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74 results about "Intraoperative navigation" patented technology
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Training method of CT and DSA real-time automatic fusion registration system for structural heart disease intervention and storage medium
The invention provides a training method of a CT and DSA real-time automatic fusion registration system for structural heart disease intervention and a storage medium. The training method comprises the following steps: establishing a registration system data set; establishing an initial registration system; based on the registration system data set, training an initial registration system to obtain a trained CT and DSA intraoperative registration system; and inputting the preoperative CT image data and the intraoperative real-time DSA image data of the person to be identified into the trained CT and DSA intraoperative registration system to obtain an intraoperative real-time fusion navigation image and intraoperative risk graphical prompt information. According to the method, cross-modal and cross-time-point dynamic registration can be realized, higher-precision intraoperative navigation support is provided for structural heart disease intervention, the operation safety is improved, and radiation exposure is reduced.
Owner:RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Human-derived hysteromyoma targeting peptide and application thereof
PendingCN121851110ALuminescence/biological staining preparationBiological material analysisImmunogenicityPhage Display Techniques
The invention discloses a human-derived hysteromyoma targeting peptide and application thereof, the sequence of the targeting peptide is selected from SEQ ID NO: 1 to SEQ ID NO: 5, and the SEQ ID NO: 1 (VN12) is the most preferable. The fusion protein is obtained by screening through a phage display technology, and has high hysteromyoma targeting specificity and low immunogenicity. The targeting peptide can be coupled with nuclide or fluorescent dye, and is used for accurate PET imaging, fluorescent diagnosis and intraoperative navigation of hysteromyoma. Experiments prove that the molecular marker is specifically enriched in tumor tissues (the tumor / muscle ratio is 60), the biological safety is good, the problems of insufficient diagnosis sensitivity and large treatment wound in the prior art are solved, and the molecular marker has a great application prospect in diagnosis and treatment of hysteromyoma.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Calibration device for intraoperative navigation switching
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
A method for simulating the stress distribution of a heart valve and perivalvular tissue by a guide wire
The present application relates to the technical field of medical devices, and discloses a method for simulating stress distribution of a guide wire on a heart valve and perivalvular tissue, comprising: obtaining image data of the heart valve and perivalvular tissue of a patient before surgery, and obtaining strain of each structure; constructing a material constitutive equation of the heart valve and perivalvular tissue to determine stress-strain relationship of each structure under different stress conditions; determining first stress distribution of the heart valve and perivalvular tissue according to the strain of each structure in the heart valve and perivalvular tissue and the stress-strain relationship of each structure under different stress conditions; obtaining second stress distribution of the guide wire when the guide wire is in different morphological positions in the heart valve; and determining third stress distribution of the guide wire on the heart valve and perivalvular tissue when the guide wire is in different morphological positions in the heart valve according to the first stress distribution and the second stress distribution, so as to accurately perform intraoperative navigation of the guide wire.
Owner:XI AN JIAOTONG UNIV
System and method for a two-step registration procedure enabling complete robotic surgical intervention
The present invention provides a system and method for a two-step registration procedure that enables complete surgical intervention by a robot. [Solution] A system for intraoperative navigation is provided, comprising a processing unit and a tracking device for real-time or near-real-time tracking of an object in a 3D coordinate system, wherein the processing unit is configured to receive an X-ray image depicting an anatomical structure including at least one bone, and to determine an incomplete registration of the position of the anatomical structure in the 3D coordinate system. The incomplete registration is determined based on a 3D dataset of the received anatomical structure and a plurality of virtual X-ray images generated from different directions based on the 3D dataset of the anatomical structure. The incomplete registration can be understood as an approximation of the position of the anatomical structure. Based on the incomplete registration, instructions for the navigation of the device are provided.
