The present disclosure relates to an end effector for an electrosurgical instrument, comprising an electrode assembly for delivering a radio-frequency (RF) power signal to a surgical site, the electrode assembly comprising an active electrode, a return electrode, and an insulating element in between the active electrode and the return electrode, the active electrode comprising an aperture which provides access to a suction channel extending through the insulating element to a lumen for carrying fluid from the surgical site, wherein the lumen is at least in part defined by an inner surface of the return electrode, wherein the electrode assembly is configured to conduct electrical current between the active electrode and the return electrode via a first current path through the suction channel when the RF power signal is supplied to the electrodes.

A handheld electrosurgical instrument with jaws at a distal end of a shaft. For moving the jaws, the instrument includes a linkage structure with at least three pivots which are movable relative to the housing and with at least pivot which is fixed to the housing. By this arrangement, one of the movable pivots may move as a substitute for movement of the jaws, and the instrument may therefore always have the same limits for handle movement e.g. also if the jaws are prevented from moving. Additionally, a more uniform closure pressure may be ensured independently on the force applied to the handle.

A lever latching system comprising: a housing; a lever having a latch pin fixedly mounted to the lever, the lever being movably mounted to the housing so that the latch pin moves in an arc; and a latch plate movably mounted to the housing for linear movement with respect to the housing, the latch plate comprising a labyrinth for receiving the latch pin.

An electrosurgical pencil includes a housing having proximal and distal ends, the proximal end adapted to connect to an energy source and the distal end adapted to receive an end effector assembly therein, the end effector assembly defining a surface area along a length thereof. An activation switch is operably associated with the housing and is configured to deliver electrosurgical energy to the end effector assembly upon actuation thereof. An air control valve is operatively coupled to the activation switch and is configured to simultaneously deliver a gas from a gas source to the surface area around the end effector upon actuation of the activation switch. One or more vents are defined in the distal end of the housing and are configured to direct the gas towards the surface area of the end effector.

A system for use with multiple electrodes coupled to respective spines of a probe includes multiple switches connected to the electrodes and configured to short different respective first subsets of the electrodes to each other and different respective second subsets of the electrodes to each other per different respective settings of the switches. The system further includes a processor configured to control the switches so as to alternate through the settings and, for each of the settings, cause a power generator to apply a voltage between the shorted first subset and the shorted second subset while the probe is deployed within a body of a subject. Other examples are also described.

An electrosurgical generator includes: a power supply configured to output a direct current; a current source coupled to the power supply and configured to output source current based on the direct current, and a power converter coupled to the current source, the power converter including at least one power switching element operated at a switching waveform. The power converter is configured to generate a converted waveform based on the source current. The electrosurgical generator also includes a controller coupled to the power converter and configured to modulate the switching waveform and a snubber circuit coupled to the current source and the power converter. The snubber circuit is configured to return the voltage at the at least one power switching element to zero after the power converter generates at least a portion of the converted waveform.

Forceps including a housing, a first body, a second body and a drive shaft. The first body has a passageway extending therethrough. The drive shaft extending through the passageway and connected to the first body such that the first body and the drive shaft are slidable with respect to the housing to drive jaws located at a distal portion of the drive shaft between an open position and a closed position. The second body having a second passageway. The drive shaft extending through the second passageway such that the second body is guided by the drive shaft and is slidable relative to the first body and the drive shaft to displace a blade shaft between a retracted position and an extended position.

Aspects of the present disclosure are presented for managing simultaneous outputs of surgical instruments. In some aspects, methods are presented for synchronizing the current frequencies. In some aspects, methods are presented for conducting duty cycling of energy outputs of two or more instruments. In some aspects, systems are presented for managing simultaneous monopolar outputs of two or more instruments, including providing a return pad that properly handles both monopolar outputs in some cases.

Approaches for percutaneous blepharoplasty are provided. An electrosurgical device includes: a hand-piece; a tip connected to the hand-piece; and two needles extending from a distal end of the tip. The hand-piece is structured and arranged to connect to an electrical energy source, and to convey electrical energy from the electrical energy source to the needles in a percutaneous blepharoplasty procedure.

A forceps having a first jaw and a second jaw, where at least one of the first and second jaws is capable of moving between an open position and a closed positions. The forceps including an inner shaft located within an outer shaft and extending along the longitudinal axis, and a drive bar coupled to and extending distally from the inner shaft. The drive bar including a pair of drive bar struts extending from a distal portion of the inner shaft and positioned laterally inward of at least one of first and second set of flanges of the first and second jaws. A drive pin is securable to the pair of drive bar struts and the drive bar is translatable within the outer shaft to translate the drive pin to move the first jaw and/or the second jaw between open and closed positions.