The group's principal activities are to design, develop, manufacture and market proprietary medical devices. These medical devices detect changes in the elasticity of both small and large arteries. The group currently markets three product versions, the hdi/pulsewave(TM) cr-2000 research cardiovascular profiling system, the cvprofilor(R) do-2020 cardiovascular profiling system and the cvprofilor(R) md-3000 cardiovascular profiling system. The model cr-2000 research system is being marketed worldwide and has a medical device ce mark allowing to be marketed as a medical device in the European market. In the United States the product is marketed for research purpose only and not for screening, diagnosing or monitoring the treatment of patients.