Owner:METAMORPHOSIS GMBH
Surgical navigation system and method based on electromagnetic positioning and augmented reality
The invention provides a surgical navigation system and method based on electromagnetic positioning and augmented reality, and the system comprises an image data three-dimensional reconstruction module which is used for importing preoperative medical image data into the system, and generating a visual model through a three-dimensional reconstruction algorithm; the pre-operation registration module is used for realizing space mapping of an image coordinate system and an operation coordinate system through a registration method based on mark points; the electromagnetic positioning and coordinate mapping module is used for tracking the pose of the surgical instrument in real time and mapping the coordinates of the instrument to the surgical coordinate system; the augmented reality and high-precision navigation module is used for fusing and displaying the registered virtual navigation image and a real operation scene; the electromagnetic positioning and coordinate mapping module and the augmented reality and high-precision navigation module form a surgical navigation platform integrating electromagnetic tracking and augmented reality display; by fusing the high-precision anti-shielding capability of electromagnetic positioning and the visual visualization effect of augmented reality, stable, accurate and visual intraoperative navigation can be realized.
Owner:FUZHOU UNIV
Preoperative image registration processing method, device, system and storage medium
The application relates to the technical field of image processing, and provides a preoperative image registration processing method, device, system and storage medium, which can provide navigation information for intraoperative navigation in the scene of preoperative image guided puncture and lack of intraoperative real-time scanning image. According to each group in the respiratory phase sequence from the respiratory phase change of the preoperative image to the intraoperative respiratory phase, the image statistical shape model and the deformation field statistical shape model are determined according to the two respiratory phases of the group; the image weight of the group is obtained according to the image statistical shape model of the group and the image corresponding to the preceding respiratory phase; the weight proportion coefficient target value of the group is obtained based on the joint of the image statistical shape model and the deformation field statistical shape model of the group, and then the deformation field weight of the group is obtained in combination with the image weight; the deformation field of the group is obtained according to the deformation field weight and the deformation field statistical shape model of the group; and the preoperative image is registered and deformed according to the deformation fields of the groups.
Owner:WUHAN UNITED IMAGING HEALTHCARE SURGICAL TECH CO LTD
Nanoparticle with fluorescence enhancement performance and preparation method and application thereof
This invention discloses a fluorescence-enhancing nanoparticle, its preparation method, and its applications, relating to the fields of organic fluorescent molecules and bioimaging technology. The nanoparticle comprises: NIR-II fluorescent molecules and an amphiphilic polymer encapsulating the NIR-II fluorescent molecules; the amphiphilic polymer has a hydrophilic segment and a rigid hydrophobic segment. The nanoparticle of this invention, based on "carrier microenvironment engineering," utilizes the rigid confinement and interfacial isolation provided by the amphiphilic polymer with the rigid hydrophobic segment for dual brightening, serving as a universal brightening platform applicable to various NIR-II fluorescent molecules. This nanoparticle can significantly improve aqueous phase quantum yield, enhance contrast and resolution in in vivo vascular imaging, improve deep tissue penetration, increase imaging sensitivity, and facilitate detection under low signal conditions. It also exhibits good stability and biocompatibility, supporting lesion imaging and intraoperative navigation applications.
