Abstract: The invention relates to a prosthetic knee joint with a joint lower part, a joint upper part and a hydraulic system with at least one switch valve, wherein the hydraulic system comprises an extension chamber, a flexion chamber and at least one piston, the movement of which causes the volume of the extension chamber and/or the flexion chamber to change, the switch chamber comprises a valve housing and a switch element movably mounted therein, which can be brought into a first position and into a second position within the valve housing and divides an interior of the valve housing into a first chamber and a second chamber, the switch element is pre-tensioned by at least one pre-tensioning element arranged in the switch valve, the prosthetic knee joint comprises at least one spring element that applies a counter-force to the switch element, which is oriented against the pre-tension, wherein, within the valve housing and/or the switch element, at least one fluid connection is arranged between the first chambe

Abstract: The invention relates to an orthopedic device comprising at least one joint and a hydraulic system with at least one valve. The hydraulic system is filled with a hydraulic fluid and the hydraulic fluid contains a silicone oil (2) and an additional oil (4) which has at least one ester group.

Abstract: A jointless prosthetic foot having a leaf spring which has a distal footfall section, a connecting section and a proximal attachment section which extends in an anterior-posterior direction and to which an attachment adapter can be fixed. The attachment adapter is mounted such as to be movable along a convexly curved path in the anterior-posterior direction.

Abstract: A prosthetic foot with a structural component having a proximal attachment member for fastening the prosthetic foot to a below-knee tube, a below-knee shaft or a prosthetic knee joint, with a forefoot portion secured or formed on the structural component, and with a heel-side spring-damper system which is assigned to the structural component and which is compressed at a heel strike and bears on a sole-side guide element. The structural component is designed as a leaf spring which extends in a posterior direction from the proximal attachment means, and forms an arch and is guided in an anterior and distal direction, wherein the arch protrudes posteriorly beyond the guide element.

Abstract: A prosthetic foot with a structural component having a proximal attachment member for fastening the prosthetic foot to a below-knee tube, a below-knee shaft or a prosthetic knee joint, with a forefoot portion secured or formed on the structural component, and with a heel-side spring-damper system which is assigned to the structural component and which is compressed at a heel strike and bears on a sole-side guide element. The structural component is designed as a leaf spring which extends in a posterior direction from the proximal attachment means, and forms an arch and is guided in an anterior and distal direction, wherein the arch protrudes posteriorly beyond the guide element.

Abstract: A jointless prosthetic foot having a leaf spring which has a distal footfall section, a connecting section and a proximal attachment section which extends in an anterior-posterior direction and to which an attachment adapter can be fixed. The attachment adapter is mounted such as to be movable along a convexly curved path in the anterior-posterior direction.

Abstract: An orthopedic device includes two components that are configured to be movable relative to on another (e.g., longitudinally translatable, pivotable, etc.). The relative movement of the two components is transmitted as unidirectional mechanical energy by means of a transmitting mechanism which includes an energy accumulator connected to a generator. The mechanical energy is thereby converted to electric power.

Abstract: An orthopedic device includes two components that are configured to be movable relative to on another (e.g., longitudinally translatable, pivotable, etc.). The relative movement of the two components is transmitted as unidirectional mechanical energy by means of a transmitting mechanism which includes an energy accumulator connected to a generator. The mechanical energy is thereby converted to electric power.

Abstract: The invention relates to an orthopaedic aid, in particular to a prosthesis (58) or orthosis comprising an orthopaedic fluid damper (10) with a displacement chamber (14) formed in a housing (12), with a piston (16) mounted in the displacement chamber (14), with a fluid reservoir for a fluid (20), with a return flow conduit (22) connecting the displacement chamber (14) to the fluid reservoir, with a valve (24) that can adopt an open position and a closed position, in which it at least partially closes the return flow conduit (22), and with a joint (72) that has a first branch (60) and a second branch (66), wherein the first branch (60) is connected to the housing (12) and the second branch (66) is connected to the piston (16). A device (84) is also provided for detecting a joint force (FB) acting on the joint, which device (84) is designed to bring the valve (24) to the closed position when the joint force (FB) exceeds a predefined threshold value.

Abstract: Prosthetic or orthotic joint with at least two joint segments that are mounted rotatably to each other around a joint axis, and a pivotal piston mounted in torque-proof fashion in one of the upper or lower joint segments. The pivotal piston is received in a displacement chamber containing a fluid, with the pivotal piston subdividing the displacement chamber into two partial chambers that are connected with each other via a connecting channel at least across a selected pivoting angle range of the pivotal piston. At least one flow section determining contour is formed between the pivotal piston and one selected displacement chamber wall, which is in a fluidic connection with the connecting channel and the displacement chamber across a selected rotation angle. The contour also provides a varying free flow section for the passage of the fluid dependent on the rotational position of the pivotal piston.