298 results about "Preoperative planning" patented technology

The invention relates to the technical field of medical image processing, in particular to an artificial intelligence assisted intraoperative imaging method, which comprises the following steps: S1, preprocessing a multi-modal medical image, segmenting and recognizing an anatomical structure by a deep learning model according to the preprocessed image, measuring anatomical parameters based on a segmentation and recognition result, and generating an operation planning path by artificial intelligence according to the anatomical parameters; s2, collecting a C-shaped arm perspective image stream in real time, dynamically tracking space coordinates of a surgical instrument, comparing the position of the instrument with a surgical planned path, calculating offset, and when the offset is greater than an offset threshold, outputting correction guidance through an AR superposition layer; and S3, monitoring an image quality index in real time, dynamically adjusting exposure parameters through a reinforcement learning model, and when a metal implant is detected, switching a dual-energy-spectrum mode and executing an artifact suppression algorithm. According to the method, preoperative precise planning and intraoperative assistance are realized through artificial intelligence, the problems of poor image quality and high radiation risk are solved through technical optimization, and the method has important clinical application value.

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 embodiment of the invention discloses a surgical robot planning navigation method, device and equipment and a storage medium, and the method comprises the steps: determining a three-dimensional model of a to-be-operated region of a target object, and determining a reference moving path based on a part interaction instruction for a target part in the three-dimensional model; acquiring a robot operation instruction, and controlling a target surgical robot to move based on the surgical robot operation instruction; and under the condition that the target surgical robot abnormally moves, correcting the moving path of the target surgical robot based on the reference moving path. According to the technical scheme, the safety problem that in the prior art, when the surgical robot is operated, other tissues are likely to be touched by mistake is solved, the reference moving path can be determined through preoperative planning on the basis of the interaction instruction, the abnormal action of the surgical robot is subsequently corrected on the basis of the reference moving path, and the operation efficiency is improved. Damage to surrounding tissues in an operation is reduced, and operation safety is improved.

The invention provides a unicompartmental knee arthroplasty robot navigation and positioning system and method. The system comprises a preoperative planning module, a positioning and navigation module and a mechanical arm control module. The preoperative planning module is used for carrying out knee joint segmentation and reconstruction according to the obtained knee joint medical image, carrying out preoperative planning and determining a unicompartmental knee arthroplasty scheme; the positioning navigation module is used for registering the intraoperative solid knee joint and the preoperative knee joint three-dimensional model according to the navigator and the tracer, and tracking the poses of the osteotomy tool and the solid knee joint in real time; and the mechanical arm control module is used for planning a motion path of the mechanical arm and controlling the mechanical arm to execute the motion path. In this way, the mechanical arm can be controlled to assist in completing the osteotomy operation of unicompartmental knee arthroplasty in a preoperative planning and intraoperative optical navigation mode, and the problems that the operation level is uneven and the operation effect is not expected due to different individuals in the current manual operation are solved.

The invention discloses a virtual reality-based heart three-dimensional model construction and operation simulation guidance system. The system comprises a heart data acquisition module, a heart simulation module and a virtual operation module. A dynamic heart simulation model is constructed through a multi-modal medical data fusion technology, electro-mechanical two-way coupled heart motion simulation is achieved, and an immersive surgery scene is generated in combination with a virtual surgery interaction mechanism. The data acquisition module integrates electrocardiogram, image and physical data to form a database; the heart simulation module generates a dynamic heart model through time-frequency domain analysis, finite element modeling and a time-space coupling algorithm; and the virtual operation module supports real-time instrument operation feedback and operation effect prediction. The system can assist doctors in preoperative planning, intraoperative guidance and postoperative evaluation, and the accuracy and safety of cardiac surgery are improved.

An orthopedic surgical robot system (100) and an orthopedic surgical robot operating method. The system comprises: a preoperative planning module (101) for acquiring image data of a surgical site, reconstructing a three-dimensional model of the surgical site on the basis of the image data, and determining a preoperative planning result on the basis of the three-dimensional model; a control module (102) for acquiring the preoperative planning result, and on the basis of the preoperative planning result, controlling a navigator (103) and a robotic arm (104) to perform surgical registration, alignment, and surgical operations; and an evaluation module (105) for performing post-operative evaluation on the surgical site after the surgical operation. The orthopedic surgical robot system (100) can improve the degree of integration of an orthopedic surgical robot, and is applied to different orthopedic surgical scenes.

The invention provides a joint reconstruction full-dimensional operation planning method, system and device based on anatomy biomechanical kinematics and a computer readable storage medium. The method comprises the following steps: acquiring a hip joint CT image of a patient; performing three-dimensional reconstruction based on the hip joint CT image to obtain a hip joint three-dimensional model; performing preoperative planning based on the hip joint three-dimensional model to obtain an initial preoperative planning scheme; after a simulation operation is carried out according to the initial preoperative planning scheme, postoperative motion simulation is carried out on the hip joint femur and the hip joint pelvis, and whether the corresponding normal joint motion range can be reached or not through various motion simulation is judged; and if at least one motion simulation cannot reach the corresponding normal joint motion range, adjusting the initial preoperative planning scheme to obtain a final preoperative planning scheme. According to the embodiment of the invention, preoperative planning can be more accurately carried out.

