293 results about "Exhalation" patented technology

The invention provides a lung expiration training system for nursing a patient outside a chest, which relates to the technical field of medical rehabilitation training and comprises a respiratory signal acquisition module, a main control and signal processing module, a feedback and excitation module and a data management and scheme customization module, the respiratory signal acquisition module is used for acquiring an instantaneous pressure difference signal in the expiration process of a patient in real time by utilizing a differential pressure type flow sensor; the main control and signal processing module converts the pressure difference signal into instantaneous flow, obtains an expiration flow-time curve, a primary expiration amount and expiration efficiency based on discrete sampling, smooth operation and integral calculation, and calculates an error sum of squares and a curve goodness of fit to form a comprehensive control amount; the feedback and excitation module provides visual, auditory or tactile feedback according to the comprehensive control quantity, and can present a gamification interface to guide the patient to adjust the breathing rhythm; the data management and scheme customization module is used for setting a personalized training scheme and recording training data, and the trend analysis unit generates a rehabilitation trend report based on historical indexes.

The invention relates to the technical field of auxiliary medical treatment, in particular to an oxygen generator on-demand pulse oxygen supply control method based on respiratory rhythm perception, and the method comprises the steps: obtaining a plurality of respiratory pressure sequences, and dividing the respiratory pressure sequences into an expiratory phase and an end-expiratory transition section; determining a signal confidence coefficient according to the performance of the expiratory phase and the end-expiratory transition section in the respiratory pressure sequence; a regularization item of physiological rationality constraint is introduced into the regression loss function, and time sequence smooth constraint is applied to a model cell state updating process to obtain an optimized respiratory rhythm prediction model; taking the three-dimensional feature vector as input data of a respiratory rhythm prediction model to obtain an end-expiratory stationary section duration ratio of a next respiratory cycle; and determining a pre-judgment window period from the beginning of inspiration according to the duration proportion of the end-expiratory stationary section of the next respiratory cycle, and controlling pulse oxygen supply of the oxygen generator by taking the pre-judgment window period as a pulse trigger countdown parameter of the oxygen generator, thereby realizing accurate synchronization of the oxygen supply action and the inspiration action.

This disclosure relates to systems and methods for monitoring sedated patients that are receiving supplemental oxygen flows. A method of monitoring a patient's breathing while sedated includes identifying an end expiratory pause in the patient's breathing pattern and obtaining a first respiratory signal corresponding to a nasal pressure of a patient. The method may also include delivering a pulse of high-flow oxygen during the end expiratory pause at a rate of about 30 liters-per-minute (L / min) and delivering the pulse of high-flow oxygen during the end expiratory pause for less than 0.5 seconds. The method may further include measuring a peak nasal pressure and a peak oxygen flow and synthesizing a second respiratory signal. The second respiratory signal may correspond to the peak nasal pressure and the peak oxygen flow, and may be normalized for the patient. The method may additionally include determining the patient's breathing pattern, rate, or frequency.

The present disclosure relates to a calm expiration phase, forced vital capacity determination and diagnosis method, system and dynamic X-ray machine, and relates to the technical field of calm expiration phase, forced vital capacity determination and diagnosis. The calm expiration phase determination method comprises: performing lung field segmentation on dynamic multiple X-ray two-dimensional chest images in the breathing process to obtain corresponding multiple X-ray two-dimensional lung field mask images; and determining the calm expiration phase in the breathing process according to multiple lung field mask areas of the multiple X-ray two-dimensional lung field mask images and lung field mask area change rates corresponding to the multiple lung field mask areas. The present disclosure can realize calm expiration phase, forced vital capacity determination and diagnosis.

