30 results about "Pulmonary lobe" patented technology

The invention discloses an X-ray chest radiograph image quality determination method and device. The method comprises: conducting normalization processing on an X-ray chest radiograph image; inputtingthe normalized image into a deep learning model for image separation and recognition to obtain at least one separation result; wherein the deep learning model at least comprises one of the followingformulas: a pulmonary lobe segmentation model, a spine segmentation model, a shoulder blade segmentation model and a foreign matter detection model; and determining the image quality of the X-ray chest radiograph based on the separation result. The X-ray chest radiograph image quality is fully automatically evaluated, and the image quality determination speed is high. Moreover, a technician can behelped to control the image quality of the chest radiograph, and the radiograph reading accuracy is indirectly improved.

The invention relates to a pulmonary nodule puncture positioning technology of a mark point assisted mixed reality technology. The pulmonary nodule puncture positioning technology includes the steps:(1) placing at least three markers made of imitation bone materials at the chest of a human body, forming a plane by the markers and marking the placement positions of the markers by coloring; (2) generating two-dimensional images by CT (computerized tomography) scanning; (3) performing a three-dimensional reconstruction technique on the two-dimensional images to obtain a 3D (three-dimensional) model; (4) accurately matching the 3D model with the colored markers on the human body by a mixed reality device; (5) confirming the position, the angle and the depth of a puncture needle; (6) positioning the surface of a pulmonary segment with a pulmonary nodule by dyeing after needle insertion. The position of the pulmonary nodule is accurately positioned by the mixed reality technology without repeated scanning and repeated puncture, the pain of a patient is greatly relieved, surgical efficiency is improved, upper pulmonary lobe positioning effects are better, and errors are at a millimeter level.

The invention discloses a lung tumor segmentation method for large-area adhesion of lung boundary tissue in a CT image. The method comprises the following steps: extracting left and right pulmonary lobe parenchyma shapes from a lung CT image containing a large tumor, and constructing an input shape; then, according to the tumor-free lung CT image, constructing a prior shape by using a sparse similar shape linear combination model; selecting a deformation curve and a control point thereof on a priori shape, and selecting a target curve and a control point thereof on an input shape; using a curvilinear transformation method for correcting a large continuous error on the pulmonary parenchyma shape (namely an input shape), so that a complete pulmonary parenchyma contour including tumors is obtained, and a pulmonary parenchyma image is further obtained; and finally, segmenting the lung tumor on the lung parenchyma image by using a region growing method.

Provided is a method and apparatus for segmenting airways and pulmonary lobes. An image processing apparatus obtains a first candidate region of an airway from a three-dimensional (3D) human body image by using a region growing method, obtains a second candidate region of the airway based on a directionality of a change in signal intensity of voxels belonging to a lung region segmented from the 3D human body image, segments an airway region by removing noise based on similarity of a directionality of a change in signal intensity of voxels belonging to a third candidate region acquired by combining together the first and second candidate regions. Furthermore, the image processing apparatus segments a lung region from a 3D human body image by using a region growing method, obtains a fissure candidate group between pulmonary lobes based on a directionality of a change in signal intensity of voxels belonging to the lung region, reconstructs an image of the lung region including the fissure candidate group into an image viewed from a front side of a human body and generates a virtual fissure based on a fissure candidate group shown in the reconstructed image, and segments the pulmonary lobes by using the virtual fissure.

The embodiment of the invention discloses a lung lobe segmentation method, device, computer equipment and storage medium. Wherein, the method includes: performing image segmentation on the collected original lung image based on a preset image segmentation algorithm to obtain a preliminary lung lobe segmentation image, the preliminary lung lobe segmentation image includes a preliminary lung lobe segmentation and an initial lung fissure; Or at least one first target lung fissure line input from the original lung image, wherein the first target lung fissure line is a complete lung fissure line or a locally adjusted lung fissure line; The split is adjusted to obtain the segmented image of the target lung lobe. The embodiment of the present invention solves the problem that the accuracy of the automatic lung lobe segmentation results is limited by the quality of lung CT image data and the accuracy of the lung lobe automatic segmentation algorithm, and cannot meet the clinical needs. The accuracy of segmentation results meets the needs of clinical diagnosis.

