124 results about "Joints surgery" patented technology

The invention provides an orthopedic joint replacement operation simulation device structure capable of being adjusted at multiple angles, and relates to the technical field of medical apparatuses and instruments. Four groups of lifting seats are mounted at the upper end of the bottom frame through bolts, a partition plate is mounted above the four groups of lifting seats, a first sliding plate slides on the partition plate, and a rail plate is mounted on the first sliding plate through bolts; the operation simulation effect is improved through various adjusting structures, the device height can be accurately adjusted by rotating a second hand wheel on a lifting seat on the left rear side of a bottom frame, a first sliding plate and a second sliding plate slide through cooperation of a first lead screw and a first motor and cooperation of a second lead screw and a second motor respectively, and a first overturning plate can be overturned by operating a first hand wheel; a rotating rod in the mounting seat drives the turntable to rotate; and a third motor is matched with a connecting base on the mounting frame to achieve overturning of a second overturning plate, the multi-angle overturning and rotating functions are beneficial for an operator to comprehensively understand the joint structure, and the surgical operation proficiency and accuracy are improved.

The invention discloses a preoperative planning method and system based on a three-dimensional ankle joint replacement CT image, and the method comprises the steps: carrying out the data processing of to-be-processed ankle joint image data through a statistical model, and constructing a three-dimensional average ankle joint point cloud model; registering the three-dimensional average ankle joint point cloud model with ankle joint image data to be processed through a CPD non-rigid point cloud registration algorithm to obtain an ankle joint prosthesis placement position; performing data prediction on the to-be-processed ankle joint image data through a random forest algorithm to obtain ankle joint prosthesis type data; and three-dimensional ankle joint replacement preoperative planning is realized by combining the ankle joint prosthesis placement position and the ankle joint prosthesis body size data. According to the method, the accurate ankle joint registration result can be achieved in the three-dimensional space by reducing the difference between individuals. The preoperative planning method and system based on the three-dimensional ankle joint replacement CT image can be widely applied to the technical field of ankle joint surgical planning.

The invention relates to the technical field of surgical navigation and positioning, in particular to a knee joint surgical navigation and positioning method and system based on neural network and medical image.The method comprises the steps that a surgical printing model is constructed, three-dimensional scanning is conducted on the surgical printing model, a three-dimensional knee joint image is obtained, two-dimensional scanning is conducted on the surgical printing model, and an azimuth knee joint image set is obtained; performing automatic registration on the orientation knee joint image set and the three-dimensional knee joint image to obtain a training registration parameter set, training a plurality of neural network models according to the training registration parameter set to obtain a plurality of adaptive registration models, and integrating the adaptive registration models to obtain an integrated registration model, and inputting the intraoperative two-dimensional image and the three-dimensional knee joint image into the integrated registration model to obtain a three-dimensional navigation positioning image. According to the method, the accuracy of navigation positioning in the knee joint operation can be improved, and the image registration time in the knee joint operation is shortened.

Methods, devices and systems for planning, monitoring, simulating and / or evaluating a knee surgery procedure. Imaging data of the lower limb is acquired. Interpretable 3D models are generated and combined with static and dynamic parameters into an enhanced bone model. Intervention strategy is simulated. Deviations from the intervention strategy are monitored during surgery. Clinical outcome is predicted from machine learning. Methods for calibrating knee surgery imaging data, establishing an alignment reference frame, and simulating an intervention strategy in a knee surgery procedure.

The invention discloses a multi-angle traction fixing device for a knee joint operation, relates to the technical field of medical instruments, and solves the problem that the bending angle of a knee joint cannot be conveniently adjusted. A multi-angle traction fixing device for a knee joint operation comprises a bed body, a groove is formed in the side, close to a bed tail, of the upper end of the bed body, symmetrical supporting seats are fixedly arranged on the front side and the rear side, close to a bed head, in the groove, and shaft rods are in driving connection between the symmetrical supporting seats on the two sides through driving mechanisms; the two sides of the outer surfaces of the two shaft rods are fixedly connected with thigh supports which are symmetrically arranged, and the ends, away from the supporting base, of the two symmetrical thigh supports are connected with shank supports which are arranged in a U shape. The driving mechanism drives the shaft rod to rotate to drive one end of the thigh support on the outer surface to be lifted upwards, and then the shank support is hinged to the lifted part of the thigh support, so that a proper included angle is formed between the joints of the shank support and the thigh support.

