274 results about "Thoracic structure" patented technology

The invention belongs to the technical field of medical imaging and digital twinning, and discloses a thoracic cavity whole organ system level lung four-dimensional EIT detection digital motif and a library building method, and the method comprises the following steps: S1) segmenting multiple organs such as double lungs, heart, sternum, rib and thoracic vertebra central axis skeleton, main bronchus and esophagus based on an individual CT image, and building a three-dimensional geometric model integrated with an EIT electrode array; s2) simulating breathing dynamic deformation by using a solid mechanical model; s3) establishing a coupling relationship between deformation and conductivity, and generating dynamic three-dimensional conductivity distribution; s4) solving an electromagnetic field positive problem, and generating a virtual EIT voltage database synchronous with respiration; the invention also covers pathological model integration and data enhancement strategies. According to the method, a high-fidelity, large-scale and diversified EIT virtual data set can be generated, core data support is provided for training and verifying an AI intelligent reconstruction algorithm, and a model foundation is laid for developing a lung function dynamic digital twinning system.

The invention proposes a thoracic surgery intelligent planning system based on multi-modal image fusion, and relates to the technical field of surgery planning, and the system comprises an image processing module which is used for receiving multi-modal medical image data, carrying out the preprocessing and cross-modal registration of the medical image data, and generating fused image data; the three-dimensional reconstruction module is used for segmenting the key anatomical structure in the thoracic cavity based on the fused image data and constructing a three-dimensional model; the operation planning module is used for generating a candidate operation path scheme according to a multi-objective optimization algorithm based on the three-dimensional model; the interaction adjustment module is used for determining a final operation path scheme and updating a risk assessment result in real time; and the report generation module is used for generating a surgical planning report. The method can solve the problems that the existing multi-modal image registration precision is insufficient, the sensitivity of three-dimensional reconstruction to a tiny anatomical structure is low, and the surgical path planning is lack of dynamic risk assessment and real-time interaction adjustment capability, and realizes the generation and optimization of a high-precision and high-safety thoracic surgery planning scheme.

The invention discloses a point cloud-driven thoracic cavity whole organ dynamic reconstruction and respiration monitoring method and system, and the method comprises the steps: constructing a three-dimensional geometric model corresponding to each target structure in a thoracic cavity based on the thoracic medical image data of a target object, and converting the three-dimensional geometric model into static point cloud data; driving the static point cloud data to perform dynamic deformation simulation in a respiratory cycle based on a respiratory movement rule of the target object to obtain dynamic point cloud data synchronized with a respiratory time phase; performing time-space synchronization association on the dynamic point cloud data and the electrical characteristic parameters, and constructing a digital twin thoracic cavity model; deploying a virtual sensing assembly which dynamically deforms along with the thoracic cavity in the digital twin thoracic cavity model, simulating and monitoring the dynamic breathing process of the target object, and generating a virtual physiological signal; and performing signal processing on the virtual physiological signal to obtain a dynamic reconstruction image reflecting respiratory movement. Continuous simulation of the full-breathing movement process is achieved, and the temporal-spatial resolution and diversity of a virtual database are improved.

A non-contact real-time monitoring system of physiological signs based on millimeter-wave radar includes a millimeter-wave radar and multiple modules for processing radar signals. The millimeter-wave radar is configured to continuously transmit electromagnetic wave signals and simultaneously receive echo signals, perform frequency mixing processing on the echo signals to obtain an intermediate frequency signal, and process the intermediate frequency signal to obtain a radar four-dimensional data matrix. Human body physiological signs are monitored by analyzing body thoracic cavity micro-motion information in signals through the modules; a target echo is processed by adopting a constant false alarm rate detection algorithm, and invalid signals are filtered. A self-adaptive range cell selection algorithm based on short-time stability of respiratory signals is adopted to capture radar echoes reflecting physiological movement. Mixed human body physiological sign signals are processed by using a VMD algorithm, and key parameters in VMD are optimized by using a GWO algorithm.

The invention discloses a thoracic surgery patient postoperative remote monitoring method and system based on the Internet of Things, and relates to the technical field of medical rehabilitation monitoring. Feature index extraction is carried out by taking body position pressure and respiration collaborative response as a two-factor dynamic evaluation basis, so that high-sensitivity judgment on a thoracic cavity load state is formed; after the abnormal state is recognized, body position adjustment is carried out, acoustic feedback analysis is linked, secondary evaluation after body position adjustment is achieved, intervention effectiveness of body position adjustment is ensured, personalized adjustment suggestions are automatically generated, the whole process of'perception-recognition-execution 'of remote monitoring is opened, the intelligent level and response real-time performance of postoperative recovery management are improved, and the postoperative recovery management efficiency is improved. According to the overall scheme, health risks caused by position misjudgment, intervention lag and monitoring blind areas in a traditional system are effectively avoided.

