A device (1) for dispensing a substance to a patient comprising a cylindrical first container (2) containing the substance and a second container (3) containing a liquid. The device further comprises an injection device (4) and transfer mechanism (5) for transferring the liquid from the second container (3) to the first container (2) and from the first container (2) to the injection device (4). The first container (2) has a connection element (7) and a plunger (9) that can be moved between the first (6) and second ends (8). By moving the plunger (9) towards the first end (6), liquid contained therein can be dispensed via the injection device (4). The injection device (4) comprises a piercing cannula (15) and an indwelling cannula (16). In an initial position, a distal end region of the piercing cannula (15) extends coaxially in the interior of the indwelling cannula (16).

A medicament delivery device is presented having a housing configured to accommodate a medicament container, a power pack arranged to exert a force on the medicament container to expel medicament, where the power pack has a plunger rod, a drive spring, an actuator configured to releasably hold the plunger rod with the drive spring in an energized state, an actuator sleeve configured to interact with the holding elements, where the actuator sleeve moves in a longitudinal direction in relation to the actuator. The delivery device also has a medicament delivery member guard movable in the longitudinal direction and connected to the actuator sleeve, an activator arranged at a distal end of the housing and operably connected to the actuator to release the plunger rod. A locking arrangement that releasably locks the actuator to the actuator sleeve is also present.

An apparatus includes a housing, a medicament container and a movable member. The medicament container is movable within the housing between a first position and a second position in response to a force produced by an energy storage member. A proximal end portion of the medicament container includes a flange and has a plunger disposed therein. A first shoulder of the movable member exerts the force on the flange to move the medicament container from the first position to the second position. A portion of the first shoulder deforms when the medicament container is in the second position such that at least a portion of the force is exerted upon the plunger. A second shoulder of the movable member exerts a retraction force on the flange to move the medicament container from the second position towards the first position.

An autoinjector includes: an insertion spring between a housing and plunger assembly; a syringe driver; a second release mechanism releasing the plunger assembly from the housing, causing the insertion spring to move the plunger assembly through the housing with a syringe driver; a stop limiting movement of the syringe driver in the housing; and a third release mechanism releasing the plunger assembly from the syringe driver upon engagement with the stop, allowing the plunger assembly to continue through the housing. The first release mechanism releases the plunger from the delivery spring housing upon contact between the plunger assembly and a bung, causing the delivery spring to separate the delivery spring housing and the plunger, applying a delivery force to a bung. A latch mechanism latches the delivery spring housing at a forward position, preventing rearward movement of the delivery spring housing following release of the plunger.

An injection device (110) comprises a housing (112) having a syringe (114) with a discharge nozzle (118). The syringe is movable between a retracted position in which the discharge nozzle is contained within the housing and an extended position in which the discharge nozzle extends from the housing. There is syringe cap (180) for enclosing the discharge nozzle. The syringe cap is removable from the syringe by rotation to the syringes. A syringe carrier (150) in the housing is adapted to restrain rotation of the syringe relative to the housing as the cap is removed.

The present invention relates to an apparatus for patient-controlled drug injection having a counter capable of counting the number of administrations. According to one aspect of the present invention, disclosed is an apparatus for patient-controlled drug injection having a counter, comprising: a case; a pressing part, provided in the case, for applying pressure to pump a chemical liquid; and a counter, provided in the case and having a counting button that is pressed by pressure when a user presses the pressing part, for counting the number of times that the pressing part is pressed.

A medicament delivery device (100) for a delivery of a medicament from a container (12) through a cannula (16). The device comprises a chassis (300), a carriage (200), and an insertion spring (70) for biasing the carriage (200) for movement in an insertion direction with respect to the chassis (300) from a starting position in which the cannula (16) is shrouded to an insertion position in which the cannula (16) is extended. A drive mechanism (400) is provided for driving a stopper (22) of the container (12) to expel the medicament. The drive mechanism (400) is carriage by the carriage (200) and comprises a movable drive member (404), a drive means (40) for applying a driving force to the drive member (404), and a force transmission means (406) for transmitting the driving force to the stopper (22). The drive means (40) is arranged around or alongside at least part of the force transmission means (406).

An injection device has a plunger for displacing a stopper in a syringe or carpule, a holder for the plunger, a drive for the axial displacement of the holder of the plunger, and a control device functionally assigned to the drive. The plunger, or at least a subcomponent thereof, relative to the holder, the holder is able to move over a limited distance relative to the plunger or a subcomponent thereof, opposing a pretensioning force, in that a sensor device is included which detects the relative position of the plunger, or at least a subcomponent thereof, relative to the holder, which comprises at least one sensor element which works together with the control device. The control device is designed such that, upon activation of the sensor element, the speed of advancement of the holder of the plunger is at least reduced.

Methods and apparatus for the reproducible, consistent and efficacious delivery of a therapeutic agent to a subject. The present disclosure comprises apparatus for the controlled administration of the therapeutic agent through an orifice to the subject, a plurality of penetrating electrodes arranged with a predetermined spatial relationship relative to the orifice, and an electrical signal generator operatively connected to the electrodes.

An injection device comprises a casing, a syringe carrier located within a proximal end of the casing and being movable along a longitudinal axis of the device between a stowed position and a needle insertion position, and a drive assembly located within a distal end of the casing and being movable by an insertion driver in order to move the syringe carrier and a loaded syringe from a stowed position to a needle insertion position. The device further comprises a first formation fixed relative to the casing and a second formation fixed relative to an insertion tube of the drive assembly, the first and second formations defining between them a plurality of stop positions for the insertion tube relative to the casing, spaced along the direction of said longitudinal axis, to prevent significant rearward movement of the insertion tube along said axis when a plunger of a firing cartridge is released from a reaction assembly of the cartridge.