13 results about "Pulmonary lobe" patented technology

The invention discloses a dynamic DR lung field area diagnosis system based on deep learning, and relates to the technical field of medical imaging, and the system comprises an image collection optimization module which is used for capturing a low-dose dynamic DR sequence of a complete period of calm respiration and best effort respiration of a patient, generating a dynamic DR image, and optimizing the dynamic DR image through employing a multi-mode transfer learning strategy, outputting a DR time sequence tensor; and the intelligent diagnosis module is used for carrying out disease cause classification through a gating chart convolutional network in combination with the lung field dilation function ratio and the space structure complexity index, outputting a classification result, and generating a structured report in combination with the lung field dilation function ratio, the space structure complexity index and the continuous lung field area change curve. The differential homeomorphic transformation field is generated through the Lie group exponential mapping algorithm, and the lung lobe boundary connectivity and the bronchial tree topological structure are strictly kept in the three-dimensional deformation process.

The application provides a lung segment bronchus catheter, which comprises a catheter tail end ventilation and suction interface, a cuff inflation device, an outer tube, an inner tube, a front end cuff and a guide end formed by the inner tube; the cuff is annularly arranged on the outer surface of the catheter head, and is in the form of a ring ball wrapped around the inner tube in the inflated state; the cuff inflation interface and the cuff inflation conduit are communicated between the gap between the outer tube and the inner tube at the catheter tail and lead to the cuff; the catheter ventilation and suction interface is communicated with the inner tube and the guide end formed by the inner tube, and a guide wire is arranged in the catheter ventilation and suction interface to form a straight lumen. The catheter can enter the target lung segment or sub-lung segment bronchus through the operation channel of the bronchoscope, the inflated cuff seals the airway cavity around the lung segment bronchus catheter cavity, then the guide wire is pulled out from the lung segment bronchus catheter cavity, the target lung segment or sub-lung segment is inflated through the catheter ventilation and suction interface, so that the anatomical range of the target lung segment or sub-lung segment after ventilation is revealed, the technical problem that a thoracic surgeon cannot accurately identify the anatomical range of the target lung segment in the operation is effectively solved, and the thoracic surgery anatomical partial lobectomy operation is facilitated.

The invention relates to a postoperative anti-regurgitation self-cleaning drainage tube which is suitable for chest drainage after pulmonary lobectomy. In order to solve the problems that a traditional drainage tube depends on gravity to conduct passive drainage, a tube cavity is prone to forming a biological membrane due to sediment to cause blockage and drainage efficiency is insufficient, a plurality of cilia are arranged on the inner wall of a drainage tube body in a surrounding mode in the circumferential direction, the sizes of the cilia are gradually reduced from the root to the top end, and the elasticity modulus is reduced in a gradient mode in the drainage direction; and the vibration device is matched to drive the cilia to swing directionally in the same direction as the drainage direction. According to the design, by simulating the respiratory tract cilia function and utilizing the synergistic effect of cilia structural characteristics and vibration excitation, tube wall sediments are actively and physically stripped, a biological membrane is destroyed to form a foundation, and meanwhile, cilia directionally swings to form drainage auxiliary thrust. According to the application, the occurrence rate of lumen blockage can be obviously reduced, the drainage efficiency is improved, the postoperative pain and medical cost of a patient are reduced, the recovery period is shortened, and the clinical efficient drainage and anti-blockage requirements are met.

The utility model relates to a lung mould capable of training tracheal stent implantation, which comprises a mould lung, and a main trachea, a main bronchus, a lung lobe bronchus and a lung segment bronchus which are connected in sequence, at least one of the main trachea, the main bronchus, the lung lobe bronchus and the lung segment bronchus is provided with a simulation trachea, a simulation airway is arranged in the simulation trachea, and the simulation trachea is provided with an air inlet and an air outlet. The inner side of the simulated trachea is provided with a protruding part capable of narrowing or closing the simulated airway. The lung teaching aid is characterized in that a beginner can perform training in the lung teaching aid by means of a bronchoscope through the arrangement that the simulated airway can be narrowed or closed, and the beginner can simulate exploration and operation in a narrow or blocked airway in an actual operation; therefore, the degree of mastering operations such as accurate positioning and releasing of the stent in the tracheal stent implantation operation in a clinical situation and proper adjustment of the form of the stent in a narrow and complex environment is improved.

The invention discloses a pleural fistula exploration and decision support system. The system comprises a respiratory cycle synchronous in-airway gas parameter / end-tidal carbon dioxide (PECO2) / pleural cavity pressure and airflow parameter joint detection part, a lung lobe split integrity analysis and virtual bronchoscope navigation part and a pleural fistula parting and decision support device. A respiratory cycle synchronous in-airway gas parameter / end-breathing carbon dioxide / pleural cavity pressure and airflow parameter combined detection part is arranged, and the respiratory cycle synchronous in-airway gas parameter / end-breathing carbon dioxide / pleural cavity pressure and airflow parameter combined detection method comprises the steps that firstly, respiratory cycle synchronous in-airway gas parameter / end-breathing carbon dioxide / pleural cavity pressure and airflow parameter combined detection is conducted; (2) the end-breathing carbon dioxide adopts a catheter front end detection technology (such as laser and infrared technologies); and (3) a special balloon catheter for sampling gas parameters in the airway / end-breath carbon dioxide.

