Medicament delivery device comprising a movable guard (10) being movable between a proximal and a distal position and a locking mechanism (15) having a lever (16), the lever (16) restricting movement of an actuation locking member (24) until the movable guard is positioned in a distal position and the lever (16) restricting movement of the guard (10) in a proximal position after actuation of the device.

A medicament delivery device comprises a needle configured to move between a retracted position and an inserted position; an insertion mechanism to move the needle from the retracted position to the inserted position when activated; a locking arm which, in a locked position, is engaged with the insertion mechanism to prevent activation of the insertion mechanism and, in an unlocked position, is disengaged from the insertion mechanism; a retraction mechanism to move the needle from the inserted position to the retracted position when activated; and a trigger configured to move between a disengaged position and an engaged position. On moving from the disengaged position to the engaged position, the trigger is configured to move the locking arm from the locked position to the unlocked position. On moving from the engaged position to the disengaged position, the trigger is configured to activate the retraction mechanism.

An injector includes an injector housing, an activation button assembly translatable from an unactuated position to an actuated position and a cartridge door movably mounted to the injector housing between an open position and a closed position. A deflectable interference member has a resting position configured to limit an insertion depth of a cartridge into an interior channel of the cartridge door to a sealed position, wherein the cartridge piercing needle does not fully penetrate a pierceable septum of the cartridge. Movement of the activation button assembly from the unactuated position to the actuated position thereof, in the closed position of the cartridge door, deflects the interference element out of the resting position thereof, thereby enabling further advancement of the cartridge into the interior channel of the cartridge door to an unsealed position, wherein the cartridge piercing needle fully penetrates the pierceable septum.

The present invention provides a needle unit (10) for use with a pen injection device, wherein the needle unit (10) comprises a needle shield (50) and an axially movable needle hub (25).

The present disclosure relates to a drug delivery device, having a longitudinal axis and comprising a plunger movable along the longitudinal axis and a guide curve adapted to engage at least one part of the plunger so as to guide the plunger when the plunger is being released to move along the longitudinal axis.

An auto-injector includes a chassis and a carrier subassembly. The carrier subassembly includes a carrier arranged inside a case, a drive spring, a plunger comprising a ramp member, the plunger configured to be pushed in a proximal direction by the drive spring, and a ramp attached to the carrier, wherein the ramp member on the plunger in an initial state is locked to the ramp on the carrier to form a ramped engagement to the carrier, the plunger prevented from rotating out of the ramped engagement depending on a relative longitudinal position of the carrier relative to the chassis, wherein the plunger is arranged to be released and to rotate out of the ramped engagement upon the carrier translating a pre-defined distance in a proximal direction relative to the chassis.

A medicament delivery device is presented having a proximal disposable part arranged with a body and a delivery member cover telescopically arranged in relation to the body wherein the proximal disposable part is configured to receive a medicament container. A distal reusable power pack is detachably arranged with the proximal disposable part such that the delivery member cover has an extension position in which the delivery member cover is extended in the proximal direction to cover a medicament delivery member of the medicament container, and a retraction position in which the delivery member cover is retracted in the distal direction to expose said medicament delivery member. The distal reusable power pack can have a power unit, a rotational drive unit and a plunger unit, where the rotational drive unit is powered by the power unit and is configured to move the plunger unit upon being triggered.

A device configured to administer a medication can comprise a lower housing that includes a housing latch. The device can further comprise a needle guard that is movable relative to the lower housing along a first direction from a first position to a second position so as to expose a needle, and an upper housing supported relative to the lower housing. The upper housing can be configured to move with respect to the lower housing along a second direction from a pre-use position to a dispensed position. The housing latch can releasably interfere with the upper housing when the upper housing is in the pre-use position so as to prevent the upper housing from moving toward the dispensed position, and the movement of the needle guard toward the second position, causes the interference to be removed, thereby allowing the upper housing to move toward the second position.

The present disclosure provides an injection pen needle, which includes a needle head, a needle seat, an outer sleeve, a sliding sleeve and a limit ring, wherein the needle head is arranged on the needle seat; the needle seat comprises baffle plates; the outer sleeve is arranged on the needle seat in a sleeving manner; the lower part of the sliding sleeve enters the outer sleeve and is adapted to move up and down in the outer sleeve, and a channel hole, from which the needle head can penetrate out, is formed in the top of the sliding sleeve; the limit ring is arranged in the outer sleeve; the limit ring comprises sliding blocks; the bottom of the sliding sleeve pushes against the limit ring; and when the sliding sleeve moves up and down in the outer sleeve.

An auto-injector for receiving and operating a syringe, the auto-injector comprising: a housing for receiving the syringe. The housing comprise a main body and a door operable between a first and a second position. The syringe is receivable within the housing when the door is in the first position. The auto-injector comprises at least one biaser configured to bias the door from the first position towards the second position, or from the second position towards the first position. The auto-injector comprises a plunger driver being configured, on activation of the auto-injector, to drive a plunger forward within the auto-injector to operate the syringe received within the auto-injector, the plunger driver being further configured to be primed when the door is moved in the direction that the biaser biases the door.