282 results about "Chest cavity" patented technology

The invention belongs to the technical field of wireless sensing and artificial intelligence, and discloses a high-robustness non-contact accurate electrocardiogram monitoring method based on a millimeter wave radar. Firstly, the distance and angle of a potential target are obtained through distance fast Fourier transform and digital beam forming technologies, and static background removal and thoracic cavity position detection are achieved in combination with mean filtering and a two-dimensional constant false alarm rate algorithm. And then a continuous phase is extracted by using a differential cross multiplication method, a two-step heartbeat-related phase extraction scheme is designed, body micro-motion and breathing interference are removed by adopting B-spline fitting and differential operation respectively, and a stable heartbeat-related phase signal is obtained. A heart rate-guided adaptive wavelet decomposition method is designed to obtain multiband features, and time-frequency joint features are extracted through a double-branch attention mechanism and a gating fusion part. Finally, the time-frequency joint features are input into an electrocardiosignal time domain reconstruction module based on a TransUNet architecture, high-quality reconstruction of electrocardiosignals is achieved, and the method has the advantages of being non-contact, continuous and convenient.

The invention discloses a closed thoracic drainage bottle facilitating drainage, and belongs to the field of medical instruments. The device comprises a water seal bottle, a negative pressure adjusting bottle, a water seal pipe and a chest drainage pipe, and is additionally provided with an adjusting assembly and a liquid collecting assembly. The liquid collecting assembly comprises a first liquid collecting bottle and a second liquid collecting bottle which are symmetrical; the adjusting assembly comprises a fixing plate and four sets of two-way valves, the fixing plate is provided with symmetrical connectors which are connected with the liquid collecting bottle and the chest drainage tube respectively, and the two forked ends of the water sealing tube penetrate through the corresponding two-way valve connectors and stretch into the liquid collecting bottle. Seamless switching of the double liquid collection bottles can be achieved by controlling opening and closing of different two-way valves, and drainage does not need to be interrupted when the liquid collection bottles are replaced. The device is easy and convenient to operate, the drainage efficiency is improved, and drainage continuity and safety are guaranteed.

Various embodiments include methods for generating patient-specific heart and thorax models using anatomical landmarks and segmentation data, optimized through the application of trained neural network models. Three-dimensional medical imaging data may be processed by a trained neural network to automatically segment and isolate the heart, blood cavities, and thorax to extract feature maps from the segmented images. Anatomical landmarks, such as the heart apex and valve centers, are identified and the alignment of heart axes is verified. Reference heart and thorax models are selected and adapted to fit the patient-specific landmarks through scaling, translating, and rotating. Best adapted heart and thorax models may then be used for conducting one or more medical procedures. Neural network models, trained on historical patient data sets, may be refined through machine learning from new patient data, thereby improving accuracy.

The invention relates to the technical field of respiration monitoring, and provides a sensor-based respiration monitoring system which comprises a non-contact radar sensor, a signal preprocessing unit, an active state monitoring module, a dynamic threshold adjusting unit, a respiration signal reconstruction module, a respiration event judging module and a data fusion calibration unit. The sensor collects original respiratory vibration data of the thoracic cavity, and initial baseband signals are extracted through preprocessing; the monitoring module evaluates an activity state and adjusts unit self-adaptive configuration parameters; the reconstruction module generates a high-fidelity respiratory effort signal through filtering and phase compensation; the judgment module extracts features, recognizes and classifies respiratory events, and the calibration unit fuses multi-source data to verify a correction result. The system can be deployed on multiple devices, interference-free long-term monitoring is achieved, respiratory events can be accurately recognized, types can be subdivided, and the monitoring precision and adaptability are greatly improved.

