31 results about "Autologous bone" patented technology

The invention relates to the technical field of bone tissue engineering and regenerative medicine, and discloses a stem cell-loaded bionic bone scaffold material, which comprises a bone scaffold main body, the bone scaffold main body is formed by compounding hydroxyapatite and a biodegradable high-molecular polymer and has a porous structure, the porosity is 70%-90%, the aperture range is 100-500 microns, and pores are communicated with one another; a vascularization induction factor slow release system is arranged in the porous structure of the bone scaffold main body, the stem cell-loaded bionic bone scaffold material does not need to take the autologous bone of a patient, and the problems of donor injury and limited sources are avoided; the composite scaffold is matched with low-immunogenicity stem cells, so that the risks of immunological rejection and disease transmission are avoided; the material has the advantages of good biocompatibility, mechanical matching with human bones, degradability, no secondary operation, promotion of vascular regeneration and stem cell osteogenesis, and realization of bone regeneration integration.

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 present invention relates to a guide for an autologous bone graft, in a printed model of a jaw (1) of a patient, which comprises a stop (3) formed by a perforated plate, from which support projections (4,5,6) emerge for supporting the alveolar bone of the patient's jaw or maxillary, which define through holes between the projections (4,5,6), the stop (3) having respective grooves (31) on the sides of the projections (4,5,6) to support the sheets (0). The invention may comprise brackets (2) that can be attached to the printed model, facing the grooves or a screw hole (32) for screwing to the teeth.

The invention belongs to the technical field of medical experimental animal models, and discloses a small animal model for skull base high-flow cerebrospinal fluid leakage and skull base reconstruction as well as a construction method and application of the small animal model. The technical obstacle that due to the fact that the nasal cavity of a small animal is narrow and the turbinate structure is complex, surgical instruments cannot reach the skull base through the nose is overcome, meanwhile, a modeling and repairing area is arranged on the rear nasal meatus and the top wall of the nasopharynx, and the temperature and humidity conditions and environment of the nasal mucosa are reserved; and the microenvironment for tissue healing after the endoscopic transnasal skull base surgery is restored on the pathophysiological level. The dissected marking points are clear, and compared with narrow anterior skull base low-flow cerebrospinal fluid leakage of small animals, the standardized bone defect constructed in the middle skull base butterfly saddle area can cause continuous and high-flow cerebrospinal fluid leakage; autologous bone flap and free mucous membrane repair is used, the method is the same as current clinical practice, and a new platform can be provided for screening of skull base repair materials or operation evaluation and retrograde intracranial infection research after an operation.

The invention discloses an autogenous bone taking instrument which comprises a bone taking device, a positioner and a positioning channel, and the bone taking device has various forms. The trephine bone extractor is mainly used for obtaining complete bone blocks; after the spiral bone fetcher is positioned, the spiral structure drives the cut bone blocks to enter the storage cavity; the ring cutting bone taking device can be used for completely cutting bone blocks; the spiral lifting bone taking device can store broken bone blocks in a centralized mode through a spiral structure. The bone taking bin is composed of a bin body and a bin cover, and bone scraps are cut through an incomplete circular groove. The bone scraper scrapes broken bones in the bone taking channel through the sharp cutting edge at the front end, and the broken bones can be taken out through the storage cavity. Three fixing needles are arranged on the edge of the positioner to facilitate intraoperative positioning, and a bone taking hole is formed in the middle and used for positioning the intraoperative bone taking device. The positioning channel is of an oval exposed structure and has two forms. The autologous bone extractor is high in bone extraction efficiency and operation precision, and the operation effect and the postoperative recovery effect of a patient can be effectively optimized.

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 utility model discloses a bone tissue biopsy minimally invasive device, including sampling subassembly, cutting subassembly and cannula subassembly, sampling subassembly includes sampling piece and install the sampling handle on the sampling piece, cannula subassembly includes along the vertical direction set sleeve and along the horizontal direction set handle, the handle is installed on the top of sleeve, and the cutting subassembly is installed on the top of sleeve. The sampling piece extends into the sleeve, and the cutting assembly is installed at the bottom of the sleeve and connected with the sampling piece. The bone taking device can remarkably shorten the bone taking time, reduce trauma of the bone taking part and improve the efficiency and the curative effect of an autologous bone grafting operation at the same time.

The invention discloses a personalized implantation structure and method for improving insufficient chin anterior movement in a chin shaping surgery, the personalized implantation structure comprises an implant and a chin anterior movement osteotomy matched with the implant, and the implant is fixed on the chin anterior movement osteotomy. Compared with the prior art, osteotomy forward movement and the implant are combined together to be applied to the chin forming operation, and when the chin bone mass of a patient is insufficient, supplementation can be conducted through the implant. Compared with an autogenous bone or an artificial bone for transplantation, the implant does not need to face the problems of absorption, rejection and the like, and the risk of a secondary operation cannot be increased; meanwhile, compared with the mode that the prosthesis is completely adopted for implantation, the burden of mandibular fibrous tissue can be relieved, and the risk of implant displacement can also be reduced.

