91 results about "Fibula bone" patented technology

Ankle prosthesis apparatuses, systems and methods are provided as disclosed herein. Additionally, systems and methods for bone resection and implantation of prosthetics are provided, including surgical techniques and related instrumentation. An ankle prosthesis apparatus can include a talar component having a lower surface with a bone fixation portion for fixation to a talus bone and an upper surface designed for articulation with a bearing component. The bearing component can have a lower surface for articulation with the talar component and an upper surface for articulation with a tibial component. The tibial component can have a lower surface for articulation with the bearing component and an upper surface with a bone fixation portion for fixation to a tibia bone and/or a fibula bone. The bearing component can have a protrusion on its upper surface adapted for engagement with a recess on the tibial component to allow desired rotational and translational movement. Methods and systems can be used to prepare a bone surface for implantation of a prosthesis including determining a location for a curved cut line on the bone surface and drilling a series of holes tangent to the curved cut line to create a curved bone resection surface. Methods and systems can be used for the implantation of an ankle joint prosthesis including the use of an alignment guide, tibia and talus drill guides, tibia and talus saw guides, and tibia and talus broach guides, all components of which can be placed on and removed from a plurality of alignment anchor pins throughout the implantation procedure. A method for medially to laterally implanting an ankle joint prosthesis can include exposing tibia and talus bones from the medial side, resection of the tibia and talus bones, broaching the tibia and talus bones, and positioning and affixing the ankle joint prosthesis components.

The invention discloses a manufacturing method for a fibular flap repairing mandible defect operation guiding template. The manufacturing method for the fibular flap repairing mandible defect operation guiding template comprises the steps that a mandible three-dimensional model and a fibula three-dimensional model are rebuilt, a lesion area is determined, and the target fibula is determined; the lesion area is excised, and a jaw non-lesion area model and a lesion area model are saved; the inner surface of a jaw cutting locating guiding template is attached to the outer surface of the lesion area model; the area where the fibula three-dimensional model and fibula subsection models are placed is partitioned to form a fibula repairing area; the inner surface of a fibula molding guiding template is entirely attached to the cheek side surface of the fibula repairing area; the inner surface of a fibula cutting locating guiding template is entirely attached to the outer surface of the corresponding fibula subsection model; the jaw cutting locating guiding template, the fibula molding guiding template and the fibula cutting locating guiding template are molded. The fibular flap repairing mandible defect operation guiding template and the manufacturing method have the advantages that the bone cutting scheme of the fibula and the molding position of each section of the fibula can be accurately controlled, the precise implement of a fibular flap transplanting repairing mandible defect operation is guaranteed, the operation time is shortened for the fibular flap repairing mandible defect operation.

A semi-constrained polyaxial ankle joint replacement implant has a dual bearing component, a tibial component or plate adapted for attachment to a tibia or fibula bone, and a talar component or plate adapted for attachment to a talus or calceneus bone of the foot. The dual bearing component includes a superior bearing providing gliding articulation/translation between it and the tibial component, and an inferior bearing providing gliding articulation/translation between it and the talar component. The tibial plate has peripheral transversely extending flanges that semi constrain or limit movement relative to the superior bearing and/or vice versa. The inferior bearing has a flange extending upwardly from the superior surface thereof that is received in an opening in the intermediate plate to semi constrain or limit movement relative between the two components.

A system for syndesmosis repair includes a flat band secured to bone by pulling a metal button through both the tibial and fibula bones, which button is then toggled into position to create tension, along the band, across the two bone segments to be fixated. Once the button is secure against the bone, flat suture tails against the lock at the initial insertion site serves to tension the band and bone segments in place. The system band offers syndesmosis repair with a knotless closure. The system is designed to provide this stabilized fixation for bone fractures, osteotomies, and arthrodesis, plus soft tissue to bone attachment, if desired. It is designed to apply a restorative fixation force across the tissue segments to stabilize them. The band's rigidity and compliant nature provides consistent and rigid fixation during the healing phase.

