Patent ID: 9216050
Filing Date: 2015-12-22
Classification: A61B

Abstract:
1. A method of detecting microbubble formation during a radiofrequency ablation procedure, comprising: transmitting radiofrequency ablation energy between a pair of electrodes, at least one electrode in the pair of electrodes being coupled to a treatment assembly of a medical device; continuously measuring an impedance between the pair of electrodes; continuously measuring a power transmitted to the pair of electrodes by the control unit; comparing a measured power to a predetermined power threshold; comparing, at between approximately six seconds and approximately nine seconds from the beginning of transmission of radiofrequency ablation energy, a measured impedance to a measured minimum impedance; terminating the transmission of radiofrequency ablation energy between the pair of electrodes when: generating an alert indicating at least one of the formation and release of microbubbles proximate the pair of electrodes based on the comparisons.