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60 results about "Lung lobe" patented technology

The lung consists of five lobes. The left lung has a superior and inferior lobe, while the right lung has superior, middle, and inferior lobes. Thin walls of tissue called fissures separate the different lobes.

Breathing feature extraction method and device for chest and abdomen body surface point cloud partitioning by considering lung physiological structure, readable storage medium and computer program product

The invention belongs to the field of lung medical data processing and radiotherapy, and discloses a respiratory feature extraction method for chest and abdomen body surface point cloud partitioning by considering a lung physiological structure. After the body surface point cloud image is differentiated, correlation coefficient calculation is carried out according to a lung lobe model reconstructed by a lung 4DCT image, a body surface area highly correlated with a lung lobe structure is selected to carry out motion information dimension reduction recombination, and finally body surface global features of breathing are represented in a three-dimensional vector form. Compared with the prior art, the method has the advantages that the influence of the lung physiological structure on the lung tumor movement mode is creatively considered, meanwhile, the advantages of being noninvasive and free of extra dosage are kept, a new thought can be provided for development of the radiotherapy image guide technology, and further research in the field of thoracic and abdominal activity tumor radiotherapy is facilitated.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for carrying out lung lobe region segmentation on SPECTV / Q image by using deep learning model

The invention discloses a method for performing lung lobe region segmentation on an SPECTV / Q image by using a deep learning model, and relates to the technical field of medical image processing, and the method comprises the steps: obtaining SPECTV / Q image data, and generating a to-be-segmented image; performing multi-scale feature extraction on the to-be-segmented image to generate a shallow feature map and a deep feature map; performing threshold masking on the lung lobe segmentation probability graph to generate a binary mask; performing morphological operation based on the binary mask, and performing background noise elimination to generate a binary lung lobe mask; according to the method, the to-be-segmented image is input into the U-Net model, convolution and maximum pooling operations are executed by using the coding path to gradually extract the multi-scale feature map, the precision and robustness of lung lobe region segmentation are significantly enhanced, and the segmentation accuracy and robustness of the lung lobe region are improved. And a reliable technical basis is provided for quantitative analysis of lung functions.
Owner:JILIN UNIVERSITY

Pneumonic medical data analysis and processing method, system and equipment and storage medium

The invention provides a pneumonia medical data analysis and processing method, system and device and a storage medium, and belongs to the field of medical image processing. Multi-scale features of the lung CT image are extracted layer by layer through convolution, global pooling operation down-sampling is carried out based on the multi-scale features, and saliency features of lung lobe and lesion areas are captured from local details to global semantics; performing convolution and multi-scale pooling on the saliency features to generate a feature map fusing global and local information; and recovering the feature map through layer-by-layer up-sampling to obtain a segmentation result of the lung lobe and the focus. Quantitative indicators are calculated based on regions and pixels of the segmentation results of the lung lobes and lesions. And performing model processing based on the quantitative index, the segmentation result of the lung lobe and the focus and clinical data of the lung lobe and the patient to obtain pneumonia focus characteristic data. And a doctor can conveniently make an objective and reasonable treatment scheme according to a result of lesion segmentation and feature data calculation based on the pneumonia lesion feature data.
Owner:NORTHWEST UNIV

Individualized Whole-Lung Deposition Model

An innovative imaging-based subject-specific whole-lung deposition model is provided. Computed tomography (CT) lung volumetric images at total lung capacity (TLC) may be used to segment airways and lobes, and registration of CT images at TLC and functional residual capacity (FRC) provided metrics of regional air volume changes. A volume-filling technique may then be used to generate the entire conducting airways and acinar units. In each acinar unit, a respiratory airway model may be generated based on existing morphometric data. The flow distributions in conducting airways and to acinar units may be calculated by a one-dimensional (ID) computational fluid dynamics (CFD) model. With the simulated airflow field, deposition fractions may be calculated using deposition probability formulae adjusted with an enhancement factor to account for the effects of transient secondary flow and realistic airway geometry.
Owner:THE UNIVERSITY OF IOWA RESEARCH

