Abstract: A tibia implant for joint replacement has a plateau section and an anchor section projecting from a tibia-facing side of the plateau section. The anchor section is insertable into a channel in a tibia bone. The plateau section has a first surface structure that is a porous open-pore surface structure with bridges, webs or wall regions that can be gripped from behind in the axial direction on the tibia-facing side that comes into contact with tibia bone tissue. The open-pore surface structure has a first roughness. The anchor section is connected to the plateau section in a first axial anchor region on the circumferential side has a surface structure with a second roughness that is lower than the first roughness. The anchor section has a second axially free-ending axial anchor region with a smooth surface in the axial direction adjacent to the first axial anchor region.

Abstract: A process for coating a medical implant includes the step of depositing a ceramic multi-layer coating on a surface of the implant via pulsed magnetron sputtering. The pulsed magnetron sputtering can be carried out as pulsed DC magnetron sputtering or high-power impulse magnetron sputtering. Pulses with a peak power density of 0.01 kW/cm2 to 30 kW/cm2 can be generated during the pulsed magnetron sputtering. In addition, pulses with a frequency of 10 Hz to 300 kHz can be generated during the pulsed magnetron sputtering. Moreover, pulses having a voltage of 200 V to 800 V can be generated during the pulsed magnetron sputtering. Furthermore, pulses having a duration of 10 ?s to 200 ?s can be generated during the pulsed magnetron sputtering. The process can be used to make implants, such as joint implants, having a ceramic multi-layer coating.

Abstract: An integrated therapy chain is used for planning and carrying out insertion of an implant system. The therapy chain includes preoperative, intraoperative and postoperative therapy steps. The system includes a first data device for gathering, processing and providing patient-specific kinematic data, a second data device for gathering, processing and outputting patient data, a third data device for storing and outputting data of the predetermined implant system, and a control unit for controlling the data devices and for carrying out the therapy steps based on the aforementioned data. The first data device outputs a first data set including the currently gathered, patient-specific kinematic data, and a second data set including historical data based on older insertions of the implant system. The second data set supplements the first data set. A method can be performed for the preparation of an operation to insert an implant system.

Abstract: A method for simulating and selecting an implant for optimized insertion or joint replacement during a surgical procedure on a patient includes the steps of: reading at least one implant parameter, in particular an implant dimension and/or a weight restriction, of a selected implant model; calculating, based on the at least one implant parameter, simulated loads due to predefined forces and momenta at and on the implant mode; determining, based on the at least one implant parameter, whether load limits of the implant model are adhered to in the simulated loads; and, outputting, via a display device, visual confirmation of a selection of the implant model if the load limits are adhered to, or outputting a visual warning before selection of the implant model if the load limits are exceeded. An implant assistance system and a computer-readable storage medium are used to perform the method.

Abstract: A knee endoprosthesis for total knee arthroplasty has a femur bearing surface and a tibia bearing surface. The femur bearing surface has a medial surface and a lateral surface. The tibia bearing surface has a concave medial shell and a concave lateral shell and is configured for sliding on the femur bearing surface. The medial and lateral shells form an asymmetric surface. The medial and lateral surfaces form a non-asymmetric or quasi-symmetric bearing surface. The medial and lateral surfaces coincide in an anterior femur condylar radius. The tibia bearing surface forms an anterior contour portion with an anterior point and a posterior contour portion with a posterior point. The anterior point is proximally elevated relative to the posterior point. A portion of the anterior portion at the medial shell forms an antero-medial apex point. An inlay can be arranged at the tibia part.

Abstract: A knee prosthesis system includes a set of femoral components of different sizes. Each femoral component has a pair of condyles defining an intercondylar notch and a posterior cam positioned in the notch. At least one of the condyles has a curved condyle surface with multiple radii of curvature. The system also includes a set of tibial components of different sizes. Each tibial component has a curved bearing surface with multiple radii of curvature and a post. Each size of femoral component is engageable to at least one size of tibial component to articulate by contact between the condyle surface and the bearing surface and/or by contact between the cam and the post. The radii of curvature of the condyle surface increase monotonically across increasing size of the femoral components, and the radii of curvature of the bearing surface increase monotonically across increasing size of the tibial components.

Abstract: A method for producing a sliding surface element on the basis of UHMWPE for a joint endoprosthesis includes mixing UHMWPE in powder form with 0.09 to 0.11% by weight of an antioxidant, compacting the UHMWPE mixed with the antioxidant into a molded body, manufacturing one or more sliding surface elements from the molded body by material-removing machining, and irradiating the sliding surface element by gamma radiation or X-ray radiation with a radiation dose of 25 to 45 kGy in order to crosslink the UHMWPE. The method can be practiced without thermal post-treatment of the irradiated sliding surface element.

