A drug delivery device includes a housing defining a shell having a proximal and a distal end, a needle assembly at least partially disposed within the housing at the proximal end, a drive assembly at least partially disposed within the housing, and a damper mechanism at least partially disposed within the housing adjacent to the distal end. The housing further defines a longitudinal axis extending between the proximal end and the distal end. The needle assembly includes a syringe barrel containing a medicament and a needle or a cannula. The drive assembly is operably coupled to the needle assembly to urge the medicament through the needle or cannula. The damper mechanism is operably coupled to the drive assembly and the housing. Upon activating the drive assembly, the damper mechanism dampens an effect thereof.

An auto-injector for receiving and operating a syringe to facilitate injection of medicament into a subject, the auto-injector comprises an openable lid to allow insertion and removal of the syringe, a lid latch operable to latch the lid in a closed position, and a needle safety shroud moveable between a first retracted position and a second extended position. The auto-injector is configured such that, when the safety shroud is in the first position, the lid latch cannot be released preventing the lid from being opened and, when the safety shroud is in the second position, the lid latch can be released allowing the lid to be opened.

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.

An autoinjector includes a body (1; 1010), a reservoir containing fluid product, a piston, a needle, a piston rod (5 5; 1005) that is displaceable between a loaded position and an injection position, and an injection spring (8; 1008) to stress 10 the piston rod towards the injection position. The autoinjector also includes an injection lock having a control sleeve (4; 1004) containing the piston rod and the injection spring. The piston rod includes a radial recess (50; 1050) receiving a substantially spherical blocking element (7; 1007) mobile between a blocking position and an unblocking position, stressed radially towards the exterior by the piston rod, and held in the blocking position by a blocking member (23; 1004) that is displaceable relative to the piston rod to release the blocking element.

An active agent or drug injecting device (10) includes a main housing (16) containing a trigger mechanism (24) which can be manually activated via release bar (32) or remotely triggered via wireless receiver (70) activating motor (74), and a second housing (80) containing an injection- and needle-assembly (22). The needle (30) encloses a dry carrier (26) having an active agent (12) disposed thereon. The trigger mechanism triggers the injection assembly to propel the needle into the skin (via spring (54)), to inject the active agent into a living organism (either by letting the active agent diffuse out of the needle or by actively flushing it out), and to subsequently retract the needle back into the housing (80) (via spring (64)).

A container for delivering a medicament to a target location includes a housing having a proximal end and a distal end, the housing including a cap locking tab at the distal end, and a vial containing the medicament. The container includes a plunger slidable within the vial from a proximal end to a distal end of the vial to dispel the medicament, an injection member associated with the distal end of the vial, such that the medicament dispelled from the vial passes through the injection member to the target location, and a slidable interaction member associated with the distal end of the vial configured to slide with the vial. An interaction between the slidable interaction member and the cap locking tab causes the cap locking tab to bias outward, and placement of a safety cap on the container after use locks the safety cap onto the container via an interaction with the cap locking tab. The container may further include a resistance feature to control movement of a plunger rod relative to the vial.

There is provided an injection device for delivering a medicament from a container. The device includes, a housing for housing a container, a plunger substantially housed within the housing and which is movable within the housing, a force applicator for applying a force to the plunger, a trigger coupled to the force applicator for releasing the force applicator to fire the device, a boot, a dose selector for allowing a user to select a dose of medicament, and a first mechanical interlock arranged such that the force applicator cannot be released until the dose selector has been operated to select the dose of medicament, and a second mechanical interlock arranged such that the dose selector cannot be operated to select the dose of medicament prior to removal of the boot.

Disclosed is an auto-injection apparatus for receiving a syringe, including: an outer casing enclosing a drive assembly and a syringe carrier configured to hold a barrel of the syringe, the syringe carrier being forward of the drive assembly and having stowed and delivery positions; an interlock extending between the syringe carrier and a syringe carrier housing at least partially surrounding the syringe carrier, the interlock preventing forward motion of the syringe carrier under the influence of an insertion actuator whilst in the stowed position. The drive assembly includes the insertion actuator for inserting a needle of the syringe into an injection site and a delivery actuator for driving a plunger into a barrel of the syringe which contains a substance for injection. The syringe carrier includes an interlock release mechanism which is configured to release the interlock such that the insertion actuator drives the syringe carrier forward.

One example device includes a housing defining at least a first chamber and a second chamber; an injector disposed within the housing and comprising: a hollow needle coupled to a first piston, the first piston disposed and translatable within the first chamber towards a first end of the first chamber, the first piston defining a void intersecting a hollow portion of the hollow needle; a first propellant disposed within the first chamber and positioned to force the first piston towards the first end of the first chamber in response to activation of the first propellant; a dispenser disposed within the housing and comprising: a second piston disposed and translatable within the second chamber towards a first end of the second chamber; a second propellant disposed within the second chamber and positioned to force the second piston towards the first end of the second chamber in response to activation of the second propellant; and wherein translation of the first piston to the first end of the first chamber exposes the void to the first end of the second chamber.

An autoinjector having a body (1, 2), a reservoir (S) with piston, and a piston rod (5) movable between rest and injection positions. An actuator spring (6) urges the piston rod (5) towards its injection position. The autoinjector has a force-adjustment system (7, 8) exerting a force (F2) on the piston rod (5), adding to the force exerted by the spring (6) at the beginning of injection. Two pivot members (7) co-operate with the piston rod (5) and are connected together by two resilient elements (8). The body (1, 2) includes a sleeve (3), the pivot members (7) being pivotally mounted on the sleeve (3) to pivot about stationary pins (79). The autoinjector includes an end-of-injection indicator formed by and/or fastened to said sleeve (3) and includes an indication portion movable and/or deformable relative to the body (1, 2) to co-operate with a viewing window.