公开(公告)号：US20240198014A1

公开(公告)日：2024-06-20

申请号：US18286982

申请日：2022-04-14

申请人： West Pharmaceutical Services, Inc.

发明人： Michael SULLIVAN ,  Zachary WALLACE ,  Lawton LAURENCE ,  Lauren NUTT ,  Nicholas CICCARELLI ,  Shaun DEVITT

IPC分类号： A61M5/32 ,  A61M5/20

CPC分类号： A61M5/326 ,  A61M5/2033 ,  A61M5/3202 ,  A61M5/322

摘要： An assembly for an injection device is described. The assembly includes a container containing the medicament and having a cap. The container is sealed by a septum. A sealing element is in contact with an external surface of the cap and a needle is provided for piercing the septum. A needle hub is attached to the needle, where the sealing element is disposed between the external surface of the cap of the container and an internal surface of the needle hub. The assembly transitions from a first state, in which the needle is held away from the septum and a free end of the needle sits in a cavity sealed by the sealing element, to a second state, in which the needle passes through the septum. The seal is maintained throughout transition and when the assembly is in the second state.