97 results about "Pleural effusion" patented technology

The invention discloses a pleural effusion drainage device for postoperative treatment, which comprises a drainage tube, a liquid collection container, a negative pressure generation device and a controller, one end of the drainage tube is communicated with the liquid collection container, the other end of the drainage tube is provided with a drainage end, the inner side of the drainage end is provided with a first pressure sensor, and the drainage tube is provided with a contraction part; a second pressure sensor is arranged on the inner side of the contraction part; and the negative pressure generating device is communicated with the liquid collecting container and is electrically connected with the controller. The negative pressure of the liquid collecting container is controlled through the negative pressure generating device, the negative pressure of the liquid collecting container is kept in a proper state, a good drainage effect can be obtained, and postoperative observation and recovery of a patient are facilitated. Besides, a contraction part is designed on the drainage tube, the viscous hydrops are gathered at the contraction part, the pressure of the contraction part is detected by a second pressure sensor, and if the contraction part is blocked, the drainage tube can be kept unobstructed by increasing the negative pressure output of the negative pressure generating device.

The invention belongs to the technical field of medical equipment, and particularly relates to a drainage device for thoracic surgery postoperative pleural effusion nursing, which comprises a drainage box, a controller, a negative pressure machine, an infusion tube and a liquid extraction tube, the pretreatment mechanism is arranged on the liquid pumping pipe; the flow detector is mounted at one end of the liquid pumping pipe; the negative pressure mechanism is mounted on the side surface of the drainage box; wherein the pretreatment mechanism comprises a crushing part, the crushing part is arranged in the liquid extraction pipe, a plugging part is connected to the crushing part in a sliding manner, and a flushing part is further arranged on the liquid extraction pipe; the negative pressure mechanism comprises a shell set, the shell set is connected to the side face of the drainage box, a gas conveying pipeline is arranged at one end of the shell set, and a wobble plate mechanism is arranged at the other end of the shell set. According to the device, blockage prevention, automatic flushing and manual negative pressure maintenance can be achieved, and the safety and efficiency of pleural effusion extraction are remarkably improved.

The utility model belongs to the field of medical instruments, and discloses a puncture bag for chest drainage, which comprises a puncture needle. The guide wire can be arranged in the puncture needle in a penetrating manner; the tip of the guide wire is a J-shaped front end, and the outer wall of the guide wire is provided with a guide wire mark; the expansion tube can be arranged on the guide wire in a sleeving manner; the front portion of the expansion tube is provided with an expansion tube bend, the tail end of the expansion tube is provided with a protruding expansion tube tail end mark, the length from the expansion tube bend to the tail end is larger than the length from the expansion tube bend to the front end, the bending direction of the expansion tube bend is the same as the orientation of the expansion tube tail end mark, and the total length of the expansion tube is equal to the length from the guide wire mark to the J-shaped front end. The drainage tube can be arranged on the guide wire in a sleeving manner. After the guide wire is arranged outside the expansion tube in a penetrating mode, the expansion tube is rotated to the tail end of the expansion tube, the mark faces the lowest position of the thoracic cavity of a patient to indicate the direction of the guide wire, and therefore the opening of the drainage tube is placed in the lowest position of the thoracic cavity, and accurate placement type drainage of pleural effusion is achieved.

The invention discloses an edge-enhanced left atrial appendage medical image segmentation method and system and a storage medium, and the method comprises the steps: constructing a convolutional neural network model of a U-shaped coding structure based on an attention mechanism and a weight loss function, and recording the model as EMCLUNet + +; the medical image segmentation model (EMCLUNet + +) based on edge enhancement adopts an improved UNet + + as a backbone network, and comprises a convolution encoder module, a decoder part, a multi-scale attention module EMSA and an efficient attention mechanism module Clotion. And transmitting a medical image to be segmented into the trained convolutional neural network model to obtain a segmentation result. According to the method, redundant information interference is reduced and the accuracy of boundary information is improved by utilizing a channel and a space attention mechanism. For conditions (such as pericardial effusion or pleural effusion of a patient) with complications, the robustness to complex backgrounds and noise is enhanced by the multi-scale feature fusion and lightweight module, and a high-quality segmentation result is ensured.

