24 results about "Tibia osteotomy" patented technology

The application discloses a data processing method and device, a storage medium and an electronic device. It relates to the technical field of medical treatment. The method comprises the following steps: a tibia three-dimensional model is constructed, and a plurality of target steel nail three-dimensional models are obtained; a plurality of second medical images are obtained, and a plurality of target steel nail first two-dimensional pixel point sets and a tibia second two-dimensional pixel point set are obtained according to the plurality of second medical images; target space conversion parameters of the plurality of target steel nails in the tibia coordinates are obtained by calculation according to the target steel nail first two-dimensional pixel point sets, the tibia second two-dimensional pixel point set, the tibia three-dimensional model and the steel nail three-dimensional models; a guide plate model is obtained according to the target space conversion parameters, and a target space posture of a tibia osteotomy plane is obtained according to the guide plate model. Through the application, the technical problem that the space posture of the tibia osteotomy plane is relatively low in accuracy because the space posture of the tibia osteotomy plane is determined by relying on artificial experience is solved.

The invention discloses a tibia unicompartmental prosthesis, a femur unicompartmental prosthesis and a knee joint unicompartmental prosthesis component, the tibia unicompartmental prosthesis comprises a first mounting surface, and the first mounting surface is used for being mounted to a tibia osteotomy surface; the first mounting surface is provided with a first bone cement area and a first porous area; the first bone cement area is used for being fixed to the front side of the tibia osteotomy surface, and a first bone cement groove is formed in the first bone cement area and used for containing bone cement; the first porous area is used for being fixed to the rear side of a tibia osteotomy surface, the first porous area is provided with a first porous structure, and pores for bone ingrowth are formed in the first porous structure. In the application, the front side of the corresponding unicompartmental prosthesis is fixed through the bone cement, and the rear side of the corresponding unicompartmental prosthesis is fixed through the porous structure, so that the mounting stability of the corresponding unicompartmental prosthesis can be improved.

The utility model relates to the technical field of medical instruments, in particular to a tibia osteotomy guide plate. The tibia osteotomy guide plate comprises a base block, and the far side of the base block is provided with a tibia front side attaching face; the horizontal guide block is fixed at the upper part of the base block; a horizontal guide groove is formed in the horizontal guide block; the vertical guide block is fixed on the horizontal guide block; a vertical guide groove is formed in the vertical guide block and extends to the horizontal guide block; the platform lug is fixed at the far end of the horizontal guide block; a tibial plateau binding surface is arranged at the bottom of the plateau lug; the platform surface pressing sheet is arranged at the front end of the platform lug; the limiting piece is arranged at the side part of the platform lug and is close to the front end of the platform lug; in the width direction of the horizontal guide block, the vertical guide block and the limiting piece are located on the two sides of the horizontal guide block respectively. According to the tibia osteotomy guide plate, more accurate positioning can be achieved, stability is higher, and the osteotomy amount of vertical osteotomy can be accurate.

The utility model belongs to the technical field of medical instruments, and discloses a tibia osteotomy split guide plate which comprises a first guide plate body and a second guide plate body. The first guide plate body comprises a limiting block, a positioning rod fixedly arranged on the limiting block and a calibration block fixedly arranged on the limiting block, the end of the positioning rod is a first fitting curved surface attached to the upper bone surface of the tibia, and a force line hole is formed in the calibration block; an osteotomy groove is formed in the second guide plate main body, a screw placement hole is formed in the second guide plate main body, and one end of the second guide plate main body is a second fitting curved surface attached to the tibia side bone surface; the limiting block and the second guide plate body are connected through an insertion structure. According to the utility model, the screw can be placed once, the uniqueness of the screw channel is ensured, and the positioning accuracy and the success rate of osteotomy can be improved.

The invention discloses an expanding and fixing device and method for tibia osteotomy. A distraction and fixation device for tibia osteotomy comprises a distraction assembly, and the distraction assembly comprises a left distraction device and a right distraction device which are detachably arranged left and right; the left spreader comprises a left overturning plate and a left fixing plate, and the front end of the left overturning plate is hinged to the front end of the left fixing plate; the right spreader further comprises a right turnover plate and a right fixing plate, and the front end of the right turnover plate is hinged to the front end of the right fixing plate. An upper notch is formed in the adjacent side of the left turnover plate and the right turnover plate, a rear end opening of the upper notch is used for switching a sliding-in opening for sliding in the moving plate and the supporting wedge, and the left turnover plate and the right turnover plate are linked through the moving plate; and the angle adjusting assembly is used for controlling the distraction angles of the left distraction device and the right distraction device. The distraction angle can be controlled, and control over the distraction angle is guaranteed by controlling the rotation angle of the driving rotary knob.