The invention discloses a non-invasive pelvic bone tracking system for hip joint surgery, and belongs to the technical field of intelligent surgical navigation and medical imaging. A non-invasive pelvic bone tracking system for hip joint surgery comprises a multi-modal sensing module, a dynamic resolution optimization module, an AI correction module and a multi-region parallel tracking engine, and the multi-modal sensing module comprises a 3D ultrasonic unit, a near-infrared optical unit and an inertial measurement unit. The problems of positioning error and limitation of scanning speed and coverage range caused by fat interference in the prior art are solved. According to the method, low-frequency ultrasonic, near-infrared optical and IMU data are fused, scanning modes are intelligently switched based on fat thickness, the speed and precision are balanced, ultrasonic skeleton features and optical body surface topology are jointly analyzed, fat attenuation dynamic compensation is achieved, multi-region GPU parallel tracking supports intra-operative real-time multi-target collaborative navigation is achieved, and multi-target collaborative navigation is achieved. Millimeter-level real-time tracking of obese patients during operation is realized.

An orthopaedic surgical instrument includes a 4-in-1 cutting block and a removable alignment guide. The alignment guide is configured to contact the posterior femoral condyles of a patient's femur so as to kinematically align the 4-in-1 cutting block. A number of shims are selectively installed on the alignment guide to account for any cartilage loss present on the patient's femur. A method of surgically preparing a patient's femur utilizing kinematic alignment is also disclosed.

The present invention relates to a surgical spacer device (100) for a joint, comprising a substantially cylindrical or truncated-cone-shaped main body (101), internally hollow and configured for insertion in a distracted joint (1, 2); the main body (101) comprising: a first terminal surface (102) substantially flat and configured to abut onto a first bone portion (1) of the joint (1, 2); a second terminal surface (103) substantially annular and configured to abut onto a second bone surface (2) of the joint (1, 2) opposite the first bone portion (1), the second terminal surface (103) having a first opening (10) for access to the second bone portion (2); at least one lateral element (104) configured for maintaining a three-dimensional spaced structure between the first terminal surface (102) and the second terminal surface (103), the at least one lateral element (104) defining a second opening (20) configured for allowing a lateral access inside the main body (101) and further an access to the second bone portion (2) through the first opening (10).

A method for guiding bone removal during a surgical procedure includes receiving a two-dimensional image of at least a portion of a joint during a surgical procedure; determining an alignment of a pre-generated three-dimensional model of the at least a portion of the joint with the two-dimensional image based on one or more features in the two-dimensional image related to the at least a portion of the joint, wherein the pre-generated three-dimensional model contains a representation of planned bone removal; generating an overlay image containing an overlay of at least a portion of the representation of the planned bone removal on the two-dimensional image based on the determined alignment; and displaying the overlay image to guide the bone removal during the surgical procedure.

A bone registration method and system for joint replacement surgery, based on a VSF surface in a preoperative coordinate system generated from preoperative bone image data and a source point set SPS in an intraoperative coordinate system generated from point data collected from the patient's actual bone surface during surgery, determines the transformation relationship between the preoperative and intraoperative coordinate systems through initial and precise registration. The method includes: a first step: selecting multiple corresponding point pairs from the source point set SPS and the VSF surface, performing initial registration based on Singular Value Decomposition (SVD), and obtaining the initial transformation matrix; and a second step: performing precise registration based on the initial transformation matrix using the ICP method. Each ICP iteration employs a least-squares optimization method that minimizes the sum of squared distances between each point in the transformed source point set SPS and the corresponding projection points in the projection point set PSPS. The algorithm stops when the error is less than a set value or the number of iterations reaches a set value.