The invention relates to the technical field of pleural effusion diagnosis, and discloses a pleural effusion auxiliary diagnosis method based on a biomarker. Screening a biomarker for auxiliary diagnosis of pleural effusion; respectively carrying out data processing on the biomarkers to obtain standardized data of each biomarker; calculating the weight of each biomarker in the disease to which the pleural effusion belongs according to the standardized data of each biomarker; inputting the standardized data of each biomarker and the weight of each biomarker in the disease to which the pleural effusion belongs into a trained pleural effusion auxiliary diagnosis model, and determining the disease to which the pleural effusion belongs; the number of hidden layers in the pleural effusion auxiliary diagnosis model is changed along with the variety and number of biomarkers input into the pleural effusion auxiliary diagnosis model. The pleural effusion can be quickly and accurately diagnosed, and the diagnosis reliability is improved.

The invention relates to the technical field of hydrops quantitative evaluation, and discloses an ultrasound-based pleural hydrops quantitative evaluation system, which comprises an image acquisition module, a boundary division module, a trajectory analysis module, a feature judgment module, a mode classification module and a quantitative evaluation determination module, the positioning module is used for positioning an area which deforms along with breathing movement in the ultrasonic image sequence, and dividing a suspected effusion cavity boundary based on the consistency of a deformation mode; the trajectory analysis module is used for analyzing moving trajectories of the suspected effusion cavity boundary at different breathing phases and extracting regularity features and amplitude change features of the moving trajectories; the feature judgment module is used for judging the mechanical coupling state of the suspected effusion cavity and the surrounding lung tissue according to the combination of the regularity feature and the amplitude change feature; according to the method, the comprehensiveness and accuracy of quantitative evaluation of the pleural effusion are remarkably improved, and a more valuable decision basis is provided for clinical diagnosis and treatment.

The present invention discloses an intracavitary drainage positioning device for extrathoracic surgery, comprising an intracavitary positioning component, the intracavitary positioning component comprising a positioning catheter, the positioning catheter being connected to a thickened tube, a miniature camera being installed in the thickened tube, and a protective member for protecting the miniature camera being installed on the outer side of the miniature camera. The intracavitary positioning component positions the positioning catheter intracavitarily through the action of the miniature camera. This intracavitary drainage positioning device for extrathoracic surgery, by being provided with the intracavitary positioning component, solves the problem in the prior art that postoperative patients or patients who do not require surgery need CT or puncture positioning when simply extracting pleural effusion, resulting in troublesome operation.

The invention relates to the technical field of medical instruments, in particular to a cardiology pleural effusion drainage and extraction device and a using method thereof.The cardiology pleural effusion drainage and extraction device comprises a drainage bottle and a drainage tube, the drainage tube is sleeved with an outer supporting tube assembly, the outer supporting tube assembly is sleeved with an annular sleeve assembly, and the inner side of the drainage tube is provided with an inner supporting tube assembly; the inner supporting pipe assembly comprises a pipe head assembly, one end of the pipe head assembly is fixedly connected with a connecting sliding pipe assembly, and the end, away from the pipe head assembly, of the connecting sliding pipe assembly is provided with an inner wall reset supporting assembly. The inner wall reset supporting assembly comprises an elastic hose, and a cavity is formed in the inner side of the elastic hose. According to the drainage tube, through the arrangement of the outer supporting tube assembly and the inner supporting tube assembly, the deformation resistance and the self-recovery performance of the drainage tube under the low-temperature condition are improved, the problem that folding marks exist after clamping closing due to the fact that the drainage tube is hardened under the low-temperature environment is effectively solved, and the drainage tube is convenient to use. And the elasticity recovery of the drainage tube and the smoothness of internal hydrops and gas flow are ensured.

The invention discloses a thoracic surgery puncture drainage apparatus, which relates to the technical field of medical puncture drainage, and comprises a drainage needle, a drainage tube communicated with the drainage needle, and a negative pressure part communicated with the drainage tube, the negative pressure component comprises an expansion rubber pipe and a shell, an adjusting assembly matched with the expansion rubber pipe is installed on the shell, and the adjusting assembly is used for driving the expansion rubber pipe to stretch and deform. The drainage device has the advantages that when pleural effusion drainage is carried out, adaptive negative pressure drainage can be carried out according to the fluctuation frequency and fluctuation degree of the thoracic cavity, damage to the thoracic cavity is effectively reduced, meanwhile, pressurization dredging can be carried out when slight blockage is caused, backwashing dredging is carried out on the drainage device when high blockage is caused, dredging and drainage integration is achieved, and the drainage effect is good. And back-flushing dredging air is prevented from entering the drainage apparatus to cause drainage infection, so that the drainage apparatus has higher safety and is more convenient to operate.

