377 results about "Breathing system" patented technology

The invention relates to the technical field of medical diagnosis, and discloses a blood oxygen monitoring system fused with sleep rhythm modeling, which comprises the following steps: identifying a sleep stage conversion moment through a photoelectric volume pulse wave signal, detecting a blood oxygen saturation valley value in a window after conversion, and calculating response lag duration; according to the method, the physiological rhythm is converted into a natural probe for the compensatory ability of the respiratory system, dual diagnosis of sleep staging and respiratory function is realized through a single-path signal, and meanwhile, body movement interference is converted into an observation window for the respiratory stress recovery ability. The diagnosis reliability in a home monitoring scene is remarkably improved, the system completes core analysis at an edge node, and a respiratory function evaluation report which can be directly used for clinical decision making is output.

The invention relates to a neonatal respiratory distress risk assessment construction method, which comprises the following steps of: implementing non-intrusive micro-disturbance operation on a neonatal, and detecting respiratory rhythm phase drift, respiratory driving force low-frequency suppression and physiological tremor window change under disturbance so as to identify a pre-instability signal regulated and controlled by a respiratory system; collecting nerve and respiration feedback path data, analyzing the time difference between respiration instruction conduction and actual respiration starting, and identifying an abnormal decoupling phenomenon; based on multiple times of perturbation induction and feedback acquisition results, continuously monitoring the micro-adaptive recovery capability of the respiratory system of the newborn, and identifying the hidden fatigue trend of the respiratory system by judging progressive extension of respiratory frequency recovery time and gradual upward movement of respiratory power consumption; the respiratory redundancy regulation capability in the stress regulation process is monitored, premature intervention and repeated activation of an auxiliary breathing mode or a respiratory muscle group are judged, and the redundancy regulation critical compression phenomenon of a respiratory regulation system is analyzed to complete evaluation construction of the neonatal respiratory distress risk.

The invention relates to a medical device for evaluating physiological parameters of a respiratory system, and the device comprises a sampling device which is used for collecting detected exhaled gas after a rising inflection point of carbon dioxide; the gas sensor comprises a nitric oxide sensor and a carbon dioxide sensor; the processor is used for receiving the gas signal generated by the gas sensor; the processor is configured to establish a linear expression for calculating a risk parameter R according to the detected carbon dioxide concentration and nitric oxide concentration; the linear expression of the risk parameter R is shown in the specification; wherein the parameter is set as a constant; the parameter is nitric oxide concentration; the parameter is carbon dioxide concentration; and the parameter is a nitric oxide dynamic change rate function. Compared with the prior art, the method provided by the invention provides a more comprehensive evaluation capability for airway inflammation and abnormal ventilation.

The invention particularly relates to a respiratory disease diagnosis device and method, and the device comprises a respiratory sound signal collection unit which is used for obtaining a current respiratory sound signal; the breathing sound signal preprocessing unit is used for performing segmentation processing and denoising processing on the current breathing sound signal to obtain a preprocessed breathing sound signal; the feature extraction unit is used for extracting multi-modal features of the preprocessed breath sound signals; and the detection unit is used for inputting the multi-modal features into a preset deep learning network model to obtain a respiratory system disease detection result. Therefore, through multi-modal feature extraction, dynamic fusion and an efficient classification strategy, the problems of relatively low feature identification degree, relatively low disease classification accuracy and the like in the process of researching disease diagnosis based on the breath sound signals in related technologies are solved, and the detection performance of chronic respiratory system diseases based on the breath sound signals is remarkably improved.

The invention relates to the technical field of data analysis, can be applied to business system platforms of financial science and technology, medical treatment and health and the like, and discloses a human body state characteristic value analysis method, device and equipment and a medium. Performing system state analysis on an endocrine system, a circulatory system and a respiratory system of the user according to the physical examination data to obtain a system state characteristic value set, constructing a physiological index vector and a disease course characteristic vector according to the physical examination data, and constructing a complication incidence matrix according to case data; performing complication association analysis on the user according to the physiological index vector, the disease course feature vector and the complication association matrix to obtain a complication feature value, analyzing a criticality feature value of the user according to a system state feature value set and the complication feature value to obtain a hazard feature value set, and performing weighted summation on the hazard feature value set to obtain a complication feature value set; and obtaining a human body state characteristic value. And the accuracy of human body state characteristic value analysis is improved.