The application discloses a robot-assisted joint replacement surgery accurate positioning device, which comprises a machine arm body, a lower limb arm and an upper limb arm arranged on the lower limb arm, an adjusting assembly, a positioning component, a first joint, a rotating shaft body and a matching shaft body, and rotating members arranged on the lower limb arm and the upper limb arm. The machine arm body, the adjusting assembly and the angle transformation assembly are cooperatively matched, the machine arm body provides basic bearing and multidimensional motion support for surgery positioning, and flexible coverage of a surgery area is realized through rotation and stretching of the large arm.

The present invention relates to the technical field of medical devices applied to artificial knee joint replacement surgery, and discloses a pressure measurement device, a preparation method and a pressure measurement equipment. Among them, the pressure measurement device is used to measure the pressure between artificial knee joint prostheses, and includes a substrate, a plurality of sensing units arranged on the surface of the substrate, and a packaging layer covering the sensing units. The substrate is arranged between the femoral component and the tibial component. The sensing units are arranged on one side of the substrate facing the femoral component, and at least can cover the area where the surface of the substrate contacts the bicondyles of the femoral component. The sensing unit includes a bottom electrode layer, a piezoelectric material layer and a top electrode layer arranged in a direction away from the substrate. The sensing unit is configured to convert the pressure applied by the femoral component to the surface of the substrate into an electrical signal and transmit it to an external signal processing device for analysis and processing to determine the pressure information on the surface of the substrate.

A method for planning a surgery to a knee joint includes recording a target HKA for a patient and, based on an evaluation of wear of the knee joint, setting an initial resection plan including setting planned femoral resections and setting at least one planned tibial resection. The method includes determining a planned HKA of the patient based on the initial resection plan. The planned HKA is a function of a femoral coronal alignment provided by the planned femoral resections and a tibial coronal alignment of the patient provided by the planned at least one tibial resection. The method further includes selectively adjusting the initial resection plan based on the target HKA and the planned HKA by adjusting the planned tibial coronal alignment and / or the planned femoral coronal alignment to provide an adjusted resection plan with an adjusted planned HKA that is within a threshold of the target HKA.

The invention relates to the technical field of medical data processing and intelligent decision-making, in particular to an auxiliary decision-making data processing system for a pediatric hip joint surgery anesthesia scheme, which comprises a multi-dimensional state acquisition module for synchronously acquiring perioperative period physiological signs and environmental event data; the causal decoupling analysis module is used for decomposing the physiological signal fluctuation into nociceptive stimulation, drug inhibition and volume deficiency components; the compensatory reserve evaluation module is used for generating a quantized system compensatory reserve index based on the causal attribution vector; the risk game decision module is used for constructing a multi-target dynamic game model and generating a control strategy according to an interval where an index is located; the proportion optimization output module is used for calculating dynamic proportion parameters aiming at different regulation and control variables and generating a decision instruction; according to the method and the system, latent hemorrhage or vagus nerve reflex can be effectively identified, wrong medication during compensation depletion is avoided, and the safety of a high-risk operation is remarkably improved.

The invention provides a bone joint replacement surgery auxiliary device which comprises a bottom plate, a main lifting part is arranged on the upper side of the bottom plate and comprises two symmetrically-arranged adjusting plates, the lower portions of the side faces of the two adjusting plates are movably arranged on the bottom plate, and the upper portions of the side faces of the two adjusting plates are rotationally connected through a mounting shaft; a mounting opening is formed in the top end of the adjusting plate, a telescopic rod is slidably arranged in the mounting opening, and a positioning piece used for adjusting and positioning the telescopic rod is arranged on the side face of the adjusting plate. According to the auxiliary device for the bone joint replacement surgery, when a patient is subjected to knee joint replacement, supporting and positioning are conducted through the auxiliary device, it is guaranteed that legs of the patient are stably placed in the surgery process, meanwhile, the auxiliary device can be used for adjusting and positioning the height of the legs of the patient, and medical staff can conveniently conduct surgical treatment on the patient; and the angle of the knee joint can be adjusted and positioned according to operation requirements, so that the auxiliary device is convenient to use.

