6 results about "Bipolar electrosurgery" patented technology

Bipolar electrosurgical forceps are provided with dual irrigating tubes that deliver irrigating liquid to the opposed surfaces of the tips of the forceps to prevent the sticking of body tissue to the tips. To reduce the manufacturing costs of the forceps and enable the forceps to be single use, disposable forceps, each tube of the dual irrigating tools is a plastic tube adhered along one of the opposing surfaces of the pair of forceps arms. Each tube also has a flat nozzle at the distal end of the tube that disburses irrigating liquid across the opposed surfaces of the forceps arm distal and tips.

A bipolar electrosurgical devices and methods of use for coagulation and ablation of tissue in a fluid-immersed working space is disclosed. The bipolar electrosurgical device can comprise a handle and an elongated shaft coupled to the handle. The bipolar electrosurgical device can further comprise a bipolar electrode arrangement and a return electrode. The bipolar electrode arrangement and the return electrode can be electrically insulated from one another. The bipolar electrosurgical device can further comprise an adjusting member carried by the elongated shaft. Movement of the adjusting member from a first position toward a second position can contemporaneously increase an effective surface area of the active electrode and decrease an effective surface area of the return electrode.

Bipolar electrosurgical devices and methods of use for cutting, ablating, or coagulating tissue, for example, in endoscopic gynecology procedures.

An electrosurgical system includes an electrosurgical generator configured to output electrosurgical energy to an electrosurgical device for application to tissue. The electrosurgical generator is configured to determine a condition of contact between at least one electrode of the electrosurgical device and tissue or a surgical technique of using the electrosurgical device and to control the electrosurgical energy output by the electrosurgical generator based on the determined condition or surgical technique.

Various embodiments provide an elongate structure for delivery of bipolar energy. The elongate structure is for use in an electrosurgical device. The elongate structure comprises: one or more insulator strands; a first conductive strand configured to provide an elongate first electrode; and, a second conductive strand configured to provide an elongate second electrode. The first conductive strand is electrically isolated from the second conductive strand by the one or more insulator strands. The first electrode and second electrode are configured to deliver bipolar energy into biological tissue. Some other embodiments provide a bipolar electrosurgical device comprising the elongate structure, and an electrosurgical system comprising the bipolar electrosurgical device.

A bipolar electrosurgical instrument (1) comprising an articulated end (2) comprising a support link (10) and two ends (21, 22) comprising an electrically conductive body, said ends being articulated to the support link (10) and being movable towards / away from each other; wherein: said support link (10) comprises a multilayer structure comprising two electrically conductive bodies (11, 12) and at least one electrically insulating body (20) therebetween, each electrically conductive body (11, 12) of the support link comprising a support portion (13, 14) thereof receiving a respective end (21, 22) in electrically conductive communication therewith, a first outward conductive path and a second separate conductive return path passing through the conductive body of the ends (21, 22) and the support link (10); the support link (10) defines two rotational joints (PJ, DJ) having mutually orthogonal axes (P-P, Y-Y), where each of the two rotational joints comprises a multilayer structure, where an electrically insulating body (20) is interposed between two electrically conductive bodies (11, 12).