An endoscopic snare device (10, 100, 100') includes a pair of bowed, resiliently deformable, snare wires (12, 14) with bow shaped memory, a mesh (20) attached to mid-portions (16, 18) and distal portions (22, 24) of the snare wires (12, 14) for a mesh length (A) that is less than the snare length (L), a bowed, resiliently deformable, support wire (116) extending in a plane out of the plane of the snare wires (12, 14), and a pair of bowed, resiliently deformable, incising wires (112, 114) side by side with the snare wires (12, 14). The support wire (116) is electrically insulated. A mouth cord or wire (46) extends from one snare wire (12), through the support wire (116), and to the other snare wire (14).
