Basic principle of cryoanalgesia is the exact localisation of the affected nerve by visual control and electrical stimulation. A two minute icing of approx. – 65° C follows. Histologically, freezing causes disintegration of the nerve axon and break down of the myelin sheath but leaves the connective tissue intact. Over time, the nerve is able to regenerate along its original pathway and normal performance returns.

When the anaesthesia fades, the irritation is often settled and no further treatments are required. A new treatment is possible at any time without any risk for the patient.

The thermal action of a high-frequency current of about 300 kHz – 2 MHz has already been used for decades in highfrequency surgery for cutting and removing tissue during surgical procedures. High-frequency current causes an electrolyte shift. This ion movement causes a marked development of heat in the tissue close to the electrode. Radio frequency thermo lesion enables the use of particularly thin intruments for a very precise result.