9 results about "Autologous bone" patented technology

This utility model relates to the field of orthopedic implant technology and discloses a prosthesis for defects after partial atlas resection. It aims to solve the problems of existing technologies, such as the lack of atlas prosthesis implants, long recovery times after autologous bone grafting, and the ineffective fixation of titanium mesh implants. This utility model includes a prosthesis that replaces the atlas, with bone screw holes to accommodate bone screw fixation contact points. The prosthesis includes an outer frame, which is a porous tubular or porous columnar structure. The cavity of the porous tubular structure is filled with autologous bone, allogeneic bone, or artificial bone. The upper and lower ends of the outer frame are provided with curved surfaces matching the facet joints of the occipital condyle and axis, and a support unit is provided within the outer frame. This utility model, combined with 3D printing technology, matches the shape of the corresponding segment and resection site, thereby replacing the resected segment, promoting the fusion of the atlantoaxial segment, and facilitating the restoration of the physiological function of the upper cervical spine.

The present invention provides a bone graft composite material and a manufacturing method therefor. The bone graft composite material is applied to wound repair of a user in orthopedic surgery and dental surgery, and is used to promote wound healing of the user, induce growth of an autologous bone cell of the user, and induce fusion of a transplanted bone of the user with the autologous bone cell. The bone graft composite material comprises a high molecular polymer, bone powder, and exosomes. Compared with the prior art, the bone graft composite material provided by the present invention has better osteoinductivity and compatibility, and can stably release biological factors, thereby promoting the repair and regeneration of bone.

The application discloses a bone regeneration kit and implant system for immediate implantation, and belongs to the technical field of oral implant medical devices. The kit comprises a patient personalized component and a universal component; the patient personalized component comprises a segmented personalized abutment and a rigid barrier membrane, the abutment comprises, from top to bottom, a transgingival forming part, a titanium mesh fixing part and an implant connecting part, and the rigid barrier membrane is fixed to the titanium mesh fixing part through a mounting hole; the universal component comprises a plasma matrix preparation component and a bone crumb collector. The application further provides an implant system comprising the kit, an implant and a complete autologous plasma matrix bone block. The rigid barrier membrane is directly fixed to the abutment to form a three-level rigid support, and the titanium nail fixing is omitted; the transgingival forming part of the abutment is customized based on digital scanning to realize soft tissue simultaneous sealing and aesthetic shaping; the bone crumb collector scrapes autologous bone crumb from the bundle-shaped bone area of a tooth extraction socket, and the autologous bone crumb is mixed with autologous plasma matrix to form a bone block without adding exogenous materials. The application realizes the synergistic effect of rigid maintenance of bone space, complete autologous bone regeneration and soft tissue simultaneous forming.

The application discloses a ZTA ceramic intervertebral fusion cage and a preparation method and application thereof. The ZTA ceramic intervertebral fusion cage is composed of a dense outer wall and a porous inner part, wherein the porous inner part has a gradient porous three-period minimal surface structure; the material of the ZTA ceramic intervertebral fusion cage is a calcium-magnesium silicate mineral / ZTA composite ceramic material, and the preparation process comprises the following steps: ceramic powder and photosensitive raw materials are prepared according to a design proportion, ceramic slurry is obtained by mixing, the ceramic slurry is added into a photocuring printing device, photocuring printing is carried out according to a ZTA ceramic intervertebral fusion cage model to obtain a ceramic green body, and the ZTA ceramic intervertebral fusion cage is obtained by performing degreasing and sintering on the ceramic green body. The gradient biomimetic structure intervertebral fusion cage provided by the application has the properties of matching the mechanical property of autologous bone, adjustable performance, good biocompatibility, good bone inductive performance and the like.

This invention discloses an autologous bone graft guide assembly and an autologous bone trimming method. The guide assembly includes a bone harvesting guide, a titanium screw guide, a bone grafting guide, a trephine, a drill bit, and titanium screws. Each of the bone harvesting guide, titanium screw guide, and bone grafting guide includes interconnected positioning and operating areas. The operating area of ​​the bone harvesting guide includes a trephine positioning hole. The operating area of ​​the titanium screw guide includes a titanium screw positioning hole, the positioning area of ​​which is the same as that of the bone harvesting guide, and the position of the titanium screw positioning hole corresponds to the center of the trephine positioning hole. The operating area of ​​the bone grafting guide includes a bone graft positioning hole of the same size as the trephine positioning hole. This guide assembly unifies the donor site bone harvesting boundary, pre-drilled hole site, and recipient site bone graft fixation position on the same spatial reference, achieving millimeter-level precise navigation and titanium screw fixation throughout the autologous bone grafting process. It is particularly suitable for "more harvesting, less grafting" clinical scenarios in the oral cavity where bone removal is required in the donor site and bone grafting is required in the recipient site, significantly improving autologous bone utilization and surgical predictability.

This invention discloses an autologous bone filling and anchoring device for repairing glenoid bone defects, belonging to the field of orthopedic medical device technology. The device includes a deformable basket, a fixing base plate, a central bolt, locking wires, and a fixing ring. The deformable basket is a cylindrical cage with an open upper end woven from titanium alloy wire, with a closed-loop locking buckle at the open end connected by locking wires, and its lower end is integrally formed with the fixing base plate. The central bolt engages with the internal threaded hole of the fixing base plate, and the fixing ring is fitted onto the hexagonal prism of the central bolt. Both ends of the locking wire are fixedly connected to the fixing ring. Tightening the central bolt simultaneously applies axial compression and radial clamping force to the autologous bone within the basket, achieving three-dimensional uniform pressure. The fixing base plate can be fitted with side plates with pressure holes and suture holes to achieve multi-point anchoring and soft tissue suturing. This invention can reduce autologous bone loss, improve bone healing efficiency, simplify surgical procedures, and is suitable for various glenoid bone defect repair scenarios.

This invention discloses a device for fixing and trimming autologous bone grafts for dental implants, belonging to the field of dental medical device technology. The device includes a first clamping arm and a second clamping arm; the first and second clamping arms are hinged together by fasteners to form a scissor-like lever structure; the first clamping arm includes a first gripping part and a first clamping section, the first clamping section being connected to a positioning frame; the second clamping arm includes a second gripping part and a second clamping section; the second clamping section is connected to a movable pressure plate; the positioning frame and the movable pressure plate are arranged opposite to each other and together enclose a bone placement cavity for accommodating and fixing the autologous bone graft. This invention adopts an integrated design, integrating four core functions—stable clamping, anti-slip fixation, precise cutting guidance, and pre-positioning of bone screw holes—into a single handheld instrument, achieving a "one-stop" precise, efficient, and stable preparation from bone graft to ready-to-use bone graft.