54 results about "Fracture union" patented technology

The present invention provides a novel 3D-printed bone plate, belonging to the field of medical device technology. The novel 3D-printed bone plate comprises: a bone plate, which is made by an additive manufacturing process and has a local reinforcement structure design for the reinforcement area. Through a 3D printing strategy with layer-by-layer energy density gradient changes, the density and mechanical properties of key parts are significantly improved, which not only greatly enhances the compression and shear resistance of the bone plate in the local area, but also ensures precise matching with the patient's bones, which is conducive to promoting stability in the fracture healing process. In addition, the design process based on the patient's CT / MRI data ensures that the bone plate can be customized for individual differences, thereby improving the success rate of the operation and the patient's recovery speed.

The invention discloses a titanium-magnesium hollow screw system capable of promoting fracture healing and a manufacturing method. The titanium-magnesium hollow screw system comprises a titanium-based supporting structure and a magnesium filling layer. The titanium-based supporting structure comprises a main body part, the surface of the main body part is provided with an imitated bone trabecula part, and a plurality of bone gaps are formed in the imitated bone trabecula part; wherein bone gaps are filled with the magnesium filling layer, and the magnesium filling layer is combined with the titanium-based supporting structure in a physical embedding mode; the titanium-based supporting structure bears and maintains initial fixation and long-term bearing, so that the strength and the stability of the screw are ensured; the surface imitated bone trabecula and the communicated bone gaps increase the surface area and provide a physical channel for vascularization and bone tissue ingrowth, so that synostosis is promoted; the magnesium filling layer releases magnesium ions after being locally controllably degraded, so that osteogenesis and angiogenesis are favorably stimulated, the local biological environment is improved, instant mechanical support after an operation is ensured, bone healing is promoted through local biological activity release and structural orientation, the healing time is favorably shortened, and the healing quality is favorably improved.

The invention discloses a fixing device for osteoporotic fracture, which comprises a tightening mechanism and a mounting mechanism, the tightening mechanism comprises a fixing plate and a fixing cylinder, the fixing cylinder is welded on the left side of the fixing plate, and a plurality of partition plates are uniformly welded in the fixing cylinder. According to the fixing device for the osteoporotic fracture, stable fixation is provided for the osteoporotic fracture part through the tightening mechanism, the loosening problem caused by infirm fixation is avoided, fracture healing is facilitated, the ratchet wheel is installed on the outer ring of the rotating shaft to be matched with the pawl, and the fixing stability is further guaranteed; the fixing effect is prevented from being affected by loosening of the lacing rope caused by reverse rotation of the rotating shaft, the fracture position of the leg of a patient can be conveniently installed and fixed through the installation mechanism when the leg of the patient is fractured and the leg is inconvenient to lift, operation of medical staff is facilitated, and through cooperative use of a ratchet wheel and a pawl, the fixing stability is guaranteed, and meanwhile the fixing effect is improved. And the fixing device can be conveniently and quickly loosened in emergency, so that the safety of the patient is guaranteed.

The utility model provides a controllable micro-motion elastic internal fixation device with a bidirectional locking pressing plate structure, and belongs to the technical field of orthopedic medical instruments. Comprising a plurality of bridging rods; and the two end blocks are arranged at the two ends of the bridging rod. A stable frame structure is constructed through the combination of the bridging rod, the end block and the fixing screw, a fracture part is effectively connected and fixed in the axial direction, then a bidirectional locking mechanism is formed through the upper pressing plate, the lower pressing plate, the adjusting lead screw and the locknut, and the fracture part is locked by screwing the locknut. The distance and pressure between the pressing plates can be accurately adjusted and locked, dynamic force generated by factors such as muscle contraction and limb movement can be effectively resisted in the long-term use process, the pressing plates are prevented from loosening or displacing, and it is ensured that the fixing device always keeps the stable fixing effect; and the problems of poor fracture healing or malformation healing and the like caused by fixation failure are avoided.

