13 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 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 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 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 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.

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 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.