A method, system, and computer software product for evaluating a physiological state of a subject 22 with respect to a physiological condition, the method comprising obtaining at least one Hidden Markov Model 46 constructed from one or more reference speech samples 44 selected from the group consisting of: reference speech samples produced by the subject 22 at a first time while the physiological state of the subject was known, and reference speech samples produced by other subjects, the physiological condition being selected from the group consisting of: congestive heart failure, pulmonary edema, and pleural effusion, and the Hidden Markov Model including: multiple acoustic states 48 exhibited in the reference speech samples, the acoustic states being associated with respective local distance functions 50 such that, given any acoustic feature vector within a domain of the local distance functions, the local distance function of each acoustic state returns a local distance indicating a degree of correspondence between the given acoustic feature vector and the acoustic state, and allowed transitions 52 between the acoustic states; receiving at least one test speech sample 56 that was produced by the subject at a second time, while the physiological state of the subject was unknown; computing a plurality of test-sample feature vectors 60 that quantify acoustic features of different respective portions 58 of the test speech sample; based on the local distance functions and on the allowed transitions, mapping the test speech sample to a minimum-distance sequence of the acoustic states, by mapping the test-sample feature vectors to respective ones of the acoustic states such that a total distance between the test-sample feature vectors and the respective ones of the acoustic states is minimized, the total distance being based on respective local distances between the test-sample feature vectors and the respective ones of the acoustic states to which the test-sample feature vectors are mapped; and in response to mapping the test speech sample to the minimum-distance sequence of the acoustic states, generating an output indicating the physiological state of the subject at the second time.

The invention discloses an instrument for detecting the property of pleural effusion and a working method thereof, and relates to the technical field of medical diagnosis, and the instrument comprises a probe for measuring the density, temperature and pH value of effusion; the signal processing module is used for processing signals acquired by the probe; the data analysis module is used for analyzing the processed signal based on a preset algorithm and judging the property of the effusion; the display module is used for displaying detection results including the property, the density, the temperature and the pH value of the effusion, the database module is used for storing property data of various effusions for comparison by the data analysis module, and the probe is made of a bendable flexible material. According to the instrument for detecting the properties of the pleural effusion and the working method of the instrument, the properties, such as the protein content, the cell number and the pH value, of the effusion can be detected through physical parameters under the condition that the effusion is not extracted, so that a doctor is assisted in rapidly judging the type of the effusion.

This invention belongs to the field of medical device technology, specifically relating to a fluid self-excited vibration anti-blockage chest drainage tube and an anti-blockage drainage method. It includes a drainage tube body made of medical flexible material; 3-5 chamfered drainage holes are evenly distributed circumferentially at the distal end of the drainage tube body, with rounded edges at the holes having a radius of 0.3-0.5 mm; a threaded connector for quick connection with an external drainage device is fixedly provided at the proximal end of the drainage tube body. The core of this invention, the turbulence section and the variable cross-section oscillation section, are independently arranged along the tube axis, completely avoiding the low vibration efficiency and easy jamming problems caused by the simultaneous placement of the vibrating component and the variable cross-section structure in the prior art. The self-excited vibration generating cavity formed relies solely on the fluid kinetic energy of the pleural effusion or gas to drive the vibration, requiring no external power, significantly reducing equipment complexity and infection risk.

The invention discloses an active constant-volume constant-pressure tuberculous purulent pleural effusion flushing assembly, and belongs to the technical field of medical flushing instruments. The device solves the problems that at present, an injector needs to be adopted for repeatedly sucking and flushing for several times during flushing of the tuberculous pyothorax, passive flushing is conducted on the tuberculous pyothorax, and the flushing effect is poor easily due to intolerance of a patient. A first piston and a second piston are inserted into an outer sheath, the end of the outer sheath is connected with a double-cavity catheter, a flushing pipe is arranged in the first piston, a drainage pipe is arranged in the second piston, one end of the flushing pipe is communicated with the double-cavity catheter through the outer sheath, the other end of the flushing pipe is connected with flushing fluid, and one end of the drainage pipe is communicated with the double-cavity catheter through the outer sheath. The other end of the drainage tube is connected with the drainage bag, and the first piston and the second piston are connected through a piston linkage device. According to the active constant-volume and constant-pressure washing assembly for the tuberculous pyothorax effusion, the washing pressure and the drainage pressure are also equal, so that the tuberculous pyothorax effusion is in a constant-volume and constant-pressure continuous state.

