The present specification relates to a plunger configured to transmit a force from an energy source to a piston of a primary container, the plunger comprising a plunger rod configured to be subjected to the force from the energy source, the plunger rod having an inner surface forming a cavity, wherein a support element adapted to constrain the energy source within the cavity protrudes radially inwards from the inner surface into the cavity.

An injector (10) for injecting a medicament into a patient. The injector includes a container (18) defining a first chamber (22), which contains a fluid therein, and a second chamber (23). The injector also includes an injection conduit (126) configured for directing the fluid fired from the container into the patient. A transfer mechanism is operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation, and a firing mechanism is operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation. An energy source (62) is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.

A medicament delivery device is presented having a medicament container having an attached medicament delivery member; a housing where the medicament container is movable between a retracted and an extended position in which the medicament delivery member extends from the housing; a drive unit that advances the medicament container from its retracted position to its extended position to expel the contents through the medicament delivery member; and a medicament container holder for carrying the medicament container as it is advanced, the medicament container holder having a proximal end through which the medicament delivery member extends and a holding member releasably connected to the drive unit and attached to the medicament container holder. The holding member has a biasing element having a resilient structure in the form of a tubular wall provided with slots extending in the generally circumferential direction arranged to bias the medicament container in the proximal direction in the medicament container holder.

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.

A medicament delivery device system for delivery of a medicament from a cartridge (10). The system comprises a first container (11) for storage of a first substance, a second container (12) received in the first container (11) for storage of a second substance, and valve means (68) for closing a distal end of the second container (12). The system further comprises a disposable cassette (102) and a reusable firing unit (200). The cassette (102) has a body (104) for receiving the cartridge (10), and a mixing element (148) for displacing the second substance into the first chamber (16) in a mixing stroke, to mix with the first substance to form the medicament. The firing unit (200) comprises a drive element (208) for expelling the medicament from the first chamber (16) in a delivery stroke and a trigger arrangement (240) for initiating the delivery stroke.

This relates to an injection device comprising a housing for receiving a product container, which has a rigidly connected injection needle, and a cap for removing a needle protection cap from the product container. The cap comprises an engagement element in order to carry out the removal of the needle protection cap from the product container while removing the cap from the injection device. The cap further comprises a rotating sleeve, wherein the rotating sleeve has a reverse rotation protection element, and the engagement element or the housing has a reverse rotation protection counter-element in order to allow a rotation of the rotating sleeve in one direction and block the rotation in the opposite direction.

According to the invention a safety device for a pre-filled syringe comprises a substantially cylindrical and hollow support body and a hollow needle shield slideably arranged relative to the support body. The support body comprises at least one resilient arm and the hollow needle shield or a needle shield assembly comprises at least one curved actuation ramp. The curved actuation ramp protrudes in a lateral direction (L) perpendicular to a central axis (A) of the safety device. The curved actuation ramp comprises a first lateral dimension (L1) at a proximal end of the needle shield and a second lateral dimension (L2) exceeding the first lateral dimension (L1) at a distal end of the needle shield. The resilient arm engages the curved actuation ramp when the needle shield is slid relative to the support body.

A needle protection assembly, adapted to protect a tip of a hypodermic needle, comprising a shield adapted, in a protected operative orientation of the needle protection assembly, to shield the tip of the hypodermic needle, a locking element including at least one slot, the slot including at least three surfaces corresponding to three operative orientations of the shield, at least one slot engaging element, functionally associated with the shield, the slot engaging element being disposed within the slot of the locking element and movable relative thereto, between the surfaces, so as to transition the shield between the three operative orientations, and at least one biasing element, adapted for axial biasing of the shield, wherein the three operative orientations include a storage operative orientation, an injection operative orientation, and a needle protection operative orientation.

A syringe capping and uncapping device which includes a body portion and a flange portion. The body portion has a receptacle and a guard wall. The receptacle has an outer surface and an inner surface that defines a cavity configured to receive and hold a cap of a syringe. The guard wall circumferentially surrounds the outer surface of the receptacle. The flange portion extends radially outward from a top end of the body portion. A portion of the guard wall may be pivotably coupled to the flange portion so that a force applied onto the portion of the guard wall in an inward direction may cause the guard wall to pivot inwardly and compress the receptacle into forcible contact with the cap of the syringe held in the cavity to facilitate removal of the cap from the syringe.

An electrical information device configured to communicate information related to a medicament delivery performed by a medicament delivery device is presented. The device includes at least one information communication unit configured to communicate the information, and at least one power providing arrangement including at least one power source, at least one electrical switch and at least one switch lock member. The at least one switch lock member being configured to be movable in an axial direction from a first position to a second position by an axial movement of at least one triggering member of the medicament delivery device, to cause a change of state of the at least one electrical switch in the second position, thereby providing electrical power to the at least one information communication unit from the at least one power source, and to be locked in the second position, such that the change of state of the electrical switch is maintained.