A new type of lobular magnetic shielding partial discharge detection device and detection method

The application discloses a novel lung lobe-shaped magnetic shielding partial discharge detection device and a detection method. The device comprises an isolation transformer, a bushing, a detection electrode and a partial discharge instrument. A single-phase power supply is connected with a reactor in parallel, and then connected with an input end of the isolation transformer. One end of an output end of the isolation transformer is connected with the bushing, and then connected with the detection electrode. The other end of the output end of the isolation transformer is grounded. A grounding end of a to-be-detected lung lobe-shaped magnetic shielding is grounded, and the grounding end of the to-be-detected lung lobe-shaped magnetic shielding is connected with the partial discharge instrument. The to-be-detected lung lobe-shaped magnetic shielding and the detection electrode are correspondingly arranged to form an equivalent capacitor and are coupled and connected. The application can be used to determine whether there is a defect in the lung lobe-shaped magnetic shielding by performing a partial discharge test on the lung lobe-shaped magnetic shielding before the lung lobe-shaped magnetic shielding is assembled into a transformer. The application has the characteristics of high test efficiency and low applied voltage, and greatly improves the first-time pass rate of the transformer product provided with the lung lobe-shaped magnetic shielding.
Owner:CHANGZHOU TOSHIBA TRANSFORMER

A lung ventilation-perfusion map image segmentation and quantitative analysis system

The application discloses a lung ventilation-perfusion imaging area image segmentation and quantitative analysis system and relates to the technical field of medical image analysis.The system comprises a data acquisition module, which acquires SPECT V / Q image data and case information corresponding to the SPECT V / Q image data, and generates a structured data set; a feature extraction module, which performs format conversion and multi-scale feature extraction on the SPECT V / Q image data in the structured data set, and generates a compressed feature map data set; a lung lobe segmentation module, which inputs the compressed feature map data set into a U-Net model, segments lung lobe areas, performs post-processing, and generates a lung lobe area mask image; and an image fusion module, which performs alpha blending fusion on the lung lobe area mask image and the SPECT V / Q image data, and generates a color fusion image.The application captures lung alveolus-to-lung lobe structure by fusing four branch features of a hollow pyramid network, and reduces GPU memory consumption.
Owner:JILIN UNIVERSITY

A percutaneous lung puncture path planning method based on pulmonary segment level blood vessel structure constraint

The application discloses a percutaneous lung puncture path planning method and device based on lung segment level blood vessel structure constraint, and the method comprises the following steps: performing isotropic resampling, lung lobe segmentation and bronchial tree extraction on CT image data to generate a three-dimensional lung dissection model; inputting the three-dimensional lung dissection model into a lung segment semantic segmentation module to output a lung segment boundary; reconstructing the topological connection relationship between lung segment level blood supply arteries and drainage veins from the lung segment boundary to obtain a structured lung segment level blood vessel atlas; constructing a dynamic puncture risk field voxel map according to the structured lung segment level blood vessel atlas; sampling a plurality of candidate needle entry points in a surface feasible needle entry region to generate an initial path set in the three-dimensional lung dissection model; and weighting the path length, cumulative risk value, puncture angle penalty and high-density lung tissue volume according to a multi-objective optimization function to output a final puncture path. The application significantly improves the safety boundary and clinical applicability of percutaneous lung puncture.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Prediction device and prediction model for predicting probability of complications after pulmonary lobectomy or sub-pulmonary lobectomy and application of prediction device and prediction model