This invention discloses a device for pleural effusion drainage, relating to the field of pleural effusion drainage technology. It includes a housing, with an air pump mounted on the top, a suction tube inserted into the bottom of the air pump, and an air outlet on one side of the air pump. A pneumatic mechanism is installed on the inner bottom wall of the housing, comprising an air cylinder fixedly connected to the housing, a piston slidably connected inside the air cylinder, a connecting rod fixedly connected to the top of the piston, and a linkage mechanism mounted on the top of the connecting rod. This pleural effusion drainage device generates negative pressure inside the air cylinder. Under this negative pressure, the piston slides downwards, causing the two edges of the drainage bag to move away from each other, expanding the internal space of the drainage bag and thus creating negative pressure inside. This draws pleural effusion into the drainage bag. The design of the pneumatic mechanism and linkage structure isolates the pleural effusion from the outside environment, reducing the odor of the drained pleural effusion.

The application discloses a tubeless thoracic surgery pleural effusion monitoring device and relates to the technical field of pleural effusion monitoring. The tubeless thoracic surgery pleural effusion monitoring device comprises a body and a movable monitoring mechanism. The movable monitoring mechanism comprises an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a linear driver, the output end at the bottom of the linear driver is fixedly installed with an X-ray detector, the side of the surface of the linear driver is installed with an auxiliary assembly, the auxiliary assembly comprises a connecting base block and a pressing guide rod, the top end of the pressing guide rod and the side of the surface of the support are fixedly installed with an elastic telescopic damping rod, the bottom end of the pressing guide rod is fixedly connected with a rectangular sheet, the side of the bottom of the rectangular sheet is fixedly connected with a limiting piece, the middle of the bottom of the rectangular sheet is fixedly connected with a flexible pad, the purpose of preventing shaking is achieved, the patient can be pressed and held, a stable posture is maintained, and the chest cavity effusion can be accurately monitored, and the device is safe and reliable.

1. The name of the product of this design: Fluid drainage bottle (intensive care unit). 2. Purpose of the product with this appearance design: used for pneumothorax, pleural effusion and closed chest drainage after surgery. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The utility model discloses an intelligent pleural effusion extraction device which comprises an extraction cylinder, a drainage tube connected to the extraction end of the extraction cylinder and a piston assembly installed in the extraction cylinder, supporting rods are fixed to the upper side and the lower side of the other end of the extraction cylinder, and a motor box is fixed between the tail ends of the supporting rods. Left and right ends of the inner wall of the motor box are respectively provided with a screw motor and a circuit board. When the extraction cylinder needs to extract pleural effusion, a reverse rotation button can be pressed, the reverse rotation button enables the lead screw motor to drive the lead screw to rotate reversely at the moment, the piston rod drives the piston to move in the pleural effusion extraction direction along with threaded connection of the lead screw and the threaded sleeve of the piston rod, and when a forward rotation button is pressed, the lead screw motor drives the lead screw to rotate forwards. And the piston rod drives the piston to move in the direction of pushing out pleural effusion, so that the device can be operated by one hand, manual drawing work is not needed, the device is convenient to use, the device can be suitable for long extraction cylinders, and the extraction frequency is reduced.

The utility model innovatively provides a kind of chest drainage bottle, including chest drainage bottle, there is storage cavity and hardening cavity in chest drainage bottle, there is partition between storage cavity and hardening cavity, hardening agent is stored in hardening cavity, partition is detachably set in chest drainage bottle;Storage cavity and hardening cavity are set in chest drainage bottle, hardening agent is stored in hardening cavity, using hardening agent, the pleural effusion in storage cavity can be hardened, it is convenient to handle pleural effusion, it is convenient to realize the recovery treatment of pleural effusion;And using partition detachably set, it is convenient to realize that hardening agent is poured into storage cavity.

A monitoring system is provided. The monitoring system includes a controller and either a shunt device, an externally-communicating catheter, and / or a fluid retention device. The shunt device and catheter are configured to address fluid movement such as ascites and pleural effusions. Each of the shunt device and catheter include a plurality of sensors that communicate with the controller positioned external to a body of a subject. The plurality of sensors are configured to output a signal indicative of a total volume, a glucose amount, or an oxygenation within a fluid flowing in contact within or surrounding the shunt device or the catheter.

