Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).

Abstract: The invention relates to a femoral component (1) of a knee replacement assembly. The knee replacement assembly is arranged to articulate about an articulation axis (X). The femoral component comprises an outer surface (100), wherein the outer surface is arranged to define a replacement condyle; and an inner surface (200), opposed to the outer surface, wherein the inner surface is adapted for attachment to a prepared distal femur. The inner surface comprises portions (210, 220, 230, 240) provided with mutually-parallel ridges (201) and grooves (202). The ridges and grooves are arranged to provide an increased or reduced stiffness of the femoral component when cantilevered about the articulation axis compared with a stiffness of the femoral component when cantilevered about a transverse axis.

Abstract: The invention relates to a femoral component (1) of a knee replacement assembly. The knee replacement assembly is arranged to articulate about an articulation axis (X). The femoral component comprises an outer surface (100), wherein the outer surface is arranged to define a replacement condyle; and an inner surface (200), opposed to the outer surface, wherein the inner surface is adapted for attachment to a prepared distal femur. The inner surface comprises portions (210, 220, 230, 240) provided with mutually-parallel ridges (201) and grooves (202). The ridges and grooves are arranged to provide an increased or reduced stiffness of the femoral component when cantilevered about the articulation axis compared with a stiffness of the femoral component when cantilevered about a transverse axis.

Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).

Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).

Abstract: The invention relates to a system for controlled loading of a reconstructed human or animal tissue during the healing phase, comprising an anchor element (10) for implanting in a first bone (50), at least one connecting element (20), and one retaining element (30) for the at least one connecting element (20) on a second bone (40). The anchor element (10) and/or the connecting element (20) and/or the retaining element (30) are made of self-dissolving bioresorbable material.

Abstract: A knee joint endoprosthesis (1) for forming an articulation between a femur and a tibia includes a femur component (2), which is connected to the femur, a tibia component (4), which is connected to the tibia, and an intermediate element (3) which is mounted between the tibia component (4) and the femur component (2). This intermediate element lies against the femur component (2) with a modular sliding surface (9) which includes a lateral sliding surface (9a) and a medial sliding surface (9b), and can be connected in a releasable manner to the tibia component (4). The lateral sliding surface (9a) and the medial sliding surface (9b) of the intermediate element (3) have different sagittal cross-sectional profiles.

Abstract: A system (100) for a controlled stressing of a reconstructed or re-natured ligament of a human or animal body comprises an anchoring element (10) for implantation in a first bone (50), at least one connecting element (120) and a holding element (30), which fixes the at least one connecting element (20) in a second bone. According to the invention, an elastomer element (125) is arranged in the anchoring element and/or in the connecting element (120) and provides a defined elastic action through the cooperation of elastomer element (125) with the connecting element (120).

Abstract: An implant (10) for implantation in a human or animal bone (11) has a bone area (12), which is in contact with the bone (11), and a light area, which is not covered by the bone (11). It likewise has a photo-activatable substance (14), which is activated when illuminated with light (2) and thereafter destroys microbes and bacteria. The implant (10) is made of a material which is transparent at, at least, one activation wavelength of the photo-activatable substance (14), wherein the photo-activatable substance (14) is applied at least to the surface of the bone area (12) of the implant.

Abstract: The invention relates to a system for controlled loading of a reconstructed human or animal tissue during the healing phase, comprising an anchor element (10) for implanting in a first bone (50), at least one connecting element (20), and one retaining element (30) for the at least one connecting element (20) on a second bone (40). The anchor element (10) and/or the connecting element (20) and/or the retaining element (30) are made of self-dissolving bioresorbable material.

Abstract: The invention relates to a joint socket (1) for a hip-joint endoprosthesis (2), wherein the joint socket (1) comprises ageing-resistant materials and forms a low-abrasion sliding pair together with a joint head (3). The joint socket (1) provides an implant surface (4), which is formed from a material with a porous surface, wherein the isoelastic structure of the joint socket (1) according to the invention and the joint head (3) achieves a physiological load transfer by means of specially designed materials, of which the modulus of elasticity is adapted to the values of a spongy bone material.

Abstract: The invention relates to an intervertebral disk implant (1) which is used to implant between two vertebrae (2), comprising at least two components (3,4; 13,14,15) which form at least one sliding pair and which are made of a ceramic material. The at least two ceramic components (3,4; 13,14,15) are arranged in a covering (5).

