Engineered for seamless compatibility across Olympus, Pentax, Fujifilm, and leading global endoscope channels. Directly manufactured within our class 100,000 cleanroom environments.
A rigorous industrial perspective on why tier-1 surgical hospitals, clinical group purchasing organizations (GPOs), and private label brand holders are recalibrating their supply chains toward certified ODM manufacturers.
Complex mechanical lumens, braided nitinol joints, and micro-sheaths present severe reprocessing challenges. Nosocomial infections caused by multidrug-resistant pathogens (such as CRE outbreaks linked to reprocessed duodenoscopes and ERCP tools) have prompted healthcare ministries worldwide to enforce single-use, gamma/EO-sterilized basket extraction consumables.
Traditional Dormia baskets carried significant risk of biliary duct perforation and mucosal avulsion during impaction. Modern ODM specifications mandate tip-less or hemispherical bullet-nose configurations with zero-profile distal laser welds, allowing high-capture efficiency in tortuous intrahepatic ducts or calyces without tissue entrapment.
Under value-based care and DRG reimbursement structures in North America, Europe, and Latin America, surgical centers demand hospital-grade instrument reliability at accessible per-procedure margins. Direct-from-source ODM manufacturing eliminates three to four intermediary markups while maintaining strict ISO 13485 compliance.
The biomechanical efficacy of a Dormia basket depends on the delicate balance between thermal shape memory, radial expansion force, and torsional responsiveness within angulated endoscopic working channels.
Our baskets use premium medical-grade Nitinol heat-treated to an Austenitic finish temperature (Af) optimized between 18°C and 25°C. This ensures instantaneous radial basket blooming immediately upon deployment from the catheter, retaining 100% of its initial memory geometry even after severe mechanical deformation.
Achieving true 1:1 torque responsiveness requires high-tensile 304V stainless steel multi-strand inner drive cables combined with customized laser-welded adapters. Rotational wrist torque applied at the control handle translates directly to the basket head, facilitating rapid stone snaring in tight common bile ducts.
Sheath friction is eliminated through precision co-extruded PTFE/FEP compound outer tubes. The low coefficient of friction guarantees fluid scope channel passage even through severe 180° retroflexion positions encountered during challenging ERCP and flexible ureteroscopy procedures.
Unambiguous visualization under C-arm fluoroscopy and direct endoscopic illumination. Heavy-element radiopaque markers precision-swaged at both the distal tip and proximal basket collar guarantee instantaneous verification of full basket deployment and stone lock status.
Comprehensive engineering parameters available for private-label customization, tender matching, and regulatory file preparation.
| Clinical Target | Outer Diameter (Fr / mm) | Working Length | Basket Configuration | Wire Geometry | Features & Compatibility |
|---|---|---|---|---|---|
| ERCP Biliary Stone Retrieval | 1.8 Fr – 3.0 Fr (0.6mm – 1.0mm) |
1950 mm – 2100 mm | 4-Wire Diamond / Hexagonal / Helical Spiral | Nitinol Flat / Round wire options | Integrated injection port for contrast medium; compatible with standard 0.035" and 0.025" guidewires. |
| Emergency Mechanical Lithotripsy | 4.0 Fr – 4.5 Fr (1.35mm – 1.5mm) |
1800 mm – 2000 mm | Heavy-duty 4-Wire Hexagonal Crush Cage | High-tensile stranded stainless steel / NiTi hybrid | Reinforced emergency crush sheath attachment; breaks stones up to 2.5 cm directly at the ampulla. |
| Flexible Ureteroscopy (fURS / RIRS) | 1.5 Fr – 2.2 Fr (0.5mm – 0.73mm) |
1150 mm – 1300 mm | Tipless Nitinol 4-Wire / 6-Wire Micro Basket | Ultra-fine flat Nitinol wire (0.003"–0.005") | Tipless design enables direct calyceal stone engagement off the urothelium without mucosal tearing. |
| Cholangioscopic Direct Extraction | 1.2 Fr – 1.5 Fr (0.4mm – 0.5mm) |
2200 mm – 2400 mm | Miniature 3-Wire / 4-Wire Helical Cage | Superelastic Nitinol Micro-Filament | Calibrated specifically for 1.2 mm auxiliary channels of ultra-thin single-operator cholangioscopes. |
Moving beyond transactional commodity manufacturing to deliver systemic clinical solutions, tender optimization, and lifecycle security.
Navigating global public procurement tenders requires extensive empirical documentation. We arm our distributor network with complete mechanical tensile test reports, biocompatibility certification (ISO 10993 cytotoxicity, irritation, acute systemic toxicity), aging verification reports (3-year real-time and accelerated shelf-life studies), and comparative dimensional benchmark studies.
Packaging integrity is fundamental to patient safety. Our fully automated blister-forming and ultrasonic sealing facilities utilize medical-grade DuPont™ Tyvek® and peelable polyethylene pouches. We support customized multi-language labeling, GS1 DataMatrix 2D barcodes, and personalized OEM carton branding fully harmonized with European UDI and FDA GUDID tracking mandates.
