Abstract: Switches for electrosurgical devices comprising a plurality of electrode sets and related devices, systems, and methods. In some embodiments, a first electrode set may be configured to deliver CUT radiofrequency energy and a second electrode set configured to deliver COAG radiofrequency energy. A switch assembly may be configured to allow for selection between at least three modes, the at least three modes comprising a first, neutral mode, in which the electrosurgical device is configured such that no radiofrequency energy is delivered to either the first electrode set or the second electrode set, a second, CUT mode, in which the electrosurgical device is configured such that CUT radiofrequency energy may be delivered to the first electrode set through the switch assembly, and a third, COAG mode, in which the electrosurgical device is configured such that COAG radiofrequency energy may be delivered to the second electrode set through the switch assembly.

Abstract: The present disclosure relates to a microelectrode for measuring EMG signals of a laboratory microfauna. The present disclosure includes a metal plate with an insulating plate deposited on a surface, a plurality of silicon substrates disposed on the insulating plate, the silicon substrates being electrically connected to the metal plate, covered with an insulator, and adjacent to one another, and a plurality of needle electrodes, each formed on the respective silicon substrates as an integral part thereof, wherein the needle electrodes have the same predetermined length, have a tapered shape from the respective silicon substrates, are spaced apart from each other by a predetermined distance, and wherein a metallic layer is formed on each of the needle electrodes by depositing metal materials, the insulator is formed on the metallic layer, and a portion of the metallic layer at a tip is exposed.

Abstract: Methods for treating dyspnea with therapeutic renal neuromodulation and associated system and methods are disclosed herein. One aspect of the present technology, for example, is directed to methods that block, reduce, and/or inhibit renal sympathetic nerve activity to achieve a reduction in central sympathetic tone. Renal sympathetic nerve activity may be altered or modulated along the afferent and/or efferent pathway. The achieved reduction in central sympathetic tone may carry therapeutic benefits for patients with dyspnea.

Abstract: A joint surgical system includes, a treatment tool, a high-frequency output section which outputs high-frequency energy to the treatment tool, an ultrasonic output section which outputs ultrasonic energy to the treatment tool, a measurement section which measures a temperature of the liquid, and a control section which controls the high-frequency output section to stop output of the high-frequency energy and controls the ultrasonic output section to continue output of the ultrasonic energy when a measurement temperature measured by the measurement section is equal to or higher than a predetermined temperature.

Abstract: Apparatus and methods are provided to concentrate energy delivery in non-superficial target tissue within a trigone region of a human bladder wall to modulate bladder function.

Abstract: A surgical instrument includes a shaft defining a proximal end, a distal end, an interior surface, and an exterior surface. The shaft includes a pair of channels defined in the interior surface thereof towards the distal end of the shaft. A drive member is movably disposed within the shaft. An end effector assembly is pivotably coupled to the shaft towards the distal end of the shaft. A cam pin operably couples the end effector assembly and the drive member such that movement of the drive member relative to the shaft manipulates the end effector assembly. Ends of the cam pin extend outwardly from the end effector assembly and are received within the channels of the shaft to guide movement of the cam pin relative to the shaft in response to movement of the drive member relative to the shaft.

Abstract: A surgical forceps includes a knife bar having a knife translatable between a retracted position, a first extended position, and a second extended position. A trigger is operably coupled with the knife bar such that movement of the trigger between an un-actuated position, a first actuated position, and a second actuated position correspondingly moves the knife. An actuator is movable between locked and unlocked positions such that: with the trigger in the un-actuated or first actuated position and the actuator in the locked position, movement of the trigger to the second actuated position is inhibited; with the trigger in the second actuated position and the actuator in the locked position, the trigger is retained in the second actuated position; and with the actuator in the unlocked position, the trigger is movable between the un-actuated or first actuated position and the second actuated position.

Abstract: Apparatus and methods are provided to concentrate energy delivery in non-superficial target tissue within a trigone region of a human bladder wall to modulate bladder function.

Abstract: The present disclosure is directed to an electrosurgical generator including a resonant inverter having an H-bridge and a tank. The generator also includes a pulse width modulation (PWM) controller configured to output PWM timing signals to the H-bridge. A switch is configured to select a modality from among a plurality of modalities and the PWM controller adjusts a frequency of the PWM timing signals based on the selected modality.

Abstract: A high-frequency treatment instrument including: a sheath formed of a flexible material; an electrode member disposed inside the sheath; a distal-end member having a through-hole through which the electrode member passes; and a liquid supply means supplying liquid towards the front side via a flow path in the sheath, wherein the electrode member includes a rod-shaped electrode portion movably passing through the through-hole, and a large-diameter portion provided at the distal end thereof to have an outer diameter larger than the diameter of the through-hole, the large-diameter portion includes an electrode hole passing therethrough, between the distal-end member and the large-diameter portion, there is provided a buffer member that seals the periphery of a space between the distal-end member and the large-diameter portion.

