26 results about "Temporal bone part" patented technology

The invention relates to the field of image analysis, in particular to a temporal bone disease classification method and system based on a multi-modal medical image fusion technology. The method comprises the following steps: acquiring a multi-modal image of a patient, performing adaptive distortion correction, and generating a standardized image set; performing layer-by-layer anatomical structure semantic segmentation and multi-modal image fusion on the standardized image set to construct an image fusion framework; according to the image fusion framework, performing intelligent recognition on the fine structure of the temporal bone, and constructing a personalized temporal bone anatomical structure chart; performing tissue function state analysis and digital pathology dynamic simulation based on the personalized temporal bone anatomical structure chart, and constructing a digital pathology model; and performing intelligent pathological feature classification based on the digital pathological model to obtain an intelligent classification report. According to the method, rapid, efficient and accurate temporal bone disease classification is realized.

The invention relates to the technical field of image analysis, in particular to a temporal bone and gallbladder sebaceous tumor detection method and system based on multi-modal medical image fusion. The method comprises the following steps: acquiring a multi-modal temporal bone and gallbladder sebaceous tumor image of a patient, carrying out multi-modal image time sequence space alignment, carrying out feature vector change rate fitting, and constructing a multi-time-point image feature vector map; performing multi-modal image voxel decomposition on the multi-time-point image feature vector map, and performing three-dimensional morphological analysis to generate a geometric morphological parameter set; carrying out potential pathological hierarchical structure mining based on the geometric morphology parameter set, carrying out semantic label labeling, and constructing a multi-modal lesion semantic labeling image; and carrying out multi-time-point image change analysis on the multi-modal lesion semantic marking image, and carrying out parallel lesion evolution state prediction so as to generate a cholangioma evolution state prediction map. According to the method, accurate positioning, effective segmentation and visualized display of the temporal bone and gallbladder sebaceous tumor focus are realized.

The invention provides a temporomandibular artificial joint replacement device, a preparation method and a surgical robot system.The temporomandibular artificial joint replacement device is characterized in that a mandibular fixing support is fixedly connected with the outer side face of the mandible of the human body, a temporal bone fixing support is fixedly connected with the outer side face of the temporal bone of the human body, a containing cavity is formed in a glenoid fossa liner, and a spherical joint head is movably arranged in the containing cavity; a base layer, a variable-rigidity elastic buffer layer and a surface layer are sequentially arranged on the inner wall of the containing cavity in the thickness direction of the side wall of the glenoid fossa liner. By means of the temporal-mandibular artificial joint replacement device, efficient simulation of the temporal-mandibular joint replacement device on a real human body temporal-mandibular joint structure can be achieved, the structural strength and the use comfort of the temporal-mandibular artificial joint replacement device are improved, and based on artificial intelligence and a surgical robot auxiliary technology, the device is simple in structure and convenient to use. The preparation function of the temporomandibular artificial joint replacement device matched with the human tissue structure and the automatic assembly surgical operation are achieved.

The invention relates to a virtual reality and reality image fusion navigation method and system for temporal bone surgery, and the method comprises the steps: obtaining medical image data of a temporal bone region, and carrying out the three-dimensional reconstruction, thereby obtaining a temporal bone dynamic virtual model; optical tracking data and instrument space pose data are obtained, dynamic registration mapping is conducted on the temporal bone dynamic virtual model, and a real-time space fusion relation is obtained; performing navigation view construction on the instrument space pose data and the real-time space fusion relationship to obtain an augmented reality navigation view; performing structural distance analysis on the augmented reality navigation view to obtain dynamic early warning parameters; and performing display regulation and control according to the augmented reality navigation view and the dynamic early warning parameters to obtain a real-time navigation strategy. The problem of traditional static image registration lag can be effectively solved, and it is ensured that the virtual model and the actual anatomical structure are always kept in high-precision matching.

A non-full-covering single flight vehicle helmet comprises a helmet body, goggles are arranged on the front portion of the helmet body, a temporal bone-occipital bone annular air cushion is arranged on the inner wall of the lower portion of the helmet body, a top bone-frontal bone cap-shaped air cushion is arranged on the inner wall of the upper portion of the helmet body, an inflatable neck support is arranged at the bottom of the helmet body, a gas generator is arranged on the back of the helmet body, and the inflatable neck support is connected with the gas generator through a pipeline. The inflatable neck support is contained in a net-shaped braid arranged along the edge of the bottom of the helmet, the upper portion of the net-shaped braid is connected to an interlayer between the helmet and the parietal bone-frontal bone cap-shaped air cushion, and the net-shaped braid is made of elastic materials. The temporal bone-occipital bone surrounding air cushion and the parietal bone-frontal bone cap-shaped air cushion are both non-trigger type air cushions, are provided with snap fasteners connected with the helmet, and are both of a multi-layer structure. According to the scheme, the non-triggering air cushion is integrated in the helmet, and the triggering type neck support air bag is arranged, so that a pilot is effectively protected.