PendingCN120674065AMechanical/radiation/invasive therapiesHealth-index calculationLung resectionsPostoperative management
The invention relates to the technical field of medical treatment, in particular to a prediction device and a prediction model for predicting the probability of complications after pulmonary lobectomy or sub-pulmonary lobectomy and application of the prediction device and the prediction model. Aiming at prediction errors of an AS method and a QCT traditional mode at present, the invention finds that FEV1QCT (postoperative FEV1 value estimated based on QCT) is an independent prediction factor of short-term pulmonary complications after lung cancer lobectomy or sub-lobectomy through research, and a model based on QCT has relatively high prediction performance; the specific technical scheme of the prediction device for predicting the probability of the complications after the pulmonary lobe or sub-pulmonary lobe resection, the prediction model comprising the column diagram and used for predicting the probability of the complications after the pulmonary lobe or sub-pulmonary lobe resection and the application of the prediction model are obtained and provided, and the prediction accuracy of the PC after the pulmonary segmental resection is improved. Personalized selection of appropriate operation schemes and postoperative management schemes is facilitated, and the living quality and prognosis of patients are improved.
Owner:FUJIAN MEDICAL UNIV UNION HOSPITAL

Tip-controlled bronchial cannula

The application discloses a controllable tip bronchial cannula, which comprises a tracheal catheter, a first inflatable cuff and a second inflatable cuff which are arranged on the outer wall of the tracheal catheter at intervals, wherein at least one ventilation hole is arranged on the tracheal catheter between the first inflatable cuff and the second inflatable cuff, the ventilation hole penetrates the tracheal catheter wall and communicates with the lumen of the tracheal catheter; an elastic film is arranged in the lumen of the tracheal catheter, the elastic film is provided with at least one third opening which communicates with the lumen of the tracheal catheter, and the third opening is arranged in a staggered mode with the ventilation hole; and a control component is further arranged, which is used for controlling the elastic film to switch between closing the ventilation hole and opening the ventilation hole. The bronchial cannula of the application makes the airway management of lung isolation more refined, breaks through the traditional left / right lung isolation, and realizes the precise physical isolation of the operation area and the non-operation area in units of lung lobes.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1

Pulmonary nodule real-time positioning method and device based on artificial intelligence multi-modal image fusion technology and applied to sub-pulmonary lobe resection operation

The invention discloses a pulmonary nodule real-time positioning method and a pulmonary nodule real-time positioning device based on artificial intelligence multi-modal image fusion technology applied to a sub-pulmonary lobe resection operation, which are applied to the technical field of data processing, a three-dimensional collapsed lung model is generated by acquiring a lung medical image and a three-dimensional model in combination with operation parameters, and features of the three-dimensional collapsed lung model are automatically identified. Endoscope dynamic images are collected in real time in an operation, and the three-dimensional collapse lung model is finely adjusted after image features are extracted, so that the three-dimensional collapse lung model is accurately matched with an actual lung tissue form in the operation. By means of the artificial intelligence multi-mode image fusion technology, the endoscope image and the three-dimensional model are deeply fused, and the lung three-dimensional structure and the accurate pulmonary nodule position under the endoscope view field are presented in real time. By integrating artificial intelligence, computer vision, a collapse algorithm and a multi-modal image fusion technology, a doctor is assisted to clearly identify lung tissue and nodule positions in an operation, the accuracy of the operation is effectively improved, the operation time is shortened, and the operation is safely completed with high quality.
Owner:XIAMEN BAILU XIANGYUN TECHNOLOGY CO LTD +1

An augmented reality glasses assisted preoperative virtual localization system for pulmonary nodules

PendingCN122435015APulmonary noduleLung lobe
The present application relates to the technical field of medical data processing, in particular to a kind of lung nodule preoperative virtual positioning system assisted by augmented reality glasses, including memory and processor, the processor executes the computer program stored in the memory, to realize: the construction of lung lobe tubular structure lung lobe tubular structure chart;According to the distance distribution between nodes and blood vessel attribute information, the basic attribute parameter of each edge is obtained, the current surface gripping point and lesion center point are acquired;Obtain transverse attenuation factor and axial projection factor, determine the deformation resistance weight of each edge in combination with basic attribute parameter;According to the deformation resistance weight of the edge accumulated between the nodes corresponding to the current surface gripping point and lesion center point, the deep displacement transmission degree is obtained;According to deep displacement transmission degree and the pulling direction of surgical instrument, the lesion center point position is corrected to obtain the corrected lesion position.The present application ensures that the virtual nodule rendered in AR glasses is accurately matched with the position of deep real lesion.
Owner:TIANJIN FIRST CENT HOSPITAL

