Monopolar RF-surgical snares

A monopolar snare comprising:

• a first snare portion defined by an electrical conductor that has a first length, a first proximal end, and a first distal end, said first snare portion being devoid of electrical insulation extending from the first proximal end towards the first distal end,
• a second snare portion defined by a wire having a second length equal to the first length, a second proximal end, and a second distal end, said second snare portion having electrical insulation element covering said wire from said second distal end to said second proximal end;
• a catheter having an open end;
• and
• a manipulation wire movably disposed inside said catheter,
• wherein
• (i) each of the first and second proximal ends is affixed to an end of the manipulation wire nearest said open end, and
• (ii) the first and second distal ends are affixed to one another to form a distal connecting portion that closes a symmetrical loop of said snare, the first snare portion defining a first half of said symmetrical loop and the second snare portion defining a second half of said symmetrical loop, and
• (iii) wherein said snare is a symmetrically opening and closing polypectomy snare configured to ensnare and RF-surgically remove tissue.