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A polyurethane naso-enteric feeding-decompression catheter was developed whose size is less than 20 French (O.D. <6.67mm), yet has an I.D. of only 6mm. Flexibility without kinking was maintained by stenting with a "double helix" of ultra-thin stainless steel spring band. Its total wall thickness is approximately one-fifth that of conventional construction. This catheter can be inserted over a currently available 5mm nasal gastroscope for safe and rapid placement. The larger channel can aspirate both the stomach and duodenum. A second fine bore feeding tube can be inserted co-axially, to extend 5cm beyond the larger channel (e.g., into the more distal duodenum), resulting in a two lumen feeding-decompression catheter. The lubricated <20 French re-enforced catheter is slid over the 5mm nasal gastroscope. The pair is guided into the distal duodenum under direct vision, and the gastroscope withdrawn.A 6 French feeding catheter is inserted co-axially 5cm beyond the outer channel. For safety, this final 5 cm will be accomplished by retracting the outer aspiration tube over the feeding tube.


Catheter Inserted Over Nasal Gastroscope