Description

The MIC-KEY Low-Profile Balloon Gastrostomy Button (G‑tube) by Avanos Medical is a skin-level, balloon-retained device for long-term enteral nutrition, medication delivery, and/or gastric decompression in pediatric through adult patients. It may be placed percutaneously under fluoroscopic, laparoscopic, or endoscopic guidance, or used as a replacement through a mature stoma tract.

Indications and Use

• For patients requiring long-term enteral feeding who cannot tolerate oral intake.
• Suitable when aspiration risk is low and when gastric decompression or direct gastric medication delivery is indicated.

Design and Features

• Low-profile, discreet “button” to help reduce snagging and interference with clothing.
• Internal inflatable retention balloon.
• Anti‑reflux valve in the feeding port; valve opens when an extension set is attached. Do not insert formula or medications directly into the valve.
• External base sits just above the skin and allows rotation during routine care.
• Recessed distal tip and radiopaque stripe for visualization during placement.

Connectors and Compatibility

• Feeding-side ENFit connections via the included extension sets; an ENFit Y‑connector provides a dedicated medication port.
• MIC‑KEY SECUR‑LOK right‑angle patient‑end interface with locking mechanism to help reduce leaks and accidental disconnects and to protect the anti‑reflux valve.
• Use only MIC‑KEY extension sets with the MIC‑KEY G feeding port. Note: Legacy catheter‑tip versions (separate models) do not provide a medication port.

Materials and Sterility

• High‑clarity, medical‑grade silicone construction; natural rubber latex‑free.
• Device is supplied sterile (ethylene oxide). Single use for the tube.
• MIC‑KEY extension sets are reusable for a single patient; latex‑free and DEHP‑free when supplied separately.

Sizes and Balloon Inflation

• French sizes: 12, 14, 16, 18, 20, 24 Fr.
• Stoma lengths (cm): 0.8, 1.0, 1.2, 1.5, 1.7, 2.0, 2.3, 2.5, 2.7, 3.0, 3.5, 4.0, 4.5, 5.0 (availability varies by French size).
• Balloon fill (sterile/distilled water only):
• 12 Fr: 3 mL recommended; 5 mL maximum.
• 14–24 Fr: 5 mL recommended; 10 mL maximum. Do not overinflate.

Kit Contents (ENFit configuration)

• MIC‑KEY Low‑Profile Gastrostomy Feeding Tube.
• Continuous Feed Extension Set, ENFit, 12 in (right‑angle SECUR‑LOK patient‑end).
• Bolus Feed Extension Set, ENFit, 12 in (right‑angle SECUR‑LOK patient‑end).
• 35 mL ENFit enteral syringe.
• 6 mL Luer Slip syringe (for balloon inflation/deflation).
• Gauze pad.
• Insertion stylet (US only).
• Water‑soluble lubricant (US only).

Additional Notes

• Single gastric feeding port only (no jejunal port).
• Use sterile/distilled water for balloon inflation and water‑soluble lubricant as directed.
• A stoma measuring device is available separately to determine appropriate shaft length.
• Information may change; consult the manufacturer for current specifications and ordering guidance.