Magnetic navigation trachea cannula system based on visual laryngeal mask

The invention discloses a magnetic navigation tracheal intubation system based on a visual laryngeal mask, and relates to the technical field of tracheal intubation, the magnetic navigation tracheal intubation system comprises a tube body, a skeleton is embedded in the tube body, an alarm is fixedly mounted on the tube body, when the tube body is bent, the skeleton transmits a signal to the alarm to remind a worker, and a cuff is mounted on the tube body. The sleeve bag is communicated with a strip-shaped box through a connecting hose, an inflation assembly is installed in the strip-shaped box, a pipeline is arranged in the catheter body, a through hole is formed in the catheter body, a breather pipe is slidably connected into the pipeline and used for ventilating lung lobes on the other side, a Murphy hole is formed in the end of the catheter body, and the Murphy hole and the through hole are both located below the sleeve bag. Bending deformation of the tube body is detected through the built-in framework, alarm is triggered in real time, medical staff can conveniently make adjustment in time, it is guaranteed that gas can be normally exchanged after the trachea is smoothly inserted, and operation safety is improved; the sliding connection of the pipeline and the breather pipe supports selective ventilation of unilateral or bilateral lung lobes, and the requirement for complex airway management is met.
Owner:THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV

3D printing type lung model for doctor-patient communication

The utility model relates to a medical auxiliary instrument. The utility model aims to provide a 3D printing type lung model for doctor-patient communication. The 3D printing type lung model comprises a lung model main body formed through 3D printing according to lung data of a patient; the lung model main body comprises a hollow lung lobe body formed by splicing two mold flaps, a trachea body formed on the lung lobe body in a heterochromatic 3D printing manner, and a focus body formed on the lung lobe body and / or the trachea body in a heterochromatic 3D printing manner; the lung lobe body is further provided with at least one hollow observation opening used for observing a focus body. According to the utility model, actual lung data 3D printing forming of a patient is adopted, the lung focus space structure of the patient can be fully and visually displayed, and accurate communication between a doctor and the patient is facilitated; 3D printing is conducted on the lung lobe body, the trachea body and the focus body through different colors, and the whole lung and the structure of the lung of the patient can be displayed in a layered mode more clearly.
Owner:ZIGONG THIRD PEOPLES HOSPITAL

Inflatable high-frequency chest wall oscillation sputum excretion vest for home use

The invention relates to the technical field of medical instruments, and discloses a household inflatable high-frequency chest wall oscillation sputum excretion vest which comprises an air pulse main machine and a vest body, an adjusting assembly is arranged between the air pulse main machine and the vest body, and a locking buckle belt is fixedly installed on one side of the front face of the vest body. The adjusting assembly comprises an outer annular cylinder and an inner annular cylinder which are fixedly installed on one side of the air pulse main machine, the inner annular cylinder is located on the inner ring of the outer annular cylinder, by arranging the adjusting assembly, inflated air can sequentially enter all the inflation grooves through the inflation cavity, exhausted air can return to the inner communication groove through the deflation groove and the deflation cavity, and the air pulse main machine can be adjusted. According to the device, the air bag parts are inflated and deflated in sequence, so that the air bags are locally inflated and vibrated in sequence according to the trend of the bronchus lung section of an operator and the lobe of the lung, and the vibration sputum excretion effect on the operator is improved.
Owner:NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL

