Direct factory supply of sterile, single-use interventional devices matching international hospital and tender specifications.
How Chinese precision medical manufacturing integrates polymer innovation, micro-machining, and scaled cleanrooms to drive down total procedural costs while outperforming ISO 10555 standard baselines.
Catheters are extruded using medical-grade thermoplastic polyurethanes (TPU) and cross-linked PE polymers. Multi-lumen extrusion tooling ensures concentric wall thickness tolerance within ±0.015 mm, eliminating catheter collapse under biliary ductal pressure.
China's medtech clusters integrate raw medical granule formulation, precision pigtail shape-setting fixtures, hydrophilic crosslinking dipping, laser skiving of side holes, and automated blister packaging inside unified GMP Class 100,000 cleanrooms.
Direct OEM/ODM partnerships eliminate multiple layers of regional distributor markups. Buyers secure production capacity exceeding 100,000 sterile units monthly with custom French sizes (5Fr to 12Fr) tailored for competitive tender bidding.
Every batch undergoes rigorous quality-gate screening: tensile fracture tests, biocompatibility (ISO 10993), EO sterilization residual verification (ISO 11135), and complete material pedigree documentation required by EU MDR and international MOH audits.
Standard parameters for Percutaneous Transhepatic Biliary Drainage (PTBD) and Endoscopic Nasobiliary Drainage (ENBD) procedures.
| Catheter Model / Type | Outer Diameter (French) | Effective Length (cm) | Pigtail Loop Design & Side Holes | Guidewire Compatibility | Primary Clinical Application |
|---|---|---|---|---|---|
| PTBD External Locking Pigtail | 7.0 Fr / 8.5 Fr / 10.0 Fr | 35 cm – 50 cm | Mac-Loc / Thread Locking; 6-8 spiral holes | 0.035" or 0.038" | Percutaneous obstructive jaundice decompression; biliary fistulas |
| PTBD Internal-External Drainage | 8.0 Fr / 10.2 Fr / 12.0 Fr | 40 cm – 60 cm | Dual-zone side holes (Duodenal & Biliary) | 0.035" Guidewires | Malignant strictures bridging duct into duodenum |
| ENBD Endoscopic Nasobiliary Catheter | 5.0 Fr / 6.0 Fr / 7.0 Fr | 220 cm – 260 cm | Alpha-loop or J-tip; multi-hole suction cluster | 0.025" / 0.035" Zebra | ERCP therapeutic biliary decompression & cholangiography |
| Straight-Tip Biliary Stent Introducer | 6.0 Fr – 11.5 Fr | 180 cm – 220 cm | Tapered radiopaque tip; rapid-exchange lumen | 0.035" Guidewires | Plastic or metal biliary stent deployment via duodenoscope |
Precision-engineered catheters optimized for diverse anatomical challenges and interventional workflows.
When septic shock threatens ICU patients suffering from acute choledocholithiasis or bacterial cholangitis, emergency transhepatic or nasobiliary drainage provides immediate biliary tree decompression. Large inner lumen diameters avoid viscosity clogging from thick purulent bile.
In advanced cholangiocarcinoma or pancreatic head neoplasm where endoscopic retrograde access fails due to severe duodenal stenosis, ultrasound/fluoroscopy-guided PTBD placement establishes long-term drainage across malignant hylar strictures.
Following laparoscopic cholecystectomy or complex liver resections, iatrogenic bile duct injuries cause localized biloma. Diverting bile away from the leakage site via an internal-external drainage catheter accelerates mucosal regeneration.
Engineered for international B2B distributors, hospital groups, and medical brand owners demanding continuous regulatory and delivery compliance.
From custom heat-shrink marker placements, laser shaft graduation, to regional packaging design (multilingual IFUs, CE barcode serialization, sterilization indicator pouches), our factory delivers hospital-ready products that elevate brand loyalty.
Government and public health tenders in Southeast Asia, Latin America, and the Middle East demand rigorous mechanical test reports. We supply ISO 10555-1 tensile strength data, corrosion resistance audits, and flow rate characterization curves for direct dossier submission.
Sourcing fragmented endoscopic accessories inflates shipping and customs costs. ZhuoRuiHua Medical consolidates biliary drainage catheters, sphincterotomes, stone retrieval baskets, and hemoclips into single-shipment containers, streamlining import duties.
Clear technical insights for hospital engineering departments, procurement directors, and surgical distributors.
Comprehensive single-use endoscopic instruments engineered under unified quality gates for maximum surgical efficacy.