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.

This invention provides an interbody fusion device, comprising: a shell and a vertebral lamina, wherein the height of the shell is not less than the height of the vertebral lamina, and an accommodating chamber is formed between the shell and the vertebral lamina. The vertebral lamina is symmetrically arranged vertically and vertically, and is provided with a first slide rail and a second slide rail, as well as a vertical groove and an annular groove. The vertebral lamina has a multi-layer design, with a first vertebral lamina and a second vertebral lamina respectively arranged from the inside out; a transmission device, comprising a first lifting column and a second lifting column, both of which have reverse threads on their outer surfaces; and a stop device, which is sleeved on the aforementioned first and second lifting columns and consists of a dovetail protrusion and a dovetail groove; and a driving device, comprising a retaining ring, a support rod, a support block, and a support groove. The retaining ring is detachably connected to the support rod and placed in the annular groove, and the support rod is inserted into the support groove and fixedly connected to the support block. The technical solution of this application can effectively solve the problem of damage to autologous bone caused by the surface of the prosthesis during surgery.

The invention provides an interbody fusion cage which is connected between a first vertebral body and a second vertebral body, and further, the interbody fusion cage comprises a first connecting part used for being connected with the first vertebral body; the second connecting part comprises a main body piece used for being connected with the first connecting part; the connecting piece is used for being connected with the second cone and is separated from the main body piece; the rolling part is arranged between the main body piece and the connecting piece, so that the relative position of the main body piece and the connecting piece can be adjusted in the transverse direction; the first locking piece is arranged on the rolling part; the second locking piece is arranged on the main body piece or the connecting piece, and the second locking piece can be matched with the first locking piece in a locking mode so that the main body piece and the connecting piece can be connected, and the relative positions of the main body piece and the connecting piece can be kept unchanged. According to the technical scheme, the problem that an interbody fusion cage in the prior art is prone to friction with autologous bones can be effectively solved.

The invention discloses a bone meal and autologous bone blood mixing, feeding and filling system, and relates to the field of medical instruments, the system comprises a bone meal and autologous bone blood mixing and stirring mechanism, a raw material feeding mechanism detachably connected to the bone meal and autologous bone blood mixing and stirring mechanism, and a feeding mechanism detachably connected to the bone meal and autologous bone blood mixing and stirring mechanism; the blood bone crushing and feeding mechanism is detachably connected with a valve port in the bone meal and autologous bone blood mixing and stirring mechanism through a lower channel, and the blood bone sucking mechanism is connected with the blood bone crushing and feeding mechanism through a conveying pipeline; the autologous bone blood and bone meal mixing and stirring mechanism is used for finally outputting a mixed and filled bone meal finished product in the bone meal and autologous bone blood mixing and stirring mechanism to a bone defect area; by means of the unique structural design, autologous bones, solid growth factors and the like can be cut into appropriate small particles, meanwhile, autologous blood is collected in real time to be mixed with bone meal, full-automatic stirring and conveying are achieved at the same time, the automation degree is high, mixing is uniform, and bone tissue repair and regeneration are better promoted.

The invention relates to the technical field of medical materials, in particular to a plasma matrix bone block and a preparation method and application thereof. According to the preparation method provided by the invention, the cell-deficient plasma matrix and the bone repair material are mixed to prepare the plasma matrix bone block, a three-dimensional fibrous protein network structure is densified by utilizing a surface heating mode, the degradation performance and the cell barrier function of the plasma matrix bone block are effectively improved, and meanwhile, by injecting a cell concentrated solution enriched with effective biological components, the effective biological components can be effectively degraded. The finally prepared plasma matrix bone block has excellent biological activity. When the prepared plasma matrix bone block is applied to repairing treatment of alveolar burst, soft tissue cells can be prevented from invading a bone regeneration area, the stability of a regeneration space is maintained, and absorption of a transplanted material is delayed. Compared with autogenous bone transplantation, the method has the advantages that a second operation area can be prevented from being developed, meanwhile, the problems of insufficient sources and the like do not need to be considered, and the defects of autogenous bone transplantation are avoided.

A device(100) and method(4100) for autologous bone graft harvesting simultaneously cuts a cross-section of a bone(900) longitudinally with a longitudinal drill assembly(102), and transversely with a saw assembly(126) during a bone(900) drilling to obtain a bone block for repairing and rebuilding diseased bones. The longitudinal drill assembly(102) and the saw assembly(126) simultaneously cut a cross-section of a bone(900). The device(100) is hand-controllable, drill motor powered, and spring-tensioned to selectively cut internally to the captured bone for internal bone harvesting. The longitudinal drill assembly(102) includes a drill shaft(114) extending perpendicular from a drill plate(112), having a flat surface(204) with a depth gauge(116). A module assembly(118) includes a module plate(120) disposed above the drill plate(112). Pins(302a,302b) extend from the upper face(308a) of the module plate(120) to engage ends of slots(400a,400b) to restrict over-rotation of saw plate(128). The saws (136a,136b) move between an open position(700a) for stowage, and a closed position(700b) while sawing the bone(900).

