Successful in-vivo experiment in May 2019. Two Cor/log Probe 1P were implanted into a freely moving pig. Zero drift of the pressure baseline over 29 days. Measurement of S1 and S2 heart sounds due to high frequency resolution of the probe. This can be used to identify the a- and v-wave of the central venous pressure which can be used to diagnose tricuspid valve regurgitation. Continuous data transfer during this time to Cor/log Connect and Cor/log App.