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.

Disclosed herein is an auto injector for administering a medicament, the auto injector comprising: a housing; a cartridge receiver configured to receive a cartridge comprising a first stopper and a cartridge compartment containing the medicament, the cartridge compartment having a first cartridge subcompartment containing a first medicament component of the medicament and a second cartridge subcompartment containing a second medicament component of the medicament; a drive module coupled to move a plunger rod between a retracted plunger rod position and an extended plunger rod position, the plunger rod being configured to move the first stopper; a processing unit coupled to the drive module, wherein the processing unit is configured to control the drive module to move the plunger rod from a first plunger rod position to a mix plunger rod position with a mix plunger rod speed, wherein the mix plunger rod position is selected to position the first stopper in a position wherein the first medicament component is mixed with the second medicament component, and to provide an onset signal after a number of completed inversions of the auto injector has been performed.

Device for dispensing a substance having: a dispensing element through which the substance can be dispensed, a displaceable protective element for the dispensing element, a drive element that is coupled with the protective element and a feedback element which can generate a signal when or after a predefined quantity or the entire quantity of the substance to be dispensed has been dispensed characterized in that the feedback device is coupled with the drive element.

An auto-injector for administering a dose of a liquid medicament includes an elongate tubular case and a carrier subassembly including a tubular carrier slidably arranged inside the case. The carrier is adapted to contain a syringe with a hollow injection needle, 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, wherein the drive spring acts between the carrier and the plunger, wherein the plunger, in an initial state, is locked to the carrier by a ramped engagement to the carrier and by being prevented from rotating out of this ramped engagement, depending on a relative longitudinal position of the carrier in the case, and wherein the plunger is arranged to be released for rotating out of the ramped engagement.

A support structure for a medicament container is disclosed that is arranged to accommodate an elongated plunger rod, where the support structure has at least one flexible element arranged to be moved in contact with, and to exert a force, on a distal end surface of the medicament container, wherein the at least one flexible element is provided with a contact member arranged to contact an outer surface of the plunger rod and to be moved out of contact with the plunger rod when moved in contact with the medicament container.

A jet injector that includes a prefilled syringe. The syringe includes a fluid chamber that contains a medicament. The syringe also has an injection-assisting needle, and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. The housing includes a retractable guard and an interference component, e.g., a lock ring, adjacent to the retractable guard that interferes with the movement of the retractable guard. An energy source is configured for biasing the plunger to produce an injecting pressure to jet inject the medicament from the fluid chamber through the needle to an injection site.

The present disclosure relates to drug administration. In an exemplary embodiment, a system can include a drug administration device configured to dispense a drug to a patient, a monitoring device configured to log a delivery event of drug delivery from the drug administration device into the patient, and a sensor configured to sense a patient parameter following delivery of the drug into the patient. In another exemplary embodiment, a drug administration device can include a drug holder configured to hold a drug, a dispensing mechanism configured to dispense the drug, and a sensor configured to sense a patient parameter, and the drug administration device can be configured to locally activate the drug at a target location in the patient. In another exemplary embodiment, methods, devices, and systems are provided to assess when operation of a drug dispensing mechanism is complete and to confirm whether drug administration was successful.

An injector for injecting a medicament in a patient. The injector includes a container comprising a fluid chamber containing a first volume of a medicament, and an injection conduit associated with the fluid chamber for defining a fluid pathway therefrom to inject the medicament from the fluid chamber through the injection conduit to an injection location. The injector also includes a firing mechanism associated with the fluid chamber for expelling the medicament from the fluid chamber through the injection conduit, and a volume-control mechanism operable to control a fraction of the first volume of medicament that is injected when the firing mechanism is actuated to inject the medicament.

An autoinjector includes a housing and a drive chassis arranged linearly moveable within the housing. The drive chassis includes a dispensing limb and a trigger limb. The trigger limb and the dispensing limb are arranged in parallel to one another and are connected to one another at a respective distal end of the dispensing limb and the trigger limb.