This invention relates to a virtual reality and real-world image fusion navigation method and system for temporal bone surgery. The method includes acquiring medical image data of the temporal bone region for three-dimensional reconstruction to obtain a dynamic virtual model of the temporal bone; acquiring optical tracking data and instrument spatial pose data, and dynamically registering and mapping the dynamic virtual model of the temporal bone to obtain a real-time spatial fusion relationship; constructing a navigation view based on the instrument spatial pose data and the real-time spatial fusion relationship to obtain an augmented reality navigation view; performing structural distance analysis on the augmented reality navigation view to obtain dynamic warning parameters; and adjusting the display based on the augmented reality navigation view and the dynamic warning parameters to obtain a real-time navigation strategy. This method effectively solves the problem of registration lag in traditional static images, ensuring that the virtual model and the actual anatomical structure maintain a high-precision match at all times.

The present invention relates to a surgical template (OS) for use in the temporal bone region, particularly within a framework for performing radical mastoidectomy, comprising a template body (SK) having an outer surface (AS) and an inner surface (IS) on which the template body (SK) should be positioned on the temporal bone. [Solution] The template body (SK) is penetrated by an opening (D) that extends from the outer surface (AS) to the inner surface (IS), and the opening (D) of the template body (SK) is defined by an outer edge (AR) that corresponds to the outer contour of the temporal bone portion to be removed.

To provide a skull model facilitating the understanding of an operation including a brain stem, a skull base, a posterior fossa, and a craniocervical spinal cord transition part since there is no suitable model corresponding to the examination of the operation including the brain stem, the skull base, the posterior fossa, and the craniocervical spinal cord transition part such as an approach to an important part, for example, an ExtremeLateralApproach and a TranscondylarApproach in the operation including the skull base part.SOLUTION: A head model for training or teaching craniotomy of disease in the skull, comprising at least a portion of the temporal bone, the posterior fossa, and the atlanto-occipital joint.SELECTED DRAWING: Figure 1

The invention relates to the technical field of medical instruments, in particular to a temporal-mandibular joint anterior baffle prosthesis with a porous structure, which comprises a baffle plate, a lateral cranium fixing wing and a zygomatic arch fixing wing which are respectively fixed on a temporal bone scale part and a zygomatic arch, and the bottom of the baffle plate is a cambered surface and is used for fitting and limiting excessive forward movement of a mandibular condyle process. The whole prosthesis is made of a titanium alloy and PEEK composite material, and is provided with a bionic bone tissue porous structure and through holes which are distributed all over the whole, so that the lightweight structure is realized, the bone compatibility is improved, and the osseointegration is promoted. The problems that an existing prosthesis is large in weight, poor in bone compatibility, prone to causing bone degeneration and the like are solved, the prosthesis has the advantages of being light in weight and good in biocompatibility, the comfort and the osseointegration effect are improved, and postoperative discomfort and secondary operation risks of a patient can be effectively reduced.

The invention relates to the field of medical education, in particular to a high-simulation temporal bone anatomy simulator which comprises a half-dissected skull base. The operation hole is formed in the temporal bone position; the outer ear unit is detachably arranged on the operation hole; the inner ear unit is arranged on the inner side of the skull base and located at the operation hole, the inner ear unit is detachably arranged in the skull base, the inner ear unit is formed by matching a bone body module and a soft body module, the bone body module is made of a hard material, and the soft body module is made of a flexible material; the inner ear unit is internally provided with an in-ear pipeline for simulating a blood vessel; a hydraulic system used for supplying liquid to the pipeline is arranged in the skull base. The technical problem that existing temporal bone dissection is difficult to carry out surgical operation practice is solved.

This invention discloses a teaching device for manual reduction of temporomandibular joint dislocation, comprising a base plate on which a lifting and adjusting assembly is mounted. A skull model is mounted on top of the lifting and adjusting assembly. The skull model has a temporalis muscle spring assembly between the temporal bone and coronoid process, a masseter muscle spring assembly between the zygomatic arch and the lateral surface of the lower border of the mandibular angle, a medial pterygoid muscle spring assembly between the posteromedial aspect of the maxillary tuberosity and the medial surface of the lower border of the mandibular angle, and a lateral pterygoid muscle spring assembly between the articular pterygoid fossa and the lateral pterygoid plate at the condylar neck. In this invention, the skull model can rotate on top of the lifting and adjusting assembly, allowing the device to visually display the temporomandibular joint and the mandibular elevating muscles closely related to joint dislocation, simulating the movement of muscles inside the oral cavity, thus realistically simulating the force resistance against the mandibular elevating muscles during temporomandibular joint reduction. Furthermore, the device allows for angle adjustment to accommodate students in different positions.