The application discloses a thoracic surgery puncture drainage device, 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 component communicated with the drainage tube. The negative pressure component comprises an inflatable rubber tube and a shell. An adjusting assembly matched with the inflatable rubber tube is installed on the shell, and the adjusting assembly is used for driving the inflatable rubber tube to stretch and deform. The thoracic surgery puncture drainage device can adaptively drain liquid according to the fluctuation frequency and fluctuation degree of the thoracic cavity when draining the thoracic cavity effusion, effectively reduces the damage to the thoracic cavity, can pressurize and dredge when the drainage tube is slightly blocked, can backwash and dredge when the drainage tube is highly blocked, realizes the integration of dredging and drainage, avoids the backwash and dredging air from entering the drainage device to cause drainage infection, has higher safety, and is more convenient to operate.

The invention discloses a thoracic surgery postoperative drainage monitoring data processing method and a thoracic surgery postoperative drainage monitoring data processing system. The method comprises the following steps: synchronously acquiring thoracic respiration dynamic characteristics of a patient and fluid dynamic characteristics of a thoracic closed drainage system through a data acquisition module; the central processing server establishes a time sequence mapping relationship between the two, performs feature fusion analysis, and calculates to obtain a thoracic cavity-pipeline coupling efficiency index; performing logic judgment on the postoperative recovery state of the patient on the basis of the index, and identifying a chest-pipeline fluid transmission state including breathing work limitation, drainage channel blockage and pleural cavity air leakage; and dynamically generating a grading equipment response strategy including adjusting training intensity and triggering pipeline maintenance early warning or analgesia intervention according to an identification result. According to the method, accurate recognition and closed-loop management of postoperative complications are achieved by quantitatively evaluating the linkage relation between respiration driving and drainage response.

The invention provides a non-invasive LVEF monitoring method and system based on millimeter wave radar chest displacement signals. The method comprises the steps that S1, millimeter wave radar signals are transmitted; s2, thoracic cavity micro-motion signals are collected; s3, preprocessing the thoracic cavity micro-motion signal; step S4, separating vital signs; s5, extracting heart failure features; step S6, risk assessment; and S7, outputting a result. According to the invention, a set of non-contact and continuous monitoring cardiac function evaluation system is constructed through creative combination of a radar sensing technology and medical diagnosis, and compared with a traditional LVEF detection method (such as echocardiography, cardiac MRI and the like), breakthrough improvement in clinical practicability, data continuity and technical universality is realized.

The invention discloses a thoracic cavity heart sound signal non-contact extraction system and method based on structured light. The system comprises a structured light projection module, an image acquisition module, an image processing and displacement extraction module and a signal processing and trigger point identification module, structured light is projected on the surface of the chest of a human body to form a regular pattern, and a high-speed image acquisition means is utilized to record micro displacement change generated by light spots under cardiac drive. Thoracic cavity vibration information is extracted through an image processing technology, periodic feature points corresponding to a cardiac rhythm are recognized in combination with a time sequence analysis strategy, a thoracic cavity heart sound signal is extracted, rhythm analysis is conducted, and a cardiac trigger point is output to serve as a trigger signal for synchronous control of medical equipment. The technical problems of signal distortion, equipment interference, potential safety hazards, inconvenience in use and the like in a strong electromagnetic environment in a traditional contact mode are solved, and a high-precision synchronous trigger signal is provided for dynamic imaging.

The application discloses a thoracic cavity closed drainage bottle, which comprises a collecting bottle, a water seal bottle and a pressure measuring bottle, a liquid level alarm assembly and a fan assembly are arranged in the collecting bottle, a connecting pipe is arranged at the top end of the collecting bottle, and a dredging assembly is arranged in the connecting pipe; the liquid level alarm assembly is hung in the collecting bottle; the fan assembly is arranged below the bottom end of the connecting pipe which extends into the collecting bottle; the dredging assembly comprises a pressure increasing part, first opening and closing valves, second opening and closing valves, third opening and closing valves and a side pipe; the first opening and closing valves and the second opening and closing valves are arranged at the top end and the bottom end of the connecting pipe; the pressure increasing part is arranged outside the top end of the connecting pipe, and the side pipe is arranged outside the bottom end of the connecting pipe; and the third opening and closing valves are arranged in the side pipe. The application can monitor the amount of thoracic fluid in the collecting bottle, can determine the tendency of active bleeding in time, can give a prewarning when the amount of thoracic fluid in the collecting bottle is about to be full, and can automatically dredge when the pipeline is blocked during the drainage process, so that the tube pulling operation is not needed, and the pain of the patient is reduced.

