Description

The Avanos Medical MIC-KEY low-profile balloon gastrostomy button (24 Fr) is a skin-level, balloon-retained device for long-term enteral feeding, medication delivery, and gastric venting/decompression. Suitable for pediatric and adult patients, it may be placed percutaneously under fluoroscopic, laparoscopic, or endoscopic guidance, or used as a replacement device in an established stoma tract. This sterile device (ethylene oxide sterilization) is made from high-clarity, medical-grade silicone and contains no natural rubber latex. Prescription use (Rx-only).

Key features (G-button)

• Low-profile external base helps reduce snagging and interference with clothing.
• Internal inflatable retention balloon for secure placement.
• Feeding port includes an anti-reflux valve that remains closed when no extension is attached.
• Radiopaque stripe aids visualization during imaging.
• Tapered distal tip designed to ease passage through the stoma tract.
• High-clarity silicone construction for flexibility and patient comfort.

Connectivity and compatibility

• Patient-side interface: MIC-KEY SECUR-LOK right-angle connector on the button.
• Use only MIC-KEY extension sets with the MIC-KEY feeding port to protect the valve and ensure proper engagement.
• Feeding-side connectors on the extension sets are ENFit (ISO 80369-3) to support enteral-only connectivity.

Kit contents (ENFit configuration)

• MIC-KEY low-profile G-button, 24 Fr
• ENFit extension sets: 12-inch Continuous Feed and 12-inch Bolus Feed (both with SECUR-LOK right-angle patient end)
• 6 mL luer slip syringe for balloon inflation/deflation
• 35 mL ENFit enteral syringe
• Gauze pad
• Note: An insertion stylet and water-soluble lubricant may be included in some regions

Sizes and specifications

• French size: 24 Fr
• Available stoma lengths (cm): 1.5, 1.7, 2.0, 2.3, 2.5, 2.7, 3.0, 3.5, 4.0, 4.5, 5.0
• Balloon fill: Use sterile/distilled water; recommended 5 mL (maximum 10 mL)

MIC-KEY ENFit extension sets (typical features)

• For MIC-KEY low-profile G, J, and GJ tubes
• Patient end: SECUR-LOK right-angle connector with safety ring; swivels to accommodate movement; alignment marks for secure engagement/disengagement
• Feeding end: ENFit connector with 2-port Y-configuration and dedicated medication port; tubing clamp
• Common lengths: approximately 12 in (~30 cm) and 24 in (~60 cm)
• Non-sterile; reusable for a single patient; contains no natural rubber latex; DEHP-free

Use and care notes

• Attach/detach extensions by aligning marks and rotating to lock/unlock; do not overtighten.
• Flush the tube and extension sets before and after use to help reduce clogging.
• Typical replacement interval for extension sets is about every two weeks, per instructions for use.