A medical apparatus comprising at least a medical machine for fluid treatment settable in a plurality of different operating configurations, exhibiting: - means for treating a fluid including a predetermined number of sensors for detecting functioning parameters of the medical machine and a predetermined number of actuators for intervening in order to modify functioning parameters of the medical machine; - a control unit at least for sending command signals and for receiving information from the means for treating a fluid, the control unit sending command signals to the actuators and/or receiving data from the sensors in order to set and/or calculate the operating configuration of the machine; - a device for entering data to be supplied to the control unit for enabling a user to generate the command signals for the means for treating a fluid; - a display for viewing at least a part of the information received from the control unit relating to the means for treating a fluid; - remote access and control means for enabling a remote unit to take control of a predetermined number of functions of the medical machine for treatment of a fluid, the remote access and control means being configured to receive in input the at least an identification datum coming from a remote unit, the control unit of the medical machine being configured to selectively enable and/or inhibit the remote access and control means from taking control of at least a part of the predetermined number of functions of the medical machine according to the received identification datum; characterised in that the control unit of the medical machine is further configured to selectively inhibit the remote access and control means from taking and/or maintaining control of at least a part of the predetermined number of functions of the medical machine according to the operating configuration of the machine. - means for treating a fluid including a predetermined number of sensors for detecting functioning parameters of the medical machine and a predetermined number of actuators for intervening in order to modify functioning parameters of the medical machine; - a control unit at least for sending command signals and for receiving information from the means for treating a fluid, the control unit sending command signals to the actuators and/or receiving data from the sensors in order to set and/or calculate the operating configuration of the machine; - a device for entering data to be supplied to the control unit for enabling a user to generate the command signals for the means for treating a fluid; - a display for viewing at least a part of the information received from the control unit relating to the means for treating a fluid; - remote access and control means for enabling a remote unit to take control of a predetermined number of functions of the medical machine for treatment of a fluid, the remote access and control means being configured to receive in input the at least an identification datum coming from a remote unit, the control unit of the medical machine being configured to selectively enable and/or inhibit the remote access and control means from taking control of at least a part of the predetermined number of functions of the medical machine according to the received identification datum;