The invention relates to the field of intelligent medical treatment, in particular to a percutaneous lung channel acupoint electrical stimulation optimization system based on artificial intelligence, which comprises a multi-source data acquisition module (M1), a dynamic modeling module (M2) and a self-adaptive electrical stimulation module (M3). M1, collecting lung channel acupoint skin impedance, infrared thermal imaging, respiratory rhythm and cough frequency data in real time, and generating multi-source fusion features through space-time alignment; m2, based on a deep learning model, combining with a preset database to dynamically generate an electrical stimulation parameter combination, and ensuring parameter safety through impedance calibration and constraint optimization; and M3, adjusting the stimulation intensity according to the parameters, and setting an impedance threshold to trigger power-off protection. The traditional Chinese medicine meridian theory and the AI algorithm are fused, accurate acupoint positioning, personalized electrical stimulation and dynamic safety regulation are achieved, and the respiratory system disease treatment effect is improved.

The present invention discloses a portable respiratory system including a housing, a divider, a flow sensor, an elastic member, a rigid member, a blower and a flow limiter. By configuring the divider in the housing, the system is partitioned into an upper chamber and a lower chamber, wherein the flow sensor is located in the upper chamber and the elastic member is located in the lower chamber. The rigid member is fixed in the lower chamber, and defines an air inlet flow channel, a lateral flow channel, a transmission flow channel, and an air outlet flow channel. The blower is disposed in the elastic member and is operable to receive an airflow from the transmission flow channel and generate a positive pressure airflow. The flow limiter includes multiple pipes and is located in the lateral flow channel.

According to the mode switching method, the controller, the airway clearance equipment, the storage medium and the program product provided by the embodiment of the invention, the oscillation airflow under different oscillation frequencies is output after operation is performed for the preset duration in the airway oscillation mode or the mechanical inhalation and exhalation mode, and the oscillation airflow under different oscillation frequencies is output for any oscillation frequency. The method comprises the following steps: acquiring response information of a user to oscillation airflow at oscillation frequencies, determining an impedance parameter of the user according to the response information at each oscillation frequency, determining an operation mode at the next moment according to the impedance parameter, and executing the operation mode, according to the method, the response information of the user under the oscillation airflow is obtained to determine the impedance parameter representing the blocking condition of the respiratory system of the user, so that the adopted airway clearance mode is automatically adjusted according to the real-time breathing state of the user, and the sputum discharge effect is improved.

The invention provides a ventilation system of a supercharged engine. The first passage communicates the downstream intake part with the crankcase in order to ventilate the crankcase. A second passage communicates the upstream intake portion with the crankcase. The oil separator is provided in the second passage. A third passage communicates the downstream intake portion with the oil separator. The one-way valve restricts the flow of gas through the third passage from the oil separator toward the downstream intake portion.

The application provides a guide and breathing system for a bronchofibroscope, which comprises a cover body used for covering a throat and forming a closed cover cavity communicating with a trachea in use, and a pipeline structure fixedly connected with the cover body and comprising an endoscope pipeline and a ventilation pipeline which are independent of each other and communicate with the cover cavity, and a drainage pipeline arranged to pass through the inside of the cover body but not communicate with the cover cavity, so as to communicate with an esophagus through a drainage outlet on the cover body in use. When the guide and breathing system is used, the reflux of secretions of a patient during an endoscope operation can be disposed through the independent drainage pipeline, and the bronchofibroscope only occupies part of the space in the laryngeal mask channel in the case of the endoscope operation, so that the patient can inhale sufficient oxygen, and the safety of the patient during the operation of the bronchofibroscope is ensured.

The invention relates to a breathing system and a breathing method for artificial respiration of a patient. The invention further relates to a control assembly and a control method for controlling a breathing assembly belonging to a breathing system. The anesthetic meter member (38) provides an anesthetic gas mixture (Ng) having a predetermined theoretical concentration (conreq) of the anesthetic (Nm). The respirator (12) delivers a breathable gas mixture with an anesthetic gas mixture (Ng) to the patient-side coupling unit. The setpoint concentration (conreq) is specified in such a way that the setpoint concentration is at most equal to the calculated upper concentration limit (conmax). The higher the temperature in the anesthetic meter member (38), in the ventilator (12) and / or in the ambient environment, the higher the concentration upper limit (conmax). The present invention reduces the risk of anesthetic (Nm) coagulation.

