Abstract: The invention relates to an orthopaedic socket for bearing on and for receiving a limb stump or a limb, having at least one socket wall (2), a proximal access opening (3), a distal end (4) and at least one fastening device (5) which is arranged for fastening at least one distal orthopaedic component (6) to the socket (1), wherein at least one stiffening element (40) is arranged or formed on or in the socket wall (2), said stiffening element being assigned an adjustment device (30) and by means of which a stiffness of the socket wall (2) is reversibly variable at least in certain regions.

Abstract: A method for producing a three-dimensional object by an additive manufacturing process includes introducing at least one manufacturing material fed in a flowable state from at least one feed-in opening of at least one feed-in needle into a supporting material. After being fed in, the at least one manufacturing material is cured, but it remains flexible or elastic after curing. The contour and/or position of at least one part of the three-dimensional object within the support material is detected by at least one sensor.

Abstract: A three-dimensional product is produced by providing a support medium in a container, introducing a production material into the support medium by means of the at least one insertion nozzle, and curing the production material. In the process, the support medium contains particles made of solid matter.

Abstract: The invention relates to an orthopedic device with an energy storage device 2 that comprises at least one cylinder 4, in which a first cylinder chamber 6, a second cylinder chamber 8, which is fluidically connected to the first cylinder chamber 6 by at least one fluid line 14, and a piston 10 are located, wherein the piston 10 is arranged relative to the cylinder 4 such that it can be displaced in such a way that by displacing the piston 4, an operating medium, which is a fluid, is conveyed through the at least one fluid line 14 from one cylinder chamber 6, 8 into the other cylinder chamber 8, 6, wherein the energy storage device 2 has at least one compensation volume 24, which is fluidically connected to the fluid line 14 via a fluid connection 22, and a first controllable valve 26, by means of which the fluid connection 22 can be opened and closed.