Description

The Avanos MIC-KEY Low-Profile Gastric-Jejunal (GJ) Feeding Tube Kit (ENFit) is a skin-level, balloon-retained device that enables post-pyloric (jejunal) feeding while allowing gastric decompression/venting through a separate lumen. Designed for pediatric and adult patients when gastric feeding is not tolerated or appropriate (e.g., gastroparesis, gastric outlet obstruction, severe reflux with aspiration risk), it is typically placed via an existing gastric stoma.

Ports and connectivity

• Two lumens with clearly marked ports: JEJUNAL (feeding) and GASTRIC (decompression/venting); one-way valves open when a MIC-KEY ENFit extension set is attached.
• BAL port for balloon inflation/deflation.
• ENFit enteral-only connectors; no dedicated medication port. Medications may be delivered via the jejunal or gastric port per clinical direction.

Key features and sizing

• Low-profile "button" head with external bolster and inflatable internal retention balloon.
• Tungsten-weighted jejunal segment to help maintain jejunal placement.
• Multiple jejunal exit ports for feeding; tapered distal tip and radiopaque stripe to aid placement verification.
• Medical-grade silicone; latex-free; gamma sterilized; single-use; prescription device (Rx only).
• Available French sizes: 14, 16, 18, 22 Fr.
• Jejunal lengths (size-dependent): 15, 22, 30, 45 cm; stoma length options approximately 1.0–7.0 cm.

Intended use

• Provides continuous jejunal nutrition while permitting gastric venting for patients requiring post-pyloric feeding after an unsuccessful gastric feeding trial.

Clinical considerations

• Placement is typically performed by interventional radiology or surgical/gastroenterology teams for longer-term jejunal feeding.
• Do not rotate PEJ or G-J tubes. If adjustment is required, gently move approximately 1 cm in and out to reduce displacement risk, per institutional protocol.
• Deliver feeds slowly via continuous infusion using an enteral pump (not bolus). Many patients require 16–24 hours/day depending on tolerance and nutritional goals.
• Flush with sterile water before and after feeds and medications, and at least every 4 hours during continuous feeds or when not in use. Typical volumes: neonates 1–3 mL; pediatric 3–5 mL; adjust per patient size and fluid balance.
• Replacement commonly occurs every 6–12 months, or earlier if blocked or dislodged; follow manufacturer guidance and local procedures.

Kit includes

• MIC-KEY low-profile GJ feeding tube
• MIC-KEY ENFit extension sets (continuous and bolus styles)