A manufacturing method of a fibula positioning and shaping assisting device comprises the steps that a jaw surface bone model and a fibula model are reconstructed; the parts in need of cutting and cutting paths are determined; cutting is simulated to find out a most suitable backup fibula section model; positioning and shaping guide plate models are obtained; a model of the fibula positioning and shaping assisting device is obtained and the fibula positioning and shaping assisting device is manufactured. The fibula positioning and shaping assisting device manufactured through the manufacturing method of the fibula positioning and shaping assisting device is formed by connecting a plurality of positioning and shaping guide plates, the inner surface of each positioning and shaping guide plate is completely attached with the outer surface of a corresponding fibula section, and a track formed by fixing the adjacent positioning and shaping guide plates end to end according to the break angle is uniform with the installation track of the set fibula on the maxillofacial skeleton. By means of the fibula positioning and shaping assisting device, the cut fibular can be accurately installed into the jaw surface bone according to the ideal operative plan, and the operation effect is guaranteed.

The invention relates to the technical field of auxiliary instruments, in particular to a middle and distal tibia tumor type prosthesis and a preparation device and method thereof. The preparation device comprises an image acquisition system for collecting tibia image data and a 3D printing system for printing a prosthesis model. The bilateral tibiofibula CT scanning is performed before an operation, the 3D tibiofibula of the affected side is reconstructed by reverse software, and the undercut range is expected corresponding to the tibia malignant tumor to make a middle and distal tibia tumortype prosthesis image to obtain intuitive understanding of the diseased tibia. The intraoperative prosthesis handle portion and the ankle mortise are compressed tightly with the host proximal tibia and the proximal talus osteotomy side, and fixed with multiple screws to complete the initial stabilization of the connection between two ends of the prosthesis and the host bone tissue. The porous surface of the proximal end of the prosthesis handle portion and the metal ankle mortise (a cavity at the ankle bone end) can promote the bone ingrowth, and the long-term postoperative stability is strengthened.

The invention discloses an osteophyte recognition method and device, electronic equipment and a storage medium. The osteophyte recognition method comprises the following steps: acquiring a medical image; inputting the medical image into a trained first segmentation model to obtain a femur region and/or a tibia region and/or a fibula region and/or a patella region in the medical image; and inputting the femur region and/or the tibia region and/or the fibula region and/or the patella region into a trained second segmentation model to obtain a femur osteophyte and/or a tibia osteophyte and/or a fibula osteophyte and/or a patella osteophyte. Accordingly, the osteophyte can be quickly, accurately and intelligently identified by utilizing the first segmentation model and the second segmentation model. Doctors can be assisted in surgical planning, operation is easy, accuracy is high, and individual differences of patients can be met, and meanwhile, the accuracy of follow-up surgeries can be improved and a large amount of time can be saved for orthopedists by perfecting basis data of preoperative planning and guiding surgical planning and prosthesis selection.

The invention provides a precise osteotomy guider. The precise osteotomy guider comprises a frame, a positioning structure, a first position determining part, a guide structure and a second position determining part, wherein the frame is provided with a main rod, a first supporting rod capable of sleeving the main rod in a sliding manner and a second supporting rod fixedly connected with one end of the main rod, and the first supporting rod and the second supporting rod are parallel and form a U-shaped structure together with the main rod; the positioning structure is arranged on the first supporting rod and is suitable for being positioned on one side of the fibula; the first position determining part is mounted on the first supporting rod and used for determining the distance between thecenter of the positioning structure and the tibial plateau; the guide structure is arranged on the second support rod and used for guiding the nailing direction of a Kirschner wire to face the centerof the positioning structure; and the second position determining part is mounted on the second supporting rod and used for determining the distance between the center of a guide hole, used for guiding the Kirschner wire, of the guide structure and the tibial plateau. According to the precise osteotomy guider, the osteotomy positions of the outer side and the inner side of the tibial plateau canbe precisely given, it can be guaranteed that the wire inserting direction of the Kirschner wire is accurate, deflection is reduced or avoided, and the osteotomy efficiency is improved.

The invention discloses a fibula shaping board for use in mandibular reconstruction, which comprises an arc-shaped groove and a regulating screw, wherein the regulating screw passes through the front side face of the arc-shaped groove; the end, which extends out of the front side face of the arc-shaped groove, of the regulating screw is provided with a bracket; the arc-shaped groove has three osteotomy slots, and the sizes and positions of the three osteotomy slots are prescribed in the description; the middle slot is a chin angle osteotomy slot, and the size of a chin angle is 55 to 65 degrees; the slots at the two ends are mandible angle osteotomy slots, and the size of an mandible angle is 35 to 45 degrees and the distance between a front side face and a rear side face is 2.5 to 3.5 centimeters. Through morphological analysis on the mandible of common adults, an intrinsic common law is found, and the shaping parameters of the horizontal part of the mandible are determined; on the basis of the parameters, common fibula shaping plate is designed; and thus, the four-section shaping of a transplanted fibula in the reconstruction of the horizontal part of the mandible can be realized.