The invention discloses a method and device for extracting a pulmonary lobe from a chest CT image and relates to the technical field of a computer. The method can obtain pulmonary lobe tissues through a pulmonary parenchyma extraction process based on 3D region growth, a left and right lung adhesion trachea removal process based on region features, a pulmonary vascular root removal process, a pulmonary vascular center path extraction process based on topological thinning and a pulmonary lobe segmentation algorithm based on support vector classification. The method can accurately extract the pulmonary lobe from the chest CT image, can accurately finish quantitative evaluation of illness degree of each pulmonary lobe and is more accurate and effective for diagnosis and treatment of lung diseases.

The invention provides a traction positioner in a pulmonary lobe combined apparatus for a thoracoscopic surgery. The traction positioner comprises a table-board clamp holder and at least one positioning plate which is straightedge-shaped, wherein a groove is formed in the table-board clamp holder and consists of an upper plate, a lower plate and a side plate; the upper plate is connected with a vertical rod; a positioning knob is in threaded connection with the vertical rod; a positioning plate is mounted on the positioning knob; the positioning plate is hinged to the positioning knob; the positioning plate is respectively contacted with the positioning knob and the top end of the vertical rod; a plurality of positioning teeth are connected to the upper surface of the positioning plate in equal distance; the lower plate of the groove is connected with a fastening ejector rod by threads; the top end of the fastening ejector rod is connected with a top seat in a hinging way; the lower end of the fastening ejector rod is connected with a rotary handle; the top seat is arranged in the groove and corresponds to the upper plate. By using the traction positioner, the problems that operative incisions are more, patient trauma is lager, the operative operation is complex, and operators are more in the prior art are solved.

The invention provides a microwave radiation therapeutic apparatus for the lung. The microwave radiation therapeutic apparatus comprises a left physical therapy head and a right physical therapy head, wherein the left physical therapy head is in the shape of the left pulmonary lobe, the right physical therapy head is in the shape of the right pulmonary lobe, the left physical therapy head and the right physical therapy head are connected with two output ports of a one-to-two power divider (hereafter referred to as the power divider), respectively, and an input port of the power divider is connected with a microwave radiation device; a distance regulating device is arranged between the left physical therapy head and the right physical therapy head; the distance regulating device comprises a lead screw, the directions of the threads at two ends of the lead screw are opposite, two end parts of the lead screw are connected with the left physical therapy head and the right physical therapy head through threads, and a small motor capable of driving the lead screw to rotate is arranged in the middle of the lead screw. The microwave radiation therapeutic apparatus for the lung provided by the invention is specially used for the lung treatment, the physical therapy heads can cover the whole lung, the distance between the two pulmonary-lobe-shaped therapy heads can be adjusted according to different people, so that the whole lung is treated, and the outstanding treatment effects are achieved.

A magnetically anchored pulmonary nodule positioning device for thoracoscopic surgery, comprising: two target magnets, used to clamp the target nodule on both sides of the target nodule; two coaxial puncture needles, both of which are hollow, The hollow dimensions are respectively larger than the outer dimensions of the two target magnets, so that the two target magnets can pass through; the positioning plate has a plurality of holes, and two coaxial puncture needles penetrate the two holes to realize the target nodule. Preliminary positioning; the anchor magnet is used to attract the target magnet on the surface of the lung through magnetic force, and the positioning range is confirmed according to the magnitude of the magnetic force. The invention completes the positioning of the nodular focus through magnetic attraction. Suitable for thoracoscopic lobectomy. At the same time, the probability of falling off, shifting, and wandering of positioning markers is reduced, and the stimulation of foreign bodies to the pleura can be reduced, and the corresponding discomfort and complications can be reduced. At the same time, direct contact between markers and nodules can be avoided to prevent affecting pathology during surgery. Judgment to meet the needs of more patients for high-precision thoracoscopic surgery.