Disclosed herein is a method for manufacturing a composition promoting recovery from a bone fracture, the method including preparing a mixture of Angelica gigas, Cnidium officinale, Phlomis umbrosa, Astragalus membranceus, Amomi fructus, Citri unshius pericarpium, Drynariae Rhizoma, Codonopsis Pilosulae Radix, frankincense, and myrrh, aging the mixture, smoking the mixture, drying the mixture and grinding the dried mixture into a powder, and extracting a liquid from the powder.

This application provides a method, system, device, and computer-readable storage medium for planning the healing of spinal compression fractures based on multimodal three-dimensional medical images. The method includes: acquiring spinal CT and MR images of the patient; identifying and segmenting the spinal CT and MR images to obtain CT and MR images of the fractured vertebral body at the site of the compression fracture; inputting the CT and MR images of the fractured vertebral body into a preset bone cement anti-leakage planning model to output a bone cement injection anti-leakage planning scheme; wherein the bone cement injection anti-leakage planning scheme includes at least: the viscosity of the bone cement, the injection volume, the injection location, the injection timing, and the injection rate. According to the embodiments of this application, bone cement injection anti-leakage planning can be performed quickly and accurately.

This invention discloses a piezoelectric sensing adaptive internal pressure fixation bone plate system for treating tibial plateau fractures, belonging to the field of orthopedic implantable medical devices. It includes a bone plate, pressure bolts, and an external control module. The bone plate is available in three specifications according to the Schatzker classification: lateral L-type, medial T-type, and bilateral composite type, with transverse internal pressure holes. The pressure bolts embed a PZT-5H piezoelectric sensing device and have an overload-resistant groove between the head and neck, enabling real-time acquisition of the compressive stress at the bolt-bone interface. The external control module transmits signals wirelessly via Bluetooth 5.0 and uses a PID algorithm to non-contactly drive the bolts via magnetic field coupling to adaptively adjust the compressive stress to 30–50 MPa. The system has two levels of safety protection: 55 MPa coil power-off protection and 80 MPa groove breakage protection. This system eliminates the need for secondary surgery, dynamically maintains optimal stress throughout the fracture healing cycle, with a healing time ≤12.5 weeks, a complication rate ≤4%, and an excellent / good knee HSS score rate ≥88%. It is suitable for Schatzker type I-VI tibial plateau fractures.

The utility model discloses an injectable femoral neck hollow nail device, and relates to the technical field of hollow nail devices, the injectable femoral neck hollow nail device comprises a hollow nail main body, the surface of the hollow nail main body is provided with an external thread, the external thread can pass through a femoral neck fracture line, and a sleeve is arranged in the hollow nail main body. The hollow nail main body can penetrate through a femoral neck fracture line through the external threads, so that pressure can be applied to a fracture end during fracture fixation, a fracture part can be promoted to be tightly attached, micro movement of the fracture end is reduced, a stable environment is created for fracture healing, and growth and healing of callus at the fracture part are facilitated; meanwhile, when the fracture position of the patient is fixed through the hollow nail body, the strength of the hollow nail body can be improved through the sleeve, red marrow and the like can be conveyed through the sleeve, fracture healing is facilitated to be promoted or accelerated, and the risk of internal fixation failure is reduced.

The invention relates to a single-arm orthopedic external fixing and supporting device and an adjusting method thereof, belongs to the technical field of traction equipment, and solves the technical problem of rapid growth of bone tissue in the later stage of fracture healing The single-arm orthopedic external fixing and supporting device comprises a fixing pressurization module, a fine adjustment pressurization assembly and a universal spherical hinge module which are fixedly arranged on corresponding sliding bases respectively, the fixed pressurization module and the universal spherical hinge module are movably connected through the movable connection module, and the fine adjustment pressurization assembly accurately adjusts the distance between the fixed pressurization module and the universal spherical hinge module. According to the device, firm fixation and bone tissue passive stress stimulation are realized in the early stage of bone healing, and the basic functions of a conventional single-arm orthopedic external fixation support frame are met; in the later stage of fracture healing (unscrewing a locking bolt), the fixing and pressurizing module and the universal spherical hinge module can slide back and forth relative to the movable connecting module, stress stimulation of the fixing and pressurizing module and the universal spherical hinge module is stably achieved, bone tissue healing is promoted, and the fracture healing period is shortened.