The utility model discloses an acetabular fossa positioning tool for hip joint surgery, and relates to the technical field of total hip joint replacement. The damping device comprises a mounting frame, a mounting hole is formed in one side of the mounting frame, a damping ball joint is mounted on one side of the mounting frame, a ball body is mounted in the damping ball joint, a connecting rod is fixedly connected to one side of the ball body, a supporting rod is arranged on one side of the connecting rod, and the supporting rod is fixedly connected to the other side of the mounting frame. An extension rod is arranged on one side of the supporting rod, and a fixing shell is arranged on one side of the extension rod. According to the utility model, the pressing block is pressed downwards, the spring is compressed under stress, then the pressing block descends into the positioning groove, and then the extension rod is dragged to enable the movable rod to move in the supporting rod in a limited manner; and the pressing block is moved to the interior of the next clamping groove and then is reset to the interior of the clamping groove by virtue of the elasticity of the spring, so that the current extending distance is positioned, and the effect of conveniently adjusting the use length is achieved.

The invention aims to provide an adjustable knee joint flexion maintaining device for knee joint replacement surgery, and relates to the technical field of medical instruments. A thigh supporter and a shank supporter are arranged on a supporting plate; during use, the thighs and the shanks of a patient are placed on the thigh plates and the shank plates of the thigh supporting device and the shank supporting device, the thigh plates are supported below the thighs, the shank plates are supported below the shanks, and the peripheries of knee joints are fully exposed; by rotating the thigh screw rod and the shank screw rod, the angles of the thigh plate and the shank plate are adjusted, and the knee joint buckling angle is adjusted; the distance between the thigh supporter and the shank supporter is adjusted through sliding of the thigh supporter; the height of the lower portion of the shank plate is adjusted through stretching of the telescopic rod, the bending angle of the knee joint and the height of the shank are further adjusted in cooperation with rotation of the shank plate, and the position of the lower limb can be better adjusted according to actual knee joint operation conditions.

The application discloses a data processing method and device for a hip joint, a storage medium and an electronic device. It relates to the technical field of artificial intelligence. The method comprises the following steps: acquiring medical image data of a target object hip joint; identifying the fusion type of the hip joint in the medical image data by using a fusion recognition model, to obtain a target fusion type corresponding to the medical image data; performing three-dimensional reconstruction based on the medical image data according to the target fusion type, to obtain a first bone model; and obtaining a target registration point set according to the first bone model, wherein the target registration point set is used to provide guidance for registration in a hip joint surgery. The application solves the problem of low accuracy of registration point selection caused by hip joint fusion in the prior art.

The present invention belongs to the technical field related to human-machine interaction control, and discloses a virtual fixture control method and system for robot-assisted joint replacement surgery, which comprises: (1) calculating the position, velocity, and force of the robot relative to each virtual fixture surface in real time, and calculating the tangent plane of the virtual fixture surface closest to the robot position and the curvature of the robot in the tangential velocity direction; (2) dividing the robot's area and impedance control mode based on the calculation results of step (1); (3) calculating the impedance control parameter change of the robot relative to each virtual fixture constraint surface and the controller acceleration output; (4) coupling the constraints of multiple virtual fixture surfaces, and determining the optimal acceleration output based on a quadratic programming algorithm, and then controlling the robot motion based on the obtained optimal acceleration output. The present invention improves the quality of surgery while optimizing the doctor's operating experience, greatly enhancing the virtual fixture constraint effect.

The utility model relates to the technical field of medical rehabilitation instruments, in particular to a joint surgery postoperative limb rehabilitation exercise device which comprises a fixing bottom plate, a fixing transverse rod extending in the length direction of the fixing bottom plate is arranged at the top of the fixing bottom plate and located in the middle, and a forward and reverse motor is installed at the front end of the fixing transverse rod. The output end of the forward and reverse motor penetrates through the interior of the fixed cross rod and is connected with a driving screw rod, the driving screw rod is sleeved with a screw rod sliding sleeve in a threaded mode, and a distance graduated scale is arranged at the position, located on one side of the fixed cross rod, of the top of the fixed bottom plate. And by controlling the moving distance of the foot, the moving angle of the knee joint is controlled, and the rehabilitation device is suitable for different patients or different rehabilitation stages of the patients.