Owner:SHENZHEN UNIV
High tibial osteotomy navigation method and system and storage medium
The application relates to the technical field of orthopedic surgery navigation, and discloses a high-position tibial osteotomy navigation method, a system and a storage medium, and a communication method which comprises the following steps: generating a 3D bone model of a lower limb of a patient based on medical images and performing preoperative osteotomy planning; performing visual positioning system detection and spatial calibration of a surgical instrument; installing an optical marker array, collecting actual bone point cloud data, and realizing alignment of the model and the bone through a registration algorithm; in-surgery real-time calculation and display of deviation of an operation track and planning parameters; post-surgery reconstruction of a lower limb force line, and comparison and evaluation with preoperative planning and in-surgery navigation records. The system comprises a hardware execution unit and preoperative planning, calibration verification, in-surgery registration, real-time navigation and post-surgery evaluation modules. The application realizes full-process integration of preoperative accurate planning, in-surgery real-time closed-loop navigation and post-surgery quantitative evaluation, and significantly improves the precision, repeatability and predictability of clinical effects of surgery.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR
Intraoperative low-field magnetic resonance intelligent navigation method based on preoperative high-field data guidance
PendingCN121242731ASurgical navigation systemsComputer-aided planning/modellingLesion mappingField data
The invention relates to the technical field of magnetic resonance imaging, in particular to an intra-operative low-field magnetic resonance intelligent navigation method based on preoperative high-field data guidance, which comprises the following steps: acquiring a high-field MRI image of a patient before an operation and extracting a three-dimensional segmentation mask and clinical features of a focus; adjusting according to the clinical features to obtain an intraoperative scanning protocol; and performing low-field magnetic resonance examination during the operation to generate an intra-operation navigation image, and marking focus information. Aiming at the problem that the accuracy of a focus image provided by an ultra-low field system in the operation process in the prior art is not enough, a high-field MRI image collected before the operation is introduced as a reference, scanning sequence parameters of the ultra-low field system used in the operation are dynamically adjusted based on clinical features embodied in the high-field MRI image, a better imaging effect is achieved, and meanwhile, the accuracy of the focus image provided by the ultra-low field system in the operation process is improved. Focus information is marked on the intraoperative navigation image based on the three-dimensional segmentation mask as prior information, so that more refined segmentation of focuses on the intraoperative navigation image is realized, and the surgical requirements are met.
Owner:SHANGHAI SOUNDWISE TECHNOLOGY CO LTD
Intelligent planning and intraoperative navigation system for spinal surgery
ActiveCN121421674AMedical data miningSurgical navigation systemsSpinal columnPhysical medicine and rehabilitation
The invention relates to the technical field of operation planning navigation systems, in particular to a spinal operation intelligent planning and intraoperative navigation system which comprises a data input module, a spinal model building module, an operation planning module, a dynamic deformation tracking module, a navigation control module and a data output module. A spine is represented as a differential manifold through a manifold parameterization unit, a local coordinate construction unit is utilized to establish a multi-local coordinate system, a deformation field calculation unit calculates a spine deformation field based on optical mark point displacement, a deformation prediction unit generates a prediction deformation field, and a compensation parameter generation unit generates navigation compensation parameters. The system also comprises an operation path mathematical optimization algorithm and a scheme sharing mechanism based on a two-dimensional code, and is provided with a fault-tolerant processing module to ensure the stability of the system. According to the system, the navigation precision is improved from the traditional millimeter level to the submillimeter level, the accuracy and safety of spinal surgery are remarkably improved, and the system has wide clinical application prospects.
Owner:XIAN HONGHUI HOSPITAL
A skull surgery navigation method based on curvature guidance and online pose maintenance
This invention discloses a method for intraoperative navigation of craniostomy based on curvature guidance and online pose maintenance, belonging to the field of intraoperative navigation of craniostomy. This invention constrains the curvature prior of the natural human structure: curvature estimation uses the auricle (along the arcuate ridge line of the helix / antihelix) and the nasal ala (along the arcuate ridge line of the nasal ala rim / nasal groove) as anatomical references, preferentially preserving these curvature features and suppressing their tangential "sawtooth" jitter; it provides a continuous and stable 6DoF initial pose on the time axis, and gating freeze / backoff is used to avoid initial value jumps in case of occlusion or mismatch; spatially, curvature-guided filtering is used, combined with anisotropic diffusion of prior constraints to complete edges and holes, improving effective overlap and connectivity. The correspondence between point clouds is more reliable, and the initial values are closer to the true solution, thus enabling robust kernel ICP to converge stably under normal / distance gating, meeting the requirements of high-precision rigid registration and continuous navigation of intraoperative-preoperative 3D models.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Bone local reduction robot system and reduction path dynamic repair method
According to the skeleton local reduction robot system, a skeleton traction nail is fixed through a positioning sleeve, the positioning sleeve is rotationally connected with a support body, so that rigid connection is established between a tracer arranged on the support body and a skeleton, and an intraoperative navigation module can generate a real-time skeleton position map based on the tracer; planning a bone reduction path of the six-axis manipulator; the invention further provides a dynamic restoration method of the restoration path, through multi-source data complementation of the optical tracer, the micro inertial measurement unit and the ultrasonic positioning chip, positioning interruption caused by shielding of traditional single optical positioning is avoided, continuity and accuracy of bone position data are ensured, and the dynamic restoration method of the restoration path is achieved by arranging the six-dimensional force sensor at the six-axis mechanical arm. The traction force, pressure and torque data borne by the fracture end in the reduction process are collected in real time so as to judge the magnitude of resistance encountered in the reduction process of moving the bone, and the moving path is dynamically repaired.
