13 results about "Autogenous bone" patented technology

The utility model provides an intraoperative autogenous bone granule crushing device, and belongs to the technical field of medical treatment. Comprising a bone crushing outer cylinder; the bone crushing inner cylinder is positioned in the bone crushing outer cylinder; a crushing structure is mounted on the bone crushing inner cylinder; the driving part is positioned on the bone crushing inner cylinder and is used for driving the bone crushing inner cylinder to rotate; the bone crushing ring is positioned on the inner wall of the bone crushing outer cylinder and is in threaded connection with the inner wall of the bone crushing outer cylinder; and the transmission rod is mounted on the driving part and rotates along with the driving part. According to the bone crusher, the crushing structure on the bone crushing inner cylinder is matched with the crushing structure on the inner wall of the bone crushing ring, the bone crushing ring can move up and down in the bone crushing outer cylinder through the two-way thread structure, bone crushing materials are crushed from multiple dimensions, and compared with the prior art, the bone crusher can more effectively enable the sizes of crushed bone particles to be more uniform, so that the bone crushing efficiency is improved. The strict requirements on the size and the uniformity of the small-particle crushed bone in the operation are met, and the stable performance of the crushed bone material in the subsequent operation is facilitated.

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 invention provides a 3D bone printing material which comprises biological bone meal with biological activity and bone cement, the biological bone meal is prepared from one or more of autogenous bone, allogeneic bone or animal bone, the bone cement comprises powder and liquid, the mass ratio of the biological bone meal to the bone cement is 1: 1-1: 12, and the mass ratio of the bone cement powder to the bone cement liquid is 0.5: 1-1.5: 1.

The utility model belongs to the technical field of medical instruments, and particularly relates to a half-moon-shaped bone slice drill which comprises a positioning rod and a cutting body, the positioning rod is fixedly connected with the cutting body through a locking nut, an outer cover is rotatably sleeved on the positioning rod, and an outer cover body is sleeved outside the outer cover in a threaded mode. According to the semilunar bone slice drill, the five parts are assembled into a whole, so that the semilunar bone slice drill is convenient to disassemble, convenient to produce and machine, and convenient to deeply clean the drill bit after clinical operation; the semilunar bone slice drill is made of hard medical stainless steel, is provided with a sharp and ultra-thin cutting edge and has excellent cutting efficiency, loss of autogenous bones during bone slice taking is reduced to the maximum extent, convenience and efficiency of an operation are greatly improved, a protective sleeve is arranged outside a bone slice taking rotor to prevent mucosa from being accidentally injured in the bone slice taking process, and the semilunar bone slice drill is safer and more efficient. Due to the hollow design of the bone slices and the protective sleeve, water cooling of the cutting area is greatly enhanced, and the quality and activity of the obtained bone slices are higher.

The invention discloses an intelligent auxiliary method for autologous bone transplantation, which comprises the following steps: constructing a three-dimensional jaw bone model, a three-dimensional tooth model and a three-dimensional defect area model based on CBCT (cone beam computed tomography) image data of a target object; according to the three-dimensional defect area model, obtaining defect area three-dimensional form data, inputting the defect area three-dimensional form data into the trained bone increment prediction model, and outputting to-be-supplemented autologous bone block design parameters; according to the design parameters of the to-be-supplemented bone block, in combination with the three-dimensional tooth model, determining a bone taking position of the to-be-supplemented bone block in the three-dimensional jaw bone model, and automatically marking the bone taking position so as to plan a bone block cutting path; according to the bone block cutting path, a predicted cutting force is obtained by combining a cutting force model; planning the motion track of the mechanical arm according to the predicted cutting force to realize auxiliary cutting of the autogenous bone block; in the cutting process, the actual cutting force is monitored in real time, and the movement track of the mechanical arm is dynamically adjusted according to the actual cutting force. According to the method, the preoperative planning is optimized, the operation precision in the operation is improved, and the operation risk is reduced.

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.

