50 results about "Ventilatory function" patented technology

The invention relates to a visual airway clearance device with an intelligent airway internal and external oscillation control function. The visual airway clearance device comprises an electrical impedance imaging device, a controller, an airway internal oscillation device and an airway external oscillation device. The electrical impedance imaging device is used for evaluating the lung ventilation function condition of a patient and transmitting measured lung ventilation function index parameters of the patient to the controller; the controller receives the pulmonary ventilation function index parameters of the electrical impedance imaging device, processes the pulmonary ventilation function index parameters and outputs a control signal; and after receiving the control signal, the air passage internal and external oscillation devices adjust the operation modes and parameters of the air passage internal and external oscillation devices in real time. The system has the advantages that a four-dimensional integrated structure of electrical impedance imaging visual evaluation, intelligent mode selection, double-oscillation cooperation and closed-loop feedback is created for the first time, the problem that the traditional technology cannot dynamically adapt to the heterogeneity of patients is solved, and personalized airway clearance modes and optimal adjustment parameters are provided for different patients; and the effect of removing airway deposited secretions is obvious.

The utility model relates to medical auxiliary appliance related technical field more, more specifically, the utility model provides prone position ventilation air cushion, including support pad body and support part, the support part sets up in support pad body, and the support part includes with the face support air cushion, shoulder support air cushion, crotch support air cushion and knee support air cushion corresponding to the position of the limb part, the face support air cushion, shoulder support air cushion, crotch support air cushion and knee support air cushion independently sets up and is respectively through the inflation conduit with the air pump intercommunication, the shoulder support air cushion and knee support air cushion respectively are equipped with phase change material in, the face support air cushion is provided with ventilation groove, is equipped with the collecting box for receiving secretion in ventilation groove, and the collecting box setting in ventilation groove is opposite the mouth part setting, is used for receiving oral cavity secretion (such as saliva), and the secretion in the collecting box is washed and collected regularly by starting negative pressure pump and water pump, avoids the secretion stagnation and influences ventilation function.

The invention relates to the technical field of pulmonary function detection, in particular to a pulmonary ventilation function detection device, method and system. The tension degree of a subject is quantified through waveform change of an electrocardio curve and amplitude fluctuation of an arm myoelectricity curve to determine the initial tension degree; the initial tension degree is corrected according to the characteristic that tension expressions presented by an electrocardio curve and an arm myoelectricity curve during tension of the subject are consistent, and the corrected tension degree with more accurate tension degree characterization is determined; then the initial pulmonary ventilation volume time sequence curve is corrected in combination with the corrected tension degree, and the problem that the pulmonary ventilation function of the subject is not accurately measured directly according to the pulmonary ventilation volume time sequence curve of the subject in an existing pulmonary ventilation capacity test is solved; the accuracy of lung ventilation function detection according to the corrected lung ventilation volume time sequence curve is higher.

This application is applicable to the technical field of anesthesia airways, and particularly relates to a method for generating prompt information and an anesthesia airway opening assistance device. The method includes: obtaining hot gas information in real time; wherein, the hot gas information includes temperature data and gas flow rate transmitted by an array composed of a plurality of sensors at preset time intervals; obtaining analysis information based on the hot gas information; wherein, the analysis information includes at least one airflow obstruction index corresponding to a specific area in the user's airway and ventilation volume information, the airflow obstruction index reflects the obstruction condition of the specific area in the user's airway, and the ventilation volume information includes left lung ventilation volume and right lung ventilation volume; obtaining prompt information based on the analysis information. The method for generating prompt information provided by the embodiments of this application can improve the problem that when a patient is anesthetized, airway collapse occurs, resulting in airway obstruction and further causing ventilation dysfunction in the patient.

The invention relates to the field of medical apparatus and instruments, and discloses an anesthesia system and a medical device.The anesthesia system comprises a gas source module, a flow monitoring module, an anesthetic gas conveying system, a waste gas purification system, a rapid oxygenation module, a hyperbaric oxygen module, a negative pressure suction system, a manual control module and an auxiliary ventilation branch; the anesthetic gas conveying system provides anesthetic support and first respiratory support for a patient, the rapid oxygenation module provides second respiratory support for the patient, the air inlet end of the auxiliary ventilation branch is connected with the flow monitoring module, the air outlet end of the auxiliary ventilation branch is connected with the inspiration branch, and third respiratory support is provided for the patient. Various ventilation functions are integrated together, the application range of the anesthesia system can be expanded, use of extra equipment is reduced, the burden of a user is relieved, meanwhile, the auxiliary ventilation branch and an original anesthesia gas path share the flow adjusting, monitoring and oxygen concentration monitoring functions, the gas path structure is simplified, the cost of the anesthesia system is reduced, and the workload of the user is relieved.

