In one aspect, a safety pen needle assembly is provided herein which includes a hub with a needle fixed to the hub, the needle having a distal end, formed for insertion into a patient, and a proximal end. The assembly further includes a shield and a biasing member disposed between the hub and the shield configured to urge the shield distally. A protrusion extends from at least one of the hub and the shield with a channel being formed in at least the other of the hub and the shield. The channel is formed to accommodate the protrusion. The shield is movable from a first position to a second position. In the first position, the shield is spaced from the distal end of the needle such that the distal end of the needle is exposed. In the second position, the shield covers the distal end of the needle. The channel guides the protrusion as the shield moves from the first position to the second position. With this arrangement, a shield may be directed to move in a desired path with stability. In addition, the distal end of the needle may be initially exposed to permit visual confirmation of priming, while allowing the shield to cover a majority of the needle to minimize any needle-related anxiety.

An autoinjector includes a case adapted to hold a medicament container, a needle shroud telescopically coupled to the case, and a plunger slidably disposed in the case. The needle shroud is movable between a first extended position, a retracted position, and a second extended position relative to the case. The plunger is movable between a proximal position, an intermediate position, and a distal position relative to the case. When the plunger is in the intermediate position and the needle shroud is in the retracted position, the plunger abuts the case to prevent the needle shroud from returning to the extended position. When the plunger is in the distal position and the needle shroud is in the second extended position, the plunger abuts the case to prevent the needle shroud from returning to the retracted position.

An injector device for delivering a liquid medicament comprises an injector body having a proximal end and a distal end. The injector device further includes a syringe slidably received in the injector body and moveable from a first position to a second position towards the distal end of the body. Additionally, the injector device comprises a needle holder between the syringe and the distal end of the body, and a needle held in the needle holder. The needle has a distal end extending toward an opening in the distal end of the body, and a proximal end extending toward the syringe. The injector device also comprises a syringe biasing member within the body configured to bias the syringe into the second position. The syringe is spaced from the needle in the first position and is in engagement with the proximal end of the needle in the second position.

The disclosure relates to a drug delivery device comprising a body extending along a longitudinal axis, at least one arm member arranged within the body and extending essentially parallel to the longitudinal axis, and a container retaining a drug, wherein the container comprises a flange that is arranged at an axial position along the longitudinal axis, wherein the flange has at least one first radial edge region having a first radial distance to the longitudinal axis and at least one second radial edge region having a second radial distance to the longitudinal axis, wherein the second radial distance is greater than the first radial distance, and wherein, in the axial position, the at least one arm member is arranged and configured such that at least one aligning feature of the arm member is arranged at a third radial distance to the longitudinal axis that is smaller than the second radial distance.

A disposable injection device according to an embodiment has a locking structure to prevent reuse in which, in a state where a locking module accommodating a liquid cartridge in which the injection of an injection solution is completed is additionally pressed, when the pressing force is removed, the pressed locking module is raised and lowered due to a restoring force of an elastic spring located in a compressed state at a lower end of the locking module and locked to an outer housing, and thus the locking module is prevented from being further pressed, and smoothly separates the locking module from the outer housing through a separation guide portion having a tapered shape and formed on an upper end of the outer housing through a pressure head constituting an upper portion of a pressurizing piston unit in a state where in the injection of the injection solution is completed.

An administration assembly for a medicament delivery device is presented having a plunger rod, a plunger rod holder and an activation sleeve configured to receive a portion of the plunger rod holder. The triggering member is configured to move the activation sleeve from a first position to a second position relative to the plunger rod holder. The plunger rod is configured to be axially locked relative to the plunger rod holder when the activation sleeve is in the first position. The plunger rod is released from being axially locked when the activation sleeve is moved towards the second position.

An injection assembly includes a syringe barrel (12) having a proximal end and a distal end, a needle hub (20) supporting the needle and coupled to the distal end of the syringe barrel (12). A sleeve (32) is positioned on the syringe barrel and needle hub for sliding between a first position where the needle is covered and a second position exposing the needle. The sleeve (32) is biased to the extended position to cover the needle. The sleeve has a distal end (38) and a proximal end (40). During use, the syringe is positioned against the skin of the patient so that distal end of the sleeve contacts the skin of the patient before the needle so that lateral or angular force applied relative to the surface of the skin is absorbed by the sleeve to inhibit sliding of the sleeve and resist bending of the needle during insertion.

Disclosed is an auto injector and a method for administering a medicament. The auto injector comprising: a housing; a cartridge receiver; a drive module coupled to move a plunger rod configured to move a first stopper; a temperature sensor configured to provide a temperature signal indicative of the temperature of the medicament in the cartridge; a processing unit configured to: receive the temperature signal; control the drive module to move the plunger rod from a first plunger rod position to a mix plunger rod position wherein the movement from the first plunger rod position to the mix plunger rod position is based on the temperature signal.

A drug delivery device includes a housing defining a shell, a drug delivery assembly at least partially disposed within the housing, a cap defining an opening and being adapted to at least partially cover an end of the housing, at least one electronic component, a power source which powers the at least one electronic component, and a switch assembly. The drug delivery assembly comprises a guard which engages an inner surface of the housing and is movable between a first position, a second position, and a third position relative to the housing and is adapted to restrict external contact with a cannula. The switch assembly causes the power source to provide power to the at least one electronic component when the cap is removed from the housing, restrict the power source from providing power when the cap is coupled to the housing and the guard is in the first position, and cause the power source to provide power when the cap is coupled to the housing and the guard is in the third position.

Disclosed is a pen needle including: a needle; a needle hub which comprises a coupling structure, which can be screw-coupled to a body, holds the needle and has protrusions formed on a supporting surface; a spring which has one side supported on the supporting surface and provides resilience; a plunger which has a plurality of resilient blades, which can be folded or unfolded, and has a hollow through which the needle passes; a small cap which is supported on the other side of the spring and receives the plurality of blades such that the plurality of blades can be received therein or be dislodged; and a medium cap which is coupled to the small cap, accommodates the small cap such that the small cap can move, and has serrations corresponding to the protrusions.