The invention belongs to the technical field of medical instruments, and particularly relates to stay-cord type lymph gland biopsy forceps applied to single-hole thoracoscope radical operation. The stay-cord type lymph gland biopsy forceps consist of two parts, namely a stay-cord type lymph gland biopsy forceps body and a double-joint retractor, which are in magnetic jointing. The stay-cord type lymph gland biopsy forceps body comprises two short arms, two long arms and a spring, wherein jaws which form an oval when closed are arranged at the front ends of the two short arms. The double-joint retractor comprises two arms which are in parallel connection, each arm consists of a front part, a middle part and a rear part, and a protrusion is arranged at the front end of the front part of each arm. During use, the protrusions are in joggled connection with hollow hexahedrons on the stay-cord type lymph gland biopsy forceps body. The stay-cord type lymph gland biopsy forceps are easy to operate and are convenient and light, have the advantages that tail ends thereof can be free and variable in angle, the quantity of instruments moving in or out of the single hole is reduced, collision of multiple instruments is avoided, and lymph gland biopsy, access and thorough cleaning in single-hole thoracoscope pulmonary lobectomy are facilitated.

The invention relates to a method for culturing primary epithelial stem cell spheres of mouse lung tissue. After digesting the mouse lung lobe tissue block with a preheated collagenase digestion solution, adding an equal amount of DMEM / F12 medium containing FBS to stop the digestion, extracting small Primary epithelial stem cells from mouse lung tissue were cultured in suspension to form stem cell spheres. The method of the present invention establishes a method for culturing primary epithelial stem cell spheres of mouse lung tissue through a 3D culture model to simulate the microenvironment of lung tissue in vitro and provide effective and reliable research for elucidating the regulation mechanism of proliferation and differentiation of lung epithelial stem cells Model.

An embodiment of the present invention provides a segmental naming method for pulmonary trachea and blood vessels, the method comprising: extracting the centerline of the trachea of ​​the lung, and establishing a trachea tree structure according to the centerline of the trachea; Classification of lung lobe types: using the first classifier corresponding to the lung lobe type of the trachea to classify the lung segments of each trachea to obtain the nomenclature result of the lung segments of each trachea. In the embodiment of the present invention, the trachea tree structure is established by extracting the centerline of the trachea of ​​the lung, and the lung segment of each trachea is classified by the first classifier corresponding to the type of the trachea lobe to obtain the naming result of the lung segment of each trachea, thereby By effectively establishing the spatial topology of human tubular organs, it can automatically name the lungs and trachea in segments, improve the efficiency of segment naming, and reduce the error rate.

The invention discloses a lung clearing and sputum excretion device for the clinical respiratory medicine department. The lung clearing and sputum excretion device structurally comprises a mouth-holding short pipe, a paddle frame rotating plate ball valve, a washing shell cover groove, an integrated circuit board, a button plate and a hand-held bent rod. According to the lung clearing and sputum excretion device, the mouth-holding short pipe is matched with the paddle frame rotating plate ball valve, when a patient is in pulmonary lobe butt joint with a single throat pipe and double bronchie through a mouth-holding short pipe butt joint ball valve shell and an axis valve disc, the high-low air pressure difference distribution of pulmonary alveoli is achieved, so that the activity of the lung is improved through the air exchange efficiency of a folding frame strip plate disc and a clamping pad groove wheel core opening when the equipment is inserted into a valve nozzle, the ball millingsurface at the valve end protects the swallowing of the patient, the effective oral cavity containing ventilation pipe sputum excretion and air guiding effect is improved, the pulmonary alveoli pressure obtains the feedback breathing starting amplitude on the ball valve sector, the pump pressure is reduced, the external atmospheric pressure is balanced through a paddle disc support rod, the balanced adjusting effect of the pulmonary alveoli activity is formed, and the rehabilitation integrity of the pulmonary lobe breathing function and the medical labor saving auxiliary effect are guaranteed.