45 results about "Bone structures" patented technology

The invention discloses a topological mapping monitoring and correcting method for abnormal scapular brachial rhythm after breast surgery, and belongs to the field of medical rehabilitation and computer vision. The method comprises the following steps: acquiring a trunk dynamic three-dimensional point cloud and infrared thermal imaging data; constructing a multi-layer collaborative dynamic topology network fusing a skeleton structure, soft tissue deformation and physiological activeness; extracting an intrinsic motion field and comparing the intrinsic motion field with the ideal model to generate deviation measurement; and calculating a dynamic instability index, comparing the dynamic instability index with a threshold value, and triggering optimization energy correction path calculation and instruction output. According to the method, the multi-dimensional topological mapping and dynamics prediction technology is adopted, accurate recognition and feed-forward early warning of motion abnormity under the influence of deep tissue adhesion after the breast surgery can be achieved, rehabilitation of a patient is guided through an energy consumption minimization path, and the accuracy of shoulder joint function remodeling and the individualized treatment effect are improved.

The invention discloses an orthopedic surgery navigation drilling and implant placement intention real-time optimization method based on multi-modal perception, and relates to the technical field of computer-aided surgery, man-machine interaction and intelligent medical equipment. Multi-modal signals such as electroencephalogram, eye movement and myoelectricity of a doctor are collected in real time through XR glasses and an intelligent surgical drill; and inputting the pre-trained micro-world model to generate a current intention vector and predict a future bone structure trajectory. The intention level is judged by calculating the energy distance between the intention and the master template and an emotional value function: when the intention meets the master level condition, the system automatically generates an XR green optimal path and assists in operation; and when the intention is identified as the risk intention, triggering the skykeeper system to lock the equipment and send out an alarm. The system supports a data federation learning evolutionary model, and immediately destroys an original multi-mode signal after encoding to guarantee data security. According to the invention, the real-time monitoring, evaluation and guidance of the operation intention are realized, and the accuracy and safety of the operation are improved.

The utility model relates to the technical field of heating and ventilation pipeline internal cleaning equipment, disclose a kind of scale cleaning equipment in heating and ventilation pipeline inside, including base, it is characterized in that, the upper side of base is fixedly connected with load-bearing support, the upper side of load-bearing support is sequentially head-tail rotationally connected with multiple snake bone joints, each snake bone joint includes thimble and two pull rods, two pull rods are fixedly connected to the lower side of thimble respectively, and two pull rods are symmetrically distributed, two sides outside each thimble are respectively provided with limiting slot, the utility model can make the snake bone structure of multiple thimble groups make various space swing angles by servo motor pulling steel wire rope, turning, obstacle-crossing ability is stronger, so that high-pressure water gun assembly can shuttle in any heating and ventilation pipeline scene containing tee branch, can all be responsible for the work of cleaning pipeline internal scale.

The invention discloses a pelvic cavity tissue implantation teaching model body and a teaching evaluation method, and the model body comprises a pelvic cavity shell model body which is used for simulating an external anatomical structure of a human pelvic cavity and can be detached into two parts which are in bilateral symmetry, and the interiors of the two parts respectively comprise pelvic bone structures; the target region endangered organ die body is arranged in a space formed by folding the left part and the right part of the pelvic cavity shell die body and is used for simulating a real target region tissue and a surrounding organ at risk, and two parallel gaps which are spaced at a fixed distance are formed in the die body; the coordinate paper acquisition system comprises two pieces of coordinate paper which are arranged in parallel, and the two pieces of coordinate paper are respectively arranged in two parallel gaps on the target region endangered organ mold body and are used for recording the spatial position information of the implanting needle; and the connecting handle is detachably connected with the target region endangering organ die body through a first standardized interface, and a whole formed by connecting the target region endangering organ die body and the connecting handle is detachably connected with the left part and the right part of the pelvic cavity shell die body through a second standardized interface.