Owner:THE FIRST AFFILIATED HOSPITAL OF WANNAN MEDICAL COLLEGE (YIJISHAN HOSPITAL OF WANNAN MEDICAL COLLEGE)
Three-dimensional myocardial scar visualization system
The embodiment of the invention discloses a three-dimensional myocardial scar visualization system. According to one specific embodiment, the system comprises a data processing end configured to perform heart structure and scar segmentation on target heart magnetic resonance data to obtain a binary tag graph for the heart and the myocardium; constructing an individualized ventricular network and a scar three-dimensional surface model based on the binary label graph; generating an initial myocardial scar three-dimensional model; generating lead implantation track information; generating a myocardial scar three-dimensional model according to the lead implantation track information; and the model application end is configured to perform model rendering on a target application page according to the model parameters corresponding to the myocardial scar three-dimensional model sent by the data processing end so as to provide an interactive operation function and generate a clinical report. According to the embodiment, accurate and visual three-dimensional visual decision support can be provided for preoperative planning and intraoperative navigation of heart diseases, so that the accuracy of surgical planning and the clinical working efficiency are remarkably improved.
Owner:BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV +1
Unicondylar arthroplasty surgical robot system and control method
PendingCN121512686AImage enhancementImage analysisRobotic systemsPhysical medicine and rehabilitation
The invention provides a unicompartmental knee arthroplasty surgical robot system and a control method, and the system comprises a preoperative planning module which is used for carrying out the segmentation and reconstruction of a knee joint according to an obtained knee joint medical image, carrying out the preoperative planning, and determining a unicompartmental knee arthroplasty scheme; the positioning navigation module is used for carrying out registration on the intraoperative entity knee joint and the preoperative knee joint three-dimensional model according to the navigator and the tracer so as to map a unicompartmental knee replacement scheme and track the poses of the guide equipment and the entity knee joint in real time; and the mechanical arm control module is used for planning a path from the mechanical arm to the preparation position and controlling the mechanical arm guide equipment to move to the thighbone preparation position and the tibia preparation position. In this way, the mechanical arm can be controlled to assist in completing the osteotomy operation of unicompartmental knee arthroplasty in a pre-operation planning and intra-operation 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.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD
Animal tracheal instillation self-adaptive control system and method
The invention relates to the technical field of animal medicine, in particular to a self-adaptive control system and method for animal tracheal instillation. The system comprises a preoperative planning module which is used for reconstructing a three-dimensional model based on an individual animal airway CT image, simulating and optimizing administration parameters through computational fluid mechanics, and generating a personalized operation plan; the intraoperative navigation and execution module guides a catheter to reach a target pose through electromagnetic navigation, and performs closed-loop regulation and control on the instillation process through a respiration synchronous triggering algorithm and a pressure self-adaptive control algorithm based on real-time respiration and pressure signals; the central control module coordinates the work of each module; and the postoperative verification module quantifies actual and predicted deposition effects through image comparison. The problems that a traditional method depends on experience, cannot adapt to physiological changes in real time and is poor in drug administration precision are solved, the spanning from experience operation to individualized precise self-adaptive control is achieved, and the safety, repeatability and scientificity of animal experiments are remarkably improved.
