Patent ID: 6712759
Filing Date: 2004-03-30
Classification: A61B

Abstract:
An assembly of an outer sheath and inner sheath for providing inflow and outflow of fluids at a surgical site comprising: an outer sheath disposed about at least a portion of an inner sheath, and an outflow channel disposed between the inner sheath and outer sheath, the assembly having an outflow conduit with an outflow aperture initiating in an outer wall at the distal end of the assembly, the conduit being disposed generally in a longitudinal direction and communicating with the more proximal outflow channel formed between the outer sheath so that fluid may be directed from the outflow conduit into the outflow channel;wherein the outflow conduit initiates in a distal tip portion of the sheath assembly in a position distal to a main inflow hole for the sheath assembly; and wherein the tip portion comprises a dielectrical tip element disposed at the distal end of the outer sheath, the tip element having a plurality of lateral outflow openings, the openings being in fluid communicating with a channel between the inner and outer sheaths.