A conical needle includes a hollow needle body has a distal end and a proximal end. The needle body has a substantially consistent cross-sectional diameter along the entire length of a central longitudinal axis of the needle body between the proximal end and the distal end of the needle body. The interior of the needle body defines a fluid pathway extending along the longitudinal axis. A conical portion is located at the distal end of the needle body. The conical portion has a sidewall, a distal end, and a proximal end. The conical portion forms a sharp tip located at the distal end of the conical portion. A lateral opening is located fully within the sidewall of the conical portion. The lateral opening is in fluid communication with the fluid pathway.
