Abstract: In one embodiment, a wheelchair device includes a frame adapted to be removably mounted to a wheelchair, a slide member supported by the frame that is configured to be pushed in a forward direction away from a user of the device with the user's arm, a transmission mechanism including a rotatable reel and a spring associated with the reel that resists rotation of the reel in a first direction and assists rotation of the reel in a second direction, and a cable having first and second ends, the first end of the cable being attached to the slide member and the second end being attached to the rotatable reel. With such a configuration, movement of the slide member in the forward direction causes the rotatable reel to rotate in the first direction and movement of the slide member in a backward direction opposite to the forward direction causes the rotatable reel to rotate in the second direction.

Abstract: In one embodiment, a torque-compensating assistive wrist brace includes a hand member adapted to be provided on a user's hand, a forearm member adapted to be provided on the user's forearm, and an assistive linkage that connects the hand and forearm members together, the assistive linkage being configured to apply a balancing torque to a wrist of the user that counteracts intrinsic stiffness within the wrist and assists the user in rotating the wrist in both the flexion and extension directions.

Abstract: In one embodiment, a wheelchair device includes a frame adapted to be removably mounted to a wheelchair, a slide member supported by the frame that is configured to be pushed in a forward direction away from a user of the device with the user's arm, a transmission mechanism including a rotatable reel and a spring associated with the reel that resists rotation of the reel in a first direction and assists rotation of the reel in a second direction, and a cable having first and second ends, the first end of the cable being attached to the slide member and the second end being attached to the rotatable reel. With such a configuration, movement of the slide member in the forward direction causes the rotatable reel to rotate in the first direction and movement of the slide member in a backward direction opposite to the forward direction causes the rotatable reel to rotate in the second direction.

Abstract: In one embodiment, a torque-compensating assistive wrist brace includes a hand member adapted to be provided on a user's hand, a forearm member adapted to be provided on the user's forearm, and an assistive linkage that connects the hand and forearm members together, the assistive linkage being configured to apply a balancing torque to a wrist of the user that counteracts intrinsic stiffness within the wrist and assists the user in rotating the wrist in both the flexion and extension directions.

Abstract: In one embodiment, a torque-compensating assistive wrist brace includes a hand member adapted to be provided on a user's hand, a forearm member adapted to be provided on the user's forearm, and an assistive linkage that connects the hand and forearm members together and that applies a balancing torque to a wrist of the user that counteracts intrinsic stiffness within the wrist and assists the user in rotating the wrist in both the flexion and extension directions.

Abstract: In one embodiment, a torque-compensating assistive wrist brace includes a hand member adapted to be provided on a user's hand, a forearm member adapted to be provided on the user's forearm, and an assistive linkage that connects the hand and forearm members together and that applies a balancing torque to a wrist of the user that counteracts intrinsic stiffness within the wrist and assists the user in rotating the wrist in both the flexion and extension directions.

Abstract: In one embodiment, a wheelchair drive mechanism adapted to mount to a wheelchair includes a drive lever adapted to be rotated forward and rearward by a user of the wheelchair, a clutch mechanism associated with the drive lever, wherein actuation of the clutch mechanism causes the drive lever to be coupled to a wheel of the wheelchair such that they rotate together, and a clutch actuation device provided on the drive lever that is operable by the wheelchair user to actuate the clutch mechanism.

Abstract: In one embodiment, a wheelchair drive mechanism adapted to mount to a wheelchair includes a drive lever adapted to be rotated forward and rearward by a user of the wheelchair, a clutch mechanism associated with the drive lever, wherein actuation of the clutch mechanism causes the drive lever to be coupled to a wheel of the wheelchair such that they rotate together, and a clutch actuation device provided on the drive lever that is operable by the wheelchair user to actuate the clutch mechanism.

Abstract: In one embodiment, an exercise apparatus for exercising an arm includes a lever adapted to attach to a wheel of a wheelchair, a forearm support pivotally mounted to the lever that is adapted to support a forearm of a wheelchair user during exercise, and a resilient member attached to the lever that is adapted to resist movement of the lever by the user.

Abstract: A method and apparatus for upper limb rehabilitation training of coordinated arm/forearm, forearm/forearm and grasping movements of a motor impaired patient comprises a nonrobotic, passive support, an arm/forearm sensor, a gripping device, a grip sensor capable of measuring an impaired grasping force of a grasping of the patient, a computer to process measurements of coordinated and simultaneous impaired arm/forearm, forearm/forearm and grasping movements to control a graphical representation of the arm/forearm and grasping movements in interaction with a virtual environment, and to provide a visual feedback signal to the patient of simulated normal activities of daily living performed with enhanced motor ability relative to the actual impaired motor ability. A visual feedback signal of the simulated activities of daily living is provided to motivate the patient to perform the upper limb rehabilitation movement training despite limited motor ability.

Abstract: In one embodiment, an exercise apparatus for exercising an arm includes a lever adapted to attach to a wheel of a wheelchair, a forearm support pivotally mounted to the lever that is adapted to support a forearm of a wheelchair user during exercise, and a resilient member attached to the lever that is adapted to resist movement of the lever by the user.

Abstract: It is described a 3D monocular tracking system, being robust, having low cost, easy to install and use, useful for the upper limbs rehabilitation in a patient in need thereof, as well as a home self-directed therapy method for patients having upper limbs' movement disability. The system comprising a) a handle or gripper; b) a computational vision system comprising a video camera; c) software comprising a set of games; d) a processor; and, e) a display apparatus.

Abstract: A method and apparatus for upper limb rehabilitation training of coordinated arm/forearm, forearm/forearm and grasping movements of a motor impaired patient comprises a nonrobotic, passive support, an arm/forearm sensor, a gripping device, a grip sensor capable of measuring an impaired grasping force of a grasping of the patient, a computer to process measurements of coordinated and simultaneous impaired arm/forearm, forearm/forearm and grasping movements to control a graphical representation of the arm/forearm and grasping movements in interaction with a virtual environment, and to provide a visual feedback signal to the patient of simulated normal activities of daily living performed with enhanced motor ability relative to the actual impaired motor ability. A visual feedback signal of the simulated activities of daily living is provided to motivate the patient to perform the upper limb rehabilitation movement training despite limited motor ability.

Abstract: A method and a robotic device for locomotion training. The method involves shifting a subject's pelvis without directly contacting the subject's leg, thereby causing the subject's legs to move along a moveable surface. The device comprises two backdriveable robots, each having three pneumatic cylinders that connect to each other at their rod ends for attachment to the subject's torso. Also provided is a method of determining a locomotion training strategy for a pelvic-shifting robot by incorporating dynamic motion optimization.