Irradiation device (10, 20, 30, 60, 70) for insertion into a body orifice to provide terapiao photodynamic diagnosis, the device (10, 20, 30, 60, 70) comprising: a housing (1, 21, 31, 61, 71a, 71b) adapted to be inserted and secured in the opening, the housing containing a system of lámparaLED (12, 25, 35, 45, 62, 72) and a power source (41, 68, 78) to power the LED system (12, 25,35, 45, 62, 72) lamp, and the housing (1, 21, 31, 61, 71a, 71b) a treatment surface (2, 22, 32, 63 comprising , 73), the LED system (12, 25, 35, 45, 62, 72) being designed to emit radiation from the surface detratamiento wherein the device is operable independently while inside the hole and has front unextremo and a rear end, with the rear end the end of the device, in use, is máspróximo at the entrance of the hole, characterized in that the housing (1, 21, 31, 61, 71a, 71b) comprises unaporción flexible outer (7, 27, 37, 67, 77) forming a continuous surface which can, in use, adjust formapara configure a secure fit within the walls of the hole extending the outer portion (7, 27, 37, 67,77) out of the treatment surface (2, 22, 32, 63, 73) and towards the rear end of the device (10, 20,30, 60, 70) and tapering outwardly so that the widest section of the outer portion (7, 27, 37, 67,77) is located rearwardly of the treatment surface (2, 22, 32, 63, 73), whereby the housing (1, 21, 31,61, 71a, 71b) is adapted to be completely insertable and ASEG urable the hole.Dispositivo de irradiación (10, 20, 30, 60, 70) para su inserción en un orificio del cuerpo para proporcionar terapiao diagnóstico fotodinámicos, comprendiendo el dispositivo (10, 20, 30, 60, 70): un alojamiento (1, 21, 31, 61, 71a,71b) adaptado para poder insertarse y asegurarse en el orificio, conteniendo el alojamiento un sistema de lámparaLED (12, 25, 35, 45, 62, 72) y una fuente de potencia (41, 68, 78) para alimentar el sistema de lámpara LED (12, 25,35, 45, 62, 72), y comprendiendo el alojamiento (1, 21, 31, 61, 71a, 71b) una su