This invention relates to a skeletal action recognition method based on spatiotemporal topology learning, belonging to the field of computer vision and artificial intelligence technology. The method includes: constructing a two-dimensional topology coding module to simultaneously capture the static and dynamic topological relationships of the skeletal structure; employing a multi-level spatial attention aggregation module to adaptively weight and aggregate skeletal features at different levels to enhance the expressive power of key nodes and edges; and designing a temporal dynamic sequence pooling method to extract high-order dynamic information from time-series data based on a dynamic modality decomposition strategy, thereby improving the accuracy of action recognition. The advantages are: this method can fully utilize the spatiotemporal structural information of the skeleton data to achieve accurate recognition of human actions, while improving the modeling ability for complex dynamic behaviors, avoiding the limitations of traditional methods in capturing high-order dynamic information.

The application relates to a bendable electrode with a liquid channel and a system thereof, and belongs to the technical field of orthopedic surgical instruments. The bendable electrode comprises a handle, a plasma electrode and an insertion part. The insertion part is connected to the handle at one end, and comprises an outer tube and an inner tube. The outer tube is movably arranged in the handle at a proximal end and can move along the axis direction of the outer tube, and the distal end of the outer tube is provided with an outer bendable section. The inner tube is arranged in the outer tube, and the proximal end of the inner tube is fixedly connected to the handle, and the distal end of the inner tube is provided with an inner bendable section. The plasma electrode is arranged at the distal end of the inner bendable section, and is provided with a liquid injection port. The inner and outer tubes with multi-dimensional adjustment capacity are arranged in the insertion part, the snake bone structure is matched with the telescopic outer tube, and the electrode system can realize flexible guidance and multi-angle accurate positioning in a complex surgical path.

Robotic surgical procedures are successively performed on a patient's bony anatomy by engaging the patient's bony anatomy with a first tool or implant coupled to a first surgical robotic arm to perform a first procedure. A second tool or implant coupled to a second surgical robotic arm is then used to perform a second procedure while the first surgical robotic arm and the first tool or implant remain engaged with the patient's bony anatomy to stabilize the bony anatomy while the second procedure is being performed with the second surgical robotic arm and second tool or implant.

The application discloses a processing method and device of a 3D printing module dissection teaching model of a nasal cavity and nasal sinus, which can be widely applied in the technical field of teaching data processing. After real nasal cavity and nasal sinus image data are acquired, a 3D virtual model including a bone structure virtual model, a soft tissue structure virtual model, a nerve and blood vessel virtual model or a skull base and eye socket virtual model is constructed according to the real nasal cavity and nasal sinus image data, then a printing process of the 3D printing module dissection teaching model is performed according to the 3D virtual model, so as to obtain a 3D printing module dissection teaching model with a proportion of 1:1 with the real nasal cavity and nasal sinus image data, and nasal cavity and nasal sinus dissection teaching is performed according to the 3D printing module dissection teaching model, so that the nasal cavity and nasal sinus structure can be restored by the 3D printing module dissection teaching model, and the 3D printing module dissection teaching effect of the nasal cavity and nasal sinus is effectively improved.

The invention belongs to the technical field of medical intelligent auxiliary systems, and particularly relates to a haptic editing system capable of being mixed with a quick virtual editing function of a real surgery, which comprises a data acquisition module used for acquiring multi-source volume data of a human body, reconstructing a digital three-dimensional model containing a bony structure, soft tissue and vascular nerves based on the multi-source data, and outputting the reconstructed digital three-dimensional model; in combination with a mixed reality space mapping technology, generating a virtual surgery scene with virtual-real fusion; the interaction control module is used for carrying out organization layering and deformation parameter space construction on the virtual operation scene data to obtain three-dimensional operation scene analysis data; and the application output module is used for analyzing the three-dimensional operation scene analysis data and the operation interaction mechanics data to generate a standard degree evaluation report and risk early warning information. According to the system, a brand-new virtual operation training platform is provided for operation workers through the mixed reality (MR) technology and the haptic interaction technology.

