Methods and apparatuses for delivering medicaments to intravenous fluid

An apparatus for preparing a medicament to be introduced into an intravenous fluid comprising:

• a body having an internal fluid reservoir containing a predetermined volume of intravenous fluid;
• a cap attached to one end of the body securing a vial containing a predetermined volume of medicament therein;
• the cap moveable relative to the body to puncture a seal of the vial with a needle secured in the body;
• a barrel dial rotatably disposed within the body and defining an internal fluid reservoir;
• and
• a plunger received within the barrel dial and axially movable relative thereto to move the intravenous fluid into and out of the internal fluid reservoir of the barrel dial;
• wherein the barrel dial is configured to rotate relative to the body between a first position to align a vial orifice thereof with the needle such that the intravenous fluid can flow between the internal fluid reservoir of the barrel dial and the vial while being prevented from flowing between the internal fluid reservoir of the barrel dial and the internal fluid reservoir of the body, and a second position to align a reservoir orifice thereof with the internal fluid reservoir of the body such that the intravenous fluid can flow between the internal fluid reservoir of the barrel dial and the internal fluid reservoir of the body while being prevented from flowing between the internal fluid reservoir of the barrel dial and the vial.