270 results about "Bone model" patented technology

The invention provides a shoulder joint replacement surgery navigation system and method, and relates to the technical field of computers, and the system comprises a controller and a navigation positioning device; the controller is in communication connection with the navigation positioning device; the controller comprises a preoperative planning module, a preoperative simulation module and an intra-operative execution module. According to the navigation system and method for the shoulder joint replacement surgery, by combining the preoperative medical image of the affected bone and the medical image of the healthy bone corresponding to the affected bone, the healthy form of the affected bone can be reflected more accurately under the condition that the affected bone has bone defect and / or abnormal form, and then prosthesis planning can be conducted based on the three-dimensional bone model of the affected bone, so that the patient experience is improved. The preoperative surgical planning is more objective and quantified, the movement range of the shoulder joint on the operative side of the patient after the prosthesis to be implanted is implanted into the affected bone can be simulated based on the parameter information of the prosthesis to be implanted, the accuracy and rationality of the prosthesis planning are further improved, and the accuracy and reliability of the orthopedic surgery are remarkably improved.

The invention provides an orthopedic surgery navigation method, device and system, electronic equipment and a storage medium, and relates to the technical field of computers.The method comprises the steps that a three-dimensional bone model of a diseased bone is generated based on a first image and a second image, and surgery parameters corresponding to the diseased bone are obtained based on the three-dimensional bone model and all bony mark points on the three-dimensional bone model, on the basis of the corresponding relation between all the bony mark points on the three-dimensional bone model and all the bony mark points on the affected bone, the affected bone and the three-dimensional bone model are registered, the mapping relation between the affected bone and the three-dimensional bone model and / or the first image is established, and surgical navigation is conducted on the basis of the surgical parameters corresponding to the affected bone and the mapping relation. According to the orthopedic surgery navigation method, device and system, the electronic equipment and the storage medium provided by the invention, more objective and quantitative preoperative surgery planning can be realized under the condition that the diseased bone of the patient has bone defect and / or abnormal shape, and more accurate diseased bone space positioning can be realized in the orthopedic surgery.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

The invention provides a physical training posture correction method based on machine vision, which comprises the following steps: acquiring an athlete training image sequence through a multi-view image acquisition system and preprocessing the athlete training image sequence, extracting three-dimensional posture key points of a human body by utilizing a depth posture recognition model, constructing a skeleton model and calculating real-time kinematics characteristic parameters, and performing multi-dimensional comparison with standard parameters to generate a posture deviation evaluation report, thereby generating a personalized multi-modal correction feedback scheme, and establishing a personal athlete movement feature database to realize adaptive standard parameter optimization. According to the method, the training postures of athletes can be accurately recognized and corrected in real time, the training effect can be improved, sports injuries can be prevented, and training individuation and scientificity are improved.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

The invention discloses a skeleton model manufacturing method based on a 3D printing technology, and relates to the technical field of medical treatment, and the method comprises the steps: collecting the multi-modal image data of the skeleton of a patient, carrying out the image segmentation and reconstruction, and generating a digital three-dimensional model of the skeleton of the patient; carrying out mechanical optimization and material distribution adjustment on the digital three-dimensional model by utilizing a topological optimization algorithm, designing a bionic microstructure, and outputting a three-dimensional skeleton model subjected to optimization and bionic design; the bone model which is detected to be qualified is used for generating a personalized mold, and a prosthesis which is completely matched with the bone of the patient is customized through the mold; preoperative simulation and design of a prosthesis implantation scheme are carried out based on the skeleton model, and a personalized prosthesis and an operation scheme matched with the skeleton of the patient are obtained; the structural rigidity is maximized and the material consumption is minimized by utilizing a topological optimization algorithm, so that the bone model can better meet the biomechanical requirements of a patient, and meanwhile, the bionic characteristics and mechanical properties of the model are enhanced through the bionic microstructure design.

A computer-implemented method of pre-operatively evaluating bone structure for use of a bone graft in a surgical procedure can comprise generating a three-dimensional bone model of a bone of a patient for output in a video display unit, determining a volume of interest (VOI) on the three-dimensional bone model where a bone defect exists, adding an internal bone property for bone matter of the bone structure to the three-dimensional bone model at the volume of interest, analyzing the internal bone property in the volume of interest relative to a treatment for a bone defect, and outputting indicia on the video display unit that indicates utility of a bone graft for the treatment. A surgical planning system can comprise memory having instructions for implementing the computer-implemented method.