The embodiments present a system and method for generating motion of a 3D character using rotation range constraints based on joint-specific biomechanical information based on artificial intelligence. A method according to one embodiment receives a text prompt for generating motion of a 3D character from a user terminal, inputs the text prompt into a text encoder to generate a text condition vector, obtains skeleton configuration parameters including a character type, an active joint set, and a character proportional parameter based on the text condition vector, generates skeleton structure information including joint list information, joint connection information, joint characteristic information, and joint rotation axis information based on the skeleton configuration parameters, inputs the character proportional parameter and the skeleton structure information into a biomechanics encoder to generate a biomechanics context vector including an allowable rotation range per joint, a joint type, and a bone length, inputs the text condition vector and the biomechanics context vector into a diffusion-based motion generation model to generate a rotation sequence per joint, transmits 3D motion data generated by applying the rotation sequence per joint to the user terminal, and performs scale adjustment and shift adjustment on the output feature vector generated in the graph transformer layer of the diffusion-based motion generation model using the biomechanics context vector.

The invention relates to a micropore abrasive drill with a telescopic tool bit, and belongs to the technical field of orthopedic instruments. The insertion part extends out from the far end of the holding part, and an accommodating channel is formed in the insertion part; the rotating shaft is coaxially arranged in the insertion part, and a tool bit is arranged at the far end of the rotating shaft; the insertion part adjusting device is movably installed on the holding part and used for driving the rotating shaft to move in the axial direction relative to the insertion part and adjusting the length of the part, stretching out of the far end of the insertion part, of the tool bit. Depth control is changed from manual whole machine feeding control to precise mechanism adjusting local feeding control, the grinding depth can be precisely controlled according to individual differences of patients, and the problem that the effect is affected by too shallow hole sites or the inferior bone structure is damaged due to too deep hole sites is effectively solved.

Systems and methods of detecting a presence of opacification or pneumatization in skeletal structures of patients are disclosed. The systems and methods include receiving images, processing the images using a convolutional neural network, and generating, with the convolutional neural network, an opacification score for the image. Systems and methods include training the convolutional neural network to delineate skeletal structure pixels within a computed tomography scan image and to generate an intensity value for each skeletal structure pixel within a computed tomography scan image to determine an opacification score for the computed tomography scan image.

The invention belongs to medical instruments, and particularly relates to a snake bone structure and a bronchoscope. Wherein the snake bone structure comprises a plurality of snake bone unit sections, and the multiple snake bone unit sections are sequentially hinged in the preset direction; wherein one of any two adjacent snake bone unit sections is provided with a male connector, the other one of the two adjacent snake bone unit sections is provided with a female connector matched with the male connector, and the male connector and the female connector are connected in an inserted mode and are in hinged fit, so that the two adjacent snake bone unit sections can relatively deflect; moreover, when the two adjacent snake bone unit sections relatively deflect to the maximum angle, a plurality of mutually independent supporting parts are formed between the male joint and the female joint, and meanwhile, the supporting parts abut against each other for limiting matching. In this way, the supporting stability and tensile strength of the snake bone structure in the limit deflection state can be improved, the overall anti-fatigue performance of the snake bone structure is improved, and the service life of the snake bone structure is prolonged; and the accuracy and reliability of the bending action of the snake bone structure can be guaranteed.

The invention relates to the technical field of orthopedic surgery navigation, and discloses an orthopedic surgery navigation system based on an AR technology, and the method comprises the steps: obtaining skeleton structure data of a patient through MRI scanning, carrying out the segmentation and reconstruction of original data through an image processing algorithm, and extracting a three-dimensional model of a skeleton structure; tracking and positioning the key feature region according to the extracted three-dimensional model of the skeletal structure so as to realize real-time tracking of the skeletal structure of the patient; constructing a virtual operation scene according to the skeleton structure data of the patient, and vividly rendering a skeleton model, an operation tool, a tissue and other elements by using a computer graphics technology; performing sensor calibration on the AR equipment and the surgical workstation, determining the position and direction of the AR equipment in the space by using a preset reference point or a marker, and establishing a mapping relation of a camera-world coordinate system; and performing virtual-real fusion on pre-planned navigation information and the actual skeleton structure of the patient according to the skeleton structure tracked in real time and the reconstructed operation scene, and superposing the navigation information in the visual field of a doctor in a virtual form through AR equipment to guide the doctor to perform an operation.