Owner:ANHUI KETU BIOTECHNOLOGY CO LTD
Hyperspectral imaging-based intraoperative brain glioma deep learning detection method and system
ActiveCN121122581AImage enhancementMechanical/radiation/invasive therapiesSaturation oxygenMid brain
The invention relates to the technical field of intra-operative navigation, in particular to an intra-operative brain glioma deep learning detection method and system based on hyperspectral imaging, and the method comprises the steps: analyzing the internal heterogeneity of brain glioma based on spectral difference, and evaluating the coverage earnings of a pre-operative planning path and an intra-operative detour path; analyzing oxyhemoglobin saturation distribution based on absorption peak characteristics of hemoglobin in a specific wave band, and evaluating the ischemia risk of a pre-operation planning path and an intra-operation bypassing path; respectively mapping the pre-operation planning path and the intra-operation bypassing path to a brain functional region topology network, and evaluating a functional injury risk corresponding to the paths based on a topology connection relation and a local ischemia risk; and carrying out expected income and risk trend analysis on the pre-operation planning path and the intra-operation bypassing path, and generating an operation path decision suggestion. According to the method, the accuracy and the safety of operation path decision making are effectively improved by quantifying the path coverage income and the function damage risk of the operation path.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
Responsive near-infrared first-zone fluorescent compound as well as preparation method and application thereof
The invention belongs to the technical field of biomedicine, and particularly relates to a responsive near-infrared first-zone fluorescent compound as well as a preparation method and application thereof. The compound mainly comprises a fluorescent probe of three functional modules including a fluorescent chromophore, a fibrosis specific enzyme response group and a quenching group, and on the basis, an active / passive targeting group of a targeted disease organ is introduced to form a more excellent fluorescent probe of four functional modules. The effect of the probe is verified in a time-varying progress experiment of a fibrosis disease model, and the probe not only has high specificity and sensitivity, but also has relatively good safety and biocompatibility; the near-infrared first-area fluorescent compound and pharmaceutically acceptable salts or solvates, enantiomers, diastereoisomers and tautomers thereof can be used for preparing fluorescent molecular probes, and diagnosis, intraoperative navigation treatment, tissue and organ function evaluation and the like can be more accurately carried out on diseases.
Owner:SUN YAT SEN UNIV
A functionalized diblock copolymer and methods of making and using the same
ActiveCN112142986BPowder deliveryPharmaceutical non-active ingredientsChemical structurePolymer science
The application relates to the field of organic chemistry and high polymer chemistry, in particular to a functionalized double-block copolymer and a preparation method and application thereof. The application provides a functionalized double-block copolymer, and a chemical structural formula of the functionalized double-block copolymer is shown as formula I. The functionalized double-block copolymer or polymer particle provided by the application can be widely applied in the fields of tumor imaging and tumor treatment, and has not only good safety, realizes faster and adjustable (by changing the number of pipe groups) degradation and removal of the polymer under an acidic condition, but also has excellent specific high-quality imaging effects at a target site, has characteristics of high signal-to-noise ratio, clear boundary, long half-life and the like, solves the problem of real-time intraoperative navigation of the fluorescence imaging technology, and thus has good industrialization prospects.
Owner:INNOVATINGBIO (SHANGHAI) CO LTD
Training method of ct and dsa real-time automatic fusion registration system for structural heart disease intervention and storage medium
The application provides a training method of a CT and DSA real-time automatic fusion registration system for structural heart disease intervention and a storage medium, and comprises the following steps: establishing a registration system data set; establishing an initial registration system; training the initial registration system based on the registration system data set to obtain a trained CT and DSA intraoperative registration system; inputting preoperative CT image data and real-time DSA image data of a to-be-identified person into the trained CT and DSA intraoperative registration system to obtain real-time fusion navigation images and intraoperative risk graphical prompt information. The application can realize dynamic registration across modalities and time points, provide higher-precision intraoperative navigation support for structural heart disease intervention, improve the safety of surgery, and reduce radiation exposure.
