ARMassist: A low-cost device for telerehabiltation of post-stroke arm deficits

Motor deficits in the growing population of stroke survivors are creating a pressing need for new strategies and new tools to provide efficient and effective delivery of patient care. A summary if existing devices for upper-limb rehabilitation is presented, including the modes of feedback provided and whether the intended market is clinical or personal use. The design requirements for a new portable device are outlined from both patient and therapist viewpoints. Embodiments of the device combine planar gravitational support of the arm, low-cost sensors, passive or active movement assistance, visual and haptic feedback, and wireless communication protocol to produce an affordable but effective device for in-home therapy. The device targets the treatment of upper-limb motor deficits resulting from conditions such as stroke, traumatic injury, and disuse. The development of a passive first prototype ARMassist device is presented.