Device (1, 30, 32, 38, 47, 55) that is intended to apply current pulses to predefined body tissue and that can be placed on body surfaces of organisms, with at least one unit (9, 27, 33, 39, 48) of penetration having at least one electrode (16, 31, 36, 42), the penetration unit (9, 27, 33, 39, 48) being provided for, once the device (1, 30, 32 , 38, 47, 55) on the body surface of an organism (22), penetrate the organism (22) and occupy a final position in which the electrode (16, 31, 36, 42) is in contact with the tissue body (25) of the organism (22), at least one position detection device (13) that is intended to detect a position of at least a part of the device (1, 30, 32, 38, 47, 55) placed on the body surface in relation to at least a part of the body tissue (25), and at least one means (8) for emitting signals to emit signals, characterized in that the equipment (13) position detection is also provided to check the position detected as to whether it is suitable for bringing the penetration unit (9, 27, 33, 39, 48) to the final position, recognizing the equipment (13) of position detection as appropriate the position detected if a path from an injection point provided for the penetration unit (9, 27, 33, 39, 48) to the body tissue (25) is free of obstacles, and the device ( 1, 30, 32, 38, 47, 55) prepared for, based on a test result of the detected position, emit at least one signal.Dispositivo (1, 30, 32, 38, 47, 55) que está destinado a aplicar impulsos de corriente a tejido corporal predefinido y que puede colocarse sobre superficies corporales de organismos, con al menos una unidad (9, 27, 33, 39, 48) de penetración que presenta al menos un electrodo (16, 31, 36, 42), estando la unidad (9, 27, 33, 39, 48) de penetración prevista para, una vez colocado el dispositivo (1, 30, 32, 38, 47, 55) sobre la superficie corporal de un organismo (22), penetrar en el organismo (22) y ocupar una posición final en la que el electrodo (16, 31, 36, 42) está en contacto con
