Abstract: A method includes receiving a firmware package including at least one firmware element having a security revision number. The security revision number of the at least one firmware element is compared to at least one firmware state identifier to determine if the firmware package is a rollback. At least one rollback policy is applied to the firmware package to approve or reject the firmware package when the firmware package is a firmware rollback. The firmware package is installed when the firmware package is approved by the at least one rollback policy.

Abstract: A system for ablating tissue and electrically interfacing with a heart including an electrosurgical instrument, an energy source, and a controller. The instrument includes a shaft maintaining first and second electrodes at a distal section. The electrodes are electrically isolated from one another. The controller controls delivery of energy from the energy source, and monitors electrical signals at the electrodes. The controller is programmed to operate in a monopolar mode and a bipolar mode. In the monopolar mode, the first and second electrodes are electrically uncoupled, and energy from the energy source is delivered to the first electrode in performing an ablation procedure. In the bipolar mode, first and second electrodes are electrically coupled and serve as opposite polarity poles to apply energy to a tissue target site, detect electrical signals at a tissue target site, or both.