179 results about "Respiratory pressure" patented technology

The invention relates to the technical field of medical instruments, and particularly discloses a deep sleep maintenance algorithm for self-adaptive pressure regulation of a breathing machine, which comprises the following steps: step 1, a data acquisition and preprocessing module is connected with a pressure sensor and a flow sensor in the breathing machine to acquire a breathing pressure signal and a breathing flow rate signal of a patient in real time; 2, the data collecting and preprocessing module further conducts filtering and smoothing processing on the collected respiratory signals, noise and interference components are removed, and normalization processing is conducted on the respiratory flow rate signals; according to the breathing machine self-adaptive pressure regulation micro-awakening suppression algorithm based on the tidal volume dynamic tracking model, by dynamically tracking the tidal volume, the breathing requirement of a patient can be sensed in real time, and the pressure output of the breathing machine is self-adaptively regulated according to the change of the tidal volume; by means of the precise pressure adjusting mode, dyspnea caused by insufficient or too high pressure can be effectively avoided.

The invention relates to a method for identifying a hypoventilation type, computer equipment and a storage medium. The method comprises the following steps: acquiring breathing state data of a target user; determining breathing characteristic information according to the breathing state data; the breathing characteristic information comprises a breathing peak change rate, a breathing pressure change rate and a breathing flow ratio; and according to the breathing peak change rate, the breathing pressure change rate and the breathing flow ratio, the hypoventilation type of the target user is determined. By means of the collected breathing state data, whether a hypoventilation event occurs or not can be judged, the specific hypoventilation type can be determined in combination with the characteristics of the hypoventilation type, only the breathing-related data is collected, the obtained data is not affected by motion artifacts and changes of the elastic inertia of the pipeline, and the accuracy of hypoventilation is improved. The accuracy of the data for determining the hypoventilation type is improved, so that the accuracy of identifying the hypoventilation type is improved.

The invention relates to the technical field of equipment compensation control, and discloses a medical suction device with an altitude compensation function and a control method thereof. The method comprises the following steps: reading ambient air pressure data of a first pressure sensor, reading molecular sieve tank differential pressure data of a second pressure sensor, collecting pressure data of an output end of a third pressure sensor, and determining a real-time altitude according to the ambient air pressure data; a breathing pressure fluctuation value is calculated based on the molecular sieve tank differential pressure data, when the breathing pressure fluctuation value is lower than a preset negative pressure threshold value, the current breathing frequency is recorded, and nitrogen removal time, pressure equalizing time and flushing time are determined to control an electromagnetic valve to work; and when the oxygen concentration is lower than a first concentration threshold value and the real-time altitude height is lower than a preset height, increasing the nitrogen removal time by a first preset proportion and increasing the target rotating speed by a second preset proportion, and when the oxygen concentration is lower than a second concentration threshold value, stopping the operation of the compressor and closing all the electromagnetic valves. According to the invention, the false alarm rate is effectively reduced, and the equipment safety is improved.

The utility model discloses a precise control device for oxygen pulse quantity of an oxygen generator, which comprises a controller, sensors, an air compressor, a molecular sieve adsorption tower and an oxygen storage tank, the air compressor, the molecular sieve adsorption tower and the oxygen storage tank are sequentially connected, a control valve is mounted at an oxygen outlet of the oxygen storage tank and connected with a nasal oxygen tube, and the sensors comprise a pressure sensor and a breathing pressure sensor. The pressure sensor is connected with the oxygen storage tank and used for detecting the pressure value in the oxygen storage tank, the breathing pressure sensor is connected with the nasal oxygen tube and used for detecting the breathing condition of a user, and the controller is electrically connected with the air compressor, the control valve, the pressure sensor and the breathing pressure sensor and controls the rotating speed of the air compressor to adjust the single-time pulse oxygen supply amount of the oxygen generator. According to the device, the pressure value in the oxygen storage tank is kept stable in a feedback mode, so that the pulse oxygen supply precision can still be ensured when the oxygen generator is used for a long time, and the oxygen uptake requirement of a user is better met.

