Description

The MIC-KEY Low-Profile Gastric-Jejunal (GJ) Feeding Tube from Avanos Medical, Inc. is a skin-level enteral device placed through a gastric stoma with the distal limb positioned in the jejunum. It enables post-pyloric (jejunal) feeding while allowing gastric decompression/venting via a separate lumen for pediatric and adult patients. This sterile, single-use, prescription device is designed for clinician placement and management.

Key features and design

• Low-profile external button with external bolster; internal inflatable balloon retainer
• Three clearly labeled access points: JEJUNAL (feeding), GASTRIC (venting/drainage), BAL (balloon inflation/deflation)
• One-way/anti-reflux valves on JEJUNAL and GASTRIC ports that open when a MIC-KEY extension set is attached
• Weighted jejunal segment to help maintain placement and multiple distal exit ports for distribution
• Radiopaque stripe for imaging visibility and a tapered distal tip to aid placement
• Clearly marked gastric and jejunal ports to support correct use

Connectivity

• Available in ENFit and non-ENFit keyed connector variants
• Use only matching MIC-KEY extension sets; ENFit versions use enteral-only ENFit connectors
• Kits may include extension sets suitable for continuous (pump) and bolus feeding

Sizes and specifications

• French sizes: 14, 16, 18, 22 Fr
• Jejunal lengths: 15, 22, 30, 45 cm (availability varies by French size)
• Stoma length options: approximately 1.0–7.0 cm (varies by diameter/configuration)
• Balloon guidance: Fill with sterile or distilled water only. Typical volumes are 3 mL (maximum 5 mL) for 15, 22, or 30 cm jejunal lengths; 7 mL (maximum 10 mL) for 45 cm jejunal length. Always follow the device Instructions for Use for exact volumes.

Materials and sterility

• Medical-grade silicone; latex-free
• Gamma sterilized; single-use (Rx only)

Placement and care considerations

• Placement and replacement should be performed by trained clinicians via endoscopic or radiologic procedures; not for at-home replacement
• Keep ports and valves clean; attach a MIC-KEY extension set to open the one-way valve before administering feeds or medications
• Gastric drainage may be performed via gravity or low intermittent suction as directed by the care team; avoid continuous or high intermittent suction unless clinically indicated
• Use water-soluble lubricant if needed
• The external base should rest approximately 1–2 mm above the skin; consult a clinician if the fit changes or if signs of tightness/looseness occur