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4A Internal-External Biliary Drainage Catheter

4A Internal-External Biliary Drainage Catheter

SKU: 4A-GE-0013

The Internal-External Biliary Drainage Catheter is engineered for dual-function biliary management, providing simultaneous internal drainage into the duodenum and external decompression outside the abdominal wall. Featuring drainage holes both proximal and distal to a biliary stricture, this catheter bridges the obstructive lesion, restoring internal bile flow to aid digestion while allowing external monitoring and flushing.

Available Sizes

8 Fr 8.5 Fr 10 Fr 12 Fr 14 Fr

Technical Specifications

Product NameInternal-External Biliary Drainage Catheter
Intended ApplicationDual internal/external biliary drainage with stricture bridging
MaterialRadiopaque Polyurethane
Drainage Hole ConfigurationDual-zone perforations (Proximal zone for liver/bile duct, Distal zone for duodenum)
Retention MechanismLocking pigtail with string-lock mechanism
Guidewire Compatibility0.035 in (0.89 mm) interventional guidewires
Sterilization MethodEO Sterilized, packaged in sterile pouch

Key Benefits

  • Dual Path Drainage: Restores natural enterohepatic bile circulation into the intestine while providing an external port for decompression and therapeutic irrigation.
  • Bridge Stricture Coverage: Straddles benign or malignant biliary strictures with lateral holes located above and below the obstruction site.
  • Conversion-Ready System: Easily converts to a completely internal stent by capping the external lumen once internal patency and drainage are established.
  • Tissue-Safe Polyurethane Material: Softens at body temperature to conform comfortably to hepatic and duodenal anatomical contours.
  • Radiopaque Accuracy: Fully radiopaque formulation ensures precise alignment of internal side holes across the target stricture under X-ray visualization.

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