DEVICE AND METHOD AND FOR THE IN-VIVO, NON-INVASIVE MEASUREMENT OF THE OSMOLALITY OF BIOLOGICAL TISSUE FLUID, UTILIZING REFLECTION OF MULTI-FREQUENCY ELECTROMAGNETIC WAVES IN THE RADIO-FREQUENCY RANGE
A system (2) for non-invasive measurement of the osmolality of biological tissue fluid in a living specimen (3) includes an RF generator for generating RF signals and transmitting these via an appropriate antenna towards tissue of a living specimen. An RF receiver (8) is coupled to another antenna, for receiving and measuring the intensity the RF signals reflected from aforementioned tissue, and for feeding said intensity to a processor (10) for comparison of relative reflection intensities of at least two RF frequencies impinging on the tissue with a reference reflection ratio signal.