Vial adapter and injection kit for withdrawing a liquid medicament from an injection vial

1 . A vial adapter for connecting to an injection vial that comprises a barrel and a barrel head with an outlet, wherein the outlet is sealed by a pierceable stopper and wherein the pierceable stopper comprises an inside surface, the vial adapter comprising:

an adapter body comprising a top wall and a sidewall projecting from the top wall in a longitudinal direction to form a receptacle with a distal side of the top wall, wherein the receptacle is configured to receive at least a portion of the barrel head;

a movable part comprising a base part and a spike fixed to the base part, wherein the spike extends through the top wall in a distal direction into the receptacle, and wherein the movable part is movable relative to the adapter body between an undeployed position and a deployed position;

an interlock operable to lock the movable part in the undeployed position; and

an actuating member extending into the receptacle,

wherein the actuating member is coupled to the interlock and operable to unlock the interlock when actuated,

wherein the interlock comprises a locking element configured to engage with the movable part,

wherein the interlock is transferable from a locking configuration into a release configuration by an actuation of the actuating member,

wherein when the locking element is in the locking configuration, a longitudinal proximal displacement of the movable part relative to the adapter body is prevented, and

wherein when the locking element is in the release configuration, the longitudinal proximal displacement of the movable part relative to the adapter body is allowed.

2 . The vial adapter according to claim 1 , comprising a biasing element operably engaged with the adapter body and the movable part, the biasing element configured to apply a biasing force between the adapter body and the movable part to displace the movable part from the undeployed position towards and into the deployed position.

3 . The vial adapter according to claim 2 , wherein the movable part is movable into the deployed position by the biasing element in response to a transfer of the interlock from a locked configuration into an unlocked configuration.

4 . The vial adapter according to claim 1 , wherein the actuating member is actuatable by inserting the barrel head of the injection vial into the receptacle of the adapter body.

5 . The vial adapter according to claim 1 , wherein the actuating member comprises a first projection extending in the longitudinal direction through the top wall and protruding from the distal side of the receptacle.

6 . The vial adapter according to claim 5 , wherein the actuating member comprises a second projection extending in the longitudinal direction through the top wall and protruding from the distal side of the receptacle, wherein the second projection is radially or transversely offset from the first projection.

7 . The vial adapter according to claim 1 , wherein the actuating member is movable in the longitudinal direction relative to the adapter body.

8 . The vial adapter according to claim 1 , wherein the actuating member is movable in a longitudinal proximal direction from an initial position into an actuating position against an action of a reset element.

9 . The vial adapter according to claim 1 , wherein the locking element is one of pivotable, rotatable, movable, deflectable, or deformable relative to the adapter body between the locking configuration and the release configuration,

wherein when in the locking configuration, the locking element is in longitudinal abutment with a proximally facing stop face of the movable part.

10 . The vial adapter according to claim 1 , wherein the actuating member comprises an engagement portion configured to mechanically engage with the locking element,

wherein the engagement portion is configured to induce at least one of a pivoting, rotating, moving, deflecting, or deforming of the locking element along a transverse direction or radial direction when the actuating member is subject to a movement in a longitudinal proximal direction.

11 . The vial adapter according to claim 1 , wherein the spike comprises an elongated fluid channel, a tipped distal end configured to penetrate the pierceable stopper, and a channel aperture in fluid communication with the elongated fluid channel.

12 . The vial adapter according to claim 11 , wherein the movable part is adjustably movable relative to the adapter body along the longitudinal direction to align the channel aperture with the inside surface of the pierceable stopper.

13 . The vial adapter according to claim 11 , wherein the spike comprises:

an elongated channel sidewall confining the elongated fluid channel;

a channel projection protruding laterally from the elongated channel sidewall; and

a proximally facing abutment face to abut longitudinally with the inside surface of the pierceable stopper.

14 . The vial adapter according to claim 11 , wherein the movable part comprises a mechanical connector to fluidically connect with a fluid transfer device;

wherein the elongated fluid channel merges into the mechanical connector.

15 . The vial adapter according to claim 14 , wherein the mechanical connector protrudes from a proximal end face of the adapter body when the movable part is in the deployed position.

16 . The vial adapter according to claim 14 , wherein the mechanical connector is concealed by the adapter body when the movable part is in the undeployed position.

17 . An injection kit for administering a liquid medicament, the injection kit comprising:

an injection vial comprising:

a barrel to accommodate a liquid medicament; and

a barrel head with an outlet that is sealed by a pierceable stopper and wherein the pierceable stopper comprises an inside surface; and

a vial adapter comprising:

an adapter body comprising a top wall and a sidewall projecting from the top wall in a longitudinal direction to form a receptacle with a distal side of the top wall, wherein the receptacle is configured to receive at least a portion of the barrel head;

a movable part comprising a base part and a spike fixed to the base part, wherein the spike extends through the top wall in a distal direction into the receptacle, and wherein the movable part is movable relative to the adapter body from an undeployed position into a deployed position;

an interlock operable to lock the movable part in the undeployed position; and

an actuating member extending into the receptacle,

wherein the actuating member is coupled to the interlock and operable to unlock the interlock when actuated,

wherein the spike comprises:

an elongated fluid channel;

a tipped distal end configured to penetrate the pierceable stopper; and

a channel aperture in fluid communication with the elongated fluid channel;

an elongated channel sidewall confining the elongated fluid channel;

a channel projection protruding laterally from the elongated channel sidewall; and

a proximally facing abutment face to abut longitudinally with the inside surface of the pierceable stopper.

18 . A method of withdrawing a liquid medicament contained in an injection vial, the method comprising:

engaging a vial adapter with a barrel head of the injection vial, wherein the vial adapter comprises an adapter body, a movable part comprising a spike, a biasing element, an interlock, and an actuating member;

penetrating a pierceable stopper of the injection vial in a longitudinal distal direction with the spike, wherein the pierceable stopper seals an outlet of a barrel of the injection vial;

releasing the interlock by actuating the actuating member; and

displacing the movable part from an undeployed position towards and into a deployed position by the biasing element.

19 . A method of administering an injectable medicament from an injection vial, the method comprising:

using a vial adapter for connecting to an injection vial;

wherein the injection vial comprises:

a barrel; and

a barrel head with an outlet that is sealed by a pierceable stopper, wherein the pierceable stopper comprises an inside surface; and

wherein the vial adapter comprises:

an adapter body comprising a top wall and a sidewall projecting from the top wall in a longitudinal direction to form a receptacle with a distal side of the top wall, wherein the receptacle is configured to receive at least a portion of the barrel head;

a movable part comprising a base part and a spike fixed to the base part, wherein the spike extends through the top wall in a distal direction into the receptacle, and wherein the movable part is movable relative to the adapter body between an undeployed position and a deployed position;

a biasing element operably engaged with the adapter body and the movable part, the biasing element configured to apply a biasing force between the adapter body and the movable part to displace the movable part from the undeployed position towards and into the deployed position;

an interlock operable to lock the movable part in the undeployed position; and

an actuating member extending into the receptacle, wherein the actuating member is coupled to the interlock and operable to unlock the interlock when actuated.