Tracheal catheter capable of moving back and forth

The utility model belongs to the technical field of medical instruments, and particularly relates to a tracheal catheter capable of moving back and forth, which comprises a catheter body, three side holes are formed in the periphery of the bottom end of the catheter body, three blocking pieces are arranged on the periphery of the interior of the bottom end of the catheter body, and limiting strips are arranged on the two sides of each blocking piece. The middle position of the upper end of the blocking piece is fixedly connected with a lifting line. An inner air bag is fixedly connected to the periphery of the outer wall of the bottom end of the tube body, a plurality of upper connecting strips are fixedly connected to the periphery of the outer wall of the upper end of the inner air bag, a plurality of lower connecting strips are fixedly connected to the periphery of the outer wall of the bottom end of the inner air bag, and an outer air bag is arranged on the periphery of the outer portion of the inner air bag. According to the utility model, the front end of the tube body is provided with the three side holes which can be lifted to control opening and closing, the inner air bag and the outer air bag are arranged outside the tube body, and the tube body and the inner air bag can move back and forth relative to the outer air bag, so that the side holes at the front end of the tube body can be better aligned to the upper lung lobe breathing opening, and oxygen supply of the lung lobe is facilitated.
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Acute lung injury model system suitable for nano plugging membrane repair effect evaluation, preparation method and application

The invention relates to the technical field of biomedicine, and particularly discloses a system of an acute lung injury model suitable for evaluating the repairing effect of a nano plugging membrane and a preparation method and application of the acute lung injury model. And an acute lung injury model coupled with dual functions of mechanical stretching and thermal injury is constructed in combination with the thermal effect of an electrotome. Compared with traditional modeling methods such as chemical induction or biological induction, the method has the advantages that the size of a lung lobe wound surface can be accurately controlled, standardized simulation of traumatic alveolar rupture pathological characteristics is realized, the technical bottlenecks of uncontrollable wound surface shape, positioning deviation of an injured part and the like of a traditional model are broken through, and the method is suitable for large-scale popularization and application. And an experimental carrier with high repeatability is provided for evaluating the sealing performance and the repairing efficiency of the nano plugging film in a dynamic pressure environment.
Owner:THE GBA NAT INST FOR NANOTECHNOLOGY INNOVATION

Bronchial cannula with controllable tip

The invention discloses a tip-controllable bronchial cannula which comprises a tracheal catheter, a first inflatable cuff and a second inflatable cuff, the first inflatable cuff and the second inflatable cuff are arranged along the outer wall of the tracheal catheter at intervals, and at least one vent hole is formed in the tracheal catheter between the first inflatable cuff and the second inflatable cuff. The vent hole penetrates through the wall of the tracheal catheter and is communicated with the cavity of the tracheal catheter; an elastic film is arranged in a tube cavity of the tracheal catheter, the elastic film is provided with at least one third opening communicated with the tube cavity of the tracheal catheter, and the third opening and the vent hole are arranged in a staggered mode; and the control part is used for controlling the elastic film to be switched between closing of the vent hole and opening of the vent hole. By the adoption of the bronchial cannula, airway management of lung isolation is finer, traditional left / right lung isolation is broken through, and precise physical isolation of a surgical operation area and a non-surgical operation area with the lung lobe as a unit is achieved.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1

Lung lobe magnetic shield flip assist tool

ActiveCN309802258SLung lobeTransformer
1. The name of the design product: lung lobe magnetic shielding flip auxiliary tool. 2. The use of the design product: used for the assembly of transformer parts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combined state reference drawing. 5. Other components that need to be explained: component 1: tray part; component 2: cover plate part; combined state reference drawing: combined state of the tray part and the cover plate part.
Owner:SHANDONG POWER EQUIP CO LTD

Intelligent control method and system based on full-chest vibration sputum excretion machine

The invention belongs to the technical field of medical rehabilitation instruments, and particularly relates to an intelligent control method and system based on a full-chest vibration sputum excretion machine, and the control method comprises the steps: obtaining a respiratory airflow signal and chest wall impedance of a patient; the current breathing phase of the patient is judged according to the continuous breathing airflow signals, and a vibration head of a corresponding lung lobe area is controlled to be activated to vibrate within a set frequency range; calculating a sputum fluidity index according to the chest wall impedance of different chest wall areas, wherein the sputum fluidity index is in positive correlation with the variable quantity and the vibration frequency of the chest wall impedance; the vibration parameters of the vibration head at the corresponding position are adjusted according to the size of the sputum fluidity index. According to the scheme, the targeting, efficiency and safety of sputum excretion are remarkably improved, and personalized and refined intelligent sputum excretion treatment is achieved.
Owner:ANYANG XIANGYU MEDICAL EQUIP