The invention relates to the technical field of breath monitoring, in particular to a big data intelligent health breath dynamic monitoring method and system and a terminal. The method comprises the following steps: acquiring a time domain interval of each respiratory cycle according to change characteristics of a respiratory pressure signal; further obtaining work doing amount corresponding to each breathing cycle, and dividing breathing modes; the newest seasonal period of the respiratory pressure signal is further extracted, and a respiratory stability coefficient is obtained according to the change characteristics of work doing amounts of respiratory periods with adjacent time sequences in the seasonal period in combination with the number distribution characteristics of the respiratory periods of the respiratory mode; furthermore, when the breathing stability coefficient is larger than or equal to the preset stability threshold value, the predicted breathing pressure signal is obtained and verified, and finally the predicted breathing mode is obtained according to the final predicted breathing pressure signal, so that the hysteresis of real-time processing is reduced, the response speed of breathing support is increased, and the comfort is improved.

A respiratory pressure therapy (RPT) system for the treatment of respiratory related diseases is disclosed. The RPT device includes a pressure generator, a pneumatic block, a base, and a device outlet for delivering a gas flow supply to a patient interface. The RPT apparatus also includes an integrated humidifier having a water reservoir. Also disclosed is an RPT device comprising a wireless data communication interface integrated with a housing and configured to connect to another device or network.

The embodiment of the invention relates to a lung function detection system which comprises a trolley used for bearing all functional modules of the detection system; the ventilation module comprises a valve body and a valve element, and the valve element is switched to be connected or disconnected with a valve body channel through actions so as to form different ventilation paths; the airway resistance module is configured to detect airway resistance parameters in the breathing process; the digital handle comprises a flow velocity tube provided with a total pressure channel, a static pressure channel and a sampling channel, the digital handle is configured to be selectively installed on the ventilation module or the airway resistance module, the breathing pressure is obtained through the total pressure channel and the static pressure channel in the breathing test process, and a corresponding gas sample is collected through the sampling channel; wherein the ventilation module is installed on the trolley through the first mechanical arm, the air channel resistance module is installed on the trolley through the second mechanical arm, and the digital handle is detachably connected to the trolley, the ventilation module or the air channel resistance module.

A vent assembly for a respiratory pressure therapy (RPT) system. The vent assembly can include a vent housing having a first orifice configured to receive a flow of pressurized gas from an RPT device, and the vent housing having a plurality of holes to discharge the pressurized gas to atmosphere; a vent housing connector having a second orifice configured to direct the flow of pressurized gas to a patient interface; and a heat and moisture exchanger (HME) comprising a HME housing and a HME material within the HME housing, wherein the vent housing and the vent housing connector are configured to at least partially connect to form a cavity, and wherein the HME is positioned in the cavity when the vent assembly is assembled.

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.

The invention relates to a parameter adjusting method and device of a breathing machine, computer equipment and a storage medium. The method comprises the following steps: acquiring gas state data and environment state data of the breathing machine; according to the gas state data and the environment state data, target adjusting parameters of the breathing machine are determined; the target adjusting parameters comprise at least one of target tidal volume, target breathing flow, breathing pressure rise time, target water tank temperature and target water tank humidity; and according to the target adjustment parameter, performing parameter adjustment on the breathing machine. Closed-loop feedback control of the gas state data and the environment state data is synchronously achieved, and the target tidal volume, the target breathing flow, the breathing pressure rising time, the target water tank temperature and the target water tank humidity are cooperatively adjusted, so that the systematic precision and the dynamic response efficiency of parameter regulation and control of the breathing machine are remarkably improved.