The invention relates to the technical field of machine-to-machine communication, in particular to an edge communication control method of a medical oxygen generation system, which comprises the following steps of: tracking an inspiration flow rate track to construct a ventilation rhythm segment, calculating time offset by combining thoracic cavity displacement response, and analyzing an offset evolution trend to screen an asynchronous period with increasing amplitude; the flow rate rising form is synchronously monitored to identify sudden change characteristics such as trend interruption, oxygen supply actions are configured for the period with asynchronous and sudden change characteristics, control instructions are integrated, and an edge communication period control configuration set is obtained. According to the invention, a rhythm interval and a multi-dimensional time sequence mapping relation are constructed through two-channel data of inspiration flow velocity and thoracic cavity displacement, cross-cycle tracking fluctuation evolution is carried out to doubly screen asynchronous response and flow velocity mutation characteristics, oxygen supply action insertion logic is combined, and time migration and a synchronous state are incorporated into edge communication configuration; and a rhythm number and state label corresponding mechanism is established, and precise oxygen supply time sequence linkage matching and instruction control are achieved.

The invention discloses a high-frequency full-chest oscillation sputum excretion method and system based on clinical data self-adaptive regulation and control, and the method comprises the steps: building an individualized propagation model of thorax and lung tissues through collecting individualized clinical data of a patient and chest multipoint acoustic and mechanical short-range response; the current body position of a patient is input into the model, a chest drainage path is obtained, oscillation control parameters are generated under the constraint of the path, and the oscillation control parameters are used for driving equipment to synthesize pressure traveling waves which are directionally propagated in multiple areas of the chest wall. In the execution process, safety gating control is conducted in combination with electrocardio and breathing phases, meanwhile, aerosol echoes and high-frequency impedance disturbance are collected to serve as feedback signals, and feedback data are formed after the feedback signals are aligned with an execution time sequence and used for dynamically updating the individualized propagation model and oscillation control parameters. According to the invention, accurate regulation and control can be carried out according to individual differences and real-time physiological statuses of different patients, the sputum drainage effect is effectively enhanced, the safety and comfort of treatment are improved, and the clinical application value is high.

The invention relates to the technical field of respiratory function monitoring, and discloses a pulmonary ventilation blood flow distribution real-time monitoring method and evaluation system based on a sensor. The method comprises the following steps: acquiring multi-modal data such as a blood oxygen saturation waveform, an airflow rate waveform and a thoracic pressure waveform of a lung area; performing time synchronization processing on the data to generate a time alignment sequence; dividing the data into an inspiration phase, an expiration phase and a transition phase according to a preset rule; extracting time-frequency domain features from each phase segment, and constructing a multi-dimensional respiration feature matrix; identifying an abnormal breathing mode and marking an abnormal section through breathing phase switching frequency analysis; decomposing the normal segment feature matrix by using a lung pathological feature library to generate a pathological feature vector; a pathological feature vector is optimized through a ventilation and blood flow coupling model; and carrying out abnormal region positioning based on the lung pathology propagation network, and generating a lung partition function evaluation result. The method realizes non-invasive and real-time monitoring, and is suitable for scenes such as clinical monitoring and rehabilitation evaluation.

An anti-accidental-touch chest drainage tube fixing device, which effectively solves the problems of existing chest drainage tubes, including an insufficient shock absorption and buffering effect, the lack of a mechanism for isolating external drainage-tube shaking, inconvenience for patients to get out of bed due to the absence of a temporary opening-closing and sealing mechanism, an insufficient anti-accidental-pulling mechanism, inadequate buffering capacity, and the lack of a self-sealing mechanism. The technical solution provided herein is an anti-accidental-touch chest drainage tube fixing device, comprising a self-adhesive patch (1) applied to a wound, and a drainage tube (2), wherein a rectangular box (3) is provided above the self-adhesive patch (1), a winding roller (4) is provided in the rectangular box (3), the ends of the winding roller (4) are articulated to side plates of the rectangular box (3) by means of torsion springs, and a cylindrical block (5) is provided in the middle of the winding roller (4); two transmission rollers (6) are provided on the lower side of the winding roller (4); two longitudinal shafts (7) are provided in the cavity of the rectangular box (3); a double-ended lead screw (8) is provided in the cavity of the rectangular box (3), and two sliders (9) are screwed on the double-ended lead screw (8); a gear (10) is provided at the right end of the double-ended lead screw (8), a swing rod (11) is provided on the self-adhesive patch (1), and a ring gear (12) is provided at the upper end of the swing rod (11); and an arc-shaped rack (13) with a downward opening is provided on the self-adhesive patch (1), and when the swing rod (11) drives the rectangular box (3) to swing back and forth, the gear (10) can rotate under the action of the rack (13).

