Abstract: A damping device (1) for a prosthesis, comprising a first member (2) for connection to a first component, a second member (3) for connection to another component, and a means (4) for coupling together the first member and the second member and for relative displacement of the first member and the second member. A damping element (5) is arranged to counteract a relative displacement between the first member (2) and the second member (3) when loading the damping device (1). The coupling means 4 comprises at least two linkage arms (6, 7), both being pivotally arranged in relation to the first member (2) and the second member (3).

Abstract: An artificial multi-axis knee joint comprising an upper leg portion and a lower leg portion pivotally connected to each other by a front link for pivoting the front link and the upper leg portion relative to each other around a first geometrical pivot axis, and for pivoting the front link and the lower leg portion relative to each other around a second geometrical pivot axis. A rear link is pivotally connected to the upper leg portion for pivoting the rear link and the upper leg portion relative to each other around a third geometrical pivot axis, and pivotally connected at the other end thereof to the lower leg portion for pivoting the rear link and the lower leg portion relative to each other around a fourth geometrical pivot axis. The knee joint further comprises a further means which is integrated in the front link and the rear link.

Abstract: An artificial multi-axis knee joint comprising an upper leg portion (1) and a lower leg portion (2), the upper leg portion and the lower leg portion being pivotally connected to each other by means of a front link (3), which front link (3) at one end thereof is pivotally connected to the upper leg portion (1) for pivoting the front link and the upper leg portion relative to each other around a first geometrical pivot axis (5) and at the other end thereof is pivotally connected to the lower leg portion (2) for pivoting the front link and the lower leg portion relative to each other around a second geometrical pivot axis (6), and by means of at least one rear link (4), which rear link (4) at one end thereof is pivotally connected to the upper leg portion (1) for pivoting said at least one rear link and the upper leg portion relative to each other around a third geometrical pivot axis (7) and at the other end thereof is pivotally connected to the lower leg portion (2) for pivoting said at least one rear link and

Abstract: The present invention relates to an arrangement for a leg prosthesis (10) provided with a foot (12), which is connected to the leg prosthesis via an articulated axle (11), whereby first means (13, 14, 16–18, 30–33, 38) are arranged to provide a limited rotation of the foot relative the leg prosthesis from an initial position, in which position the leg prosthesis and the foot have a fixed angle relative each other, and second means (16–26) are arranged to provide a step-less adjustment of the fixed angle between the leg prosthesis and the foot in the initial position. According to the invention the first means (13, 14, 16–18, 30–33, 38) comprise a resilient element (14), which first end thereof is connected to the foot (12) via an elongated element (13) and which second end is connected to the leg prosthesis so that the leg prosthesis can be rotated relative the foot against the effect of the spring force of the resilient element.

Abstract: A device in a leg prosthesis which via a pivot axle is connected to the leg prosthesis, wherein first means are arranged to permit a limited rotation of the foot with respect to the leg prosthesis from an initial position, in which the leg prosthesis and the foot have a certain angle with respect to each other and second means are arranged to permit a stepless adjustment of the angle between the prosthesis and the foot in the initial position.

Abstract: A device of the kind that comprises a polycentric link mechanism with at least four elements, namely one front and one back base element (10, 11) and one upper and one lower connecting element (12, 13). The upper connecting element (12) forms a unit fixedly attached to a thighbone part (21) of prosthesis and the lower connecting element (13) forms a unit fixedly attached to the shank part (22) of prothesis. The back base element (11) is pivotably connected at its upper end to the upper connecting element (12) and pivotably connected at its lower end to the lower connecting element (13) via a jointed attachment element (23), the movement of which is limited by a resilient stop device (29), whereby also the forward movement of the back base element (11) is limited when the knee joint is in a substantially straight position.

Abstract: The present invention provides a locking device intended as a fastening element for prostheses, of the kind in which the prosthesis is attached to a cylindrical member. The locking device includes a housing with a through opening for receiving the cylindrical member and a locking mechanism arranged therein for locking to the cylindrical member in one axial direction thereof. In the housing along the through opening of the housing opposite the locking mechanism there is further arranged a spring-loaded gripping washer with a through opening which is somewhat larger than the diameter of the cylindrical member and which by an axle having a lever arm is brought to an inclined position and grips the cylindrical member and pulls the cylindrical member further into the housing.

Abstract: The present invention relates to a foot prosthesis comprising a front foot portion (1), a rear foot portion (2) and an intermediate foot portion (3) formed by a number of rods (8) of resilient material, which rods extend in the longitudinal direction of the foot prosthesis. According to the invention the rods (8) are rotatably connected with at least one of the front and rear foot portions (1,2).

Abstract: A locking device for securing a prosthesis to a cylindrical part attached to a wearer. The device allows insertion of the cylindrical part, such as a pin, to be inserted into the locking mechanism at an oblique angle.

Abstract: A device in a leg prosthesis provided with a shock- and torque absorber intended to absorb shocks as well as rotational movements which occur when the foot hits the ground during walking, running, jumping etc. and comprising two parts (10, 11) which are telescopically displaceable and rotatable with sect to each other. Mhm device further comprises a first resilient member (12) arranged between the two telescopic pars (10, 11) and said resilient member is arranged to be compressed at a telescopic movement of said parts in a retracting direction, that a second resilient member (19) is attached to the outer telescopic part (10) and limitedly displaceable in the inner telescopic part (11) limiting the telescopic movement as well as the rotational movement thereof in the outer telescopic part (10).