The utility model relates to the technical field of medical instruments, and particularly discloses a novel bronchus occluder which comprises a connector, a lobe bronchus occluding device pipeline and a main bronchus occluding device pipeline, and the lobe bronchus occluding device pipeline and the main bronchus occluding device pipeline are both arranged in the connector. A bend is arranged at the lower end of the pulmonary lobe bronchus plugging device pipeline, a pulmonary lobe bronchus cuff communicated with the pulmonary lobe bronchus plugging device pipeline is arranged at the bent end of the pulmonary lobe bronchus plugging device pipeline, and a first air injection connector pipe is arranged at the upper end of the pulmonary lobe bronchus plugging device pipeline. A main sleeve bag communicated with the main bronchus plugging device pipeline is arranged at the lower end of the main bronchus plugging device pipeline, a visual probe is arranged at one end of the main sleeve bag, a second air injection connector pipe is arranged at the upper end of the main bronchus plugging device pipeline, and a visual display screen connector is arranged at the upper end of the main bronchus plugging device pipeline. A plurality of fixing belts are uniformly arranged at the upper end of the main bronchus plugging device pipeline.

The invention discloses a multi-modal score construction method for identifying benign and malignant pulmonary nodules and application of the multi-modal score construction method. The multi-modal score construction method comprises the steps that 1, data are collected, and data sets serve as a training set and a verification set respectively; step 2, preprocessing the collected low-dose spiral CT image; 3, aiming at the preprocessed low-dose spiral CT image, extracting marker features of the pulmonary nodule under imaging; the pulmonary nodule deep learning malignant probability is acquired, and the pulmonary lobe radiomics detection result of the participant is acquired; 4, based on the extracted pulmonary nodule features, constructing a single-mode nodule score, and verifying and evaluating a score identification effect; and step 5, constructing a pulmonary nodule benign and malignant identification multi-mode comprehensive score. According to the method, after the patient completes low-dose spiral CT or provides biological information, the individualized risk score is automatically generated, and the relative risk level in the screening crowd is visually displayed in a risk percentage mode to assist doctors in decision making and grading intervention.

The invention discloses a pulmonary ventilation-perfusion development area image segmentation and quantitative analysis system, and relates to the technical field of medical image analysis, and the system comprises a data collection module which obtains SPECT V / Q image data and medical record information corresponding to the SPECT V / Q image data, and generates a structured data set; the feature extraction module is used for performing format conversion and multi-scale feature extraction on the SPECT V / Q image data in the structured data set to generate a compressed feature map data set; the lung lobe segmentation module is used for inputting the compressed feature map data set into a U-Net model to segment a lung lobe region and carrying out post-processing to generate a lung lobe region mask image; and the image fusion module is used for performing alpha blending fusion on the lung lobe region mask image and SPECT V / Q image data to generate a color fusion image. According to the method, the alveolar-to-lung-lobe-level structure is captured by fusing the features of the four branches through the cavity pyramid network, and the GPU video memory consumption is reduced.

The present invention provides an automatic lung lobation method based on medical images, which includes the following steps: using bronchial data to obtain regions of interest of each interlobar fissure from the lung medical image to be lobated; using the Hessian matrix to enhance each of the regions of interest to obtain corresponding enhanced images; extracting preliminary interlobar fissure data from each of the enhanced images; using an interpolation algorithm to reconstruct the preliminary interlobar fissure data to generate complete interlobar fissure data, and then performing lung lobation according to the complete interlobar fissure data. The present invention also provides an automatic lung lobation device and an electronic device based on medical images. Thereby, the present invention can achieve full-automatic lung lobation, and the lobation result is more accurate.

Certain embodiments are directed to the use of an airway device that allows for selective lobar isolation for the administration of drugs and biologies in liquid solution deeply into lung tissue, with simultaneous ventilation of the rest of the lungs. In addition, the novel airway device facilitates the performance of interventional bronchoscopy procedures such as biopsies, removal of foreign bodies, tumor debulking and placement of stents. The advantage of having separate ventilation and working channels allows continuous view and use of instruments without interruption necessary to remove structures from the airway.

The invention relates to a lung tumor three-dimensional culture method and a culture medium, and discloses a method for constructing a three-dimensional culture model in a manner of infusion and oxygen therapy from a shell structure to a culture structure, simulating a complex microenvironment of lung tissues, providing a stable culture environment and improving the culture efficiency. The invention relates to a culture method and a culture medium for realizing three-dimensional culture of lung tumor cells. The culture medium is characterized by comprising a shell structure and a culture structure, the culture structure is arranged in the shell structure, the shell structure is integrated with a gas-liquid conveying system, the culture structure is a bionic model simulating the shapes of left and right lung lobes, three-stage or four-stage branch air passages (similar to bronchus and pulmonary alveoli) are arranged in the culture structure so as to realize uniform distribution of oxygen, different types of cells are inoculated in the culture structure layer by layer, and the culture structure is integrated with the gas-liquid conveying system. Functional interaction of different cell types is ensured, culture conditions are provided in the mode that infusion and oxygen therapy are conducted on the culture structure from the shell structure, the lung tumor microenvironment is simulated, and culture of lung tumor cells is achieved.

A method for segmenting an anatomical feature into a plurality of parts may include receiving an image of the anatomical feature; segmenting the image into a plurality of parts based on a trained image segmentation neural network, wherein each part of the plurality of parts is assigned a part label; determining a nodule location associated with a nodule within the anatomical feature; assigning the nodule to a part of the plurality of parts in the image based on the nodule location; calculating at least one distance metric between a first point on a boundary of the part and a second point away from the boundary of the part; and generating a distance-coded image based on the distance metric, wherein the distance-coded image indicates a distance from the boundary of the part to points outside the boundary based on a color scheme.