A prosthetic knee joint includes a thigh connection part to be positioned near a thigh part, a lower leg part rotatibly coupled to the thigh connection part, and a power generating, part for generating power using a resistance resulting from rotation of the lower leg part relative to the thigh connection part.

An electric prosthetic limb is provided with: a below-knee side member; an above-knee side member; a knee joint mechanism that connects the below-knee side member and the above-knee side member in a manner such that an angle formed therebetween is variable; and an extendable device that is capable of extending and contracting to change the angle formed between the below-knee side member and the above-knee side member. The extendable device is provided with a motor and a transmission transmitting power from the motor. The transmission is provided with: a first transmission mechanism that transmits the power from the motor at a first transmission gear ratio; and a second transmission mechanism that transmits the power from the motor at a second transmission gear ratio different from the first transmission gear ratio.

An orthopedic device has a base and a pivot element which is mounted in an articulated manner on the base. The pivot element is displaceable via a force transmission element connected to a drive from a starting position into a pivoting position that is pivoted in relation to the starting position. The force transmission element permits passive pivoting of the pivot element in the direction of the pivoting position without activation of the drive. A spring element designed for counteracting passive pivoting of the pivot element into the pivoting position is assigned to the pivot element. The spring element is formed separately from the force transmission element, and the force transmission element blocks deformation of the spring element during pivoting by the drive into the respective pivoting position.

A prosthetic arm apparatus comprising a plurality of segments that provide a user of the prosthetic arm apparatus with substantially the same movement capability and function as a human arm. The segments are connectable to one another and connectable to a harness mount that may be adorned by the user. Each segment of the plurality of segments provides a portion of the movement capability, enabling the plurality of connected segments connected to the harness mount to provide substantially the same movement capability as that lacking in the user.

Prosthetic devices and, more particularly, modular myoelectric prosthesis components and related methods, are described. In one embodiment, a hand for a prosthetic limb may comprise a rotor-motor; a transmission, comprising a differential roller screw; a linkage coupled to the transmission; and at least one finger coupled to the linkage. In one embodiment, a component part of a wrist of a prosthetic limb may comprise an exterior-rotor motor, a planetary gear transmission, a clutch, and a cycloid transmission. In one embodiment, an elbow for a prosthetic limb may comprise an exterior-rotor motor, and a transmission comprising a planetary gear transmission, a non-backdrivable clutch, and a screw.

A system for powering a prosthetic arm is disclosed. The system includes at least one internal battery located in the prosthetic arm, at least one external battery connected to the prosthetic arm, and a master controller configured to connect either the at least one internal battery or the at least one external battery to a power bus to power the prosthetic arm.

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.

A prosthesis or an orthosis and method of operating the same. The prosthesis or orthosis comprising a moveable component, a motor operable to move the component, wherein the motor has at least one operating parameter, the application of which to the motor results in the component having at least one operating condition; and an electronic device operable to: determine at least one operating parameter of the motor and determine at least one instantaneous operating condition of the component from a predetermined operating profile of the motor and component and the determined at least one operating parameter of the motor, the predetermined operating profile of the motor and component being based on one or more operating parameter inputs to the motor and one or more resulting operating condition outputs of the component.

A prosthetic arm apparatus including a plurality of segments that provide a user of the prosthetic arm apparatus with substantially the same movement capability and function as a human arm. The segments are connectable to one another and connectable to a prosthetic support apparatus that may be adorned by the user. Each segment of the plurality of segments provides a portion of the movement capability, enabling the plurality of connected segments connected to the harness mount to provide substantially the same movement capability as that lacking in the user.

A wrist device for a prosthetic limb is provided. The device (1) comprises a base member (3) connectable to the wearer of the device, and a support member (13) connectable to the limb. The support member (13) is pivotably connected to the base member (3) such that the support member can pivot about a pivot axis (A) relative to the base member. A damping mechanism is located between the base (3) member and the support member (5). The damping mechanism comprises a pinion (47) connected to the support member (5) and rotatable about the pivot axis (A) relative to the base member (3). A rack (35) is engaged with the pinion (47) such that rotational motion of the pinion causes a linear motion of the rack, and at least one biasing member (41) extends between the base member (3) and the rack. The biasing member (41) biases the rack (35) and support member (13) into a neutral position. A prosthetic limb incorporating the wrist device is also provided.