The apparatus for deployment of a therapeutic device such as a micro-coil detachably mounts the therapeutic device to a distal portion of a pusher member. The print assembly includes a plurality of printhead modules configured to print upon the print media. Potassium salt grains are adhered to the pellet surfaces and a dust control agent coating is applied to retain the grains on the pellet surfaces. The check valve includes a cavity within the cylinder wall of the crankcase, located at the end of the bore in the cylinder wall where it meets the bore in the cylinder head, and a check ball disposed within the cavity. A variety of options when collecting the profiling data and grouping the data members is supported. The composition comprises a fluorine-containing polyether represented by formula ,, p and q represent, independently of the symbols in other formulae, any chosen integers).