An electrosurgical device including an elongated body extending from a proximal portion to a distal portion and defining an internal passageway configured to convey tissue from the distal portion to the proximal portion, and a coring electrode positioned at the distal portion of the elongated body, where the coring electrode is at an opening to the internal passageway, and where the coring electrode is configured to deliver electromagnetic energy to adjacent tissue to cut a volume of the tissue as the tissue is conveyed into the internal passageway.

An electrosurgical device including an elongated body extending from a proximal portion to a distal portion and defining an internal passageway configured to convey tissue from the distal portion to the proximal portion; a coring electrode at the distal portion of the elongated body, where the coring electrode is positioned at an opening to the internal passageway, and where the coring electrode is configured to deliver electromagnetic energy to adjacent tissue to cut a volume of the tissue as the tissue is conveyed into the internal passageway; and a powered conveyance mechanism positioned within the internal passageway configured to further cut the volume of the tissue and convey the volume of the tissue proximally within the internal passageway.

A method includes, inserting a catheter into a cavity of a patient organ for performing a medical procedure, the cavity is of a given cavity type. A partial anatomical mapping of the cavity is performed by visiting one or more anatomical points on a surface of the cavity, using the catheter. Based on the partial anatomical mapping, a Graphical User Interface (GUI) template is selected, which is specified for applying the medical procedure to the given cavity type. The selected GUI template is presented to a user for performing the medical procedure in the cavity.

An intervertebral disc surgical system has at least one optical cannula configured with a working channel and an optical channel, wherein the working channel and the optical channel are positioned parallel to one another. The working channel is configured to receive the elongated tubular member of an electrosurgical instrument and the optical channel is configured to receive an optical scope. The optical cannula has an optical cannula operative end for entering an operative field of a patient.

An electrosurgical instrument can be provided that includes a pair of opposing jaws, a channel in at least one of the opposing jaws for receiving a reciprocating blade, and a fluid distribution system in communication with the one or more fluid openings located within the channel for delivering a fluid to the jaws.

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and one or more piezo electric sensors. The jaw member also includes an insulative plate disposed between the support base and the sealing plate.

A tool assembly for use with an electrosurgical device for cutting tissue includes a base portion, a return lead, an electrical insulator, a center pin, and an active lead. The center pin extends from the base portion and through a lumen of the electrical insulator. The active lead is securely fixed to the base portion and extends between the base portion and a distal portion of the center pin such that a portion of the active lead extends around the distal portion of the center pin and first and second segments of the active lead are spaced apart from the return lead. Upon activation, electrosurgical energy is transmitted from the active lead through tissue to the return lead to cut tissue in contact with the active lead.

Devices, systems, and methods for treating cardiac arrhythmia are disclosed herein. In some embodiments, devices, systems, and methods disclosed herein deliver interrogating energy to tissue at a position on a wall of an anatomical structure of a patient. If the devices, systems, and methods disclosed herein detect a change in electrical activity of the anatomical structure in response to the interrogating energy, the devices, systems, and methods disclosed herein can apply irreversible therapy to the tissue. In some embodiments, the change in electrical activity corresponds to slowing or termination of a detected arrhythmia.

A surgical treatment instrument includes an elongated member an end effector that is bendable with respect to the elongated member, a bending operator operable to bend the end effector, a rotor rotatable about a rotation axis in response to operation of the bending operator, and a transmitter that transmits a driving force to bend the end effector. The bending operator, the rotor, and the transmitter are rotatable about the longitudinal axis together with the elongated member and the end effector.

A system includes a signal generator, configured to pass a generated signal, which has two different generated frequencies, through a circuit including an intrabody electrode. The system further includes a processor, configured to identify, while the generated signal is passed through the circuit, a derived frequency, which is derived from the generated frequencies, on the circuit, and to generate, in response to identifying the derived frequency, an output indicating a flaw in the electrode. Other embodiments are also described.