Atomization image analysis method for pulmonary ventilation function evaluation

The invention relates to the technical field of lung function evaluation, in particular to an atomization image analysis method for lung ventilation function evaluation. The method comprises the following steps: firstly, acquiring lung atomization images under various concentrations by changing the concentration of aerosol; based on image block level analysis, the lung is divided into different functional regions (such as lung lobe and airway regions), particle distribution difference characteristics of different image blocks are compared to quantify deposition indexes, and regional ventilation uniformity is reflected; sub-regions are further divided in combination with density clustering, the number change of atomized particles is analyzed across time points, and a metabolic rate index is calculated to represent local metabolic activity; and finally fusing the deposition index and the metabolic rate index to generate a ventilation obstruction evaluation value. According to the method, through space-time sequence multi-parameter coupling, the breathing mode and individual difference interference are effectively reduced, the ventilation function and the metabolism state are synchronously analyzed, a quantitative basis is provided for pulmonary ventilation disorder analysis, and evaluation comprehensiveness and clinical decision accuracy are remarkably improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF XIAN MEDICAL UNIV

An intelligent chest CT image processing system

The present invention discloses an intelligent chest CT image processing system, including an image acquisition module, a multi-scale filtering processing module, a frequency domain edge enhancement module, an edge fusion correction module, an enhancement loss design module, a chest CT image segmentation model establishment module, and a chest CT image processing module. The present invention belongs to the field of image processing, and specifically refers to an intelligent chest CT image processing system. This solution performs differentiated processing on noise characteristics in different spectrum bands, guiding the focus on retaining and enhancing the course of blood vessels; through edge fusion correction, it takes into account the adaptive enhancement of small-scale nodules and large-scale lesions; through branch A, the nodule edge and the weak contrast of artifacts are refined, and branch B strengthens the macroscopic consistency of the lung lobe; the decoding layer suppresses the learned area, the focused blood vessels, and the intersection of the lung parenchyma through interface focusing; the loss introduces boundary smoothing, optimizes the overall segmentation contour, and reduces false positive burr-like noise; thereby improving the accuracy of chest CT image processing.
Owner:THE SIXTH MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Method for constructing lung weight index based on chest CT image and application thereof

PendingCN122367900APulmonary-pulmonaryLung lobe
This invention discloses a method for constructing a lung weight index based on chest CT images and its application. The method includes: Step 1, low-dose CT image acquisition and preprocessing; Step 2, automatic segmentation of the lung and lung lobes; Step 3, calculation of the average density of lung lobes and conversion to physical density; Step 4, calculation of lung lobe volume; Step 5, calculation of lung lobe weight and whole lung weight; Step 6, construction of the lung weight index; Step 7, risk assessment based on the lung weight index. This method can be applied to practical scenarios such as lung cancer screening, health checkups, and image-assisted diagnosis. This invention comprehensively reflects the state of lung tissue, blood vessels, and interstitium through the lung weight index, providing a more holistic quantitative description. Furthermore, it does not require nodule detection as a necessary prerequisite, making it suitable for individuals with few nodules, small volume, or those who have not yet formed a definite mass, thus better meeting the practical needs of early lung cancer screening.
Owner:NANJING MEDICAL UNIV

Lung lobe and lung multi-organ segmentation and result presentation method and related products

The present disclosure provides a method for segmenting and presenting lung lobes and multiple lung organs and related products. The lung lobe segmentation method provided by the embodiment of the present disclosure assists in understanding the lung anatomical structure information through the original lung three-dimensional image and the tracheal connectivity map generated based on the lung three-dimensional image during the lung lobe segmentation process, thereby increasing the accuracy of lung lobe segmentation. In addition, the lung multi-organ segmentation and result presentation method provided by the embodiment of the present disclosure helps users understand the lung multi-organ segmentation results intuitively and vividly by synchronously presenting the three-dimensional objects of the lung nodule segmentation results, tracheal segmentation results, and lung lobe segmentation results, thereby reducing the difficulty of understanding.
Owner:ZHUHAI LIVZON CYNVENIO DIAGNOSTICS +1

