9 results about "Bone replacement" patented technology

The invention of the gradient porous structured sacral prosthesis and the manufacturing process aims to create an alternative replacement for bone loss in patients who require bone replacement. The gradient porous structured sacral prosthesis consists of an artificial bone fragment, a metal rod, and a set of screws for fixing the fragments. The manufacturing process consists of seven steps: Identifying the position and boundaries of the bone, First-step topology optimization, Second-step topology optimization, Defining the structural pattern and unit cell size, Designing the artificial bone implant, Mechanical performance testing of the implant, and Fabrication of the sacral implant. The devices and processes according to the present invention are clearly sequenced and characterized. Modification or change in the manufacturing sequence or use may reduce the capabilities of the present invention or make it unusable for the purposes of the present invention.

This invention provides a method, apparatus, storage medium, and device for real-time debugging of animation skeletons, comprising: acquiring an animation skeleton sent by a first terminal and a first bone replacement file sent by a second terminal; extracting a first interface marker from the first bone replacement file; traversing all interface markers contained in the animation skeleton to determine a second interface marker that matches the first interface marker; overwriting the bone code portion corresponding to the second interface marker with the first bone replacement file to obtain a debugged animation skeleton; sending the debugged animation skeleton to the first terminal; and publishing the debugged animation skeleton after receiving debugging confirmation information from the first terminal. By receiving debugging of local bones of the animation skeleton from different functional terminals at the engine end, the debugging efficiency of different functional terminals for the same animation skeleton is improved.

[Problem] To provide a wet apatite porous body and a wet apatite curable composition exhibiting excellent bone conduction and bone replacement properties, and wet apatite and related materials for regenerating cartilage. Another problem is to provide an apatite-based curable composition, a calcium phosphate composition, a calcium carbonate composition, supporting bodies, and the like necessary to provide the abovementioned, and related manufacturing methods. [Solution] This problem has been solved by discovering a wet apatite porous body, a wet apatite curable composition, a wet apatite composition and related materials for regenerating cartilage, and manufacturing methods for these.

Graft for a bone defect, in particular a tibial head graft for a knee-joint endoprosthesis. It comprises a sleeve-like inner body (2) for implantation at one end of a long bone (99). An outer face of the inner body (2) is designed as a bone contact face (20) for bearing on the surrounding bone margin (97). According to the invention, an outer shell piece (3) is provided which, as a bone replacement piece, is doubled onto the outside of the inner body (2) for filling a defect at the cortical bone margin (97) and is not dimensioned peripherally, such that, in the circumferential direction, it covers only a part of the outer circumference of the inner body (2). The doubled outer shell piece (3) forms a filler piece for a bone defect (bone window 96) at the bone end. Closure of the bone window (96) is achieved, and unwanted contact between the graft and surrounding soft-tissue parts is avoided. Moreover, the graft is thus also supported in the region of the bone window (96). Parts of the bone margin (97) that are still present can thus remain intact, allowing the greatest possible preservation of naturally present bone substance.

The present invention relates to the field of bone replacement materials and bone scaffolds. In particular, the invention relates to a bone replacement material comprising:-at least one porous calcium silicate-coated particle comprising: a core which is a porous particle having microporosity and macroporosity; and made from at least one calcium phosphate-based compound; and a calcium silicate coating completely or partially embedding the core; the calcium silicate coating comprises 60% to 100% by weight of at least one calcium silicate compound based on the total weight of the calcium silicate coating; and optionally, at least one uncoated porous particle having microporosity and macroporosity and made of at least one calcium phosphate-based compound. The invention also relates to a bone scaffold resulting from hydration of a bone substitute material of the invention; and a method for manufacturing the bone replacement material.

This invention belongs to the field of bone replacement material technology, specifically relating to a porous biodegradable bone replacement scaffold and its preparation method. The porous biodegradable scaffold of this invention consists of pillars, each pillar having an outer shell and a core. The outer shell comprises ZnO, and the core comprises Zn. The porous biodegradable bone replacement scaffold of this invention has a nano- to millimeter-level hierarchical pore structure, which is more similar to the structure of human bone. Furthermore, its degradation performance, antibacterial properties, and biocompatibility are superior to existing biodegradable metallic bone implant materials (zinc and its alloys), which helps promote osteogenic differentiation.

This application relates to the field of medical devices, and more particularly to a 3D-printed personalized subtotal femoral replacement prosthesis, comprising a 3D-printed femoral segment. One end of the 3D-printed femoral segment has a short medullary nail integrally formed therein, which is inserted into the remaining femoral medullary cavity after osteotomy. The end of the 3D-printed femoral segment away from the short medullary nail is connected to the proximal femur, which is used to connect to the femoral head prosthesis. A reinforcing screw is inserted within the 3D-printed femoral segment, coaxially arranged with the 3D-printed femoral segment, and is used to sequentially penetrate from the distal end of the remaining femur into the short medullary nail and the 3D-printed femoral segment. This application has the effect of improving the stability of the femoral replacement prosthesis.

Provided is a total talar replacement prosthesis that has a metallic body shell and a metallic or biologic core, where the metallic body shell includes one or both of a removable calcaneus attachment and a removable navicular attachment. The attachments, when removed, exposes a respective calcaneus-facing surface or a navicular-facing surface that can enhance fusion to the respective bones, calcaneus and / or navicular.