Explore our premium selection of spinal, trauma, and orthopedic implants engineering dynamic bone fixation stability.
In the highly specialized ecosystem of orthopedic implants, bone screws serve as critical anchoring foundations. As international healthcare providers demand ever-higher fatigue resistance and biocompatibility, Virelox Medical Devices Co., Ltd. stands as a benchmark manufacturer. We bridge the gap between advanced material science and high-volume clinical supply.
Our comprehensive approach optimizes the mechanical performance of cortical, cancellous, and headless cannulated bone screws. Utilizing medical-grade titanium alloys and ultra-precise Swiss CNC machining, we offer surgical solutions that streamline implantation, optimize osseointegration, and minimize revision rates.
Our ISO 13485-compliant manufacturing lifecycle leverages raw material selection, advanced milling, and multi-axis CNC processing to guarantee micron-level structural accuracy.
Delivering extreme reliability through structured mechanical validation and custom-tailored alloy formulations.
We source ultra-pure Titanium Ti-6Al-4V ELI (ASTM F136) and biocompatible Polyetheretherketone (PEEK-OPTIMA). These materials offer optimized strength-to-weight ratios and match human bone's modulus of elasticity, preventing stress-shielding and improving structural osseointegration.
Through finite element analysis (FEA), we design specialized dual-lead, self-tapping thread geometries. This decreases insertion torque requirements by 35% while increasing pull-out strength in osteoporotic bone, providing stable primary mechanical fixation.
Our Type II and Type III anodizing technology modifies bone screw surface oxide layer thickness. This color-codes sizing, increases fatigue limits, and forms a dense passivation layer that prevents ion leaching and supports tissue biocompatibility.
Selecting the ideal orthopedic screw geometry is critical to surgical outcomes. Cortical screws, designed with smaller thread pitches and shallower thread depths, maximize purchase in dense cortical bone. Conversely, cancellous screws feature deeper threads and larger pitches to anchor in porous trabecular environments. Headless cannulated screws utilize differential pitch designs, compressing bone fragments across fractures as the screw is driven home.
| Screw Type | Typical Pitch (mm) | Core-to-Outer Ratio | Primary Indication | Insertion Mechanics |
|---|---|---|---|---|
| Cortical Screw | 1.00 - 1.25 | ~ 75% | Dense Diaphyseal Bone | Pre-tapped, high radial compression |
| Cancellous Screw | 1.75 - 2.00 | ~ 55% | Metaphyseal Fractures | Self-tapping, high purchase area |
| Cannulated Headless | Variable / Variable | Dual Core | Intra-articular Fractures | Guide-wire directed, interfragmentary compression |
How Virelox aligns with high-volume buyers, global distributors, and hospital procurement departments.
We customize screw head shapes (hexagonal, star, or cruciform), thread configurations, and surface coatings to meet specific clinical requirements, providing rapid prototyping and biomechanical verification.
With a network of over 850 certified upstream raw material and component suppliers, we maintain stable production volume and consistent pricing, minimizing global healthcare procurement lead times.
We provide full documentation support—including ISO 13485 audits, CE certifications, and sterilization validation dossiers—to streamline regulatory approval in global markets.
Our inspection center utilizes advanced testing systems to ensure all products comply with FDA, CE, and ISO directives.
Our dedicated laboratory performs 100% optical inspection on thread pitches and core concentricity using advanced visual coordinates tools. This eliminates stress concentration areas that can cause mechanical failure during implantation.
We conduct dynamic fatigue tests based on ASTM F382/ISO 9585 standards, simulating hundreds of thousands of load cycles. This guarantees our plates and screws withstand the biomechanical stresses of patient mobilization.
Full material tracing via laser-etched Unique Device Identifier codes.
Ethylene Oxide (EO) and Gamma irradiation sterilization protocols.
Audited quality management system tailored for medical devices.
Technical and commercial answers for orthopedic distributors, purchasing managers, and clinical engineering departments.
Explore additional advanced implants and instruments designed for reconstructive, trauma, and spine surgery.
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