The invention discloses a four-dimensional EIT respiration monitoring method based on digital twinborn assistance, which comprises the following steps: firstly, constructing an individualized digital twinborn model which comprises an accurate three-dimensional geometric structure and electrical characteristic parameters and covers thoracic cavity whole organ systems including double lungs, a heart, a central axis skeleton, a main bronchus, an esophagus and the like on the basis of a chest medical image CT of a patient; the method comprises the steps that firstly, a stable and standardized theoretical reference voltage is generated on a model through electromagnetic field simulation, then, virtual-real fusion is conducted on the theoretical reference voltage, a clinically-collected voltage signal in real time and a clinically-actually-measured reference voltage sequence, and finally, a four-dimensional conductivity change image is reconstructed based on the fused dynamic voltage difference. According to the method, reference drift is effectively inhibited, individualized anatomical information is fused, and semi-absolute quantitative evaluation of the pulmonary ventilation function is achieved.

The invention discloses a preparation method and system of a mouse craniocerebral thoracico-abdominal combined injury dynamic model based on AI, and belongs to the technical field of biomechanical injury. The method comprises the steps that impact is applied to a mouse skull, and the impact is conducted along an organ synergistic conduction chain so as to induce the craniocerebral thoracico-abdominal combined injury of the mouse; in the impact applying process, multi-modal physiological data are synchronously collected; and inputting the collected multi-modal physiological data into an AI analysis model, analyzing the injury mechanism of the craniocerebral thoracic-abdominal combined injury, and establishing a dynamic model based on an analysis result. According to the technical scheme provided by the invention, high-simulation modeling of multi-organ cascade injury is realized by constructing the organ synergistic conduction chain from the brain to the thoracic cavity; in combination with multi-modal physiological data synchronous acquisition and an AI analysis model, injury time sequence characteristics can be accurately extracted, a causal path of a local injury initiation system response is established, and the precision and practicability of compound injury mechanism prediction are improved.

Systems, devices and methods are provided for supporting cardiac function. A device comprises an elongate housing configured for implantation into a patient exterior to the chest cavity. The housing includes a first inlet and an outlet that define a primary blood flow path from the left atrium through at least a portion of the housing within the right atrium, and to the aorta. The housing comprises a motor disposed within the housing and an impeller coupled to the motor for pumping blood from the first inlet to the outlet of the housing through the primary blood flow path. The device bypasses the left ventricle by drawing freshly oxygenated blood from the left atrium and propelling this blood directly into the aorta. Implanting the pump exterior to the chest cavity is less invasive and allows the pump to be quickly and easily repaired, cleaned, repositioned and or replaced without removing or replacing the tubes that are anchored to sensitive tissue structures within the thoracic cavity.

The invention discloses a thoracic cavity three-dimensional electrical impedance tomography method and thoracic cavity three-dimensional electrical impedance tomography equipment. The method comprises the following steps: acquiring a three-dimensional point cloud of the appearance of a chest area of a testee to establish a three-dimensional chest model; carrying out equipment self-inspection and checking the bonding condition of the electrode; generating a determined excitation signal and injecting the excitation signal into the testee; acquiring a voltage signal of each electrode; separating EIT and ECG signals and filtering the EIT and ECG signals; according to a three-dimensional thoracic cavity model of the testee, performing positive problem calculation on the voltage signal to obtain the potential of each electrode of the three-dimensional thoracic cavity model; and performing three-dimensional reconstruction by adopting a single-step Gaussian Newton method to obtain a lung ventilation change electrical impedance imaging graph. According to the method, the three-dimensional thoracic cavity model of the testee is constructed, the positive problem solution is performed on the voltage signal, and the image reconstruction is further performed, so that the real-time high-precision three-dimensional dynamic imaging of the thoracic cavity of the testee can be completed, and the imaging accuracy is high.

