A prosthetic knee can include a variable-torque magnetorheological (MR) actuator assembly or braking system, a frame and an electronics assembly or system that also serves as a mount for the knee actuator and facilitates in monitoring and controlling the operation of the knee actuator. The prosthetic knee system advantageously provides resistive forces to substantially simulate the position and motion of a natural knee joint during ambulation and/or other locomotory activities performed by the amputee. The prosthetic knee can have a series of internal blades for providing resistive forces. A locking ratchet can be used to lock knee position. A dynamic seal with a protective shim can be disposed in the knee actuator. A coil with a non-circular cross-section can be used.

A lower extremity prosthetic socket, according to some embodiments. The lower extremity prosthetic socket includes a shell having variable thickness along a longitudinal length of the shell. The lower extremity prosthetic socket is configured to provide stability for a residual limb of a user when worn by the user. The lower extremity prosthetic socket is configured to distribute forces. The shell is configured to conform to an anatomical structure of the residual limb of the user.

A protective device for an upper extremity post-operative residual limb of a user. The protective device includes a multi-section shell having a shape that corresponds to an anatomical structure of the upper extremity post-operative residual limb of the user. The protective device also includes a hinge coupled with a first section and a second section of the multi-section shell, the hinge configured to facilitate relative rotation of the first section and the second section to transition the protective device between an open configuration and a closed configuration. The multi-section shell is configured to receive one or more attachments to increase functionality of the upper extremity post-operative residual limb of the user.

A hinged connecting device comprising a damping mechanism intended to counter a predetermined resistance at least during bending of the prosthesis (1), by replacing the muscle groups usually used for this purpose. The damping mechanism (200) is capable of being switched between a first operating mode (M1), selected by default, in which the value of the resistance corresponds to a first maximum value (Vmax), and a second operating mode (M2), that can be actuated only in a hyperextension position (P0) of the prosthesis (1), in which the resistance value corresponds to a second minimum value (Vmin); and the hinged connecting device (2) moreover comprises a fully mechanical locking system (3), arranged in order to allow the second operating mode (M2) to be activated only when the inclination of the tibial part (102) exceeds a first predetermined oriented angle (X1) relative to the vertical.

Underactuated prosthetic hand including base body; first and second prosthetic fingers each hinged to the base body; first control cable; actuator to move the first control cable; and for each pair of fingers second control cable having control ends associated with the first and second fingers; and transmission block to allow first control cable to control second control cable; transmission block includes guide integral with base body and defining sliding axis; movable element sliding along guide; first pulley for sliding first control cable hinged to movable element and second pulley for sliding second control cable hinged to the movable element so actuator, when moving first cable, determines moveable element translational movement to displace second control cable and the fingers; and elastic means opposing moveable element translational movement so the moveable element translational movement opposes elastic means allowing them to facilitate return to moveable element initial position.

A prosthetic system includes a movable joint defining at least one gap, and at least one spacer unit positionable in the at least one gap. The at least one spacer unit includes a resilient element that is controllably deformable to vary a thickness of the at least one spacer unit to fill the at least one gap, and to reduce the likelihood of the at least one spacer unit interfering with relative movement between components of the movable joint. The at least one material forming the resilient element is compressible in a first direction with little or no expansion in a second direction normal to the first direction.

An artificial wrist including a static body adapted to be bound to a support; a movable body adapted to be bound to an end effector; and a junction block defining an axis of rotation between the static body and the movable body and including a cable suitable to be moved by mutual rotation of the bodies and around the axis of rotation, and elastic member placing the cable under tensile stress and working in opposition to the movement of the cable to define a rest position in which the cable and the elastic member exerts a zero resulting torque on the bodies and, and an activation position in which they exert a non-zero resulting torque on the bodies and, bringing the bodies and back to the rest position.

The invention relates to a method for controlling an orthotic or prosthetic device and an orthotic or prosthetic device, which can be placed on the body of a user and secured, including a joint device having a proximal component and a distal component, which are pivotally mounted on one another about a pivot axis; at least one adjustable actuator which is arranged between the proximal component and the distal component and via which a movement behaviour relating to a pivoting of the proximal component relative to the distal component can be adjusted; at least one detection device for detecting muscle contractions; and a control device which is coupled to the detection device and to the actuator, processes (electrical) signals from the detection unit, and adjusts the actuator according to the signals, wherein the detection device is designed for detecting muscle contractions.

The present invention relates to an artificial foot including a foot body part, a toe part rotatably disposed at a first end of the foot body part, a toe joint connecting the foot body part and the toe part to each other, and an adapter disposed on a top of a second end of the foot body part. According to the artificial foot, since the toes of the artificial foot rotate when a wearer walks, when the artificial toes come in contact with the ground, energy is stored due to the load by the weight and the toes kick off the ground as much as the elastic energy accumulated by the spring, so the toe members of the artificial foot do not drag on the ground. Accordingly, the wearer does not need to lift up the hip joints, so the wearer can walk similar to normal walking.

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.