A coating system for coating an Insertable Medical Device (IMD) with at least one drug, in which the coating system comprises: a spray nozzle unit for coating the IMD with the at least one drug; a protection tube capable of containing the IMD, in which the IMD has a guide element, a covering element and a support element; and a mandrel accessory capable of containing the protection tube containing the IMD, in which the guide element is located within the protection tube and one end of the support element is connected to a support to expose the covering element to the spray nozzle unit, in which the mandrel attachment comprises a circular disk capable of containing the protection tube and rotating the protection tube and the IMD, thereby rotating the protection tube and the IMD, the element of The coating of the IMD is coated with at least one drug by the spray nozzle unit, and in which the IMD is a pre-wound stent assembly, the guide element is a catheter tube, and the coating element is a stent pre-wound on a balloon in which the IMD is guided through the protection tube so that the guide element is located within the protection tube and one end of the support element and the coating protrudes from the protection tube, so that the coating element is exposed to the spray nozzle unit, and in that the coating system further comprises a mobile platform having the spray nozzle unit mounted thereon, in that the mobile platform allows the spray nozzle unit to move in a plurality of directions to coat the at least one drug in the IMD, in which the mobile platform is controlled using a Computerized Numerical Control (CNC), and in which the Protective tube containing the IMD is received by the mandrel accessory.Un sistema de recubrimiento para recubrir un Dispositivo Médico Insertable (IMD) con al menos un fármaco, en que el sistema de recubrimiento comprende: una unidad de boquilla de pulverización para recubrir el IMD con el al menos un fármaco; un tubo de protección capaz