Devices, systems, and methods for promoting healing and stability for bone fractures. The bone stabilization system may include a variety trauma and / or reconstruction plates and one or more bone fasteners configured to secure the plate to bone. The bone plates may be used for the fixation of fractures and fragments in forefoot, midfoot, and hindfoot applications. The foot fracture plating may be used to create a rigid construct with permanent fixation to promote primary healing and stability.

The invention discloses an axial micro-motion and rigid locking dual-mode switchable fracture external fixation support, and relates to the technical field of orthopedic medical instruments, and the key points of the technical scheme are that the fracture external fixation support comprises two bone needle assemblies; the outer sleeve is connected with one bone needle assembly; the telescopic inner core rod is connected with the other bone needle assembly and is sleeved in the outer sleeve in an axial sliding manner; the elastic buffering assembly is arranged between the outer sleeve and the telescopic inner core rod; the mode switching assembly is arranged on the telescopic inner core rod and can be operably connected with or separated from the outer sleeve; when the mode switching assembly is separated from the outer sleeve, the telescopic inner core rod can axially slide relative to the outer sleeve and act on the elastic buffering assembly. When the mode switching assembly is connected with the outer sleeve, the telescopic inner core rod is rigidly connected with the outer sleeve through the mode switching assembly. Fixing modes can be conveniently switched according to different stages of fracture healing, secondary operation is not needed, and the fracture healing environment is optimized.

The present application relates to an intramedullary nail system with an adjustable electromagnetic healing-promoting function, the intramedullary nail system comprising a main nail, a fixing hole provided at the tail end of the main nail, an electromagnetic device fixed in the fixing hole on the main nail, the electromagnetic device having an adjustment device, the adjustment device adjusting the magnetic field parameters of the electromagnetic device through mechanical adjustment according to the distance between the fracture location and the electromagnetic device; the electromagnetic device can generate a pulsed magnetic field to promote fracture healing. The intramedullary nail system with an adjustable electromagnetic healing-promoting function of the present invention reduces the distance between the electromagnetic device and the fracture / healing location by fixing the electromagnetic device on the main nail, and establishes a one-to-one correspondence between the distance and the magnetic field strength generated by the electromagnetic device, making the application of the device universal and simplifying the operation and adjustment.

The utility model relates to the field of medical instruments, in particular to an external fixing device with a micro-motion assembly and a hydroxyapatite coating fixing nail, which comprises a support, three clamping block assemblies and the micro-motion assembly. The three clamping block assemblies are used for clamping at least one hydroxyapatite coating fixing nail respectively, the micro-motion assembly is configured to output kinetic energy to the second assembly when receiving electric energy, and when the second assembly is in a movable state relative to the support, the micro-motion assembly is used for driving the second assembly to move according to a preset path. The preset path is a swing path and / or a linear path. The broken bone is actively driven through the micro-motion assembly, the second assembly and the hydroxyapatite coating fixing nail clamped on the second assembly, so that the broken bone driven by the second assembly and the hydroxyapatite coating fixing nail clamped on the second assembly can generate fine displacement, and the broken end of the driven broken bone can form stress stimulation, so that the broken bone can be driven to move stably and stably. The fracture healing time is shortened, and the fracture healing treatment efficiency is high.

The invention discloses a method and a system for determining the elastic modulus of an internal fixation block for fracture, and relates to the field of medical instruments, and the method comprises the following steps: building a parameterized biomechanical model, extracting features from the parameterized biomechanical model, and selecting the elastic modulus of the internal fixation block based on a gradient boosting decision tree model. An artificial intelligence algorithm combined with pathological state correction is used for accurately determining the elastic modulus required by the fracture internal fixation block, and the elastic modulus is creatively fused into the physiological state index of a patient to dynamically adjust the weight coefficient. Objective customization of personalized elastic modulus is achieved, it is ensured that the internal fixing block is highly matched with the bone mechanical property of a patient, stress conduction and distribution of a bone fixing interface are effectively optimized, the stress shielding risk is reduced to the maximum extent, fracture healing quality and speed are remarkably improved, complications are reduced, and fixing stability and long-term curative effect are improved. The system is a key breakthrough for intelligent and precise orthopaedic treatment.