The invention relates to the technical field of instrument path planning, in particular to a temporal bone surgery navigation system in a mixed reality environment. The system comprises the following steps: a three-dimensional reconstruction module is used for collecting a multi-modal medical image, carrying out voxel-level deep fusion and three-dimensional point cloud geometric reconstruction, and constructing a temporal bone virtual anatomical model; the risk analysis module is used for performing injury risk propagation path analysis on the temporal bone virtual anatomical model to obtain a visual risk anatomical model; the risk distance calculation module is used for detecting real-time pose parameters of the surgical instrument, performing risk area distance calculation on the visual risk anatomical model and extracting risk area distance parameters; and the intelligent navigation optimization module is used for performing instrument movement track parameter adjustment and intelligent instrument navigation optimization according to the risk area distance parameter. According to the invention, by providing accurate and real-time instrument moving path planning, the safety is improved and the risk is reduced.

The invention relates to a multi-modal data analysis method and device for temporal bone disease diagnosis, and the method comprises the steps: obtaining temporal bone multi-modal data, carrying out the modal difference elimination, and obtaining structured feature data; performing cross-modal space registration and target structure mapping on the structured feature data to obtain cross-modal registration data; performing cross-modal correlation calculation on the structural features and the cross-modal registration data to obtain quantitative correlation parameters; and performing multi-modal trend analysis on the quantitative correlation parameters to obtain a temporal bone analysis report. According to the method, the defects of traditional single-mode evaluation can be overcome, and the comprehensiveness and accuracy of disease diagnosis are improved.

The invention relates to the field of medical teaching equipment, in particular to a mandible movement simulation mechanism for teaching a simulated person, which comprises a simulated mandible, a simulated temporal bone and a mandible movement mechanism for connecting the simulated mandible and the simulated temporal bone, the mandible movement mechanism comprises a right movement mechanism, a left movement mechanism and a right movement mechanism, the left movement mechanism is matched with the right movement mechanism for linkage; one end of the left movement mechanism is fixedly connected to the left side of the simulated temporal bone, and the other end is fixedly connected to the rear side of the left wisdom tooth of the simulated mandible. By arranging the left movement mechanism and the right movement mechanism, the left movement mechanism and the right movement mechanism move cooperatively, the movement track of the mandible in the mouth opening and closing process of a real person is restored, and therefore the space of the throat wall of the trachea cannula is simulated when the mouth is opened for clinical operation. In the opening and closing process, the simulation of composite motion of rotation and sliding is realized, so that the teaching requirements in medical teaching activities are met.

The present invention relates to a temporal bone implant (SI) provided for at least partially reconstructing the posterior wall of the external auditory canal, comprising a first portion (A1) which is shaped as a tube or tube segment and designed to form at least one wall portion of the posterior wall by covering a space within the temporal bone, thereby separating the auditory canal from the space. [Solution] The first part (A1) transitions into a plate-shaped second part (A2) oriented laterally to the first part (A1). This second part (A2) is attached to the mastoid process of the temporal bone and, together with the first part (A1), is provided to cover the gap.

The invention relates to a temporal bone CT-based facial nerve and drumhead nerve automatic segmentation method, and belongs to the technical field of nerve segmentation, and the method comprises the steps: obtaining a temporal bone CT image, inputting the temporal bone CT image to a layer of encoder, and changing the channel number of the temporal bone CT image into 32; the signals are sequentially input into a second layer encoder, a third layer encoder and a fourth layer encoder for processing; sequentially inputting the output of the fourth-layer encoder into the fifth-layer encoder, the sixth-layer encoder and the last-layer encoder to be processed, wherein the fifth-layer encoder, the sixth-layer encoder and the last-layer encoder are added with fast discrete wavelet transform convolution fusion modules; key features of the temporal bone CT image are extracted; the outputs of the second-layer encoder, the third-layer encoder, the fourth-layer encoder, the fifth-layer encoder and the sixth-layer encoder are respectively subjected to jump connection processing through the high-frequency attention guidance module and then are input into the second-layer decoder, the third-layer decoder, the fourth-layer decoder, the fifth-layer decoder and the sixth-layer decoder, and the key features of the last-layer encoder are input into the last-layer decoder; and the decoders of the last layer, the sixth layer, the fifth layer, the fourth layer, the third layer, the second layer and the first layer sequentially perform up-sampling to realize feature recovery and decoding, and facial nerve and drumhead nerve segmentation prediction results are generated.

