As it was tested in practice, it is necessary to have a permanent and stable access to the patient's vascular system for effective chemotherapy. In 1984, Muller, American physician, suggested to use special permanent implantation systems - so-called ports - for continuous intravenous drug infusion, chemotherapeutic agents in particular. Ports for chemotherapy are established subcutaneously in a convenient area for future interventions. Port intravenous infusion part is a titanium tank having a diameter of 4-4.5 cm and a thickness of about 1 cm. On the inside port is covered with bioinert polymer. The port has special silicone membrane on it's upper part, through which the drugs can be injected. On the opposite part there is a thin tube with a length of 10-15 cm. Depending on the situation, tube can be lowered into the jugular vein or the artery (rarely). To date, subcutaneous port system is the most acceptable way of intravenous drug infusion for patients who require a long-term and regular chemotherapy or other regular intravenous infusions. This port canceles the necessity of frequent intravenous cathether installations.