Apparatus for delivery of radioembolization microspheres

A vial comprising;

• a bottom interior surface at least a portion of which has an incline angle to a horizontal plane greater than 0 degrees and a cylindrical interior wall substantially perpendicular to the horizontal plane and meeting the bottom interior surface, wherein the bottom surface and cylindrical wall form a container for containing a liquid;
• an outlet channel for fluid flow out of the vial through the cylindrical wall;
• an inlet channel for fluid flow into the vial through the cylindrical wall, the inlet channel defining a direction vector of fluid flow, wherein the direction vector is oriented at a first predefined angle with respect to the horizontal plane and oriented at a second predefined angle with respect to a line tangent to the cylindrical interior wall such that fluid flowing in through the inlet channel causes an upwardly moving fluid vortex to be created in the vial.