Discover our core line of orthopedic screws, stabilizers, surgical instruments, and trauma systems designed for clinical reliability and anatomical alignment.
Virelox Medical Devices Co., Ltd. represents the cutting edge of industrial orthopedic development, operating an ecosystem optimized for high-yield, ISO-compliant implant distribution.
Established with a vision for precision engineering, Virelox Medical Devices Co., Ltd. has grown to become a premium manufacturer specializing in joint replacement systems, internal trauma fixation hardware, and corresponding instrumentation. With 10 years of domestic medical device history and 8 years of international export execution, we align our manufacturing with strict regulatory pathways across Europe, Southeast Asia, South America, and the Middle East.
Our downstream and upstream integration spans over 850 certified raw material suppliers and logistical partners, ensuring material stability (specifically medical-grade Ti-6Al-4V ELI) even under high market volatility.
Understanding the mechanical principles behind cannulated fixation is critical for optimizing surgical outcomes in hip, knee, and extremity stabilization.
Cannulated screws must exhibit high yield strength and fatigue resistance to counter shear stresses in load-bearing applications. Virelox utilizes ASTM F136 Extra Low Interstitial (ELI) Titanium Alloy. The ELI designation represents a pure variant of titanium-aluminum-vanadium that reduces the presence of interstitial elements like carbon, oxygen, nitrogen, and iron. This structural configuration yields:
The primary clinical benefit of a cannulated screw is the ability to place it precisely over a pre-positioned guide wire. However, creating a hollow core alters the screw's polar moment of inertia. Our design department balances the outer thread diameter with the internal cannulation channel to prevent mechanical failure:
| Screw Size (Outer Dia.) | Cannulation Channel Dia. | Recommended Guide Wire | Primary Clinical Application |
|---|---|---|---|
| 2.4 mm / 3.0 mm | 0.9 mm - 1.1 mm | 0.8 mm / 1.0 mm K-Wire | Phalanx, Metatarsal & Scaphoid Fixation |
| 4.0 mm / 4.5 mm | 1.4 mm - 1.6 mm | 1.2 mm / 1.4 mm Guide Pin | Malleolar, Talus & Acetabular Fractures |
| 6.5 mm / 7.3 mm | 2.6 mm - 3.2 mm | 2.0 mm / 2.8 mm Guide Pin | Femoral Neck Fractures, Slipped Capital Epiphysis |
Virelox titanium cannulated screws are manufactured with deep, wide-spaced threads optimized for cancellous bone purchase. Self-tapping and self-drilling cutting flutes at the tip reduce insertion torque and eliminate the need for pre-tapping in most bone densities. Fully threaded configurations ensure maximum holding power across fracture lines, while partially threaded designs act as lag screws, providing controlled interfragmentary compression.
Explore our automated, high-precision workflow. Operating state-of-the-art CNC platforms, Virelox translates design blueprints into biological-grade implant components.
Integrating automated CAD/CAM programming with Swiss-type sliding headstock lathes enables Virelox to produce high-precision cannulated channels down to 0.8 mm in diameter. Our continuous production lines utilize high-pressure oil cooling to control micro-temperatures, ensuring the titanium structure maintains its tensile profile. The integration of UDI (Unique Device Identification) Laser Marking guarantees clinical traceability back to the initial raw titanium batch.
Every batch of cannulated screws undergoes mechanical and physical verification at our in-house lab, ensuring safety profiles that exceed ASTM and ISO guidelines.
Virelox executes strict Quality System validation under ISO 13485 standards. Raw material validation, CMM dimensional mapping, and optical inspection are standard protocol. Our testing laboratory conducts fatigue testing to verify implant lifespan under simulated biological forces. Torsional testing checks maximum insertion torque limit to prevent intraoperative breakage, and tensile testing validates connection interface strength.
Virelox supports large-scale global distributors and OEMs with customized sourcing programs, regulatory documentation, and logistical support.
Entering regulated medical markets requires precise documentation. Virelox provides CE, ISO 13485 certification, biocompatibility protocols (ISO 10993), raw material mill certificates, and surgical protocol manuals. This compliance framework streamlines clearance paths with international regulatory bodies.
We offer comprehensive customization services, tailoring screw pitch, thread profile, and cannulation channels to match your existing proprietary systems. From raw CNC machining to anodized color-coding and complete sterile-barrier blister packaging, our manufacturing capabilities serve as your dedicated off-shore production facility.
The next decade of orthopedic implant design focuses on biological integration. Virelox's research department active areas of focus include:
To accelerate bone-implant interface healing, we are developing HA (Hydroxyapatite) coated titanium threads. Applying chemical deposition or plasma spraying technologies creates a bioactive surface layer. This helps prompt bone cells to colonize the titanium structure, improving implant stability and reducing long-term loosening.
For certain trauma scenarios, removing hardware later creates surgical overhead. Virelox is researching biocompatible magnesium-based alloys. These materials maintain mechanical integrity through the healing cycle, then gradually dissolve and resorb, eliminating secondary hardware removal surgeries.
Using Electron Beam Melting (EBM) and Direct Metal Laser Sintering (DMLS), we can produce custom implants with complex structures. This allows us to print titanium cages and joints with open-cell porous patterns that mimic natural bone geometry, helping support internal vascular growth.
Technical and commercial answers for healthcare procurement managers, distributors, and surgical coordinators.
Explore our complementary spine, hand, foot, and arthroscopic product ranges for comprehensive trauma and joint reconstruction setups.
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