Customizable Multichamber Device

This disclosure relates to a multichamber device for administration of substances to a patient. The multichamber device comprises a first end comprising one or more ports and a second end opposite of the first end. The multichamber device further comprises a first plurality of septa and a second plurality of septa dividing the interior into a plurality of chambers, the first plurality of septa being parallel with the first end and configured to open, the second plurality of septa configured to remain sealed, the chambers further divided into a main chamber abutting the first end and being wider than the rest of the plurality of chambers and the rest of the plurality of chambers being organized into columns such that the columns extend from the second end to the main chamber and are oriented so that the first plurality of septa are configured to open toward the first end. The disclosure further relates to methods of using the multichamber device.