2.7mm & 3.5mm Headless Cannulated Screws
Ideal for scaphoid fractures and osteochondral trauma. Variable pitch design provides continuous interfragmentary compression without soft tissue impingement.
The Cannulated Screw System developed by Orthovana Medical Co., Ltd represents a benchmark in minimally invasive orthopedic surgery (MIS). Designed specifically for percutaneous placement over precision guide wires, our titanium screw series addresses the mechanical demands of lag-compression physics, torsional shear resistance, and pullout stability across cancellous and cortical bone matrices.
Every single cannulated screw is Swiss CNC-machined from implant-grade Titanium Alloy (Ti-6Al-4V ELI per ASTM F136). The longitudinal inner bore is engineered with microscopic concentricity, guaranteeing effortless guide wire passage without intra-operative binding, axial displacement, or metallic debris generation.
Anatomical & System Metrics
Designed for delicate carpal, tarsal, and phalangeal osteotomies, including scaphoid fractures and distal radius osteotomies with low-profile countersunk heads.
Optimized for ankle arthrodesis, tibial plateau fractures, distal humerus injuries, and calcaneal trauma requiring strong interfragmentary compression.
High-load bearing solutions engineered for intracapsular femoral neck fractures, slipped capital femoral epiphysis (SCFE), and sacroiliac joint dislocations.
| Screw Diameter | Core Diameter | Guide Wire OD | Thread Configurations | Length Range | Primary Clinical Indications |
|---|---|---|---|---|---|
| 2.7 mm Mini | 1.8 mm | 1.0 mm | Partial / Full Thread | 10 mm – 30 mm | Scaphoid, Metacarpal, Metatarsal & Small Bone Fractures |
| 3.5 mm Small | 2.4 mm | 1.25 mm | Partial / Full Thread | 12 mm – 50 mm | Distal Radius, Calcaneus, Tarsal & Pelvic Avulsion Fixation |
| 4.0 mm Small | 2.6 mm | 1.35 mm | Short / Long Thread | 14 mm – 60 mm | Medial Malleolus, Tibial Plateau & Femoral Head Osteotomies |
| 4.5 mm Medium | 3.0 mm | 1.6 mm | Partial / Full Thread | 20 mm – 80 mm | Subtalar Arthrodesis, Tibial Shaft & Glenoid Neck Fixation |
| 6.5 mm Large | 4.5 mm | 3.2 mm | 16mm / 32mm Thread | 30 mm – 120 mm | Femoral Neck, Sacroiliac Joint & Intercondylar Femur Fractures |
| 7.3 mm Large | 4.8 mm | 3.2 mm | 16mm / 32mm / Full | 40 mm – 130 mm | High-Energy Pelvic Ring Disruptions & Femoral Neck Compression |
Engineered to seamlessly integrate with modular surgical trays, matching drill bits, and trocar-tipped guide wires for complete intra-operative flexibility.
Anatomical coverage for percutaneous fixation
Ideal for scaphoid fractures and osteochondral trauma. Variable pitch design provides continuous interfragmentary compression without soft tissue impingement.
Featuring deep self-tapping flutes and reverse-cutting threads. Optimized for calcaneal osteotomies, ankle arthrodesis, and tibial plateau reconstruction.
Engineered for high load-bearing applications in femoral neck and pelvic ring fractures. Available with standard washer configurations to prevent cortical sinking.
Complete instrumentation including parallel wire guides, cannulated countersinks, direct measuring gauges, and torque-limiting screwdrivers.
Insights for global orthopedic distributors, hospital procurement boards, and OEM partners evaluating next-generation fixation systems.
Traditional partially threaded screws rely heavily on shank friction against proximal cortex to achieve lag forces. Future procurement trends show a shift toward headless variable-pitch designs. By varying the thread pitch between the leading and trailing tips, the screw automatically compresses the fracture line as it advances. Orthovana Medical Co., Ltd leads this transition by integrating automated CNC variable-pitch milling, offering maximum compression without leaving proud screw heads that cause tendon irritation.
