WIRE-FORM ELECTROSURGICAL INSTRUMENTS

摘要

An electrosurgical instrument includes a movable and deformable electrode (47). The electrode (47) can be moved proximally and distally within a sheath (34), and further can be shaped at the surgical site to meet various cutting and cauterizing requirements. The electrode (47) may include a wire (43) which serves to provide current at specific sites and which is shapeable to meet various surgical requirements. A radio frequency signal is passed through the wire (43) to provide cutting and cauterizing at specific surgical sites. The wire electrode (43) is able to provide a high concentration of energy while maintaining a relatively low power setting.