The utility model discloses a breathing pipeline device capable of adjusting and releasing airway pressure, which comprises a breathing sputum excretion device body, a fourth connector, an air valve main body, an adjusting assembly and a sputum excretion assembly, and the air valve main body is used for blocking or opening an airflow channel in the fourth connector; the sputum excretion assembly is used for providing an upward opening moving stroke for the air valve assembly, one end of the sputum excretion assembly is installed on the breathing sputum excretion device body, and the other end of the sputum excretion assembly is installed on the top of the air valve body. The adjusting assembly is arranged on the periphery of the breathing sputum excretion device body and the periphery of the sputum excretion assembly in a sleeving mode. The distance between the breathing sputum excretion device body and the sputum excretion assembly is adjusted through the adjusting assembly, and then the pressing force of the sputum excretion assembly for pressing the air valve assembly is adjusted; therefore, the breathing intensity of the patient during breathing training can be adjusted, and the device is suitable for breathing rehabilitation training of various moderate and mild patients in the lung department and contributes to expectoration of sputum.

The utility model relates to an oscillating positive expiration pressure sputum excretion device which comprises a holding shell, a working cavity is formed in the holding shell, an air channel is fixedly installed above the holding shell, a blocking piece is fixedly installed in the air channel, an air inlet is formed in the position, corresponding to the front portion of the blocking piece, of the upper end face of the holding shell, and an air inlet pipe is fixedly installed below the air inlet. An air nozzle is fixedly installed on one side of the tail end of the air inlet pipe, an oscillation box is arranged at the top end of the air nozzle, and an oscillation piece is rotatably installed in the oscillation box. Through the design that the oscillation box is arranged in the working cavity and the oscillation piece is installed in the oscillation box, compared with a traditional oscillation structure with a single-ball blocking structure, the oscillation piece and a cavity separated, the oscillation structure is more stable; the second air outlet for adjusting the air pressure through the adjusting knob is matched with the design of the transparent air flow indicating tube, multi-gear adjustment and visualization of the air pressure are achieved, the water content in exhaled air is effectively reduced through the design that the water vapor filtering cotton is arranged in the blocking cavity, and the service life of the product is prolonged.

The invention relates to the technical field of medical instruments, and discloses a respiratory efficiency feedback-based chronic obstructive pulmonary disease home rehabilitation device which comprises a respiratory training rehabilitation device body, an extension tube is arranged at the front end of the respiratory training rehabilitation device body, and a respirator is fixedly connected to the end, away from the respiratory training rehabilitation device body, of the extension tube. A feedback assembly is arranged in the middle of the extension pipe, an adjusting assembly is arranged in the feedback assembly, a supplementing assembly is arranged on the side edge of the feedback assembly, the feedback assembly comprises a hollow box fixedly connected to the middle of the extension pipe, a center shaft movably penetrates through the upper portion of the hollow box, and air flow blades are distributed on the outer surface of the center shaft in an annular array mode. By arranging the feedback assembly and the middle of the extension tube, the feedback assembly can be driven to operate in the breathing process of a patient, the feedback effect is achieved through the moving track of the red tying cloth, the feedback situation changes along with the breathing rate of the patient, expiration and inspiration are fed back separately through the one-way bearing, and the feedback effect is more detailed.

The invention relates to the technical field of medical instruments, in particular to a respiration triggering method and system based on multi-signal fusion and a self-adaptive threshold value, specifically, a multi-signal fusion triggering scoring method is adopted, and inspiration and expiration phase state judgment is conducted in combination with net flow, pressure and derivatives of the net flow, the pressure and the derivatives of the net flow, the pressure and the derivatives of the pressure. The inspiration and expiration phase switching needs to meet triple conditions of a threshold value, a derivative and duration time; leakage estimation and baseline correction are carried out in an expiration stable section, and in addition, a confirmation mechanism and a non-response period are introduced, so that phase jitter is reduced; and meanwhile, the threshold value and the weight can be dynamically and adaptively updated along with the respiratory statistical characteristics, an anomaly detection and rollback strategy is executed, and the continuity and the safety of ventilation are guaranteed under the conditions of cough, swallowing or sensor failure. Furthermore, the system adopts a modular structure, so that embedded implementation and upgrading are facilitated.