The invention discloses a data processing method and device, a storage medium and electronic equipment. The method comprises the following steps: constructing a tibia three-dimensional model, and obtaining a steel nail three-dimensional model of a plurality of target steel nails; obtaining a plurality of orthogonal second medical images, and obtaining a first two-dimensional pixel point set of the plurality of target steel nails and a second two-dimensional pixel point set of the tibia according to the plurality of second medical images; calculating according to the first two-dimensional pixel point set, the second two-dimensional pixel point set, the tibia three-dimensional model and the steel nail three-dimensional model to obtain target space conversion parameters of the multiple target steel nails under the tibia coordinates; and obtaining a guide plate model according to the target space conversion parameters, and obtaining a target space attitude of the tibia osteotomy plane according to the guide plate model. By means of the method and device, the technical problem that the accuracy of the space posture of the tibia osteotomy plane is low due to the fact that the space posture of the tibia osteotomy plane is determined through related technologies depending on artificial experience is solved.

The tibia osteotomy positioning assembly comprises a base, a mounting seat and a pointer structure, at least one inserting piece is arranged on each of the two sides of the base in the first direction, each inserting piece is used for being inserted into an osteotomy groove of an osteotomy block, and the inserting pieces on the two sides of the base in the first direction have a height difference in the second direction; the mounting seat is arranged on one side of the base in the second direction; the pointer structure comprises a connecting rod and at least one measuring pointer, the measuring pointers are connected with the connecting rod, each measuring pointer comprises an abutting end used for abutting against the articular surface of the tibia, and the connecting rod is rotationally connected with the mounting base; the connecting rod can rotate around a first rotating axis relative to the mounting seat so as to drive the abutting end to rotate, and the connecting rod extends along the first rotating axis; and / or the mounting seat can rotate around a second rotating axis relative to the base, and the second rotating axis is basically parallel to the second direction. According to the tibia osteotomy positioning assembly provided by the embodiment of the invention, the measuring pointer can accurately abut against the lowest point of the tibia articular surface.

The tibia osteotomy positioner comprises a telescopic rod and further comprises a positioning assembly, an ankle holding device and an inclination angle adjusting assembly which are installed on the telescopic rod, the positioning assembly is used for fixing the end of a tibia, the inclination angle adjusting assembly comprises a base, a rotary knob, a swing rod and an osteotomy block installation plate, the base is arranged on the telescopic rod in a sleeved mode, and the distance between the base and the positioning assembly is adjustable. When the knob rotates, the lower end of the swing rod moves along the arc-shaped groove in the knob, the arc-shaped groove drives the lower end of the swing rod to be gradually away from or gradually close to the rotating center of the knob, and the upper end of the swing rod drives the osteotomy block mounting plate to incline. Adjustment can be carried out according to anatomical forms of different patients, meanwhile, caster angle multi-angle adjusting and positioning can be achieved, the requirements of different patients are met, the adjusting range is large, operation is easy, positioning is accurate, flexibility is high, the visualization space is large, and intraoperative measurement and position adjusting are convenient.

The utility model relates to the technical field of medical instruments, in particular to a tibia alignment tool under a navigation system, which comprises an intramedullary positioning rod, one end of the intramedullary positioning rod is connected with a tibia in a pluggable manner, and an intramedullary positioning frame component is mounted on one side of the tibia and positioned on the outer wall of the intramedullary positioning rod. According to the tibia osteotomy guider, the angle limiting hole and the eccentric knob are arranged in the intramedullary positioning frame assembly, the angle position of the intramedullary positioning frame assembly is adjusted only by inserting the eccentric knob into the angle limiting hole for fixing, the locking shaft can be rotated by screwing the handle, and the position of the tibia osteotomy guider is adjusted. The tibia osteotomy guider can be better attached to the outer wall of the tibia for accurate positioning, one end of the button block compresses the spring to move, meanwhile, the other end of the button block is warped, then the button block and the transverse Morse taper hole are disconnected, the transfer rod body can be flexibly replaced and detached, installation is more convenient, and positioning is accurate.

