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.

Abstract: An electrosurgical system is disclosed, including an electrosurgical generator and an electrosurgical instrument which is or can be connected to the electrosurgical generator, wherein the electrosurgical instrument comprises at least a first activation element and a second activation element and the electrosurgical generator is configured to, on actuation of the first activation element, deliver an electrosurgical therapy signal having a first signal shape to the electrosurgical instrument, and, on actuation of the second activation element, deliver an electrosurgical therapy signal having a second signal shape. The system is characterized in that the first signal shape and the second signal shape are identical, and in that the electrosurgical generator is further configured to only perform success monitoring of a tissue effect achieved by the electrosurgical therapy signal on actuation of the first activation element.

Abstract: In methods for treating a patient, a time varying magnetic field is applied to a patient's body and causes a muscle contraction. The time-varying magnetic field may be monophasic, biphasic, polyphasic and/or static. The method may reduce adipose tissue, improve metabolism, blood and/or lymph circulation. The method may use combinations of treatments to enhance the visual appearance of the patient.

Abstract: A system for monitoring biosignals of a user, including an attachment module configured to secure the system at an inner surface of a garment of the user; a flexible layer coupled to the attachment module, wherein the flexible layer and the attachment module cooperatively define a housing lumen; an electronics subsystem arranged within the housing lumen, the electronics subsystem including a first sensor, wherein the first sensor outputs a first signal; a respiratory sensor, wherein the respiratory sensor outputs a respiration signal, and a processing module that receives the first signal, the respiration signal, and the proximity signal, and generates a processed biometric output based on the first signal and the respiration signals.

Abstract: Methods for treating Blepharitis, Meibomian Gland Dysfunction and Dry Eye Syndrome include thermal massage, thermal debridement, and thermal expression. Particular embodiments include use of handheld devices that provide the thermal therapy to tissue by contacting a surface heated with thermal energy to a patient's tissue. Thermal energy can be continuously provided during operation. In particular embodiments, a handheld device comprises a base assembly operatively connected to a removeable thermal energy applicator. A wide range of thermal applicators may be connected to the base assembly to provide different treatments, including heat application, debridement, and expression of the treated tissue or gland.

Abstract: A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first electrode assembly includes an outer shaft defining a first electrode surface and the second electrode assembly includes an electrode body extending along and electrically isolated from an outer shaft and defining a U-shape in cross section.

Abstract: A medical device, system, and method having a flexible shaft and a multi-core fiber within the flexible shaft. The multi-core fiber includes a plurality of optical cores dedicated for shape sensing sensors, and a plurality of optical cores dedicated for force sensing sensors. A tip assembly can comprise a tip electrode and a coupler comprising at least one fiber support tube center. A distal portion of the coupler can be coupled to a proximal portion of the tip electrode. The tip assembly can further comprise a multi-core fiber comprising a plurality of cores and a fiber support tube. A proximal portion of the fiber support tube can be coupled to the at least one fiber support tube center.

Abstract: A method for controlling an output of an energy module of a modular energy system is disclosed. The modular energy system includes a header module, the energy module, and a secondary module communicably coupled together. The energy module configured to provide an output driving an energy modality deliverable by a surgical instrument connected thereto. The method includes causing the energy module to provide the output driving the energy modality delivered by the surgical instrument; sensing a parameter associated with the secondary module; receiving the parameter as sensed by the secondary module at the energy module; and adjusting the output of the energy module from a first state to a second state according to the received parameter.

Abstract: A hemostatic surgical blade is formed of five symmetrically layers. A martensitic stainless steel core with oppositely disposed faces is bonded to layers exhibiting a high thermal conductivity which, in turn, are supported by buttressing layers of austenitic stainless steel. A thin aluminum layer is deposited on one side of blade blanks to enable chemical reaction bonding to electrically insulative dielectric inks formulated for use with aluminum substrates. The blade is heated by a blade heating circuit that is manufactured by thick-film printing and firing an electrically resistive heating element layer and an electrically conductive leads on an electrically insulative dielectric layer with all layers subsequently covered by a thick-film printed electrically insulative dielectric overcoat. Tissue contacting portions of blade are coated with a very thin non-stick coating.