Owner:RENJI HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Liver and gall image segmentation method based on 2.5 D model and drainage basin analysis
PendingCN121962162Arobust discrimination abilityRealize dynamic posture adjustmentImage analysisBiological modelsVoxelStructure analysis
The invention provides a liver and gall image segmentation method based on a 2.5 D model and drainage basin analysis, and the method comprises the steps: constructing a voxel-level liver segment label graph through Couinaud liver segment structure analysis based on a portal vein center line; secondly, a 2.5 D model guided by structure perception is adopted for liver and gall structure segmentation, three-dimensional context information and a structure attention mechanism are fused in the model, and the discrimination ability at a complex junction is enhanced; then, in the intraoperative navigation stage, a stable registration relation is established by utilizing the structure number diagram and a visual image obtained in real time, dynamic posture adjustment is achieved, and the navigation stability is improved; and finally, the postoperative focus quantitative analysis module performs attribution analysis, volume quantification and credibility calculation on the focus area in combination with the structure numbering diagram and the model thermodynamic diagram. The whole process integrates dissection consistency, cross-stage adaptability and interpretability, and the requirements of the hepatobiliary surgery department for precise operation planning, real-time navigation and postoperative follow-up visit are met.
Owner:HUNAN PROVINCIAL TUMOR HOSPITAL
Orthodontic micro-implant ai-mr navigation and marker clip registration system
The application relates to the technical field of oral medicine, and discloses an orthodontic micro-implant AI-MR navigation and mark clamp registration system, which comprises the following modules: a data fusion module, which collects CBCT data and intraoral scanning data, and uses an image fusion algorithm to construct a three-dimensional digital dental model; an intelligent path planning module, which analyzes tooth root and alveolar bone morphology by using an AI algorithm, and plans an optimal implantation path; a registration and virtual-real registration module, which realizes virtual-real registration by clamping a registration mark clamp or other registration anchor point in the incisal edge area of anterior teeth, constructs an MR space registration post-model, and maps the optimal implantation path to a real coordinate system to obtain a virtual path; and an intraoperative navigation module, which tracks real-time position changes of an MR head-mounted device and updates a virtual path superposition position, and performs navigation guidance in the whole implantation process. The application scheme can improve positioning accuracy, operation visibility and system adaptability in the implantation process of an orthodontic micro-implant.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY +2
GPS navigation single-arm robot navigation system for PCNL
The invention discloses a GPS navigation single-arm robot navigation system for percutaneous nephrolithotripsy (PCNL), which comprises a reverse laser positioning module used for emitting laser from inside to outside of tissues through a laser emitter to assist in positioning an insertion point of a surgical puncture needle; the single-arm robot execution module is used for driving a puncture needle to arrive at the body surface puncture point marked by the laser spot along a planned path based on instruction movement of the navigation signal tracking and fusion module and executing puncture; the navigation signal tracking and fusion module is used for tracking signals, receiving and processing spatial position information and medical image data and generating a real-time navigation interface; the special instrument suite comprises an integrated double-endoscope sleeve, and the inner diameter of the sleeve allows the standard nephroscope or the flexible ureteroscope to conduct combined lithotripsy or exploration at the same time. According to the invention, reverse optical positioning, robotics, real-time electromagnetic navigation and special instrument innovation are integrated, and an integrated intelligent solution for covering preoperative planning, intra-operative navigation, channel establishment and stabilization of the whole process is provided.
