Ruthless LLC

Ruthless Spine manufactures the RJB™, an intraoperative surgical angle measurement tool designed for lumbosacral pedicle screw placement procedures. The RJB system measures axial and sagittal angles of surgical instruments relative to gravity in real-time, providing surgeons with precise angle tracking during spinal surgery. The device connects via Bluetooth to standard tablets (Android OS 10+ or iOS 14+) and displays real-time visualization of instrument trajectory in two planes. The RJB offers a cost-effective alternative to traditional surgical navigation systems, eliminating the need for expensive, bulky imaging equipment while maintaining ease of use with minimal training requirements and simple 30-second setup. Each single-use RJB module provides up to 8 hours of continuous operational use. The device is FDA-cleared (De Novo clearance DEN230012) as a measurement tool and does not provide surgical guidance, navigation, or assistance against patient anatomy. Ruthless Spine positions the RJB as an elegant, efficient solution addressing the barriers—cost, complexity, and learning curve—associated with conventional surgical navigation for spine procedures.