The invention discloses an internal fixation fibula reconstruction mandible method. The method comprises the following steps: acquiring iconography data of a jaw and a fibula at a target position; establishing a three-dimensional data model; performing mandible focus excision through virtual design, and determining a fibula osteotomy scheme; designing and manufacturing a fibula far-end bone fracture plate and an intramedullary fixing device; implanting the internal fixing device into a fibula marrow cavity, and connecting the fibula section with the internal fixing device. According to the internally-fixed fibula reconstruction lower jawbone method, personalized intramedullary fixation is adopted according to the osteotomy scheme and the shape and the diameter of the marrow cavity, so thatlower jawbone reconstruction is more accurate, and wounds caused by a secondary operation are reduced.

The invention provides a tibia far-end ankle joint prosthesis. The tibia far-end ankle joint prosthesis comprises a medullary cavity extension handle, a far-end ankle joint and a backbone extension section, wherein the backbone extension section is mounted between the medullary cavity extension handle and the far-end ankle joint, the medullary cavity extension handle is connected with a medullarycavity at the near end of a tibia, and a 3D printing bone trabecula structure is arranged on the contact surface of the far-end ankle joint, talus and fibula. A locking nail is inserted into the nailhole of the far-end ankle joint to be connected with the talus and the fibula, so that the far-end ankle joint is fixedly connected with the talus and the fibula. The tibia far-end ankle joint prosthesis is suitable for ankle joint prosthesis replacement of a tibia far-end tumor excision patient, the 3D printing bone trabecula structure can effectively promote bone ingrowth, the prosthesis is morestable in combination with a locking nail, and the ankle joint prosthesis is high in initial bone ingrowth speed and good in medium and long term stability; And when the tibia far-end ankle joint prosthesis is used, the whole tibia does not need to be replaced, the intact tibia is reserved, only the tibia with a focus is replaced, the length of the prosthesis is suitable for each patient due to the arrangement of the backbone extension section, and the manufacturing cost is reduced.

The invention relates to an assembled tumor type artificial tibiotalar joint prosthesis. The assembled tumor type artificial tibiotalar joint prosthesis comprises a tibia assembly, a talus assembly and a tibiotalar hinge type connecting assembly, wherein the tibia assembly is connected with the human tibia; the talus assembly is mainly composed of a talus base, a talus connecting column and a locking screw; the talus base is of a shell type structure matched with the surface shape of the talus; the talus connecting column is integrally formed on the lower portion of the talus base and extendsdownwards along the vertical axis; the locking screw penetrates through the talus base, the talus connecting column and the human talus along the coronal axis; and the tibiotalar hinge type connectingassembly is rotationally connected between the tibia assembly and the talus assembly, so that the tibia assembly and the talus assembly can relatively rotate in a sagittal plane, and the plantar flexion and dorsal extension functions of the tibiotalar joint are recovered. The prosthesis can be widely applied to bone defect reconstruction of limb continuity interruption after tumor resection underthe condition that the far end of the tibia or the far end of the fibula seriously affects the tibia, the purpose of limb structure recovery can be achieved, meanwhile, perfect combination of immediate stability and long-term stability of the tibiotalar joint is achieved, and therefore the long-term tibiotalar joint function of a patient is remarkably improved.

The invention discloses a cuttable fibula reconstruction jaw defect model and a manufacturing method and application thereof. The model comprises a jaw defect model body and a fibula model body, the manufacturing method comprises the following steps: constructing a complete jaw simulation model and fibula simulation model by utilizing CT scanning and medical software; designing a fibula section which is most suitable for reconstructing the diseased jawbone through a reconstruction and simulated excision method; and printing the jaw defect model body and the fibula model body through a 3D printing technology. The application comprises the following steps: manufacturing a fibula osteotomy reconstruction composite guide plate required for fibula cutting by utilizing the cuttable fibula reconstruction jaw defect model; according to the invention, the fibula can be cut more accurately, so that the reconstructed jaw can better recover the facial appearance of a patient, thus accurately adapting to the alveolar ridge of the jaw and better repairing the false tooth after an operation; the osteotomy reconstruction composite guide plate can overcome the defect of secondary punching on the fibula, and the operation precision is improved.

