65 results about "Pneumothorax" patented technology

The invention discloses an intelligent medical image diagnosis system and method based on hierarchical cross-modal conversion and dynamic feature tracking. The system adopts three-step cross-modal conversion: a first-layer small model for converting user questions to realize medical ontology matching; the second-layer multi-modal model extracts image features, and outputs text states such as JSON data with focus coordinates, density and other features; and the third-layer large model fuses the medical history and the image features to generate diagnosis suggestions, and credibility verification is carried out. A dynamic focus tracking engine is introduced, a focus evolution rule of multiple scanning is analyzed through a convolutional network, and an optical flow field is adopted to compensate artifacts. The system also integrates a multi-expert voting mechanism to simulate a clinical consultation process, and outputs consensus diagnosis and objection viewpoints. A hierarchical routing algorithm is designed for emergency treatment scenes, so that the recognition response time of emergencies such as pneumothorax is shortened. Further, the system automatically generates a full chain of evidence report that conforms to medical regulations, including a model version, a guide reference, and a data hash value.

The invention belongs to the technical field of medical instruments, and particularly relates to a portable pneumothorax catheterization device compact in structure and efficient in operation. The portable pneumothorax catheterization device comprises a puncture mechanism, an auxiliary fixing assembly and an adjusting assembly are arranged on the puncture mechanism, and a drainage tube is detachably connected into the puncture mechanism; the end, away from the puncture mechanism, of the drainage tube is connected with the collection bottle, a one-way valve is arranged at the end of the drainage tube, a through hole and a flowing groove are formed in the end, away from the one-way valve, of the drainage tube, and a thin tube is arranged in the drainage tube and communicated with the air bag. According to the safe and reliable portable pneumothorax catheterization device, a supporting cylinder, a limiting block and a reset spring of the puncture mechanism are linked, a puncture needle can be driven to stretch out for puncture by rotating the supporting cylinder, catheter propelling is synchronously completed, and traditional tedious steps such as puncture and incision are omitted; auxiliary instruments such as scissors and pliers are not needed, the problem that a traditional process is complex is solved, the method is suitable for emergency scenes such as pre-hospital first aid and field rescue, and time is won for rescue.

Methods and apparatuses for performing automated detection of lung slide using a computing device (e.g., an ultrasound system, etc.) are disclosed. In some embodiments, the techniques determine lung sliding using one or more neural networks. In some embodiments, the neural networks are part of a process that determines probabilities of the lung sliding at one or more M-lines. In some embodiments, the techniques display one or more probabilities of lung sliding in a B-mode ultrasound image.

The invention discloses a medical image segmentation method based on a Kolmogorov-Arnold network, and the method comprises the steps: firstly obtaining a medical image, then constructing an IKANet model, and carrying out the segmentation of the medical image after training, testing and verification. Wherein the IKANet model adopts an encoder-decoder structure and integrates three core components, namely a DKC module, a multi-scale attention module and an interpretability analysis module, and the DKC module realizes adaptive nonlinear transformation and feature decoupling through a Kolmogorov-Arnold network; the multi-scale attention module enhances space-channel feature fusion through multi-scale convolution and a channel attention mechanism; and the interpretability analysis module generates a multi-scale class activation mapping thermodynamic diagram and provides visual interpretation. The technical problems that an existing medical image segmentation method is limited in generalization ability and insufficient in interpretability are solved, and the method can be widely applied to data sets of colon polyp, pneumonia, pneumothorax and the like.

The utility model discloses a double-lumen bronchial catheter with an inner balloon on the side of an extension branch pipe, which comprises a first air guide pipeline, a second air guide pipeline and the extension branch pipe, and the tail ends of the first air guide pipeline and the second air guide pipeline as well as the middle section and the tail end of the extension branch pipe are fixedly provided with inflation plugging components. The utility model has the beneficial effects that the inflation plugging assembly comprises a first inflation balloon which is fixedly sleeved on the outer walls of the tail ends of the first air guide pipeline and the second air guide pipeline, a second inflation balloon which is fixedly sleeved on the outer wall of the middle section of the extension branch pipeline, and a third inflation balloon which is coaxially and fixedly sleeved on the inner wall of the tail end of the extension branch pipeline; therefore, gaps between the peripheries of the first air guide pipeline and the second air guide pipeline and the trachea wall of a patient can be sealed through the first inflation balloon, meanwhile, double plugging can be conducted on the bleeding side lung or the pneumothorax side lung through the second inflation balloon and the third inflation balloon, and the plugging stability of the bleeding side lung or the pneumothorax side lung is improved.

