Description

Overview

• Low-profile, skin-level, double-lumen enteral device placed through a gastric stoma with the distal limb positioned in the jejunum.
• Supports simultaneous jejunal feeding and gastric decompression/venting.
• Suitable for pediatric and adult patients.

Ports and functions

• JEJUNAL port: delivers nutrition into the small intestine (post-pyloric).
• GASTRIC port: decompression/venting as clinically directed (e.g., gravity drainage or low intermittent suction).
• BAL (balloon) port: for inflation/deflation of the internal retention balloon only.
• One-way valves in JEJUNAL and GASTRIC ports open when a MIC-KEY extension set is attached.
• No dedicated medication port; medications may be administered via the jejunal or gastric lumen per clinical direction.

Design and retention

• Internal inflatable balloon for retention with a low-profile external bolster.
• Weighted jejunal section helps maintain jejunal placement.
• Multiple jejunal exit ports for flow distribution.
• Radiopaque stripe for imaging confirmation.
• Tapered distal tip to aid placement.

Connectivity and compatibility

• Uses MIC-KEY extension sets; brand-specific and not interchangeable with other low-profile button brands.
• ENFit standard at the feeding-line side of the extension; avoid overtightening ENFit connections.
• Attachment technique: align the black marks on the button and extension, push in firmly while holding both, then turn clockwise up to three-quarters of a turn to lock; twist to unlock. To disconnect, hold the center of the button and pull straight out from the hard plastic connector.
• Offered in ENFit configurations; confirm the required connector configuration for the intended system.

Sizes and options

• French sizes: 14, 16, 18, 22 Fr.
• Jejunal lengths: 15, 22, 30, 45 cm (measured from the distal aspect of the retention balloon to the tip).
• Stoma lengths: approximately 1.0–7.0 cm (availability varies by French size).

Handling and maintenance

• Do not rotate GJ tubes (rotation applies to gastrostomy tubes, not GJ tubes).
• Do not use the balloon inflation valve for food or medication; use only the designated feeding/drainage ports.
• Balloon volumes are not checked routinely; if increased leakage or looseness is noted, check per device guidance using a 10 mL luer slip syringe.
• For flushing, use warm water with a gentle pulsatile push–pull motion; do not use excessive force and do not use carbonated beverages.

Troubleshooting

• Leakage may result from an internal valve issue, constipation/slow gastric emptying, a plugged port, or worn extension tip/locking notch. Management may include treating constipation, slowing feeds, and flushing as above. If unresolved, keep the cap closed or leave an extension plugged into the port until assessed.
• If the jejunal limb migrates back into the stomach, or the tube splits above the jejunum, cease feeds if gastric feeding is unsafe and arrange assessment/replacement.

Materials, sterility, and usage

• Medical-grade silicone; not made with natural rubber latex.
• Sterile (gamma sterilized).
• Single-use only; do not re-use, re-process, or re-sterilize.
• Prescription device (Rx only).

Kit contents

• GJ feeding tube plus MIC-KEY ENFit extension sets for continuous and/or bolus feeding (contents may vary by configuration).