Pre-filled multi-fluid medical delivery assemblies

A method for delivery of liquid agents to a patient, comprising:

• (a) providing a blow-fill-seal (BFS) module having first and second longitudinal ends, the BFS module comprising:
• first and second chambers, the first chamber having a first liquid agent therein, the second chamber having a second liquid agent therein;
• first and second sealed ports proximal to the first longitudinal end of the BFS module, the first sealed port being in fluid communication with the first chamber, the second sealed port being in fluid communication with the second chamber;
• and
• first and second actuation members proximal to the second longitudinal end of the BFS module, the first actuation member being in fluid communication with the first chamber, the second actuation member being in fluid communication with the second chamber;
• (b) inserting the first longitudinal end of the BFS module into a sixth longitudinal end of a manifold such that the first and second sealed ports are aligned with first and second longitudinally-extending piercing elements within the manifold, the manifold defining a second internal volume extending from a fifth longitudinal end thereof to the sixth longitudinal end, a portion of the second internal volume proximal to the fifth longitudinal end defining a mixing chamber;
• (c) inserting the fifth longitudinal end of the manifold into a third longitudinal end of a base housing, the base housing having the third longitudinal end and a fourth longitudinal end, the base housing defining a first internal volume extending from the third longitudinal end to the fourth longitudinal end;
• (d) inserting a plunger into the third longitudinal end of the base housing, the plunger comprising a laterally-extending first member and a longitudinally-extending second member;
• (e) after (d), displacing the second member of the plunger longitudinally toward the third longitudinal end of the base housing so as to push the BFS module toward the third longitudinal end of the manifold without compressing the first and second actuation members, such that the first and second sealed ports are breached by the piercing elements;
• (f) after (e), displacing the first member of the plunger longitudinally toward the third longitudinal end of the base housing so as to compress the first and second actuation members of the BFS module, such that the first and second liquid agents are dispensed from the first and second chambers into the mixing chamber via the breached ports;
• (g) after (f), removing the plunger from the base housing, such that the first and second actuation members of the BFS module revert to respective uncompressed states;
• (h) after (g), removing the manifold and the BFS module as a unit from the base housing;
• and
• (i) after (h), re-compressing the first and second actuation members to pressurize the first chamber, the second chamber, and the mixing chamber to cause dispensing of contents thereof.