Gait rehabilitation system A3-2

roboticcomputer-assistedwith serious games

Product overview

The A3-2 is a computer-controlled gait training and evaluation robot intended for rehabilitation of patients with gait dysfunction due to nervous system injury (for example stroke). It delivers repeatable, physiological gait cycles with synchronized treadmill control, active and passive modes, and adjustable body-weight support to enable early and progressive gait retraining.

Therapeutic effects

• Promotes re-establishment of a normal walking pattern through repetitive, guided gait cycles to reinforce motor memory.
• Helps inhibit and reduce spasticity while improving joint range of motion.
• Dynamic weight support enhances proprioceptive input and helps maintain or recover muscle strength and coordination.

Key features

• Gait-cycle design reproduces physiological step patterns for natural biomechanics.
• Imported servo motors for precise control of joint angles and walking speed; treadmill speed automatically synchronizes with gait corrector.
• Active and passive training modes with adjustable, soft guiding force to match patient ability.
• Gait-offset (trajectory) correction to address abnormal gait habits.
• Spasm detection and safety protection with adjustable intervention levels.
• Two suspension support modes: static support for vertical lift/transfer (wheelchair to standing) and dynamic support for center-of-gravity adjustment during walking.
• Patented treadmill designed to protect knees and ligaments; suitable for early rehabilitation with minimum speed 0.1 km/h.
• Virtual-scene feedback to increase patient engagement and adherence.
• Integrated software: patient database, adjustable treatment plans, real-time leg resistance curves and monitoring of active/passive leg training and patient-generated force.

Technical specifications

• Voltage: AC 220 V 50 Hz
• Power: 500 V/A
• Fuse: 3.15 A / 250 V
• Maximum patient weight: < 135 kg
• Maximum patient height: < 200 cm
• Adjustable leg length: Thigh 34–46 cm; Lower leg 30–40 cm
• Joint motion angles: Hip 30–50°; Knee 50–80°
• Training speed range: 0.1–3.5 km/h
• Spasm monitoring: 3 adjustable levels