The subject of this disclosure is devices, systems, and uses thereof to treat a plurality of patients for paroxysmal atrial fibrillation. The solution can include delivering a multi-electrode radiofrequency balloon catheter and a multi-electrode diagnostic catheter to one or more targeted pulmonary veins; ablating tissue of the one or more targeted pulmonary veins using the multi-electrode radiofrequency balloon catheter; diagnosing the one or more targeted pulmonary veins using the multi-electrode diagnostic catheter; and achieving at least one of a predetermined clinical effectiveness and acute effectiveness of the method or use based on use of the multi-electrode radiofrequency balloon catheter and the multi-electrode diagnostic catheter in the isolation of the one or more targeted pulmonary veins.

Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.

The invention provides systems and method for the removal of diseased cells during surgery

Apparatus, systems, and methods of controlling energy delivered to electrodes used in electrically and/or thermally induced neuromodulation are provided to improve neuromodulation. In particular, a catheter treatment device having a control algorithm that regulates current or current density delivered to an electrode is provided. The electrode may maintain a known and consistent electrode contact surface area with the vessel. The control algorithm controls energy delivery to provide consistent current or current density to the treatment site, even though the tissue impedance Z may vary from patient to patient and vessel to vessel, and despite changes in impedance of the treatment site during the course of the treatment. The controlled delivery of energy can be used to control and maintain placement of the zone of thermal treatment and reduce undesirable energy delivery to unwanted locations near the treatment site.

The present invention relates to an RF treatment apparatus controlling the RF energy so that the target tissue is maintained within a range of a treatment temperature if the target tissue is determined to have reached the treatment temperature based on the impedance, a method of controlling the RF treatment apparatus, and a skin treatment method using RF energy. The RF treatment apparatus, the method of controlling the RF treatment apparatus and the skin treatment method using RF energy according to the present invention have an effect in that they can improve the accuracy and efficiency of treatment because whether a target tissue corresponds to a treatment temperature is determined based on impedance of the tissue and the volume of the target tissue corresponding to the treatment temperature can be maximized while maintaining the target tissue to the treatment temperature for a predetermined time.

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, the electromechanical ultrasonic system further including an ultrasonic transducer coupled to an ultrasonic blade. A method of delivering energy to the ultrasonic device may include measuring a complex impedance of the ultrasonic blade coupled to the ultrasonic transducer, comparing the measured complex impedance to stored values of complex impedance patterns associated with ultrasonic blade functions, and applying, an algorithm to control a power output to the ultrasonic transducer based on the comparison. The method may further include delivering energy to the ultrasonic device based on a state or condition of an end effector, in which the state or condition of the end effector corresponds to a state of only sealing a tissue or of spot coagulating the tissue.

The present disclosure relates to devices, systems and methods for calculating the amount of energy delivered to tissue during an electrosurgical treatment. The present disclosure provides for a power supply that supplies electrosurgical energy to an applicator via a radio frequency (RF) output stage, a memory that stores at least one energy quantification function that determines an amount of energy delivered to patient tissue by the applicator and a controller that controls the power supply based on a selected power setting and determines the amount of energy delivered to the patient tissue based on the energy quantification function and the selected power setting. The controller counts the energy delivered to the patient tissue based on the selected power setting and a duration of activation time of the applicator at the selected power setting and displays the energy delivered in Joules.

A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature

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.

A safety system for laser treatment, comprising a robotic controller configured to monitor a distance between a treatment device and a treatment area, the robotic controller configured to detect a manual movement of the treatment device and to generate a counterbalancing force in response to the manual movement and wherein the robotic controller is configured to increase the counterbalancing force if the distance between the treatment device and the treatment area is less than a predetermined distance.