Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and/or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and/or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

Aspects of the present disclosure are presented for managing simultaneous outputs of surgical instruments. In some aspects, methods are presented for synchronizing the current frequencies. In some aspects, methods are presented for conducting duty cycling of energy outputs of two or more instruments. In some aspects, systems are presented for managing simultaneous monopolar outputs of two or more instruments, including providing a return pad that properly handles both monopolar outputs in some cases.

Aspects of the present disclosure are presented for managing simultaneous outputs of surgical instruments. In some aspects, methods are presented for synchronizing the current frequencies. In some aspects, methods are presented for conducting duty cycling of energy outputs of two or more instruments. In some aspects, systems are presented for managing simultaneous monopolar outputs of two or more instruments, including providing a return pad that properly handles both monopolar outputs in some cases.

An electrode for an electrosurgical unit is used for ablating and necrosing a living tissue by RF electric energy. The electrode can be a hollow electrode formed in an elongated hollow tube shape, including a non-insulating region of a predetermined length formed on one side, and an insulating region formed on an outer surface other than the non-insulating region. The electrode further can include a saline solution circulation structure that supplies pressurized saline solution for cooling a living tissue which is in contact with the hollow electrode from the outside of the living tissue to the inside of the hollow electrode, and one or more saline solution discharge holes formed in the non-insulating region of the hollow electrode to discharge some of the circulating pressurized saline solution to the living tissue.

The present disclosure provides electroporation systems and methods of preconditioning tissue for electroporation therapy. An electroporation generator includes an electroporation circuit, a preconditioning circuit, and a controller. The electroporation circuit is configured to be coupled to a catheter for delivering the electroporation therapy to target tissue of the patient. The electroporation circuit is further configured to transmit an electroporation signal through the catheter. The preconditioning circuit is configured to be coupled to a preconditioning electrode for stimulating skeletal muscle tissue of the patient. The preconditioning circuit is further configured to transmit a preconditioning signal to the preconditioning electrode. The controller is coupled to the electroporation circuit and the preconditioning circuit, and is configured to synchronize transmissions of the electroporation signal and the preconditioning signal such that the preconditioning signal is transmitted prior to transmission of the electroporation signal.

The present disclosure provides electroporation systems and methods of preconditioning tissue for electroporation therapy. An electroporation generator includes an electroporation circuit, a preconditioning circuit, and a controller. The electroporation circuit is configured to be coupled to a catheter for delivering the electroporation therapy to target tissue of the patient. The electroporation circuit is further configured to transmit an electroporation signal through the catheter. The preconditioning circuit is configured to be coupled to a preconditioning electrode for stimulating skeletal muscle tissue of the patient. The preconditioning circuit is further configured to transmit a preconditioning signal to the preconditioning electrode. The controller is coupled to the electroporation circuit and the preconditioning circuit, and is configured to synchronize transmissions of the electroporation signal and the preconditioning signal such that the preconditioning signal is transmitted prior to transmission of the electroporation signal.

Systems and methods for separating native heart valve leaflets attached together by a fixation device. Systems including an elongate shaft having a proximal end portion, a distal end portion and a longitudinal axis extending therebetween, the elongate shaft configured for transvascular delivery of the distal end portion to a native heart valve. At least one arm extending from the distal end portion, and a cutter disposed along at least one of the distal end portion and the at least one arm. The at least one arm is configured to extend through an orifice defined between native heart valve leaflets attached together by a fixation device to position the cutter against one of the native heart valve leaflets adjacent the fixation device, the cutter configured to cut through native heart valve leaflet tissue.

Systems and methods for separating native heart valve leaflets attached together by a fixation device. Systems including an elongate shaft having a proximal end portion, a distal end portion and a longitudinal axis extending therebetween, the elongate shaft configured for transvascular delivery of the distal end portion to a native heart valve. At least one arm extending from the distal end portion, and a cutter disposed along at least one of the distal end portion and the at least one arm. The at least one arm is configured to extend through an orifice defined between native heart valve leaflets attached together by a fixation device to position the cutter against one of the native heart valve leaflets adjacent the fixation device, the cutter configured to cut through native heart valve leaflet tissue.

An active electrode probe for an enhanced control surgery system is disclosed. The probe has a flexible conductor for delivering electrosurgical energy during an electrosurgical procedure, and is adapted for connection to an electrosurgical generator. The probe also has a flexible electrical insulation substantially surrounding the conductor. The probe also has a flexible conductive shield substantially enclosing the electrical insulation, the flexible conductive shield electrically connected to a reference potential, whereby any current which flows in the flexible conductive shield from the conductor is conducted to the reference potential. The flexible conductive shield is formed from a conductive wire.

An arthroscopic cutting probe includes an elongated shaft assembly having a distal end, a proximal end, and a longitudinal axis therebetween. A working end at the distal end of the elongated shaft assembly includes a first active electrode and a second active electrode The shaft assembly is rotates the first electrode relative to the second electrode about the longitudinal axis, and a return electrode is carried on the shaft assembly proximal of the working end. The first and second active electrodes are electrically coupled to each other and electrically isolated from the return electrode.