The present invention relates to an apparatus for humidifying a flow of breathable gas, the apparatus comprising a water reservoir including a base and a lid connected to the base, the base and the lid forming a chamber structured to hold a volume of water. The base comprises a conductor plate constructed from a heat conducting material. The apparatus further comprises a water reservoir dock structured and arranged to receive the water reservoir in an operative position, the water reservoir dock comprising a heater plate, the conductor plate being configured to thermally engage with the heater plate; and a latch movable between (1) a locked position to releasably lock the water reservoir to the water reservoir dock in the operative position, and (2) an unlocked position to allow insertion of the water reservoir into the water reservoir dock and removal of the water reservoir from the water reservoir dock. The latch is provided to the lid of the water reservoir and movable to engage the water reservoir dock in the locked position, the latch being provided as a separate and distinct structure from the lid and then secured or otherwise provided to the lid in an operative position.

The utility model relates to a weight for respiratory training and a respiratory training device, the weight for respiratory training comprises a cavity, a cover matched with the cavity, a magnet, a balancing weight and an iron sheet, the iron sheet is arranged at the bottom of the cavity, the balancing weight is arranged on the iron sheet, and the magnet is arranged between the balancing weight and the cover. The other end of the airflow pipeline is connected with one end of the air guide pipe, and the other end of the air guide pipe is connected with the breathing mouthpiece. The breathing training device has the following technical effects: 1, the breathing training device is more reliable, the breathing weights are not separated in the breathing training process, the airflow in the breathing device cylinder is more stable, and the breathing pressure impedance is ensured to be stable to a certain extent, so that the difficulty of breathing training of a user is kept; 2, the production efficiency is improved; the structure of the breathing weight is a cavity, the weight of the weight is changed by changing the material and the weight of the balancing weight, and breathing weights of different specifications and weights can be rapidly produced.

1. The present invention discloses a cushion assembly for a patient interface, the cushion assembly comprising: a plenum chamber pressurisable to a therapeutic pressure of at least 6cmH2O above ambient air pressure, said plenum chamber including a plenum chamber inlet port, said plenum chamber inlet port being sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient; and a sealing structure constructed and arranged to have a shape to form a seal with a region of the patient's face surrounding an entrance to the patient's airways such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient's nares, said seal being formed to prevent air exiting from the plenum chamber between the sealing structure and said region of the patient's face, the sealing structure structured and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use; wherein the sealing structure comprises a sealing surface to form the seal against the patient's face in use, and wherein the sealing structure comprises a tie that extends between a first interior surface region of the sealing structure that is opposite the sealing surface and a second interior surface region of the patient interface such that the tie resists deformation of the sealing structure to prevent blowout.

A respiratory pressure therapy (RPT) system may be configured to direct a flow of air to a therapeutic pressure above atmospheric pressure to a patient interface worn by a patient to treat a respiratory disorder The RPT system may include: a component that at least partly forms a passage for the flow of air at the therapeutic pressure, the component being one of the patient interface, a flow generator including a blower, an air circuit, or a humidifier; and a vaporization device that includes: a vaporization module including a vaporizer and a heating element; and a reservoir attached to the vaporization module, and the reservoir being configured to store water and provide water to the vaporizer for vaporization during use, wherein at least a portion of the vaporizer is exposed to the passage for the flow of air at the therapeutic pressure.

This application provides a method, system, and device for ventilator mask recognition based on transfer learning. The method collects time-series data of respiratory flow and pressure using flow and pressure sensors inside a home ventilator; a data preprocessing module cleans the time-series data to obtain high-quality respiratory flow and pressure time-series data; a data segmentation module divides the preprocessed time-series data into discrete flow and pressure data segments; a transfer learning module transfers the parameters of the source model to the target model, and the target model is trained and fine-tuned using the segmented discrete flow and pressure data segments to obtain the final mask type recognition model. The final mask type recognition model can accurately predict the ventilator mask type based on respiratory flow and pressure signals. This application utilizes transfer learning to improve the robustness of the model to mask type recognition across individuals and devices.