The invention relates to the technical field of orthopedic surgery, in particular to a system for automatically planning a screw channel range, which comprises a medical image acquisition module used for receiving and preprocessing CT, MRI and other medical images from medical equipment; the three-dimensional reconstruction module is used for performing three-dimensional reconstruction on the preprocessed two-dimensional medical image to generate a three-dimensional skeleton model; the multi-constraint path planning module is used for planning a candidate path set meeting anatomical and mechanical constraints in the three-dimensional skeleton model; the parameter calculation module is used for calculating path information of the candidate path set; and the visualization module draws a screw channel based on the path information and displays related parameters. The method has the advantages that the candidate path set meeting various anatomy and mechanical constraints can be planned in the three-dimensional skeleton model, the path length and the path included angle are calculated according to the candidate path set, the screw channel is drawn based on the path information, and the accuracy and safety of surgical planning are improved.

The invention provides a method for acquiring a three-dimensional model of an ankle skeleton of a human body by simulating load-bearing CT scanning. The method comprises the following steps: acquiring CT scanning data; uploading the CT scanning data to medical image processing and three-dimensional reconstruction software to obtain an initial scanning image; constructing a three-dimensional model according to the initial scanning image; and carrying out model verification on the three-dimensional model to obtain a skeleton three-dimensional model. According to the method, the high-resolution three-dimensional model of the ankle skeleton can be obtained, and reliable support is provided for medical research, clinical diagnosis and treatment of the ankle and research and development of medical instruments. Compared with a traditional method, the data obtained by simulating the load is more practical, the model quality is remarkably improved through the advanced technology and algorithm, and development of related research and application in the medical field is promoted.

The invention relates to the field of rehabilitation management, and discloses an orthopedic patient rehabilitation process tracking system comprising a patient data acquisition module used for acquiring joint motion parameters and three-dimensional skeleton point cloud data of an orthopedic patient; the muscle model building module is used for building a skeleton model of the orthopedic patient, defining skeleton degree-of-freedom motion of the skeleton model and building a specific skeleton-muscle model; the monitoring network construction module is used for determining a distributed flexible strain sensor and an epidermal electrode of the orthopedic patient, defining an ad hoc network protocol of the distributed flexible strain sensor and the epidermal electrode, and constructing a flexible electronic monitoring network; the monitoring network data acquisition module is used for monitoring local muscle electrical activity and mechanical stress distribution of the orthopedic patient; and the rehabilitation process tracking module is used for executing rehabilitation process tracking of the orthopedic patient after analyzing a function recovery curve of the orthopedic patient by using the joint contact force and the ligament strain energy. The evaluation accuracy of the rehabilitation process of the patient can be improved.

The invention provides an automatic adjustment method for a pigtail wishbone cutting path. The method comprises the following steps that a three-dimensional segmentation curved surface model and a three-dimensional skeleton model of a pigtail wishbone are obtained; performing layer-by-layer extraction on the three-dimensional segmentation curved surface model to generate a corresponding rough cutting path; registering the three-dimensional skeleton model with the real-time point cloud data to obtain integral three-dimensional information of the pigtail wishbone structure, and then obtaining registered skeleton model points; obtaining obstacles encountered by the rough cutting path according to the relative relation between the skeleton model points and the rough cutting path; avoiding an obstacle through path offset, and forming an offset path; smoothing the offset path to obtain a smooth offset path; fusing and smoothing all the smooth offset paths to obtain a complete offset path; and the complete offset path and the rough cutting path are fused to obtain a final cutting path, so that the efficiency and precision of the automatic deboning process are remarkably improved.

An apparatus, system, and method are disclosed for remediating a condition present in a patient. In some implementations, a resection guide includes a first resection feature that guides a cutting tool to form a first osteotomy in a bone, the first resection feature extends along a first trajectory. A second resection feature guides a cutting tool to form a second osteotomy in the bone, the second resection feature extends along a second trajectory. A third resection feature guides a cutting tool to form a third osteotomy in the bone, the third resection feature extends along a third trajectory. At least one of the trajectories is determined based on a bone model of a portion of the bone, which bone model is based on medical imaging of the patient's foot. The device also includes a bone attachment feature to secure the resection guide to the bone.

