An auto-injector for administering a dose of a liquid medicament (M) is presented having an elongate case, a carrier subassembly comprising a tubular carrier slidably arranged inside the case, where the carrier adapted to contain a syringe with a hollow injection needle. The injector also has, a drive spring and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier. A control spring is arranged around the carrier for translating the carrier in a proximal direction (P) for advancing the needle beyond a proximal end of the auto-injector, and a trigger button is used for releasing the control spring on actuation.

A drug delivery device includes a container for storing a drug, the container having a stopper for expelling the drug; an injection drive comprising an energy source for directly or indirectly acting on the stopper to expel the drug; a sensor for detecting contact between the drug delivery device and a body of a patient; and a user interface (UI) for activating or causing the activation of the injection drive. The device is operative for drawing attention to the UI, if the sensor detects contact between the drug delivery device and the body of the patient, to thereby indicate that the injection drive is ready to be activated, which activation is the next step in the drug administration process.

Described is an autoinjector comprising a front case having a first rib and a second rib, and a rear case telescopically coupled to the front case and having latch arms adapted to engage the first rib and the second rib. When the front case is in a first position relative to rear case, the latch arms are engaged to the first rib. When the latch arms disengage the first rib, the front case translates to a second position relative to the rear case, an axial distance between the front case and the rear case increases relative to the first position, the latch arms engage the second rib.

A medicament delivery system is described. Embodiments of the medicament delivery system can include a smart user device and a medicament delivery assembly. The medicament delivery assembly can be implemented as a single-use cartridge that can be removably coupled to the smart user device. The smart user device can be configured to determine when to automatically administer a medicament stored in the medicament delivery assembly.

An autoinjector device is provided. The autoinjector device can include an activator unit including an activation housing, an activation guard, and an activation shell such that a portion of the activation guard extends beyond a proximal end of the activation shell. The autoinjector device can include camouflage on a proximal surface to obscure a device lock hole and reduce user confusion around needle orientation.

An exemplary embodiment of an injector includes a trigger mechanism, an energy source, and a user-operable firing-initiation member. The trigger mechanism can include a floating trigger member having a retaining portion, a ram assembly having a ram configured to pressurize a medicament container for expelling a medicament therefrom, the ram assembly further having a floating trigger engagement member configured to engage the retaining portion of the floating trigger member when the floating trigger member is in a pre-firing condition. The energy source can be associated with the ram for powering the ram to expel the medicament, and the user-operable firing-initiation member can be operable for causing an axial rotation of the floating trigger member from the pre-firing condition to a firing condition in which the floating trigger engagement member is released from the retaining portion to allow the energy source to fire the ram.

Disclosed is an injection gadget corresponding to an end-effector such as a rescue robot or the like. The injection gadget is configured such that an injection needle is disposed inside an injection assembly, an injection liquid is provided between a cylinder and a piston of the injection assembly, and the piston is moved by an elastic force of a spring previously compressed inside the cylinder so that the injection needle protrudes to the outside of the injection assembly and the injection liquid is ejected, and includes a bracket that replaceably mounts the injection assembly, a main body that is connected to the bracket and includes a first body space portion of which one side surface facing the bracket and the other side surface are open to pass through each other and a second body space portion that is disposed next to the first body space portion, a controller that is mounted in the second body space portion, a linear actuator that moves a transfer shaft in accordance with a control signal of the controller, and a pusher that is disposed between the linear actuator and the injection assembly, and transmits a force of the linear actuator toward the injection assembly so that a locking pin of the bracket is deviated from locking guides of the piston of the injection assembly.

An injection apparatus can include a hand-held unit having a head portion and a body portion. The head portion can include a base member, a needle fluidly coupled to the base member, a movable portion disposed over the needle and being axially movable relative to the base member between an extended position and a retracted position in which a distal point of the needle is exposed, a safety cover removably coupled to the base member, the safety cover comprising one or more extension members, and an adjustment member removably coupled to the movable portion and configured to adjust a penetration depth of the needle by increasing or decreasing a distance between the movable portion and the base member.

Auto-injector for administering a dose of a liquid medicament includes a housing to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice to apply against an injection site. A spring means, upon activation, can push the needle from inside the housing through the orifice and past the proximal end, operate the syringe to supply the dose of medicament, and retract the syringe with the needle after delivering the medicament. An activating means can lock the spring means in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring means for injection.

An injector device includes an injector body that receives a syringe; and an injection assembly being configured to dispense medicament from the syringe in a dispensation step. Certain types of injector devices include a sudden completion indicator that indicates when the injection is completed. Certain types of injector devices are configured to dispense two different medicament formulations having different viscosities from syringes without making any changes to the injector devices other than to switch out the syringes. Certain types of injector devices include safety arrangements that inhibit firing of the injector device until front and rear housing assemblies are disposed in predetermined rotational and axial positions relative to each other.