Zhorbot 500 Spine Surgery Navigation System

The Zhorbot 500 represents ZOEZEN’s second-generation spine surgery navigation system, achieving NMPA Class III certification in February 2025. Described as the world’s first surgical robot to implement full-process automatic identification and cutting capabilities, the system delivers sub-millimeter positioning accuracy (≤0.8mm) for complex spinal procedures.

Product Overview

Building on the foundation established by the Zhorbot 300, the Zhorbot 500 introduces autonomous surgical capabilities that significantly advance the role of robotics in spine surgery. While the predecessor system provided navigation guidance requiring manual instrument manipulation by surgeons, the Zhorbot 500 incorporates intelligent tracking and adaptive force feedback systems enabling automated execution of specific surgical tasks.

The system emerged from ZOEZEN’s ongoing collaboration with Beihang University and clinical partners including Peking Union Medical College Hospital (PUMCH). Clinical trials at PUMCH demonstrated measurable improvements in surgical efficiency and outcomes, with bone cement injection procedures reportedly completed in substantially less time than with imported alternatives.

Key Features

Full-process Automatic Identification and Cutting: The defining innovation of the Zhorbot 500 is its ability to autonomously identify anatomical structures and execute cutting tasks. This represents a shift from navigation-only systems toward robots capable of independent surgical action under physician supervision.

Sub-millimeter Precision: The system achieves positioning accuracy of ≤0.8mm, meeting the highest standards in spine surgery where millimeter-level deviation can result in neurological complications or implant failure.

Intelligent Optical Tracking: Advanced optical tracking provides continuous real-time position monitoring of instruments relative to patient anatomy, compensating for patient movement and respiration.

Adaptive Force Feedback: Real-time force sensing enables the system to detect tissue resistance and adjust accordingly, providing safety margins during interaction with bony and soft tissue structures.

3x Efficiency Improvement: According to ZOEZEN, the Zhorbot 500 can improve surgical efficiency by up to three times compared to traditional approaches, reducing procedure duration and associated risks.

Technical Specifications

Zhorbot 500’s full-process automatic identification and cutting capability—world-first for spine robots—achieves ≤0.8 mm positioning accuracy with adaptive force feedback, approved by NMPA in February 2025.

Clinical Applications

The Zhorbot 500 supports a broad range of spine surgery applications:

• Percutaneous Pedicle Screw Fixation: Automated trajectory planning and positioning for screw placement in thoracolumbar fusion and fracture stabilization
• Vertebroplasty and Kyphoplasty: Precision guidance and potential automated cement injection for vertebral augmentation
• Spinal Fusion: Navigation and execution support for posterior lumbar interbody fusion (PLIF), transforaminal lumbar interbody fusion (TLIF), and other fusion techniques
• Complex Deformity Correction: Sub-millimeter accuracy enables application in challenging cases including scoliosis correction and revision surgery

Clinical validation at Peking Union Medical College Hospital demonstrated reduced operative time for bone cement injection procedures and lower complication rates compared to imported systems. The system’s automatic identification capability reduces dependence on surgeon experience for consistent outcomes.

Regulatory Status

The Zhorbot 500 received NMPA Class III medical device certification in February 2025, marking it as the company’s most advanced regulatory achievement and positioning ZOEZEN at the forefront of domestic spine surgery robotics.

Market Significance

The approval of the Zhorbot 500 arrives at a key moment for China’s medical robotics industry. Despite over 900,000 spinal surgeries performed annually in China, robot-assisted procedures represent less than 5% of volume compared to approximately 20% penetration in Western markets.

ZOEZEN positions the Zhorbot 500 as a domestically developed alternative to imported systems that typically cost tens of millions of RMB. By offering advanced capabilities at potentially lower price points, the company aims to accelerate robot adoption across tier-2 and tier-3 hospitals where budget constraints have limited access to surgical robotics.

Industry analysts project the Chinese spine surgery robot market could grow from RMB 149 million in 2024 to over RMB 31.75 billion by 2035, representing a compound annual growth rate exceeding 44%. The Zhorbot 500’s automatic capabilities position ZOEZEN to capture share in this expanding market.

Frequently Asked Questions

What makes the Zhorbot 500 different from other spine robots?

The Zhorbot 500 is distinguished by its full-process automatic identification and cutting capabilities, representing advancement beyond navigation-only systems toward autonomous surgical execution. Its sub-millimeter precision (≤0.8mm) and adaptive force feedback provide safety and accuracy competitive with international benchmarks.

How accurate is the Zhorbot 500?

The Zhorbot 500 achieves positioning accuracy of ≤0.8mm (sub-millimeter precision), which is among the highest reported for spine surgery robots globally. This level of precision is critical for procedures near neural structures where millimeter-level deviation can cause complications.

Is the Zhorbot 500 fully autonomous?

While the Zhorbot 500 introduces automatic identification and cutting capabilities, it operates under continuous physician supervision. The system executes specific tasks autonomously after surgeon approval of the surgical plan, representing a supervised autonomy model rather than fully independent operation.

How does the Zhorbot 500 compare in price to imported alternatives?

ZOEZEN has not publicly disclosed specific pricing for the Zhorbot 500. However, the company positions its products as cost-effective domestic alternatives to imported systems, which typically carry price tags in the tens of millions of RMB. The system is designed to integrate with existing hospital imaging equipment to minimize total implementation costs.