Abstract: The present disclosure includes an electrosurgical generator that controls treatment energy to be provided in a coagulation mode, where the treatment energy has an adjustable voltage ramp rate which can be set to a ramp rate in a range of voltage ramp rates. The generator receives signals from an instrument over time relating to load impedance. When the load impedance is above a threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and decreases, at the adjustable voltage ramp rate, a voltage of the treatment energy. When the load impedance is below the threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and increases, at the adjustable voltage ramp rate, the voltage of the treatment energy.

Abstract: Forceps treatment systems are described in which a forceps apparatus may generally comprise a first handle and a second handle coupled to one another near or at respective proximal ends. A first paddle may be coupled to the first handle and define a first inner surface, a second paddle may be coupled to the second handle and define a second inner surface which is positioned in apposition to the first inner surface. Furthermore, a debriding member may extend proximally from the first and second handles and reduce and curve gently to define a debriding edge for debriding tissue in proximity to one or more meibomian glands. The forceps apparatus may be used in combination with a heat treatment for treating one or more meibomian glands in a subject.

Abstract: An electrosurgical system includes jaw members having a cutting element extending therebetween and a generator configured to: provide minimal power to the cutting element to maintain a pre-dissection temperature thereof; sense a change in resistance of the cutting element and ramp up power to a dissection temperature; regulate the temperature of the cutting element by regulating power; and terminate power to the cutting element to allow the cutting element to cool to the pre-dissection temperature before providing power back to the cutting element.

Abstract: Devices, systems, and methods are provided in which movement of a tool is controlled based on sensed parameters. In one embodiment, an electromechanical tool is provided having an instrument shaft and an end effector formed thereon. The electromechanical tool is configured to be mounted on an electromechanical arm, and the electromechanical tool is configured to move with or relative to the electromechanical arm and perform surgical functions. A controller is operatively coupled to the electromechanical arm and the electromechanical tool and is configured to retard advancement of the electromechanical tool toward a tissue surface based on a sensed amount of displacement of a tissue surface, a strain on the tissue of the patient, the temperature of the electromechanical tool, or the like.

Abstract: An energy module connectable to a surgical instrument is disclosed. The energy module can include a circuit, which can include a first amplifier and a second amplifier coupled to a port of the energy module to which a surgical instrument is connectable. The first amplifier can be configured to generate a first drive signal at a first frequency range and the second amplifier can be configured to generate a second drive signal at a second frequency range. The circuit can be configured to control the amplifiers to deliver the first drive signal, the second drive signal, and/or a combination of the first and second drive signals to a surgical instrument connected to the port.

Abstract: An instrument including a first arm, a second arm, and a blade. The first arm includes a lumen in communication with a source of irrigation fluid and one or more outlets in communication with the lumen for delivering the irrigation fluid to a surgical site. The instrument is switchable between a first configuration and a second configuration. In the first configuration, the instrument is configured to deliver a first therapy current through a distal end of the first arm, a distal end of the second arm, or both. In the second configuration, a distal end of the blade extends beyond the distal end of the first arm and beyond the distal end of the second arm.

Abstract: A forceps includes a housing, an elongated shaft assembly, and a cam assembly. The housing includes a movable handle pivotally coupled to the housing. The elongated shaft assembly is coupled to the housing and extends distally to support jaw members at a distal end thereof. One or both of the jaw members is selectively moveable relative to the other jaw member between a spaced apart position for manipulating tissue and a closed position for compressing tissue therebetween. The cam assembly is supported in the housing and includes an eccentric cam cable and an eccentric cam. The eccentric cam cable is operably coupled to the movable handle and positioned to rotate the eccentric cam upon movement thereof, wherein rotation of the eccentric cam reduces an amount of force on the movable handle required to move the jaw members to the closed position to compress tissue disposed between the jaw members.

Abstract: An electrosurgical electrode for coagulating and cutting tissue includes a main body fabricated from a conductive material, and a conductive blade extending inwardly from an inner surface of the main body. The blade has an edge configured to concentrate RF for cutting tissue.

Abstract: The present application relates to a monopolar electrode and a bipolar electrode that are used for electrosurgical instruments. The monopolar electrode and the bipolar electrode each include a conductive non-stick coating which is made by doping graphene and/or metal particles in a PTFE (polytetrafluoroethylene) base material. The present application also relates to a preparation method of a composite material forming the conductive non-stick coating. Since PTFE itself can prevent adhesion, the conductivity of PTFE can be improved by doping various conductive materials. After the composite material coating formed thereby covers a metal electrode, it is ensured that the working region and work energy of an electrotome are not reduced, the electrical conductivity of the electrode can be guaranteed, not only the blood coagulation effect of the electrotome is not affected but also the adhesion of the electrode on a tissue can be reduced. Furthermore, the structure is simple, and manufacturing is easy.

