Infusion port, also known as implantable intravenous drug delivery system, chemotherapy pump, port, etc., is an effective way for patients to receive various treatments through central venous access established by a catheter connected to a port implanted under the skin. It can be implanted in the body for a long period of time to facilitate infusion of fluids at any time. Infusion port implantation is performed by an interventional radiologist in a catheterization room, under sterile, awake patient conditions. The catheter is implanted into a suitable vein (usually the right or left subclavian vein) by percutaneous puncture, a skin capsule is made under the skin of the subclavian fossa to implant the port, the port and catheter are connected in a catheter tunnel, and the catheter is placed into the superior vena cava under X-ray surveillance. Advantages of infusion port: 1.Venous access: avoid the pain and difficulty of repeated venipuncture, long-term retention, ready to standby; 2.Vital access: any medicine, viscous nutrient solution, blood transfusion, etc. can be infused smoothly; 3.Convenient blood collection: blood can be drawn through the infusion port for laboratory tests, no need to puncture the vein to draw blood; 4.Convenient maintenance: monthly flushing with saline or heparin saline can be done between treatments; 5.Aesthetic appearance 6. Freedom of movement: no need to change medication, bathing, no restriction on activities and high quality of life. Indications for infusion port: 1. Patients who need long-term and repeated drug infusion; 2. Elderly and frail, post-stroke, various leukemia, lymphoma, cancer patients who need repeated chemotherapy, need intravenous supplementation, repeated blood transfusion, laboratory tests, avoiding extravasation of chemotherapy drugs, etc.