The present application relates to a kind of multifunctional pipeline assembly method and multifunctional pipeline, belong to composite precision forming technical field, solve the single function of existing pipeline, the pipeline of ventilation pipeline and electric signal is set apart, cannot satisfy the use demand in narrow cabin problem.The assembly method of the multifunctional pipeline, comprising the following steps: step 1: connecting the gas path main body with the connecting seat, obtain gas path assembly;Step 2: the insulation part is set in the outside of thermocouple, and thermocouple is fixed on the connecting seat;Step 3: sleeve assembly is set in the outside of gas path main body and thermocouple;Step 4: connecting the gas path main body with the pipe mouth;Step 5: the free end of thermocouple is connected with electric connector, obtain multifunctional pipeline.The present application realizes the diversification of pipeline function, a pipeline has both ventilation function, and has electric function.

The invention discloses a precoating plate capable of being opened and closed. The precoating plate comprises a precoating plate body, an opening and closing block, a transmission assembly and a control mechanism. A control mechanism can drive a moving plate to move front and back, when the moving plate moves towards the outer side, the moving plate drives a plurality of opening and closing blocks to move towards the outer side through a transmission rod, an opening groove is opened, meanwhile, the moving plate drives a plurality of closing plates to move towards the outer side through a connecting rod, and a plurality of through holes are opened; in this way, the inner side of the pre-coating plate body is ventilated, and a wall abutting against the inner side of the pre-coating plate body has a ventilation function; when the moving plate moves towards the inner side, the moving plate drives the opening and closing blocks to move towards the inner side through the transmission rods, the opening and closing blocks are in butt joint with the opening grooves, meanwhile, the moving plate drives the closing plates to move towards the inner side through the connecting rods, and the closing plates abut against the through holes in a closed mode, so that structural resetting is achieved, and structural stability and integrity are achieved.

The invention belongs to the field of artificial intelligence and non-contact measurement, and relates to a lung ventilation function measurement method and device based on a smartphone microphone. A built-in microphone of the smart phone is used for collecting breathing audio signals of a user in the measurement process, and a lung ventilation function true value is obtained through the lung function instrument to serve as reference data; dividing an inspiration phase and an expiration phase of the breathing audio signal based on a threshold method, and extracting an expiration phase audio clip; processing the expiration signal by using a self-adaptive convolution frequency domain enhancement network, dynamically adjusting a convolution kernel to adapt to different frequency bands by self-adaptive convolution, and enhancing low-frequency components by combining frequency domain enhancement with fast Fourier transform; the transformation type convolutional network models time sequence dependence through causal convolution and jump convolution, and the feature learning ability is enhanced through residual connection and dense connection; and finally predicting lung ventilation function parameters through full connection layer regression. According to the invention, the accuracy of lung ventilation function measurement based on the microphone of the smart phone is improved, and the user can conveniently carry out self-health monitoring.

The invention relates to the technical field of medical image processing, in particular to a lung segment function evaluation method based on drainage basin characteristics, which comprises the following steps: acquiring medical image data of a lung; based on the medical image data, constructing a digital model of a lung blood vessel network and an airway network; calculating network features of the pulmonary vessel network and the airway network based on the digital model; generating a blood supply function score and a ventilation function score according to the network features; calculating a comprehensive function score based on the blood supply function score and the ventilation function score; according to the method, the characteristics of the pulmonary vascular network and the airway network are comprehensively analyzed, advanced network analysis and machine learning technologies are combined, multi-dimensional evaluation of the pulmonary segment function is achieved, digital models of the pulmonary vascular network and the airway network are constructed, and the pulmonary segment function evaluation accuracy is improved. And then comprehensively describing the characteristics of the lung structure by calculating a series of network characteristics, such as centrality, efficiency and density.