The invention discloses bone transplantation minimally invasive equipment and a bone taking method thereof, and belongs to the field of medical instruments. The hollow drill bit is used for drilling bone tissue, meanwhile, the drilled bone tissue and bone marrow are collected through negative pressure suction, the purpose of fully automatically obtaining autogenous bone and bone marrow through a minimally invasive channel is achieved, and effective separation and independent collection of solid bone tissue and bone marrow are achieved. According to the invention, the drilled bone tissue material is directly adsorbed and collected into the first collecting cavity under negative pressure, so that mechanical damage and thermal damage to the bone tissue in the process of collecting and conveying the bone tissue material by adopting a spiral conveying mechanism and other mechanical mechanisms are avoided. According to the bone taking method implemented by adopting the bone transplantation minimally invasive equipment, effective bioactive components such as stem cells and growth factors in the separated bone marrow can be quickly enriched in artificial bones or autogenous bones in the process of obtaining bone transplantation materials, so that the biological activity of the artificial bones or the autogenous bones is achieved; the synchronous implementation of the biological activity recovery of the artificial bone and the acquisition of the bone tissue material is realized.

The invention provides an interbody fusion cage which comprises a shell and vertebral plates, the shell is not lower than the vertebral plates, a containing cavity is formed between the shell and the vertebral plates, the vertebral plates are symmetrically arranged up and down, each vertebral plate is provided with a first sliding rail and a second sliding rail and is further provided with a vertical groove and a circular ring groove, the vertebral plates are of a multi-layer design, and the vertical grooves and the circular ring grooves are formed in the shell. A first vertebral plate and a second vertebral plate are respectively arranged from inside to outside; the transmission device comprises a first lifting column and a second lifting column, reverse threads are arranged on the outer surfaces of the first lifting column and the second lifting column, the transmission device further comprises a stopping device, the first lifting column and the second lifting column are sleeved with the stopping device, and the stopping device is composed of a dovetail protruding block and a dovetail groove; the driving device comprises a clamping ring, a supporting rod, a supporting block and a supporting groove, the clamping ring and the supporting rod are detachably connected and placed in the annular groove, and the supporting rod is inserted into the supporting groove and fixedly connected with the supporting block. According to the technical scheme, the damage of the prosthesis surface to the autogenous bone in the operation can be effectively avoided.

The invention discloses a bone drill for dental implant, and aims to solve the problems of bone waste and insufficient initial stability of an implant when a traditional bone drill is used for drilling. The device comprises a drilling part, a transition part and a clamping part, has the advantages of being simple and clear in structure, easy and convenient to operate and high in operation accuracy and safety, solves the problems of bone waste, maxillary sinus lifting, operation complexity, large trauma, long healing time and the like during implantation hole preparation in the traditional technology through the synergistic effect of reverse threads and a taper structure, and is suitable for popularization and application. By means of the design, the autogenous bone scraps can be stored and utilized to the maximum extent, waste of bone resources is avoided, the autogenous bone scraps can be conveyed to the tip while the cavity is prepared, safe and efficient maxillary sinus lifting is achieved by extruding and conveying the autogenous bone scraps, the osteogenesis efficiency and the implant stability are improved, operation wounds and operation difficulty are reduced, and the operation cost is reduced. The obvious clinical application value is realized.

The invention relates to the technical field of bone treatment, in particular to an autogenous bone taking-bone treatment composite device which comprises a bone taking device, and the bone taking device comprises a positioning bone taking mechanism used for accurately obtaining a bone block in a specific form and a positioning bone cutting mechanism used for integrally cutting off bone tissue. The bone taking device, the bone grinding device, the clamping and implanting mechanism and other components are arranged, accurate positioning is achieved through cooperation of the drill sleeve body, the first fixing nail and the kirschner wire, the trephine assembly takes bones under guiding, the bone cutting mechanism is positioned to achieve overall bone cutting, the bone grinding device machines the cut bones into filling materials, and the bone cutting efficiency is improved. According to the clamping and implanting mechanism, reliable clamping and precise implanting of bone blocks are achieved through sliding fit of a conical protrusion and a sleeve, then the functions of bone taking, bone treatment and implanting are integrated, sterile and efficient operation in the whole process is achieved, and the effects that the tool switching frequency, the bone block pollution risk and iatrogenic injuries in an operation are remarkably reduced are achieved.

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.

The invention relates to the technical field of dental implant, and discloses a bone block trimming method, system and device for oral implant autologous bone block transplantation and a medium, and the bone block trimming method for oral implant autologous bone block transplantation comprises the following steps: obtaining digital imaging information of a user; according to the digital imaging information, carrying out bone form design on an implanted region, and determining form information of an autologous bone block and the implanted region of the user; determining cutting information of an autologous bone block according to the form information; the autologous bone block is trimmed according to the cutting information, a trimmed bone block is obtained, and the shape of the trimmed bone block is matched with the shape of the implanted area. According to the method, the finishing precision can be improved, and then the matching degree and finishing efficiency of the bone block and the implanted area bone defect form are improved.