Patent ID: 6471701
Filing Date: 2002-10-29
Classification: A61B

Abstract:
A high-frequency (hf) resectoscope implement (1) for cutting body tissue in a body cavity filled with an electrically conducting fluid, comprising a loop support (6) and a loop-shaped cutting electrode (3) mounted distally to said loop support, a plane of said loop-shaped cutting electrode slanting relative to a longitudinal axis of the loop support (6), said implement further comprising a neutral electrode (9) mounted on said support, wherein an insulator (7) is mounted between the cutting and neutral electrodes (3, 9) at the loop support (6) such that any straight geometric line drawn between the electrodes (3, 9) passes through the insulator (7), and wherein the neutral electrode (9) and the insulator (7) are configured such that, when disposed in an active position within a resectoscope (20), they do not significantly hamper a view through an optics (22), which is mounted in a stem tube (21) of said resectoscope (20).