The invention provides a fibula transverse bone carrying external fixing frame device which comprises a fibula carrying device, a tibia fixing device and a connecting device, the fibula carrying device drives a fibula carrying frame to move synchronously through movement of an adjusting device, position deviation of bone blocks of a fibula osteotomy section is achieved, the tibia fixing device comprises a tibia fixing frame and a deviation rectifying adjusting device, the deviation rectifying adjusting device can adjust the fixing positions of the tibia fixing frame and the connecting device, and the fibula carrying device and the tibia fixing device are connected through the connecting device. The invention further provides a using method of the fibula transverse bone carrying external fixing frame device. Only the fixing fulcrum is arranged on the tibia; the number of wounds on the tibia side is reduced; the bearing capacity of the tibia after operation is not affected, meanwhile; bone carrying operation is conducted on the fibula side; transverse fibula carrying is achieved; the fibula is located in the deep layer of skin fascia; muscle groups in front of and behind the fibula are wrapped; and a richer capillary basis is provided for bone carrying at the fibula end; and the blood supply repairing effect is better.

The invention relates to a combined tibiofibular embracing fixator which comprises a fibula embracing body, fibula embracing arms and tibia embracing drawing hooks, wherein the fibula embracing arms and the tibia embracing drawing hooks are integrated into a whole; the fibula embracing body is provided with the fibula embracing arms and the tibia embracing drawing hooks; the tibia embracing drawing hooks are positioned among the fibula embracing arms; and both sides of each group of fibula embracing arms and both sides of each tibia embracing drawing hook are provided with antiskid ratchets. The combined tibiofibular embracing fixator has the advantages of simple technological shape and reasonable structure, and is favorable for reducing the operation of manually damaging bones in an operation; and the combined tibiofibular embracing fixator is convenient in utilization in the operation and is firmly and reliably fixed. After the combined tibiofibular embracing fixator is installed, not only fibula fracture can be treated, but also distal tibiofibular separation puzzled by clinical doctors can be treated. The combined tibiofibular embracing fixator of the invention has excellent application value and application prospect; a satisfactory curative effect can be obtained by reasonable application; and compared with operations for treating ankle fracture combined with distal tibiofibular joint separation and the like by using absorbable screws, the combined tibiofibular embracing fixator is more favorable for improving the living quality of patients to a certain degree and has excellent economic and social benefits.

The invention relates to the technical field of medical equipment, in particular to a pincer-type lower tibiofibular syndesmosis stability detector. The detector comprises a fibula holding assembly, apushing and mechanics measuring assembly, and a separation distance measuring assembly, wherein the fibula holding assembly comprises handles, connecting parts and clamping pipes, the handles are connected with the clamping pipes through the connecting parts, the clamping pipes are arranged in a hollow structure, and the clamping pipes are movably connected by a connecting mechanism to form a pincer-shaped structure, the pushing and mechanics measuring assembly comprises a force measuring cylinder, a piston rod and a spring, a pressure scale is arranged on the side wall of the force measuringcylinder, the separation distance measuring assembly comprises measuring rods, the measuring rods pass through the clamping pipes, and a ruler is arranged on each measuring rod. The detector enablesthe detection and diagnosis of the lower tibiofibular syndesmosis stability to be based on evidence, and enables a received-force size and separation distance of the lower tibiofibular syndesmosis tobe observed directly and concretely, so that the objectivity and accuracy of the lower tibiofibular syndesmosis stability detection are significantly improved.

The invention discloses a distal tibiofibular bionic fixing system which comprises a fixing mechanism at the fibula end, a bolt, a fastening rope and a locking nut on the tibia side, the fastening rope is connected between the fixing mechanism and the bolt, the locking nut is connected to the bolt in a threaded mode, a plurality of breaking grooves which are arranged along the axis of the bolt at intervals and are of an annular structure are formed in the periphery of the bolt in a concave mode, the breaking grooves can be broken in different positions as needed, and the broken end is not too long to stimulate the skin and not too short to loosen the nut, so that one system can adapt to different patients, the cost is reduced, and the treatment effect is improved.

