A prosthesis, including a prosthetic foot, a prosthetic talocrural joint, a prosthetic ankle pivotally coupled to the prosthetic foot and a four-area bending beam. The four-area bending beam includes a U-shaped or other spring. One end of the spring is mechanically coupled via two of the four areas to the prosthetic foot. The other end of the spring is mechanically coupled via the other two areas to the prosthetic ankle. The spring resiliently resists pivoting of the prosthetic ankle about the prosthetic talocrural joint. The four-area bending beam exhibits an at least approximately constant moment along its length to maximize strain energy density, storing about four times as much elastic energy as a comparable cantilevered beam, thereby providing high stiffness and high range of motion to the ankle. The spring is modular, being easily replaced with another spring exhibiting a different stiffness, ex., to tailor the prosthesis to a user.

A prosthetic device for engaging a residual limb includes a plurality of elongate counters configured to receive at least a portion of the residual limb within a volume defined by the plurality of elongate counters. Each respective elongate counter is configured to counteract forces applied to the residual limb via the prosthetic device. The prosthetic device also includes a socket and a selective adjustment system, and may include an independent counter engaged with the socket. The socket is configured to engage with the residual limb, and may include a lower textile socket coupled to the plurality of elongate counters and an upper textile socket coupled to the lower textile socket. The selective adjustment system is configured to secure the prosthetic device to the residual limb and to provide selective adjustment of compression of the socket and the plurality of elongate counters around the residual limb.

The present invention is directed to an autonomous exoskeleton device that includes one or more actuators, one or more controllers, one or more sensors with one or more unidirectional transmissions. The present invention provides a mechanical joint in parallel with a biological joint. The exoskeleton device preferably includes and electric motor and winch, chain, belt, cam transmission or other mechanism for providing unidirectional force to assist rotation about the biologic joint. Moreover, a controller, a motor angle sensor, joint angle sensor and/or force sensor may be used for additional control and monitoring of the device. The motor may be any type of motor, but is preferably brushless in configuration where its diameter is larger than its length to provide a compact and lightweight exoskeleton device.

Prosthesis devices can include sockets having adjustable features. In one example, a socket includes one or more panels that can move outwardly or inwardly relative to a receptacle portion of the socket. The panels can be moved by tightening a tensioning line.

The invention relates to an enveloping body for at least partially enveloping a limb, having an enclosed volume and a connection for supplying and removing fluid to the volume or from the volume, wherein the enveloping body forms an inner circumference and an outer circumference; on the enveloping body reinforcement elements are arranged that are designed to be brought into contact as a result of the removal of fluid from the volume or to increase their contact with one another as a result of the removal of liquid.

Prosthesis devices can include sockets having adjustable features. In one example, a socket includes one or more panels that can move outwardly or inwardly relative to a receptacle portion of the socket. The panels can be moved by tightening a tensioning line.

A shock-absorbing twisting structure includes a first seat and a second seat. The first seat includes an elastic member. A stop member is arranged at one side of the first seat. The second seat is formed with a receiving chamber that is fit over the first seat, such that the elastic member is set in elastic engagement with and is supported between the first seat and the second seat. A main axle penetrates through the second seat and is received in the first seat to set the second seat in a rotatable condition. An elastic unit is arranged at each of two sides of the receiving chamber and the stop member.

Damper system for orthopaedic devices, with a proximal fastening device and a distal fastening device which are coupled to each other in such a way as to be displaceable relative to each other, with a first hydraulic or pneumatic damper device, which is arranged between the fastening devices and has a flexion chamber and an extension chamber separated from each other by a movable piston and connected fluidically to each other by at least one overflow line, wherein a second damper device with a parallel action, and with a velocity-independent hysteresis behaviour, is arranged between the fastening devices and is configured as a tube structure damper.

The present invention relates to a prosthesis covering (100) with a closed cross-section which comprises a first section (10), a second section (20) and a third section (30). The second section (20) is arranged in longitudinal direction between the first section (10) and the third section (30) and consists of other material than the other two sections. The second section (20) may optionally at least in a first subsection (21) be folded, doubled over, raised, lamella-like or multi-layer.

The disclosure describes an adjustable modular prosthesis system comprising of repeating and interconnecting modular linkages. The modular linkages can be configured in a number of ways to form a network of modular linkages that comprise an adjustable custom socket around the limb of a user. The disclosed system further comprises a tensioning system that allows a user to control the socket's fit around their limb. The disclosed prosthesis system has a very low unique part count, may be mass-produced at low cost, and provides easy-to-use means of adjusting the shape and size of the socket to correspond with changes in a user's limb.