising: a housing, a cartridge receiver, and an ejector member. The cartridge receiver is configured to receive a cartridge containing the medicament. The auto injector further comprises a blocking member coupled to an ejector member. The blocking member is configured to move between a blocking position wherein a connector opening is blocked and a non-blocking position wherein the connector opening is not blocked.

An add-on device adapted to be releasably mounted on a drug delivery device, the add-on device comprising an outer assembly with an add-on dose setting member adapted to be coupled to the outer housing of a pen housing, as well as an inner sensor assembly engaging the pen dose setting member and being in rotational engagement with the add-on dose setting member during dose setting. The invention addresses the issue of providing a stable inner platform for the sensor means, which in accordance with the invention is realized by actuating a clutch between the pen housing and the pen dose setting member during dose sensing, this preventing to a high degree that the inner sensor assembly rotates relative to the drug delivery housing during actuation of the drug expelling means.

An auto injector for delivery of a medicament is disclosed. The auto injector comprises a housing, a syringe holder configured to receive a syringe; a first drive module adapted to move the syringe holder relatively to the housing; and a rigid needle shield remover comprising a first part adapted for separating a rigid needle shield from the syringe.

The present disclosure relates to a drug delivery device for dispensing of a liquid medicament, the device comprising: a housing to accommodate a cartridge filled with the medicament and having a piston slidably displaced inside the cartridge along an axial direction and sealing a proximal end of the cartridge, a drive mechanism having a piston rod extending along the axial direction and being at least displaceable from a proximal end position in distal direction to displace the piston in distal direction, at least one distal support facing in proximal direction to axially abut a distally facing support face of the cartridge, wherein an axial distance between the distal support and a distal end of the piston rod when in the proximal end position is smaller than an effective length of the cartridge, which effective length is determined as the axial distance between a proximal face of the piston and the distally facing support face.