The utility model discloses a pneumothorax first-aid device which comprises a bandage A and a bandage B. The bandage A and the bandage B are connected through a fixing piece, the pneumothorax first-aid device further comprises a supporting belt which is fixedly connected between the bandage A and the bandage B. The axial section of the supporting belt is shaped like a Chinese character'hui '. An elliptical tubular space is defined by the bandage A, the supporting belt and the bandage B; the transverse plate is connected to the supporting belt through a moving part, and an elastic pressing plate is installed on the transverse plate; through the arrangement of the movable plate and the movable groove, the elastic pressing plate can slide on the supporting belt, the pressing position of the elastic pressing plate can be conveniently and rapidly adjusted in the binding process, the whole position does not need to be moved, the elastic pressing plate can be rapidly and accurately pressed on dressing or a cotton cushion at the wound of a patient, and the dressing or the cotton cushion is not prone to being damaged. And the first-aid treatment efficiency is further improved.

The application discloses a kind of anti-blocking mechanism for closed thoracic drainage, including water seal bottle, the bottle mouth end of water seal bottle is equipped with cover, the cover is fixedly connected with connector, the connector is fixedly connected with drainage hard pipe and vent pipe, the drainage hard pipe is connected with drainage hose, this anti-blocking mechanism for closed thoracic drainage effectively solves the connection of original drainage hard pipe and drainage hose and the gravity when drainage material passes, and the soft drainage hard pipe of connection is bent, and then drainage tube is blocked, simultaneously, necrotic material precipitation, protein deposition meat-like drainage material in drainage material, after being drained into water seal bottle, the tube opening of drainage hard pipe inserted in liquid is easily blocked by meat-like drainage material, cannot normally drain, and then cause the patient to appear pneumothorax and other disease problems.

An endobronchial valve designed for placement in an airway to modify lung volume to a portion of the lung. The valve comprises a frame with a collapsible and expandable configuration, and a valve member made of a flexible material attached to the frame. The valve member includes a distal valve member with a conical shape and nested within a proximal valve member with a frusto-conical shape. The distal valve member features a cavity communicating with an opening at the base, while the proximal valve member has openings of varying diameters. The base of the distal valve member is positioned through the opening of the proximal valve member, allowing for effective modification of lung volume. The valve systems further include a swellable material for changing a fluid flow rate over time to gradually modify lung volume and mitigate complications such as pneumothorax.

The invention discloses an autologous blood transfusion device which comprises a shell mechanism, an autologous blood return mechanism and a binding mechanism, the shell mechanism serves as an accommodating part for protecting internal core components, blood of the autologous blood return mechanism is transfused back into a patient, the binding mechanism serves as an instrument to be bound to the waist of the patient, and the shell mechanism is composed of a shell, a handle, a supporting bottom plate and a control panel. A carrying handle is installed at the top of the shell, bearing vertical rods are installed on the two sides of the plate face of a supporting bottom plate respectively, the supporting bottom plate is transversely installed in the middle of the bottom end of the shell, and a buffering cushion is installed at the bottom of the supporting bottom plate. The negative pressure relief valve is simple in structure, stable in pressure conversion and capable of avoiding damage caused by excessive blood pressure conveying, pressure protection is adopted, the positive pressure relief valve is automatically opened when H2O is 2cm, pneumothorax risks are prevented, the manual negative pressure relief valve can be manually intervened in emergency situations, and operation flexibility is improved.

The utility model provides a pneumothorax deep vein catheterization drainage device capable of being automatically externally connected with a water-sealed bottle, and relates to the technical field of medical equipment, the pneumothorax deep vein catheterization drainage device comprises a drainage tube main body, two ends of the drainage tube main body are respectively connected with an output tube and an input tube; a storage cover is mounted on the outer side of the output pipe; a collecting piece is installed on the side face of the storage cover. A hole is formed in the side face of the collecting piece, and the hole in the side face of the collecting piece is communicated with the inner side of the storage cover; a fixed cover is mounted on the outer side of the input pipe; a detachable binding belt is installed on the side face of the fixing cover, and a force component plate is installed on the outer side of the fixing cover. The multiple supporting rings are distributed on the outer side of the tubular drainage device, the situation that flow of gas or liquid in the pleural cavity is affected by deformation of the drainage device is reduced, it is guaranteed that the guided-out gas or liquid is discharged in time, and the problems that deformation exists when the drainage device is pressed, and flow-out of the gas or liquid in the pleural cavity is affected are solved.