The invention discloses a tibia osteotomy positioning assembly, a gap measuring assembly, an osteotomy device and an osteotomy system.The tibia osteotomy positioning assembly comprises a mounting mechanism and at least one measuring piece, and the mounting mechanism is used for being connected with a tibia osteotomy block; the at least one measuring piece is used for being connected with the mounting mechanism, the mounting mechanism can place the at least one measuring piece at a first measuring position and a second measuring position, and the at least one measuring piece is located at different positions of the mounting mechanism when the at least one measuring piece is placed at the first measuring position and the second measuring position; the measuring piece located at the first measuring position is used for being inserted between the medial condyle of the femur and the articular surface of the tibia so as to measure the distance between the medial condyle and the articular surface and position the relative position of the tibia osteotomy block and the articular surface; the measuring piece at the second measuring position is used for being inserted between the lateral condyle of the femur and the articular surface of the tibia so as to measure the distance between the lateral condyle and the articular surface and position the relative position of the tibia osteotomy block and the articular surface.

The invention discloses a knee joint osteotomy guide plate and a use method thereof, and relates to the field of knee joint replacement tools, the knee joint osteotomy guide plate comprises a thighbone osteotomy guide plate, the thighbone osteotomy guide plate comprises a thighbone guide plate main body and a thighbone insertion block, the thighbone guide plate main body and the thighbone insertion block are in insertion fit, and the thighbone guide plate main body is provided with a first binding surface, a first spicule fixing hole and a thighbone osteotomy groove; a second binding surface is arranged on the thighbone insertion block, and the first binding surface and the second binding surface are used for being attached to the thighbone surface or the thighbone osteophyte; the tibia osteotomy guide plate comprises a tibia guide plate main body and a tibia insertion block, the tibia guide plate main body and the tibia insertion block are matched in an inserted mode, the tibia guide plate main body is provided with a third attaching face, a second bone needle fixing hole and a tibia osteotomy groove, the tibia insertion block is provided with a fourth attaching face, and the third attaching face and the fourth attaching face are used for being attached to the tibia face or the tibia osteophyte; according to the osteotomy guide plate, an osteotomy plane is accurately positioned by utilizing a plurality of parts or osteophyte with obvious knee joint bone tissue characteristics, so that the osteotomy accuracy is improved, and the surgical risk can be reduced.

The invention provides a precise distraction angle planning method, which comprises the following steps of: reconstructing femur surface grid data and tibia surface grid data, marking related feature points, generating a horizontal osteotomy surface and adjusting the horizontal osteotomy surface; calculating the depth of a horizontal osteotomy surface and the vertical height between the horizontal osteotomy surface and a tibia inner and outer side platform in real time, determining a hinge point, determining a vertical osteotomy surface, simulating the state of the tibia after biplane cutting, determining a distraction angle and the like; personalized preoperative planning is implemented in a 3D space, and automatic setting of the optimal distraction angle of tibia osteotomy is ensured through preoperative personalized evaluation, so that optimal knee joint load distribution is achieved, and operation uncertainty is reduced; three-dimensional data of a tibia, such as CT or MRI, is used, osteotomy and distraction are carried out by calculating the geometrical relationship of feature points of a tibia three-dimensional image and adjusting the section of the three-dimensional image to a proper position, and the method aims at improving the accuracy of planned correction angle measurement.

The utility model belongs to the technical field of medical instruments, and discloses a tibia osteotomy guide plate which comprises a base body and two cantilevers fixedly arranged on the base body, a screw placing hole and an osteotomy groove are formed in the base body, a first fitting curved surface is arranged at one end of the base body, and second fitting curved surfaces are arranged on the two cantilevers. Wherein one cantilever is obliquely arranged and forms an acute angle with the other cantilever, and the obliquely arranged cantilever is arc-shaped. In the process of fitting with the tibia, damage to the human body can be reduced to the maximum extent, and postoperative recovery is facilitated.

The present disclosure relates to the field of robot control technology, and in particular, to a tibia osteotomy planning apparatus for a keel groove structure and an automatic tibia osteotomy apparatus. According to the structure / size information of the keel groove structure and the osteotomy radius of a rotary osteotomy tool, the present disclosure performs osteotomy tool end effector trajectory planning in the osteotomy reference coordinate system of the keel groove structure to give a tool end effector movement trajectory matching the keel groove structure, and after acquiring the expected assembly pose information of the tibia assembly surface where the keel groove structure is located relative to the tibial plateau surface of the tibia entity of interest in the robot base coordinate system, trajectory transformation processing on the tool end effector movement trajectory is performed according to the expected assembly pose information to give an expected osteotomy trajectory of the rotary osteotomy tool on the tibia entity of interest in the robot base coordinate system, so as to achieve the automatic osteotomy function for the keel groove with high precision, improve the matching degree between the assembly space and the keel groove structure, and ensure the expected effects of the TKA surgery.

