S2 Alar Iliac (SAI) Screw Instrument Set

This streamlined instrument set is specifically crafted for minimally invasive SAI iliac screw placement within the L5–S1 segment and lumbopelvic stabilization procedures. 

It includes essential tools needed to address the critical challenges of percutaneous iliac screw placement—such as precise entry-point localization, controlled deep bony tract preparation, confined-space insertion, and secure high-torque locking. 

Constructed with high-strength stainless steel and featuring surface-hardened drills, the system facilitates smooth, accurate placement through dense ilium bone under image guidance. 

The design achieves effective, low-tissue-damage implantation—ideal for procedures like lumbosacral fusion, complex deformity corrections, tumor-related reconstructions, and long-segment spinal stabilization.

• Durable, Low-Friction Construction: Made from fatigue-resistant stainless steels (e.g., 316L, 420B) with polished finishes to reduce soft tissue abrasion.
• Safe Percutaneous Localization: Rounded-tip guidewire enables precise and secure navigation through complex SI joint anatomy, avoiding neurovascular structures.
• Stepped, Self-Drilling Tap System: Dual-diameter self-tapping tools (7.5 mm & 8.5 mm) provide progressive and efficient canal formation in dense pelvic bone within a single pass.
• Modular Screw Insertion Driver: The detachable driver allows angle adjustments and X-ray imaging during insertion in tight spaces and ensures accurate trajectory placement.
• High-Torque Locking Support: Combines a contra-angle driver with the insertion tool to deliver stable, torque-resistant fixation without screw slippage or back-out.

• Enhanced Precision & Safety: Blunt guidewire minimizes risk to nearby neurovascular structures, while the modular driver permits precise, image-guided insertion in millimeter accuracy.
• Superior Efficiency in Bone Canal Preparation: One-step, stepped tap reduces operative time and device exchanges—ideal for navigating tough pelvic bone.
• Breakthrough in Deep-Field Access: Detachable driver achieves reliable manipulation and visual confirmation in narrow fields, overcoming “blind zone” challenges of traditional instrumentation.
• Reliable Multi-Newton Fixation: Dual-tool torque system ensures a firm and stable locking interface, avoiding screw loosening in high-load lumbopelvic constructs