102 results about "Chest abdomen" patented technology

The invention relates to the technical field of medical instrument control, in particular to a lung biopsy sampling needle stabilizing method and system based on dynamic respiration compensation. The stabilizing method comprises the following steps: acquiring a respiratory movement signal of a patient in real time through a multi-source biosensor, wherein the multi-source biosensor comprises an optical fiber strain sensor array, a diaphragm myoelectricity sensor and a respiratory airflow sensor which are deployed at the chest and abdomen. According to the method, millimeter-microsecond-level accurate and stable control over the lung biopsy sampling process is achieved by establishing a cooperation mechanism of a breathing phase-displacement nonlinear mapping model and a macro-micro composite driving framework. The biological rationality of displacement prediction is improved through deep coupling of multi-mode breathing signals, and the chest wall non-uniform deformation gradient is analyzed in space based on cross topology deployment of an optical fiber strain sensor in an intercostal space area in combination with cross-scale feature fusion of myoelectricity and airflow sensing.

The invention discloses a sleep monitoring method and system based on a non-contact video data sequence. The method comprises the steps that S1, video data streams of human body sleep are collected through a camera system; utilizing a YOLOv11 network to obtain face video data and thoracoabdominal video data; s2, the RPPG signal extraction model extracts and obtains an RPPG signal by using the face video data; s3, the breathing signal extraction model extracts thoracic and abdominal micro-motion change characteristics in the thoracic and abdominal video data by using an optical flow method, and noise filtering processing is carried out to obtain thoracic and abdominal motion signals as breathing signals; s4, the oxyhemoglobin saturation extraction model detects and outputs an oxyhemoglobin saturation signal by using the RPPG signal; and S5, performing multi-modal fusion analysis on the multi-physiological index fusion recognition model according to time slice T1 division to obtain a long-time-sequence sleep stage staging result. According to the invention, the physiological index signals are extracted and recognized by adopting the non-contact video data sequence, and the sleep stage staging result with a long time sequence is obtained, so that high-precision sleep monitoring and sleep stage recognition are realized.

The invention discloses a real-time image registration and path planning system in bronchoscope surgical navigation, relates to the technical field of image registration, and is used for solving the problems that in a thoracic and abdominal minimally invasive interventional operation, organ movement and deformation caused by breathing of a patient can cause obvious influence on the registration precision of a navigation system, and the navigation precision is poor. Space registration of preoperative images and an anatomical structure of a patient in an operation often has errors due to mismatching of breathing phase changes; multi-attitude data are fused, the respiration interference degree is comprehensively evaluated through double indexes, the problem that a traditional static deformation field cannot be matched with dynamic respiration is solved through respiratory cycle driving deformation prediction, displacement errors are corrected through tidal volume observation values, and B spline control point weights are reversely optimized through registration residual errors. A deformation field can adapt to breathing amplitude and frequency differences of different patients, online distillation learning is carried out by taking a registration error output by a filter as a teacher signal, and local residual deformation and chronic changes which are difficult to describe by a traditional global model are accurately captured.

The invention discloses a real-time respiratory movement prediction and compensation method for thoracic and abdominal radiotherapy. A respiratory signal acquisition module, a respiratory movement prediction module, a body surface mark point position monitoring module, a body surface mark point displacement prediction module, a body surface mark point coordinate conversion module, a tumor target center point prediction module and a tumor target visualization module are included. The invention discloses a respiratory movement prediction system based on a causal convolutional network, and the system achieves the precise prediction of the position of a tumor target region in the future by collecting a respiratory waveform signal and a body surface mark point movement track of a patient in real time, extracting a periodic movement mode, and predicting the three-dimensional displacement of the tumor target region in 0.5-2 seconds in the future.

The invention belongs to the field of lung medical data processing and radiotherapy, and discloses a respiratory feature extraction method for chest and abdomen body surface point cloud partitioning by considering a lung physiological structure. After the body surface point cloud image is differentiated, correlation coefficient calculation is carried out according to a lung lobe model reconstructed by a lung 4DCT image, a body surface area highly correlated with a lung lobe structure is selected to carry out motion information dimension reduction recombination, and finally body surface global features of breathing are represented in a three-dimensional vector form. Compared with the prior art, the method has the advantages that the influence of the lung physiological structure on the lung tumor movement mode is creatively considered, meanwhile, the advantages of being noninvasive and free of extra dosage are kept, a new thought can be provided for development of the radiotherapy image guide technology, and further research in the field of thoracic and abdominal activity tumor radiotherapy is facilitated.

