The present invention provides a fully implantable device for monitoring at least one physiological parameter of an individual. The device comprises at least one sensor configured to generate a sensor signal representative of the physiological parameter, where each sensor has at least one electrode and at least one membrane adapted to separate the electrode from a medium external to the device. The device also has a programmable chip configured to receive, process and transmit the sensor signal, and a housing adapted to accommodate the sensor and the programmable chip. The present invention further includes a transponder for working with the device and a kit including the device and a means for implantation of the device. Furthermore, the present invention includes a system for monitoring at least one physiological parameter of an individual, the system including a fully implantable device.