The utility model relates to the technical field of medical instruments, and discloses a foot auxiliary device for a knee joint operation, which comprises a fixing clamp, a first straight rod piece, a first corner direction adjusting piece, a healthy foot bearing plate, a second corner direction adjusting piece and an affected foot palm center supporting piece which are connected in sequence, the fixing clamp is used for clamping and fixing the foot auxiliary device and an operating bed, the healthy foot bearing plate is suspended outside the operating bed and used for bearing healthy feet, and the affected foot palm center supporting piece is in lap joint with the upper side of the tail of the operating bed. Thus, the healthy foot can be stably placed on the healthy foot bearing plate, discomfort caused by suspension of the healthy foot is effectively avoided, the palm center of the affected foot can be supported on the affected foot palm center supporting piece, the buckling angle is kept, and operation of an operator is facilitated.

Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.

This utility model relates to the field of orthopedic positioning and guidance technology, specifically disclosing a positioning and guidance device for bone and joint surgery, including: an operating table, and further including: a drive assembly, which is disposed on one side of the operating table and is used to drive the device to move; a lifting assembly, which is disposed in the middle of the drive assembly and is used to adjust the position and height of the device, and a rotating assembly is disposed on the upper side of the lifting assembly. By running the drive assembly, the entire device can be moved, thereby facilitating the adjustment of the device's position. By providing the rotating assembly, the telescopic assembly can be rotated and adjusted according to the patient's condition, thereby driving the clamping assembly to rotate and adjust, and thus facilitating the positioning of the surgical instruments held by the clamping assembly to the patient's affected area. The telescopic assembly can extend the length of the device, thereby improving the device's flexibility.

The invention discloses a hip joint postoperative rehabilitation device, which belongs to the technical field of medical rehabilitation instruments and comprises a hip fixing component, a leg angle fixing component and a foot fixing component which are connected through elastic bands. The hip fixing assembly comprises a waistband piece and a fixing plate, a circle of flexible pad is arranged on the inner ring of the waistband piece, the fixing plate is arranged on one side of the waistband piece, and a buckle is arranged on the side, away from the waistband piece, of the fixing plate; the leg angle fixing group comprises a plurality of airbags, a controller and a fixing band, air pumps are arranged in the airbags, grooves are formed in the tops of the airbags, the fixing band is arranged at the tops of the grooves, and the controller can control the air pumps to supply air to the airbags; the foot fixing assembly comprises an outer wrapping piece, a plurality of air cushions are arranged in the outer wrapping piece, and the air cushions can be controlled through a controller; the hip joint opening and closing device can ensure that the hip joint of a patient after a hip joint operation is opened and closed to a required angle, meanwhile, the comfort of the patient in the rehabilitation period is ensured, and a better rehabilitation effect is achieved.

The utility model provides an anti-skidding medical pasting film for knee joint surgery, which comprises a pasting film main body, one side of the pasting film main body is provided with a fixing assembly, the fixing assembly comprises a fixing film, the left side and the right side of one side of the fixing film are respectively connected with a connecting film, the surface of the fixing film is transversely and longitudinally provided with a plurality of convex blocks, and the convex blocks are connected with the fixing film. The left side and the right side of the fixing film are connected with fixing belts, and one end of each fixing belt is connected with a bonding strip. According to the anti-skid medical pasting film for the knee joint operation, the fixing film with the multiple protruding blocks and the two connecting bands and the fixing bands with the bonding strips are arranged on one side of the medical pasting film, when the knee joint operation is carried out on a patient, the fixing film with the multiple protruding blocks can be bonded to the bottom of the foot of the patient, and therefore the patient can conveniently carry out the knee joint operation. When the legs of a patient are bent and placed on an operating bed for use, a protection effect can be achieved, and manual supporting operation of medical staff is reduced.