Abstract: A hernia repair system includes a surgical mesh, one or more electrosurgical instruments, and one or more return electrodes. The one or more electrosurgical instruments are configured to position the surgical mesh adjacent tissue in an underlying tissue site. The one or more return electrodes are positionable adjacent the tissue and externally relative to the underlying tissue site. The one or more electrosurgical instruments and the one or more return electrodes are configured to selectively apply an effective amount of pressure and electrosurgical energy to the surgical mesh such that upon the application of electrosurgical energy and pressure, the surgical mesh seals to one side of the tissue at the underlying tissue site.

Abstract: Embodiments of this invention relate to a flexible, multifunctional apparatus for delivering electromagnetic energy to a target surface. The apparatus may be used in a variety of applications and environments, including but not limited to, medical therapies and treatments. The apparatus comprises at least one primary radiation source, in some embodiments an array of light-emitting diodes, and is capable of emitting electromagnetic radiation in the range from 800 to 950 nanometers. The apparatus comprises a moveable arm for positioning the radiation source relative to the target surface. The apparatus is useful for photothermal therapy in the treatment of medical conditions, including cancer.

Abstract: In a surgical treatment instrument, a probe extending in a longitudinal axial direction is inserted through a sheath, and each of sheath components, in the sheath, is divided from a neighboring sheath component at a dividing plane along the longitudinal axial direction. A flow of liquid to a proximal side in an inside of the sheath is prevented by a first seal portion. In a divided part between each of the sheath components and the neighboring sheath component, liquid-tight is kept by the second seal portion, and thereby a flow of the liquid to the proximal side is prevented.

Abstract: A switch detector of an energy treatment device detects a switch from a gradually decreasing state to a gradually increasing state on the basis of a detection result of acoustic impedance. In a state where ultrasonic electric energy and high-frequency electric energy are simultaneously output from an energy source, a controller stops an output of the ultrasonic electric energy on the basis of a fact that the switch of the acoustic impedance from the gradually decreasing state to the gradually increasing state is detected, and stops an output of the high-frequency electric energy on the basis of the fact that high-frequency impedance reaches a set threshold.

Abstract: Various forms are directed to systems and methods for dissection and coagulation of tissue. A surgical instrument includes an end effector configured to dissect and seal tissue at a distal end thereof, and a selector switch having a plurality of surgical modes. A generator is electrically coupled to the surgical instrument and is configured to deliver energy to the end effector. Each surgical mode of the selector switch corresponds to an algorithm for controlling the power delivered from the generator to the end effector, and each algorithm corresponding to the plurality of surgical modes is configured to allow a user to control the power output level of the generator.

Abstract: A method of ablating endometrial lining tissue, includes delivering radiofrequency power to the endometrial lining tissue of a uterine cavity, and modulating the delivered power so that a measured impedance of the endometrial lining tissue tracks a target impedance as a function of time, wherein the target tissue impedance is derived from a function that approximates a preferred endometrial lining tissue ablation impedance curve, scaled based upon a measured impedance of the endometrial lining tissue after RF power has been delivered for a predetermined initial time period.

Abstract: An electrosurgical pencil for use in performing surgery on a surgical site includes a main body forming a handle grippable by user and having open front and rear ends. The pencil has a vent tube open at its forward end, and slidably mounted in the body. The tube is adjustable independently from a retracted position to various extended positions. An elongate electrode is mounted in the tube and independently slidable therein. The electrode is adjustable manually in its longitudinal direction from a retracted position to extended positions. A first conducting strip can be mounted in the vent rube in contact with the electrode. A second conducting strip can be mounted in the main body and is in sliding contact with the first strip in order to provide power to the electrode.

Abstract: A surgical instrument includes a housing, a shaft extending from the housing, and an end effector assembly that is disposed at a distal end of the shaft. The end effector assembly includes a tubular portion, a connection arm, and a toolbox. The tubular portion defines a lumen and the connection arm is extendable from the lumen. The toolbox has a micro-tip that is configured to be selectively secured to a connection tip of the connection arm. The toolbox has a transport configuration where the toolbox is disposed within the lumen and a deployed configuration where the toolbox is disposed entirely outside of the lumen.

Abstract: A method and system for automated and semi-automated predictable, consistent, safe, effective, and lumen-specific and patient-specific cryospray treatment of airway tissue in which treatment duration is automatically set by the system following entry of patient information and treatment location information into the system by the user, and treatment spray is automatically stopped by the system when the automatically selected treatment duration has been achieved as determined by the system.

Abstract: Epicardial fat pad ablation is conducted using a catheter inserted through the chest wall, using ultrasound ablation, or using a catheter fitted with a directional ultrasound transducer and capable of being aligned with the epicardium. The epicardial fat pad locations are determined using noninvasive imaging methods, or using electrical maps. These locations are then displayed on maps or images of the heart, and thus targeted for minimally invasive or non invasive therapy. The methods of the present invention are less invasive than conventional methods of ablation, and permit flexible access to substantially any point on the epicardium.