The invention discloses invasive and noninvasive respiratory tract sepsis dual-purpose breathing equipment, and belongs to the technical field of medical instruments, the breathing equipment comprises a tracheostomy cannula and an air source assembly, the starting end of the tracheostomy cannula is used for being inserted into the trachea of a tracheostomy patient, the tail end of the tracheostomy cannula is located outside the neck of the patient, and the tail end of the tracheostomy cannula is provided with a speaking assembly; the tracheostomy device further comprises a tracheostomy mask which can cover the wound of the neck of the patient. The breathing equipment is provided with a first mode and a second mode; when the breathing equipment is in a first mode, the tracheostomy cannula is connected with the speaking assembly, and the tracheostomy mask is connected with the air source assembly; and when the breathing equipment is in the second mode, the tracheostomy tube is connected with the air source assembly. The first-mode invasive ventilation function and the second-mode non-invasive ventilation and sound production function are integrated into one set of equipment, so that multiple functions are integrated, medical staff do not need to prepare different equipment for different modes, and clinical management is simplified.

The present invention provides a nebulization inhalation device for the department of respiratory medicine, belonging to the technical field of medical devices. It includes an inhalation part and a nebulization cylinder. The inhalation part and the nebulization cylinder are detachably connected through a first connecting pipe body and a second connecting pipe body. The first connecting pipe body is fixedly installed at the air delivery end of the nebulization cylinder, and the second connecting pipe body is fixedly installed at the air delivery end of the inhalation part. A partition part and an opening mechanism are arranged on the inner surface of the second connecting pipe body, and the partition part has toughness. By arranging a partition part inside the second connecting pipe body on the surfaces of the inhalation mask and the mouthpiece, and through the cooperation of the opening mechanism and the removal mechanism, the state of the partition part changes before and after nebulization treatment. That is, when the first connecting pipe body and the second connecting pipe body are removed after the nebulization treatment is over, the partition part can block the second connecting pipe body, causing the second connecting pipe body to lose its ventilation function, thereby avoiding the repeated use of the inhalation mask and the mouthpiece.

The invention relates to the technical field of cardiopulmonary rehabilitation training devices, and discloses a cardiopulmonary rehabilitation training device for assisting chest-expanding exercise, which comprises a bed board, two arm grooves, a left arm groove, a right arm groove, a left arm groove and a right arm groove, the two arm bearing plates are movably arranged in the two arm grooves respectively; a telescopic plate is movably arranged at the tail end of the arm bearing plate in a telescopic mode, and a handle is fixedly installed at the tail end of the telescopic plate. The arm bearing plate can rotate around a virtual center, and the virtual center is the shoulder joint of the patient. According to the cardiopulmonary rehabilitation training device for assisting the chest expanding exercise, the arms of a patient are allowed to be fully unfolded backwards, the problem that the arms of the patient cannot be completely unfolded due to bed limitation of existing equipment is solved, the thorax can be effectively expanded, the gas exchange and ventilation functions of the lung are improved, and the cardiopulmonary health of the patient is improved.

A high-temperature sterilization bag with venting function includes a main body formed of heat-resistant material and having a containing space, with a filling port disposed on one end for filling object therethrough, and at least a U-shaped venting portion disposed on a lateral side of the main body. The venting portion has at least three fifths of its volume arranged in the containing space. During heating process, steam is discharged through the venting portion without the need of tearing an opening on the high-temperature sterilization bag, thereby preventing burst due to excessive internal pressure.

A one-way valve, a ventilation mechanism, a ventilation insole and a sole relate to the technical field of shoe structures. The one-way valve comprises a valve body, an air inlet hole is provided at the air inlet end of the valve body, a flat mouth is provided at the air outlet end of the valve body, a flow guide is provided at the air outlet end of the flat mouth, and a gap is left between the flow guide and the flat mouth; the air entering through the air inlet hole can flow to the other end of the one-way valve through the valve body, the flat mouth, the gap between the flow guide and the flat mouth, and when the airflow flows in the reverse direction, the air flowing directly to the flat mouth can be diverted to both sides of the flat mouth under the action of the flow guide, so that the flat mouth is closed by the pressure of the airflow. The present invention is provided with a normally open flat mouth for normal air intake, and when exhausting, the flat mouth can be flattened and closed under the action of the airflow pressure to prevent gas from flowing out, thereby realizing a one-way ventilation function, and at the same time the flow guide can prevent the reverse airflow from rushing directly into the flat mouth and affecting its normal closure. The present invention is not only simple in structure, low in failure rate, and more durable, but also easy to implement.