The invention relates to a CT-guided thoracic and abdominal puncture guiding method for reducing the influence of respiratory movement. The method comprises the following steps that S1, a respiratory movement curve of a target object in a free breathing state is obtained; s2, in the free breathing state of the target object, according to the breathing motion curve, controlling CT imaging equipment to scan the target tissue through breathing gating in the curve area of the target object, and obtaining a CT scanning image of the target object; s3, the CT image in the S2 is matched with the respiratory movement curve in the S1, and the marked curve serves as a reference curve of the puncture moment; s4, determining a body surface needle insertion position of the puncture target tissue according to the CT image obtained in S2; and S5, monitoring the respiratory movement of the target object during puncture, obtaining a respiratory movement curve, and when the respiratory movement curve is located at the target tissue image identification point in the reference movement curve in the S3, determining the puncture moment for the target tissue. According to the invention, the puncture accuracy can be improved.

The invention discloses an improved RRT path planning method for robot-assisted puncture based on SAC guided sampling, and the method comprises the steps: carrying out the reconstruction of a human chest and abdomen actual physiological structure three-dimensional model based on a CT image, and obtaining the human chest and abdomen actual physiological structure three-dimensional model as an obstacle for subsequent path planning; establishing a reinforcement learning environment based on the obstacle, including setting a state space, an action space and a reward function; in a reinforcement learning environment, based on obstacles, adopting an SAC algorithm to carry out SAC guide sampling model training of flexible needle path planning; adjusting and optimizing target parameters of the SAC guide sampling model based on obstacles; and sampling in the improved RRT path planning based on a mixed sampling strategy by using the parameter-optimized SAC guide sampling model to obtain a feasible path. Through a mixed sampling strategy, balance is obtained between the global search capability of uniform sampling and the local optimization capability of non-uniform guide sampling, so that the adaptability and planning efficiency of the algorithm in a complex scene are improved.

The invention provides a spinal operation bracket, and belongs to the technical field of medical instruments, the spinal operation bracket comprises a frame main body, a head supporting part, a thoracic and abdominal supporting part and a leg supporting part are sequentially arranged from the head end to the tail end of the frame main body, and the spinal operation bracket further comprises a heat preservation device rotationally arranged on the side of the leg supporting part; the heat preservation device can be rotationally arranged on the top side of the leg supporting part in a covering mode so as to preserve heat of the legs of the patient, the probability of thrombus occurrence of the patient is reduced, and the defect that original thrombus falls off due to the fact that the legs of the patient are stimulated can be overcome. Meanwhile, the parts for supporting the chest, the abdomen, the thighs and the shanks can be adjusted according to the physical condition of the patient, so that the operation bracket is more suitable for the patient, the patient feels more comfortable, and meanwhile the stability of the patient on the operation bracket can be guaranteed.

The invention discloses an intelligent critical case early warning analysis system based on multi-source clinical data fusion, belongs to the technical field of image processing, and can more accurately carry out respiration monitoring and early warning. Comprising a respiratory movement analysis module used for generating a respiratory movement amplitude change curve according to thoracic and abdominal movement video data; the breathing machine waveform analysis module is used for generating waveform characteristic data containing abnormal time slices according to the breathing machine waveform data; the blood oxygen signal processing module is used for generating a blood oxygen change trend vector according to the blood oxygen saturation degree signal data; the multi-modal fusion module is used for generating a multi-dimensional physiological feature vector under a synchronous timestamp according to the breathing movement amplitude change curve, the waveform feature data and the blood oxygen change trend vector; the risk assessment module is used for generating a breathing compensation state score according to the multi-dimensional physiological feature vector; and the alarm triggering module is used for triggering a grading alarm signal according to the deviation degree of the breathing compensation state score and the baseline range.