Magnetic navigation endotracheal intubation system based on a visual laryngeal mask

The application discloses a magnetic navigation tracheal intubation system based on a visual laryngeal mask, relates to the technical field of tracheal intubation, and comprises a pipe body, wherein a framework is embedded in the pipe body, an alarm is fixedly installed on the pipe body, the framework transmits a signal to the alarm to remind a worker when the pipe body is bent, a cuff is installed on the pipe body, the cuff is connected with a strip-shaped box through a connecting hose, an inflation assembly is installed in the strip-shaped box, a pipeline is arranged in the pipe body, a through hole is formed in the pipe body, a ventilation pipe is slidably connected in the pipeline, the ventilation pipe is used for ventilating another lung lobe, a Murphy hole is formed in the end of the pipe body, and the Murphy hole and the through hole are located below the cuff. The application detects the bending deformation of the pipe body through the built-in framework, triggers an alarm in real time, is convenient for medical staff to make timely adjustment, guarantees that the gas can be normally exchanged after being smoothly inserted into the trachea, and improves the operation safety; and the sliding connection of the pipeline and the ventilation pipe supports selective ventilation of unilateral or bilateral lung lobes, and adapts to the complex airway management requirement.
Owner:THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV

A method and system for early warning of copd based on chest ct parameters

The present application relates to the field of medical imaging technology, specifically to a COPD early warning method and system based on chest CT parameters, comprising the following steps: based on chest CT image data, extracting pixel data of lung lobe anatomical region, segmenting airway tree structure, identifying bronchial wall boundary, screening gradient change points, and generating airway wall boundary point set. In the present application, by refining the lung lobe anatomical region, segmenting the airway tree structure, accurately positioning the bronchial wall boundary, calculating the airway wall thickness, correcting abnormal fluctuations, improving the stability of the thickness parameter, using the thickness parameter to calculate the airflow passage cross-sectional area, analyzing the lung lobe ventilation volume and ventilation change, quantifying the lung ventilation imbalance degree, screening the ventilation restricted area, analyzing the relationship between the wall thickness and the ventilation change rate, extracting the abnormal growth area, marking the ventilation restriction severity, setting the early warning threshold, calculating the abnormal index mean value, marking the risk area, enhancing the ventilation abnormality recognition hierarchy, and improving the early warning ability of COPD.
Owner:JIANGSU TAIZHOU PEOPLES HOSPITAL

A solar thermochemical reactor based on bionic lung

A solar thermochemical reactor based on a bionic lung comprises an outer shell and a bionic lung body installed therein, the outer shell comprising a cylindrical middle shell, with a truncated cone-shaped upper shell and a lower shell connected to both ends of the middle shell respectively; an annular step-shaped slot is provided in the middle of the inner wall of the middle shell, and the annular step-shaped slot is adapted to be plugged into the bionic lung lobes of the bionic lung body; sunlight passes through a focusing system of a circular mirror field, and the light energy is focused into a reactor located at the top of a tower, and enters the bionic lung body through an air inlet, where the gas reacts chemically with a catalyst; the design of the bionic lung body improves the contact efficiency between the gas and the catalyst, thereby increasing the chemical reaction rate, and at the same time, the heat generated by the reaction products inside the reactor is effectively transferred and distributed through the gaps between the bionic lung lobes, and then discharged from the reactor through an air outlet, thereby achieving the purpose of a thermochemical reaction; the present invention has the advantages of increasing the chemical reaction rate, reducing costs, and making the heat flow distribution more uniform.
Owner:XIAN AERONAUTICAL UNIV

System, preparation method and application of acute lung injury model suitable for evaluating the repair effect of nano-blocking membrane