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 utility model provides a cardio-pulmonary resuscitation rescue bed with a telescopic chest, and belongs to the technical field of medical equipment. Comprising a position correcting device and a bed body, an ejection area is arranged on one side of the top of the bed body, the interior of the ejection area penetrates through the inner side wall of the bed body, and the position correcting device is located in the ejection area. A patient is placed on the bed body, the middle of the assembly plate is aligned with the heart of the patient through the third drive motor and the second drive motor, the first drive motor drives the worm to be meshed with the two sets of worm wheels, and therefore the two sets of drive rods are driven to rotate, the four sets of ejector rods are made to eject the assembly plate upwards, and the chest of the patient is ejected away from the bed body. The top end of the cardiopulmonary resuscitation machine is clamped into the clamping seat, and the pressing plates at the two ends are clamped with the two ends of the assembling plate, so that the cardiopulmonary resuscitation machine can conduct resuscitation operation on the heart and the lung of a patient, and the problems that an existing cardiopulmonary resuscitation rescue bed cannot adapt to patients of various body types, and meanwhile work of the cardiopulmonary resuscitation machine is hindered are solved.

The utility model discloses a novel transfer wheel stretcher capable of placing a chest drainage device, which comprises a wheel stretcher, and a storage device for placing the drainage device is arranged on the wheel stretcher. The storage device capable of containing the drainage device is arranged on the side edge of the wheel stretcher, so that the drainage device can be protected, the risk that the chest drainage device is impacted or damaged during transferring is reduced, the chest drainage device is protected, and the effect of further protecting a patient is achieved. By means of the device, the technical problems that in the prior art, a drainage device placing position is not arranged on a stretcher, a drainage device is prone to falling off or being damaged in the patient transferring process, and great potential safety hazards exist on a patient are solved.

This invention relates to the field of medical device technology, specifically to a chest drainage device, comprising a collection bottle containing a small water-seal bottle suspended within it. The distance between the center of gravity of the water-seal bottle and the inner upper surface of the collection bottle is between one-third and one-half the height of the collection bottle. Both the water-seal bottle and the collection bottle are made of transparent hard plastic. An exhaust pipe and a drainage pipe are connected at the top of the collection bottle. The upper end of the drainage pipe extends outside the collection bottle, while the lower end is inside the collection bottle and extends into the water-seal bottle. The water-seal bottle acts as a damper for the collection bottle, and the damping effects of both interact with each other, making the whole device more stable and effectively reducing the impact of swaying during movement. This makes it more suitable for outdoor use, combat trauma, and other similar scenarios. Furthermore, because the water-seal bottle is small, when a patient drains effusion, the drained effusion first enters the water-seal bottle and then overflows into the collection bottle. Using the collection bottle to collect the effusion avoids both backflow and prevents the effusion from affecting the drainage effect.

The utility model relates to the technical field of medical instruments, and provides a chest drainage tube which comprises a first drainage tube and a second drainage tube which are in butt joint, a connecting structure is arranged between the first drainage tube and the second drainage tube, and the first drainage tube and the second drainage tube are connected through the connecting structure. The first drainage pipeline comprises a closure cavity communicated with the first drainage pipeline, a ball body rotatably arranged on the closure cavity and a control rod used for controlling the ball body to rotate, the ball body is provided with a circulation channel, and the ball body is controlled by the control rod to rotate, so that the circulation channel is communicated with the first drainage pipeline, and the first drainage pipeline is communicated with the second drainage pipeline. The thoracic cavity drainage tube and the thoracic cavity closed drainage bottle are connected through the elastic limiting connector and the clamping groove, the phenomenon of slipping between the thoracic cavity drainage tube and the thoracic cavity closed drainage bottle is avoided, and the connection stability is enhanced.

