Description

Overview

A skin-level, low-profile trans-gastric jejunal feeding tube designed for simultaneous post-pyloric (jejunal) feeding and gastric decompression/venting. Suitable for pediatric and adult patients; prescription device (Rx only). The low-profile “button” design aims to improve comfort and discretion while providing reliable enteral access.

Design and key features

• External low-profile bolster with internal inflatable retention balloon
• Weighted jejunal limb to help maintain position within the jejunum
• Multiple jejunal exit ports to distribute feeding
• Tapered distal tip to aid placement; radiopaque stripe for imaging visibility
• One-way, anti-reflux valves in JEJUNAL and GASTRIC ports that open when a MIC-KEY extension set is attached
• No dedicated medication port; medications are delivered via the jejunal or gastric port per clinical direction

Ports

• JEJUNAL (J): delivers nutrition to the small intestine
• GASTRIC (G): decompression/venting of the stomach (via gravity drainage or low intermittent suction per orders)
• BAL: balloon inflation/deflation

Connectivity and compatibility (ENFit)

• ENFit connector type for feed set interface (this Kit)
• Use only MIC-KEY ENFit extension sets; do not introduce formula or medication directly into a valve without an extension set attached
• Extension sets available for continuous/pump feeding and for bolus feeding; keyed connectors with orientation marks; lock with approximately a 3/4-turn—do not turn past the stop
• Note: Some MIC-KEY GJ configurations exist with non-ENFit connectors; this Kit is the ENFit version

Sizes and specifications

• French sizes: 14 Fr, 16 Fr, 18 Fr, 22 Fr
• Jejunal lengths: 15 cm, 22 cm, 30 cm, 45 cm (availability may vary by French size)
• Stoma lengths: approximately 1.0 cm to 7.0 cm in various increments (configuration-dependent)

Balloon inflation guidelines

• Use only sterile or distilled water; do not overinflate
• Jejunal length 15/22/30 cm: recommended fill 3 mL (maximum 5 mL)
• Jejunal length 45 cm: recommended fill 7 mL (maximum 10 mL)

Placement

Placed through an existing gastrostomy with the distal limb positioned in the jejunum, typically under fluoroscopic/X-ray guidance using a guide wire in a hospital radiology setting.

Care and handling highlights

• Flush the feeding tube and extension sets before and after use per clinical orders to help prevent clogging
• Clean the external base and ports with warm water and mild soap; keep the stoma area clean and dry
• Do not rotate or turn the low-profile bolster/device
• Use only water-soluble lubricant on connectors as needed
• For decompression, use gravity drainage or low intermittent suction (avoid high continuous suction)
• Ensure the external base rests slightly above the skin (~1–2 mm); have fit rechecked if body weight or stoma length changes
• Inflate/deflate the balloon via the BAL port only and verify volume per the configuration above

Materials and sterility

• Medical-grade silicone; latex-free
• Sterile (gamma sterilized); single-use

Kit contents (ENFit Kit)

• MIC-KEY GJ ENFit Continuous Feed Extension Set and Bolus Feed Extension Set
• Syringes for priming/flushing and balloon inflation/deflation
• Patient Use & Care Guide
• Stoma measuring device not included