Patent ID: 7357802
Filing Date: 2008-04-15
Classification: A61B,H05H

Abstract:
1. An electrosurgical cutting system, comprising: a) an electrically conductive blade, said blade having a first surface, a second surface opposite said first surface, and an edge where said first and second surfaces meet, said edge having an edge radius of curvature, wherein a predetermined length of said edge is a cutting portion for cutting biological tissue; b) a first insulator on said first surface; c) a second insulator on said second surface; and d) a source of pulsed electrical energy electrically configured to connect to said blade, wherein said source of pulsed electrical energy is configured to apply a plurality of bursts of pulses separated by a burst interval of greater than about 1 ms during which no pulses are present and wherein the duration of the burst of pulses is 1 ms or less; wherein said cutting portion has an in-plane radius of curvature that is at least 10 times larger than said edge radius of curvature along the entire length of said cutting portion.