This invention relates to the field of medical device technology, specifically providing a wearable chest drainage device. The invention discloses a wearable chest drainage device comprising an elastic fabric garment, a waist belt, and a drainage bottle. A compression mechanism is fixed to the front of the elastic fabric garment, and a hanging rod is fixed to one side of the waist belt. The drainage bottle is hung on the hanging rod via a hook, and the drainage tube on the drainage bottle passes through the compression mechanism. One side of the elastic fabric garment is connected to one end of the hanging rod via a pull cord. This invention uses the elastic fabric garment, waist belt, and L-shaped hanging rod to form a wearable structure. The drainage bottle is suspended from the waist hanging rod via a hook, eliminating the need for fixation to the edge of the bed. Patients can get out of bed independently and perform postoperative rehabilitation exercises, reducing reliance on caregivers for traditional devices. Furthermore, the pull cord provides linkage and limitation between the hanging rod and the elastic fabric garment, effectively preventing the drainage bottle from shaking and causing traction on the drainage tube.

A mobile bodily imaging system for determination of a lung fluid content is provided, comprising: a stepped-frequency radar generator that generates one or more tone and transmits the one or more tone into a chest of the patient; a sparse deconvolution inversion algorithm to detect reflection points indicating tissue interfaces within the patient and create a sparsity-based image; an initial model generated using Markov Chain Monte Carlo or Deep Neural Network estimates; and a final model generated using a neural renderer, wherein the neural renderer is provided with confirmed data that permits the neural renderer to predict the form of the reflection points, wherein the neural renderer creates an image that is compared to the sparsitybased image, and wherein the neural renderer creates refined images in a number of iterations and / or based upon a predetermined threshold of a difference between the refined neural renderer image and the sparsity-based image.

The invention discloses a vital sign monitoring system based on a WiFi signal, which comprises two WiFi CSI data acquisition platforms, a transmitting end platform and a receiving end platform, the transmitting end platform and the receiving end platform are respectively connected with a transmitting end antenna and a receiving end antenna through radio frequency lines, the transmitting end antenna and the receiving end antenna are directional antennas, and the transmitting end antenna and the receiving end antenna are both directional antennas. The beam of the directional antenna points to the chest and abdomen of the human body, the height of the directional antenna is flush with the chest position of the human body, and wave-absorbing materials are arranged on the sight distance paths of the transmitting end antenna and the receiving end antenna. According to the invention, vital signs can be reliably extracted, and separation of breathing and heartbeat signals can be realized. The invention further discloses a vital sign monitoring method based on the WiFi signal.

The invention belongs to the technical field of medical instruments, and particularly discloses a portable chest drainage device which comprises a base plate. The water seal tank and the negative pressure adjusting tank are arranged on the chassis; the barrel cover is arranged on the chassis and surrounds the water seal tank and the negative pressure adjusting tank; the autonomous replacement mechanism is rotationally arranged on the outer side of the barrel cover; the driving mechanism is used for driving the autonomous replacement mechanism to rotate; the automatic replacement mechanism comprises an upper connecting ring coaxially arranged at the upper end of the barrel cover in a sleeving mode, a lower connecting ring coaxially arranged at the lower end of the barrel cover in a sleeving mode and a plurality of n-shaped frames which are connected between the upper connecting ring and the lower connecting ring and annularly and evenly distributed, and liquid accumulation boxes are inserted into the n-shaped frames in a sealed mode. A plurality of liquid accumulation boxes are integrated through the annular autonomous replacement mechanism, when it is detected that accumulated liquid reaches a threshold value, the mechanism drives the annular assembly to rotate rapidly and switch to the empty liquid accumulation box, in the switching process, a drainage pipeline and all cavities are automatically closed, the negative pressure of the system is kept constant, and the empty liquid accumulation box is automatically conducted after being in place; therefore, the automatic replacement of the liquid accumulation box is realized.

The present application belongs to the technical field of sleep respiratory disease detection, and is a sleep apnea identification method based on a hybrid neural network. The method uses a millimeter wave radar to perceive human sleep in a surrounding bed environment, adopts spatial two-dimensional analysis to locate the chest cavity position, and solves the interference problem in radar sign extraction of different targets at the same distance. Shannon entropy of the respiratory signal is constructed as an iteration index of the whale optimization algorithm, and the minimum index is used to realize iteration optimization of the variational mode extraction parameter, so that different breathing states are matched with different parameters to accurately extract the main frequency narrowband respiratory signal. The respiratory time-frequency energy graph obtained through data processing is used as input, and a CNN network and a bidirectional long short-term memory module are used to jointly construct a feature extraction module, so that the application can identify the frequency change trend over time, capture more comprehensive features, and accurately identify target sleep apnea. In addition, the hybrid network can accurately classify unmanned scenes, apnea, low ventilation and normal breathing.

