Description

Overview

The Avanos MIC-KEY Low-Profile Gastric-Jejunal (GJ) Feeding Tube is a button-style, skin-level enteral device placed through a gastric stoma with the distal limb positioned in the jejunum. It is intended for pediatric and adult patients who require post-pyloric (jejunal) feeding while allowing simultaneous gastric decompression or venting through a separate lumen.

Design and ports

• Low-profile external button with internal inflatable balloon retention.
• Three ports:
• JEJUNAL: for feeding into the small intestine.
• GASTRIC: for decompression/venting via gravity or low intermittent suction (do not use continuous or high intermittent suction).
• BAL: balloon inflation/deflation.
• JEJUNAL and GASTRIC ports have one-way/anti-reflux valves that open when a MIC-KEY extension set is attached.
• No dedicated medication port; medications are delivered via the jejunal or gastric port as directed clinically.

Connectivity and compatibility

• Uses MIC-KEY extension sets with lock-and-key connectors and black orientation lines; connector secures with approximately a 3/4 clockwise turn.
• Available in ENFit and Catheter Tip (non-ENFit) variants. The Kit variant uses ENFit and includes ENFit extension sets.

Key features

• Weighted jejunal portion helps maintain jejunal placement.
• Multiple jejunal exit ports distribute feeding.
• Radiopaque stripe for imaging visibility.
• Tapered distal tip to aid placement.
• Clearly marked JEJUNAL and GASTRIC ports.

Materials and regulatory

• Medical-grade silicone; latex-free.
• Sterile (gamma-sterilized); single-use.
• Prescription device (Rx only).

Sizes and options

• French sizes: 14, 16, 18, 22.
• Jejunal lengths (cm): 15, 22, 30, 45.
• Stoma lengths (cm): 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; 5.5; 6.0; 6.5; 7.0 (availability varies by diameter/length combination).

ENFit Kit contents (Kit variant)

• MIC-KEY GJ Continuous Feed Extension Set, 12 in.
• MIC-KEY GJ Bolus Feed Extension Set, 12 in.
• 35 ml syringe (for venting/priming/flushing extension sets).
• 6 ml luer slip syringe (for balloon inflation/deflation).
• Patient Use & Care Guide.
• Note: Stoma measuring device not included.

Balloon inflation guidance

• Inflate the balloon with sterile or distilled water only.
• Recommended fill volumes:
• Jejunal lengths 15/22/30 cm: 3 ml (maximum 5 ml).
• Jejunal length 45 cm: 7 ml (maximum 10 ml).

Care and handling highlights

• Position the external base to rest slightly above the skin (~1–2 mm); do not rotate the external bolster.
• Use only water‑soluble lubricant as needed.
• Use MIC-KEY extension sets only; keep the connector locked during feeding.
• Flush the tube and extension sets before and after each use; keep valves and ports clean.
• Do not insert medications or formula directly into the feeding port valve; attach an appropriate extension set first.