The utility model discloses an orthopedic internal fixation steel plate system, and relates to the technical field of medical instruments. The two opposite sides of the steel plate in the thickness direction are provided with a first surface and a second surface capable of making contact with a backbone, the multiple protrusions are arranged on the first surface at intervals in the length direction of the steel plate, and the two opposite ends of the steel plate in the length direction are provided with through holes penetrating in the thickness direction of the steel plate. One end of each limiting piece is provided with a clamping part, the other end of each limiting piece is provided with an insertion part capable of penetrating through the diaphysis cortex, the limiting pieces are in one-to-one correspondence with the through holes and penetrate through the through holes, and the clamping parts are located on the sides, close to the first surface, of the through holes and can be clamped to the steel plate; a plurality of hoop assemblies are arranged corresponding to the convex parts and the clamping parts, in each hoop assembly, a first half-ring hoop and a second half-ring hoop are detachably connected and form a surrounding area capable of surrounding the steel plate and the backbone, and the inner side face of each first half-ring hoop is provided with a groove capable of being connected with the corresponding convex part or the corresponding clamping part in a matched mode. No screw is needed for fixation, bone injury is reduced, and the fracture healing effect is improved.

The invention discloses a two-way fracture internal fixing device, and relates to the technical field of medical instruments, the two-way fracture internal fixing device comprises a fixing plate and fixing nails, the fixing plate is attached to the surface of a broken bone in the axial direction of the broken bone, two sets of fixing nails are arranged on the fixing plate, each set of fixing nails is connected with one broken bone, and a micro-motion gap is formed in the middle of the fixing plate; the micro-motion gap corresponds to the joint of the two broken bones, and the micro-motion gap enables the fixing plate to generate micro-motion deformation. The fixing plate can achieve variable rigidity in a micro-motion gap, then gap micro-motion adjustment at the joint of two broken bones is achieved, rigid fixation is converted into biological adaptation, anatomical structure adaptation and mechanical healing rule adaptation are achieved, enough micro-motion stimulation can be generated, the fracture healing cycle is met, bone reconstruction and development are promoted, and the fracture healing effect is improved. The structure is simple and exquisite, and carrying is convenient.

The utility model relates to a kind of bone fracture prevention screw, it is related to medical instrument technical field, including screw body and anti-off component, the screw body includes tension head end and anti-off tail end, the surface of tension head end and anti-off tail end is provided with outer thread, the anti-off component is hollow structure, and cavity is formed inside, and the inner surface of cavity is provided with internal thread, and is fixed with anti-off tail end thread connection, bone fracture prevention screw is embedded in bone and is fixed to fracture site. The utility model can make fracture end close contact to the bidirectional sustained pressure of fracture site, improve local blood circulation, provide better mechanical environment for fracture healing, accelerate fracture healing process, reduce the risk of screw loosening, withdrawal and fracture displacement, improve the stability of internal fixation.

The utility model discloses a thighbone inner side supporting frame, and relates to the technical field of medical instruments, the thighbone inner side supporting frame comprises a supporting frame main body, the supporting frame main body comprises a fixing part and a first body which are connected in a bending mode, and the fixing part is used for being fixedly connected with a thighbone; the second body is arranged on the first body, and the second body can slide in the extending direction of the supporting frame body. The second body is arranged and can slide in the extending direction of the supporting frame main body, so that the femoral head can be finely adjusted to a proper position along with the screw and the second body, the wound gap of the femur is reduced, and recovery of the femur is facilitated; the shear stress of the supporting frame body to the femur can be converted into favorable pressure stress, the stability of combined fixing of the supporting frame body and the hollow compression screw is improved, the failure risk of the hollow compression screw in the fracture healing process is reduced, and then the risk that the femoral neck fracture is difficult to heal is reduced.