The utility model provides a positioning device for tibia osteotomy, and belongs to the technical field of medical instruments. The positioning device for tibia osteotomy comprises a force line adjusting telescopic assembly, an osteotomy guide assembly and a fixing assembly, the osteotomy guide assembly is arranged at the upper end of the force line adjusting telescopic assembly, the fixing assembly comprises an ankle holding device and a leg holding device, the ankle holding device is arranged at the lower end of the force line adjusting telescopic assembly, and the leg holding device is arranged at the lower end of the force line adjusting telescopic assembly. The ankle holding device is used for being arranged at the ankle joint of the patient, the leg holding device is arranged on the force line adjusting telescopic assembly and is arranged over the ankle holding device, and the leg holding device is used for being arranged at the shank of the patient. According to the positioning device for tibia osteotomy, the ankle holding device and the leg holding device are arranged, the ankle holding device is used for clamping the ankle joint of a patient, the leg holding device is used for clamping the shank of the patient, and the stability of the device in the using process is improved.

The utility model relates to the technical field of medical instruments, in particular to an internal fixation instrument for high tibia osteotomy, which comprises a fusion body and a fixation body which are fixedly connected, the fusion body is implanted into an osteotomy notch, the fixation body is arranged outside the osteotomy notch in a fitting manner, and lengthening plates are symmetrically arranged in the width direction of the fixation body. The lengthening plate is fixedly connected with the tibia through the screw set, the screw set is divided into a first screw unit and a second screw unit, the first screw unit is arranged above an upper incisura of an osteotomy notch, the second screw unit is arranged below a lower incisura of the osteotomy notch, and the first screw unit and the second screw unit each comprise a positioning part and a locking part. The positioning part is arranged on the side close to the osteotomy notch. According to the internal fixation instrument for high tibia osteotomy, the fusion body and the fixing body are combined, and the lengthening plate and the screw set are arranged on the fixing body, so that an osteotomy notch is fixed, the stripping range of soft tissue can be reduced, trauma is small, and the operation process can be simplified.

The utility model discloses a tibia osteotomy fixing device, which particularly relates to the technical field of medical instruments and comprises a connecting rod and an adjusting component arranged on the outer wall of the connecting rod. Through the arrangement of the clamping block assemblies, when tibia osteotomy is carried out on a patient through the fixing device, in order to prevent the situation that the patient moves disorderly during treatment, the accuracy of the tibia osteotomy cutting position is reduced, and the treatment effect on the patient is affected, the upper clamping block assembly and the lower clamping block assembly are opened by pressing a torsional spring, and the shank part of the patient is put into the clamping block assemblies; the proper osteotomy operation angle and position are determined by adjusting the upper rod and the lower rod, and after the position is determined, the clamping block is locked for preliminary fixation; the rubber pad on the inner side of the clamping block is adjusted by adjusting the knob screw rod of the clamping block, so that the clamping block is more attached to the leg of the patient, the near end of the tibia does not need to be punched in the operation process and then is fixed through a screw or a positioning pin, damage to the tibia of the patient is reduced, and the patient can recover faster after the operation.

The invention provides an osteotomy angle adjusting device used in total knee arthroplasty. The embodiment of the invention provides an osteotomy angle adjusting device used in total knee arthroplasty. The osteotomy angle adjusting device comprises a tibia force line positioning tool; wherein the tibia force line positioning tool comprises a 3D printing personalized tibia osteotomy guider and a coronal plane force line alignment positioning rod; the personalized tibiofibula embracing device is subjected to 3D printing; wherein the tibiofibula embracing device is individually designed and customized according to the shape of an ankle joint of a patient, and scale marks at corresponding positions are arranged on the tibiofibula embracing device based on a first direction and a second direction which are perpendicular to each other and used for adjusting an osteotomy angle; wherein the first direction and the second direction respectively represent two dimensions of backward inclination and inward and outward turning. According to the embodiment of the invention, osteotomy angle adjustment can be carried out in total knee arthroplasty, and inaccurate osteotomy angle and poor prosthesis position caused by inaccurate PSI placement position are avoided.

1. The name of this design product: Split tibial osteotomy guide plate. 2. Purpose of the product of this design: used for tibial osteotomy. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: main view.

The utility model relates to the technical field of medical instruments, in particular to an anti-overturning tibia osteotomy guide plate. The anti-overturning tibial osteotomy guide plate comprises a base, a guide part and a tibial plateau positioning part, the tibial plateau positioning part is arranged on the base through the guide part and is used for guiding and positioning a tibial plateau; a horizontal osteotomy groove and a vertical osteotomy groove are formed in the tibial plateau positioning part, and the interior of the horizontal osteotomy groove communicates with the interior of the vertical osteotomy groove and used for adjusting the distance between the tibial plateau positioning part and the base; the tibia platform positioning part is provided with a tibia platform attaching face, the base is provided with a tibia front side attaching face, and the tibia front side attaching face can be attached to the tibia front side and the tibia platform for positioning. Through the arrangement of the tibia front side attaching face and the tibia platform attaching face, tibia osteotomy can be positioned at the same time, the placing accuracy of the guide plate is guaranteed, and the operation effect is improved.

