Cold slurry syringe

A device for delivering cold slurry, the device comprising:

• a syringe body comprising:
• a first end and a second end;
• a longitudinal axis extending from the first and second ends;
• an interior lumen defined by an interior wall of the syringe body, the interior lumen configured to receive and contain a volume of cold slurry;
• a plunger slideably movable within the interior lumen along the longitudinal axis, the plunger comprising a stopper and a stem extending from the stopper;
• a syringe head extending from the first end of the syringe body along the longitudinal axis, the syringe head comprising:
• an inlet defining a first passageway in fluid communication with the interior lumen of the syringe body, the first passageway having a first diameter about the same as a diameter of the interior lumen;
• an outlet spaced a predetermined distance from the inlet along the longitudinal axis, the outlet defining a second passageway in fluid communication with outside to serve as an exit for delivering cold slurry, the second passageway having a second diameter smaller than the first diameter;
• and
• a reducer extending between the inlet and outlet, the reducer defining a third passageway in fluid communication with the first and second passageways, the third passageway having a third diameter tapering from the first diameter to the second diameter;
• and
• an agitator for stirring the cold slurry within the interior lumen, the agitator housed within the interior lumen and interposed between the plunger and the first end of the syringe body, the agitator comprising:
• a hub shaped as a frustum of a cone with a base facing the first end of the syringe body;
• and
• a plurality of fins radiating from the hub towards the interior wall of the syringe body.