As computerized image-guided surgery (IGS) and robotic trauma arms proliferate, cannulated screws require tighter geometric tolerances. Screws manufactured by Orthovana Medical Co., Ltd undergo optical 3D laser inspection to ensure 100% axial alignment with robotic wire drivers.
Surface modification plays a crucial role in preventing galling and micro-fretting under cyclic load. Advanced Type II electrochemical anodization creates a dense titanium oxide layer, boosting dynamic fatigue resistance by up to 28% compared to standard untreated titanium.
Global hospital networks are increasingly mandating factory-sealed, pre-sterilized screw cartridges with embedded UDI barcode tracking. Orthovana Medical Co., Ltd provides validated ISO 11607 sterile barrier packaging solutions to eliminate hospital reprocessing costs.
Distributors are moving away from fragmented vendors. Partnering with Orthovana Medical Co., Ltd enables unified procurement across trauma plates, spinal systems, and cannulated screws under a single audited ISO 13485 quality system.
We bridge raw material science, state-of-the-art multi-axis CNC Swiss machining, and comprehensive international regulatory documentation.
Plates and cannulated screws are machined exclusively from certified Ti-6Al-4V ELI (ASTM F136) and Commercially Pure Titanium (ASTM F67). Every raw bar shipment is verified via spectral chemical analysis and microstructural grain testing.
Our ultra-precision multi-axis Swiss CNC turning centers ensure seamless concentricity along the entire length of the internal cannulated channel, preventing guide wire binding during high-stress procedures.
We supply complete technical dossiers (STED format), material testing certificates, biological evaluation reports (ISO 10993), IFUs, and labeling samples to help distributors speed up local MOH registrations.
Orthovana Medical Co., Ltd provides custom laser-marking for sizing and branding, tailored anodization color-coding, customized surgical instrument trays, and private-label packaging configurations.
Read direct evaluation feedback from orthopedic surgeons, procurement leads, and distributor partners.
Essential technical, clinical, and commercial answers for orthopedic device importers and hospital procurement teams. Contact our technical team at [email protected] for custom project consultations.
All screws manufactured by Orthovana Medical Co., Ltd undergo rigorous mechanical evaluation matching ASTM F543 standards. This includes testing for axial pullout strength, torsional yield stress, insertion/removal torque, and fatigue life under dynamic cyclical loads. Test reports are available to authorized distributors upon request.
Our central cannulation bore maintains a microscopic concentric tolerance within +0.03mm/-0.00mm. This precision guarantees that standard stainless steel guide wires pass smoothly through the implant without intra-operative binding, jamming, or metallic shaving generation during percutaneous insertion.
Partially threaded cannulated screws are designed to generate maximum interfragmentary lag compression across fracture lines (e.g., femoral neck fractures, medial malleolus fractures) because the threads purchase only in the distal fragment while the smooth shaft slides in the proximal cortex. Fully threaded variants are used for structural fixation, osteotomy stabilization, or bridging where compression is not clinically desired.
Yes. Orthovana Medical Co., Ltd provides full OEM and private-label manufacturing capabilities. This includes proprietary thread pitches, customized socket drives (Star/Torx or Hexagonal), unique anodization color codes, custom laser-etched branding, and custom-configured sterilization tray assemblies.
Our standard cannulated screws are machined from high-strength Ti-6Al-4V ELI titanium alloy conforming to ASTM F136. This material provides optimal biocompatibility, high fatigue strength, lightweight characteristics, and significantly reduced MRI artifact interference compared to conventional stainless steel implants.
Registered international buyers receive comprehensive documentation packages, including ISO 13485 quality certificates, raw material mill certificates, mechanical testing dossiers, sterilization validation data, Instructions for Use (IFU), labeling artwork, and full lot-level traceability records.
Partner with Orthovana Medical Co., Ltd for precision-machined titanium cannulated screw systems, complete instrument sets, and reliable global supply chain execution. Send your requirements to [email protected].