156 results about "Joints surgery" patented technology

Disclosed is an actuator for hip replacement, which is configured to prepare a space for installing a prosthesis on a bone and implanting the prosthesis. The actuator includes a first actuator and a second actuator. The first actuator is configured to connect a cutting tool to process an acetabulum and / or a medullary cavity, and the first actuator has a first connector and a second connector. The second actuator is configured to connect to the second connector of the first actuator during an operation of implantation of the prosthesis is performed, and connect the prosthesis and receive impact produced during installing the prosthesis. The actuator for the hip replacement is configured to be installed to a robotic arm via the first connector. During the hip joint surgery, when the acetabulum and the medullary cavity are prepared, the robotic arm is connected to the first actuator. When it is necessary to install the prosthesis, the second actuator is connected to the first actuator. By the above configuration, the operation of actuator replacement is capable to be reduced, thereby facilitating completing the hip replacement surgery.

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.

The utility model relates to the field of medical auxiliary instruments. A shoulder joint operation drilling positioning device comprises a guide part, the guide part comprises a hollow guide rod and a positioning transverse guide rod which are sequentially connected, an operation channel used for building a drilling channel is formed in the hollow guide rod, and the positioning transverse guide rod is connected with the area, located above the operation channel, of the hollow guide rod; the guide direction of the operation channel is parallel to the length direction of the positioning transverse guide rod; the positioning piece comprises a baffle plate and a connecting handle which are connected with each other; a guide groove for embedding the positioning transverse guide rod and guiding the positioning transverse guide rod to slide is formed in the top of the baffle, and an opening is formed in the upper end of the guide groove; when the positioning transverse guide rod is located on the guide groove, the operation channel right faces the baffle. According to the utility model, the positioning transverse guide rod guided by the guide groove is embedded into the positioning transverse guide rod, so that a drilled bone tunnel is ensured to be parallel to the surface of an original glenoid cavity, the upper edge of a coracoid graft is recovered to the original height of the defective glenoid cavity, and the stability of a humeral head in the glenoid cavity after operation is ensured.

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 invention relates to the technical field of sports medicine, and provides a joint surgery postoperative recovery training device and method for sports medicine, and the joint surgery postoperative recovery training device for sports medicine comprises a supporting part which is provided with a placing part used for supporting the legs of a user, and the supporting part is provided with a supporting containing space; the rotating part is positioned in the supporting and accommodating space and is arranged on the supporting part; and a plurality of moving parts, each moving part comprises a rotating mechanism and a moving mechanism, the rotating mechanisms are located in the supporting and containing space and arranged on the rotating parts, and the moving mechanisms are partially located in the supporting and containing space and movably arranged on the rotating mechanisms. According to the joint surgery postoperative recovery training device for sports medicine, the technical problem that the recovery effect is poor due to the fact that the training mode of the joint surgery postoperative recovery training device for sports medicine is single in the prior art can be solved.

The utility model provides a guiding device for joint surgery and a surgical robot. The guiding device for the joint surgery comprises a connecting rod, the connecting rod is provided with a first end and a second end, the second end is the opposite end of the first end, the first end is provided with a connector used for being connected with a first power device or a robot arm, and the second end is provided with a first guiding hole and a first guiding groove; the first guide hole is used for guiding the first execution piece, the first guide groove is used for guiding the saw blade, the first execution piece is a rotary execution piece, and the first execution piece and / or the saw blade are / is execution pieces of a second power device. According to the embodiment of the invention, combined osteotomy of various power devices can be realized, and the operation time is shortened.

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.

The invention relates to the technical field of medical instruments, and discloses an auxiliary device for joint replacement surgery, which comprises a screw limiting type clamping mechanism and a screw length adjusting mechanism. The auxiliary device for the joint replacement surgery can be clamped on the surface of a mattress according to actual conditions, so that the wide range of use conditions is achieved, in addition, the device controls the specific flexion angle of a knee joint by controlling the distance between the ankle and the waist of a patient, the angle is adjustable and controllable, and the use effect is good. Therefore, stability of the lower limbs of the patient is guaranteed, and manpower resources are saved.

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 relates to the field of medical auxiliary instruments, in particular to an auxiliary device for orthopedic joint replacement surgery, comprising a bottom frame, an upper frame slidably arranged on the bottom frame, a placement table slidably arranged on the upper frame, a cushion mounted on the placement table, a lifting mechanism arranged between the bottom frame and the upper frame, and a support mechanism rotatably arranged at the right part of the upper frame. Personalized adjustment can be carried out according to the body structure characteristics of different patients. The lifting mechanism allows the height of the placing table to be adjusted according to the specific condition of a patient to reach the optimal operation position, the supporting mechanism can flexibly support the limb part except the joint of the patient, the stability of the limb in the operation process is guaranteed, the convenience and precision of the operation operation are improved, and the operation efficiency is improved. And the adaptability of the device to different types of patients is enhanced, so that the patients with larger or smaller body types can be properly supported, the surgical risk is reduced, and the comfort level of the patients and the surgical success rate are improved.

The utility model discloses cutting positioning equipment for orthopedic joint surgery, which comprises a base plate, grooves are arranged on two sides of the top of the base plate, screw rods are movably connected with inner cavities of the grooves, movable plates are in threaded connection with the surfaces of the screw rods, and damping sleeves are fixedly connected with one sides of the inner cavities of the grooves. Through the arrangement of the base plate, the groove, the screw rod, the movable plate, the damping sleeve, the hand wheel, the connecting frame, the clamping plates, the soft cushion, the fixing plate, the positioning shell, the adjusting plate and the bolt, the leg of a patient with joint diseases is placed on the skin care pad, the screw rod is rotated to drive the movable plate to move, the movable plate drives the two clamping plates to get close to each other, and then the leg is fixed. The clamping plate drives the soft cushion to move to one side of the soft cushion to make contact with and clamp the surface of the leg of the joint disease patient, then the bolt is rotated until one end of the bolt is transmitted into the insertion hole in the surface of the adjusting plate, and the joint parts of the patients with different body types can be clamped and positioned in the positioning mode.