A new self-twisting polypectomy snare.

In contrast to the hitherto available polypectomy snares the newly designed snare for endoscopic polypectomy offers the following advantages: when the tip of the endoscope is directed towards the polyp the snare turns automatically into a position parallel to the polyp-bearing bowel wall. "Combusting ulcers" are avoided, a homogenous circular flow of electric current is guaranteed.