Abstract A space communicating with the atmosphere via a cavity and a passage is supplied with a fluid or drained by means of a tube (10) made of a flexible elastic material and having a tendency to coil up. Upon insertion into said space, the tube (10) is first held in a straightened-out condition by means of a guide (15) of flexible but unelastic material which is introduced into said tube (10) and then withdrawn therefrom to permit the tube (10) to coil up within the cavity and to be conveyed into the space by a substance supplied to the cavity. The method can be used advantageously for supplying a drug or nutriment directly to the intestine by conducting the tube (10) in its straightened-out condition through the nose, the throat and the gullet down into the stomach where it is allowed to coil up in order to be transported into the intestine by normal ingestion of the food. The tube (10) employed for carrying the method into effect consists of a flexible plastic or rubber material and tends to coil up with a predetermined force, the guide (15) consisting of flexible but unelastic material and tending to straighten itself out with a force exceeding the coiling-up force of the tube (10).
A method of positioning a catheter in the small intestine of a patient, said catheter including a flexible elastic tube having an inlet and an outlet, said catheter having a coiling portion which has an inherent tendency to coil up, said method including the steps of inserting a guide into the catheter to straighten up said coiling portion, inserting the catheter and guide into the patient to a position where the coiling portion is in the patient's stomach, removing the guide from the catheter so that the coiling portion of the catheter becomes coiled within the stomach, and subjecting the catheter and processed food within the stomach to peristaltic action to carry the coiling portion into the small intestine and uncoil it.
Claim 2
Independent Claim
122 words
A method of positioning a catheter in the small intestine of a patient, said catheter including a flexible elastic tube having an inlet and an outlet, said catheter having a coiling portion which has an inherent tendency to coil up, said method including the steps of inserting a guide into the catheter to straighten up said coiling portion, inserting the catheter and guide into the patient to a position where the coiling portion is in the patient's stomach, removing the guide from the catheter so that the coiling portion of the catheter becomes coiled within the stomach, and subjecting the catheter and processed food within the stomach to peristaltic action to carry the coiling portion into the small intestine and uncoil it.