A medical apparatus comprises a machine (2) for treatment of fluids provided with means (3) for treating a patient's blood which exhibits a control unit (4) for sending command signals and receiving information relating to the treatment under way on the patient. The machine further comprises an internet web server (11) containing a predetermined number of web pages which are remotely accessible and consultable via a common web browser (18). At least a web page reproduces the graphic user interface on the display (6) of the medical machine (2) substantially in real-time. A plurality of further information and data relating to the medical machine is further published in the web pages.