Owner:SHANGHAI CITY PUDONG NEW AREA GONGLI HOSPITAL
An inner ear micro-invasive surgery robot system and control method
The application discloses an inner ear micro-invasion operation robot system and a control method, relates to the technical field of medical devices and operation robots, and discloses an execution system as an operation robot body, which is used for completing an operation operation through an external auditory canal approach under the constraint of a narrow and curved cavity; a guide system is based on preoperative and intraoperative multi-modal images, and is used for providing functions of preoperative approach planning, intraoperative navigation positioning, anatomical structure identification and enhanced visual guidance; a control system is used for receiving and processing operator input and execution and guide system feedback information, realizing data interaction and instruction issuing between a user layer, a control layer and an execution layer, so as to guarantee the precision and stability of robot operation. The application is used to solve the problems that in the prior art, a complete intraoperative navigation system and a systematic operation operation process are lacked, the intelligent degree is limited, the experience of an operator is highly dependent, and a corresponding control system is not perfect; meanwhile, key links such as a tympanic membrane puncture need to be separately completed by using additional instruments, and the robot system is not yet connected.
Owner:HARBIN INST OF TECH
Hand-object interaction three-dimensional reconstruction method and device based on language guidance
PendingCN121190656AInput/output for user-computer interactionMedical automated diagnosisPoint cloudModel reconstruction
The invention provides a hand-object interaction three-dimensional reconstruction method and device based on language guidance, and the method comprises the steps: extracting hand point cloud features and instrument point cloud features in an initial interaction point cloud, and the instruction semantic features of an interaction instruction; based on the hand point cloud feature, the instrument point cloud feature and the instruction semantic feature, obtaining an instrument contact area; constructing a gravitational field of the hand part point based on the distance between the hand part point and an instrument contact site in the instrument contact area; and based on the gravitational field, optimizing the three-dimensional space position of the hand part point to obtain a three-dimensional reconstruction model. According to the method provided by the invention, the interaction instruction reflecting the interaction intention is introduced, the interaction action of the hand and the instrument is accurately reflected, position solving is carried out on the basis of the constructed gravitational field, and three-dimensional model reconstruction with accurate prediction and high fitting degree of the hand and the instrument is realized; and a more reliable and more accurate hand and instrument interaction model is provided for tasks such as intraoperative navigation in an intelligent medical auxiliary system.
Owner:Artificial Intelligence and Robotics Innovation Center of Hong Kong Institute of Innovation, Chinese Academy of Sciences
A real-time acceleration system for simulating intra-cardiac navigation
The present application relates to the field of simulation data processing, and particularly relates to a real-time acceleration system for simulating intraoperative navigation of heart surgery, comprising a construction execution module configured to construct a three-dimensional geometric model and optimize physiological characteristics for a simulation execution target; a construction analysis module configured to determine whether to perform optimization analysis on the optimized construction model based on real-time fluctuation coefficients of various physiological monitoring data; a simulation optimization module configured to determine whether to perform interval matching analysis or trend matching analysis on the simulation execution target based on the physiological monitoring state; a hierarchical cache module configured to determine whether to perform optimization processing on a cache target coefficient of existing cache execution information based on a cache target difference parameter; and a navigation execution module configured to determine a recommended execution path. The present application improves the analysis efficiency of the simulation analysis process of the optimized simulation model.