Methods for increasing forced expiratory volume in one second (FEV1) in a patient with asthma are presented, comprising administering to the patient an effective amount of benralizumab or an antigen-binding fragment thereof.

Described herein is a respiratory care apparatus capable of performing multitude of therapy for secretion management and breath assistance therapy. The respiratory care apparatus comprises an electromechanical air router assembly (EARA) and an interfacing assembly. The EARA includes independent first and second pressure generating sources for assisted inhalation / insufflation and assisted exhalation / exsufflation process. The interfacing assembly includes a patient interface port and a patient interface tube. The interfacing assembly forms two pneumatically separate paths. The respiratory care apparatus is configured to generate alternate positive and negative pressure at the patient interface port for assisted inhalation / insufflation and assisted exhalation / exsufflation processes respectively. The assisted inhalation / insufflation and assisted exhalation / exsufflation processes are carried out independently through separate conduits / passages to reduce contamination and infection. Further, the respiratory care apparatus comprises a garment which oscillates due to alternate positive and negative pressure generation and provides therapy to the patient.

The application belongs to the technical field of medical apparatus and instruments, and particularly relates to a pressing type oxygen inhalation device for emergency treatment, which comprises an elastic air bag, an air inlet unit, an air outlet unit and an oxygen inhalation mask, the elastic air bag inhales oxygen through the air inlet unit, and the oxygen is supplied to a patient through the air outlet unit and the oxygen inhalation mask, and the device further comprises a fixing column coaxially arranged in the elastic air bag, wherein two movable rings are slidably arranged on the two sides of the fixing column in the elastic air bag, a plurality of elastic metal positioning pieces are arranged between the two movable rings, and the fixing column is provided with a driving mechanism for driving the two movable rings to move. The device can stably control the oxygen supply depth, avoid excessive oxygen supply or insufficient ventilation, intuitively display the exhalation state of the patient, optimize the pressing frequency, and quickly adjust the positioning parameters to meet the emergency treatment requirements.

This application relates to a continuous positive airway pressure (CPAP) device and a method for controlling ventilation pressure. The minimum operating pressure is determined by acquiring a preset treatment pressure and a target pressure drop. The device monitors the patient's respiratory phase transitions in real time and employs different pressure regulation strategies for the inspiratory and expiratory phases. During the inspiratory phase, the ventilation pressure is smoothly adjusted from the preset treatment pressure to the minimum operating pressure and maintained to reduce inspiratory effort. During the expiratory phase, the ventilation pressure is gradually increased from the minimum operating pressure to ensure that the ventilation pressure returns to the preset treatment pressure at the end of the expiratory phase, maintaining airway support and avoiding the risks of airway closure and central apnea. This application improves patient comfort during CPAP therapy, enhances treatment compliance, and simultaneously ensures airway support while reducing the risks of airway closure and central apnea.

A method for ventilating a patient includes providing pressure into a patient's airway over a period of time that includes a plurality of inhalation periods and a plurality of exhalation periods. The pressure is at an inspiratory positive airway pressure during the inhalation periods, and the pressure is at an expiratory positive airway pressure during the exhalation periods. The expiratory positive airway pressure less than the inspiratory positive airway pressure, and the expiratory positive airway pressure is configured to maximize lung compliance of the patient.

The invention discloses a respiratory training device for the department of cardiology. The invention relates to the technical field of biomedical engineering and medical instruments. Comprising a bag body 6 in which oxygen is stored and an interaction mask 1 which is communicated with the output end of the bag body 6 through a hose and interacts with a human body; during expiration, air can flow back into the bag body 6 through the one-way valve of the interactive mask 1 to form closed-loop circulation. The driving mechanism 3 performs periodic contraction-expansion motion on the capsule body 6 with a first linear degree of freedom; the adjusting assembly 4 is used for executing self-adaptive deformation adjustment on the bag body 6 with a plurality of second linear degrees of freedom; the annular array type linear actuator 403 realizes multidirectional angle adjustment through a spherical hinge, and is matched with the natural curvature of the bag body 6 in combination with the design of an arc-shaped contact surface, so that the device can adapt to patients with different body types (for example, the chest circumference difference is greater than 30cm) and various breathing modes (for example, the long expiration requirement of a POTS patient).

