How do I replace the MiniONE® Balloon Button?

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  • Be sure to check out the Quick Care™ section for all of our great educational videos about the MiniONE®.
  • CAUTION: BEFORE CHANGING THE G-TUBE, PLEASE CHECK EVERYTHING IN THE KIT FOR ANY BROKEN PARTS. IF THE PACKAGE LOOKS LIKE IT IS BROKEN OR OPEN, DO NOT USE THE G-TUBE.
  1. Be sure you have the correct MiniONE® Button size. Verify that the French size and stoma length of the replacement device match what is prescribed by your physician.
    • NOTE: When changing the G-Tube, the stoma length should be re-measured every 6-12 months to be sure the correct MiniONE® Button length is being used. If patient size/weight has changed since the G-Tube was placed, if the fit is too tight or too loose, or if it has been over six months since the stoma length was last measured, you should speak with your healthcare provider about possibly having the stoma length re-measured.
  2. Prior to placing the MiniONE® Button, inflate the balloon to the recommended fill volume using distilled or sterile water (Table 1). To do this, insert a pre-filled Luer slip syringe into the balloon fill port and press on the syringe plunger (Fig. 1). The recommended fill volume is printed on the balloon fill port of the device. Remove the syringe and inspect the balloon by gently squeezing the balloon to check for leaks. Visually inspect the balloon to verify symmetry. Reinsert the syringe into the balloon fill valve and remove all of the water from the balloon.
  3. Apply a water soluble lubricant to the tip of the MiniONE® device (you can use the packet of lubricating jelly that is included with the MiniONE® device kit). DO NOT USE mineral oil or any creams with petroleum jelly. If you need to stiffen the G-Tube, you can insert the blue stiffener into the Glow Green™ feed port prior to inserting the device into the stoma (Fig. 2).
    • NOTE: The blue stiffener is included with 12F – 18F MiniONE® G-Tubes, it DOES NOT COME with the 20F – 24F MiniONE® G-Tubes.
  4. Gently press the tip of the MiniONE® through the stoma and into the stomach until the outside of the tube is flat against the skin.
  5. Remove the blue stiffener (if used in step 3).
  6. Fill a Luer slip syringe with the correct volume of water. Insert the syringe into the balloon fill port of the MiniONE® and inflate the balloon to the recommended fill volume (see Table 1). The recommended fill volume is printed on the balloon fill port of the MiniONE®.
  7. Gently pull on the G-Tube and check for signs of gastric leaking.
  • NOTE: If the MiniONE® feels too loose/too tight, or if there is leakage at the stoma site, refer to the FAQ, “The MiniONE® Balloon Button feels loose/tight against the skin; what should I do?” for more information.