The invention relates to a self-adjusting thoracic cavity drainage tube which comprises a drainage tube body with a drainage main channel; the drainage tube body comprises a plurality of drainage sub-tubes, the plurality of drainage sub-tubes are uniformly distributed around the axis of the drainage tube body, and each drainage sub-tube is provided with a drainage sub-channel; each drainage sub-tube comprises an expansion section, a deformation section and a drainage section which are sequentially arranged from the far end to the near end, and the multiple expansion sections and the multiple deformation sections jointly define an expansion part; the drainage main channel is defined by the plurality of drainage sections; during use, from the direction of the far end to the direction of the near end, the cross section area of the internal space of the expansion part is gradually reduced until the cross section area is the same as the cross section area of the drainage main channel. Hydrops in the thoracic cavity are drained through cooperation of the drainage main channel and the drainage sub-channels, and the drainage speed is increased. The risk that blood forms blood clots to block the drainage main channel or the drainage sub-channel can be reduced by increasing the drainage speed.

A method for planning and guiding an endoscopic procedure includes obtaining a first scan of a chest cavity at near total lung capacity, obtaining a second scan of the chest cavity at near functional residual capacity, generating a virtual chest cavity based at least in part on the first scan and the second scan, defining one or more regions of interest (ROI) in the virtual chest cavity, determining a route to the one or more ROIs based on the virtual chest cavity, directing endoscope hardware through an airway to the one or more ROIs along the predetermined route, monitoring, by a processor, a real-time position of the endoscope hardware relative to an expected position along the predetermined route, and performing an examination of the one or more ROIs when the real-time position of the endoscope hardware corresponds to an expected ROI location.

A medical dressing to treat sucking chest wound, and methods of forming the medical dressing. The methods include the steps of overlaying a cover layer on an intermediate layer and the intermediate layer on a base layer such that openings in the intermediate and base layers are aligned and the cover layer overlays the openings; fusing together the cover layer, the intermediate layer and the base layer by applying an annular welding tool face to at least one of the cover layer and base layer and applying welding energy to the template; and applying an adhesive layer on a side the base layer opposite to the intermediate layer, wherein the adhesive layer extends entirely around the opening.

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to a chest tube positioning device for thoracic surgery nursing, which comprises a first dressing part, a medical rubber ring, a second dressing part, a catheter fixing part, a clamping ring assembly and a clamping strip arranged on the clamping ring assembly. The first dressing part is coated with the medical rubber ring and attached to the skin. One end of the clamping strip can be inserted into the interior of the clamping ring assembly and change the clamping degree of the clamping ring assembly. The clamping ring assembly is sleeved on the medical rubber ring, clamps the medical rubber ring and the chest tube and keeps them fixed. The second dressing part has a spacing with the first dressing part. The catheter fixing part is arranged on the second dressing part. The present application can effectively reduce the discomfort caused by the drainage tube caused by the patient's daily activities. The pulling force will not directly act on the wound, reducing the risk of secondary trauma caused by improper management of the tube.

The application provides a scoliosis comprehensive angle detection method, device, medium, program product and terminal. First, a spine orthotopic X-ray image is acquired, then a target detection algorithm is used to automatically identify and locate the spine, pelvis and chest cavity region, and corresponding images are generated. Next, a key point detection operation is performed to generate a plurality of vertebral angle point coordinates, thoracic key points and left and right iliac crest top points. Finally, the scoliosis comprehensive angle is measured by synthesizing the data. The problem that the prior art mainly focuses on the local inclination of the spine without fully considering the overall inclination relationship between the spine and the pelvis, thereby affecting the comprehensive assessment of the scoliosis condition, is effectively solved. The automation processing is realized, the measurement accuracy and consistency are improved, the human error is significantly reduced, the medical work efficiency is improved, and the burden of doctors is reduced.

