Description

The Avanos MIC-KEY Low-Profile Balloon Gastrostomy Feeding Tube (Button) in ENFit configuration is a skin-level device designed for long-term enteral nutrition, gastric decompression, and medication delivery in pediatric and adult patients. Its low-profile “button” sits at skin level to reduce external profile and help with comfort and discretion under clothing. The device can be placed initially by a clinician or used as a replacement in a mature stoma tract, and features an internal inflatable retention balloon and a proximal anti-reflux valve that remains closed unless an extension set is attached.

Indications

• Long-term enteral feeding when oral intake is not tolerated
• Gastric decompression
• Direct medication delivery

Key features

• Low-profile skin-level button with anti-reflux valve that stays closed until an extension set is connected
• Internal inflatable retention balloon; distal tip recessed at recommended fill volume
• ENFit (ISO 80369-3) enteral-only connectivity via MIC-KEY extension sets
• SECUR-LOK patient-end connectors on extension sets help secure the connection and protect the valve
• Tapered distal tip designed to assist insertion
• Radiopaque stripe for visualization

Materials and biocompatibility

• Tube: high-clarity medical-grade silicone
• Not made with natural rubber latex; not made with DEHP
• Extension sets: latex-free and DEHP-free

Sterility and reuse

• G-tube: sterile (ethylene oxide); single-use only (do not re-use, reprocess, or re-sterilize)
• Extension sets: non-sterile; reusable for a single patient

Sizes and stoma lengths (ENFit models)

• 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 (e.g., 12 Fr typically up to 4.0 cm; 24 Fr typically 1.5–5.0 cm)

Balloon fill (sterile/distilled water only)

• 12 Fr: recommended 3 mL; maximum 5 mL
• 14–24 Fr: recommended 5 mL; maximum 10 mL

Kit contents (ENFit configuration)

• MIC-KEY Low-Profile G-tube (ENFit model) with port cover and balloon valve
• MIC-KEY Continuous Feed Extension Set, 12 in/30 cm (ENFit Y-connector with medication port; SECUR-LOK right-angle patient-end; clamp)
• MIC-KEY Bolus Extension Set, 12 in/30 cm (ENFit connector; SECUR-LOK straight patient-end; clamp)
• 6 mL luer slip syringe (balloon inflation/deflation)
• 35 mL ENFit enteral syringe
• Gauze pads
• Insertion stylet and water-soluble lubricant where supplied

Compatibility and handling

• Enteral-use only; avoid misconnections with non-enteral connectors
• Keep feeding port clean; attach an extension set to open the anti-reflux valve—do not push formula or medications directly through the closed valve
• Verify balloon integrity and volume periodically per clinical guidance

Contraindications (examples, not exhaustive)

• Ascites, colonic interposition, portal hypertension, peritonitis, morbid obesity