Intravenous infusion is the main method of long-term total parenteral nutrition and chemotherapy for malignant tumors. The traditional infusion is to inject fluids through peripheral superficial vein puncture, which is prone to complications such as superficial phlebitis, drug leakage, local sclerosis, and even extensive tissue necrosis. In order to minimize the above complications, PICC (Peripheral Inserted Central Catheter) is widely used in the clinic, which is to deliver a long and thin tube from the peripheral vein to the central vein against the heart. However, PICC will have a section of catheter exposed outside the skin, which makes the patient’s life inconvenient, unable to bathe or swim; prone to upper extremity venous thrombosis and infection, and even lead to catheter-related sepsis and life-threatening. In addition, extracorporeal indwelling catheter care is cumbersome, every week you have to go back to the hospital to maintain the catheter, and the catheter is left for a short period of time, usually placed for no more than six months. In order to provide patients with comfortable, safe and long-term vascular access, the Department of Vascular Surgery of Peking University First Hospital has innovatively carried out the advanced method of placing Totally implantable venous-access ports (TIVAP) through the superficial jugular vein, which is a kind of completely implanted vascular access system. TIVAP is a fully implantable vascular access system that consists of a port body for puncture and an intravenous catheter system. The catheter is implanted into the central vein through the superficial vein of the neck during the surgery, and the surgery is performed under direct vision, avoiding the risks of bleeding, arterial damage, nerve damage, and pneumothorax caused by puncturing the deep vein. Moreover, there are no stitches in the epidermis and no need to remove stitches. As all the devices are buried in the subcutaneous tissue and protected by the skin, there is minimal restriction on daily life and little need for maintenance during use and intervals. It is suitable for patients who need long-term repeated intravenous chemotherapy, blood transfusion, parenteral nutrition and oncology patients who need supportive therapy. Advantages include: Less susceptible to infection: the risk of infection is reduced because the entire system is completely embedded under the skin. Improved quality of life for the patient: bathing and swimming are possible, and the port and catheter are embedded under the skin without interfering with social activities. Simple maintenance: once a month between treatments. Long service life: according to the calculation that the puncture septum can be punctured 1000 times by the 19G non-invasive puncture needle and the butterfly wing needle can be used continuously for 7 days, the infusion port can be used for 19 years. It is called “invisible lifeline” by patients.