The invention discloses a foldable skeleton for medical care based on man-machine cooperation, and particularly relates to the technical field of intelligent medical auxiliary equipment. The framework comprises a sliding support and a device frame, sliding wheels are arranged at the bottom of the sliding support, and the top is slidably connected with the device frame through a first cylindrical sliding rod. A turnover chair panel and a transmission mechanism for driving the turnover chair panel to move are arranged on one side of the device frame, and a foldable bed assembly capable of being pulled out is arranged in the other side of the device frame. The device frame is further symmetrically connected with handrails, and auxiliary walking assemblies of bionic lower limb exoskeleton structures are arranged at the bottoms of the handrails. By integrating multiple functions of a seat, a sickbed, walking assistance and the like and adopting motor driving, flexible conversion and cooperative work of all components are achieved, and the problems that existing medical nursing equipment is single in function, low in space utilization rate and difficult to adapt to variable nursing scenes are effectively solved; the nursing efficiency and the comfort and autonomous activity ability of the patient are obviously improved.

A body area network architecture is described that establishes a communication standard using the body as the physical medium. By leveraging vascular conductivity and bone resonance, the system enables the autonomous monitoring and correction of physiological states in a closed-loop artificial homeostasis. The invention integrates metabolic energy harvesting mechanisms to power biocompatible micro-nodes and a security protocol based on the unique biological identity of the data stream. The system employs digital modulation processes to transmit biosignals through fluids and skeletal structures, eliminating reliance on external radio frequencies.This technology is applicable in precision medicine, industrial safety and advanced human-machine interface systems, providing a redundant, encrypted and ultra-low power communication infrastructure for continuous monitoring of vital parameters without external electromagnetic interference.

The utility model discloses a combined waist support belt with partitioned directional air pressure traction and salient point pressing, which comprises a waist belt main body, belt wings are integrally arranged at two ends of the waist belt main body, elastic pressurizing belts are symmetrically arranged on the outer surface of the waist belt main body, and the elastic pressurizing belts are connected with slide fasteners in a sleeving manner after being folded and are welded on the outer surface of the waist belt main body. The sliding buckle is further sleeved with an inelastic pressurizing belt, after the inelastic pressurizing belt is folded, the end of the inelastic pressurizing belt is welded with a pressurizing belt hook and loop fastener, the belt wings are welded with waistband hook and loop fastener cloth, the pressurizing belt hook and loop fastener adheres to the waistband hook and loop fastener cloth, and a spine protrusion gap structure is arranged in the middle of the outer surface of the waistband body. The spine protrusion gap structures are recessed inwards to form protrusions on the outer surface of the waistband body. The sheet-shaped waist-basin soft support is arranged in the waist-basin support, the supporting range of the sheet-shaped support is larger than that of a strip-shaped support, the transverse supporting design at the bottom of the waist-basin soft support can protect lumbar major muscles and meanwhile better conform to the pelvis structure of the human body, and the waist-basin support also has a certain bearing effect on the pelvis while protecting the waist.

Methods and instruments for placement of orthopedic implants in bones of a patient. The placement may include selective placement of the implant relative to structure of the bone using a measurement system that may detect interfaces between layers of the bone. The orthopedic implants may be engaged by various embodiments of chucks. The chucks may include structure for engaging indexing features of a corresponding orthopedic implant to restrict movement of the implant relative to the chuck along a working axis. The chucks may allow for use of an instrument having a measurement system for accurate and repeatable placement of the implants using the instrument.

