The present disclosure relates to an assisted injection device for injecting a composition contained in a medical container. The injection device includes a body adapted to receive a medical container in a fixed position relative to the body. The injection device includes a spring-loaded piston rod translationally movable inside the body between a proximal rest position allowing inserting of the medical container in the body and a distal operative position wherein the piston rod engages a stopper of the medical container and pushes the stopper in the medical container. The injection device includes a blocking system comprising a locking member mounted on the body and configured to engage the piston rod. The piston rod includes a proximal end extending out of the body and configured to be pushed by the user in a distal direction to accelerate the movement of the piston rod to the distal operative position.

The present disclosure relates to a medication delivery device having a dose detection system and an associated control system configured to determine an amount of medication delivered from the medication delivery device based on the sensing of relative rotation within the medication delivery device. The relative rotation may occur between a dose setting member and an actuator and/or housing of the medication delivery device. The rotation sensing may involve piezoelectric sensing, more specifically repeatedly deforming a piezoelectric sensor with a mechanical force. The dose detection system may be a modular or integral component of the medication delivery device.

A drug delivery device comprising: a housing; a cylindrical member rotatably supported within the housing; and a plurality of sensors; wherein: the outer surface of the cylindrical member is provided with a single track, the track forming an encoder and having a plurality of first track segments and a plurality of second track segments arranged along the length of the track which are respectively capable of inducing first and second responses in the sensors; and in each rotational position of the cylindrical member relative to the housing at least one different first track segment is capable of inducing a first response in at least one said sensor, thereby enabling the rotational position of the cylindrical member relative to the housing to be determined.

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 force actuated injection device including a body adapted to contain medication, a grip slidably disposed over the body, a lock disposed between the body and the grip, the lock when locked preventing movement of the grip relative to the body and when unlocked permitting movement of the grip relative to the body, a needle guard retractable relative to the body, a biasing member biasing the needle guard away from the body, and a resistance band disposed between the body and the needle guard adapted to resist initial needle guard retraction relative to the body, wherein force on the needle guard exceeding a predetermined amount overcomes a frictional force of the resistance band allowing the needle guard to retract relative to the body to unlock the grip relative to the body such that movement of the grip relative to the body causes medication to be delivered from the body.

Provided is an injection device for injecting a substance, comprising a case receiving a barrel containing the substance to be injected and comprising a stopper movable inside the barrel, a plunger unit comprising a triggering portion, the plunger unit being coupled to the stopper and movable with regard to the case from an initial, proximal position to a final, distal position to inject the substance when the barrel is provided into the case, an end-of-dose indicator movable from a hidden position to a visible position in which at least one portion of the end-of-dose indicator is visible to a user, hiding means for locking the end-of-dose indicator in the hidden position and configured to be unlocked by the triggering portion of the plunger unit when the plunger unit reaches an indicator position.

Provided are ergoline derivative containing medicaments disposed within a preassembled, prefilled, single-use delivery device, methods for administering a medicament using a preassembled, prefilled, single-use delivery device, and systems or kits that contain one or more preassembled, prefilled, single-use devices and user instructions, such as for treatment of a migraine or other headache.

Provided is an injection device, comprising a syringe comprising a needle, a barrel, a stopper in sliding engagement inside the barrel, a plunger unit moveable with regard to the barrel, a case accommodating the barrel and provided with elastic means and an operating stop, and a needle shield adapted to be moveable under the force of the elastic means from an injection position to a safety position, and provided with a shield stop, wherein the operating stop is configured to prevent the needle shield to move to the safety position by abutting against the shield stop, wherein the plunger unit comprises a triggering portion configured to deflect the flexible leg of the needle shield when the plunger unit has reached a triggering position during its injection movement.

A device for administering a fluid can include a cylinder, a piston connected to a piston rod, and a tensioning device connected to the piston rod. The tensioning device includes a ramp which is rotatable via a motor, a ramp track, and a roller which is in contact with the ramp track and which is mounted rotatably in a driver. The driver can be connected to the piston rod via a joint. In a tensioning procedure, the ramp track is rotated such that the roller runs on the region of inclination as far as the second plateau and the piston is thereby moved to its rear end position. In a dispensing procedure, the ramp track is rotated until the roller runs over a transfer region and, on account of the tensioning, is accelerated toward the first plateau and, as a result, the piston is moved toward the an dispensing end.

Devices and methods for use with syringes are disclosed. A plunger rod includes an outer housing having proximal and distal ends and a lumen between the ends, as well as an inner body axially slidable within the lumen between a first and second position. The inner body has a retention member extending therefrom. When the inner body is in the first position, the plunger rod has a first length, and, when the inner body is in the second position, the plunger rod has a second length greater than the first length. When the inner body is in the second position, the inner body is configured to be rotated relative to the outer housing until the retention member is received within the outer housing to preclude the inner body from moving in the axial direction.