The utility model relates to a pulmonary nodule positioning device with a puncture guide needle, which belongs to the technical field of surgical medical instruments and comprises a puncture guide needle and a positioning needle sleeved inside the puncture guide needle, the puncture guide needle consists of a needle tube, an inner needle, a needle tube seat and an inner needle cap, the positioning needle comprises a needle rod and a handle fixedly connected to the top end of the needle rod, and a sealing structure is arranged between the needle rod and the handle. According to the pulmonary nodule positioning device with the puncture guide needle, by arranging a pushing key and a pushing pipe, a worker can conveniently push the pushing pipe, by arranging a built-in sealing ring, the sealing effect can be achieved between the pushing pipe and the handle, air is prevented from entering the pushing pipe from the top end of the needle rod, and by arranging a sealing plug, the sealing effect is good, and the puncture guide needle is convenient to use. After the needle rod is inserted into the needle tube, the needle tube seat and the handle are in a sealed state, air is prevented from entering from the top of the needle tube seat, and then the pneumothorax risk of a patient can be effectively reduced.

The utility model discloses a pneumothorax first-aid device which comprises a box body with a built-in power supply, a breathing machine arranged in the box body, an oxygen bottle communicated with the breathing machine and a respirator which is communicated with the oxygen bottle and can extend out of the box body. A box cover with the outer side wall being an inclined face is hinged to the position, corresponding to the breathing machine, of the box body, and the non-hinged end of the box cover is detachably connected with the box body. One side of the box body is movably provided with a positioning plate for directional puncture of the gas needle, the other side of the box body is movably provided with a gas guide cylinder, and the gas needle is embedded and fixed on the positioning plate and is communicated with the gas guide cylinder. The box body internally provided with the breathing machine, the oxygen bottle and the respirator is arranged, the box body is connected with the box cover provided with the inclined face, the posture of a patient can be conveniently adjusted in good time, and the positioning plate is movably arranged so that the acupuncture position can be conveniently adjusted, positioned and guided; and the gas guide cylinder movably arranged along with the box body is convenient to carry and is also suitable for being placed during use, the structure is simple and compact, and the use is convenient.

The invention discloses a precise positioning device for pneumothorax minimally invasive closed drainage, and belongs to the technical field of medical instruments. Comprising a drainage bottle, a sealing cover is detachably connected to the upper surface of the drainage bottle, a drainage pipe is arranged above the sealing cover, the bottom end of the drainage pipe extends to the lower portion of the interior of the drainage bottle, and an exhaust pipe is arranged on the portion, located on the right side of the drainage pipe, of the sealing cover. The bottom end of the exhaust pipe extends to the upper portion of the interior of the drainage bottle. Through the exclusive structural design of the puncture device, the core problem that in the prior art, the puncture needle inserting depth cannot be controlled is effectively solved, a doctor can adjust the second rotating circular ring to the corresponding position by means of the second scale marks on the fixed sleeve based on the parameters such as the chest wall thickness measured through CT or chest radiography and the distance between the pneumothorax line and the chest wall, and the puncture needle inserting depth can be controlled. And then the puncture head is driven to move through the first rotating ring, and the puncture depth is precisely limited through the blocking effect of the second rotating ring.

The utility model relates to the technical field of pneumothorax puncture, and discloses a button type pneumothorax puncture needle sleeve which comprises a fixing device and a water seal bottle, the fixing device is in a button type, a butterfly-shaped paster is arranged below the fixing device, a puncture hole is formed in the middle of the fixing device, a puncture needle is arranged in the puncture hole in a penetrating mode, and the water seal bottle is connected with the fixing device. The top of the puncture needle is in a bamboo joint shape, the tail of the puncture needle is communicated with the water-sealed bottle through a drainage tube, a bottle plug is arranged on a bottle opening of the water-sealed bottle in a clamped mode, and the end, close to the water-sealed bottle, of the drainage tube penetrates through the bottle plug to be arranged in the water-sealed bottle in a penetrating mode. By means of the butterfly-shaped paste, a punctured wound can be protected in time, tension is generated by tightening the butterfly-shaped paste outwards, the skin is tensioned, and growth of the wound is facilitated; the top of the puncture needle is in a bamboo joint shape, the bamboo joint of the puncture needle can be broken according to the body shape of a patient, and the puncture length of the puncture needle can be adjusted.

