Ruyi Ankle Walking Assistance Training Device
Ruyi (如意, meaning “as you wish”) is Eulon’s ankle-focused walking assistance training device that received NMPA Class II medical device registration in December 2024.
Product Overview
Ruyi addresses ankle joint rehabilitation needs for patients with gait abnormalities or limited ankle mobility. The device provides targeted assistance during walking training, helping users maintain proper ankle mechanics throughout the gait cycle.
Unlike full lower-limb exoskeletons, Ruyi focuses specifically on ankle support, offering a lighter and more accessible option for patients whose primary deficit is at the ankle joint. This makes it suitable for both clinical use and potentially home-based rehabilitation programs.
Key Features
Approved in December 2024, Ruyi is a flexible ankle walking trainer by Eulon that assists dorsiflexion and plantarflexion timing to normalize gait in post-stroke and ankle-impaired patients.
- Ankle-Specific Design: Targeted assistance for ankle dorsiflexion and plantarflexion during walking
- Flexible Construction: Soft robotics elements provide comfortable, non-restrictive support
- Lightweight Profile: Reduced weight compared to full leg exoskeletons improves user acceptance
- Walking Pattern Correction: Helps normalize ankle movement timing during gait cycle
- NMPA Certified: Class II medical device registration obtained December 2024
Technical Specifications
Approved as an NMPA Class II device in December 2024, Ruyi provides flexible soft-exoskeleton ankle assistance for the talocrural joint during walking rehabilitation for foot drop and ankle weakness.
| Parameter | Specification |
|---|---|
| Type | Ankle walking assistance trainer |
| Target Joint | Ankle (talocrural joint) |
| Design | Flexible/soft exoskeleton |
| Regulatory Class | NMPA Class II |
| Approval Date | December 2024 |
Clinical Applications
Ruyi serves patients with ankle-related gait impairments including:
- Post-stroke patients with foot drop or ankle weakness
- Patients with peripheral neuropathy affecting ankle control
- Post-surgical ankle rehabilitation
- Elderly individuals with ankle instability
- Athletes recovering from ankle injuries
The focused ankle assistance allows therapists to address specific deficits without the complexity of full lower-limb exoskeleton systems.
Regulatory Status
| Region | Status | Date |
|---|---|---|
| China (NMPA) | Approved (Class II) | 2024-12 |
| Europe (CE) | Not confirmed | - |
| USA (FDA) | Not applied | - |
Frequently Asked Questions
What makes Ruyi different from a standard ankle brace?
Ruyi is a powered assistance device that actively supports ankle movement during walking, rather than simply providing passive stabilization like a traditional brace. It uses flexible robotics to deliver timed assistance during the gait cycle.
Who is a good candidate for Ruyi rehabilitation?
Ruyi is designed for patients with ankle-level deficits who retain some walking ability but need assistance with ankle control. It is particularly suitable for patients with foot drop, ankle weakness following stroke, or those recovering from ankle surgery.
Can Ruyi be used at home?
The device’s lightweight, flexible design suggests potential for home use. However, specific usage protocols should be determined by treating clinicians based on patient condition and device indications.
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Sources
Publicly available references used for the data on this page. See data methodology for verification standards.