The application belongs to the technical field of dysphagia rehabilitation, and particularly relates to a cold stimulation device for dysphagia rehabilitation, which comprises a supporting column, a reciprocating electric telescopic rod coaxially and fixedly connected to one end of the supporting column, a semiconductor touch head fixedly connected to a telescopic end of the reciprocating electric telescopic rod, a biting seat fixedly connected to the supporting column, biting air bags fixedly and symmetrically connected to the biting seat, the biting air bags being communicated with the supporting column, and a detection tube fixedly connected to the biting seat. The oral cavity sealing mechanism automatically triggered by biting action can accurately detect the swallowing action according to the negative pressure of the oral cavity. After the effective swallowing action is detected, the stimulation can be paused through a delay start switch, the next round of training can be automatically started after the rest, and the timing and rhythm of each stimulation are ensured to be consistent with the physiological response. The normal exhalation can be realized while the oral cavity sealing space is formed, and the breathing safety is ensured.

FIELD: cardiology.SUBSTANCE: used as a component of the first stage of cardiac rehabilitation in patients with chronic heart failure (CHF), as well as an auxiliary component at all stages of cardiac rehabilitation. Warm-up exercises are performed – stretching exercises and movements in the joints of the upper body, followed by a basic set of breathing exercises lasting from 15 to 30 minutes, at least once a day, at least 5 days a week, for at least 8 weeks. At the first stage, the main set of exercises includes four exercises performed in sequence: abdominal breathing, chest breathing, breathing involving the shoulder muscles, breathing slowing. The first three exercises are performed for 5–10 breathing cycles with an interval between exercises of at least 1 minute, the fourth exercise contains 5–15 cycles, where each cycle includes an inhalation through the first nostril, followed by an exhalation and inhalation through the second nostril, then an exhalation through the first nostril . In the second and subsequent stages, the main set of exercises includes two exercises performed sequentially: an exercise for full breathing and an exercise for slowing down breathing. The full breathing exercise involves sequentially performing abdominal breathing, chest breathing, and breathing with the involvement of the shoulder muscles throughout one inhalation. The exhalation is performed in reverse order. The number of cycles of the full breathing exercise at the second stage is 15–20. The duration of each stage is at least 2 weeks, where at each subsequent stage, starting from the second one, the duration of the exercises performed in the main complex is increased by increasing the number of exercise cycles. Also the duration of inhalation and exhalation is increased when performing exercises to slow down breathing. The method improves the biomechanics of breathing: increases the depth of breathing, reduces the frequency of respiratory movements, increases the efficiency of breathing and reduces the activity of the inspiratory metaboreflex.EFFECT: exercise tolerance in patients with CHF improves.3 cl, 6 dwg, 3 ex

The utility model provides a double-cavity breathing circuit, which relates to the technical field of medical instruments and comprises an inspiration inner tube and an expiration outer tube which are coaxially mounted, a connecting mechanism is inserted and fixed at the front ends of the inspiration inner tube and the expiration outer tube, and the connecting mechanism comprises a mounting seat, a driving sleeve and a reset torsion spring. An inner ring sleeve and an outer ring sleeve are concentrically arranged on the upper side of the mounting seat, a plurality of fixing rib plates are integrally formed between the inner ring sleeve and the outer ring sleeve, the driving sleeve comprises a closed sleeve, a connecting ring and a plurality of inclined fan blades, the reset torsion spring is connected between the outer ring sleeve and the connecting ring, a plurality of vent holes are formed in the circumference of the inner ring sleeve, and the inner ring sleeve is provided with a plurality of air holes. Deflation holes are formed in the positions, corresponding to the height of the vent holes, of the closed sleeve at intervals, and the inner side of the inspiration inner pipe communicates with the expiration outer pipe through the vent holes and the deflation holes. According to the utility model, negative pressure suction is generated in the expiration outer pipe through airflow generated by expiration, so that CO2 waste gas is quickly exhausted.

