title: Novel technique of a multifunctional electrosurgical system for minimally invasive surgery.
abstract: Bipolar electrosurgery in the minimally invasive endoscopic surgery theater has been traditionally limited to the use of standard bipolar forceps, which are minimally versatile, have a limited range of motion, and are associated with visualization and handling constraints. The authors designed a novel surgical device system in which commonly used surgical instruments (suction, microscissors, micrograspers, and dissectors) co-function as individually insulated and modular electrodes for bipolar electrosurgery. In this feasibility study, the successful use of these prototypes in endonasal endoscopic transsphenoidal surgery was demonstrated on 2 human cadavers, and in an in vivo arterial coagulation model on 2 live rats. This prototype system provided improved bipolar instrument mobility, minimized the requirement to exchange surgical instruments when performing electrosurgery, and allowed for new maneuvers that optimized surgical workflow, such as the ability to suction blood and smoke while cauterizing. This multifunctional bipolar cautery system may improve surgical efficiency and workflow and facilitate surgical microdissection and electrocautery during minimally invasive, endoscopic, robotic or traditional open surgery.
authors.affiliation: Department of Neurosurgery, Keck School of Medicine, and.
authors.forename: David
authors.initials: D
authors.lastname: Mittelstein
authors.affiliation: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California.
authors.forename: Jiahan
authors.initials: J
authors.lastname: Deng
authors.affiliation: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California.
authors.forename: Rachel
authors.initials: R
authors.lastname: Kohan
authors.affiliation: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California.
authors.forename: Mojdeh
authors.initials: M
authors.lastname: Sadeghi
authors.affiliation: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Maarek
authors.affiliation: Department of Neurosurgery, Keck School of Medicine, and.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Zada
mesh_terms: D000818:Animals; D002339:Carotid Arteries / Q000601:surgery; D004598:Electrosurgery / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D008297:Male; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation / Q000379:methods*; D023421:Models, Animal; D017207:Rats, Sprague-Dawley; D019291:Skull Base / Q000601:surgery
keywords: bipolar electrocautery; electrode; endoscopic surgery; grasping forceps; instrumentation; microdissector; microscissor; surgical technique