The invention relates to the technical field of image simulation modeling, in particular to a medical instrument visual simulation method based on data recognition. The method comprises the following steps: carrying out rotation angle calibration on a medical instrument, and carrying out rotation angle X-ray projection data acquisition to obtain multi-view projection image sequence data; performing three-dimensional skeleton model optimization according to the multi-view projection image sequence data to generate an optimized skeleton scanning three-dimensional model; performing potential fracture probability processing on the multi-view projection image sequence data based on the optimized skeleton scanning three-dimensional model to generate potential fracture probability data; and carrying out fracture area marking on the optimized bone scanning three-dimensional model through the potential fracture probability data, and carrying out part stress analogue simulation to obtain a three-dimensional visual fracture report. According to the method, accurate marking of the fracture area and visual report generation are realized through reconstruction of the three-dimensional space model of the scanned image, and the accuracy and efficiency of fracture detection are remarkably improved.

The invention discloses an orthopedic science popularization recommendation system based on smart health, and belongs to the technical field of smart health. Through the immersive interaction module, the user can check and interact in the virtual environment, the health state of the bone and the influence of movement on the bone are known in real time, through dynamic display of the personalized bone model, the user can more visually understand the bone health of the user, and the user experience is improved. The intelligent recommendation module identifies interest points and health requirements of the user by collecting behavior data of the user in the immersive interaction module, pushes personalized orthopedic knowledge content based on the interest points and the health requirements, and helps the user to obtain targeted health suggestions and popular science knowledge, so that the accuracy and effectiveness of health management are improved, and the user experience is improved. The health awareness and long-term attention of the user are improved by enhancing the sense of participation and the education effect of the user, and the user is ensured to obtain health knowledge most relevant to the own condition by analyzing the behavior data and the health condition of the user and pushing the content matched with the health requirement of the user.

A method and system are disclosed to assist in proper alignment of a cutting guide relative to a bone in preparation for a joint implant. Separately, or in combination with the cutting guide alignment, the planarity of a cut surface is measured, in order to modify the cut surface prior to mounting an implant on the bone. Location feedback of a digitizer tip relative to a bone coupled cutting guide is used to determine the position and orientation (POSE) of a cut plane to be formed on the bone using a cutting device in conjunction with the guide slot(s) of the cutting guide. The POSE of the digitizer is determined using a tracking system. The POSE of the determined cut plane overlaid on a bone model and compared to the POSE of a planned cut plane better positions the cutting guide prior to actual bone cuts using the cutting guide.

The invention relates to the technical field, in particular to a skeletal animation display method which comprises the steps of creating a static model based on a modeling tool, adjusting topological structures of high and low density areas of joints, verifying the symmetry of the model and correcting and optimizing the model. Establishing a skeleton hierarchy and a father-child skeleton chain based on the model; associating model vertexes to a skeleton system to establish an influence relationship, and optimizing weight parameters; the posture of the skeleton at different time points is defined by setting a key frame, and the animation effect is achieved; and ensuring that the animation basic logic is correct, and testing the motion state characteristics of the skeleton model. According to the skeleton animation display method and device, the equipment and the storage medium, the vertex density of the joint area is adjusted, symmetry processing is carried out, and weight gradual change processing and weight normalization verification are provided, so that the problem that a skeleton model is easy to tear, deform and distort in the animation can be solved; and meanwhile, a skeleton chain hierarchical structure is constructed, and the adaptability of a skeleton system and the model is further enhanced based on an IK controller.

The invention provides a method and a system for generating a skeleton by matching animation data, and belongs to the technical field of animation character construction. Comprising the following steps that S1, biological skeletons of a role are established, and the biological skeletons at different positions have unique codes and the same initial length but are not completely the same in shape; s2, constructing a complete skeleton model; s3, adjusting the length of each biological skeleton according to the height of the role and whether the next section of adjacent biological skeleton exists or not; and S4, according to the pose matrix of the corresponding biological skeleton in each frame of character animation data, the animation data uses the same coding mode as the biological skeleton, the corresponding biological skeleton in the skeleton model is adjusted to the corresponding position, and a biological skeleton image of each frame is generated. According to the method, a certain number of biological skeletons are preset and sequentially coded, the number and the positions of the biological skeletons are adjusted according to the body type, the biological skeleton combination structure conforming to the character image is constructed, and the skeleton animation file of the character is further obtained.

