9 results about "Temporal bone part" patented technology

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 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 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.

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.