The application discloses a kind of lung edema and pneumothorax identification and quantitative evaluation device based on multi-modal flexible ultrasound, the method is by synchronously obtaining the morphological ultrasound image and the elastic mechanics image of the same anatomical position, B line quantitative index, pleural line sliding index and the average strain value of region of interest are extracted from morphological ultrasound image and elastic mechanics image;B line quantitative index, pleural line sliding index, average strain value are combined into feature vector, feature vector is input into multi-parameter fusion decision model, obtains lung edema index and pneumothorax risk probability;Lung edema index and pneumothorax risk probability are displayed in display terminal, and when lung edema index exceeds preset index threshold or pneumothorax risk probability exceeds preset probability threshold, alarm is triggered;It can reduce the misdiagnosis rate under emergency scene, reduce end-to-end response time, provide objective, real-time, quantifiable decision support for clinician, significantly reduce the risk of missed diagnosis and improve emergency treatment efficiency.

This utility model discloses a voice tremor nursing teaching model in the field of nursing teaching aids. It includes a three-dimensional humanoid model with a left lung model and a right lung model positioned at the chest area. The left lung model is covered with a silicone membrane, forming a pleural cavity model. A catheter is located at the top of the left lung model, with one end extending into the pleural cavity model. Air or liquid is injected into the pleural cavity through the catheter to simulate pneumothorax or pleural effusion. The right lung model includes a detachable and replaceable lung cavity model, lung tumor model, and bronchial obstruction model. A bronchial model is located between the left and right lung models, with a microphone connected to the top of the bronchial model. The two forked ends of the bronchial model at the bottom are connected to the left and right lung models, respectively. This device can replace different models to simulate pathological states, allowing students to intuitively experience the differences in voice tremor under different pathological conditions, improving teaching effectiveness and students' clinical skills training level.

1. Name of the product in this design: Fluid drainage bottle (intensive care unit). 2. Intended use of this design: for pneumothorax, pleural effusion and closed thoracic drainage after surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

A method for use in a lung access procedure to aid in preventing pneumothorax includes providing a cannula having a pair of balloons, the pair of balloons including a first balloon longitudinally spaced from a second balloon along the cannula; inserting the cannula along an access opening and through pleural layers, with the first balloon and the second balloon of the pair of balloons respectively positioned on opposite sides of the pleural layers; inflating the pair of balloons with a first amount of a two-component sealant to compress the pleural layers together; and inflating the pair of balloons with a second amount of the two-component sealant that is sufficient to rupture the pair of balloons so as to comingle a first sealant component and a second sealant component of the two-component sealant at the site of the pleural layers so as to adhere the pleural layers together.

A high-efficiency pneumothorax needle comprises a valve tube which is internally provided with a gas guide tube; the guide pipe assembly is fixedly connected with the valve pipe, and a cavity channel located on the same straight line with the air guide pipe is formed in the guide pipe assembly; the one-way valve is connected to the side wall of the valve pipe and communicates with the air guide pipe, and one-way exhaust is achieved; and the puncture needle assembly is movably arranged in the cavity in a penetrating mode, when the puncture needle assembly penetrates through the catheter assembly, the puncture needle assembly is used for puncturing a part to be exhausted, and when the puncture needle assembly is contained in the cavity, the tail end of the air guide pipe can be closed, and only one-way valve exhausting is achieved. The thoracic cavity puncture needle is compact and reasonable in structure and convenient to operate, the puncture needle does not need to be pulled out through ingenious cooperation of the sealing part and the puncture needle assembly, meanwhile, the tail end of the air guide pipe can be automatically sealed when the puncture needle is withdrawn, the external environment is effectively isolated, and cleanliness and safety of the interior of the thoracic cavity are protected.

Methods and apparatuses for performing automated detection of lung slide using a computing device (e.g., an ultrasound system, etc.) are disclosed. In some embodiments, the techniques determine lung sliding using one or more neural networks. In some embodiments, the neural networks are part of a process that determines probabilities of the lung sliding at one or more M-lines. In some embodiments, the techniques display one or more probabilities of lung sliding in a B-mode ultrasound image.

The invention discloses a pneumothorax first-aid device for thoracic surgery nursing. The pneumothorax first-aid device comprises a puncture penetrating connecting piece, a gas exhaust control piece and a built-in water seal pipe fitting. The invention belongs to the field of medical instruments, and particularly relates to a pneumothorax first-aid device for thoracic surgery nursing. Through innovative integration of modular design, an accurate control structure and a safety protection mechanism, the pain points of traditional pneumothorax first-aid equipment in the aspects of operation convenience, exhaust stability, safety protection and the like are solved, the first-aid efficiency is improved, the operation threshold is lowered, the risk of complications is reduced while the safety of a patient is guaranteed, and the safety of the patient is improved. The limitation that traditional pneumothorax first-aid equipment is single in function, complex in operation and insufficient in safety performance is broken through.