The invention belongs to the technical field of medical instruments. In order to solve the problems that when an existing drainage device special for the thoracic surgery department is used, a drainage tube is prone to being knotted and wound, and disinfection is difficult, the improved multifunctional drainage device special for the thoracic surgery department is provided and comprises a movable base, the drainage tube arranged on the movable base, a liquid collecting bottle, a take-up mechanism and an anti-attachment mechanism; the drainage tube is wound and tidied through the take-up mechanism, pleural effusion collected in the effusion collection bottle is stirred through the anti-attachment mechanism, sediment such as necrotic substances and protein is prevented from being attached to the inner wall of the effusion collection bottle, and follow-up cleaning and disinfection are facilitated.

The utility model discloses a pleural effusion suction device for cardiovascular surgery, including base, the base top one side is installed with micro negative pressure pump, the micro negative pressure pump top is installed with U type communication pipe, U type communication pipe one end is installed with effusion collection bottle, the base top other side places and is provided with the limit drag tray, the limit drag tray bottom and base inboard all are provided with magnetic attraction piece, through the collocation setting of U type communication pipe, effusion collection bottle, U type open slot, disposable flow guide pipe, when the effusion in effusion collection bottle is more, can replace empty effusion collection bottle in time, through setting up magnetic attraction piece in limit drag tray bottom and base inboard, when personnel place effusion collection bottle to limit drag tray inboard, it is not easy to pour, through the collocation setting of tail plug, pen barrel type suction head, top cover, connector, outer thread pipe, make disposable flow guide pipe and puncture needle install more stable, and personnel handheld pen barrel type suction head carry out puncture drainage suction liquid more stable.

The invention discloses a pleural effusion suction device, relates to the technical field of pleural effusion suction devices, aims to solve the technical problem that the pleural effusion suction device is easy to block, and comprises a machine body, a closed channel, a rotating stand, a roller unit, a flow guide tube assembly and a rotating mechanism. The three roller units are driven by the rotating frame to circularly move along the closed channel, and the functions of compaction pushing, radial vibration anti-blocking and separation resetting are achieved on the stations corresponding to the first arc groove, the inclined guide groove A, the second arc groove, the third arc groove and the inclined guide groove B. The stations work cooperatively, and the working efficiency is improved. The second arc groove drives the rolling wheel unit to do radial reciprocating motion to generate deformation disturbance on the flow guide pipe assembly, the deposition risk of hydrops on the inner wall of the flow guide pipe assembly is effectively reduced, and therefore long-acting and stable pleural effusion drainage is achieved on the premise that the operation burden of medical staff is not increased, and the technical problem that the pleural effusion suction device is prone to being blocked is solved.

The utility model discloses a pleural effusion drainage device, relates to the technical field of medical drainage instruments, and solves the problems that a central venous catheter and an effusion device of an existing drainage device are connected, and redundant catheter bodies are exposed outside and are difficult to store, so that drainage is inconvenient. And the central venous catheter and the hydrops device are easy to pull and fall off when the patient turns over. The drainage device comprises a drainage assembly and a collecting piece, the drainage assembly comprises a liquid guide pipe and a three-way pipe which are communicated with each other, a pipe body containing cavity is formed in the collecting piece, one end of the three-way pipe penetrates through the pipe body containing cavity and is detachably connected with the pipe body containing cavity and the collecting piece, and a drainage opening is formed in the cavity bottom of the pipe body containing cavity. And the drainage port is communicated with the collecting piece. The drainage device has the advantages that the situation that operation or movement of a doctor and a patient is limited due to the fact that redundant catheters are scattered aside can be prevented, drainage treatment of pleural effusion of the patient is greatly facilitated, manpower and material resources are saved, and the drainage effect is improved.

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.