The invention discloses a medical intubation guide wire structure and a device with the structure, and relates to the technical field of medical instruments, the structure comprises a controllable bending part, the controllable bending part comprises a plurality of nodes of a cylindrical structure, and the nodes are sequentially connected through connecting ribs; the reinforcing wires are arranged in the nodes and the connecting ribs in a penetrating mode in the length direction of the controllable bending component; the nodes are provided with at least one first threading hole, and the orientations of the first threading holes between the nodes are in one-to-one correspondence; the diameters and the lengths of all the nodes and all the connecting ribs are configured to enable the controllable bending part to be bent in the connecting line direction of all the first threading holes; the controllable bending part is sleeved with a protection pipe. The multiple nodes are connected in series through the connecting ribs to form a split snake bone structure, controllable bending action can be achieved, and convenience is provided for daily medical catheter guide wire work.

The invention provides a three-dimensional modeling method and system for an oral implant. The method comprises the following steps: dividing a target oral region into a plurality of implant function units; performing multi-parameter constraint optimization on the design variables of the implant through the constraint of the safe distance between the implant size and the tooth root bone structure of the target oral cavity region and the occlusal force distribution constraint among the implant function units to obtain an implant parameterized model of the target oral cavity region; performing finite element biomechanical simulation on stress distribution and displacement conditions of the implant parameterized model under the chewing load through the implant parameterized model to obtain a biomechanical load value of the implant parameterized model; and when the biomechanical load value is greater than a preset biomechanical performance threshold value, performing iterative collaborative optimization on the implant parameterized model, and outputting a three-dimensional functional model of the target oral cavity area implant. Based on the scheme, mechanical collaborative optimization in three-dimensional modeling of the oral implant can be realized.

The utility model discloses an engineering construction composite artificial bone based on architectural engineering and a manufacturing method thereof, the engineering construction composite artificial bone comprises a bioactive material and a mechanical support bracket, the bioactive material is used as a main body, the mechanical support bracket is contained in the bioactive material, and the bioactive material and the mechanical support bracket are tightly combined to form an artificial bone tissue complex. The mechanical support bracket can provide mechanical support for the artificial bone tissue complex so as to meet the load requirement in the bone repair process. The artificial bone tissue complex can further achieve one or more functions through surface modification and / or a carrying structure used for carrying a bone growth promoting material release system and / or a drug release system arranged in the artificial bone tissue complex so as to meet the clinical requirements of anti-inflammation, anti-infection, anti-tumor, anti-osteoporosis, bone integration promotion and the like. According to the utility model, the osseointegration performance and the mechanical property of the material are considered, and a new scheme is provided for large-area bone defect repair, bone structure filling and supporting and parts needing long-term load bearing.

The application relates to the technical field of virtual reality, and provides a three-dimensional human body model and skeleton synchronous updating method and an electronic device. An initial three-dimensional human body model and a preset skeleton are initialized to determine a plurality of target geometric vertices associated with each skeleton node, an influence weight corresponding to each target geometric vertex, and a scaling ratio between a child skeleton node and a parent skeleton node. The initial three-dimensional human body model is driven in a non-skeletal animation mode, the three-dimensional coordinates of the geometric vertices after driving are obtained, the three-dimensional coordinates of each skeleton node are reversely calculated according to the three-dimensional coordinates of the geometric vertices after driving and the initialization result, the skeleton structure of the preset skeleton is updated according to the three-dimensional coordinates of each skeleton node, a skeleton matching the target three-dimensional human body model is obtained, the consistency of the skeleton in the model animation process is ensured, the synchronous updating of the skeleton after the driving of the three-dimensional human body model is realized, and the authenticity of the model when performing skeletal animation based on the updated skeleton is improved, and the storage space occupied by the animation data is saved.

