The gospel of tumor patients, no longer need to endure the daily injection and suspension, no longer need to worry about chemotherapy drug leakage skin damage, no longer need to put potato chips on the back of the hand every day, no longer need to find blood vessels in the head of the affected child. There are no more exposed tubes on the body, the device is completely implanted in the body, and you can take a shower or even swim between chemotherapy treatments, and you can wear nice clothes in summer, and you can fully resume your normal social life. Maintenance is also convenient, only once a month, so you don’t have to run to the hospital week after week. Introduction of fully implantable infusion port technology: In the process of chemotherapy for tumor patients, due to the stimulation and damage of peripheral veins by chemotherapy drugs, often after receiving several courses of treatment, peripheral veins are severely damaged and difficult to puncture, and it is difficult to establish peripheral venous access, while patients need to have uninterrupted and long-term venous access. In addition, pediatric oncology patients, elderly patients with long-term infusions or patients with local edema due to disease have difficulty in injecting peripheral superficial veins, and some special patients who need long-term veins also need long-term safe venous access. Most of these patients currently have a central venous catheter placed through a peripheral vein. However, because the catheter is exposed outside the body, the incidence of infection is significantly higher in PICC catheters left in place for more than 1 month. In addition, ambulatory patients with indwelling PICC catheters are prone to serious complications such as catheter slippage and air embolism due to the lack of timely care. At the same time, exposed central venous catheters often interfere with patients’ daily life, work and activities and affect their normal social activities. The implantable intravenous port is a new type of fully implanted long-term intravenous vascular access system that has been developed in recent years. The IV “PORT” is a subcutaneous embedded IV infusion system, which is an IV infusion device that is completely implanted under the skin and can be left in the body for a long time, like a “port” for IV infusion. The system consists of a punctured injection seat and an intravenous catheter. The procedure is simple and takes approximately 30-45 minutes to complete, requiring only local anesthesia. The catheter is inserted through a skin puncture into the subclavian or internal jugular vein and delivered distally to the junction of the superior vena cava and right atrium. A skin incision is made below the clavicle and the injection seat is buried under the skin so that the catheter and the infusion port seat are buried in the subcutaneous tissue and only a circular bump can be palpated on the patient’s body surface. During treatment, a non-invasive vertical needle is positioned from the center of the circular bump and punctured vertically through the skin to the reservoir of the injection block, which immediately and easily establishes central venous access for infusion of various drugs, such as chemotherapy, rehydration, nutritional support therapy, blood transfusion and blood sample collection. The IV port can establish a long-term, stable deep venous access and avoid repeated peripheral venipuncture. After the IV port is placed, it is easy, safe and fast to administer medication, simple and convenient to take care of, and compared with the PICC and other central venous catheters commonly used nowadays, the appearance of the buried subcutaneous “infusion port” does not leave any trace, which maintains the patient’s image and does not affect social activities. It also reduces the chances of infection and does not restrict daily life, even bathing and swimming without fear, which helps patients to return to society better and thus achieve social rehabilitation. If the infusion port is properly maintained, its service life can be more than 10 years, and the IV port only needs to be flushed once every 4 weeks during the non-therapeutic period, which reduces the frequency of patients returning to the hospital for maintenance and reduces the workload of nurses.