Various exemplary methods, systems, and devices for controlling electrosurgical tools are provided. In exemplary embodiments of methods, systems, and devices provided herein, a control system can be configured to monitor an electrical parameter during end effector closure, e.g., as jaws of an end effector of an electrosurgical tool move from an open position to a closed position. In response to the electrical parameter dropping to a predetermined minimum parameter threshold, the control system can be configured to cause the end effector to open.

A monitoring system may include a processor and display system for displaying results from the monitoring. A user may be in a sterile field away from the processor and display system and selected input devices. A controller may be physically connected to the monitoring system from the sterile field to allow the user to control the monitoring system.

A surgical forceps includes an end effector assembly including a first jaw member and a second jaw member pivotally engaged with one another. At least one of the first or second jaw member is pivotable between a spaced-apart position and an approximated position. The first jaw member includes first and second surfaces on opposite sides thereof. The first surface is disposed in opposition to the second jaw member. The second surface includes a cutting edge disposed on a proximal portion thereof. The second jaw member includes a proximal flange having first and second raised sidewalls defining a proximal channel therebetween. The proximal channel receives the cutting edge of the first jaw member when the first and second jaw members are in the approximated position. The cutting edge of the first jaw member is exposed when the first and second jaw members are in the spaced apart position.

A surgical system includes an active terminal, a return terminal, an active electrode, a return electrode, an active plug configured to connect to the active terminal, and a return plug configured to connect to the return terminal. The return plug is coupled to the return electrode and coupled between the active plug and the active electrode. The return plug is configured to break an electrical connection between the active plug and the active electrode when the return plug is not connected to the return terminal and to establish an electrical connection between the active plug and the active electrode when the return plug is connected to the return terminal.

An electrosurgical system includes an electrosurgical generator having active and return terminals, an electrosurgical instrument including an active electrode, a return instrument including a return electrode, an active plug configured to connect to the active terminal of the generator, a return plug configured to connect to the return terminal of the generator, an active cable extending from the return plug to the electro surgical instrument, a return cable extending from the return plug to the return instrument, a connector cable extending from the active plug to the return plug, and a mechanical switch mechanism disposed within the return plug. The mechanical switch mechanism has a disengaged position in which the active plug is electrically disconnected from the active cable and an engaged position in which the active plug is in electrical communication with the active cable.

An electrosurgical forceps includes first and second shaft members pivotably coupled to one another such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A handle of the first shaft member may be moved against a resilient bias of a spring element.

Surgical systems and methods are provided for controlling actuation and movement of various surgical devices.

A monitoring system may include a processor and display system for displaying results from the monitoring. A user may be in a sterile field away from the processor and display system and selected input devices. A controller may be physically connected to the monitoring system from the sterile field to allow the user to control the monitoring system.

There is provided a medical high frequency treatment device (200). A distal portion of the high frequency treatment device (200) includes a high frequency treatment device knife (100) having a pair of scissors (10) so as to incise a biological tissue. The pair of scissors (10) is configured to be capable of shearing the biological tissue by pivoting in a direction closer to each other. Each of the pair of scissors (10) has a blade surface (13). Each surface of the pair of scissors (10) includes a formation region of a non-conductive layer (insulating film (12)) and an electrode region (19) where the non-conductive layer is not formed on the surface of the blade surface (13). With regard to at least one of the pair of scissors (10), a width dimension of the electrode region (19) in a plate thickness direction of the scissors (10) varies depending on a position of the scissors (10) in a longitudinal direction.

Surgical systems and methods are provided for controlling actuation and movement of various surgical devices.