Implantable intravenous port: It is an intravenous infusion device that can be implanted under the skin and left in the body for a long time, which can be used for infusion of chemotherapy drugs, rehydration, nutritional support, blood transfusion and other treatments, as well as for blood sample collection. By using a non-invasive needle to puncture the infusion port, infusion channels can be established, reducing the pain and difficulty of repeated venipuncture and eliminating serious complications such as phlebitis caused by infusion of chemotherapy drugs into peripheral veins. This technology has been used for many years in China and abroad. Advantages of implantable infusion port: 1, low risk of infection: because of its simple operation and subcutaneous embedding, thus reducing the risk of infection. 2.Convenient for patients: no insertion of butterfly needles, can enter bathing and swimming, buried under the skin is not easy to be noticed by others. 3.Reducing the number of punctures of blood vessels, protecting blood vessels and reducing the chance of drug extravasation. 4.Simple maintenance, maintenance can be done once in 4 weeks between treatments. 5.Long service life: according to the puncture septum can let the 19G non-invasive puncture needle puncture 1000 times, butterfly needle continuous use 7 days to calculate, infusion port can be used for 19 years. IVPA implantation method: After obtaining the patient’s consent and the family’s signature, the catheter is sent to the catheterization laboratory for subcutaneous IVPA under local anesthesia. The steps are as follows: 1. After local anesthesia, the catheter is punctured through the skin and sent through the subclavian vein, and the end of the catheter can be located in the subclavian vein or a deep vein such as the superior vena cava, and the ideal end of the catheter should be at the junction of the superior vena cava and the right atrium; 2. The location is generally chosen for the anterior chest arm, such as the subclavian fossa. For patients with a thin physique, the IVPA can be buried below the pectoral muscle so that the surface is protected by a sufficient thickness of tissue. The catheter is connected and secured to the infusion seat with a connector, and the infusion seat is placed into the capsule and secured with non-absorbable sutures to the surrounding tissue. The surface of the infusion seat should be covered with intact skin to avoid puncture of the puncture needle through the suture during use. The sutures are removed 7 days after surgery.