The invention discloses application of a reagent for detecting LSH in preparation of a chronic obstructive pulmonary disease diagnosis preparation and application of a reagent for overexpressing the LSH in preparation of a medicine for treating the chronic obstructive pulmonary disease. Protein expression of LSH in a patient suffering from the chronic obstructive pulmonary disease is found to be lower than that of healthy people and expression of pure smokers through western blot and RT-qPCR detection for the first time. Therefore, the possibility of using the LSH as the detection marker of the chronic obstructive pulmonary disease is provided. The LSH overexpression adeno-associated virus improves obstructive ventilation dysfunction and large and small airway dysfunction of a model mouse, relieves the emphysema degree, reduces the airway inflammation level and inhibits small airway remodeling, and further analysis on inflammatory cells in the lung shows that the overexpression of the LSH overexpression adeno-associated virus can reduce the proportion of pulmonary interstitial macrophages. The invention provides a new way with a prospect for treating the chronic obstructive pulmonary disease.

The invention relates to the technical field of lung function evaluation, in particular to an atomization image analysis method for lung ventilation function evaluation. The method comprises the following steps: firstly, acquiring lung atomization images under various concentrations by changing the concentration of aerosol; based on image block level analysis, the lung is divided into different functional regions (such as lung lobe and airway regions), particle distribution difference characteristics of different image blocks are compared to quantify deposition indexes, and regional ventilation uniformity is reflected; sub-regions are further divided in combination with density clustering, the number change of atomized particles is analyzed across time points, and a metabolic rate index is calculated to represent local metabolic activity; and finally fusing the deposition index and the metabolic rate index to generate a ventilation obstruction evaluation value. According to the method, through space-time sequence multi-parameter coupling, the breathing mode and individual difference interference are effectively reduced, the ventilation function and the metabolism state are synchronously analyzed, a quantitative basis is provided for pulmonary ventilation disorder analysis, and evaluation comprehensiveness and clinical decision accuracy are remarkably improved.

The present invention relates to the technical field of medical image processing. More specifically, it relates to a method for evaluating lung segment function based on watershed characteristics, including: obtaining medical image data of the lungs; constructing digital models of the pulmonary vascular network and the airway network based on the medical image data; calculating the network characteristics of the pulmonary vascular network and the airway network based on the digital models; generating a blood supply function score and a ventilation function score according to the network characteristics; calculating a comprehensive function score based on the blood supply function score and the ventilation function score; and outputting the comprehensive function score as the evaluation result of the lung segment function. The method of the present invention realizes the multi-dimensional evaluation of the lung segment function by comprehensively analyzing the characteristics of the pulmonary vascular network and the airway network, combining advanced network analysis and machine learning techniques, constructing digital models of the pulmonary blood vessels and airways, and then comprehensively characterizing the characteristics of the lung structure by calculating a series of network characteristics, such as centrality, efficiency, and density.

The invention discloses a transmission device for assisting a small animal to autonomously breathe hyperpolarized gas, which is characterized in that a sealed breathing mask is used for replacing a trachea cannula, and stable pressure of atmospheric pressure at the breathing mask is used for replacing periodic pressure change under high-pressure forced ventilation at the cannula; the animal spontaneous respiration gas amount is used for replacing the manually set fixed gas amount, and the state of inhaled gas is controlled under spontaneous respiration to replace fully controlled mechanical ventilation in the respiration process; the invention further discloses a method for assisting the small animal in autonomously breathing the hyperpolarized gas, the device can supply the gas amount required by autonomously breathing to the experimental animal according to the self-breathing state of the experimental animal, and the gas amount inhaled by the experimental animal each time is determined by the self-breathing state, so that the experimental animal can autonomously breathe in a free state; lung expansion in an abnormal breathing state can be avoided, so that a more accurate ventilation function and qi-blood exchange function evaluation result is obtained.

The inventions relate to medical equipment and characterize a ventilated ozonizing drainage and lavage kit, and a drainage catheter, an aspirator and an ozonator contained in said kit, as well as a method for the prophylaxis and treatment of destructive inflammatory processes. The inventions are intended to provide reliable thorough long-term atraumatic active and passive drainage, as well as ease of use.