The invention discloses a manufacturing method of a 3D printing guide plate for a cervical vertebra single-door operation, and relates to the technical field of crossing of medical auxiliary instruments and additive manufacturing. Firstly, a cervical vertebra CT data three-dimensional reconstruction skeleton model is obtained, an operation scheme is virtually planned, then a navigation template digital prototype is generated through parameterization, finite element simulation optimization is carried out, and a three-dimensional 3D printing guide plate for the cervical vertebra single-door operation is obtained. Printing with the biocompatible resin by using light curing equipment, and finally treating to obtain a final product. According to the method, a high-precision cervical vertebra skeleton model is generated through CT thin-layer scanning and three-dimensional reconstruction, parameters of a hinge area, a door opening groove line and a nail path are determined through virtual planning, and the problem that damage or positioning deviation is easily caused due to the fact that a traditional operation depends on experience is solved; constructing a navigation template attaching curved surface by a specific algorithm, reserving a soft tissue compensation gap, matching with a hollow window bulge to limit the depth of an abrasion drill, controlling the deformation of a guide plate through finite element simulation and topological optimization, selecting specific resin to ensure the stability, ensuring the suitability by virtue of virtual registration and standardized manufacturing, and improving the accuracy, safety and efficiency of an operation.

The present invention relates to a method and an apparatus for planning a cutting path of a surgical robot. The method for planning a cutting path of a surgical robot, according to the present invention, comprises the step of: identifying implant planning information, including the planned implant placement position and orientation, with respect to a virtual bone model corresponding to a surgical target bone; generating a cut surface of the bone model on the basis of the implant planning information; selecting a standard cutting path corresponding to the cut surface of the bone model from among one or more standard cutting paths pre-stored in a computing device; and generating a corrected cutting path by correcting the selected standard cutting path on the basis of the outer line of the cutting surface. Therefore, a patient-customized cutting path can be quickly planned on the basis of the pre-stored standard cutting paths.

Aspects of the present disclosure relate to systems and methods for performing operations including: receiving a plurality of bone scaling factors, each bone scaling factor corresponding to a respective bone of a bone model; receiving a plurality of joint angle factors that jointly define a pose of the bone model; generating a bone model based on the received bone scaling factors and the received joint angle factors; generating a base surface based on the plurality of bone scaling factors; generating an identity surface by deforming the base surface; and generating a 3D body model by mapping the identity surface to the posed bone model.

The invention relates to the technical field of orthopedic surgery, and discloses a positioning method for orthopedic surgery, which comprises the following steps: step 1, acquiring image data: acquiring image data of legs of a patient by using CT (Computed Tomography) and MRI (Magnetic Resonance Imaging) equipment; step 2, three-dimensional modeling: generating a three-dimensional skeleton model of the legs of the patient based on the image data; 3, preoperative planning, wherein a preoperative operation path is planned on software according to the three-dimensional model. According to the positioning method for the orthopedic surgery, image data are obtained through CT and MRI equipment, three-dimensional modeling is carried out, the leg skeleton structure of a patient can be accurately presented, an accurate basis is provided for surgical path planning, optical positioning and electromagnetic positioning technology registration, mechanical arm navigation and real-time monitoring adjustment are utilized in the surgery, and the positioning accuracy is improved. And the problem of positioning deviation caused by the experience of medical staff and a simple fixing device traditionally is effectively avoided, and correct alignment of surgical parts is ensured.

The invention discloses an intelligent process automatic regulation and control method for orthopedic treatment. The method comprises the following steps: S100, acquiring a multi-dimensional data set of a patient; s200, generating a treatment strategy set based on the multi-dimensional data set; the step S200 comprises the following sub-steps: S201, inputting the three-dimensional skeleton model into a deep learning network for pathological feature extraction, and obtaining skeleton defect region positioning and generating a dynamic strategy; and S202, generating a treatment strategy set and performing priority management. Compared with the prior art, the method has the following advantages and effects that various data of the patient are collected and processed, the personalized treatment strategy is generated, bone defects and cross-layer injuries can be efficiently recognized, dynamic risk assessment and treatment strategy optimization are carried out, and therefore the accuracy and effectiveness of orthopedic treatment are improved.

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.

