A. Rectal Tube.
B. Ryle’s naso-gastric tube.
D. Plain tube.
The surgical tube shown in the picture above represents Rectal Tube.
A rectal tube, also called a rectal catheter, is a long slender tube which is inserted into the rectum in order to relieve flatulence which has been chronic and which has not been alleviated by other methods. The term rectal tube is also frequently used to describe a rectal balloon catheter, although they are not exactly the same thing. Both are inserted into the rectum, some as far as the inner colon, and help to collect or draw out gas or feces.
The use of a rectal tube to help remove flatus from the digestive tract is needed primarily in patients who have had a recent surgery on the bowel or anus, or who have another condition which causes the sphincter muscles not to work appropriately enough for gas to pass on its own. It helps to open the rectum and is inserted into the colon to allow gas to move downward and out of the body. This procedure is generally only used once other methods have failed, or when other methods are not recommended due to the patient’s condition.