An exhalation valve for a respiratory device comprises a valve housing (12) with a fluid line (20, 22) and with a valve diaphragm (14) held by a holding portion (42) of the valve housing (12), wherein the fluid line (20, 22) has a first line portion (20) with a valve seat (26) and a second line portion (22) which differs from the first line portion (20), a valve body (36) formed with the involvement of the valve diaphragm (14) rests on the valve seat (26) in a closed position of the diaphragm valve (10) and interrupts a flow path between the first line portion (20) and the second line portion (22), the valve body (36) of the valve diaphragm (14) can be lifted from the valve seat (26) along an extended imaginary virtual lifting path which serves as a virtual reference path (Z), and at least one region of the valve housing (12) is designed as a thermal deformation region (78, 80, 82, 84) made of a polymer which has a dimensional stability temperature of less than 115°C, measured according to ASTM D648 at a test load of 66 psi, and / or a dimensional stability temperature of less than 100°C, measured according to ASTM D648 at a test load of 264 psi, the thermal deformation region (78, 80, 82, 84) being a shell-shaped region with a wall thickness of less than 0.9 mm.

The invention belongs to the technical field of vocal music training, and provides a singing expiration strength stability training system for breath flow control, comprising: a hardware sensing module for collecting airflow dynamic data, respiratory muscle group electrophysiological data and respiratory kinematics data of a user; the data processing control center is used for receiving and processing the airflow dynamic data, the respiratory muscle group electrophysiological data and the respiratory kinematics data to obtain a processing result; the multi-mode feedback module outputs real-time feedback to the user through visual, auditory and tactile multiple channels based on the processing result; according to the method, heterogeneous data of airflow dynamics, electromyography and respiratory kinematics are synchronously collected and fused, song audios are analyzed in combination with an artificial intelligence algorithm to generate a scene-based target curve, and a personalized training baseline is established based on accurate decision and multi-modal sensory collaborative feedback of a fuzzy logic algorithm; the efficient, accurate and personalized improvement of the stability of the exhaling force of singing is realized.

The application provides a recovery training device for chronic obstructive pulmonary disease, and belongs to the technical field of recovery training for chronic obstructive pulmonary disease. The recovery training device for chronic obstructive pulmonary disease comprises a base, a training mechanism is arranged on the top of the base, the training mechanism comprises an installation plate and a first training ball, the installation plate is fixedly arranged on the top of the base, the installation plate is provided with two, the top of each of the two installation plates is fixedly provided with a first training cylinder and a second training cylinder. The training mechanism is arranged, when performing exhalation training, the user blows, the gas in the blowing pipe lifts the first training ball upward, and when the first training ball reaches the top of the first training cylinder, the user stops blowing, and the first training ball falls due to gravity; when performing inhalation training, the user inhales, a negative pressure is generated in the second training cylinder at this time, the second training ball moves upward, so that the user can conveniently perform inhalation and blowing training.

The invention relates to the technical field of medical detection, in particular to a swallowing aspiration risk assessment method and device based on multi-modal signal fusion, and the method comprises a swallowing event detection channel which is used for collecting and processing a throat electromyographic signal and a tongue bone movement signal, and generating a discrete swallowing event mark with an accurate timestamp through signal fusion; and a respiratory phase monitoring channel. The method has the advantages that the swallowing and breathing time sequence is coordinated, the risk of aspiration is accurately early warned, and multi-modal signal fusion is improved; according to the method, 'swallowing-breathing time sequence coordination 'is taken as an evaluation core, a swallowing event and a breathing phase are subjected to dynamic mapping and quantitative integration on a unified high-precision time coordinate axis for the first time, and the accurate correlation between a swallowing moment and an expiration / inspiration phase is established; according to the invention, the essential criterion of the aspiration risk, namely whether swallowing is completed in the physiologic safety window, is constructed, and normal form transformation from whether swallowing is completed to whether swallowing is safe is realized.