The invention belongs to the technical field of postoperative incision protection, and particularly relates to a surgical incision protection device for thoracic surgery patients, which comprises a back plate assembly, a thoracic-abdominal assembly is arranged on the back plate assembly, one end of the thoracic-abdominal assembly is connected with a belt retracting device, a waist support plate is arranged on the lower side of the back plate assembly, and a first fixing belt is arranged on the waist support plate. According to the chest and abdomen assembly, through cooperation of the belt collecting device and the isolation protection device, the belt collecting device can adjust the tension of the chest and abdomen assembly in real time based on a tension sensor, and a buffering air bag and elastic spokes of the isolation protection device synchronously buffer impact; a tension adjusting-buffering protection dual-protection system is formed, the chest and abdomen traction force generated when the patient moves or bends down can be accurately counteracted, and the incision is prevented from being torn due to traction.

A rescue vest for deepwater operators comprises a first partition and a second partition which are located in front of the left chest and the right chest respectively, a third partition located on the abdomen, a fourth partition surrounding the neck, a fifth partition located on the back shoulder, and a sixth partition and a seventh partition which are located on the side chest and the abdomen respectively, and each partition is internally provided with a heat production and oxygen production unit; the heat and oxygen production unit comprises a closed cavity, a first reaction cavity and a second reaction cavity are arranged in the closed cavity, and inner cavities of the first reaction cavity and the second reaction cavity are sealed by isolation films; and a vacuum reaction cavity is arranged in the closed cavity outside the first reaction cavity and the second reaction cavity. The device can simultaneously play roles of heat preservation, oxygen supply, floating and the like, and the generated gas is only oxygen, so that the device plays a huge role in closed environment and underwater operation, and solves the problem of lifesaving of deepwater operating personnel under the condition that the deepwater parking temperature of a submersible and an oxygen system disappear.

The invention provides a sleeping posture and breathing state combined monitoring analysis method, device and equipment and a medium, and relates to the technical field of artificial intelligence. The multi-channel signal is a chest and abdomen mixed vibration signal when a human body is in a sleep state; inputting the multi-channel signal into a pre-trained joint monitoring analysis model to obtain a joint monitoring analysis result output by the joint monitoring analysis model; wherein the joint monitoring analysis result is a correlation analysis result of the sleeping posture and the OSA. By means of the mode, synchronous combined monitoring of the sleeping posture and the OSA is achieved, and the relevance between the sleeping posture and the OSA can be effectively analyzed.

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 discloses a neonatal kangaroo type nursing method, which relates to the technical field of neonatal nursing, and comprises the following steps: S1, guiding a nurse to lean against the neonatal kangaroo at an inclination angle of 60-90 degrees, and putting a back cushion on the back to keep the posture stable; s2, executing baby meeting and skin attaching operation, so that maximum-area skin direct contact between the newborn and the nurse is realized; s3, placing the newborn on the chest and abdomen of the caregiver in a vertical prone posture, and enabling the head of the newborn to turn to one side so as to keep the respiratory tract unobstructed; by constructing a parameterized and standardized nursing process, the safety and operability of neonate kangaroo type nursing are remarkably improved, a nurse stably leans obliquely at a scientific angle of 60-90 degrees, and in combination with the infant body position of vertical lying prone-head side turning, the smoothness of the respiratory tract is fundamentally guaranteed, the asphyxia risk is greatly reduced, and the nursing effect is improved. The whole action process is clear, and the technique is clear.

The invention relates to the technical field of medical simulation devices, in particular to an artificial intelligence driven thoracic and abdominal movement simulation die body which comprises internal soft tissue equivalent to a human tissue CT value, the simulation die body can simulate movement of the heart, the lung, the liver, the intestinal tract and the tumor at the same time, surface movement simulation of the die body is considered, and the simulation effect is good. Simulation movement is achieved through multiple maneuvering modes, and movement of thoracic and abdominal organs, tumors and body surfaces is restored to the maximum extent. The model body is made of a simulation material equivalent to a human tissue CT value, it is ensured that the physical property of the model body is similar to that of the human tissue, the simulation authenticity is improved, and organ movement control modes including fixed frequency input, collected patient frequency input and movement frequency predicted through an artificial intelligence algorithm are flexible and diversified. And guarantee is provided for dosimetry verification by shooting 4D CT and position error verification by means of a body surface optical positioning system.