The invention provides a cardiac postoperative respiratory function monitoring system and method. The method comprises the steps that photoelectric volume pulse wave signals of a patient during cardiac postoperative breathing are collected through an intelligent optical sensor; extracting a heart rate variability signal of the patient, and determining a quantitative index of respiratory sinus arrhythmia of the patient through the heart rate variability signal; determining the arterial pressure variability of the patient according to the arterial pressure waveform, and fusing the arterial pressure variability and the quantitative index of the respiratory sinus arrhythmia to obtain the cardiopulmonary coupling strength; according to the cardiopulmonary coupling strength and the shallow and fast breathing index of the patient, combining a pre-trained failure prediction model during breathing machine withdrawal, outputting a failure risk value during machine withdrawal of the patient; and outputting a machine withdrawal decision support report of the patient according to the failure risk value and a preset individualized early warning threshold value. According to the scheme, the cardiac postoperative withdrawal risk can be evaluated based on the dynamic cooperation mechanism between the cardiovascular system and the respiratory system.

A system for measuring cardiovascular data includes an elongate member having a channel, a first expandable member carried by the elongate member and movable between a collapsed state and an expanded state by adjustment initiated externally of a subject, a first sensor disposed on a surface of the elongate member, second and third sensors disposed on a surface of the first expandable, a first optical sensor located at a first location in relation to the distal end of the elongate member and configured for obtaining photoplethysmographic data, and wherein the first expandable member in its expanded state is configured to interface with the subject's larynx for delivery of at least oxygen gas into the respiratory system of the subject, and the second and third sensors are configured to contact tissue in proximity to the larynx when the first expandable member is in its expanded state.

The invention belongs to the technical field of anaesthesia machines, and relates to an automatic target control method for the concentration of end-expiratory anesthetic gas of an anaesthesia machine and the anaesthesia machine. Calculating the deviation between the concentration of the end-expiratory anesthetic gas exhaled in the current respiratory cycle and a gas concentration set value; when the deviation and / or the change amount of the end-expiratory anesthetic gas concentration is larger than the threshold value, the flow of fresh gas used for flushing the anesthetic respiratory system is increased, and the anesthetic gas concentration of the fresh gas is adjusted till the deviation and the change amount of the end-expiratory anesthetic gas concentration are smaller than the threshold value; calculating predicted values of the concentration of the end-expiratory anesthetic gas in a plurality of future respiratory cycles; an anesthetic gas concentration optimization model is constructed and solved to obtain the optimal inhaled anesthetic gas concentration variation of each future respiratory cycle, so that the target flow of the fresh gas of each future respiratory cycle is calculated to control the conveying parameters of the fresh gas, and the final-expiratory anesthetic gas concentration is taken as an adjusting target to adjust the flow rate of the fresh gas. And the concentration of the end-expiratory anesthetic gas is effectively controlled through real-time feedback, dynamic prediction and adjustment.

The utility model relates to the technical field of grinding equipment, in particular to a hardware lock machining and grinding device which is characterized in that a rotating shaft is rotatably arranged in the middle of a box body, a grinding block is arranged at the bottom end of the rotating shaft, a driven gear located in the box body is arranged at the top end of the rotating shaft, and a first motor is arranged on one side of the box body; through the arrangement of the dust collection equipment and the filter cylinder, dust impurities generated in the grinding process can be effectively collected and filtered, floating of dust in air is reduced, the risk that workers inhale dust is reduced, the respiratory system health of the workers is protected, and the working efficiency is improved. And according to the grinding requirement of the hardware lockset, a second motor is started, a positioning shaft is made to rotate, a grinding block is adjusted to a proper grinding angle, the hardware lockset workpiece can be conveniently and continuously ground, and the applicability is high.

A respiratory system comprises a dual outlet blower. One of a first and a second outlet of the blower provides a flow of gases to one of a pair of nasal outlets of a nasal interface and the other one of the first and second outlets provides a flow of gases to the other one of the pair of nasal outlets of the nasal interface. In an alternative embodiment, one of the first and second outlets provides a flow of gases to a nasal outlet of an oro-nasal interface and the other one of the first and second outlets provides a flow of gases to an oral outlet of the oro-nasal interface.

