VACUUM DEVICE A continuous and pulsed vacuum device is also making more versatile the combined device. Vacuum device allows the operator to place the electrodes easier over the patient’s skin without using straps. Also, vacuum therapy is granting local hyperemia and is accelerating metabolic exchanges and blood circulation The unit is provided with three different ultrasound frequencies: 1, 2 and 3 Mhz. Each frequency is usable independently and also combined with the other ones. Each ultrasound frequency is absorbed in a different way from each cellular layer. 1 MHz ultrasound is deeper than the other ones and generally gets in touch with deepest tissues such as tendons and bone or big muscles; 2 MHz ultrasound is a middle frequency and it is useful for treating muscles or small articulations; 3 MHz ultrasound is suitable for treating the most superficial tissues and small joints. All the low and medium frequency currents are available for doing iontophoresis, stimulation, pain therapy by using TENS and diadynamics currents, Trabert, Kotz and interferential bipolar and quadripolar, veno-lymphatic stimulation. On request, it is also possible to provide the unit with the High Voltage generator at 500 V