This invention discloses the application of lily-derived nanovesicles (LDPNVs) as a novel radiation protection drug in radiation-induced lung injury, relating to the field of biomedical technology. It includes administering effective doses of lily-derived nanovesicles to subjects to prevent and alleviate radiation-induced lung injury. The LDPNVs can improve the viability and clonal survival rate of radiation-damaged lung epithelial cells at the cellular level, and alleviate pathological damage to lung tissue and improve lung function at the animal level. This invention achieves the blocking of core pathways of radiation injury, specifically downregulating the expression of key inflammatory factors, reducing lactate dehydrogenase release and total protein content in bronchoalveolar lavage fluid, and correcting abnormal respiratory rate and ventilatory dysfunction. It yields a novel radiation protection drug for radiation-induced lung injury that is naturally derived, stable in preparation, highly targeted, and has a definite protective effect, filling the application gap of plant-derived nanovesicles in this field and providing a safe and effective intervention for complications of radiotherapy for thoracic tumors.

The application discloses application of a reagent for detecting LSH in preparation of a preparation for diagnosing chronic obstructive pulmonary disease and application of a reagent for overexpressing LSH in preparation of a medicine for treating chronic obstructive pulmonary disease. The application finds that the protein expression of LSH in a smoking chronic obstructive pulmonary disease patient is lower than that in a healthy person and a simple smoker for the first time through Western blotting and RT-qPCR detection. Therefore, the application provides a possibility for LSH as a detection marker for chronic obstructive pulmonary disease. The application improves the obstructive ventilation dysfunction of a model mouse and the function disorder of large and small airways, reduces the degree of pulmonary emphysema, reduces the airway inflammation level and inhibits small airway remodeling through LSH overexpression adeno-associated virus, and further analysis of inflammatory cells in the lung finds that the overexpression can reduce the proportion of pulmonary interstitial macrophages. The application provides a promising new way for the treatment of chronic obstructive pulmonary disease.

The invention relates to a lung function diagnosis and prediction system of an improved random forest model based on weighted regularization information gain, and belongs to the field of diagnosis system construction. The system comprises a data extraction module, a data preprocessing module, a feature selection module, a model training module, a diagnosis module and a result output module. The method comprises the following steps: inputting a pulmonary detection report in three forms of a text file, a PDF file and a picture file, reading each index data value in the report, training and loading a pre-trained prediction model, respectively selecting indexes required for predicting a ventilation function and a dispersion function, and inputting the indexes into the corresponding models for prediction. And finally, storing the diagnosis conclusion into a new file as a complete diagnosis report. According to the method, the SMOTE algorithm is adopted to perform up-sampling on minority class samples, so that the diagnosis accuracy and the generalization ability of the model are improved. And meanwhile, a regularization item is introduced into information gain calculation, so that an over-fitting phenomenon can be effectively prevented.

This invention provides the use of a trisaccharide compound with a core structure of Glc(1→4)IdoA(1→4)GlcNS in the preparation of a drug for treating or preventing asthma. This compound can reduce lung inflammation in asthma model mice, reduce mucus production in the trachea, and effectively improve ventilation.

The present invention relates to the technical field of pulmonary function testing, and in particular to a pulmonary ventilation function testing device, method and system. The present invention quantifies the tension of a subject through waveform changes of an electrocardiogram (ECG) curve and amplitude fluctuations of an arm electromyography (EMG) curve to determine an initial tension level, and corrects the initial tension level based on the characteristic that the tension expressions presented by the ECG curve and the arm electromyography curve when the subject is nervous are consistent, thereby determining a corrected tension level that more accurately represents the tension level; and then corrects the initial pulmonary ventilation volume timing curve based on the corrected tension level, thereby solving the problem of inaccurate measurement of the pulmonary ventilation function of a subject by directly measuring the pulmonary ventilation volume timing curve of the subject in existing pulmonary ventilation tests, thereby improving the accuracy of pulmonary ventilation function testing based on the corrected pulmonary ventilation volume timing curve.

