In medical applications, it is often critical to know the exact location of the needle for injection and biopsy. Physicians can rely on tactile sensing and in some cases ultrasound guidance. Neither of these methods is precise enough. Tactile sensing is based on experience, ultrasound guidance lacks in depth perspective.
The bioimpedance-based needle is designed to fit an electrode, that allows to monitor the location of the needle tip in real time. The continuous bioimpedance data gives constant information about the tissue surrounding the needle. Therefore, the physician knows when the needle has reached its destination, for example, a blood vessel or spinal fluid.
Read more about the smart needle in our case study.
Bioelectrical impedance spectroscopy is a widely used method for examining the properties of different biological structures, whether single cells, tissues or whole organ systems.
Eliko’s impedance spectroscopy is best suited for applications which require fast multi-frequency measurement.
Some examples of other medical devices using bioimpedance measurement are body composition analysers, haemodynamic monitors and respiratory function analysers.