Hangzhou Retra Medical Co., Ltd. is a leading manufacturer of high-performance medical metals and orthopedic implants, specializing in Medical Titanium, Stainless Steel, CoCrMo, Tantalum, and Nitinol. With a strong commitment to research, development, and precision manufacturing, Retra Medical has become a trusted partner for hospitals, clinics, and medical device companies worldwide.
Retra Medical emphasizes innovation and quality control, combining advanced production techniques with rigorous testing to ensure every implant delivers reliable performance and patient safety. The company also provides customized solutions tailored to specific clinical needs, supporting minimally invasive surgery, complex trauma repair, and long-term implant success.
The manufacturing of Nitinol (Nickel-Titanium) microtubing represents the pinnacle of metallurgical engineering. As a shape-memory alloy (SMA), Nitinol exhibits unique properties: Superelasticity and the Shape Memory Effect, which are critical for minimally invasive medical devices.
Utilizing high-purity NiTi alloys (ASTM F2063) to ensure biocompatibility and fatigue resistance. We control transformation temperatures (Af) with precision of ±2°C to match specific clinical requirements.
Advanced cold-drawing processes integrated with vacuum annealing to achieve ultra-thin walls (down to 0.05mm) while maintaining concentricity and surface integrity.
Proprietary electropolishing (EP) and chemical passivation techniques that enhance the protective TiO2 layer, ensuring superior corrosion resistance within the human body.
In the current global medical landscape, the demand for Nitinol microtubing is surging, driven by the shift toward Minimally Invasive Surgery (MIS). While traditionally dominated by Western manufacturers, China's Nitinol industry—led by pioneers like Retra Medical—has bridged the gap through massive R&D investment and vertical supply chain integration.
Nitinol microtubing is not just a component; it is an enabler for life-saving medical interventions. Our products are optimized for the following specialized applications:
Used in the construction of micro-stents for brain aneurysm treatment and mechanical thrombectomy devices. The flexibility of Nitinol allows navigation through the highly tortuous vessels of the brain.
Essential for Transcatheter Aortic Valve Replacement (TAVR) frames. Our tubing provides the high radial force and collapse-resistance required for heart valve longevity.
Used in flexible biopsy forceps and steerable catheters. The "kink-resistant" nature of Nitinol ensures that tools remain functional even when bent at extreme angles.
As part of Retra Medical’s core expertise, Nitinol tubes are used in dynamic fixation systems that mimic the natural modulus of bone, reducing "stress shielding" effects.
Why choose a Chinese manufacturer for Nitinol Microtubing? The answer lies in the "Integrated Ecosystem Advantage." Hangzhou Retra Medical leverages the proximity to high-grade raw material refineries and specialized tooling clusters to provide unmatched value.
| Feature | Retra Medical Advantage | Global Impact |
|---|---|---|
| Lead Times | 4-6 Weeks (Standard) | 30% faster than traditional Western suppliers |
| Customization | Low MOQ for Prototypes | Accelerates R&D cycles for medical startups |
| Quality Control | 100% Eddy Current Testing | Eliminates micro-cracks and material defects |
| Price Efficiency | Economies of Scale | Significant cost reduction for high-volume stent production |
The company offers a comprehensive range of orthopedic and surgical implants, including joint replacement components, spinal systems, trauma plates and screws, maxillofacial reconstruction devices, and custom implant solutions. All products are manufactured using surgical-grade metals that ensure biocompatibility, durability, and corrosion resistance, meeting the stringent standards of the global healthcare industry.
We are currently researching Ternary Nitinol Alloys (NiTiNb, NiTiCo) to provide even higher radiopacity and fatigue life. This will allow for thinner struts in stents without losing visibility under X-ray (Fluoroscopy).
As we look toward 2030, the integration of Nitinol microtubing with 3D additive manufacturing (4D Printing) will allow for personalized implants that change shape in response to body temperature, providing a perfect fit for complex bone trauma.
Our "Green Factory" initiative aims to reduce the environmental footprint of electropolishing by implementing closed-loop acid recycling systems, ensuring that your supply chain is as ethical as it is efficient.
Guided by the principles of "quality first, innovation-driven, customer-oriented," Hangzhou Retra Medical has earned an excellent reputation both domestically and internationally. With a dedicated R&D team, modern production facilities, and professional after-sales support, the company continues to advance the orthopedic and surgical implant industry.
We can manufacture microtubing with an Outer Diameter (OD) as small as 0.20mm with wall thicknesses down to 0.03mm, depending on the alloy grade.
Yes, we specialize in customizing the Af temperature between -20°C and +100°C to ensure the device performs correctly at body temperature.
All our Nitinol materials meet ASTM F2063 standards. We also offer validated electropolishing services to ensure a biocompatible oxide layer.
We are ISO 13485:2016 certified, and our products are manufactured in compliance with CE and FDA quality system requirements.
Absolutely. We support "Fast-Track Prototyping" for research institutions and medical device startups to test their designs quickly.
Typically 4-8 weeks for manufacturing and 5-7 days for air freight delivery to Europe, North America, or Southeast Asia.
Retra Medical
