The group's principal activity is to provide state-of-the-art noninvasive treatment solutions for certain urologic and orthopaedic conditions. The products are manufactured by high medical technologies of Switzerland and philips medical systems of Germany and are marketed throughout Europe. The medical devices include the ossatron orthopaedic shock wave system, the lithotron kidney lithotripter and the lithotron ultra endourology workstation. The group operates approximately 80 lithotripsy devices and 58 ossatron machines throughout 40 states in North America. The lithotripsy and orthotripsy services are provided to doctors, medical facilities and directly to patients. On 05-Mar-2004, the group acquired hmt holding, ag.