Aspects of the present invention relate to a control system (1) for identifying at least a first activity performed by a person of interest (POI-n). The control system (1) includes a controller having a processor (20) and a system memory (26). The controller (13) is configured to receive image data (DIMG1, DIMG2) from at least one imaging device (C1, C2). The image data (DIMG1, DIMG2) includes at least one image frame representing an image scene including at least a portion of a person of interest (POI-n). The image data (DIMG1, DIMG2) is analysed to identify a skeletal model (15) of the at least a portion of the person of interest (POI-n); and at least one object of interest (OOI-n) with which the person of interest (POI-n) is interacting. The first activity being performed by the person of interest (POI-n) is identified in dependence on the skeletal model (15) and the identified object of interest (OOI-n). The present invention relates to a related method of identifying an activity being performed by a person of interest (POI-n). The present invention also relates to computer software and a non-transitory, computer-readable storage medium storing instructions thereon.

The invention discloses an isolator for establishing a bone nonunion animal model and a preparation method of the isolator, and relates to the technical field of medical instruments, and the preparation method comprises the following steps: step 1, obtaining a hydrogen-containing silicone oil prepolymer with a side chain containing Si-H bonds; 2, obtaining a silica gel macromonomer with an epoxy group on a side chain; step 3, obtaining an anti-inflammatory functionalized silica gel macromonomer; 4, reconstructing the skeleton model in a three-dimensional manner, and creating a defect isolator model; 5, adding the anti-inflammatory functionalized silica gel macromonomer obtained in the step 3 and a reactive diluent into a mixing tank, adding a cross-linking agent and polyether modified polydimethylsiloxane under mechanical stirring, stirring for 30 minutes, defoaming for 2 hours under 500Pa vacuum, and standing and curing in a darkroom after defoaming; and 6, a multi-material-box DLP photocuring 3D printer is adopted for isolator printing. According to the method, observation interference on the bone nonunion pathological process is fundamentally reduced, and high-fidelity modeling construction is achieved.

The invention provides a method for designing an osteotomy surface of an osteotomy guide plate, which belongs to the field of medical instruments and comprises the following steps of: establishing an xoz coordinate system in a sagittal view image on a three-dimensional bone model, and establishing a yoz coordinate system in a coronal view image on the three-dimensional bone model; in the three-dimensional coordinate system, on the basis that the highest point of the normal tibia part is a point P1, the osteotomy surface S1 passes through the point P1 and is parallel to the xoy surface, the spatial position of the osteotomy surface S1 in the three-dimensional coordinate system is obtained; an osteotomy line L1 is determined in a sagittal image, an osteotomy line L2 is determined in a coronal image, and the spatial position of an osteotomy surface S2 in a three-dimensional coordinate system is obtained based on the osteotomy line L1 and the osteotomy line L2; the first osteotomy surface and the second osteotomy surface of the osteotomy guide plate are set according to the 3D printing technology in combination with the relative position relation of the osteotomy surface S1 and the osteotomy surface S2, the osteotomy guide plate is obtained, the osteotomy guide plate is designed according to the osteotomy plane equation, and operation errors are reduced.

Methods, systems, and devices for treating osteochondral defects (OCDs) are disclosed. The disclosed methods and systems include collecting joint surface data using image-free methods, generating a three-dimensional (3D) healthy bone model based on the joint surface data and a database of healthy bone anatomies, defining the OCD boundary on the joint, generating a 3D implant model based on the 3D healthy bone model and the OCD boundary, manufacturing an implant based on the 3D implant model, generating an implantation plan, the resected cavity on the joint. The implant includes a 3D-printed titanium alloy substrate having a first and second porous layer separated by a nonporous layer. A polymer material is over-molded onto the second porous layer and treated to exhibit properties that mimic cartilage, while the first porous layer allows the implant to fuse to patient bone.

A method includes displaying, on a graphical user interface, a planned position of a virtual implant model relative to a virtual bone model of a bone. The virtual implant model includes a plurality of virtual screw holes offset from a central axis of the virtual implant model. The method also includes determining a planned rotational orientation of the virtual implant model by rotating, on the graphical user interface, the virtual implant model about the central axis of the virtual implant model such that the plurality of virtual screw holes rotate about the central axis. The method also includes controlling a robotic device to guide preparation of the bone to receive a physical implant in the planned position. The method also includes providing computer-assisted navigation configured to guide the physical implant into physical rotational alignment with the planned rotational orientation of the virtual implant model.