The invention discloses a mountable fibula reconstruction and jawbone defect model, and a manufacturing method and application thereof. The model comprises jawbone defect model bodies and fibula modelbodies. The manufacturing method comprises the following steps: constructing a complete jawbone simulation model and a fibula simulation model by using computed tomography (CT) scanning and a medicalsoftware; then designing a fibula section which is most suitable for reconstructing a pathological jaw through a reconstruction and cutting simulation method; adjusting a rotation angle; printing jawbone defect model bodies and fibula model bodies through a 3D printing technology; and finally, performing assembling through connecting bulges and connecting grooves on the jawbone defect model bodies and the fibula model bodies. The application comprises manufacturing a fibula osteotomy reconstruction composite guide plate required for fibula cutting by using the model provided by the invention.According to the invention, a fibula can be more accurately cut, so that a reconstructed jawbone can better recover facial appearance of a patient and can accurately adapt to jaw alveolar ridges, anddenture repair can be better performed after the operation. The osteotomy reconstruction composite guide plate can overcome the defect of secondary perforation on a fibula and can improve operation precision.

The invention relates to a knee joint CT image automatic segmentation method and apparatus, and an electronic device. The method comprises the steps of obtaining a knee joint original image; processing the original knee joint image according to a preset image processing rule to obtain a target image, wherein the target image comprises a background region and a target region; determining a target area according to a preset area determination rule and the target image, wherein the target area comprises a thighbone area, a tibia area, a fibula area and a patella area; determining a patella region according to a preset first determination rule and the target image; filling the patella region according to a preset filling rule to obtain a patella region boundary line; and determining a femur region boundary line, a tibia region boundary line and a fibula region boundary line according to a preset second determination rule. The knee joint CT image segmentation method has the advantages that the knee joint CT image can be automatically segmented, and the workload of doctors is reduced.

A fibula sinking nail, comprising a longitudinally long nail body, the two ends of the nail body in the axial direction are defined as a first nail segment and a second nail segment, and the first nail segment is used to penetrate into the truncated fibula the bone cavity of one fibula, and the second nail segment is used to penetrate into the bone cavity of the other fibula of the truncated fibula, and at least one of the first nail segment or the second nail segment, It can move relatively in the bone cavity of the corresponding fibula, so that the truncated fibula can move relative to the tibial subsidence along the nail body, and use the nail body to restrict the two truncated fibula to produce lateral movement. offset.

The invention relates to the technical field of medical auxiliary instruments, in particular to a tibiofibula fracture traction repositor. The tibiofibula fracture traction repositor comprises a proximal support frame, a distal support frame, a tibiofibula traction frame, a tibiofibula angle adjusting mechanism, a tibiofibula traction adjusting mechanism, a sole fixing bracket and a thigh fixing support plate; the proximal support frame and the distal support frame are provided with the tibiofibula traction frame adjustable in angle; and the left end of the tibiofibula traction frame is hinged to the upper end of the proximal support frame. According to the tibiofibula fracture traction repositor, manual labor is saved; a traction effect on a broken tibiofibula bone can be stably maintained for a long time by mechanical traction, and human intervention is eliminated, and thus a doctor can better conveniently analyze a fracture surface and realize good butt joint treatment of broken ends; and secondly, vision is not limited; meanwhile, an operation space is reserved at each of the front side and the rear side of a shank of a patient, so that a doctor can conduct treatment conveniently, the operation difficulty is greatly lowered, and the treatment efficiency of reposition and operation is improved.

The invention discloses a four-section type mandible molding plate. The molding plate comprises a U-shaped porous titanium plate symmetrical left and right, wherein transplanted bone blocks of two side chins are fixed on the front part of the titanium plate; fibula bone blocks of two side mandible parts are fixed on the middle part of the titanium plate; a mandibular ramus is fixed on the back part of the titanium plate; the four-section type mandible molding plate is the U-shaped 32-hole, 30-hole or 28-hole titanium plate; the titanium plate is divided into two symmetrical titanium plates left and right around the middle line, including a 16-hole titanium plate, a 15-hole titanium plate, or a 14-hole titanium plate; the spacing between two holes is relatively large; densely arranged 8-hole titanium plate, 7-hole titanium plate or 6-hole titanium plate are arranged on the middle part of the titanium plate; and densely arranged 6-hole titanium plate is arranged on the back part of the titanium plate. The four-section type mandible molding plate is a U-shaped rebuilding plate suitable for adult Chinese; the bending of the titanium plate within a plane is reduced, the bending difficulty is lowered, and the tight fit between the rebuilding plate and each transplanted bone block of the mandible can be facilitated; in addition, the spacing between two nail holes in the front part of the titanium plate is relatively large, so that a position is reserved for tooth implantation, surgical steps are simplified, and trauma to a patient is reduced.