The invention provides a chest and abdomen compression device, a compression system based on big data and a control method, which are used for assisting a doctor in compressing the chest or abdomen of a respiratory suppression patient, and the chest and abdomen compression device comprises a power supply device, a shell, a reciprocating motion mechanism, a compression block, a microprocessor and a driving device, the reciprocating motion mechanism comprises a first gear disc, a transmission rod, a sliding block and a sliding block channel, an outer gear is arranged on the outer edge of the first gear disc and meshed with the driving gear, a disc protruding shaft is arranged on one face of the first gear disc, and a transmission chain of reciprocating motion force comprises the driving gear, the first gear disc, the disc protruding shaft, the transmission rod, the sliding block and a pressing block. Finally, the sliding block and the pressing block are driven to reciprocate, diaphragm movement is stimulated, and the occurrence rate of hypoxemia of intravenous anesthesia patients is reduced. The vital signs of the patient can be monitored and analyzed in real time through the sign monitoring module, and whether the patient is subjected to respiratory suppression or not and whether pressing needs to be started and executed or not is automatically judged.

The utility model discloses adjustable chest and abdomen core muscle group fitness equipment which comprises an adjusting box, a screw rod is rotationally connected between the left side and the right side of an inner cavity of the adjusting box through a bearing, and one end of the screw rod penetrates through the adjusting box and is fixedly connected with a rotating handle. By arranging the adjusting box, the screw rod, the rotating handle, the rectangular plate, the driving plate, the limiting plate, the L-shaped plate, the positioning plate and the grip, the chest and abdomen core muscle group of a body builder can be exercised, meanwhile, by arranging the limiting plate, the moving distance of the L-shaped plate can be limited, the exercise intensity of the chest and abdomen core muscle group can be adjusted, and the exercise effect of the chest and abdomen core muscle group is improved. According to the chest and abdomen core muscle group fitness equipment, by arranging a spring, a buffer plate, a supporting rod and a limiting disc, the L-shaped plate can be buffered and protected when making contact with the limiting plate, by arranging the structure, the chest and abdomen core muscle group fitness equipment has the advantage that the chest and abdomen core muscle group fitness equipment has the adjusting function when used, and therefore the use requirements of exercisers can be met.

The utility model discloses a prone position bolster for a lying side after a spinal operation. A prone position bolster on the side lying in bed after a spinal operation comprises a leg bolster body capable of raising legs of a patient and a head and neck cushion body capable of supporting the head and the neck of the patient, a head supporting groove and a neck supporting groove are formed in the head and neck cushion body, ear pressure preventing holes are formed in the bottom of the head supporting groove, and ear pressure preventing holes are formed in the neck of the head supporting groove. A first connecting belt is arranged on the front side of the head and neck cushion, the front end of the first connecting belt is connected with a lateral prone position pillow capable of raising the chest and abdomen of a patient, an open groove is formed in the position, corresponding to the chest of the patient, of the lateral prone position pillow, and a chest pillow is detachably arranged in the open groove. The lateral prone position support can help a patient to keep a lateral prone position posture, and is beneficial to improving the comfort of the patient.

The invention relates to the technical field of first-aid devices, and discloses a child Helicke first-aid device which comprises a base, a first-aid device body and a second-aid device body. The back patting assembly is arranged on the vertical frame and constructed to be adjusted in a lifting mode along the vertical frame, and the back patting assembly comprises a driving assembly and a patting plate; the extrusion assembly is connected with the vertical frame through an arc-shaped arm, the arc-shaped arm is adjusted to ascend and descend on the vertical frame, the extrusion assembly comprises a force application part and an action part, the action part is fixed to the position, facing the thorax and abdomen of the patient, of the arc-shaped arm, and the force application part drives the action part to extrude the thorax and abdomen of the patient in a reciprocating mode. The technical scheme has the beneficial effects that the chest and abdomen of a patient can be extruded through the back patting assembly and the extruding assembly, and the back of the patient is patted. And the method is more in line with a new Hemricker first-aid operation guide. And the arc-shaped arm is adjusted to lift so as to adapt to people with different lifts, operation is easy and convenient, and more people can operate and use the device.

