30 results about "Pulmonary lobe" patented technology

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 present invention concerns a method for determining optimised parameters for mechanical ventilation, MV, of a subject, comprising: a) obtaining data concerning a three-dimensional image of the subject's respiratory system; b) calculating a specific three-dimensional structural model of the subject's lung structure from the image data obtained in step a); c) calculating a specific three-dimensional structural model of the subject's airway structure from the image data obtained in step a); d) calculating a patient-specific three-dimensional structural model of the subject's lobar structure from the lung model obtained in step b); e) modeling by a computer, the air flow through the airway, using the models of the airway and lobar structure of the subject obtained in steps c) and d) at defined MV parameters; f) modeling by a computer, the structural behavior of the airway and the interaction with the flow, using the models of the airway and lobar structure of the subject obtained in steps b) and c) at defined MV parameters; g) determining the MV parameters which lead to a decrease in airway resistance and hence an increase in lobar mass flow for the same driving pressures according to the model of step d), thereby obtaining optimized MV parameters. It also relates to a method for assessing the efficacy of a treatment for a respiratory condition.

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 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 discloses a deep learning-based pulmonary fissure segmentation and integrity assessment method and system. Compared with a traditional method, the method has the advantages that the pulmonary fissure segmentation precision and calculation efficiency are obviously improved, and full-automatic pulmonary fissure segmentation and pulmonary fissure integrity assessment are realized. The main steps of the pulmonary fissure segmentation and integrity assessment method comprise: constructing a pulmonary fissure segmentation data set; training a pulmonary fissure segmentation model basedon the full convolutional neural network; predicting a pulmonary fissure area and identifying to obtain left lung oblique fissure, right lung oblique fissure and right lung horizontal fissure; estimating complete pulmonary fissure; evaluating the degree of pulmonary fissure integrity. A full convolutional neural network is adopted; end-to-end pulmonary fissure model training and prediction are realized; the method has the advantages that the prediction speed is high without manual intervention, a segmentation framework from coarse to fine is adopted, the problem that the number of category labels is extremely unbalanced when a full convolutional neural network is used for performing a segmentation task is solved, false positive generated by pulmonary fissure segmentation is removed by introducing pulmonary fissure segmentation, and the pulmonary fissure integrity assessment is more accurate.

The invention relates to an image segmentation method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a pulmonary lobe segmentation network according to pulmonary lobe data and pulmonary split data in a pulmonary image, and determining the position of a target pulmonary lobe in the pulmonary image according to the pulmonary lobe segmentation network. By adopting the method and the device, the pulmonary lobe position can be accurately determined, so that the focus can be timely positioned.

The invention relates to a CT image lung lobe segment segmentation method, device and system, a storage medium and equipment, and the method comprises the steps: a detection step: in a CT image, detecting and outputting a lung contour which comprises an intra-lung region and an extra-lung region; A screening step: in the lung contour, selecting a machine segmentation mode to screen out an intra-lung region, and taking the intra-lung region as a candidate region; A segmentation step: in the 3D level of the candidate region, performing blood vessel segmentation and pulmonary lobe segmentation onthe lung segment and the pulmonary lobe at the same time; A construction step: according to a blood vessel segmentation result, constructing a blood vessel tree to obtain three-dimensional blood vessel distribution of the lung; And an integration step: combining the blood vessel tree with the lung split segmentation result, and carrying out lung segment segmentation to obtain a final segmentationresult of the candidate region. According to the CT image lung lobe segment segmentation method, device and system based on deep learning, the storage medium and the equipment, errors are effectivelyreduced, the diagnosis rate and accuracy are improved, and the CT image lung lobe segment segmentation method, device and system are not limited by individual lung morphological differences.

The invention belongs to the field of medical apparatus and instruments, and relates to a 3D printed connecting structure of artificial sternums and artificial ribs with movable joints. The connectingstructure comprises a 3D printed artificial sternum and five pairs of artificial ribs. The artificial ribs are connected to a spherical joint cavity arranged at the side face of the artificial sternum through a spherical joint structure at one end of each artificial rid to form movable structures similar to human joints. The 3D printed connecting structure of the artificial sternums and artificial ribs with the movable joints is mainly used for replacing diseased sternums and ribs, can move within a certain range with the expansion or contraction of a thorax, do not restrict the movement of the thorax and pulmonary lobes, thus it is realized that the repair of the sternum and rib anatomy functions is satisfied, the influence on the physiological function is reduced to the minimum, and patients' physical agility and life quality are improved.

