Power Wheelchair

The Power Wheelchair (models DC01–DC10L) is a motor-driven, foldable, battery-operated indoor/outdoor mobility device for disabled or elderly persons limited to a seated position. It features a brushless or brush motor, electromagnetic brake system, lithium-ion battery, joystick control, and optional Bluetooth remote control.

The subject device matches the predicate in frame design, wheel configuration (4 wheels, 7–8 inch front, 8–12 inch rear), max speed (6 km/h), and folding mechanism. Minor differences include battery capacity (12Ah/6Ah×2 vs. 20Ah), motor type (brush vs. brushless), maximum load (120–150 kg vs. 120 kg), and Bluetooth remote control capability. Dimensions and ground clearance vary slightly across nine models.

ISO 7176 series (Parts 1–15, 21–22, 25), ISO 16840-10:2021, IEC 60601-1-2:2020, ISO 10993-1/5/10/23 (biocompatibility), ISO 14971:2019 (risk analysis), FCC 47 CFR 15.247 (RF emissions), and FDA guidance for power wheelchairs.

Both devices comply with identical ISO standards and regulatory classification (Class II, 21 CFR 890.3860). Performance testing demonstrates substantial equivalence across static/dynamic stability, brake effectiveness, energy consumption, dimensions, maximum speed, obstacle-climbing, and electromagnetic compatibility. Minor differences in battery capacity, motor type, and Bluetooth control do not raise new safety concerns because all critical safety and performance parameters are validated and tested to the same standards with maximum-rated-weight dummies. Biocompatibility testing per ISO 10993 series confirms user-contacting materials are safe despite material variations between devices.