The invention provides a thoracic surgery postoperative pleural effusion drainage nursing device, and belongs to the technical field of thoracic surgery nursing. A postoperative pleural effusion drainage nursing device for the thoracic surgery department comprises a wearing frame and a drainage bottle. The force storage extrusion assembly is used for assisting medical staff to automatically extrude the drainage tube, and the force storage assembly is connected with the drainage tube and the wearing frame. According to the scheme, the postoperative pleural effusion drainage nursing device for the thoracic surgery department is provided with the force storage extrusion assembly, the drainage tube can be regularly extruded by means of automatic force storage by means of expansion and fluctuation of the thoracic cavity when a patient breathes, next force storage extrusion can be carried out along with respiratory reset of the patient after each extrusion, manual operation of medical staff is not needed, and operation is convenient. According to the drainage tube fixing device, the workload of medical staff is effectively relieved, a certain limiting effect on the drainage tube is achieved, movement and traction of the drainage tube in the using process are reduced, and the postoperative recovery process of a patient is further guaranteed.

The invention relates to the technical field of medical suction or drawing and conveying instruments, in particular to an intelligent pleural effusion drainage monitoring and remote alarm device which comprises a frame, a drainage bottle and a water seal bottle are placed in the frame, a full bottle liquid level sensor and a water seal surface liquid level sensor are installed on the front side wall of the frame, and a control box is arranged on the front side of the frame. A touch screen and a loudspeaker are arranged on the control box, a wireless transmission module, a control chip and a power module are further arranged in the control box, the full bottle liquid level sensor and the water sealing surface liquid level sensor are electrically connected with the control chip, and the control chip transmits signals to a nurse station and a doctor office PC in a bidirectional mode through the wireless transmission module. The control chip is further electrically connected with the pair of miniature electric pipe closing clamps through wires. The intelligent monitoring device for pleural effusion drainage is low in cost and high in compatibility.

The present invention belongs to the technical field of effusion drainage, and provides a peritoneal effusion drainage device for thoracic cavity, including a liquid storage tank and a puncture needle. The puncture needle is connected to the liquid storage tank through a drainage tube. The liquid storage tank is divided into two upper and lower chambers. The lower chamber is divided into a first placement chamber and a second placement chamber arranged left and right. The liquid storage tank is provided with a first connecting tube and a second connecting tube respectively communicating with the first placement chamber and the second placement chamber. A test tube and a flushing structure for extracting antibiotics are respectively connected to the first connecting tube and the second connecting tube. By setting a speed regulating structure, the present invention avoids adverse effects on patients caused by too fast abdominal fluid flow rate; by setting a fixing cylinder, it is convenient to install the end of the drainage tube and the liquid storage bag more firmly, avoiding the liquid storage bag falling off when shaking occurs and causing environmental pollution; by setting a liquid outlet cover, it is convenient for medical staff to quantitatively take out ascites for detection.

The invention discloses a differential diagnosis and prognosis evaluation method for a pleural effusion microbiome based on metagenome sequencing and application, belongs to the technical field of bioinformatics, and discloses a method for analyzing the microbiome of a pleural effusion sample, and the method comprises the following steps: carrying out metagenome next-generation sequencing on an in-vitro pleural effusion sample to obtain a sequencing reading; performing bioinformatics analysis on the sequencing reading, and determining microorganism composition information of the pleural effusion sample based on a verification result; by establishing a unified mNGS experimental process and a parallel bioinformatics analysis path, two kinds of technical information of different dimensions, namely microbiome structural characteristics and host genome copy number variation (CNV), are synchronously output from single sequencing data, and the defect that microbiological analysis and genome analysis need to be carried out in batches in the prior art is overcome.

The invention provides a closed drainage tube for special pleural effusion and a closed drainage dredging method for the thoracic cavity. The closed drainage tube for the special pleural effusion comprises a drainage tube body, an auxiliary communication block, a magnetic cleaning strip and an iron ring. And the drainage tube can be respectively connected with in-vivo and in-vitro drainage systems of a patient. The auxiliary communication block is provided with a compensation channel communicated with the drainage tube, the compensation channel and the drainage tube jointly form a drainage channel, and a path is provided for effusion drainage. And the auxiliary communication block is provided with a storage space which can be communicated with the compensation channel. And the magnetic cleaning strip is arranged in the storage space. And the iron ring can be sleeved on the drainage tube and the auxiliary communication block. And the iron ring can drive the magnetic cleaning strip to move into the drainage channel from the storage space and drive the magnetic cleaning strip to clean the inner wall of the drainage channel in the drainage channel when the drainage channel is dredged. According to the closed drainage tube for the special pleural effusion, the effusion attached to the inner wall of the drainage tube is fully scraped off under the closed condition, the smooth service life of the drainage tube is effectively prolonged, and the blocking recurrence rate is reduced.

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.