The invention relates to the technical field of crushing equipment, in particular to bone crushing equipment for bone grafting operation suitable for spine surgery. A bone crushing cavity is formed in the bone crushing machine, a bone crushing block is slidably connected to the bottom of the bone crushing cavity, and bone crushing teeth are arranged on the bone crushing block in the moving direction of the bone crushing block and the side wall of the bone crushing cavity in an array mode; an eccentric power mechanism and a pulse mechanism are arranged in the bone crushing block, the eccentric power mechanism is used for driving the bone crushing block to reciprocate, and the pulse mechanism is used for generating pulse jet flow at the bottom of the bone crushing cavity based on movement of the bone crushing block; a filtering mechanism used for filtering bone particles is further arranged on the side wall of the bone crushing cavity, a preset distance is formed between the filtering mechanism and the bottom of the bone crushing cavity, and the filtering mechanism communicates with a collecting mechanism used for collecting the bone particles. According to the invention, autologous bones can be efficiently treated, and high-quality bone particles with uniform sizes can be prepared.

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 individual 3D printing mortise and tenon fusion cage comprises a fusion cage body, the fusion cage body is of a wedge-shaped hexahedron structure which is wide in the upper portion and narrow in the lower portion in the long axis direction, at least one threaded hole is formed in the upper surface of the fusion cage body, and a plurality of through type bone grafting hole channels are formed between the two opposite side faces of the fusion cage body. A mineralized extracellular matrix coating is arranged on the outer surface of the fusion cage body. According to the utility model, the wedge-shaped structural design with a wide upper part and a narrow lower part is adopted, so that good mechanical interlocking can be formed with a bone grafting groove after implantation, the stability is improved, and the risk of postoperative displacement is reduced. The fusion cage body is designed into a grid body with a microcosmic porous structure, micron holes provide an ideal space for bone cell ingrowth and vascularization, and transformation from mechanical fixation to biological fixation is achieved. The through type bone grafting hole channel provides sufficient space for implanting sufficient autologous bones, and the fusion process is further accelerated. The individualized matching degree is high, and the operation adaptability is good.

The invention provides a screw assembly and an acetabular cup prosthesis assembly.The screw assembly comprises a screw, an injection channel is formed in a screw body, and a through hole is formed in the side wall of the screw body; an insertion hole communicated with the injection channel is formed in the screw head, and a guide groove, an annular groove and a clamping groove are formed in the hole wall of the insertion hole; the guide groove extends in the axis direction of the screw body, and the first end of the guide groove penetrates through the surface of the screw head. The annular groove communicates with the second end of the guide groove, the clamping groove communicates with the annular groove, and the guide groove and the clamping groove are staggered in the circumferential direction of the annular groove; the first end of the conveying pipe can be matched with the inserting hole in an inserted mode, a clamping protrusion is arranged on the outer side wall of the first end of the conveying pipe, the clamping protrusion can be matched with the guide groove and the annular groove in a guiding mode, and the clamping protrusion can be matched with the clamping groove in a clamped mode. According to the technical scheme, the problem that in the prior art, connection between a bone screw and an autogenous bone is not reliable, and prosthesis looseness is likely to be caused is solved.

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.

The utility model relates to a 3D printed porous metal-ceramic assembled composite implant as well as a preparation method and application thereof. The 3D printing porous metal-ceramic assembled composite implant comprises a porous metal-ceramic implant body formed by compounding a 3D printing integrated porous metal module and a 3D printing integrated porous ceramic module, the porous metal-ceramic implant body and the net-shaped metal protection body are arranged on the periphery of the porous metal-ceramic implant body in a wrapping mode, and the assembled composite implant can be accurately matched with the appearance and the combination surface of bone tissue of a defect part. The composite implant has osteogenesis environment regulation and control functionalization, the movement function of defective bone tissue can be recovered immediately, the tissue microenvironment of a bone defect part is improved, new bone regeneration is accelerated, new bones are guided to grow towards the interior of the porous metal implant, rapid osseointegration of a bone / metal implant interface is achieved, and the bone / metal implant interface is improved. And the long-term treatment effect of 3D printing porous metal implant / autologous bone fusion type repair after ceramic degradation is achieved.

