A therapeutic system may include a triangular prism-shaped body, the triangular prism-shaped body including a first rectangle plane; a second triangular plane placed at a 90° angle relative to a first side of the first plane; a third plane rectangular placed at a 30° angle relative to a second side of the first plane; a fourth triangular plane placed at a 90° angle relative to a third side of the first plan; and a fifth rectangular plane place at a 60° angle relative to a fourth side of the first plane; a heel placement depression formed in the first rectangle plane; and a foot placement identifier formed on the third rectangular plane originating at the joint of the first rectangular plane and third rectangular plane and extending into the third rectangular plane.

Examples of a device for guiding and detecting a motion of a target joints and a motion assistance system such motion guiding devices are described. The motion guiding and detecting device comprises a motion generator and a motion transfer and target interfacing unit to transfer the motion generated by the motion generator to the target joint. The system further includes a motion detection and feedback unit that interfaces with the target, and a controller that interfaces with both the feedback unit and the motion generator to control and coordinate the motion of the motion generator and the target joint.

Examples of a self-supported device for guiding motions of a target joint of a target body are disclosed. The device comprises a motion generator, a motion transfer system, a target body interfacing system, a load bearing system and a controller. The load bearing system comprises a plate connected to the motion transfer system and a network of joints and links configured to constrain the plate to rotate in three dimensions about a center of rotation of the load bearing system. A position of the center of rotation of the load bearing system being adjustable by adjusting a connection point between the links. The plate of the load bearing system is connected to an adjustable target body interfacing system that is configured to be mounted to the target body. The center of rotation of the load bearing system coincides (or nearly coincides) with a center of rotation of the target joint of the target body.

A method for exercising a joint and a limb including the following: preventing movement of an exercise device actuation member in a first direction unless pressure exerted by the limb against the actuation member is equal to or greater than a predetermined first target pressure; permitting movement of the actuation member in the first direction at a first predetermined speed when pressure exerted by the limb against the actuation member is equal to or greater than the predetermined first target pressure; preventing movement of the actuation member in a second direction unless pressure exerted by the limb against the actuation member is equal to or greater than a predetermined second target pressure; and permitting movement of the actuation member in the second direction at a second predetermined speed when pressure exerted by the limb against the actuation member is equal to or greater than the predetermined second target pressure.

An apparatus for the treatment of arthrofibrosis, has a base having first and second opposing ends and a hole or recess adjacent the first end for enabling connection of the base to a chair to restrict movement of the base relative to the chair. A block is removably attached to the base and is movable between the first and second ends for abutting the toes of a foot of a user of the apparatus placed between the block and the hole or recess. The block is slidable along a guide on the base for enabling adjustment of the block between the first and second ends of the base. A clamp clamps the block in position on the base.

Methods are provided for controlling a powered lower limb device. A stance phase control method is disclosed in which the required joint torque is determined based on the difference between two joint angles, such as the knee joint and the ankle joint. A swing control method is also disclosed that employs feedback-based minimum jerk trajectory control. A joint assembly for use in a modular lower limb device is also provided. The joint assembly includes a reconfigurable slider-crank mechanism that is configurable to provide a plurality of different ranges of rotational travel, rotational speeds, and torques, for customization according to different anatomical joints. The joint assembly may include a compact coupling device for coupling a ball screw of the slider-crank mechanism to an output shaft of a motor. When employed to form a modular orthosis, the joint assembly may be adapted for self-alignment as its length adjustment method during setup.

An exoskeleton system is passively powered and pneumatically operated. The system may be a lower-limb system for walking gait restoration. The system may include a first linear actuator located in front of an upper leg section and a second linear actuator located behind a lower leg section.

A hip component for a legged mobility device has a hip body, and a hip insert assembly for adjusting a size of the hip component. The hip insert assembly includes a carrier assembly mounted to the hip body, and a main insert assembly spaced apart from the carrier assembly. Adjustment screws are connected to the carrier assembly and the main insert assembly. The carrier assembly includes an adjustment mechanism including a drive shaft and an adjustment chain to effect translational movement of the adjustment screws to move the main insert assembly to adjust both width and depth of the hip component simultaneously. The hip component includes an abduction/adduction control mechanism that includes elastomeric bushings that are selective as to resistance level and shape to control a degree of abduction and adduction, and to preset an initial angle. A leg component includes a central carrier, and first and second housings that are located on opposite sides of the central carrier. An adjustment mechanism including a drive shaft that drives driven shafts, such as by a worm/worm gear interaction, effects movement of the first housing to relative to the second housing to adjust a length of the leg component.

A method of operating a modular exoskeleton system, the method comprising: monitoring for one or more actuator units being operably coupled to or removed from the modular exoskeleton system, the modular exoskeleton system comprising at least a first actuator unit configured to be operably coupled and removed from the modular exoskeleton system; determining that the first actuator unit has been operably coupled to the modular exoskeleton system; determining the first actuator unit has been associated with a first body portion of the user; determining a first new operating configuration based at least in part on the determination that the first actuator unit has been operably coupled to the modular exoskeleton system and the determination that the first actuator unit has been associated with the first body portion of the user; and setting the first new operating configuration for the modular exoskeleton system.

An exoskeleton system comprising: a power system that powers the exoskeleton system, the power system including one or more battery slots, and a modular battery set that includes one or more battery units that are modular such that any of the one or more battery units can be readily and quickly removed and coupled within any of the one or more battery slots to provide power to the exoskeleton system.