In various embodiments, provided herein are systems, methods, processes, and devices for providing locomotive rehabilitation to a subject via one or more gait motions that substantially accurately mimic motions performed in healthy, natural gait cycles. The system may mimic natural gait motions via footplates and handles, and one or more linkage systems. In particular embodiments, the system may further include a motor unit and/or clutch for providing controlled forces assisting or resisting motions of a linkage system. Further, the system may include a tower for operating in a standing or seated position. In at least one embodiment, the system includes a body weight support system that provides offloading forces to a subject.

A wheeled personal mobility device for transporting a person, an electric motor for use with the personal mobility device, a splined connection, an electromagnetic braking system and a steering engagement mechanism. The wheeled personal mobility device may be embodied as a wheeled personal mobility aid. The wheeled personal mobility device is reconfigurable between at least three configurations.

Disclosed herein are novel embodiments of progressive mobility aid devices. Such progressive mobility aid devices are designed to progress through a variety of configurations to accommodate the use of the progressive mobility aid device in a safe and secure manner as the user of the progressive mobility aid device traverses a variety of surfaces and terrain such as traversing irregular surfaces including sidewalks and stone-based surfaces; loose surfaces and terrain including gravel and sand; soft surfaces including wet ground and carpeted surfaces; and variable gradient surfaces including stairs and inclining or declining surfaces and terrain. The progressive mobility aid devices accommodate such uses with an articulating design that provides for front legs of the progressive mobility aid device to be pivotably adjusted with respect to the rear legs of the progressive mobility aid device, and with wheel assemblies that are selectively deployable and retractable.

A modular passive-to-active exoskeleton system utilizes motor unit modules, an electromagnetic-clutch power transmission system, and biometric control. The passive exoskeleton has a stamina-increasing chairless chair function and optional use of magnetic ball-and-socket joints and knee torsion springs. To convert the exoskeleton system into an active robotic wearable device, modular attachments allow for motor units to be securely connected to the exoskeletal frame. An exoskeleton system may contain a knee motor unit that has a transmission system with an electromagnetic clutch that enables a passive mode, active mode, and/or hybrid mode. The motor units are controlled using wireless biometric motion sensors that measure limb joint angle and muscle activity. These motor units also communicate via wireless transmission with a central processing unit of the exoskeleton. This central processing unit serves as a gateway for user feedback from an Internet-of-Things (IoT) device, such as a smartphone, tablet, computer, etc.

Disclosed herein are wearable, wireless-enabled biometric sensor systems, methods for manufacturing/operating such biometric sensor systems, and robotic exoskeletons equipped with such biometric sensor systems. A biometric sensor system includes a first biometric subassembly that mounts to an upper-extremity portion of a user's appendage, and a second biometric subassembly that mounts to a lower-extremity portion of the user's appendage. Each biometric subassembly includes a respective biometric sensor that monitors a biometric characteristic of the respective extremity portion of the user appendage and wirelessly outputs a sensor signal indicative thereof. A system central processing unit (CPU), which mounts onto the user, is programmed to receive sensor signals from the biometric sensors, calculate a biometric parameter of the user appendage using biometric characteristics indicated by the received sensor signals, and command a subsystem (e.g., exoskeleton joint assembly motor module) to execute one or more control operations based on the calculated biometric parameter.

Various embodiments related to a recumbent therapeutic and exercise device are provided herein. The recumbent therapeutic and exercise device includes a frame; a hand crank system coupled to the frame, the hand crank system including a hand crank rotatable by a user, wherein the hand crank is movable in a substantially vertical plane closer to and further from a support surface for the frame; and a foot crank system coupled to the frame, the foot crank system including a foot crank rotatable by the user, wherein the foot crank is movable in a substantially horizontal plane relative to the support surface for the fame.

System and method for providing both powered and free swing operation in a powered orthotic exoskeleton joint. The joint comprises a processor controllable ratchet wheel and pawl type clutch, configured to engage or disengage upon receiving force from a servo actuator. When the processor determines that the clutch should be engaged, it directs the powered actuator to couple the pawls to the ratchet wheel, allowing torque to be transferred from the joint's powered motor, through the clutch, to the gearing that subsequently controls the motion of the joint. Conversely, the processor can direct the powered actuator to decouple the pawls from the ratchet wheel. This in turn decouples the ratchet wheel from the motor, thus allowing the remainder of the joint and any associated joint gearing to engage in relatively free swing motion, without any interference from the motor.

A personal massage apparatus employs a single motor to selectively provide the dual action of either a vibrating massage or a percussive massage. Two sprag bearings are mounted on the drive shaft of the electric motor, with the sprag bearings being oriented such that the first sprag bearing is driven when the drive shaft rotates counter-clockwise, and the second sprag bearing is driven when the drive shaft rotates clockwise. The first sprag bearing has an eccentric weight coupled thereto such that vibration for a vibrational massage is caused when the motor rotates counter-clockwise. The second sprag bearing has crankshaft and crank pin coupled thereto, driving a connecting rod in reciprocating motion to drive a percussive massage head when the motor rotates clockwise. A counterbalance on the crankshaft minimizes vibration when the percussion action is selected.

An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes primary and secondary protection circuits for monitoring the charging and discharging of the battery. Individual battery cells forming the battery pack are connected by a main bus to a connector for connection to a battery charger or a device to be powered, and the main bus may be interrupted by a switch controlled by the battery management system to prevent damage to the battery during charging or discharging of the battery.

Systems and methods for assistive devices for replacing or augmenting the limb of an individual, such devices comprising a joint and a powered system; the powered system having a first configuration in which the powered system rotates the joint by applying power to the joint, and a second configuration that allows for rotation of the joint without actuation of the powered system.