Methods and apparatuses for performing automated detection of lung slide using a computing device (e.g., an ultrasound system, etc.) are disclosed. In some embodiments, the techniques determine lung sliding using one or more neural networks. In some embodiments, the neural networks are part of a process that determines probabilities of the lung sliding at one or more M-lines. In some embodiments, the techniques display one or more probabilities of lung sliding in a B-mode ultrasound image.

The utility model relates to a monitoring device for pneumothorax, which comprises a drainage bottle comprising a bottle body and a bottle cap; the catheter penetrates through the bottle cap and extends to the position near the bottom of the bottle body, and the upper end of the catheter is connected to the drainage tube to drain liquid and / or gas in the thoracic cavity of the patient into the bottle body; the camera is arranged on one side of the drainage bottle to obtain an image; the image processing unit is connected with the camera and is used for receiving the image, processing the image to identify the liquid level in the guide pipe and the liquid level in the bottle body and generating a corresponding liquid level height data signal; and the signal processor is connected with the image processing unit and is used for outputting a height difference value between the liquid level in the guide pipe and the liquid level in the bottle body according to the liquid level height data signal in the guide pipe and the liquid level height data signal in the bottle body. The device can be used for pneumothorax treatment and can assist medical staff in monitoring the pressure in the pleural cavity and the treatment effect.

The invention relates to the technical field of medical instruments, in particular to a portable multi-pipeline thoracic closed drainage tube which comprises a shell, a fixing tube is connected to the interior of the shell, a hose is connected to the outer side of the fixing tube, a hydrops assembly is arranged at the bottom of the shell, and an exhaust assembly is arranged at the top of the shell. Through the arrangement of the hydrops assembly, a special one-way airtight structural component can be adopted to prevent gas from flowing back to the thoracic cavity, the negative pressure of the thoracic cavity and the drainage of pneumatosis in the thoracic cavity can still be maintained after a water-sealed bottle is abandoned, the effects of portability and safety are achieved, and a pneumothorax patient can be prevented from being hospitalized and recuperated home after catheterization; the drainage device can be pulled out in an outpatient service after the illness state is improved, the cost of a patient is reduced, a drainage bag or a water-sealed bottle can be externally connected to the connector for the patient with pleural effusion, the connector is of a threaded structure, and meanwhile a conversion connector component of a drainage tube of a traditional water-sealed bottle structure can be provided.

The present application relates to a kind of respiratory simulation training model and its control method, a kind of respiratory simulation training model includes first pleural cavity model, first lung capsule model, pneumothorax simulation structure, pressure display device and control unit.Pneumothorax simulation structure includes first powder box and third air outlet pipeline, pressure display device is used to show the pressure change in the capsule cavity of first lung capsule model;Control unit is electrically connected with first control valve, second control valve, first powder box opening and closing valve.By setting first pleural cavity model, first lung capsule model and pneumothorax simulation structure and pressure display device, the relationship of lung capsule and pleural cavity capsule in human structure is realistically demonstrated, and pleural cavity capsule is in negative pressure state for a long time, more in line with the physiological indication of human body.Control unit controls the opening and closing of corresponding device of respiratory simulation training model in different states, and pressure display device realizes the normal state demonstration of air pressure in lung capsule, improves the model demonstration effect, improves the applicability of model.

The utility model discloses an integrated multi-angle guide puncture needle, which relates to the technical field of medical instruments and comprises a guide part, the guide part is provided with a handheld handle with a hollow structure, a connecting sleeve fixedly connected with one end of the handheld handle and a guide needle sleeve fixedly inserted with the connecting sleeve, and the handheld handle, the connecting sleeve and the guide needle sleeve form a puncture passage; the needle body is inserted into the puncture channel, and a C-shaped buckle is arranged on the outer wall of the angle calibrator and connected with the clamping part in a clamped mode. The angle calibrator is of a spherical hollow transparent structure, the angle calibrator is filled with filling liquid, a calibration plate floats on the liquid level of the filling liquid, and angle scale marks are arranged on the outer wall of the angle calibrator. According to the integrated multi-angle guide puncture needle, the angle calibrator which can be detachably connected with the puncture needle is arranged, so that the needle inserting angle value is displayed in real time when a puncture channel is established by medical staff, the needle inserting direction and angle can be accurately controlled, and the risk of increasing pneumothorax and bleeding complications due to the fact that the needle inserting angle is adjusted for multiple times is avoided.

