Home
Portfolio
Solution
News
About Us
Customer Service

40-Year CableGlide™
OpenWam Open‑Source Research Robot
SurgeWam Medical Surgical Robot

OpenWam Feature Diagram

OpenWam

Highly Flexible and Back‑drivable 7‑Degree‑of‑Freedom Cable‑Driven Robot

Core Technology Originated from Barrett Technology, USA

OpenWam was developed by Barrett Technology in the 1990s. Its core technology has been adopted by MAKO surgical robots and BURT upper‑limb rehabilitation robots.

High Flexibility & Back‑drivability

It is a highly flexible, back‑drivable 7‑DOF cable‑driven robot. Compared with conventional robots, it eliminates gear backlash with near‑zero friction. The arm is lighter and safer for operation.

SurgeWam 5

Medical‑Oriented 7‑DOF Cable‑Driven Robot
Orthopedic‑Optimized Configuration

Within required workspace, the overall movement of the manipulator caused by surgical tool motion is minimized.

Compliant Hand‑Guiding

Static guiding force <0.5N; no spring‑back effect during fast dragging, delivering superior human‑machine interaction.

Virtual Boundary

Ensures both compliance and stiffness. Clear tactile feedback is triggered upon reaching virtual boundaries without overshooting.

Impact Resistance

External impacts in directions different from constrained motion will not trigger emergency stop or damage the robot transmission mechanism.

External Force Sensing

Able to measure or estimate magnitude and direction of interaction force between end‑effector and surroundings.

Safe & Easy Maintenance

Built‑in collision warning and protection for enhanced reliability, safeguarding clinical safety.

SurgeWam7

Compliant Cable‑Driven Manipulator for Orthopedics
Fully‑In‑House Cable‑Driven Innovation

Adopts self‑developed cable‑driven joint design to break limits of conventional rigid joints. Compact form factor, high transmission efficiency, reduced inertia and shock for stable high‑load operation.

High Overall Control Stiffness

Overall control stiffness ≥30000 N/m. Excellent anti‑deformation and anti‑vibration performance, supporting high‑rigidity procedures including orthopedic osteotomy, bone cutting and prosthesis implantation.

Sub‑Millimeter Dual‑Loop Precision Control

Repeat positioning accuracy <0.05mm, absolute positioning accuracy <0.5mm. Performance comparable to world‑class orthopedic surgical robots for intra‑operative fine grinding, osteotomy and prosthesis alignment.

Compact Size with High Payload, Excellent Surgical Compatibility

Superior payload within compact footprint. Supports large‑angle multi‑dimensional motions for shoulder arthroplasty, covering full surgical workflow with minimal end‑effector changes to boost efficiency.

Custom‑Built for Shoulder Surgery

Iteratively optimized for 2nd‑generation shoulder replacement robots. Specially adapted for spherical motion trajectories and narrow operating spaces, resolving interference and trajectory‑mismatch pain points of traditional manipulators for improved clinical fitness.

Shoulder Replacement Surgical Robot

Shoulder Replacement Surgical Robot

Built upon SurgeWAM compliant manipulator and optimized for shoulder arthroplasty, forming a complete robotic surgical system that delivers precise, safe and efficient clinical solutions.

Precise Positioning
Safe & Reliable
Efficient & Intelligent
Flexible Compatibility
Full‑Scenario Device Portfolio

Full‑Scenario Coverage
Joint Rehabilitation Product Portfolio

Leveraging CableGlide™, Estun Medical builds a rehabilitation portfolio covering neurology, bedside care and orthopedics. Customized solutions are provided for patients with diverse dysfunctions, widely recognized by industry experts and end‑users.

Comprehensive Coverage
Customized Solutions
Expert Recognition
Safe & Reliable

OpenWam Robot Teleoperation Technology

The OpenWam teleoperation device enables robot remote control over network. With advanced force sensing, force feedback and haptic reproduction, it applies to remote surgery, tele‑diagnosis, VR, multimedia teaching and many other fields.

Globally Leading Compliant Drive Technology

       Cable‑driven technology originated from MIT AI Lab. Dr. Bill Townsend, recipient of the Joseph F. Engelberger Robotics Award, launched the world’s first 7‑axis haptic collaborative robot with cable transmission in 1988. In 1998, Barrett Technology founded by Dr. Townsend licensed its cable‑driven arm technology to MAKO.
       In 2017, Estun invested in Barrett Technology. Estun Medical was jointly established in 2019 to localize cable‑driven technology in China for medical robots with continuous innovation.
       The proprietary Transparent Dynamics™ compliant drive delivers native haptic force perception without external force sensors. Combined with differential cable‑driven mechanisms, it maximizes motion smoothness and compliance to improve operational experience and safety.

PUCK™ Miniature Servo Drives

       World‑class miniature servo drives and cable‑driven motors with networking capability and native back‑drivability, core enablers for force feedback. Mounted directly behind motors for FOC control and multi‑sensor fusion. Deployed in high‑end fields including medical robots, desktop collaborative robots and aerospace robotics.