An injection apparatus that includes components that facilitate injection
of relatively viscous materials into a subject is provided as well as
methods of use. An injection apparatus may include a transition-bore
needle apparatus, which has a proximal end, a distal end, and a lumen
extending from the proximal end to the distal end, in which the diameter
of the proximal end is greater than the diameter of the distal end. An
injection apparatus may include a hand-held injection facilitation
apparatus, which may be coupled to a syringe. The hand-held injection
facilitation apparatus can include a pivot arm and a body with a rod
disposed within the body and coupled to the pivot arm. Movement of the
pivot arm results in a proximal or distal movement of the rod within the
body to effectively cause material to be expelled from the syringe. An
injection apparatus may include a transition-bore needle apparatus and a
hand-held injection facilitation apparatus in combination.