Abstract: An end effector assembly includes a clevis having first and second spaced-apart arms, a ceiling, a floor, pivot and cam pins extending between the arms, and first and second jaw members. Each jaw member includes a proximal portion and a distal body extending distally from the clevis. The proximal portion of the first jaw member includes a first flag disposed between the first and second arms of the clevis, operably coupled to both the pivot pin and the cam pin, extending vertically at least partially through openings defined within the ceiling and floor. The proximal portion of the second jaw member includes second and third flags disposed between the first and second arms of the clevis in spaced-apart relative to one another and between the ceiling and the floor. The second and third flags are fixedly engaged to the clevis.

Abstract: The invention relates to a modular electrosurgical system for using electromagnetic (EM) radiation, such as radio frequency (RF) or microwave EM radiation, to treat biological tissue. In one example, control of the modules is centralised in a remote computing device which can communicate wirelessly with the modules of the system. In one example, different optional modules may be combined together with core modules to provide the system with different electrosurgical capabilities.

Abstract: An electrosurgical system includes an instrument, an RF energy generator, and two ground pads. The instrument includes an electrode and a conductive shield that is configured to collect a capacitive coupling current that is induced by the application of RF energy to tissue by the electrode. A first electrical lead couples the first ground pad with the ground return of the conductive shield and the generator. The ground return is configured to divert a first portion of the capacitive coupling current to the generator via the first electrical lead. A second electrical lead couples the second ground pad with the ground return of the conductive shield and the generator. The ground return is configured to divert a second portion of the capacitive coupling current to the generator via the second electrical lead. The first and second portions of the capacitive coupling current are substantially equal.

Abstract: A colpotomy device having a tissue treatment assembly for performing a hysterectomy is provided. The tissue treatment assembly comprises an elongated body defining a longitudinal axis and an end effector coupled to a distal portion of the elongated body. The end effector can be offset from and rotatable about the longitudinal axis. The tissue treatment assembly also has an axial first electrical contact coupled to the end effector, where the axial first electrical contact is affixed to and rotatable with the end effector. Moreover, the tissue treatment assembly includes a circumferential second electrical contact that can be arranged to contact the axial first electrical contact throughout a rotation of the end effector about the longitudinal axis.

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to an electrosurgical surgical tip that includes a conductive and low-profile cutting surface to provide high current density radiofrequency energy with minimal thermal damage to surrounding tissues. For example, an electrosurgical tip of the present disclosure may include a ring of conductive material sputter-coated around a distal opening of a non-conductive base component and a strip of conductive material sputter-coated along a longitudinal axis of the non-conductive base component.

Abstract: A bipolar ablation device for treatment of a stenosis within an implanted metallic stent may include an elongate shaft slidably disposable within an endoscope, the elongate shaft including at least one electrode configured to form a first pole of the bipolar ablation device, and an electrode lead slidably disposable within the endoscope. The electrode lead may be configured to electrically engage the implanted metallic stent to form a second pole of the bipolar ablation device. The elongate shaft may be positionable within a lumen of the implanted metallic stent.

Abstract: An electrosurgical pencil includes a body. The body includes a track extending along a distal end of the body. A treatment blade extends from the distal end of the body and is electrically connected to a first potential of a source of electrosurgical energy. The treatment blade is configured to treat tissue upon activation thereof. A protective guard is configured to slide along a track between a first position concealing a distal end of the treatment blade and a second position exposing the distal end of the treatment blade. A return electrode is disposed on an exposed surface of the protective guard. The return electrode is electrically connected to a second potential of the source of electrosurgical energy. A biasing member includes a first end operably connected to the distal end of the body and a second end operably connected to the protective guard.

Abstract: The disclosure provides various embodiments of catheters having articulable ends that can be used for various procedures. Embodiments of methods are also provided that can be performed with catheters in accordance with the present disclosure.

Abstract: A method for treating emphysema with a condensable vapor includes creating a plurality of collateral channels through the airway walls, and delivering the condensable vapor to the airways. The condensable vapor flows to the diseased parenchymal tissue through the airways and the collateral channels. Condensable vapor to contact the tissue heats the tissue, reducing it in volume. Apparatuses are described to create the openings and ablate the lung tissue.

Abstract: The present is directed to improved systems, methods, and devices for providing skin cooling treatment. The skin cooling treatment system can include a mechanical arm and a cryospray applicator coupled to a distal end of the mechanical arm. The skin cooling treatment system can include a processor that can receive imagery of a portion of skin of a patient for receiving a skin cooling treatment and automatically identify boundaries from the received imagery to designate portions of the skin of the patient for receiving the skin cooling treatment. The processor can determine an instantaneous treatment footprint and can generate a treatment path based on the treatment footprint. The processor can control the cryospray applicator to deliver the skin cooling treatment to the skin according to the treatment path.

Abstract: 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.