[待更新] Durable Medical Equipment. QQB's Durable Medical Equipment. The Stair Climbing Wheelchair and Walker are assistive devices designed for Accident,Stroke,M/S,Spina Bifida, COPD, Muscular Dystrophy,SCI clients and all others alike. Designed with Independence in mind. Please see our mission statement. Walkers,Wheelchairs & Assistive Devices by QQBs, and assist in their rehabilitation. equilibrium and walking skills, repattern muscle groups, reh...