The utility model discloses a ferro-silicon alloy screening and classifying device, which belongs to the technical field of ferro-silicon alloy processing equipment and comprises a screening box, a screening component for sorting ferro-silicon alloy, a dust absorption component for absorbing and transferring dust generated in the sorting process and a purification component for purifying dust gas, the dust collection assembly is arranged on one side of the screening box, the purification assembly is arranged on the dust collection assembly, the screening assembly is arranged in the screening box, a connecting assembly is arranged between the screening box and the screening assembly, a sealing assembly is arranged on the purification assembly, and an inclined plate is fixedly arranged on the inner bottom wall of the screening box; dust gas in the screening box is absorbed and transferred under the action of the dust absorption assembly, and the dust gas is purified under the action of the purification assembly, so that the dust content in the air is reduced, and the situation that a respiratory system and the like of an operator are possibly damaged and occupational diseases such as pneumoconiosis are caused by long-term inhalation of ferrosilicon alloy dust is avoided.

The utility model discloses a closed circulating breathing diving outfit capable of underwater communication, which comprises a front chest part and a back part, shoulder straps are arranged between the front chest part and the back part, and a storage assembly is arranged at the outer end of the front chest part and is used for facilitating storage and wearing of the outfit and placement of a communication module; the breathing system is arranged on the outer side of the back, and the breathing system is used for achieving internal circulation operation of breathing and controlling the oxygen content of breathing gas. The utility model belongs to the technical field of diving devices, and particularly relates to a closed type circulating breathing diving device capable of achieving underwater communication.

The application discloses a kind of big depth manned submersible emergency breathing system, it is related to diving equipment field, including high-pressure oxygen cylinder, the high-pressure oxygen cylinder is connected with first high-pressure valve body assembly by air pipe, the second sound filter includes sound filter main body, air inlet connecting pipe, the outside of the air inlet connecting pipe is provided with the mounting mechanism for the first sound filter and air pipe connection;The threaded sleeve is distributed with the positioning mechanism for limiting the threaded sleeve.The application is positioned by setting positioning mechanism, by the threaded sleeve is screwed to air pipe and air inlet connecting pipe, air outlet connecting pipe between, at this time, the threaded sleeve can be limited by inserting second positioning pin into annular clamping groove, to increase the stability of air pipe and air inlet connecting pipe, air outlet connecting pipe between connection, then can be made L-shaped connecting rod, threaded sleeve lose positioning simultaneously by connecting mechanism, to provide the convenience for subsequent disassembly, replacement of equipment.

A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.

The invention relates to medicine and can be used for overcoming stuttering by developing the rhythmic component of speech. Exercises are performed on a step-by-step basis. In a first step, exercises are performed for the muscles of the respiratory, phonatory and articulatory systems. In a second step, an individual non-speech rhythm is cultivated. In a third step, a sense of rhythm is developed. In a fourth step, a poetic speech rhythm is cultivated. In a fifth step, a prosaic speech rhythm is cultivated. In a sixth step, narrative and interrogative intonations are cultivated. In a seventh step, rhythmic processes are trained to become automatic in independent speech. The method makes it possible to overcome psychogenic and neurogenic stuttering, without the use of medication or the risk of relapse, and is suitable for all age groups.

A respiratory system with a flow generator can provide bubble CPAP therapy by controlling a pressure of a flow of gas delivered to a patient. A controller of the respiratory system can control a motor speed of its flow generator in order to control the pressure of the flow of gas. The controller can also detect the presence of bubbling and / or possible leaks in a gas path of the system. The respiratory system can include a high flow respiratory system.

The utility model discloses a bionic negative oxygen ion generating device which comprises a mounting shell, a negative oxygen ion generator, a negative oxygen ion generator, a negative oxygen ion generator, a negative oxygen ion generator, a negative oxygen ion generator and a negative oxygen ion generator, and is characterized in that a fresh air inlet is formed in one side of the lower part of the mounting shell; a fresh air primary filter; a heat exchange core; a high efficiency filter; a fresh air fan; an exhaust primary filter; an exhaust motor; a negative ion generator module; a sensor module; a PTC heater; and a controller. The negative ion air purifier can release high-purity negative ions from the air purification level, actively purify air, settle pollutants such as dust and smoke, remove peculiar smell, sterilize and disinfect, effectively improve air quality, generate negative ions close to the nature in the health aspect, promote metabolism of a human body, enhance immunity, improve the functions of a respiratory system and a nervous system, and improve the health of the human body. The symptoms of respiratory diseases and mental stress are relieved.