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 intelligent chest drainage and dynamic monitoring system, which belongs to the field of surgical operations and comprises a drainage tube, a pressure monitoring module, a drainage liquid character monitoring module, a drainage quantity monitoring module, a parameter setting module, a data processing and analyzing module, a display early warning module and a remote communication module. Real-time and accurate monitoring of parameters such as pressure in the thoracic cavity, drainage amount and drainage liquid characters is achieved, postoperative bleeding, air leakage, infection and other complication risks can be found and early warned in time according to monitoring data, the structural design of the drainage tube is optimized, the flexibility and anti-blocking performance of the drainage tube are improved so that the drainage tube can adapt to different operation scenes and patient requirements, and the operation efficiency is improved. A comprehensive and scientific decision basis is provided for clinicians, so that the safety, the effectiveness and the intelligent level of chest drainage treatment are improved.

The invention relates to the technical field of medical equipment, in particular to a multifunctional pleuroperitoneal fluid drainage device and system for treating lung injury, the device comprises a drainage tube, the drainage tube is communicated with a plurality of negative pressure tubes, and the ends, away from the drainage tube, of the negative pressure tubes are communicated with a negative pressure machine used for generating negative pressure suction force; the drainage tube is communicated with a plurality of flushing tubes used for conveying flushing fluid, the outer wall of the drainage tube is further provided with a wriggling mechanism used for externally pushing the drainage tube, the wriggling mechanism comprises a fixed groove body and a pushing wheel, the drainage tube is located in the fixed groove body, and the pushing wheel abuts against the drainage tube; an opening and closing mechanism is arranged on the side, close to the drainage tube, of the fixed groove body and used for communicating the flushing tube with the drainage tube based on pressing of the pushing wheel; the drainage tube is used for reducing the risk of blockage of the drainage tube and maintaining the stability of suction pressure so as to keep continuous extraction of hydrops in the thoracic cavity of a patient.

The invention relates to a method for preventing and monitoring blood pressure based on terahertz radar electrocardiogram heart rate variation parameters, and belongs to the field of terahertz radar signal processing. The method comprises the steps that a human thoracic cavity micro-motion signal is collected through a terahertz radar, an intermediate frequency signal is obtained through ADC sampling, distance dimension Fourier transform and phase unwrapping processing are carried out, and a target object is obtained; extracting a chest displacement signal containing heartbeat information; band-pass filtering is adopted to preliminarily separate respiration and heartbeat signals, and variation mode decomposition optimized by an ant colony algorithm is introduced to effectively suppress respiration harmonic interference; inputting the heartbeat signal into a multi-modal deep learning framework fusing a convolutional neural network, a long-short-term memory network and a multi-head attention mechanism to realize end-to-end high-precision reconstruction from a radar mechanical vibration signal to a standard electrocardio waveform; r peak detection is conducted on the reconstructed radar ECG signals, and time domain and frequency domain heart rate variability parameters are calculated and used for evaluating the autonomic nerve function state. The method has the effect of improving the monitoring comfort of special crowds.

A system for improving cardiac performance includes a delivery tube and an expandable implant sized for delivery within the delivery tube. The expandable implant is adjustable between an expanded form and a compressed form. In the expanded form, the expandable implant is sized and shaped to extend beyond the delivery tube for compressing a portion of a heart. The expandable implant may take the form of a balloon and may be inflated and deflated during use. A sensor is preferably provided for measuring cardiac rhythm, wherein the expandable implant moves in synchronization with the measured cardiac rhythm. The sensor is preferably coupled to the expandable implant. The delivery tube may be sized for advancement through a thoracic cavity.

The invention provides a thoracic surgery teaching assistance method and system, and the method comprises the steps: constructing a thoracic surgery virtual operation interaction environment based on a digital twin technology, and endowing a virtual thoracic cavity tissue model with initial biomechanical parameters; an operation instruction data sequence of an operator for the virtual surgical instrument is collected in real time through the man-machine interaction interface; based on the operation instruction data sequence, calculating an operation disturbance characteristic index representing the motion dispersion degree of an operator in real time by using a sliding time window algorithm; establishing a dynamic evolution mapping model of an operation disturbance characteristic index and a biomechanical parameter, dynamically correcting an initial biomechanical parameter of the virtual tissue according to the index calculated in real time, and when the index exceeds the standard, controlling the parameter to deviate to an easily damaged state so as to simulate histopathologic change caused by rough operation; and performing physical collision response calculation and three-dimensional picture rendering according to the evolved model. According to the invention, dynamic coupling of operation behaviors and organization characteristics is realized, and the physical reality sense of teaching is improved.