The invention discloses a knee joint injury repairing agent based on stem cells and a preparation method and application thereof, and belongs to the technical field of knee joint injury repairing, the knee joint injury repairing agent comprises adipose-derived mesenchymal stem cells, astragalus polypeptide, autologous knee joint bone meal, a traditional Chinese medicine extract A, a traditional Chinese medicine extract B, hyaluronic acid and quercetin, and a proper amount of PBS buffer solution with the pH value of 7.5 is dissolved. Autologous knee joint bone meal and astragalus polypeptide are added in the adipose-derived mesenchymal stem cell culture stage, so that osteogenesis directional differentiation of stem cells is started in advance. The bone meal provides an autologous bone matrix microenvironment, the astragalus polypeptide activates an osteogenesis-related signal channel, conversion of stem cells into bone cells is remarkably accelerated through double-effect synergism, the problem that in the prior art, differentiation is delayed after the stem cells are implanted into a body is solved, and the repair efficiency is remarkably improved.

The utility model discloses a disposable lumbar intervertebral bone grafting device and accessories thereof, and relates to the technical field of medical instruments. The bone grafting pipe is vertically arranged at the top of the base and is used for accommodating an autogenous bone; the limiting push rod is used in cooperation with the bone grafting tube, the autogenous bones in the bone grafting tube can be pushed to a lumbar surgery area, it can be ensured that a surgeon can clearly evaluate the number of the autogenous bones, the filling amount is accurately controlled, unnecessary problems caused by excess are prevented, and the situation that the fusion effect is poor due to insufficiency is avoided. A proper amount of autogenous bone is accurately filled in the lumbar intervertebral space, so that a better bony fusion effect between the lumbar intervertebral bodies can be promoted, the risk of post-operation vertebral body collapse is remarkably reduced, the formation of lumbar intervertebral artificial joints is effectively prevented, and a solid foundation is laid for the rehabilitation path of a patient.

The invention provides a semilunar autologous bone block preparation assembly and an alveolar ridge defect repair device, and relates to the field of medical instruments, the semilunar autologous bone block preparation assembly comprises an output shaft used for connecting an external driving source and realizing rotation of the output shaft; the cutting assembly comprises an inner sleeve and an outer sleeve, and the inner sleeve and the outer sleeve are coaxially arranged; the inner sleeve is arranged on the output shaft, an inner cutting gear ring is arranged on the end face, facing a target object, of the inner sleeve, the outer sleeve is arranged on the output shaft or the inner sleeve, and an outer cutting gear ring is arranged on the end face, facing the target object, of the outer sleeve; the limiting shell is arranged on the output shaft and located on the side, away from the inner sleeve, of the outer sleeve, and the end face of the limiting shell protrudes to the side, away from the outer sleeve, of the outer cutting gear ring and is used for abutting against the side wall of a target object. The semilunar autologous bone block preparation method has the advantage that the semilunar autologous bone block can be prepared conveniently.

The present application provides an intervertebral fusion cage connected between a first vertebral body and a second vertebral body, further comprising: a first connecting part for connecting with the first vertebral body; a second connecting part comprising: a main body for connecting with the first connecting part; a connecting piece for connecting with the second vertebral body and separately arranged with the main body; a rolling part arranged between the main body and the connecting piece to enable the main body and the connecting piece to adjust the relative position in the transverse direction; a first locking piece arranged on the rolling part; and a second locking piece arranged on the main body or the connecting piece, the second locking piece capable of locking with the first locking piece to connect the main body and the connecting piece and keep the relative position unchanged. The technical scheme of the present application can effectively solve the problem of the intervertebral fusion cage easily rubbing against autologous bone in the related art.

The invention discloses a bone screw implant for sacroiliac joint fusion and a using method, the bone screw implant comprises a fusion nail, the fusion nail is provided with a cutting edge, a coarse-pitch self-tapping thread and a fine-pitch self-tapping screw, and the coarse-pitch self-tapping thread and the fine-pitch self-tapping screw act on the sacrum and the ilium respectively; the bone grafts are arranged to be autogenous bones and / or allogeneic bones, and the bone grafts are combined with the human skeleton after the fusion nail is screwed into the human skeleton; the anti-rotation fixing cap comprises an outer ring seat, a middle seat and two anti-rotation connecting ribs; an inner hole of the fixing and locking nut is composed of a lower inner threaded hole and an upper inner hexagonal groove, the upper inner hexagonal groove is used for being matched with a hexagon wrench to conduct thread pressurization operation, and the fixing and locking nut is in downward pressure contact with the anti-rotation fixing cap to press the anti-rotation fixing cap into the ilium. By the adoption of the scheme, the gap between the sacrum and the ilium can be reduced or eliminated, meanwhile, the screw is prevented from retreating, and better fusion of the sacrum and the ilium is facilitated.

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.

1. The name of the design product: self-bone ring preparation drill (detachable). 2. The use of the design product: detachable self-bone ring preparation drill. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combination state reference Figure 1.