The invention provides an effusion extraction device and method. The effusion extraction device comprises a supporting assembly, and the supporting assembly comprises a transparent cylinder and two mounting grooves. According to the hydrops extraction device provided by the invention, through mutual cooperation of the supporting assembly, the positioning assembly, the extraction assembly, the mounting assembly, the tension measuring assembly, the moving assembly and other structures, during hydrops extraction operation, a slidable moving part is combined with scale reference on the side face of a transparent cylinder, and the height of a check ring is fixed through an elastic clamping part and a clamping block; the puncture depth of the needle head is limited and does not need to be judged depending on subjective experience of doctors; the moving assembly drives the tension measuring assembly to pull the piston rod at a constant speed, the standardized liquid extraction rate is achieved, a tension sensor monitors liquid extraction tension in real time, manual control over liquid extraction force is not needed, and worry about too deep puncture or rate fluctuation is not needed, so that the risk of complications such as bleeding and pneumothorax is reduced, and the pipeline blockage probability is reduced. Accuracy and safety of effusion extraction are improved, and pain of a patient is relieved.

The application discloses a kind of vital sign monitoring and chest bottle fixing integration intelligent wheelchair device, it is related to wheelchair field, including, wheelchair frame;For placing drainage bottle's chest bottle rack, the chest bottle rack is rotatably connected on wheelchair frame;Slow swing ware, it includes brake pad, the chest bottle rack is compressed on wheelchair frame by brake pad;Drive system, it includes the hand drive brake pad hand drive unit and the brake pad mechanical drive mechanical drive unit;The application is effectively solved the technical problem that drainage liquid backflow when thoracic surgery patient goes up and down slope or bumpy section by gravity sensing and automatic deviation correction mechanism, prevent the occurrence of tension pneumothorax and retrograde infection from source.The function of "flat road dead lock, ramp slow swing" is realized by using double-spring differential pressure design and locking mechanism, which not only ensures absolute fixation in driving, but also avoids liquid surface agitation in the adjustment process, maximally reduces the risk of drainage tube pulling injury.

The utility model discloses a straight-through type drainage catheter device capable of accurately positioning and avoiding puncture injury, which comprises a drainage catheter, a hollow puncture needle, a hollow tube sleeve and an injector, the drainage catheter comprises a tip, a catheter body and a catheter seat, the hollow puncture needle comprises a needle tip, a needle tube and a needle seat, and the hollow tube sleeve comprises a tube sleeve body and a tube sleeve seat; the hollow puncture needle is embedded in the hollow tube sleeve, the hollow tube sleeve is embedded in the drainage catheter, the needle tip penetrates through the tip end, and the injector is connected with the needle base; according to the utility model, the pipe sleeve seat is provided with the limiting part, after the indwelling catheter enters a human body, the needle seat of the hollow puncture needle is rotated backwards to the limiting part, and the hollow puncture needle retreats into the hollow pipe sleeve, so that when a doctor draws an injector, the injury of the needle point to the human body after the drainage catheter enters the human body can be avoided, and the hollow puncture needle is not completely withdrawn; and a channel is not formed between the chest and the outside to cause pneumothorax.

The application provides a strong wet tissue adhesion hydrogel and a preparation method and application thereof, a long-chain modified silk fibroin with higher purity is prepared by shortening the degumming time of a sodium carbonate solution to raw rubber, prolonging the reaction time with glycidyl methacrylate, and dialysis with a dialysis bag with a molecular weight of not less than 50 kDa; the long-chain modified silk fibroin is compounded with polyphenol materials, especially tannic acid, and the prepared hydrogel has a strong wet tissue adhesion effect, the shear stress reaches 62.5 N, the anti-burst capacity reaches 844 mmHg, the Young's modulus reaches 160 kpa, the degradation speed is slower, the adhesion time is longer, a strong hemostatic effect can be realized on internal organs such as liver and heart, and tissues such as blood vessels, a good plugging effect can be realized on stomach perforation, intestinal perforation, pneumothorax and the like, the hydrogel can also replace sutures to realize the closure of skin wounds, scar formation caused by the increase of local stress of sutures is avoided, and thus the clinical requirements can be better met.