The present invention relates to a respiratory gas supply device comprising at least one respiratory gas line for guiding a respiratory gas mixture. The respiratory gas line comprises at least one outlet from which the respiratory gas mixture can be discharged at least partially and at least temporarily. The respiratory gas line comprises an inspiratory branch tube configured to guide respiratory gas to a connection for a patient interface. The respiratory gas line comprises an expiratory branch tube configured to guide respiratory gas between the connection for a patient interface and the outlet. The device is characterized in that the respiratory gas line comprises at least one shut-off valve configured and designed to establish at least temporarily a connection for guiding respiratory gas from the expiratory branch tube to the inspiratory branch tube.

This invention discloses an intelligent mask sealing detection system and method based on active biomimetic fit adjustment, belonging to the field of intelligent protective equipment detection technology. The system includes the following steps: collecting breathing change information and fit contact feedback information between the mask and face throughout the entire mask-wearing process, and organizing this information according to the temporal relationship between the inhalation and exhalation phases to generate a breathing fit rhythm sequence reflecting the correspondence between breathing fluctuations and fit changes. This invention uses the breathing fit rhythm as its core to dynamically analyze the fit state, identifying short-term air leakage phenomena where the time deviation of the fit response during breathing rhythm switching is synchronized with the inhalation peak, thus avoiding misjudgments of sealing. Furthermore, based on the leakage distribution pattern, it pre-adjusts the fit adjustment and sampling sequence to ensure that the detection covers key change areas, improving the reliability of mask protection under complex breathing conditions.

The present application relates to the technical field of respiratory training device, disclose a kind of respiratory training device and its using method, wherein, respiratory training device includes training device body, training device body is divided into multiple-chamber structure by setting multiple partitions and is laid out by cooperating with the layout of through port, wherein, first through port and fifth through port are all provided with airflow sensor, first air resistance component is arranged in third chamber, second air resistance component is arranged in eighth chamber, first air resistance component is used to control exhalation resistance, second air resistance component is used to control inhalation resistance, switch group for controlling the open-close state of fourth through port and fifth through port is arranged in first chamber, switch component is used to switch exhalation and inhalation training path;The present application solves the problem that the existing respiratory training device is single in function and lacks data feedback, realizes multi-mode resistance adjustable training, and can provide relevant training data for users and doctors, with the advantages of comprehensive training function and good training effect.

The invention discloses an overflow preventer, comprising: a working chamber which is hollow, and the upper end and the lower end of which are provided with connecting ports for being vertically connected to an expiration and exhaust pipeline; the floater is located in the working chamber, can float in liquid entering the working chamber and is used for blocking a connecting opening in the upper portion of the working chamber after floating; and the bracket is arranged in the working chamber, is positioned below the floater and is used for supporting the falling floater. The overflow preventer is mounted on the exhalation and exhaust pipeline of the closed container, and liquid can be prevented from overflowing and leaking out through the exhalation and exhaust pipeline through mechanical movement of the floater; the device does not need external power and is safe and reliable in operation and easy to maintain.

The invention discloses a lung function data prediction method and related equipment. The method comprises the following steps: firstly, acquiring expiratory flow velocity data of a person to be detected, determining the highest point of flow velocity acceleration by calculating the acceleration of each flow velocity sampling point, and intercepting explosion data segments of preset time windows before and after the point; and matching a lung function data prediction sub-model corresponding to the to-be-detected person. The sub-model is obtained by training a plurality of groups of expiratory flow velocity sample data. And finally, inputting the outbreak data segment into the sub-model, and outputting the expiratory flow rate data meeting the quality control standard and predicted lung function data of lung function parameters. The outbreak data segment prediction sub-model is intercepted for prediction, and the to-be-detected person does not need to complete acquisition of complete expiratory flow velocity data meeting the quality control standard.