The invention discloses an osteotomy system used in knee joint replacement, belongs to the field of medical instruments, and aims at solving the problems that a traditional knee joint replacement operation is large in trauma and low in osteotomy accuracy. According to the osteotomy system, the kinematics alignment technology and the thighbone priority technology are creatively fused, and the operation effect is remarkably improved. The Chinese character 'Jin'-shaped tibia osteotomy positioner in the system can be tightly attached to a tibia anatomical structure, and the osteotomy position and angle can be accurately determined. The femur osteotomy positioner is divided into a first type and a second type, the first type is matched with a conventional femur, the second type aims at a special structure or a complex operation, and the unique structure of the femur osteotomy positioner provides powerful support for precise osteotomy. The force line-angle measurer can monitor the vertical condition of the osteotomy surface and the force lines of the thighbone and the tibia coronal surface in real time and the caster angle of the tibial plateau osteotomy groove. The system greatly improves the surgical minimally invasive property, reduces incisions and reduces soft tissue injuries. The osteotomy accuracy is remarkably improved, the biomechanical property of the artificial joint is closer to that of a natural joint, and the service life of the prosthesis is prolonged.

The utility model belongs to the field of tibia osteotomy auxiliary devices, and discloses an osteotomy auxiliary device for tibia extramedullary positioning, which comprises a main body, a clamping seat, a connecting seat, a first end cap, a screw rod and a second end cap, the connecting seat is connected with the main body, the first end cap, the screw rod and the second end cap are sequentially and coaxially connected, a pair of clamping arms is hinged on the clamping seat, and the screw rod is arranged between the clamping seat and the connecting seat and meshed with the clamping seat; the clamping seat is in sliding fit with the connecting seat, the connecting seat is clamped between the first end cap and the second end cap, the first end cap is provided with a plurality of acting parts, the connecting seat is provided with an elastic deformation movable assembly, and the movable assembly is clamped between the adjacent acting parts. According to the scheme, when the main body support on the ankle holding assembly is moved, moving distance feedback can be generated, an operator can accurately perceive the real moving distance of the main body support, the operator is prevented from being disturbed by external factors such as vibration and noise, and the working efficiency is improved. The moving precision is improved.

The utility model discloses a tibia osteotomy guider fixed on a unicondylar femur test mold. The tibia osteotomy guider comprises a fixer and an imprinting device, the fixer comprises a fixed switch and two fixed support arms, fixed feet are arranged at the two ends of each fixed support arm, the centers of the two fixed support arms are crossed and hinged, and the fixed switch is arranged at the hinged part; the curvature of the imprint device is a strip plate consistent with that of the thighbone test mold, the length direction of the imprint device is set as the length direction, two connecting blocks are connected in the sliding groove in a sliding mode, and the two connecting blocks are connected with the ends of the same sides of the two fixed supporting arms respectively; a plurality of imprinting teeth are arranged in the length direction of the imprinting device and located on the convex face of the imprinting device. The optimal longitudinal osteotomy position of the tibia can be accurately indicated, and the influence of subjective factors is reduced.

The utility model provides a tibia osteotomy positioning device, and belongs to the technical field of medical instruments. The tibia osteotomy positioning device comprises a force line adjusting rod assembly, an osteotomy guide assembly, a positioning assembly and an ankle holding device, the positioning assembly is arranged at the upper end of the force line adjusting rod assembly, abuts against an intercondylar bulge and is used for positioning the intercondylar bulge, the osteotomy guide assembly is arranged on the force line adjusting rod assembly, and the ankle holding device is arranged on the force line adjusting rod assembly. The osteotomy guiding assembly is arranged below the positioning assembly, and the ankle holding device is arranged at the lower end of the force line adjusting rod assembly and used for being arranged at the ankle joint of a patient. According to the tibia osteotomy positioning device, the positioning assembly is arranged and located at the upper end of the force line adjusting rod assembly, when the tibia osteotomy positioning device is used, the positioning assembly is placed on an intercondylar bulge of a patient, the measurement and calculation accuracy of the osteotomy amount is improved, and the situation that the recovery of the patient is affected due to the fact that the osteotomy amount is too large is avoided.