The invention discloses a micro-movement fracture internal fixation instrument, and relates to the technical field of medical instruments. The instrument comprises a first strip plate and a second strip plate which can be in sliding fit in the long axis direction of a bone. Each strip plate is locked to the corresponding bone block through a screw with a degradable coating, and the outer diameter of the coating is not smaller than the inner diameter of a plate hole in the initial stage of implantation, so that initial rigid fixation is achieved. The two long strip plates are further fixed to the bone blocks on the opposite sides through middle screws. After implantation, along with gradual degradation of the coating, a gap is generated between the screw and a plate hole, and rigid locking is relieved, so that the two plates can generate controllable relative micro motion along the long axis direction of the bone under physiological load. According to the design, the stability in the early stage of fracture healing is guaranteed, beneficial axial mechanical stimulation can be provided in the middle and later stages, callus formation and fracture healing are effectively promoted, and meanwhile the adverse effect of non-axial micro motion is avoided.

This invention provides a method for modeling a fracture healing model under the influence of macrophages. The steps are as follows: Step 1: Establish a mathematical model of fracture healing based on the ordinary differential equation of fracture healing; Step 2: Establish a fracture healing model under the influence of macrophages based on the regulatory effects of macrophages and their secreted cytokines on bone tissue cells. This invention provides a mathematical description of the complex process of fracture healing based on the interaction between the immune system and bone tissue cells in the human body, and has theoretical guiding significance for studying the mechanism of fracture healing and treating fractures.

The application provides a digital twin method and system for realizing bone growth, which is suitable for the technical field of digital twin of orthopedics. The method comprises the following steps: acquiring two-dimensional tomographic image data of a fracture site, establishing a three-dimensional surface geometric model of the fracture site, and forming a finite element model of the fracture site; based on the finite element model, assembling a solid mechanics, pore seepage and biological reaction coupled solver, and performing multi-physical field coupled solving; periodically acquiring follow-up image data of bone fracture healing, realizing online data assimilation of modulus, and outputting a rehabilitation load scheme; the application uses variational assimilation based on maximum a posteriori estimation to fuse the observation modulus field generated by the follow-up image and the simulation result, realizes continuous convergence of the model and the real state, and on this basis, real-time batch calculation of different load parameter combinations is realized, and the rehabilitation load scheme meeting the safety constraint and the optimal healing speed is output.

Provided herein are medical devices and methods for treating bone fractures. The medical device comprises a body, a scaffold within the body, and a means for focusing bone growth throughout the body. The device is designed to minimize shear stresses on a distal tip and distribute micromotion to encourage bony ingrowth. The scaffold may include a triply periodic minimal surface (TPMS) with a cubic repeating pattern defining walls within the scaffold, and the TPMS may be helically wrapped around a central axis of the device. The device may also house biologic agents and accommodate an autologous product. In some embodiments, the medical device is a bone screw or a pedicle screw, designed to reduce common issues such as screw loosening, screw backout, and rod breakage. The method of treatment involves implanting the medical device into a patient's bone to aid fracture healing.

The present invention relates to the field of trauma orthopedics, and more specifically, to an ultra-fine medullary needle and plate locking system. The ultra-fine medullary needle and plate locking system includes an intramedullary needle, an extramedullary plate, and a plurality of locking screws; the intramedullary needle and the extramedullary plate are both arranged along the extension direction of the bone body, the intramedullary needle is accommodated in the medullary cavity of the bone body, and the extramedullary plate is located outside the bone body and is connected to one end of the intramedullary needle; the extramedullary plate is provided with a plurality of screw mounting holes along its extension direction; each locking screw is matched with a screw mounting hole and is connected to the bone body. The ultra-fine medullary needle and plate locking system can improve the stability of the bone body where the fracture occurs, thereby improving the fracture healing effect, and is conducive to the reduction and healing of the fracture; and after the fracture is healed, it can improve the efficiency of removal, thereby shortening the operation time.

This invention provides an orthopedic screw for fracture healing detection, belonging to the field of orthopedic screw technology. It includes a screw body with a threaded body fixedly connected to it. The threaded body has a groove at its bottom, and an inner core is installed inside the screw body. A second slot with a shape adapted to the inner core is also provided within the screw body. A connecting mechanism is also included to quickly connect the screw body and the steel wire used during surgery. This invention, by incorporating the connecting mechanism, effectively reduces the risk of a broken screw migrating within the body and puncturing internal organs. Furthermore, the connecting mechanism enables a rapid and stable connection between the screw body and the steel wire used to aid fracture healing. This allows the steel wire to tighten the screw body and apply tension, resulting in better fixation of the screw body at the fracture site. The coordinated use of these structures simplifies the connection operation between the screw body and the steel wire.