When custom anatomical challenges or localized clinical preferences require proprietary modifications (such as altered wire angles, specialized handle ergonomic ratchets, or hybrid multi-lumen flushing ports), our internal tooling workshop executes prototyping, rapid 3D tooling, and clinical evaluation iterations within 3 to 6 weeks.
How Jiangxi ZhuoRuiHua Medical Instrument Co., Ltd. is actively shaping the future of minimally invasive stone management.
As robotic platforms for flexible ureteroscopy and duodenoscopy proliferate, catheter tracking forces and handle interfaces require automated actuation. We are collaborating with robotic surgical innovators to design standardized quick-release clip couplings and ultra-responsive low-hysteresis drive systems that eliminate micro-backlash during robotic claw manipulation.
Historically, a trapped stone refractory to mechanical crushing posed significant surgical risks. We are developing proprietary hybrid catheters that allow concurrent delivery of a 200μm Holmium:YAG or Thulium Fiber Laser (TFL) fiber directly through the central axis of an open Dormia basket, enabling real-time stone fragmentation without basket disengagement.
In accordance with emerging environmental and patient safety directives, we have implemented low-temperature vaporized hydrogen peroxide (VHP) validation alongside our advanced aeration-accelerated Ethylene Oxide systems, reducing sterilant residuals well below 1.0 μg/g while transitioning to halogen-free bio-compatible medical polymers.
Enterprise-grade traceability, cleanroom manufacturing standards, and clinical quality control verified across major regional health authorities.
Comprehensive technical documentation, post-market surveillance (PMS) pathways, Periodic Safety Update Reports (PSUR), and clinical evaluation reports (CER) fully structured to satisfy notified body audits under modern European Medical Device Regulation requirements.
Product designs, risk management protocols (ISO 14971), design controls, and device master records (DMR) strictly architected to support private-label substantial equivalence submissions, predicate device benchmarking, and GUDID medical device identification registrations.
Every phase of development, incoming raw material verification (spectrometric metal validation), automated precision coil assembly, laser welding, and packaging takes place inside certified Class 100,000 (ISO Class 8) cleanrooms subjected to continuous microbiological monitoring.
From metallurgical batch certificates for raw Nitinol ingots through to specific Ethylene Oxide biological indicator (Bacillus atrophaeus) sterilization run records, every discrete unit carries permanent digital serialization guaranteeing total post-sale traceability.
In-depth answers addressing design tolerances, regulatory scopes, MOQ requirements, and OEM contract protocols.
Our core competitive advantage lies in vertical manufacturing integration. We control the complete metallurgical heat treatment, shape-setting fixture design, diamond wire micro-grinding, and sheath co-extrusion in-house. This gives distributors exact control over mechanical bloom pressure, true 1:1 torque responsiveness, and the choice between tipless or hemispherical atraumatic profiles, eliminating unpredictable sourcing quality and sub-tier markups.
Yes. We offer specialized Emergency Mechanical Lithotripsy models featuring reinforced stranded steel-core wire and specialized distal swaged junctions rated to withstand tensile forces in excess of 200 Newtons. In the event of acute biliary impaction, our basket handles can be detached and paired directly with external metal crush coils to crush calcified stones without necessitating surgical conversion.
We provide full turnkey private labeling. Our cleanroom facilities package devices in certified medical-grade Tyvek® blisters with client-branded inner labels, multilingual Instructions for Use (IFU), and custom outer shelf boxes. All finished configurations are subjected to validated Ethylene Oxide (EO) sterilization (ISO 11135) or supplied bulk non-sterile for regional cleanroom packaging facilities according to partner preference.
For standard catalog configurations carrying private labeling, our baseline MOQ begins at 500 units per specification. For bespoke custom designs involving dedicated extrusion dies or proprietary basket geometry tooling, MOQs typically range from 1,000 to 2,000 units. Standard production cycles run between 30 and 45 calendar days following pilot batch verification and packaging artwork sign-off.
Our quality control engineers perform automated 100% optical inspection on basket geometries using computerized vision systems, verifying strut spacing, symmetrical opening radius, and absence of micro-burrs. Furthermore, each lot undergoes simulated tortuous channel testing through 180° tortuosity test rigs to verify deployment force, retractability, and kink resistance before lot release documentation is approved.
Absolutely. We furnish complete regulatory dossiers including ISO 13485 certificates, CE documentation, sterilization validation reports (EN 556-1 / ISO 11135), ISO 10993 biocompatibility testing, shelf-life packaging aging validation, risk analysis matrices (ISO 14971), and detailed design specifications directly to your regulatory affairs team to expedite national import licenses.
Complementary single-use therapeutic instrumentation engineered under identical stringent medical manufacturing benchmarks.
Partner directly with Jiangxi ZhuoRuiHua Medical Instrument Co., Ltd. for sample validation batches, OEM technical file reviews, or regional distribution agreements. Direct factory pricing, dedicated regulatory support, and clinical-grade reliability.