The embodiment of the invention provides a temporal bone side skull base operation simulation method and system and related equipment, and belongs to the technical field of computers. The method comprises the following steps: acquiring a medical image of a temporal bone side skull base; performing model construction according to the medical image to obtain a target three-dimensional model; in the simulation operation of the target three-dimensional model, simulation operation data are recorded, and the simulation operation data comprise operation track data and mechanical data; inputting the preprocessed operation track data and the preprocessed mechanical data into a trained operation data analysis model for feature extraction to obtain operation track features and mechanical features; carrying out feature fusion on the operation track features and the mechanical features to obtain fusion features; and performing surgical operation quality evaluation according to the fusion features to obtain an evaluation result. According to the embodiment of the invention, the accuracy of simulated operation evaluation can be improved.

The invention relates to the technical field of oral disease animal model construction methods, in particular to a construction method of a traumatic temporomandibular ankylosis animal model. The construction method comprises the following steps: selecting an anterior auricular region on one side of an experimental subject, avoiding temporal superficial artery and vein, passively separating from front to back along a zygomatic arch to a joint capsule, exposing a mandibular condylar process neck and part of the zygomatic arch, and separating a condylar process after opening the joint capsule; the outer side attachment of the joint disc is separated through the joint gap, the peripheral attachment of the joint disc is cut off after the joint disc is exposed, and part or all of the joint disc is removed; the joint space is exposed through horizontal blunt separation of the joint capsule, part of fibrous cartilage on the condylar process head is removed, and fossa articular cartilage is damaged; after being sober, the animals eat soft food, and the traumatic temporomandibular joint ankylosis animal model is obtained. Modeling is carried out in the mode that the condyle process and the temporal bone glenoid fossa part fibrous cartilage and the articular disc are removed in a surgical operation mode, and the animal model established in a composite trauma mode fits the complex pathological environment of human diseases.

The utility model relates to the technical field of medical teaching, in particular to a mastoid radical operation teaching device and a system thereof. The mastoid process radical operation teaching device comprises a conductive nerve, a conductive grinding machine, a first reminding unit and a driving unit, and the conductive nerve is used for being buried in an external temporal bone model to simulate nerves in a mastoid process of a human body; the conductive grinding machine is used for removing sclerotin in a mastoid region in the external temporal bone model; the driving unit is connected with the first reminding unit and the conductive nerve and used for driving the first reminding unit to work when the conductive grinding machine makes contact with the conductive nerve to form a short-circuit loop. According to the mastoid process radical treatment teaching device, the fidelity and practicability of mastoid process radical treatment teaching in surgical operation training can be improved, an operator is helped to adjust operation on the conductive grinding machine, the protection skill of nerves in the mastoid process is practiced, and the teaching quality of the mastoid process radical treatment is helped to be improved.

This invention discloses a method and system for longitudinal bone mineral density prediction and high-risk window identification, belonging to the field of intelligent bone health assessment technology. Based on a large amount of localized population-based bone mineral density data assets, this invention preprocesses the data to construct a regionally adaptive dual-graph LSTM network for temporal bone mineral density prediction. It quantifies prediction uncertainty and generates confidence intervals using a Bayesian method, employs the PELT algorithm to detect bone mineral density evolution change points, and identifies the critical point of accelerated decline. By integrating prediction results, confidence intervals, and change point locations, a three-dimensional high-risk window is delineated, and personalized intervention plans are output, supporting multi-platform deployment. This invention solves the problems of inapplicability to traditional assessment standards, difficulty in capturing nonlinear changes, and insufficient prediction reliability, significantly improving the accuracy of bone mineral density prediction and the timeliness of clinical intervention. It is suitable for osteoporosis risk screening and primary healthcare management.

The utility model relates to the field of jaw joint treatment, in particular to a temporomandibular joint training teaching aid model which comprises a model body, a temporal bone mimicry part, a temporal bone mimicry part, a mandible mimicry part, a joint capsule module detachably mounted on the temporal bone mimicry part and used for simulating a mandible, and a joint capsule module detachably mounted on the mandible mimicry part and used for simulating the mandible. The mimicry mandible is rotatably connected with the joint capsule module through the rotating shaft, so that the mimicry mandible part can rotate relative to the joint capsule module. By arranging the mimic temporal bone part, the mimic mandibular bone part and the joint capsule module, all joints which may be involved in the original temporal-mandibular joint operation process are modularized, and a user can place all the joints on the model body according to own requirements. Meanwhile, the joint capsule module serving as a main object of operation training can be independently replaced after training is completed, other parts do not need to be replaced, and the teaching cost is effectively reduced.

