摘要:
A two stage device for delivering an elongated member to the upper gastrointestinal tract consisting of an outer gelatin pharmaceutical capsule which dissolves in the stomach, an inner open ended capsule contained in said outer capsule and being nonsoluble in the gastro-intestinal tract and having walls inwardly deflectable under peristaltic action of the upper gastro-intestinal tract in the absence of the outer capsule and carrying a weight and a portion of the elongated member. The device being used to deliver cord or tubing at least as far as the duodenum where the carrier separates from the elongated member and passes harmlessly out with the stool. The elongated member as a tube carries medicines, other liquids or gas to the duodenum, and as a yarn is retrieved and examined for diagnosing infection, parasites and other disorders.