Patent ID: 6979332

Claim:
A surgical micro-resecting instrument for use with an ENT procedure, the instrument comprising: an outer tubular member formed of an electrically conductive material and defining a proximal section, a distal section, and a lumen, wherein the distal section forms a cutting window open to the lumen and a partially enclosed axial passage distal the cutting window, the axial passage being fluidly connected to the lumen; an inner tubular member disposed within the lumen of the outer tubular member, the inner tubular member defining a proximal portion and a distal portion, wherein the distal portion forms a cutting tip; a hub assembly maintaining the proximal section of the outer tubular member and the proximal portion of the inner tubular member; and an electrical insulator covering a region of the outer tubular member distal the hub assembly, wherein at least the cutting window is not covered by the insulator.