A power assistive device for hand rehabilitation that provides training of a combined movement of finger flexion-extension and forearm supination-pronation to a user. The power assistive device includes a hand brace and a base. The hand brace includes finger assemblies that adjustably connect to a platform, actuators that connect to the finger assemblies, and strain gauge sensors that connect to the finger assemblies and detect force signals generated by movement of the finger assemblies. The base removably connects to the hand brace and includes a forearm support, a C-shaped ring that includes C-shaped tracks formed along an inner circumferential surface of the C-shaped ring, a rotatable platform that moves along the C-shaped tracks, a mounting platform that connects to the rotatable platform, and an electromyography (EMG) sensor that attaches to the forearm of the user and senses EMG signals generated by movement of the hand of the user.

A computer-implemented method for modeling an orthopedic cast, including scanning an injured limb to extract raw body data; determining, from the extracted raw body data, a target portion data of the injured limb, the determined data representing a fine cast surface for the orthopedic cast; patterning the fine cast surface to form a ventilation structure and a blank area thereon; forming an opening gap on the blank area for assembling and disassembling the orthopedic cast; and offsetting the cast surface in parallel to thicken the orthopedic cast.

An orthotic device including a forearm support section configured to be releasably attached to a user's arm, a hand support section configured to be releasably attached to the user's hand, and an adjustable joint coupled to the forearm support section and the hand support section. At least one electromyography sensor is coupled to the forearm support section and positioned to sense activity of muscles in the user's arm, at least one electrode is coupled to the forearm support section and configured to provide electrical stimulation to muscles in the user's arm, and a controller is operatively coupled to the at least one electrode, the controller being configured to deliver electrical stimulation to the at least one electrode.

Disclosed is a shoulder brace for immobilization of the arm and shoulder joint in neutral abduction/adduction. Methods of using the brace and methods of treating shoulder injuries are similarly provided.

There is described an orthosis comprising: a first portion adapted to be secured to an upper arm region of a wearer; a second portion hingedly connected to the first portion and comprising a pair of elongate members spaced apart to extend along opposing sides of a lower arm region of the wearer, each of the elongate members terminate at a distal end adjacent to a wrist of the wearer and being connected by a connecter extending at least partially around the wrist of the wearer; wherein, the distal ends of the elongated members each have a connector element formed therein for facilitating engagement with the wearer's hand so as to maintain the wearer's hand in either a pronated or a supinated position.

An orthotic device includes an upper arm section for receiving an upper portion of an arm of a subject, a forearm section for receiving a forearm section of the arm, and at least one elbow joint rotatably coupling the upper arm section and the forearm section. In the orthotic device, the forearm section includes a release control operatively coupled to the at least one elbow joint, where the release control is configured to transition the at least one elbow joint from a restricted motion state to a free motion state when the release control is activated.

An orthosis for fastening to a human hand for immobilizing the carpometacarpal joint and metacarpophalangeal joint of the thumb of the hand has a stiff body which can be of multi-piece or single-piece design. The rigidity of the body enables the latter to support, to stabilize and to immobilize the hand and dimensional stability is provided such that the body can be placed in a simple manner with a defined shape onto the hand.

An improved joint support for limiting the range of motion of an anatomical joint comprises intermeshing gears for allowing adjustment of the range of motion of the joint, and comprises plural mechanisms for securing the gears in engagement with one another, whereby adjustment can be made without tools and without disassembly of any components.

A device for muscle strength support includes a flexible support structure configured to be worn on a body of a user during use of the device and an actuator unit configured to exert a tensile force on a first tension member of the flexible support structure to support the muscle strength during a movement of a first body part. The first tension member extends along a first path through a guide strap of the flexible support structure to the actuator unit, the guide strap limiting a section of the first path in a direction perpendicular to a path longitudinal direction. The first tension member is further configured to be attached to the first body part during use of the device by a first fastening member.

A brace for a person's hand has a cradle shaped to extend over the side of the hand in the area between a person's wrist crease and pinky-finger. The cradle may include two opposing curved sides, each side being joined to the other along a longitudinal edge. Opposite the longitudinal edge, each side has a distal edge. The distal edges may be spaced apart from each other by a distance that is approximately the thickness of a person's hand in the area extending from the person's wrist crease to the interstice between the pinky-finger and ring-finger. The cradle is shaped to extend over a side of the wearer's hand between a person's wrist crease and pinky-finger.