The invention discloses a pair of magnetic-mediated pulmonary lobe traction tongs, which comprises pulmonary lobe traction tong heads, a joint, a spring steel plate, connecting lines, a traction block and an in-vitro traction magnet. The instrument, by controlling the bending and the unbending of the spring steel plate at the tail end, can close and open the traction tong heads; and under the magnetic actions of the in-vitro traction magnet and the traction block, traction on the pulmonary lobe traction tongs is achieved. Through magnetic mediation between an in-vitro part and an in-vivo part of the instrument, pulmonary lobe traction can be achieved without additional chest wall incision, and a single chest wall operating hole can not be occupied, so that mutual interference of instruments is avoided; in another aspect, the instrument can flexibly adjust a pulmonary lobe traction angle through the connection of the traction block and the connecting lines and can adjust traction strength by adjusting the magnetic force of the in-vitro traction magnet, so that an operative field is fully exposed; therefore, the pair of the traction tongs is more beneficial for a surgical doctor to smoothly complete single-hole thoracoscope.

The invention discloses an incision protector having a chest compression function. The incision protector comprises an upper locating ring, a lower locating ring, a protecting membrane and a chest compression system. The chest compression system comprises an end cover and a pressurizing system; an apparatus operating hole is kept in the end cover; the pressurizing mechanism comprises an inflatingport, an inflating passage and a pressurized air source connecting device; the inflating port communicates with a thoracic cavity; the end cover is connected to the upper locating ring to seal the thoracic cavity; pressurized gas enters the inflating passage via the pressurized air source connecting device and the thoracic cavity is inflated and pressurized via the inflating port, so that positivepressure is formed in the thoracic cavity to compress such tissues as pulmonary lobes and the like, and subsequently, an operative view field is widened. The incision protector having the chest compression function further comprises a smoke discharge system; the gas discharge amount of the smoke discharge system is less than the inflating volume of the chest compression system, so that cyclic alternating of chest gas is guaranteed and smoke is discharged, and meanwhile, the positive pressure of the thoracic cavity is kept. With the application of the incision protector having the chest compression function provided by the invention, a thoracoscopic surgery is safer and more convenient in an operating process.

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.

The invention relates to a hybrid lung segmentation system based on deep learning and image processing. The system comprises an obtaining module which is used for obtaining a DICOM file of a lung CT image, a preprocessing module which is used for preprocessing the DICOM file, a first segmentation module which is used for carrying out bronchial segmentation, blood vessel segmentation and pulmonarynodule detection on the preprocessed DICOM file, a second segmentation module which is used for taking the DICOM file, the bronchial segmentation result and the blood vessel segmentation result as input of a deep learning model to perform lung lobe segmentation and extraction and arteriovenous segmentation, and a third segmentation module which is used for performing lung segment segmentation by taking the bronchial segmentation result, the pulmonary lobe segmentation result and the arteriovenous segmentation result as input of a segmentation model. According to the invention, the segmentationof the whole lung is realized, and the anatomical structure reference of preoperative planning can be provided for a lung wedge-shaped operation or a puncture ablation operation.

The invention provides a pulmonary nodule segmentation method based on a CT image. The pulmonary nodule segmentation method comprises pulmonary parenchyma region extraction, pulmonary cavity region extraction, pulmonary lobe region extraction and region of interest extraction. According to the method and the device, through the first binarization processing and the second binarization processing,the influence of the binarization processing on the extraction of the focus region, namely the first appearing region and the second appearing region, is weakened, so that the focus separation precision is improved. After the first appearing area is highlighted, the threshold value of the first appearing area is further increased, whether the coordinates marked by a doctor are accurate or not is detected, such as whether the coordinates are on the blood vessel or not, so that the accurate separation of the nodules and the blood vessel is achieved, and meanwhile the workload of manual judgmentand the workload of manual repair during later verification of the doctor are reduced. On the premise that the threshold change range of the first appearing area is reasonably expanded, the second appearing area is determined and extracted, and the focus separation precision is further improved.

The invention provides a pulmonary lobe occlusion device for a minimally invasive surgery of thymoma. The device comprises a push rod, a sleeve rod, a front support plate, a rear support plate, a compression spring, a connecting rod and a trachea device, and a push rod straight rod of the push rod is inserted into a sleeve rod straight rod of the sleeve rod; the compression spring sleeves the pushrod straight rod of the push rod, and is located between the push rod and the sleeve rod; the right end of the push rod straight rod of the push rod is welded with a pin rod; the front support plateis disposed on the right side of the push rod, the front support plate and the push rod are connected by the connecting rod, one end of a pin hole of the connecting rod is mounted on the pin rod, andthe other end is mounted on a connecting plate of the front support plate; the rear support plate is disposed on the rear side of the front support plate, and the rear support plate and the push rod are also connected by the connecting rod; the trachea device is disposed inside the sleeve rod straight rod of the sleeve rod and located at the upper end of the push rod straight rod of the push rod;the device effectively blocks opened pulmonary lobes and protects a lung tissue; the cooperation use of the trachea device and a compression airbag increases the opened occlusion area, and the removalrange is larger.