The utility model discloses a nasal ventilation dilatation band, which relates to the technical field of medical instruments and comprises a base band, dilatation bands and adjusting bands, the base band is an elastic and tough device which is integrally formed, the dilatation bands are symmetrically sewed and fixed on the outer surface of the base band, and the adjusting bands are symmetrically and fixedly attached to the outer surfaces of bases of the dilatation bands respectively. An adjusting belt sticking part is arranged at the far end of the adjusting belt; the inner surface of the base is respectively provided with a supporting and expanding device, the expanding belt lifts the hook plug outwards and upwards under the pressing of the adjusting belt, when the two expanding belt pasting parts are arranged on the head in a surrounding and sleeving mode and are fixedly pasted together, the hook plug on the base of the expanding belt can be lifted outwards and upwards at the same time, and therefore the nose threshold can be expanded through the tail hook part of the hook plug. The front nostril dilator is simple in design and easy to wear and detach, the front nostril is directly dilated through external physical force, medicine or operation is not needed, the ventilation function of the nasal cavity can be improved by dilating the nasal threshold and the front nostril, and therefore the problem of nasal obstruction caused by the narrow position is solved.

The present application discloses a rotary lifting structure and adsorption equipment with ventilation function, the rotary lifting structure with ventilation function includes: a mounting assembly having a chamber; a channel fixedly connected to the mounting assembly, the channel communicating with the chamber; a rotating module arranged on the mounting assembly; a lifting module arranged on the mounting assembly, the lifting module drivingly connecting the rotating module, for lifting the rotating module; a functional shaft portion arranged in the chamber, the two ends of the functional shaft passing through the chamber, the upper end of the functional shaft connected to the rotating shaft of the rotating module, and under the driving action of the rotating module and the lifting module, the functional shaft can be lifted and rotated in the chamber, the portion of the functional shaft located in the chamber is formed with a through hole, and an airway is formed inside the functional shaft, the chamber is connected to the airway through the through hole, the lower end of the functional shaft forms an air port, and the air port is connected to the airway. The channel fixedly connected to the mounting assembly is connected to the functional shaft, thereby avoiding the adverse effects caused by hose deformation.

The application discloses an intelligent evaluation system for ventilation function examination, and solves the problem that the quality evaluation of ventilation function examination is mainly based on subjective feeling, lacks reasonable and objective evaluation standards, and is prone to evaluation errors and confusion, and the technical scheme is as follows: a lung function instrument for measurement, a VC measurement and judgment module for judging the measurement result of vital capacity, a curve display and judgment module for synchronously measuring and displaying a forced vital capacity curve and a maximum expiratory flow volume curve, a measurement reminding module for measurement reminding, and a processing and evaluation module for evaluating the measurement result and selecting a corresponding curve for parameter calculation.The intelligent evaluation system for ventilation function examination can objectively and accurately evaluate the quality of ventilation examination, and significantly improves the accuracy and efficiency of lung ventilation function examination.

The invention provides a chronic obstructive pulmonary screening auxiliary diagnosis system based on multi-source data, and belongs to the technical field of medical diagnosis, and the system comprises a data collection module which is used for collecting related data of a patient, and the related data comprises a chest CT image and a lung function index; the lung function index comprises a ventilation function index; the data construction module responds to the related data and is used for constructing at least six emphysema observation points according to the acquired chest CT images and acquiring CT images corresponding to the emphysema observation points from the acquired chest CT images; and the feature extraction module is used for extracting features in the CT images corresponding to the emphysema observation points, and the extracted features comprise morphological features. Through multi-source data fusion, dynamic monitoring and quantitative analysis, the accuracy and efficiency of chronic obstructive pulmonary disease screening are improved, and a scientific and reliable auxiliary diagnosis tool is provided for clinic.

Provided herein are implantable mechanical ventilation systems and methods for improving, supporting and / or treating ventilation insufficiency in a patient in need thereof.

The present application relates to a kind of pipeline connecting joint and pipeline, belong to composite precision forming technical field, solve the problem that existing connecting joint cannot meet the use demand of pipeline with the dual function of ventilation and power supply.The pipeline connecting joint includes connecting body;The connecting body is provided with axial through-hole, and the through-hole is used to pass through gas;The end surface of the connecting body is provided with first recess, and the first recess is used to place thermocouple, to realize power signal;The first recess is communicated with the through-hole.The present application realizes the diversification of pipeline function, and a pipeline has both ventilation function and power supply function.