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

This application provides a liquid air supply system for breathing air, comprising: a liquid air storage tank, a high-pressure vaporization pump, a high-pressure vaporizer, a nitrogen input module, a buffer mixing module, an oxygen content detection module, and a control terminal; the high-pressure vaporization pump has a liquid inlet and a liquid outlet; the buffer mixing module has an air inlet and an air outlet; the liquid inlet of the high-pressure vaporization pump is connected to the liquid air storage tank, and the liquid outlet is connected to the high-pressure vaporizer; both the high-pressure vaporizer and the nitrogen input module are connected to the air inlet of the buffer mixing module, and the air outlet of the buffer mixing module is used to connect to the main gas supply pipe; the gas detection module detects the input gas data and output gas data of the buffer mixing module, and the control terminal controls the amount of nitrogen input from the nitrogen input module to the buffer mixing module based on the input gas data and the output gas data, enabling the safe and long-term output of air with the required oxygen content.

Ventilation methods and devices are described. The methods and devices can be used for treating respiratory diseases such as adult respiratory distress syndrome (ARDS). Embedded control software managing various functionalities of the disclosed ventilators is also presented.

The utility model discloses a multi-mode switchable sand blasting device which comprises a connecting pipe, the connecting pipe is installed on the side face of a protection box through an installation structure, the installation structure is composed of a connecting groove, an electric telescopic rod, a material storage box air suction cover, a filter box and an air suction pump in a combined mode, and the connecting pipe is arranged on the side face of the protection box. The connecting pipe penetrates through the side face of the protection box. A collecting mechanism used for sucking air is arranged on the side face of the connecting pipe. According to the multi-mode switchable sand blasting device, the connecting plate is made to move back and forth in the connecting groove through the connecting block, sand blasting can be conveniently conducted on metal parts of different shapes, when sand blasting waste does not need to be collected, the baffle is opened, the waste can be discharged out of the protection box, when the waste needs to be recycled, the suction pump is started, and the waste can be recycled into the storage box; multiple modes can be switched conveniently, waste gas can be filtered through a filter screen, harmful substances can be prevented from being inhaled into the respiratory system of a worker, and the protection effect is achieved.

This invention discloses a multimodal respiratory disease-related data acquisition system and method. The data acquisition system includes a disposable oral-nasal breathing interface, an oral-nasal breath sound acquisition module, a bidirectional flow / differential pressure sensing module, a temperature and humidity auxiliary acquisition module, a chest and back multi-channel auscultation module, a channel auscultation front end, a trimodal respiratory data acquisition box, a mobile terminal annotation module, a clinical label association module, and a local storage module. The data acquisition method is as follows: Step 1, prepare the oral-nasal breathing interface and acoustic coupling patch; Step 2, start the trimodal respiratory data acquisition box; Step 3, the patient performs quiet breathing; Step 4, the patient performs a maximal inhalation followed by a forceful exhalation; Step 5, associate the clinical examination results with the acquired data; Step 6, output risk scores, abnormality prompts, or classification prompts. Beneficial effects: Reduces wind noise interference, allows acoustic signals and lung function data to be acquired at the same time reference, and reduces frictional noise and poor contact.

This technology relates to one or more of the following: screening, diagnosis, monitoring, treatment, prevention, and improvement of respiratory disorders. [Solution] A server is provided which is programmed to automatically determine whether there are applicable upgrades to the code or data (e.g., software or firmware) stored in the electronic memory of a patient device, based on identification data that uniquely identifies the patient device. In response to the determination that there are applicable upgrades, a data package is delivered to the patient device via a first wireless transceiver, and the data package is to be automatically applied to the electronic memory of the patient device.

The application discloses a portable multifunctional dust removal breathing device and a breathing system, and relates to the technical field of coal mine dust prevention and control. The device comprises a dust removal breathing machine, a face mask, a wind supply pipe, an intelligent terminal and an integrated body. The face mask is connected with the integrated body through the wind supply pipe, the intelligent terminal is signal connected with the integrated body, the intelligent terminal is configured to collect physiological health parameters and send alarm information, and the integrated body is internally provided with a dust remover, a wind supply adjusting device and a control module. The control module is electrically connected with the dust remover and the wind supply adjusting device, the control module is configured to receive the physiological health parameters collected by the intelligent terminal, and adjust the wind supply amount of the wind supply adjusting device according to the physiological health parameters. The application solves the defects of the existing operation protection equipment and related system in the aspects of dust purification effect, breathing comfort, function integration, risk early warning capability, multi-dimensional data collection and application, and provides all-round protection for the occupational health of coal mine workers.