An abdominal pressure exsufflation belt is disclosed. An example of the abdominal pressure exsufflation belt includes an abdominal belt configured to be worn by a person about their abdomen. The exsufflation belt also includes a pouch of the abdominal belt. The exsufflation belt also includes a bladder in the pouch. The exsufflation belt also includes tubing connected between the bladder and an external ventilator to enable air flow from the external ventilator to expand the bladder and press against the abdomen of the person wearing the abdominal belt. Expansion of the bladder delivers a force to the abdomen resulting in expiration as the external ventilator inflates the bladder, followed in sequence by passive inspiration by the person wearing the abdominal belt as the bladder deflates.

The invention discloses an ultrasonic self-adaptive scanning method and system for EIT dynamic path planning, and belongs to the technical field of medical imaging. Reconstructing an impedance distribution image in real time based on EIT and detecting an abnormal region; the coordinates of the abnormal area are mapped to an ultrasonic coordinate system, and breathing phase compensation is carried out; planning an ultrasonic beam scanning path according to clinical constraint conditions; controlling the ultrasonic beam to scan along the planned path; performing image analysis on the scanning area; and updating system parameters according to an analysis result. According to the method, abnormal coordinates detected by EIT are accurately converted into an ultrasonic beam deflection angle, clinical constraint path planning of a high-cost area of a rib shielding area and breathing phase dynamic compensation taking end expiratory as a benchmark are combined, so that the system realizes full-closed-loop control from abnormal sensing, path planning to beam execution, and the accuracy of the system is improved. The problems of scanning failure caused by rib shielding and coordinate drifting caused by respiratory movement in clinic are effectively solved, and the reliability of dynamic monitoring of the thoracic cavity is remarkably improved.

The application discloses a novel mechanical breathing valve and relates to the technical field of breathing valves, which comprises a breathing valve body, a partition plate arranged in the middle of the breathing valve body, wherein the partition plate divides the breathing valve body into an upper cavity and a lower cavity, two exhalation holes and inhalation holes for connecting the upper cavity and the lower cavity are arranged on the partition plate, a pressure valve assembly is arranged on the upper side of the partition plate and close to the exhalation holes, a vacuum valve assembly is arranged at the lower end of the partition plate and close to the inhalation holes, and a connection control mechanism for controlling the staggered opening and closing of the exhalation holes and the inhalation holes is arranged on the partition plate. The pressure of the oil tank is ensured to meet the requirements under the pressure balance of the vacuum valve assembly and the pressure valve assembly. When the novel mechanical breathing valve is installed on a large tank, the pressure valve assembly is opened when the pressure in the tank is higher than the safe pressure, and the vacuum valve assembly is opened when the pressure in the tank is lower than the safe pressure, so that the safe operation of the large tank is ensured.

The invention relates to the technical field of medical instruments, in particular to clinical medicine auxiliary oxygen inhalation equipment with a protective structure, which comprises an oxygen mask, a control unit is arranged on the outer wall of the oxygen mask, and an air supply pipe connected with oxygen supply equipment is mounted on the outer wall of the oxygen mask. Through the arranged detection assembly, when a patient exhales, the thoracic cavity is shrunk, a strain gauge is compressed, an electric push rod drives a piston to move downwards and stretch an air bag, and part of air exhaled into the oxygen mask by the patient enters the air bag through a second one-way valve, so that the air pressure and the air amount in the oxygen mask are reduced, and the situation that the patient inspires next time is avoided; when the patient inhales, the piston moves upwards to compress the air bag, the exhaled air is exhausted, and the process is repeated, so that the breathing of the patient is synchronized, the exhaled air of the patient is sucked and exhausted, and the situation that the breathing of the patient is confronted in the prior art is avoided.