The invention relates to the technical field of medical instruments, in particular to a limb fixing frame for wrist-elbow arthroscopic surgery, which comprises a body and an extension part detachably connected with the body, the body comprises an arc-shaped supporting plate, a first connecting piece and a supporting rod, the supporting rod comprises a rod body and a Y-shaped bracket positioned at the top end of the rod body, and the Y-shaped bracket is hinged with the rod body; the first connecting piece is fixed between the bottom face of the arc-shaped supporting plate and the upper end face of the Y-shaped bracket, and the rod body is detachably combined with an operating bed. The device is simple and stable in structure, can be suitable for elbow joint surgery and wrist joint surgery, can flexibly adjust the inclination angle of the arc-shaped supporting plate for placing the arm, reserves a larger operation space for an arthroscope, and is suitable for a doctor in the internals to complete limb placement through operation by one person.

The application provides a hip joint surgery robot autonomous operation system, comprising: a skin cutting module, used for generating skin cutting instructions for hip joint surgery to instruct a surgery robot to perform skin cutting operation according to the skin cutting instructions; a grinding and filing module, used for generating grinding and filing instructions for hip joint surgery to instruct the surgery robot to perform grinding and filing operation according to the grinding and filing instructions; and a suturing module, used for generating suturing instructions for hip joint surgery to instruct the surgery robot to perform suturing operation according to the suturing instructions. The skin cutting instructions, the grinding and filing instructions and the suturing instructions can be generated to instruct the surgery robot to perform corresponding autonomous operation in hip joint surgery, thereby improving the surgery efficiency.

The present invention discloses a hip-knee integrated surgical robot and its alignment method, comprising a surgical instrument mounted at the end of a multi-degree-of-freedom robotic arm for controlling the motion path and speed of the surgical instrument; a medical image fusion module for receiving and processing image data from medical imaging equipment to construct a three-dimensional model of the hip joint and knee joint; an image alignment module for aligning the three-dimensional model with the real-time image during surgery; an optical tracking module for setting marking points, which are set on the surgical instrument. The optical tracking module obtains the position and posture of the surgical instrument in three-dimensional space in real time by tracking the marking points. The hip-knee integrated surgical robot system of the present invention is applied to hip and knee replacement or repair surgery to solve the problems of insufficient surgical accuracy, complicated and cumbersome operation, and long time consumption in current technology, and realizes the integration of hip and knee dual joint surgery, thereby significantly improving the accuracy, safety and efficiency of the surgery.

The present invention provides a method and system for reconstructing a cartilage surface, and an electronic device, comprising: obtaining an outer contour model of the bone cortex and a set of marking points of the cartilage surface, and transforming the outer contour model of the bone cortex and the set of marking points of the cartilage surface into a preset image coordinate system; obtaining the projection points of each marking point in the set of marking points of the cartilage surface on the outer contour of the bone cortex, and determining the coverage area of ​​the projection points; elastically stretching the coverage area of ​​the projection points to simulate the degree of wear on the cartilage surface to obtain a reconstructed cartilage surface; solving the problem that current joint replacement surgery does not incorporate the influence of cartilage into prosthesis planning, thereby causing wear of muscles or ligaments, and can provide practical and effective guidance when performing prosthesis planning and adjustment, which is more conducive to prosthesis planning and adjustment. The present invention greatly improves the intelligence, usability and reliability of prosthesis planning in joint replacement.

The present invention discloses a hip joint surgical robot based on three-dimensional scanning and image processing and a fast and accurate alignment method thereof, comprising a three-dimensional scanner, which is integratedly installed at the end of the hip joint surgical robot and is used to perform three-dimensional contour scanning of the inside of the acetabulum to generate three-dimensional image data; a central processing unit, which is tightly coupled with the three-dimensional scanner and is used to receive and analyze and process the three-dimensional image data in real time; an image processing module, which is configured to pre-process the three-dimensional image data obtained by the scan, identify and extract the bone structure, separate the bone structure contour in the acetabulum, and obtain bone structure information; the present invention can accurately distinguish between orthopedic flesh and soft tissue through the image processing module, eliminate the influence of soft tissue deformation on alignment accuracy, and achieve more accurate surgical instrument positioning and implant placement. The technical means of the present invention can not only improve the accuracy of surgical operations, but also reduce operation time, reduce the workload of doctors, and improve surgical safety.