Integrated sliding seal fluid pathway connection and drug containers for drug delivery pumps

An integrated fluid pathway connection and drug container comprising:

• the drug container including:
• a barrel,
• a plunger seal disposed within the barrel, and
• a pierceable seal integrated at least partially within the drug container,
• the barrel, the plunger seal, and the pierceable seal defining a drug chamber retaining a drug fluid,
• a seal mount coupled to the pierceable seal, the seal mount having a connection rim;
• a biasing member configured to exert a pressure on the plunger seal;
• and
• the integrated fluid pathway connection including:
• a piercing member including a proximal end and a distal end,
• a connection hub, the piercing member being disposed through the connection hub, the connection hub comprising one or more connection prongs configured to engage the connection rim of the seal mount to prevent relative translation of the pierceable seal away from the connection hub,
• a fluid conduit in fluid communication with the distal end of the piercing member,
• the piercing member and pierceable seal including a first configuration and a second configuration,
• wherein, in the first configuration, the proximal end of the piercing member is disposed at least partially distally to the pierceable seal within a sterile cavity between the connection hub and the pierceable seal, and the drug fluid is not delivered to the piercing member,
• wherein, in the second configuration, the piercing member extends through the pierceable seal, and the drug fluid is delivered to the piercing member, and
• wherein a relative movement between the pierceable seal and the piercing member from the first configuration to the second configuration is caused by a force applied by the drug fluid on the pierceable seal in response to a force applied by the biasing member.