A surgical method for expanding a thoracic cage during a surgical procedure includes cutting through a thoracic cage to create an upper thoracic cage portion and a lower thoracic cage portion, separating the first thoracic cage portion and the second thoracic cage portion to open the thoracic cage, and installing, between the first thoracic cage portion and the second thoracic cage portion, a device that holds the first thoracic cage portion and the second thoracic cage portion apart from each other to expand a thoracic cavity of the thoracic cage. The surgical method includes a post-surgical cavity volume of the thoracic cage that is larger relative to a pre-surgical cavity volume of the thoracic cage.

The utility model provides a thoracic cavity pipeline fixing device for nursing, and belongs to the technical field of medical instruments. Comprising a bottom frame pad, a binding piece is connected to the top of the bottom frame pad, a dressing pad is arranged in the bottom frame pad, the dressing pad can be fixed to the surface of a human body through cooperation of the binding piece and the bottom frame pad, the bottom frame pad is fixed to the human body in an adhesive mode, and the binding piece is fixed to the bottom frame pad in an adhesive mode. By arranging the bottom frame pad, the bottom frame pad is directly fixed to the skin of the human body, the binding piece can be fixed to the human body through the bottom frame pad, meanwhile, the drainage tube is fixed, the binding piece and the bottom frame pad are detachably fixed, so that the binding piece can be rapidly detached when a wound is nursed, and the replacement effect is improved; and the pain of the patient caused by repeated tearing is avoided.

This invention discloses a human fixation device suitable for lumbar puncture in children, comprising: a bed with an mounting surface; a thoracic restraint device disposed on the mounting surface, the thoracic restraint device including a first restraint surface and a first restraint strap, the first restraint strap binding the thoracic cavity of the human body to the first restraint surface; a lumbar guide assembly, the lumbar guide assembly being a guide plate for attaching to the lumbar region of the human body, the guide plate having guide perforations; and a leg restraint device rotatably connected to the mounting surface, the leg restraint device including a second restraint surface and a second restraint strap, the second restraint strap binding the human legs to the second restraint surface. The thoracic and leg restraint devices achieve restraint of the upper and lower body of the human body, and the restraint straps can simultaneously fix the patient's upper arm and forearm, thereby significantly reducing patient mobility and improving the restraint effect.

The application provides a thoracic cavity data monitoring method and device, electronic equipment and a storage medium. The method sets an alternating drainage mode and a breathing mode in a thoracic cavity drainage device, and adds a breathing component. The original drainage component performs drainage in the drainage mode and suspends drainage in the breathing mode. The added breathing component performs breathing pleural pressure monitoring in the breathing mode. The application determines that the work needs to be stopped when the continuous drainage flow data, the continuous air leakage flow data and the continuous breathing pleural pressure data all meet the reference index. The determination is based on the continuous breathing pleural pressure data rather than discrete data, so that secondary drainage is not needed, that is, the application is more accurate in determining the stopping time of the thoracic cavity drainage device.

A robot includes a torso structure, a head structure, robotic arms, gripper structures, and a chassis driving structure. The torso structure includes a lower leg assembly, a thigh assembly, and a thoracic cavity assembly. A first torso motor, a second torso motor, and a third torso motor enable a multi-joint rotation within a plane formed by a first direction and a second direction. A fourth torso motor drives the thoracic cavity assembly to rotate relative to the thigh assembly around an output shaft of the fourth torso motor within a plane formed by the second direction and a third direction. Two opposite sides of the end of the thoracic cavity assembly facing away from the thigh assembly are provided with the robotic arms respectively, and the gripper structures are securely mounted at tail ends of the robotic arms respectively.

The invention relates to the technical field of medical apparatus and instruments, in particular to a thoracic catheter rapid fixing device based on rapid clamping, comprising: a medical single-sided patch, on which a yoke plate is detachably mounted; the two sets of first arc-shaped pieces are installed on the yoke plate in a sliding mode, two sets of second arc-shaped pieces are symmetrically and rotationally installed on the first arc-shaped pieces, and the ends, away from the first arc-shaped pieces, of the second arc-shaped pieces are connected through elastic rubber pieces; the traction plate is installed on the yoke plate in a sliding mode, an energy storage part is arranged on the traction plate, and the energy storage part is matched with an elastic assembly arranged on the yoke plate, so that the elastic assembly has an energy storage state and an energy release state; and the pushing structure is connected with the traction plate and the first arc-shaped pieces, the pushing structure can drive the two first arc-shaped pieces to move close to each other when the elastic assembly is in the energy release state, and the portability of the thoracic cavity indwelling catheter during disassembly is improved.

