Miniature implantable telemetry system for pressure-volume cardiac monitoring

We present design architecture and the preliminary experimental results of our wireless telemetry system for cardiac monitoring of blood pressure and volume (PV) vital signals from small animal subjects (e.g., rabbits, rats). The system architecture consists of five main modules stacked in a 3D structure that occupies 2.475cm³ volume and weights 4.01g. The collected data is intended for transmission over the short distances through the living tissue and air within the experimental setup. In the sleep mode measured power consumption is 150μW, while in the fully operational mode the average power consumption is 19.95mW.