The invention provides a bonesetting pill for treating bone injury, and relates to the technical field of traditional Chinese medicines. The bonesetting pill for treating bone fracture is prepared from Chinese angelica, poria, Chinese yam, pseudo-ginseng, lotus seed, ground beetle, elecampane, dragon's blood, prepared rehmannia root, safflower, prepared nutgrass galingale rhizome, drynaria rhizome, immature bitter orange, rhizoma dioscoreae nipponicae, paris polyphylla, natural copper processed with vinegar, prepared frankincense, prepared myrrh, ajuga paniculata, cortex moutan, liquorice and borneol. The bone setting pill has the main effects of dissipating blood stasis and stopping bleeding, relieving swelling and pain, promoting reunion of fractured bones and promoting fracture healing, and can effectively treat various fractures, dislocation, traumatic injuries, joint sprain, soft tissue contusion, blood stasis, swelling and pain and the like.

A single-arm orthopedic external fixation support device and its adjusting method belong to the technical field of traction equipment and solve the technical problem of rapid growth of bone tissue in the late fracture healing period. The device comprises a fixed pressurizing module, a fine-tuning pressurizing assembly and a universal ball hinge module fixedly arranged on corresponding sliding bases respectively. The fixed pressurizing module and the universal ball hinge module are movably connected through a movable connecting module. The fine-tuning pressurizing assembly accurately adjusts the distance between the fixed pressurizing module and the universal ball hinge module. The device realizes strong fixation in the early stage of bone healing, and the bone tissue is stimulated passively to meet the basic functions of a conventional single-arm orthopedic external fixation support frame. In the late fracture healing period (loosen the locking bolt), the fixed pressurizing module and the universal ball hinge module can reciprocally slide relative to the movable connecting module to realize stable stress stimulation and promote bone tissue healing, thereby shortening the fracture healing period.

The utility model provides a portable orthopedic nursing crutch, which belongs to the field of medical equipment and comprises an upper rod body and a lower rod body, the upper rod body and the lower rod body are fixedly connected with each other, an arm supporting mechanism is arranged on the upper rod body, and an auxiliary supporting component is arranged at the bottom of the lower rod body. The walking stick can effectively share the weight of the lower limbs of a user, in the fracture healing period or after a joint operation, the walking stick can help a patient keep the stability of the affected limbs, fracture displacement or joint injury caused by movement is reduced, the rehabilitation process is promoted, the contact area between the walking stick and the ground can be remarkably enlarged, and the rehabilitation effect is improved. Particularly, when the crutch is on the uneven ground or the walking speed is high, the crutch can be effectively prevented from rolling over or slipping, the risk that a user falls down is reduced, the weight borne by the crutch can be dispersed, and the crutch is more stable when supporting the weight of the user.

This invention provides a pharmaceutical composition for promoting fracture healing, its preparation method, and its application. The composition, by weight, comprises 25-50 parts of an active core component, 8-25 parts of an osteogenic synergistic bioactive component, 3-15 parts of a bone-targeting transdermal penetration enhancer, and 5-15 parts of a moisturizing dispersant. The active core component is based on bone-healing traditional Chinese medicines such as calcined natural copper nanoparticles and Eupolyphaga sinensis polypeptides. The osteogenic synergistic component is based on collagen peptides of specific molecular weights and graded sodium hyaluronate. The bone-targeting transdermal penetration enhancer is a compound of eugenol and limonene. This invention utilizes a three-dimensional synergistic formulation structure and a phase-separated low-temperature preparation process, overcoming the shortcomings of traditional topical medications, such as poor transdermal targeting, weak efficacy, easy inactivation, and low safety. It can achieve targeted enrichment at fracture ends, synergistically promoting fracture healing throughout its entire life cycle, and simultaneously repairing bone and soft tissue. It is suitable for promoting the repair of various fractures and possesses extremely high clinical value and promising prospects for widespread application.