Reservoir assembly for infusing fluids

摘要

There is disclosed a reservoir assembly for infusing fluids comprising:
a reservoir (2830) of variable volume, the reservoir characterized by a longitudinal reservoir axis;
a plunger (2835) inserted into the bottom of the reservoir;
and
a plunger rod (2840) coupled to the plunger, the plunger, when axially displaced, causing a change in volume in the reservoir, the rod comprising threads for at least a portion of its length.