CPC A61B 18/1206 (2013.01) [A61B 18/00 (2013.01); A61B 18/1233 (2013.01); A61B 18/14 (2013.01); A61B 18/1442 (2013.01); A61B 18/1445 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00115 (2013.01); A61B 2017/00132 (2013.01); A61B 2017/00154 (2013.01); A61B 2017/00194 (2013.01); A61B 2018/0063 (2013.01); A61B 2018/0072 (2013.01); A61B 2018/0075 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00648 (2013.01); A61B 2018/00654 (2013.01); A61B 2018/00666 (2013.01); A61B 2018/00678 (2013.01); A61B 2018/00684 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/00708 (2013.01); A61B 2018/00714 (2013.01); A61B 2018/00755 (2013.01); A61B 2018/00761 (2013.01); A61B 2018/00767 (2013.01); A61B 2018/00779 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00827 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00886 (2013.01); A61B 2018/00898 (2013.01); A61B 2018/00928 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/1455 (2013.01); A61B 2018/1467 (2013.01)] | 17 Claims |
1. An electrosurgical generator configured to generate and provide a therapeutic signal to biological tissue in electrical communication with a surgical instrument, the surgical generator comprising:
a measurement circuit coupled to a control circuit and configured to measure a reference impedance angle of the biological tissue during an interrogation phase; and
the control circuit in communication with an electrical-energy source, the electrical-energy source electrically coupled to the instrument and configured to generate the therapeutic signal, the control circuit configured to:
control delivery of the therapeutic signal provided to the biological tissue;
compare the measured reference impedance angle with an angle threshold; and
in response to the measured reference impedance angle being greater than the angle threshold;
terminate the delivery of the therapeutic signal; and
generate an error notification signal, wherein the error notification indicates a presence of a conductive foreign body in the biological tissue.
|