The invention discloses a closed thoracic cavity drainage apparatus, and relates to the technical field of closed thoracic cavity drainage apparatuses, the closed thoracic cavity drainage apparatus comprises a drainage apparatus shell, the upper end of the drainage apparatus shell is detachably connected with a bottle cap in a threaded manner, and the bottle cap is provided with a drainage tube for drainage and an exhaust tube for exhaust in a communicated manner. When the closed thoracic drainage device is used, the liquid seal depth is controlled to be kept unchanged all the time through mutual cooperation of the liquid seal control assembly, the supporting assembly, the elastic assembly and the adjusting assembly, so that in the drainage conveying process, drainage resistance is stable, unsmooth drainage caused by too large liquid seal depth is avoided, and the drainage effect is improved. In addition, in the telescopic transmission process of the organ tube, the organ tube in telescopic motion is supported in an abutting mode, and the phenomenon that normal conveying of drainage liquid is affected due to bending deformation of the organ tube in the telescopic transmission process is avoided.

This invention relates to a pneumatic closed thoracic drainage tube and its application method. The tube includes a drainage tube with a reinforcing ring fixedly mounted on its inner wall and a movable ring movably mounted on its inner wall, connected to the reinforcing ring by a spring. An elastic airbag and a concave groove are fitted onto the outer surface of the movable ring. Multiple through-slots are arranged in a ring at the bottom of the concave groove. A trachea for inflating and deflating the elastic airbag is fixedly mounted on the movable ring. A branch tube for the supply airbag is connected to the drainage tube. The end of the branch tube is connected to an operating handle for pulling the trachea and a position adjustment unit for adjusting the position of the operating handle. The operating handle is equipped with a pressure detection unit, a first compression balloon, and a second compression balloon. Using the method of this application, not only can the implantation detection of the last side hole be performed by monitoring the pressure change of the elastic airbag, but the elastic airbag can also be used for emergency sealing of the drainage tube and for clearing blockages in the drainage tube.

This invention relates to an active disturbance rejection control method and system suitable for biomimetic chest cavity motion simulation. The method includes: acquiring and preprocessing a nonlinear motion trajectory signal to generate an original target position command; processing the original target position command using a tracking differentiator to generate a smoothly transitioning desired position signal and desired velocity signal; receiving the actual position feedback signal of the controlled object and the control input of the previous control cycle through an extended state observer, and estimating the actual position state observation value, actual velocity state observation value, and total disturbance state observation value of the controlled object in real time; calculating the position tracking error and velocity tracking error based on the desired position signal, desired velocity signal, and the actual position state observation value and actual velocity state observation value of the controlled object, and calculating the initial state feedback control quantity; generating an actual control command and sending it to the motor driver to drive the biomimetic chest cavity motion simulation platform to reproduce the target respiratory motion trajectory.

Embodiments of the present specification provide a health monitoring method, device and system. The method comprises: transmitting a detection signal to a chest position of a target user through a radar, and receiving a reflected echo signal of the detection signal reflected by the chest position through the radar; performing health monitoring on the target user based on the detection signal and the echo signal to obtain health monitoring data; determining target phase change information of the echo signal compared with the detection signal in at least part of the period during the health monitoring, and performing user identification based on the target phase change information to determine a user identifier of the target user, and then associating and outputting the user identifier of the target user with the health monitoring data. The above scheme can continuously identify the user identity and associate and output the health monitoring data, thereby improving the efficiency and reliability of health monitoring.

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 present application relates to a kind of intelligent chest negative pressure drainage device, including electronic negative pressure device and chest closed drainage bottle;Electronic negative pressure device is equipped with negative pressure component;Negative pressure component includes: negative pressure pipe;Negative pressure connector;Negative pressure pump;And check valve;Wherein, electronic negative pressure device power consumption realizes active negative pressure mode;Electronic negative pressure device power consumption realizes chest closed drainage mode when power is exhausted.Through the combination of mechanical structure and electronic control, with " active negative pressure " and " chest closed drainage " two working modes, realize active negative pressure mode when power is normal;When power interruption or system failure, automatically, seamless switch to water seal drainage mode without power, switching process is based on mechanical characteristics, without manual intervention, greatly improve clinical safety, completely solve the failure risk of electronic system when power off.Combination water seal liquid physical barrier and check valve structure, form double anti-reflux protection, can effectively prevent gas or liquid reflux.