Yangtze INS Hip Joint Replacement Navigation System

Recognized as the world’s first approved self-sensing handheld orthopedic surgical robot, the Yangtze INS Hip Joint Replacement Navigation System from Chunli Medical provides computerized guidance for total hip arthroplasty without employing robotic arms. The system’s self-sensing technology monitors instrument position in real-time, enabling precise acetabular preparation and femoral component placement while maintaining direct surgeon control.

Product Overview

Total hip arthroplasty requires accurate preparation of the acetabulum (hip socket) and femoral canal to achieve optimal implant positioning. Cup orientation affects stability, range of motion, and long-term wear patterns, while stem alignment influences load distribution and fixation quality. Traditional surgery depends on surgeon experience and mechanical guides, with variability in outcomes across practitioners.

The Yangtze INS hip navigation platform addresses these challenges through self-sensing handheld instruments that track position and orientation during surgical preparation. Rather than using robotic arms that physically guide tools, the system provides navigation feedback that surgeons interpret while maintaining full manual control.

This design earned recognition as the world’s first approved self-sensing handheld orthopedic surgical robot, distinguishing it from both conventional robotic arm systems and passive navigation technologies.

Key Features

Self-Sensing Technology: Instruments actively monitor their own position and orientation relative to anatomical landmarks and planned component positions. This real-time sensing enables continuous feedback without requiring external tracking cameras in certain configurations.

Handheld Operation: Surgeons maintain direct control of reaming and preparation instruments. The system provides guidance information rather than constraining or directing physical movement.

Acetabular Preparation Guidance: Real-time feedback on reamer position, depth, and orientation helps achieve planned cup inclination and anteversion angles.

Femoral Preparation Support: Navigation assistance for canal preparation and stem positioning to optimize alignment and fit.

Technical Specifications

Yangtze INS Hip’s self-sensing handheld instruments track position without external camera arrays, earning recognition as the world’s first approved system of its kind for total hip arthroplasty.

Clinical Applications

The hip navigation system supports total hip arthroplasty for patients with:

• Primary osteoarthritis of the hip
• Rheumatoid arthritis affecting hip joint
• Avascular necrosis of the femoral head
• Hip fractures requiring arthroplasty
• Developmental dysplasia of the hip in adults
• Revision hip replacement cases

Accurate cup positioning within target “safe zones” for inclination and anteversion reduces dislocation risk and optimizes bearing surface wear characteristics. The navigation system aims to help surgeons consistently achieve planned positions regardless of patient anatomy variations.

Regulatory Status

The hip navigation system received NMPA approval in 2024, recognized internationally as the first self-sensing handheld orthopedic surgical robot to achieve regulatory clearance.

Frequently Asked Questions

What makes this the world’s first self-sensing handheld orthopedic robot?

The system integrates position-sensing technology directly into handheld surgical instruments, enabling real-time tracking without robotic arms or, in some configurations, external camera arrays. This combination of self-sensing capability with handheld operation distinguishes it from both robotic arm systems and conventional navigation platforms.

How does navigation improve hip replacement outcomes?

Accurate acetabular cup positioning within recommended “safe zones” for inclination (typically 30-50 degrees) and anteversion (typically 5-25 degrees) reduces dislocation risk and optimizes implant longevity. Navigation feedback helps surgeons achieve target positions consistently across different patient anatomies and surgical approaches.

Can this system be used with any hip implant?

Specific implant compatibility depends on system configuration and available instrument sets. The navigation platform is developed by Chunli Medical, which manufactures broad hip prosthesis product lines including standard and customized options.