A poultry processing system for inline processing a poultry carcass front half. The system comprises a mandrel having a plane of symmetry in a vertical orientation for supporting a carcass front half having a neck end and a tail end with its skeletal structure including a keel bone on top of the mandrel with the keel bone aligned with the plane of symmetry of the mandrel. The system comprises a conveyor for conveying the mandrel in a horizontal conveyance direction. The mandrel is coupled to the conveyor in a fixed orientation relative to the conveyance direction in which the plane of symmetry aligns with the conveyance direction. The system comprises a poultry processing station in a conveyance path of the conveyor. The poultry processing station comprises a processing member for engaging the carcass front half as the carcass front half is conveyed on the mandrel in the fixed orientation along the poultry processing station. The processing member is movable relative to the conveyor along a trajectory within a vertical plane parallel to the plane of symmetry between a first position for allowing the carcass front half to pass the processing member, and a second position for engaging the carcass front half.

Adapters for surgical drilling systems, and methods of use, are provided for performing surgical procedures, such as surgical drilling into bony structures, while guided by a conductivity sensing system. The adapters may be configured to be coupled to a surgical drilling tool such as a conventional surgical drill and a drill bit having conductivity sensing capabilities, e.g., via a sensing drill bit, or a surgical hand tool having conductivity sensing capabilities. The adapters further include a controller configured to receive one or more signal indicative of measured electrical conductivity and / or penetration depth measurement, detect a condition associated with a change of measured electrical conductivity based on the signal, and arrest advancement of the surgical drilling tool responsive to detection of the condition.

The invention discloses a preparation method of an interpenetrating phase ceramic dental material, and belongs to the technical field of biomedical materials. Bionic design is carried out based on a porous foam structure and a cavity tissue of bird bones, two bionic bird bone structures combining annular tongue bone structure characteristics and the cavity tissue are established, mortise and tenon matching design is carried out according to a bird skull collaborative vibration reduction mechanism, and the bionic bird bone mortise and tenon structure with collaborative bearing and buffering characteristics is constructed. Compared with a traditional structure, the structure has more excellent mechanical bearing performance and deformation stability. According to the zirconia-hydrogel interpenetrating phase material prepared by a photo-crosslinking method, due to the composite design of a soft-phase material and a hard-phase material, the energy absorption characteristic of the material is remarkably improved, and meanwhile, the fracture toughness of a dental material is effectively improved. On the basis, a functional coating is constructed on the surface of the material by adopting a sol-gel dip-coating process, so that the problem that the dental material is insufficient in corrosion resistance and wear resistance in an oral environment is further solved.

The invention discloses an adolescent scoliosis screening method and system, and relates to the technical field of scoliosis screening, and the method comprises the following steps: S1, carrying out the multi-modal data collection of an adolescent spine, and carrying out the standardization processing in the multi-modal data collection process, the multi-modal data comprises an ultrasonic image, an X-ray image, a back surface image, three-dimensional scanning data and motion capture data; s2, performing image cutting and adjustment, gray level conversion and normalization, noise removal, enhancement processing, labeling processing and multi-modal data registration on the multi-modal data to form a pre-processed multi-modal data set; according to the invention, ultrasonic, X-rays, back surface images, three-dimensional scanning and motion capture data are fused, radiation-free detection, bony structure evaluation, static form and dynamic functions are considered, and multi-dimensional information required by scoliosis screening is fully covered. A high-resolution HRNet model is adopted, and automatic and high-precision detection of spine key points is achieved.

The invention relates to the technical field of medical image processing, in particular to a joint structure three-dimensional anatomical model construction system and a computer storage medium. A set of full-automatic and integrated processing system from image input, preprocessing and intelligent segmentation to three-dimensional reconstruction and optimized output is constructed; firstly, the image quality and consistency are remarkably improved through a targeted preprocessing module; based on a built-in segmentation model, the segmentation model is fused with a deep learning architecture of a two-dimensional sub-model and a three-dimensional sub-model, and high-precision and robust automatic segmentation of a joint structure and a multi-bone structure is realized; on the basis, a three-dimensional grid model which is geometrically accurate, topologically complete and can be directly applied to a downstream platform is generated through an optimized reconstruction and smoothing algorithm, the whole processing flow can be completed within a few minutes, and the efficiency, the precision and the practicability are remarkably improved.