Robotic lower-limb exoskeleton for early standing and gait rehabilitation
Application videoCE MDR (EU) reported at Fourier rehabilitation-robot portfolio level, June 2024 (TUV SUD via the Microkn announcement); no per-model certificate or FDA clearance was found for the ExoMotus M4.Data confidence: medium
Illustrative product graphic. Request the datasheet or current photography from the manufacturer.
Overview
The ExoMotus M4 is Fourier Rehab's flagship lower-limb gait-rehabilitation exoskeleton: a powered hip-and-knee exoskeleton integrated with a balance support frame and dynamic weight support. It delivers repetitive, physiological gait training for patients with stroke, spinal cord injury and other neurological or musculoskeletal disorders, with gait parameters such as speed, stride length and guidance force tuned per patient. Real-time gait, joint-angle and step-count feedback support objective rehabilitation reporting.
Key highlights
6 degrees of freedom: 4 active hip/knee joints plus 2 passive ankle joints
Programmable walking speed of 0.44-1.3 km/h with adjustable stride length and step height
Fits patients 150-190 cm tall and up to 100 kg, with automated leg-length matching
Up to 8 hours of continuous walking per battery charge
84 x 112 x 150 cm (+/-5 cm) frame with built-in balance support and fall prevention
Two gait modes (Walk on the Spot and Ground Walking) plus sit-to-stand training
Technical parameters
21 published parameters, grouped. Source links are listed under “Data sources”.
Mechanics
Degrees of freedom
6 total (4 active + 2 passive)
Active joints
4 active DOF - bilateral hip and knee
Passive joints
2 passive DOF - bilateral ankle with anti-foot-drop spring mechanism
Device dimensions (L x W x H)
84 cm x 112 cm x 150 cm (+/-5 cm)
Patient fit adjustment
Adjustable thigh and shank length, hip width and support height with automated leg-length matching
Support structure
Built-in ergonomic balance support frame with dynamic weight support and integrated seat
Motion
Walking speed
0.44-1.3 km/h (adjustable)
Vertical motion
Vertical degree of freedom for realistic weight shifting and elevation change
Patient positions
Sitting, standing and walking
Performance
Training modes
2 primary gait modes - Walk on the Spot and Ground Walking - plus sit-to-stand transfer
Adjustable gait parameters
Stride length, step height, speed and guidance force
Real-time feedback
Gait pattern, joint angles and step count with automated reports
Continuous walking time
Up to 8 hours per charge
Physical
Patient height range
150-190 cm
Maximum patient weight
100 kg
Display
Display
Touchscreen tablet for selecting training modes and gait parameters
Power
Battery
Intelligent modular rechargeable battery (about 8 h continuous walking)
Safety
Safety systems
Emergency stop, automatic calibration, speed and position limitation, joint overload protection and fall prevention
Peripheral stimulation
Foot plantar sensory feedback during training
Connectivity
Connectivity
WiFi for training control and monitoring
Regulatory
EU market access
CE MDR (TUV SUD) obtained at Fourier Rehab portfolio level, announced June 2024
Applications
1Early standing and verticalisation training after stroke or spinal cord injury
2Overground gait training on flat terrain and gentle inclines
3On-the-spot stepping (Walk on the Spot) training
4Sit-to-stand transfer training
5Gait symmetry, balance and coordination training
6Spasticity management and abnormal gait-pattern correction
Fourier Intelligence is a private Shanghai robotics company founded in 2015 that develops rehabilitation robotics and general-purpose humanoid robots. Its Fourier Rehab division makes upper- and lower-limb rehabilitation robots and reports installations in more than 60 countries, with corporate offices in Shanghai, Singapore and Kuala Lumpur. The company raised a Series E round led by SoftBank Vision Fund 2 with Saudi Aramco's Prosperity7 Ventures.
CE MDR (TUV SUD) reported at Fourier rehabilitation-robot portfolio level, announced June 2024 (not confirmed per model on the manufacturer product page)
Export markets: Europe (CE-marked; sold via EU distributors), Asia-Pacific (China, Singapore, Malaysia, Australia), Middle East (UAE), North America (research partnerships, USA and Canada)
Compiled from publicly available sources and last verified on 12 Sept 2026. Specifications can change without notice — confirm with the manufacturer before ordering.
Digital PET/CT with 189 ps TOF, 2.9 mm NEMA PET resolution and 28/35 cm axial FOV
PET/CT Scanner
FDA 510(k) K241585, cleared 30 August 2024 (product code KPS) · CE under EU MDR/MDD - uMI Panorama series completed CE certification per the manufacturer's 2024 annual results release
512-slice ultra-premium CT with 16 cm detector coverage and 0.259 s rotation
CT Scanner
NMPA Class III registration 国械注准20203060462 (valid to 2030-05-07). No FDA 510(k) or model-specific CE certificate was found for the NeuViz Epoch, so neither is claimed.