The invention provides a three-dimensional positioning auxiliary device for chest and abdomen CT and ultrasonic puncture. The three-dimensional positioning auxiliary device comprises a supporting assembly, an adjusting assembly is arranged on one side of the supporting assembly, a positioning assembly is arranged at the top end of the adjusting assembly, and the positioning assembly slides in the adjusting assembly; wherein the positioning assembly is used for receiving focus position data obtained through CT or ultrasonic scanning and accurately indicating the direction of a puncture needle according to the data and sensor information, the positioning assembly and the adjusting assembly work cooperatively, a puncture path can be accurately planned according to the focus data provided by CT and ultrasonic, and the puncture accuracy is improved. According to the utility model, the interferences of ribs and other visceral organs are effectively avoided, the puncture needle is guided to accurately reach the focus, and the puncture accuracy is greatly improved, so that a more accurate pathological tissue sample can be obtained, a more reliable basis is provided for disease diagnosis, and misdiagnosis or missed diagnosis caused by inaccurate puncture is avoided.

1. The name of the product of this design: Infant waist stool ventilation piece kit. 2. Purpose of the product of this design: used as a waist stool for infants and young children, Kit 1 is used for the front piece for ventilation of the chest and abdomen of infants and young children, and Kit 2 is used for the back piece for ventilation of the back of infants and young children and the chest and abdomen of adults. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: 3D image of Kit 1. 5. The product with this appearance design is a thin product, and the left view of Kit 1 is omitted; the product with this appearance design is a thin product, and the right view of Kit 1 is omitted; the product with this appearance design is a thin product, and the top view of Kit 1 is omitted; the product with this appearance design is a thin product, and the bottom view of Kit 1 is omitted; the product with this appearance design is a thin product, and the left view of Kit 2 is omitted; the product with this appearance design is a thin product, and the right view of Kit 2 is omitted; the product with this appearance design is a thin product, and the top view of Kit 2 is omitted; the product with this appearance design is a thin product, and the bottom view of Kit 2 is omitted.

The present invention discloses a respiratory rate measurement method and device. The implementation of the method includes: collecting pressure map data and determining the chest and abdomen regions in the pressure map data; determining a target unoccupied area according to a preset rule, and obtaining first pressure data of the chest and abdomen regions and second pressure data of the target unoccupied area; performing collaborative filtering processing on the first pressure data by using the second pressure data to obtain an adaptive filtering signal; performing band-pass filtering processing on the adaptive filtering signal to obtain a respiratory wave signal; extracting peak points from the respiratory wave signal to obtain peak intervals; and calculating a respiratory rate value based on the peak intervals. By extracting the positions of the chest and abdomen and using the pressure signals of the unoccupied area to perform collaborative filtering on the pressure signals of the positions of the chest and abdomen, the signal quality is improved to a certain extent, the accuracy of the respiratory rate is increased, and the respiratory rate measurement can be realized in complex scenarios such as multiple people and multiple people and multiple objects. The applicable scenarios are extensive and the accuracy is higher.

The present invention provides a pulmonary function trainer, which relates to the field of rehabilitation training. It includes a seat board. A vertical board is connected and arranged at the rear side of the top of the seat board. A slide bar A is fixedly connected to the bottom of the vertical board. A backrest is fixedly connected to the front side of the vertical board. Arc-shaped support plates are fixedly connected to the left and right sides of the front end of the backrest. It can make the horizontal rack drive the articulated plate and the arc-shaped push plate to translate forward, which can expand the distance between the arc-shaped push plate and the backrest. While elastically squeezing the chest and abdomen of the user, the distance is expanded, which is convenient for the user to inhale. When the user's arm deflects downward, it can drive the arc-shaped push plate to translate backward, which is convenient for squeezing the chest and abdomen of the user at the same time. When exhaling, the lower abdomen should be as inward as possible and the air should be slowly discharged. It can make the trainer's breathing synchronized with the arm movement, which is convenient for training the diaphragm of the trainer's abdominal breathing, and solves the problem that the existing tools are not convenient to adjust the angle for the adaptation detection of the PCI expansion slot and the memory card slot.

