Source:http://linkedlifedata.com/resource/umls/id/C0150740
UMD: Tubes designed to access the rectum for examination, treatment, or other purposes. These devices typically consist of a single-lumen rubber or plastic (e.g., silicon) tube of 14 to 30 French diameter or larger, about 10 cm (4 inches) long that is inserted through the anus into the rectum. Rectum tubes are used mainly for diagnostic or therapeutic purposes, including enema delivery.