| 摘要 |
This evulsion aid for a fistula catheter has a cylindrical member. The inner diameter of this cylindrical member is larger than the outer diameter of a tube of a fistula catheter, and smaller than the outer diameter of a bumper of the fistula catheter. Moreover, the outer diameter of the cylindrical member is smaller than the fistula. Since the length of the cylindrical member is longer than the fistula, when the cylindrical member is inserted into the fistula, the proximal end of the cylindrical member remains outside the body. When the tube is pulled in the state in which the distal end of the cylindrical member is inserted into the gastric lumen, the bumper is deformed in the direction of contracting diameter by the distal end of the cylindrical member. |
