A sterile, thin, flexible, hollow cylinder intended to be used to mechanically decompress the colon, typically by connection to an intermittent suction system, to treat conditions including non-toxic megacolon, pseudo-obstruction (Ogilvie syndrome) and/or colonic strictures. It includes a guidewire which is inserted per rectum using a colonoscope (not included) under fluoroscopic assistance. It is made of plastic and rubber materials and may be a straight or pigtail tube with drainage bag connectors/adaptors at the proximal end. This is a single-use device.