The invention relates to the technical field of medical anatomical models, in particular to a 3D printing high-reduction temporal bone specimen preparation method which comprises the steps of data acquisition and three-dimensional modeling, model optimization and modular design, partition 3D printing forming, soft tissue simulation layer preparation and integration and assembly and function integration. Different-precision image data fusion modeling, a partition printing strategy and a multi-hardness silica gel composite technology are adopted, an elastic connector and a pressure-adjustable blood vessel system are integrated, high-fidelity reduction of fine structures such as temporal bone structures, auditory ossicles and nerve blood vessels is achieved, anatomical details and physiological functions of the prepared specimen are highly reduced, and the accuracy of the specimen is improved. The device is suitable for operation training, preoperative simulation and teaching demonstration of the otolaryngology department, and has the functions of high simulation, strong interaction, safety and reusability.

The present disclosure concerns a headgear, comprising a crown loop configured to circumscribe a crown region of a patient's head, the crown loop comprising a lateral segment configured to be adjacent to or below an occipital bone and / or a trapezius muscle of the patient's head; a first strap engageable with a seal-forming structure and / or plenum chamber at both ends thereof; a connector for connecting the first strap to the crown loop such that in use the first strap overlays temporal bones of the patient's head, and a second strap engageable with the seal-forming structure and / or plenum chamber at both ends thereof and engageable with a lateral segment.

This invention relates to the field of medical teaching model manufacturing technology, and particularly to a biomimetic temporal bone model manufacturing method and system, comprising the following steps: S1, acquiring a three-dimensional digital model of the target anatomical site, identifying the anatomical channels of the heterogeneous structure to be constructed within the three-dimensional digital model, extracting the topological morphology and apical closed section position of the anatomical channels, and reserving an implantation operation window based on the apical closed section position; S2, calculating a preset interruption layer height based on the implantation operation window, and generating an additive manufacturing slice path file containing a suspension command triggered at the preset interruption layer height. In this invention, by implanting heterogeneous units in situ and constructing physical interfaces during the manufacturing interruption period, seamless integration of non-adhesive heterogeneous structures is achieved, thereby improving the problem that traditional models mostly use multi-material integrated printing, where thermal fusion adhesion between materials results in the inability to simulate the feel of real anatomical dissection.

This invention discloses a method and system for three-dimensional modeling of the temporal bone based on CT images, belonging to the field of image data processing technology. The method includes: using a high-resolution computer to perform tomographic scanning of the temporal bone of a target user to obtain HRCT image data; constructing three-dimensional HRCT volume data after preprocessing; inputting the data into a three-dimensional semantic segmentation network to generate a multi-class probability map; generating a semantic region mask based on the map; optimizing the geometric consistency of the three-dimensional HRCT volume data under the constraints of the mask; generating a three-dimensional mesh model of the temporal bone through three-dimensional surface reconstruction; and finally optimizing and outputting the three-dimensional model of the temporal bone. This invention solves the technical problems of difficulty in recognizing small structures and easy semantic segmentation ambiguity and geometric feature distortion during the modeling process due to the complex anatomical structure of the temporal bone. It achieves the technical effect of accurately restoring the anatomical structure of the temporal bone, improving the stability and realism of the model, and making the model highly consistent with the actual anatomical state of the human temporal bone.

The invention provides an inner ear dissection and malformation classification method and system based on a mixed reality technology, and is applied to the technical field of data processing. Target anatomical structures are segmented from temporal bone CT scanning data through software, and anatomical structure three-dimensional feature information and image and model dynamic matching feature information are generated; establishing a visual link between the deformity feature description and the three-dimensional model corresponding structure in the clinical diagnosis report through a Bezier curve, and generating deformity feature association information and interaction state identification information; image and model matching precision and three-dimensional model anatomy accuracy are combined with a medical expert verification result for processing, and an anatomy state evaluation result and an interaction influence factor are generated; processing the anatomical state evaluation result and the interaction influence factor to generate a mixed reality technology application influence factor; and processing the anatomy state evaluation result, the mixed reality technology application influence factor and the malformation feature association information to generate an inner ear anatomy and malformation classification dynamic learning result.