This application relates to the field of biomedical technology and specifically discloses a system, preparation method, and application of an acute lung injury model suitable for evaluating the repair efficacy of nano-occluding membranes. This method, based on the synergistic mechanism of mechanical ventilation and thermal injury, achieves periodic dynamic stretching of lung tissue through a rapid inflation mode. Combined with the thermal effects of an electrosurgical unit, this model constructs an acute lung injury model with a dual-action coupling of "mechanical stretch and thermal injury." Compared to traditional modeling methods such as chemical or biological induction, this method can precisely control the size of lung lobe wounds and achieve standardized simulation of the pathological characteristics of traumatic alveolar rupture. This overcomes technical bottlenecks such as uncontrollable wound morphology and deviations in the localization of the injury site in traditional models, providing a highly reproducible experimental vehicle for evaluating the sealing performance and repair efficacy of nano-occluding membranes under dynamic pressure environments.
Owner:THE GBA NAT INST FOR NANOTECHNOLOGY INNOVATION

Real-time image enhancement and fusion system in thoracic surgery

The invention discloses a real-time image enhancement and fusion system in thoracic surgery, and belongs to the technical field of medical image processing. The system comprises an image acquisition module, a real-time enhancement unit, a multi-modal fusion unit, a data interaction unit, a display control unit and a storage unit. The image acquisition module is used for acquiring intraoperative endoscope and ultrasonic images and preoperative CT / MRI data; the real-time enhancement unit adopts an attention mechanism improved U-Net model to realize image real-time denoising and enhancement; the multi-modal fusion unit realizes accurate fusion through a dynamic registration algorithm (in combination with respiratory movement data); the data interaction unit guarantees low-delay transmission; the display unit supports three-dimensional image interactive display; the storage unit stores data in real time. The problems of low image definition, inaccurate fusion and poor real-time performance in the existing operation are solved, the key anatomical structure recognition precision can be improved by 30% or above, the operation time is shortened by 10%-15%, the complication occurrence rate is reduced by 50% or above, and the method is suitable for thoracic surgery operations such as lung lobe resection and esophageal cancer radical treatment and has remarkable clinical value.
Owner:中国人民解放军总医院第八医学中心

Collision Detection Method and System Based on Hybrid Bounding Box and Lung Anatomical Features

PendingCN122287259Areduce overlapAvoid Computational RedundancyLung lobeElement model
This invention discloses a collision detection method and system based on hybrid bounding boxes and lung anatomical features. The method includes: constructing bounding boxes for the lung, lung lobes, and lung segments based on a three-dimensional finite element model of the lung; determining intersecting lung segment bounding boxes using a breadth-first traversal algorithm; determining intersecting lung lobule bounding boxes using a depth-first traversal algorithm; and accurately detecting the collision position of a surgical instrument proxy ball using fine intersection detection to obtain the collision detection result. The depth-first traversal order is calculated based on the predicted positions of the lung segment bounding boxes and the surgical instrument proxy ball. This invention avoids the problems of computational redundancy and poor real-time performance in collision detection.
Owner:NANJING TECH UNIV

Interstitial lung disease image diagnosis system fused with generative adversarial network

PendingCN120580496AImage enhancementImage analysisPulmonary parenchymaLung lobe
The invention relates to the field of medical image processing, in particular to an interstitial lung disease image diagnosis system fused with a generative adversarial network, which comprises a data preparation module for acquiring chest CT image data and carrying out pulmonary parenchyma segmentation and lung lobe segmentation, a preprocessing module for adjusting the interval between image layers and intercepting a region of interest to form a CT data set, and a processing module for processing the CT data set; the HRCT image enhancement network module generates an adversarial network architecture with a 3D condition and generates a high-resolution lung CT image with a layer thickness of 0.3 mm, the interstitial lung disease segmentation module uses a U-net network to carry out ground glass shadow and honeycomb change segmentation, and the lesion feature decoupling module carries out spatial feature extraction based on a graph convolutional network and carries out lesion classification. The diagnosis module identifies focus classification based on an interstitial lung disease classification network, generates an adversarial network through a 3D condition, and converts a common low-resolution CT image into a high-resolution CT image, so that common CT equipment has the diagnosis capability close to HRCT, and the equipment cost is greatly reduced.
Owner:JIAXING CITY NO 2 HOSPITAL