A prosthesis socket having a proximal insertion opening and an inner circumference which at least partially surrounds a limb stump, at least one connection device for a prosthesis component, which is connectable to the prosthesis socket, at least one actuator operable to change the inner circumference of the prosthesis socket, and at least one sensor coupled to a control device, wherein the control device is connected to the actuator and activates or deactivates same, depending on the received sensor signals, and to a method for adjusting the inner circumference.

The invention relates to a system composed of a prosthetic-foot insert (1), comprising: a proximal attachment device (2) for fixing the prosthetic-foot insert (1) on a stump or a prosthetic component; and at least one sole element (3), which is connected to the attachment device (2); wherein the system comprises a plurality of different force-transmission elements (4, 5), which can be fastened to the at least one sole element (3) at at least one fastening region (34, 35) and comprise various distal sole contours (41, 51) and/or various force-transmission regions (42, 52).

One aspect of the invention provides a prosthetic foot including a heel member, a toe member, and an attachment member comprising a shear thickening material (STM). In one embodiment, the attachment member has a first end and a second end. The first end can be connected to the heel member, and the second end can be connected to the toe member. In another embodiment, the attachment member further comprises an elastic polymer. In one instance, the elastic polymer is impregnated with the STM. In yet another embodiment, the attachment member further comprises an elastic reservoir. The elastic reservoir can contain the STM. Alternatively, the attachment member further comprises a rigid reservoir. The rigid reservoir can contain the STM.

A prosthetic knee for active users has a locking head generally parallel to a vertical axis of the prosthetic knee, a chassis, and a plurality of links connecting the locking head to the chassis. The knee includes a swing control mechanism having a flexion stop connected to the chassis and arranged to control the flexion angle of the knee. The flexion stop extends outwardly from the chassis and obliquely relative to the vertical axis. The knee has an audible feedback mechanism for providing the user with information about the location of the knee. The knee may also have a block lock forming a manually activated mechanism allowing load bearing in a flexed position.

A prosthetic foot includes a heel member and a forefoot member. An ankle member receives the heel member and forefoot member shaft so as to allow the heel member and forefoot member to translate independently of one another.

A foot prosthesis having an upper part and a lower part, which is set on the ground as the user walks, one part being arranged on top of the other a certain distance away. The two parts are connected to each other at the tip of the foot. The upper part and the lower part are formed by a one-piece component. In the area near the heel, an elastic damping element is arranged between the upper part and the lower part and is connected to the upper part and/or to the lower part. A compressible but longitudinally strong connecting element, which connects the upper part to the lower part, and which is guided through a recess in the damping element, is provided.

A traction system for an ambulatory support such as a prosthetic foot blade or a crutch includes a sole plate, a latch assembly, and a strap. The sole plate is couplable to a distal end of the ambulatory support to extend under a bottom side of the ambulatory support and a latch assembly. The latch assembly includes a front catch and a rear catch both fixable at a top side of the ambulatory support with the front catch nearer to the distal end of the ambulatory support than the rear catch, and a lever having a front end and a rear end, the front end releasably latchable to the front catch and the rear end releasably latchable to the rear catch when the lever is pivoted about the latched front end. The strap is secured to the lever and to the sole plate.

A mechanical transmission, tethered actuation system, an autonomous ankle exoskeleton design and method of their use employing a cable, pulleys and associated pulley housings to change angular transmission of linear force on the cable. The pulleys are linked by a ground link and the cable is threaded across and between the pulleys, whereby rotation of either of the pulleys in one direction causes rotation of the other pulley in the opposite direction. Independently of the pulleys, the pulley housings can freely rotate about associated pulleys, and a link between the pulley housings is provided, whereby rotation of one of the pulley housings in one direction causes rotation of the other pulley housing at an equivalent angle in the opposite direction, thereby enabling a change in transmission angle of linear force on the cable threaded across and between the pulleys and the associated pulley housing essentially without resistance. When pulleys have the same angular velocity ratio as that of the associated pulley housings, there is no cable slack since the net changes in length of the cable wrapping around two pulleys is zero.

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 socket for engaging a residual limb includes a plurality of hard counters, each configured to engage the residual limb at defined “go points”. The go points can bear pressure without discomfort or impeding range of motion. The counters are further configured to avoid contact with identified “no go” points where excess tissue may inhibit motion or experience irritation upon movement and which include one or more contoured pads to more effectively engage the bony prominences of the limb without inhibiting motion. A chassis from which each of the counters may flexibly depend connects the residual limb mechanically to a limb extension. A lacing system alternately intersects the counters and terminates in a tensioning reel. Rotation of the tensioning reel in a first direction will draw the laces over each of the counters such that the tensioned laces will draw counters together to engage the residual limb.