Abstract: A bone implant includes a main body in the form of a hollow body open on both sides in the axial direction. The main body includes a load-bearing material. An encasing body at least partially encases the main body on the outside and includes an in vivo degradable/in vivo resorbable material. Alternatively, the encasing body includes a multiplicity of shaped bodies protruding from the main body in the radial direction that include an in vivo degradable/in vivo resorbable material. A method for producing the bone implant includes an additive manufacturing process. The main body can be at least partially encased by the encasing body in the additive manufacturing process.

Abstract: The invention relates to an implant with a shank which is insertible into a bone cavity, which shank is made of a plastic, in particular of a bioincompatible plastic, and defines at least one bone contact face, wherein the bone contact face is provided or coated with a first biocompatible bone contact layer or bears a biocompatible bone contact layer, wherein the shank of the implant is intended to be anchored in the bone cavity without bone cement and wherein the first bone contact layer is formed entirely closed.

Abstract: The invention relates to a joint implant part of a joint endoprosthesis. The joint implant part comprises at least one first volume region, at least one second volume region and at least one third volume region. The at least one first volume region defines a bone contact surface region with at least one bone contact surface. The at least one second volume region defines a joint surface region with at least one joint surface. The at least one third volume region comprises neither a bone contact surface nor a joint surface. A modulus of elasticity in the at least one first and/or in the at least one second and/or in the at least one third volume region changes continuously or substantially continuously or discontinuously in at least one spatial direction.

Abstract: A bone replacement material having reinforcing elements and a modelable mass which is curable on contact with water or an aqueous liquid. as well as a process for producing a bone replacement material, to a further bone replacement material and to medical kits for treatment of bone defects.

Abstract: The invention relates to an implant with a shank which is insertible into a bone cavity, which shank is made of a plastic, in particular of a bioincompatible plastic, and defines at least one bone contact face, wherein the bone contact face is provided or coated with a first biocompatible bone contact layer or bears a biocompatible bone contact layer, wherein the shank of the implant is intended to be anchored in the bone cavity without bone cement and wherein the first bone contact layer is formed entirely closed.

Abstract: A bone replacement material having reinforcing elements and a modelable mass which is curable on contact with water or an aqueous liquid as well as a process for producing a bone replacement material, to a further bone replacement material and to medical kits for treatment of bone defects.

Abstract: The invention relates to a joint implant part of a joint endoprosthesis. The joint implant part comprises at least one first volume region, at least one second volume region and at least one third volume region. The at least one first volume region defines a bone contact surface region with at least one bone contact surface. The at least one second volume region defines a joint surface region with at least one joint surface. The at least one third volume region comprises neither a bone contact surface nor a joint surface. A modulus of elasticity in the at least one first and/or in the at least one second and/or in the at least one third volume region changes continuously or substantially continuously or discontinuously in at least one spatial direction.

Abstract: The invention relates to an artificial meniscus part for a knee-joint prosthesis that has on an upper side at least one femoral joint surface for the movable mounting of an artificial, natural or machined condyle of a femur, wherein the at least one femoral joint surface is configured in the form of a depression facing away from the meniscus part wherein the depression has an anterior and a posterior end region and a width of the depression has a minimum between the anterior and the posterior end region. An improved meniscus part set, an improved knee-joint prosthesis and an improved knee-joint prosthesis set are further proposed.

Abstract: The invention relates to an artificial meniscus part for a knee-joint prosthesis that has on an upper side at least one femoral joint surface for the movable mounting of an artificial, natural or machined condyle of a femur, wherein the at least one femoral joint surface is configured in the form of a depression facing away from the meniscus part wherein the depression has an anterior and a posterior end region and a width of the depression has a minimum between the anterior and the posterior end region. An improved meniscus part set, an improved knee-joint prosthesis and an improved knee-joint prosthesis set are further proposed.

Abstract: In the case of a medical implant system with an implant made of a composite material in which glass fibers are embedded, to obtain information on physical states of the implant in its environment it is proposed that a sensor element which is embedded in the implant and comprises at least one of the glass fibers is coupled to a measuring device which determines a physical property of the sensor element or its environment and changing of this property.

Abstract: An assembly for a gas bag restraint system is provided. This assembly comprises an elongate housing provided with open axial ends. Within the housing a gas generator is accomodated which is held axially between two covers closing said open ends of said housing.