Apparatus (1) Medical comprising: at least one interface (30) user to allow adjusting a plurality of parameters pertinent to elfuncionamiento of said apparatus or pertinent to a process to be performed by said apparatus including lainterfaz user at least one display (31), the screen comprising a touch screen several sensors (16, 27, 21, 22, 29) for detecting actual values of said parameters a system (18) for controlling operation of said medical apparatus, the sistemade control said sensors being connected, responding to a users actions in said user interface, and estandoprogramado for executing the following steps: representing on said display one plurality of indications (37), interacting each with a parámetrocorrespondiente and comprising a rim (45) indicating that delimits an area (45a) selection indication, allowing selection of an indication of said plurality of indications detecting a touch area deselecting corresponding to identify the parameter a user intends to modify that allow setting a new setting value for the parameter receiving from at least one of the sensors a measure of the actual value for said parameter represent the area selection indication indicating both the actual value and the setting value for corresponding elparámetro, wherein the control system is programmed to represent the time in the selection area indication ofa same parameter the following regions: - a first region representing the set value a user has set for the parameter, a second region, distinct from the first region, which represents the actual value for the same parameter, the control system being programmed to represent the first region according to at least one respective first condiciónde representation and a second condition visually differentiated respective representation of laprimera condition.Aparato (1) médico que comprende: al menos una interfaz (30) de usuario para permitir ajustar una pluralidad de parámetros pertinentes para elfuncionamiento de dicho aparato o
