A surgical device (10) includes a handle (122) and a rotatable assembly (130) coupled and rotatable with respect to the handle (122). The surgical device (10) further includes a switch (126) coupled to the handle (122) and having a plurality of positions. A first inductor (1122) is coupled to the switch (126) and a second inductor (1102) is coupled to the rotatable assembly (130). A current signal propagating through the first inductor (1122) and/or a current signal propagating through the second inductor (1102) changes based on a position of the switch (126).

A control device (1) for an electrosurgical instrument (2), in particular a high-frequency sealing instrument, including a fixed handle part (3), a movable handle part (4), an activation element (5) for activating a current flow, in particular a first type, preferably a sealing current, wherein the activation element (5) is or can be adjusted between a deactivation position and at least one activation position when the movable handle part (4) is actuated, wherein, when the movable handle part (4) is actuated, the activation element (5) is or can be adjusted about an axis of rotation (7).

Apparatus, including a catheter configured to be inserted into an organ of a human body. A plurality of electrodes are deployed on the catheter, the electrodes being configured to transfer radiofrequency (RF) ablation energy to tissue of the organ. The apparatus also includes a power supply configured to supply the RF ablation energy at a level of up to 100 W to each of the plurality of electrodes simultaneously, so as to ablate respective sections of the tissue of the organ in contact with the electrodes.

A device for controlling the energy supply to a medical instrument contains the medical instrument and an energy supply device. The energy supply device has at least a first and a second energy supply mode that can be preselected on the energy supply device and which supplies energy to the medical instrument according to a preselected energy supply mode. The energy supply device additionally has a third mode which differs from the at least two energy supply modes, can be preselected on the energy supply device, can detect an actuation of an energy supply operating element arranged on the medical instrument, and can carry out the supply of energy to the medical instrument in the first or second mode based on the detected actuation.

An instrument including working arms and a moveable member. The working arms include a first arm, a second arm, a first electrode located on the first arm, and a second electrode located on the second arm. The moveable member includes a passive circuit element, a first terminal, and a second terminal. The moveable member is moveable to a first position and a second position. In the first position, the first terminal is in electrical communication with the first electrode and the second terminal is in electrical communication with the second electrode so that in the first position an electrical circuit is completed. An impedance is measured of the passive circuit element in the completed electrical circuit. The instrument is adapted to provide a modality based on the measured impedance or a determined position of the moveable member.

An electrosurgical smoke evacuation pencil includes a handle housing having a proximal end portion and a distal end portion, the handle housing defining a first lumen therethrough. The electrosurgical pencil also includes a nozzle disposed within the first lumen and defining a second lumen, the nozzle being movable relative to and within the handle housing and extending proximally past the proximal end portion of the handle housing. The electrosurgical pencil may further include a swivel connector coupled to the distal end portion of the handle housing, the swivel connector configured to couple to a suction source. The electrosurgical pencil includes a hub assembly securedly disposed within the second lumen, the hub assembly including a conductive tube configured to couple to a source of electrosurgical energy, and an electrode slidably disposed within the conductive tube, the electrode being movable relative to and within the conductive tube.

An electrosurgical system including or connected to an output circuitry comprising an electrosurgical device and an electrical cable is modelled during a cable interrogation phase using a transfer matrix in order to determine a leakage capacitance in the electrosurgical system. After the leakage capacitance is assigned or set to a virtual capacitor in the transfer matrix, an output parameter of the electrosurgical system, such as output voltage, output current, output impedance or output electrical power, may be determined by applying an actual input voltage to the output circuitry and measuring a resulting input current, and multiplying the input voltage and measured current by the transfer matrix.

A surgical device which combines cautery and tissue debris conveyance via a combination of suction and an Archimedes screw, the cautery electrode encased within the Archimedes screw, the device comprising a device body housing a motor for rotating the screw, a cannula having an aperture for exposing an instrument, extending from the body portion, and a connector system operatively associated with the body portion, the connector system organized to provide pre-determined relative locations of connection for operably connecting the cannula, a cautery electrode and an Archimedes screw to the device body such the cautery electrode tip is positionable outside the aperture of the cannula and the Archimedes screw is disposed within the cannula in a position for conveying tissue entering the cannula via suction.

A surgical instrument includes an ultrasonic transducer supported by a housing and an elongated assembly extending distally therefrom. The elongated assembly includes a jaw and a waveguide coupled to the transducer and defining a blade having upper and lower tissue-contacting surface and first and second lateral surfaces disposed therebetween that are coated with a material. The jaw is pivotable relative to the blade and includes a structural base having a backspan and first and second uprights extending from the backspan. The jaw further includes a jaw liner supported within the structural base and positioned to oppose the upper tissue-contacting surface with the first and second uprights disposed on either side of the blade. In an ultrasonic mode, ultrasonic energy produced by the transducer is transmitted along the waveguide to the blade. In an electrosurgical mode, electrosurgical energy is conducted between the blade and the first and second uprights.

An electrosurgical apparatus is provided including a housing, a flexible shaft, and a distal tip. The housing may further be coupled to an electrosurgical generator and gas supply. The distal tip of the electrosurgical apparatus may be grasped by a grasping tool, such that the orientation and position of the distal tip relative to the housing may be manipulated to achieve a plurality of positions. The electrosurgical apparatus provides electrosurgical energy and inert gas to an electrode within the distal tip of the electrosurgical apparatus to generate a plasma beam. In one aspect, the electrode is a retractable blade such that the electrosurgical apparatus can be used for mechanical and electrosurgical cutting during surgery when the electrode is in an extended position and for cold plasma applications during surgery when the electrode is in a retracted position.