A method for performing an electrosurgical procedure at a surgical site on a patient includes continually sensing electrical and physical properties proximate the surgical site that includes acquiring readings of tissue electrical impedance with respect to time at the surgical site; identifying the minima and maxima of the impedance readings with respect to time; and correlating the minima and/or the maxima of the impedance readings with hydration level and/or hydraulic conductivity in the tissue at the surgical site. The method also includes controlling the application of electrosurgical energy to the surgical site to vary energy delivery based on the step of correlating the minima and/or the maxima of the impedance readings with the hydration level/or and the hydraulic conductivity in the tissue at the surgical site. The process may be an ablation process.

Electrosurgical systems and methods are provided for RF nerve ablation, wherein a control console has multiple RF amplifiers associated with multiple channels, and multiple DC power supplies each dedicated to a corresponding one of the RF amplifiers. Each of a plurality of power supply relays are coupled between one of the DC power supplies and the dedicated corresponding one of the RF amplifiers. A controller is configured to apply switching signals to control each of the power supply relays to selectively switch on and off connections between the DC power supplies and the dedicated corresponding RF amplifiers. The controller may apply control signals to each RF amplifier sequentially, one at a time, to deliver energy separately and independently to each of the corresponding channels. The controller may be configured to apply the switching signals to self-grounding relays to selectively switch on and off connections between the channels and return relays.

A method for adjusting the operation of a surgical suturing instrument using machine learning in a surgical suite is disclosed. The method comprises gathering data during surgical procedures, wherein the surgical procedures include the use of a surgical suturing instrument comprising a suturing needle configured to be mechanically advanced through a suturing stroke, analyzing the gathered data to determine an appropriate operational adjustment of the surgical suturing instrument, and adjusting the operation of the surgical suturing instrument to improve the operation of the surgical suturing instrument.

A medical RF apparatus using an RF pulse and a method of controlling the medical RF apparatus are provided. The medical RF apparatus includes an RF generator, which generates a test pulse for detecting characteristics of tissue, a monitoring unit, which monitors the change in the information on the tissue state while the test pulse is transmitted to the tissue, and a measurement unit, which determines the tissue characteristics of a patient by comparing the values monitored in the monitoring unit with the reference data.

The invention relates to an electrosurgical system for delivering electromagnetic energy at a plurality of frequencies to cause different effects on biological tissue at a treatment site, and in particular to an electrosurgical generator. The electrosurgical generator comprises an electromagnetic signal supply unit for generating microwave energy to be conveyed on each of a plurality of microwave channels, wherein each of the plurality of microwave channels is arranged to convey microwave energy at a different frequency; an output port configured to be connectable to a probe for delivering microwave energy from the plurality of microwave channels; and a signal combiner configured to connect the plurality of microwave channels to the output port, wherein the signal combiner comprises a band stop filter module disposed at a distal end of each of the plurality of microwave channels, wherein the band stop filter module for each microwave channel is configured to block microwave energy at the frequency conveyed on the other microwave channels; and a common signal pathway extending between the output port and a junction at which the plurality of microwave channels are connected.

A controller for a cooled radiofrequency ablation system is configured to sequentially activate a plurality of pump assemblies with a pump activation time delay between the activation of each of the plurality of pump assemblies, measure a temperature drop delay time for each of a plurality of cooled radiofrequency ablation probes, map each respective pump assembly of the plurality of pump assemblies to a corresponding cooled radiofrequency ablation probe of the plurality of cooled radiofrequency ablation probes based on the temperature drop delay time and an activation time of each of the plurality of pump assemblies, and confirm the mapping of each respective pump assembly to the corresponding cooled radiofrequency ablation probe by comparing, for each of the plurality of cooled radiofrequency probes, the measured temperature drop delay time to an expected temperature drop delay time.

Medical apparatus includes an insertion tube configured for insertion into a body cavity of a patient and an expandable assembly connected distally to the insertion tube and comprising electrodes, which are configured to apply electrical energy to tissue within the body cavity. A flexible porous sheath is fitted over the expandable assembly and configured to contact the tissue within the body cavity so that the electrical energy is applied from the electrodes through the sheath to the tissue.

A medical device and a method of operating a medical device, wherein the device includes a medical function assembly, a control assembly, a user interface, and a user information element, configured to display information about a type of the medical device, wherein the control assembly includes a memory element in which different operating parameters for the medical function assembly are storable and wherein the control assembly is configured to control the medical function assembly to perform different medical functions as a function of operating parameters stored in the memory element, wherein the control assembly is further configured to control the user information element to display information about the operating parameters stored in the memory element. The medical device wherein the user information element is configured to continue to reproduce the information after being controlled once by the control assembly, independent of continued control by the control assembly.

An electrosurgical system includes an RF output stage configured to impart RF power between first and second electrodes; measurement circuitry measures current and voltage imparted between the first and second electrodes; a processing circuit calculates power and impedance, based upon the measured current and the measured voltage; the processing circuitry uses a proportional-integral-derivative control loop to control RF power imparted between the electrodes, based upon a selected one of the measured current, the measured voltage, calculated power, and the calculated impedance.

Described herein is a method of treating migraines using PFA ablation technology which includes advancing a pulse field ablation delivery member into a nasal cavity (both unilateral and bilateral) of a patient with the pulse field ablation member in a first collapsed configuration and contacting a surface of a nasal cavity tissue with the pulse field ablation delivery member without penetrating or piercing the nasal cavity tissue surface. The treatment further includes reconfiguring the pulse field ablation delivery member from the first collapsed configuration to an expanded configuration after introducing the pulse field ablation member into the desired position within the nasal cavity, and ablating a target treatment site with the pulse field ablation delivery member in order to treat or prevent at least one of the group of medical conditions, wherein the target treatment site includes at least one nasal nerve tissue or nasal blood vessel with or without contact.