A forceps includes one or more shafts having first and second jaw members at the distal end portions thereof. The jaw members are moveable from a position wherein the jaw members are spaced relative to one another to one or more approximated positions wherein the jaw members cooperate to grasp and/or seal tissue. A stop member is disposed on the first jaw member and complements a corresponding step feature defined within the second jaw member. The jaw members are tip biased at their distal surfaces such that when the jaw members move from the spaced position to a first approximated position, the distal surfaces cooperate to grasp tissue. The jaw members are further movable from the first approximated position to a second approximated position wherein the stop member bottoms out within the step feature and biases the distal surfaces to form a gap therebetween for sealing purposes.

A surgical instrument with insulating grips is described. The grips can include internal metal frames that are arranged to limit electrical conductivity within the grips and to other components that attach to a grip, such as a ratchet. The internal metal frames can be constructed of multiple internal portions, spatially separated from one another to interrupt electrical conductivity between the internal portions, but coated with an insulating overmold to provide mechanical coupling between the portions. An internal metal frame can also include a notch, cut-out, or other region partially surrounded by the structure of the internal metal frame, which can be coated with an insulating overmold to define a region of the grip that does not have an internal metal frame therein but which can include an attachment point for mechanically coupling other components while limiting electrical coupling between the metal frame and the other components.

A surgical tool that includes a drive housing, an elongate shaft that extends from the drive housing, and an end effector arranged at a distal end of the elongate shaft and having a jaw and a jaw holder that secures the jaw. A wrist couples the end effector to the elongate shaft and includes a distal clevis having an axle that rotatably mounts the jaw holder to the distal clevis. An electrical conductor extends from the drive housing and supplies electrical energy to the jaw via a supply conductor. At least one of the jaw holder and the axle is made of a non-conductive material that insulates the distal clevis from the electrical energy provided to the jaw.

A treatment tool for an endoscope includes an elongated cylindrical flexible sheath, an operation wire inserted into a cylinder of the flexible sheath and movable forward and backward in an axial direction within the cylinder by being operated to be pushed and pulled, a treatment unit provided in a distal end of the operation wire and performing treatment of an affected area, an operation unit for operating the operation wire to move forward and backward, and a liquid injection unit arranged between the flexible sheath and the operation unit and including a liquid injection port for supplying liquid to the treatment unit. The liquid injection unit and the operation unit are connected by screw fastening, and a locking mechanism is provided for temporarily fixing the screwed state, thereby preventing a screwed portion between the operation unit and the connection unit from being loosened and disconnected by rotational operation during treatment.

An electrically energized medical instrument uses one or more drive cables to both actuate mechanical components of a wrist mechanism or an effector and to electrically energize the effector. Electrical isolation can be achieved using an insulating main tube through which drive cables extend from a backend mechanism to the effector, an insulating end cover that leaves only the desired portions of the effector exposed, and one or more seals to prevent electrically conductive liquid from entering the main tube. Component count and cost may be further reduced using a pair of pulleys that are shared by four drive cables.

An electrosurgical forceps includes first and second shaft members pivotably coupled to one another via a pivot member 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 knife is translatable between retracted and extended positions. The knife has a stop to prevent distal movement of the knife beyond the extended position.

A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed.

An electrosurgical system including an electrosurgical generator and an adapter connected to the electrosurgical generator. The adapter is configured to selectively transmit one or more energy outputs from the electrosurgical generator to an end effect device. At least one of the electrosurgical generator and the adapter are configured to be controlled by one or more control device. An electrosurgical system can include a control device connected to an electrosurgical generator. The control device can be configured to selectively transmit control instructions to the electrosurgical generator. The control device can be configured to receive a control signal from a user. An electrosurgical apparatus can include a pair of blades configured to deliver at least mechanical and electrical energy to tissue. Each blade can include a portion configured to protrude to the other side of a central plane. An electrosurgical apparatus can include a first tip comprising a first tip central plane and a second tip comprising a second tip central plane, wherein the electrosurgical apparatus has a first configuration wherein the first and second tips operate as forceps, and wherein the electrosurgical apparatus has a second configuration wherein the first and second tips operate as scissors. The electrosurgical apparatus can have restricted movement in the forceps configuration and limited shearing movement in the scissors configuration.

The present invention relates to a connecting device and to a monopolar cable for surgical instruments operable in a monopolar and bipolar manner, especially for high-frequency surgery, and a corresponding surgical instrument and surgical system. An electrical terminal of the connecting device is designed to be connectable either to a monopolar cable for monopolar operation or to a bipolar cable for bipolar operation. A first contact and a second contact of the electrical terminal are electrically connected to an accessory coupling of the connecting device and are designed with insulation such that an accessory coupled by the accessory coupling is operable either in a monopolar or bipolar manner via the two contacts. The present invention further relates to a monopolar cable for such a connecting device, to a surgical instrument comprising such a connecting device and to a surgical system comprising such a surgical instrument and such a monopolar cable.

A method for making an electrode assembly comprises overlaying an electrode on an electrode support, the electrode comprising a plurality of openings extending at least partially through a thickness of the electrode; supporting the electrode support with a jaw body; stitching a filament made of electrically insulative material comprising a first inset segment and exposed segment into a first opening of the plurality of openings such that the first inset segment is positioned in the first opening and at least a portion of the exposed segment is positioned to overlie an exposed working surface of the electrode; and affixing at least an end portion of the first inset segment of the filament to the electrode, electrode support, and/or the jaw body.