Owner:GUANGDONG GENERAL HOSPITAL
Intraoperative brain glioma deep learning detection method and system based on hyperspectral imaging
ActiveCN121122581BImage enhancementMechanical/radiation/invasive therapiesSaturation oxygenMid brain
The present application relates to the technical field of intraoperative navigation, and particularly relates to an intraoperative brain glioma deep learning detection method and system based on hyperspectral imaging, the steps of the method comprising: analyzing the internal heterogeneity of brain glioma based on spectral difference, evaluating the coverage benefits of preoperative planning path and intraoperative detour path; analyzing the blood oxygen saturation distribution based on the absorption peak characteristics of hemoglobin in a specific wave band, evaluating the risk of local ischemia of the preoperative planning path and the intraoperative detour path; mapping the preoperative planning path and the intraoperative detour path to the brain function area topology network respectively, and evaluating the functional damage risk of the paths based on the topological connection relationship and the risk of local ischemia; analyzing the expected benefits and risk trends of the preoperative planning path and the intraoperative detour path, and generating surgical path decision suggestions. The present application quantifies the path coverage benefits and functional damage risks of the surgical path, effectively improving the accuracy and safety of the surgical path decision.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
Ovarian cancer intraoperative navigation method and system based on machine vision
The invention discloses an ovarian cancer intraoperative navigation method and system based on machine vision. The method comprises the following steps: 1, obtaining a fluorescence signal; 2, obtaining a white light image and a fluorescence image; 3, obtaining a fluorescence correction image and a white light reliable region mask; 4, inputting the fluorescence correction image into the improved SAM2 model for tumor segmentation, and outputting a tumor area mask and a tumor confidence map; 5, generating a white light structure diagram and a fluorescent light structure diagram; 6, extracting a white light key point set and a fluorescent light key point set; step 7, key point matching is carried out by using a bidirectional consistency constraint rule of a SuperGlue algorithm, and a registration mapping relation from the fluorescent image to the white light image is generated; and 8, mapping the tumor area mask and the tumor confidence map to a white light image coordinate system to generate an intraoperative navigation image. According to the method, the improved SAM2 model and the SuperGlue algorithm are combined, so that precise navigation in the ovarian cancer operation is realized.
Owner:THE AFFILIATED CENT HOSPITAL OF DALIAN UNIV OF TECH (DALIAN CENT HOSPITAL)
Intelligent orthopedic surgery navigation system
PendingCN121845742ASurgical navigation systemsSurgical systems user interfaceOrthopedics surgeryMedical equipment
The invention discloses an intelligent orthopedic surgery navigation system which comprises a preoperative planning module, an intraoperative navigation core module, a mechanical auxiliary execution module and a data interaction and safety module, and the preoperative planning module, the mechanical auxiliary execution module and the data interaction and safety module are in communication connection with the intraoperative navigation core module. The invention relates to the technical field of orthopedic medical equipment, precise path planning is completed through the preoperative planning module, virtual-real fusion navigation is realized through dual-mode positioning in an operation, and stable guidance and safety protection are provided by the mechanical auxiliary execution module. The data interaction and safety module guarantees reliable operation in the whole process, the positioning precision is smaller than or equal to 0.5 mm, the problems that traditional orthopedic surgery is low in precision, high in radiation, insufficient in safety and the like are effectively solved, operation is easy and convenient, cost is controllable, and the system is suitable for clinical application and popularization.
Owner:徐州仁慈医院
Image-guided rectal puncture visualization and irrigation method based on fluorescence contrast enhancement
PendingCN122123779AEnemata/irrigatorsOrgan movement/changes detectionAnatomical structuresFluorescence
This invention relates to the field of medical auxiliary technology, and more particularly to an image-guided rectal puncture and irrigation method based on fluorescence contrast enhancement. The method includes: firstly, using artificial intelligence to segment preoperative pelvic magnetic resonance images to generate a three-dimensional model containing the target lesion and key anatomical structures, and planning a safe puncture path accordingly; during the procedure, using elastic registration technology to spatially align real-time ultrasound images with the three-dimensional model to generate a fused image for real-time navigation of the puncture instrument to the target lesion; subsequently, injecting a fluorescent contrast agent into the lesion, and confirming the true extent of the lesion through fluorescence imaging; finally, while irrigating the lesion, monitoring the attenuation of the fluorescence signal intensity in real time, and objectively determining the irrigation endpoint when the signal intensity drops to the background noise level and the change curve enters a plateau phase. This invention achieves precision and objectivity throughout the entire process, from preoperative planning to intraoperative navigation and efficacy verification.
Owner:HEBEI PROVINCIAL PEOPLES HOSPITAL