The invention relates to the field of respiratory monitoring, in particular to a respiratory segment positioning method and device under voice instruction guidance, equipment and a medium. A radar non-contact detection technology is adopted, a test signal is generated by capturing thoracic and abdominal respiratory movement, contact type air blowing operation is not needed, dependence on contact type acquisition equipment is abandoned, and the problem that the operation threshold is high is solved; secondly, testing actions are guided through voice instructions instead of guidance of professional medical staff, and the requirement for operation speciality is lowered through standardized instructions; then, the radar is flexible to install and adapts to various postures, and the limitation of professional medical scenes is broken through; and finally, automatically extracting the breathing segment and calculating the breathing index of the measured object without complicated manual intervention, thereby simplifying the process and reducing the equipment and use cost.

This application discloses a method and apparatus for acquiring human feature data. The method includes: using an ultra-wideband (UWB) radar array, the acquisition device performs real-time identification of a target human body within a signal-detectable area, and determines a three-dimensional upper body model for the identified target human body; based on the three-dimensional upper body model, the chest and abdomen region of the target human body is determined, and the chest and abdomen region is detected; based on the set of data points obtained from the detection, a contour model of the chest and abdomen region and monitoring control points in the contour model are determined; the monitoring control points include respiratory monitoring control points and / or heart rate monitoring control points; using the UWB radar array, the chest and abdomen region is detected in real time, and based on the coordinate changes of the detected monitoring control points, the respiratory rate and / or heart rate of the target human body are determined. Using this application can improve the comfort of the user being tested during human feature data acquisition.

The utility model relates to the technical field of medical treatment, and discloses an infant bedside radiography embracing type restraining device which comprises a restraining base used for covering the chest and the abdomen, limiting blocks used for limiting the waist are symmetrically distributed at the two ends of the lower side face of the restraining base, and the restraining base and the limiting blocks are of an integrated structure and are made of flexible materials. A first counterweight piece is arranged in the limiting block; restraining assemblies used for limiting hands and feet are arranged at the four corners of the restraining base and connected with the restraining base through flexible belts. The infant body positioning device has the advantages that the infant body can be positioned in an auxiliary mode, and the radiography quality is improved.

The application discloses a chest and abdominal cavity complex deformation full view reconstruction and respiration detection system and method, relates to the technical field of human deformation measurement, and comprises a binocular vision acquisition device, the binocular vision acquisition device is connected with a computer through a connecting line and carries out data transmission, an image processing module, a displacement and strain calculation module, a respiration parameter extraction module and a remote data interaction module are arranged on the computer; the binocular vision acquisition device is arranged on the front sides of the chest and abdomen of a user, and the user wears an elastic fabric speckle shirt on the upper body. The chest and abdominal cavity complex deformation full view reconstruction and respiration detection system and method have the advantages of non-contact, high precision and full cycle, and are suitable for various scenes such as clinical diagnosis, postoperative rehabilitation, home monitoring and vocal music training.

Presented herein is an imaging technique named nonstop gated cone-beam computer tomograph (CBCT), for guiding free-breathing respiratory gating radiotherapy of thoracic and abdominal cancer patients (e.g., lung, liver, pancreas). The nonstop gated CBCT technique reduces the data acquisition time to 1 minute and decreases the imaging dose by >40% while simultaneously retaining high quality images was developed. This is done by allowing the gantry to rotate continuously and having the kV x-ray beam on when the patient breathing signal is within the respiratory gate and the x-ray beam off when it is out of the respiratory gate. A machine learning model can be used to reconstruct high-quality CBCT images from the acquired data.

This application discloses a wound protection device, medical auxiliary system, and control method for the chest and abdomen. The isolation and protection device includes an outer restraint cover, an air supply layer, and an expansion and contraction layer. The expansion and contraction layer contains independently distributed airbags, each containing a first substrate and a locking mechanism including interference and transmission components. Under air pressure, the first substrate undergoes axial displacement, which is converted into the radial extension of the interference components. When one of the adjacent airbags is evacuated while the other is inflated or under slight negative pressure, the displacement of the first substrate drives the sidewall to bulge outward by a distance greater than a preset gap, thereby locking itself into the internal structure of the adjacent airbags. This application effectively solves the problem that existing chest and abdominal protective dressings are prone to wound tearing under external pressure by using cross-gap mechanical phase change linkage between the substrate and components inside the airbag based on different suction negative pressures. While being compatible with external high-frequency oscillation physiotherapy interventions, it precisely constructs a stable wound suspension isolation and protection zone.