Implantable IV port definition It is a vascular access system that is completely implanted in the body, which provides long-term vascular access to patients for intravenous infusions. Indications for implantable intravenous port 1.Patients who need long term or repeated intravenous infusion. 2.Patients with tumor who need to undergo chemotherapy periodically. Advantages of the implantable infusion port 1.Low risk of infection: The infusion port is embedded in the subcutaneous layer of the body, thus reducing the risk of catheter-related infection. 2.Convenience to patients: It does not affect the normal life of patients and allows them to take showers, swim and other activities. The infusion port is buried under the skin and is not easily noticed by others. 3.Reduces the number of punctures of blood vessels, protects blood vessels and reduces 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 19G of non-invasive puncture needle puncture 1000 times, butterfly needle continuous use 7 days to calculate, infusion port can be used for 19 years. Implantable infusion port care The nurse wears a mask, washes hands thoroughly, and wears sterile gloves. Using a complex iodine cotton ball, wipe the infusion port in a spiral manner with a radius of approximately 10-12 cm in an outward direction, repeating the above steps three times. Deflate the non-invasive needle with 10 ml or more of saline from an empty disposable needle and clamp the extension tube closed. Locate the puncture compartment by palpation: Make a triangle with the thumb, index finger and middle finger of the non-dominant hand, fix the infusion port, and determine the midpoint of these three fingers. Gently insert the puncture septum vertically from the midpoint of the infusion port straight to the bottom of the reservoir. After opening the clip of the extension tube and drawing back blood to make sure the needle position is correct, the infusion port is flushed with saline in a pulsatile manner, the extension tube is clamped and the syringe is detached and covered with a sterile dressing. For infusion, connect the infusion set to the extension tube, release the clip and slowly inject the drug. At the same time, closely observe the injection site for any oozing phenomenon. If abnormalities are found, the injection is immediately stopped and appropriate measures are taken. After the treatment, the tube is pulsed with 20ml saline, sealed with positive pressure, and the extension tube is added and closed. During the infusion period, the infusion port is replaced every 7 days without damage to the needle. If blockage occurs, dilute urokinase 5000u/ml, 0.5ml can be injected into the lumen of PICC tube using negative pressure technique, stay for 15-20 minutes and then pump back with a syringe, with blood extraction that indicates successful melting of the embolus. If no blood is withdrawn, the above operation can be repeated repeatedly so that urokinase stays in the catheter for a certain period of time until blood is withdrawn. It is important to note that the total amount of urokinase should not exceed 15,000 u. After the catheter is patent, 5 ml of blood is withdrawn to ensure that all the medication and clots are withdrawn.