A medicament filling system (30) provides medicament to a delivery device (20). The medicament filling system (30) comprises a main housing (40) having an air pump (42), a vial adapter (44) that is configured to engage a vial (10) containing medicament, the vial adapter (44) being in communication with the air pump (42), a syringe housing (46) that carries a syringe (70), the syringe housing (46) being in selective communication with the vial adapter (44) and the delivery device (20), and a valve (60) that locks and unlocks movement of a plunger (72) in the syringe (70).

Disclosed are systems and methods of detecting an impulse of energy given off by an injection device and determining a dosage of medicine based on the impulse. In one example, a module detects the vibrations given off by dialing a click-wheel on an autoinjector and determining the selected dosage of medicine based on the dialed dosage.

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.

A drug solution administration device includes a drug solution reservoir, a drive unit, a rotation detection unit, and a control unit. The control unit counts the number of rotations of the drive unit from when a rotation sensor value reaches a blockage start threshold value until the rotation sensor value reaches a blockage detection threshold value. Further, the control unit determines that a blockage of a flow path has occurred when the rotation sensor value reaches the blockage detection threshold value, and rotates the drive unit in a direction opposite to a direction in which the drug solution is administered based on the counted number of rotations.

A needle-free injector, and method of using said injector, for injecting variable, discrete doses of liquids intradermally or transdermally into a subject in need thereof, are provided. The injector comprises a barrel having a front section, an intermediate section and a rear section; and a cap having a rear end connectable to the front section of the barrel and rotatable about the front section of the barrel, the cap having a discharge end for receiving a cartridge containing the liquid to be injected, wherein rotation of the cap about a longitudinal axis of the front section of the barrel adjusts the dose of liquid to be discharged from the cartridge by the injector in iscrete dose units. A piston cap is also provided for adjusting the force of the impact of an injector piston on a plunger on the cartridge.

A syringe assembly (2) that locks a syringe (10) to prevent backflow of medicament, the syringe assembly (2) comprising a syringe (10) including a barrel (12) configured to carry the medicament, a plunger (14) that communicates with the barrel (12), and a plunger head (16) disposed on a proximal end of the plunger (14), and a locking assembly (50) disposed around the barrel (12), wherein the locking assembly (50) prevents the plunger (14) from moving away from the barrel (12) to draw the medicament into the barrel (12).

The disclosure relates to a drug delivery device for expelling a pre-determined or pre-settable amount of a liquid medicament formulation which improves the stalling behavior and indicates the stalling state to the user. The device comprises: a medicament reservoir attached to a housing and an expelling mechanism configured for acting against the medicament reservoir in order to expel a portion of the liquid medicament formulation therefrom, the expelling mechanism comprising an arrangement of a threaded nut in a fixed axial relation to the housing and a lead screw in threaded engagement with the threaded nut, the threaded nut and the lead screw being rotatable relative to each other by a rotational input interface, a mechanical energy reservoir (for storing energy, the stored energy being releasable from the energy reservoir by a rotational interface, a drive train having upstream and downstream interfaces; and a trigger movable relative to the housing.

An electronic system for a drug delivery device is provided. The electronic system comprises a dose setting and drive mechanism comprising a first member and a second member, wherein in the dose delivery operation and/or in the dose setting operation, the first member moves, e.g. rotates, relative to the second member; an electronic control unit; an electrical use detection unit operatively connected to the electronic control unit, and configured to generate a use signal in response to the relative movement, e.g. a relative rotational movement, between the first member and the second member, preferably during the dose delivery operation. The electronic system is configured such that it is switched from a first state into a second state by the electronic control unit in response to the use signal, wherein the electronic system has an increased electrical power consumption in the second state as compared to the first state.

A clutch assembly with a blocking system for a medical injection device, in which a first ratchet sleeve (3) is mounted on the clutch sleeve (2), the first ratchet sleeve (3) being rotatable in two directions and cooperating with a second ratchet sleeve (4) which is mounted on the first ratchet sleeve (3), the second ratchet sleeve (4) being rotatable only in one direction, the housing (1) has an internal toothed ring (1.1), the first ratchet sleeve (3) has at least one ratchet (3.1), and the second ratchet sleeve (4) has an internal toothed ring (4.1) and at least one ratchet (4.2). The second ratchet sleeve (4) and the housing (1) have blocking means (4.3, 1.2) for preventing the arming of the device when an insufficient volume of the medicament remains in the container, by blocking the rotation of the second ratchet sleeve (4) in relation to the housing (1).

A medicament delivery device is presented having an elongated body having a longitudinal axis, a proximal end and a distal end that is provided with a distal surface. The distal surface is arranged and configured such that the elongated body of the medicament delivery device can steadily stand on the distal surface.