ZNG Medical
Explore our CE-approved and ISO-certified precision medical instruments, engineered for sterile fluid collection, anesthesia, and smart monitoring systems.
The global healthcare sector demands absolute precision in fluid management, sterile delivery, and bio-filtration technologies. Custom OEM filtration systems are critical in ensuring biological separation, particulate filtration, and sterile processing across pharmaceutical manufacturing, clinical labs, and hospital care units. Today’s procurement strategies focus heavily on finding ISO 13485 compliant factories that can bridge the gap between high-volume plastic injection molding, bio-compatible materials selection, and sterile fluid loop assembly.
Whether dealing with negative-pressure wound drainage loops (acting as mechanical fluid filters), blood collection media filtration, or anesthesia breathing system circuit filtration, manufacturers must ensure zero particulate shedding. Materials such as medical-grade silicone, biocompatible PVC, and specialized polymer membranes form the foundation of these systems. As regulatory paths become more complex under FDA MDR and CE regulations, global medical brands are transitioning from basic suppliers to specialized OEM integration partners capable of offering complete, traceable manufacturing solutions from design to sterile packaging.
Utilizing high-grade liquid silicone rubber (LSR) and medical-grade PVC to prevent patient contamination and maintain strict fluid purity standards.
Validating EtO, Gamma, and steam sterilization parameters to ensure a sterile barrier that resists degradation over long storage cycles.
Full conformance to ISO 13485, CE directives, and cleanroom production (Class 100,000/ISO 8) to bypass market entry bottlenecks.
Founded in 1996, Zhejiang ZNG Medical has positioned itself at the cutting edge of global medical device manufacturing, focusing on high-precision injection-molded components, complex needle assemblies, and sterile fluid loop systems. Over nearly three decades, ZNG has earned a reputation for technical precision, operating under a robust ISO 9001 and ISO 13485 framework coupled with CE certification to deliver safe, effective medical solutions to international markets.
Originally recognized for our advanced needles manufacturing capability, ZNG has expanded its OEM/ODM capabilities into integrated clinical fluid delivery systems, blood collection technology, and postoperative drainage systems. Our core mission is aligned directly with global public health needs. By actively collaborating with distributors, clinical engineers, and procurement managers, we translate clinical feedback into tangible design improvements, optimizing needle sharpness, fluid flow paths, and device usability.
Established Year
Quality Standard Certified
Sterile Cleanrooms
OEM/ODM Customization
Precision fluid management requires interface components built to strict tolerances. At ZNG Medical, our engineering expertise spans a vast range of specialty needle structures and custom injection configurations designed to interface with fluid systems, filters, and biological bags:
A transparent, structured development cycle ensuring quality assurance from initial conceptual design to finalized global delivery.
Our engineering team gathers detailed customer specifications and target applications.
We provide a comprehensive cost breakdown including mold tooling and piece price.
Standard or prototype samples are sent to verify dimensional and physical compatibility.
The purchase order is finalized, confirming volume, lead time, and shipping terms.
Proforma Invoice is generated to lock in project terms and billing milestones.
Once the deposit is secured, raw material allocation and tooling adjustments begin.
Mass production starts inside cleanrooms with automated extrusion and assembly.
We share real-time updates and packaging photos for tracebility and remote QA checks.
Final inspection reports are sent and balance payment processed before dispatch.
Liaising with top freight carriers to secure optimal transit routes and custom lanes.
Consignments are carefully dispatched from port with continuous tracking updates.
Original BL, Certificate of Analysis, and Customs Clearance paperwork are dispatched.
For global medical brands, partnering with established Chinese medical injection factories yields significant strategic advantages. Zhejiang’s industrial cluster benefits from highly integrated supply chains, providing immediate access to medical-grade raw polymers, SUS304/SUS316L stainless steel tubing, and advanced mold-making equipment. This allows ZNG Medical to optimize production speeds and keep mold development costs significantly lower than in Western Europe or North America.
In addition to cost savings, Chinese medical factories have made massive strides in automation. ZNG utilizes high-speed assembly systems for needle-hub joining, fluid line extrusion, and blister-pack sealing. These automated processes dramatically reduce manual handling, ensuring that contamination risk is minimized. Crucially, this high output does not compromise quality, as our cleanrooms maintain strict environmental controls conforming to global cleanroom standards.
Witness our state-of-the-art cleanroom manufacturing, tooling facilities, and strict quality verification protocols.











Medical OEMs require localized flexibility to address distinct clinical environments. Fluid management products must adapt to local healthcare infrastructure:
Clinical Environments & Hospitals: Hospital wards require intuitive negative-pressure wound drainage systems that prevent retrograde infection. Simple visual indicator lines and secure-lock valves prevent accidental leakage of biological waste. In contrast, operating rooms demand high-precision catheter mounts that interface seamlessly between ventilators and endotracheal tubes, ensuring no flow restriction or gaseous leakages.
Homecare & Diagnostics: The shift toward decentralized patient monitoring (such as glucose tracking systems) has driven demand for pain-free micro-needle sets and sterile diagnostic accessories. Integrating medical-grade filtration into these homecare devices ensures that external contaminants do not affect sensitive enzymatic biosensors, guaranteeing reading accuracy and patient safety.
Technical answers to key product design, material validation, and OEM sourcing questions.
Our production facilities utilize Class 100,000 (ISO Class 8) cleanrooms equipped with continuous particulate monitoring, strict pressure-gradient controls, and automated HEPA filtration systems to ensure complete compliance with medical-grade product assembly requirements.
We source medical-grade polymers that meet USP Class VI biocompatibility requirements, ISO 10993 cytotoxicity, sensitization, and intracutaneous reactivity benchmarks. Detailed Material Test Certificates (MTC) and Certificate of Analysis (COA) sheets are provided with every shipment.
Yes. Our in-house mold facility specializes in high-precision micro-injection molding and custom cannula geometric sharpening. Customers need only supply 2D/3D CAD models or physical samples, and our engineers will manage the manufacturing feasibility review and prototyping.
We offer both Ethylene Oxide (EtO) and Gamma Irradiation sterilization methods, backed by complete validation protocols including residual gas detection (for EtO) and dosing validation to ensure Sterility Assurance Level (SAL) of 10^-6.
For custom mold development, initial prototypes are typically ready within 30 to 45 days. Upon sample approval and receipt of the deposit, production is scheduled with a typical lead time of 30 days depending on the volume and batch packaging requirements.
Discover more products, including clinical monitoring tools, CE-marked EDTA vacuum blood collection tubes, and closed negative-pressure drainage systems.