#$%^&*AU2012200824B220130117.pdf#####FISTULA CATHETER AND FISTULA CATHETER SET Abstract A fistula catheter set comprising a fistula catheter (A) suitable for fitting in a fistula formed in an abdominal wall and a wall of an alimentary canal of a patient, said fistula catheter (A) being provided with a flow channel for supplying fluid from outside a patient's body for ingestion to the alimentary canal of the patient, said fistula catheter (A) comprising: an external retention part (10) suitable for disposing on an abdominal wall surface side of the fistula； and a flexible tubular part (20) formed as a helix, said flexible tubular part (20) comprising a base end part (21) and a tip end part (22), wherein the base end part (21) links with the external retention part (10), and wherein the tip end part (22) is configured so that in use it extends from the fistula into the alimentary canal； and an extension instrument (25) provided with an insertion part (27), said insertion part (27) comprising a member which can be inserted into the fistula catheter (A) and which deforms less readily than the fistula catheter (A), wherein the insertion part (27) is formed as a helix, wherein a length in the radial direction of the helix of the insertion part (27) is shorter than a length in the radial direction of the helix of the tubular part (20), and wherein a length in the axial direction of the helix of the insertion part (27) is longer than a length of the helix of the tubular part (20). 5599627_1:hxa