The invention discloses a traditional Chinese medicine capsule for treating chronic pharyngitis. The traditional Chinese medicine capsule can eliminate inflammation of pulmonary lobe and alveolar edema so as to fundamentally treat laryngitis. The traditional Chinese medicine capsule is prepared from the following traditional Chinese medicines: radix bupleurim, ginseng, rhizoma anemarrhenae, Radix Ophiopogonis, indigo naturalis, borneol, mint leaves and the like.

The invention discloses a trachea cannula. An air hole is formed in the side wall of the middle of a trachea cannula body. When the trachea cannula is inserted into a trachea and one end of the trachea cannula is inserted into one bronchia, the air hole is just communicated with the other bronchia oppositely. An airhole baffle matching the air hole is formed in the position, corresponding to the air hole, of the inner wall of the trachea cannula body and can slide along the trachea cannula body. Therefore, the wounds formed by using the trachea cannula can be reduced and the body injury of a patient can be reduced. When intubation is performed, the intubation difficulty can be reduced and free ventilation of the two lung lobes and switching of ventilation channels are realized; the outer diameter of the trachea cannula is reduced when the inner diameter of the cannula is large enough and thus the injuries to a patient are reduced; and the inner diameter can be increased under the condition that the outer diameter is fixed, so that the circulation diameter of gas is increased and better gas circulation performance is realized.

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 lung lobes from chest CT images, and relates to the field of computer technology. The method includes a lung parenchyma extraction process based on 3D region growing, a left and right lung adhesion trachea removal process based on regional features, a pulmonary blood vessel root removal process, a pulmonary blood vessel center path extraction process based on topology refinement, and a lung lobe classification based on support vector machine. Segmentation algorithm to obtain lung lobe tissue. The present invention can accurately extract lung lobes from chest CT images, accurately complete the quantitative assessment of the degree of disease of each lung lobe, and make the diagnosis and treatment of lung diseases more accurate and effective.

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 discloses mineral ion atomizing liquid and an application thereof, wherein a preparation method of the mineral ion atomizing liquid follows a technological process as follows: A, preparing materials: B, mixing the prepared materials according to proportions and promoting precipitation; C, conducting secondary precipitation and adjusting pH value; and D, implementing filtering, filling and warehousing. The preparation method of meteoritic mineral ions has the following beneficial effects: for various respiratory diseases, pulmonary diseases as well as pneumoconiosis; instead of using any antibiotic drugs, the capacity of mucosal tissues in human respiratory system in resisting viruses and germs can be enhanced and a survival environment of the viruses and the germs can be changed merely on the basis of the principle that element ions in the natural world can achieve free exchange, so that diseases can get cured naturally. Meanwhile, the mineral ion atomizing liquid is strong in ion exchange capacity; and strongly chimeric dust on pulmonary lobes of a patient with pneumoconiosis can undergo effective ion exchange and can be rapidly removed.

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 aims to provide a collateral ventilation assessment system. Disclosed embodiments include apparatuses, systems, and methods for assessing collateral ventilation. An illustrative embodiment includes an occlusion device insertable into a bronchial passageway to selectively seal the bronchial passageway to occlude a lobe of a lung. A flow lumen sealably extends through the occlusion device to a distal end and has a proximal end receptive of a positive pressure flow. A check valve is coupleable with the flow lumen to permit the positive pressure flow to pass to the distal end of theflow lumen and prevent a backflow of pressure from the flow lumen. A flow meter is couplable with the flow lumen to measure the positive pressure flow through the flow lumen. The occlusion device is insertable into the passageway to the isolated lobe. Measurements of the flow meter of the positive pressure flow into the occluded lobe are monitorable to assess collateral ventilation from the occluded lobe.

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.

The invention relates to endoscopic precision-type series vascular linear stapling instrument and loading unit. The stapling instrument and loading unit comprise a loading unit main body, a nail drill, a rotating joint, a first connecting tube, a second connecting tube, a rotating head, a rotating knob, a trigger, a handle and a resetting cap, wherein both the first connecting tube and the second connecting tube are 4.5-5.5mm in diameter; the loading unit main body is 4.5-5.5mm in diameter; the loading unit main body is 2.5-3.5mm long; the nail drill comprises a nail drill main body and a guide body; and the guide body is represented as a bill. The linear stapling instrument and loading unit provided by the invention have the advantages that the linear stapling instrument and loading unit are convenient to operate and flexible to use and are capable of penetrating blood vessels to be closed; precise vascular treatment in a pulmonary surgery, in particular pulmonary lobe and pulmonary segment surgeries, can be implemented, and especially, vascular treatment on some complex anatomical sites can be obviously simplified, so that the safety of the surgeries can be improved and consumables can be reduced; and the linear stapling instrument and loading unit have a broad application prospect.