A preoperative planning method and system for vascular intervention. The method comprises: acquiring a vascular lesion image of a patient (100); performing image segmentation on the vascular lesion image to obtain a plurality of two-dimensional images (200), the plurality of two-dimensional images corresponding to a plurality of different tissues or structures; generating lesion three-dimensional data on the basis of the plurality of two-dimensional images (300); generating a vascular interventional surgical plan on the basis of the lesion three-dimensional data and surgical instrument parameters (400), the vascular interventional surgical plan comprising surgical instrument models, a use order and an instrument path; making a lesion simulation model on the basis of the lesion three-dimensional data (500); and performing in-vitro practice or actual surgery on the basis of the vascular interventional surgical plan and the lesion simulation model, and learning and adjusting the vascular interventional surgical plan in real time on the basis of an in-vitro practice result or an actual surgical condition (600). Thus, a surgeon can fully know the condition of a patient's lesion before surgery, thereby improving the accuracy of a vascular interventional surgical plan, and further improving the safety of surgery.

The invention provides a tibial prosthesis preoperative planning method and device, electronic equipment and a storage medium, a tibial condyle region point set is obtained by combining an operative side condyle region point set and a normal condyle region point set, a tibial coordinate system is constructed according to the tibial condyle region point set, a final reference point of a prosthesis posture is calculated in the tibial coordinate system, and the final reference point of the prosthesis posture is calculated according to the final reference point. The method comprises the following steps: acquiring a final reference point of a prosthesis posture, calculating the size of an operation-side condyle prosthesis region according to the final reference point of the prosthesis posture, and matching an optimal prosthesis body size and an optimal mounting posture according to the size of the operation-side condyle prosthesis region, so that feature information of a normal condyle is effectively utilized to assist in modeling, a more reasonable tibia coordinate system is constructed, and the accuracy of the model is improved. And the accuracy of prosthesis type matching and prosthesis posture planning is improved.

The invention relates to a myocardial resection area determination method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a heart scanning image, and determining a heart three-dimensional model according to the heart scanning image; determining a heart short-axis section and a heart long-axis section according to the heart three-dimensional model; the clock direction angle of the scalpel is determined on the short axis section of the heart; based on the clock direction angle, the excision depth of the scalpel is determined on the long-axis section of the heart; and performing myocardial resection on the heart three-dimensional model according to the clock direction angle and the resection depth through a scalpel model, determining an updated three-dimensional model after myocardial resection, and marking a resection area on the updated three-dimensional model. According to the scheme, accurate preoperative planning guidance and comprehensive heart structure information presentation are provided for the myocardial rotary cutting operation, and therefore the accuracy and safety of the myocardial rotary cutting operation are improved.

The invention provides an implant immediate denture precise manufacturing system based on preoperative planning and three-dimensional registration. An example method includes obtaining first oral data, the first oral data including three-dimensional data of a denture model and three-dimensional data of a marker; acquiring second oral cavity data, wherein the second oral cavity data comprises scanning data of a plurality of bases fixed in the oral cavity and a marker; registering the first scanning data and the second scanning data based on the matching of the three-dimensional data of the marker and the scanning data of the marker; a denture model to be processed is generated based on a result of the registration, the denture model to be processed comprising three-dimensional data of the denture model and positioning information of a plurality of holes, each hole being for accommodating one of the plurality of abutment. According to the embodiment of the invention, the accurate positioning of the false tooth model and the abutment is realized by using a digital technology, the accurate matching of the false tooth and the abutment is ensured, and the comfort and experience of a dental implant patient are improved.

The invention provides a multi-disease artificial intelligence preoperative planning system for the whole orthopedics department, and the system comprises an importing module which is used for importing medical image data; the three-dimensional reconstruction module is used for establishing a corresponding three-dimensional image model according to the medical image data; the skeleton segmentation module is used for segmenting skeletons in the medical image data; and at least three of the following modules: a hip joint simulation module; a knee joint simulation module; a spine joint simulation module; a sports medicine simulation module; and a trauma operation simulation module. According to the pre-operation planning system, the multiple operation simulation modules are arranged and correspond to different types of orthopedic operations, and therefore the coverage range of the pre-operation planning system is greatly enlarged.

The invention discloses a thoracoscope-assisted intelligent navigation system and method for thoracic surgery, and the method comprises the steps: recording the respiratory capacity of a patient and shooting a focus image in a breathing state, precisely calculating the position change amplitude and range of a focus in a breathing process, and drawing a dynamic graph for visual presentation; selecting an electromagnetic navigation system positioning method and performing preoperative planning according to lesion characteristics and positions, and adopting a transbronchial or transthoracic navigation positioning technology; wherein different anatomical regions of a human body are divided according to the focus position and the anatomical structure, a navigation path algorithm is planned for each anatomical region, parameters of the electromagnetic navigation system are adjusted according to the characteristics of tissues passed by the navigation path, and final positioning is confirmed; the television is combined with the thoracoscope to assist the thoracoscope, so that the focus is accurately marked and cut off; according to the method, the safety and success rate of the operation are improved, operation wounds are reduced, better treatment effect and experience are brought to patients, and the method conforms to the development trend of precision and intelligence of the medical technology.

The invention discloses a spatial registration and image fusion method for deep learning based on SS-OCT and TOF data, relates to the technical field of multi-modal medical image processing, and aims to improve alignment and fusion effects based on SS-OCT and TOF blood vessel data. According to the method, firstly, blood vessel features are enhanced through preprocessing, precise registration and fusion of cross-modal data are achieved by combining high-resolution two-dimensional tomography of SS-OCT and three-dimensional blood vessel form data of TOF and utilizing an improved SIFT algorithm and a cross attention Transformer model, and finally a high-precision three-dimensional blood vessel model is generated and can be used for treating cerebrovascular diseases (such as cerebrovascular diseases). Image support with details and a global structure is provided for preoperative planning and intraoperative navigation of a patient (such as aneurysm and stenosis), and the accuracy of diagnosis and treatment is remarkably improved.