4 results about "Autogenous bone" patented technology

The utility model discloses a cylindrical bone drill relates to the field of medical devices, and the cylindrical bone drill includes: drill body and the coaxial setting connecting handle with it, wherein, the drill body is the cylindrical structure of diameter 2.2 5.8mm, in the drill body including the spiral cutting head of integral processing formation, the spiral cutting head is by 4 10 spiral distribution cutting blade of the axial distribution of drill body constructs, and the front blade of every cutting blade is 58 62 with drill body axis angle of clamping, and the depth value of cutting blade is 0.5 1.45mm, and the outer periphery of drill body is equipped with the marking unit that the annular concave point circle group of the axial interval of 1 3mm is composed, the cylindrical bone drill of the utility model has cutting stable, bone mud delicate, mark clear and the like advantage, is applicable to the precision oral surgery such as planting, periodontal in autogenous bone collection and bone mud preparation, improves the operation efficiency and accuracy.

The application discloses an autogenous bone block grinding device for oral implantation and relates to the technical field of special instruments for oral implantation. The autogenous bone block grinding device comprises a grinding cylinder, the grinding cylinder comprises an outer cylinder and an inner cylinder, and a driving shaft rod is rotatably arranged in the inner cylinder. A driving assembly is arranged on the top sidewall of the driving shaft rod, the driving end of the driving assembly is arranged in the interlayer groove between the outer cylinder and the inner cylinder, the driving end of the driving assembly is fixedly provided with an anti-sloshing assembly, the anti-sloshing assembly can realize bidirectional clamping and limiting of the bone block in the grinding disc, the upper narrow and lower wide arc-shaped groove on the anti-sloshing limiting plate is matched, the irregular bone block shape is matched, the contact area is increased, the circumferential slip and the radial jumping of the bone block during grinding are effectively prevented, the dry friction between the bone block and the grinding structure is reduced, the local friction heating is reduced, the osteoblasts and active factors are prevented from being damaged, and the biological activity of the autogenous bone is maximally reserved.

The present invention pertains to the field of biomaterials for covering and protecting bone grafts / biomaterials, and relates more specifically to a titanium mesh covered with a biocompatible polypropylene film that aims to increase bone volume using biomaterials or using grafts in their most varied forms, such as autogenous bone (bone from the individual), allogenous bone (bone from other individuals of the same species), and xenogenous bone (bone from individuals of a different species) for the subsequent installation of osteointegrated implants. When the claimed mesh protected with a polypropylene film is used, with the film blocking the holes, the materials used to increase the volume do not pass through the holes of the mesh, as they are blocked by the polypropylene film, making these meshes 100% waterproof. This makes it easy to remove the mesh and, as there is no penetration of material through the holes, the implants are installed over a large amount of bone tissue. When using the titanium mesh with the polypropylene film, in contrast to when it does not have this protection, it does not need to be completely covered by surgical flaps, facilitating the surgical technique and thus avoiding post-operative complications due to exposure that often occurs with unprotected meshes. In addition, it is advantageous that the mesh can be kept intentionally exposed to the mouth environment, placed over the materials used to achieve bone volume augmentation, regardless of the materials used underneath it, whether grafts or biomaterials (synthetic materials). This brings greater comfort to the patient, as it provides a post-operative period with very low morbidity and a rapid recovery.

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.