The invention belongs to the technical field of postoperative compression hemostasis equipment, and particularly relates to a thoracic cavity postoperative compression hemostasis protection device which comprises a compression cloth piece, a through hole is formed in the upper surface of the compression cloth piece, a protection cover is fixedly connected to the hole wall of the through hole, and two symmetrically-distributed arc-shaped open grooves are formed in the outer wall of the bottom end of the protection cover; the bottom end of the protective cover is fixedly sleeved with an elastic sealing rubber cover, and the inner wall of the protective cover is fixedly connected with a compression hemostasis mechanism. The chest post-operation compression hemostasis protection device not only has the functions of compression hemostasis, sealing isolation protection and visual compression force, but also has the capability of accurately controlling the compression force to avoid the situation that the compression force is too large or too small, and also has the function of preventing body tissues on the two sides of an incision after the chest operation from being pulled to prevent the incision from being secondarily damaged, so that the safety of a patient is improved. The use reliability of the device is effectively improved, the recovery safety and comfort of a patient are improved, and the compression hemostasis and recovery effects of the patient after the thoracic surgery are guaranteed.

The application provides a safe and effective water seal bottle for closed drainage of thoracic cavity, a liquid storage cavity is connected with the right top end of a U-shaped negative pressure display, the middle part of a right tube is connected with a water seal cavity, the top end of a left tube is communicated with atmosphere, and a thoracic cavity effusion and gas drainage tube is arranged on the top of the liquid storage cavity; the top of the water seal cavity is sequentially connected with a drainage flow control valve, a negative pressure adjusting valve and a negative pressure generator; a first floating ball float rod in the liquid storage cavity penetrates through a first connecting tube upward and is fixed to an outer shell; a second floating ball is arranged on the upper end of the left tube, and a third floating ball is arranged on the top end of the right tube. The first connecting tube is provided with a one-way valve; the negative pressure display and the water seal cavity are filled with liquid, the liquid surface is higher than the right side of the negative pressure display when there is no negative pressure, the liquid is connected with the water seal cavity, and a slanting tube is arranged below the liquid surface of the water seal cavity; the application is injected with standard water when leaving the factory, liquid does not need to be injected into the water seal cavity and the negative pressure observation cavity when being used, and the application is provided with an over-negative pressure automatic protection function, a slanting tube observer and a flow adjusting valve, is convenient to move and carry, and prevents the liquid in the liquid storage cavity from flowing back.

The application discloses a skin tension device suitable for thoracentesis, and relates to the technical field of thoracentesis. The tension device comprises a base, a moving stretching component, a thoracentesis limiting component, an angle adjusting device and a supporting device. When working, a patient sits on the base, the height of the base can be adjusted according to the height of the patient, and the supporting device can provide suitable back support for the patient. After the patient sits down, medical staff drives the angle adjusting device to adjust the whole thoracentesis tension device to a suitable angle of the thoracic cavity area to be punctured of the patient, then the moving stretching component generates a moderate tension on the skin, and the skin at the puncture site is taut, thereby creating good conditions for subsequent puncture operation. Meanwhile, the thoracentesis limiting component can preliminarily guide and limit the direction and depth of the puncture needle. The skin is taut through the moving stretching component, and the application has the effect of meeting different puncture requirements.

The invention relates to the technical field of medical instruments, in particular to a thoracoscope for thoracic surgery, which comprises a thoracoscope body sleeve and a thoracoscope tube, the thoracoscope body sleeve is fixedly connected with the thoracoscope tube, and a working opening is formed in one end, far away from the thoracoscope body sleeve, of the thoracoscope tube; a working assembly is arranged on the inner side of the endoscope tube and located at the end away from the endoscope body sleeve in a sliding mode, and a driving mechanism for controlling the working assembly to linearly move in the length direction of the endoscope tube is arranged in the endoscope body sleeve. By the adoption of the technical scheme, the working assembly at the end of the endoscope tube can be protected, a camera is prevented from being polluted before an operation or in the process of being inserted into the thoracic cavity of a patient, the camera shooting effect is prevented from being affected, and the operation efficiency is improved to a certain degree.