Abstract: A ligament tensing device (1) for activating a ligament and/or capsule system during implantation of a joint implant, comprising a base body (2) having a first lug (3) with a distal bearing surface (4) resting upon a first bone, and a second lug (7) resting upon a second bone with a proximal bearing surface (10) thereof. The second lug (7) is displaceable in an anterior-posterior and/or medial-lateral direction parallel to the first lug (3).

Abstract: A knee joint endoprosthesis (1) for forming an articulation between a femur and a tibia comprises a femur component (2), which is connected to the femur, a tibia component (4), which is connected to the tibia, and an intermediate element (3) which is mounted between the tibia component (4) and the femur component (2), lies against the femur component (2) with a modular sliding surface (9), comprising a lateral sliding surface (9a) and a medial sliding surface (9b), and can be connected in a releasable manner to the tibia component (4). The lateral sliding surface (9a) and the medial sliding surface (9b) of the intermediate element (3) have different sagittal cross-sectional profiles.

Abstract: A ligament-tensioning device (1) for preparing the implantation of an articulated implant consists of a base body (5) comprising first claws (6, 6?) provided with first bearing surfaces (7, 7?) applied to a first bone part (33) and second claws (13, 13?) provided with a second bearing surfaces (10, 10?) applied to a second bone part (34). The claws (6, 6?; 13, 13?) are displaceable with respect to each other with the aid of parallel-displacement devices (12, 12?). In addition, the invention provides for a first scale (31) disposed on the base body (5) of the ligament-tensioning device (1) and second medial and lateral scales (32, 32?) corresponding to the first scale (31), wherein the second scales (32, 32?) are disposed on a guiding body (3) which is movably mounted with respect to said base body (5) by means of the parallel-displacement devices (12, 12).

Abstract: The invention relates to a joint prosthesis, especially a knee joint prosthesis, for establishing an articulated connection between a first bone and at least one second bone. The inventive prosthesis comprises a first component (1) that is at least indirectly linked with the first bone, at least one second component (2) on which the second bone at least indirectly supports itself and which is movably mounted on at least one bearing surface (22) of the first component (1), and a connecting element (4) that interlinks the first component (1) with the second component (2). The connecting element (4) comprises an elastically deformable element (5) that facilitates a deflection of the first component (1) relative to the second component (2) from an initial position. When the first component (1) is deflected, the elastically deformable element (5) generates a restoring force that acts upon the first component (1) and restores the first component (1) to the initial position.

Abstract: A prosthesis for repairing a knee is made with an insert sandwiched between a femoral component and a tibial tray. The parts are shaped so that both the femoral component and the tibial tray will slidingly interface with the insert during motion of the knee. At regions where the femoral component interfaces with the insert during extension and during an initial range of flexion of the knee, the femoral component's radius of curvature (R1) for flexion rotation is larger than its radius of curvature (R3) for varus/valgus rotation. In a preferred embodiment, the surface of the tibial tray is convex and spherically curved, and the insert is free to move in both the posterior-anterior direction and the medial-lateral direction with respect to the tibial tray.

Abstract: The invention relates to a positioning instrument (1) for inserting an extension shell (2) into a human or animal bone, especially a pelvic bone. Said instrument comprises a fixing device (18) for fixing the extension shell (2) to the positioning instrument (1), and a displacement device (55) for displacing a disc element (15) of the positioning instrument (1) at least essentially axially in relation to the extension shell (2) fixed to the fixing device (18). Said disc element (15) co-operates with beveled surfaces (25a to 25e) of the extension shell (2) during the displacement, in order to tighten the extension shell (2). Furthermore, the disc element (15)-viewed in the direction of insertion (13)-does not project beyond the radially furthest projecting elements (32a, 32b) of the tightened extension shell (2).

Abstract: A ligament tensing device (1) for activating a ligament and/or capsule system during implantation of a joint implant, comprising a base body (2) having a first lug (3) with a distal bearing surface (4) resting upon a first bone, and a second lug (7) resting upon a second bone with a proximal bearing surface (10) thereof. The second lug (7) is displaceable in an anterior-posterior and/or medial-lateral direction parallel to the first lug (3).

Abstract: A ligament-tensioning device for preparing for the implantation of a joint implant has a base body, having a first claw with a distal bearing surface which rests on a first bone, and a second claw which rests, with a proximal bearing surface, against a second bone. The second claw is displaceable parallel to the first claw. A cutting jig can be placed onto mounts of the base body of the ligament-tensioning device.