Arterial pressure injection is a different route of drug delivery from intravenous injection, which is less used clinically, and generally the injectable is chosen for intravenous drip, because the arterial pressure is higher than that of the vein. Without pressurization, it is difficult for the drug to enter the body through the artery. The injection site is usually chosen at the radial artery on the inner side of the wrist or the brachial artery on the upper arm, which are relatively better to operate, so that the blood volume can be quickly replenished to raise the blood pressure against shock, which can also be said to improve the coronary perfusion flow and anti-tumor purposes. It is mainly used in emergency situations, such as treatment methods for local tumors, and diseases such as cerebral insufficiency of blood supply or atherosclerosis leading to vascular occlusion, as well as diseases such as deep vein thrombosis in the lower extremities. For cancer, it can shrink the tumor in a short period of time, and because the drug is concentrated locally, there are relatively few side effects.