A cassette for use in an auto injector for administering a medicament, the cassette comprises a syringe compartment containing the medicament; a hollow needle in fluid connection with the syringe compartment; a rigid needle shield connected to the syringe compartment and covering the hollow needle; a stopper movable inside the syringe compartment; a syringe holder extending around at least part of the syringe compartment; a rigid needle shield holder having a first part positioned between the rigid needle shield and the proximal end of the syringe compartment, and a cassette skin sensor. Also disclosed is the auto injector.

An auto injector for delivery of administering a medicament comprising: a housing; an electrical motor adapted to move a piston between proximal and distal positions in a longitudinal direction of the auto injector; a syringe holder extending from a proximal to a distal end and configured to receive a syringe, a first spring adapted for moving the syringe holder with the syringe proximally for insertion of the needle; wherein the electrical motor is the only motor in the auto injector.

Provided is a cassette unit suitable for use with an auto-injector having a drive unit. The cassette unit comprises a cassette unit housing defining a cassette unit housing cavity arranged for receipt of a syringe; a needle projection aperture; a needle cover defining a needle sheath for sheathing of a needle tip of the syringe; a removable cap that in a capping position fits over and thereby, acts such as to close off, the needle projection aperture, the removable cap defining a cap interior; provided to the removable cap, a cap insert; and provided to the cap insert, a connector defining one or more needle cover gripping elements for gripping the needle cover and the connector defines a central hub and the one or more needle gripper elements attach to the central hub and in spaced arrangement relative to each other. The connector locates within the removable cap such that the central hub of the connector is in spaced relationship with a forward end wall or surface of the cap interior and the needle cover gripping elements project away from the forward end cap wall or surface of the cap interior and towards the open end of the cap, and wherein the cap insert is shaped to allow for limited axial travel of the connector there within.

An apparatus for transdermal injection includes a collet configured to transition between first and second states. In the first state, the collet receives a cartridge with a predetermined elongate shape. In the second state, an inner surface of the collet substantially conforms to the predetermined elongate shape of the cartridge such that expansion of the cartridge, when the cartridge is pressurized, is substantially uniformly opposed.

An assembly for a drug delivery device (1) is proposed, comprising a housing (13) having a proximal end and a distal end, a dose member (23) which is displaceable in the proximal direction with respect to the housing for setting of a dose of a drug, a clutch member (28) which is displaced in the proximal direction with respect to the housing when setting the dose, and a stop member (30) configured to define a clutch stop position for the proximal displacement of the clutch member with respect to the housing, with the clutch member, when in the clutch stop position, being prevented from further displacement in the proximal direction with respect to the housing,

wherein the clutch member and the dose member are configured to mechanically cooperate with one another when the clutch member is in the clutch stop position, thereby preventing further displacement of the dose member in the proximal direction with respect to the housing during setting of the dose. Furthermore, a drug delivery device (1) is proposed.

Telescopic drive assembly comprising a rotatable threaded drive member, an outer tube assembly arranged axially moveable relative to the drive member but non-rotational relative to a frame and comprising a nut portion in threaded engagement with the drive member, a transmitter tube with an outer thread, and a drive tube in threaded engagement with the transmitter tube outer thread. The outer tube assembly comprises a tube guide member coupled to the nut portion via an Oldham coupling.

A drug delivery device comprising drug expelling means for expelling an amount of drug, a number of user-oriented structures, and individual visual communication means arranged in the vicinity of at least two user-oriented structures. The device further comprises control means adapted to detect an error condition associated with each of the at least two structures, and actuate the visual communication means associated with a structure for which an error condition has been detected.

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.

Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes a cartridge including a piston slidably disposed within an interior for delivering medicament within the interior through an outlet, and a driver including a plunger coupled to the piston, a source of pressurized fluid, and an actuator member for opening a flow path at least partially between the source and the plunger to advance the plunger and piston to deliver medicament from the interior. One or more sensors are operatively coupled to the plunger to measure displacement of the plunger, a processor is coupled to the sensor(s) for analyzing sensor signals to measure volume of medicament delivered from the interior, and an output device, e.g., one or more LEDs or speakers, provide outputs related to the volume of medicament delivered.

Drug delivery device comprising expelling means allowing a user to set a dose corresponding to a number of increments from an initial state, an indication member adapted to rotate in a first direction corresponding to the set dose, and rotate in an opposed second direction corresponding to an expelled dose, the indication member having an initial rotational position corresponding to both the initial state and the fully expelled dose state. Sensor means having an incremental counter synchronized with the rotational position of the indication member and having a reference point corresponding to the initial rotational position of the indication member. After detecting an error state the sensor means is adapted to re-synchronize by detecting the number of rotational increments for a set dose and for a subsequent expelled dose. If the numbers are identical the reference point is reset corresponding to the current rotational position of the indication member.