The invention provides CT equipment with a breathing machine. The CT equipment comprises a CT scanner, the breathing machine and a bed body. A scanning hollow part is arranged in the middle of the CT scanner, a transmission seat is fixedly arranged at the front bottom end of the CT scanner, a breathing machine is movably connected to the transmission seat and provided with a telescopic air pipe, a bed body is fixedly arranged on the breathing machine and corresponds to the scanning hollow part of the CT scanner, a transmission mechanism is arranged in the transmission seat, and the transmission mechanism is in transmission connection with the breathing machine. And the CT scanner is electrically connected with the breathing machine. According to the invention, the CT scanner and the breathing machine are arranged as an integrated device, and the breathing machine can automatically control the breathing pressure and frequency of the pet according to the operation of the CT scanner, so that the pet can make the corresponding breathing pressure and frequency to comply with the scanning detection of the CT scanner; the pet breathing control system has the advantages of stably controlling pet breathing, reducing motion artifacts caused by pet breathing motion during CT scanning, being capable of improving pet safety, being convenient to use and efficient in operation and the like.

The invention discloses a breathing machine which comprises a detection device arranged between an air outlet pipeline of the breathing machine and a mask; the device comprises a pressure detection unit or / and a sound detection unit. And the control module is used for controlling the rotating speed of a fan of the breathing machine according to the received pressure signal or / and sound signal. According to the breathing machine, due to the fact that the detection device is closer to the patient, the breathing pressure change or / and sound of the patient can be detected more quickly and more accurately and fed back to the control module in time, and the control module adjusts the rotating speed of the draught fan and adjusts the pressure of airflow conveyed to the mask in time. Therefore, the breathing machine can rapidly and accurately detect the breathing pressure change or / and sound of the patient and adjust the rotating speed of the fan in time so as to rapidly adjust the pressure of the airflow conveyed to the mask, and the technical problem that in the prior art, the breathing pressure or sound detection of the patient is not accurate is solved; and the technical problem that the fan of the breathing machine is not adjusted in time is also solved.

The present application relates to the technical field of respiratory monitoring, in particular to a big data intelligent health respiratory dynamic monitoring method, system and terminal. According to the change characteristics of the respiratory pressure signal, the time domain interval of each respiratory cycle is obtained; further, the work amount corresponding to each respiratory cycle is obtained, and the respiratory mode is divided; further, the latest seasonal cycle of the respiratory pressure signal is extracted, according to the change characteristics of the work amount of the time series adjacent respiratory cycles in the seasonal cycle, combined with the number distribution characteristics of the respiratory cycles of the respiratory mode, the respiratory stability coefficient is obtained; further, when the respiratory stability coefficient is greater than or equal to the preset stability threshold, the predicted respiratory pressure signal is obtained and verified, and finally the predicted respiratory mode is obtained according to the final predicted respiratory pressure signal, the hysteresis of real-time processing is reduced, the response speed of respiratory support is improved, and the comfort is improved.

The utility model provides a breathing gun which can be used for safely feeding gas output by equipment such as a breathing machine, a lung clearance device and an airway clearance expanding instrument into the respiratory tract of a patient, preventing the gas on the side of the patient from infecting and polluting the equipment, and preventing cross infection of the patient. The device comprises a rapid butt joint used for being in butt joint with a rapid butt joint base, an atomization hose, an oscillation expansion hose, a respiratory pressure monitoring hose, an atomizer and a mask. Filter membranes are arranged in an atomization filter cavity, an oscillation expansion filter cavity and a respiratory pressure monitoring filter cavity in the quick butt joint and are respectively communicated with an atomization hose, an oscillation expansion hose and a respiratory pressure monitoring hose; the atomization hose is communicated with the airflow input end of the atomizer, and the airflow output end of the atomizer, the oscillation expansion hose and the breathing pressure monitoring hose are all communicated with the mask; after the quick butt joint is in butt joint with the quick butt joint seat, the atomization butt joint pipe, the oscillation expansion butt joint pipe and the respiratory pressure monitoring butt joint pipe are in sealed contact with corresponding pipelines on the quick butt joint seat respectively.

A method for classifying a user of a respiratory pressure therapy (RPT) device is disclosed, the method comprising: identifying that the user has started a therapy session using the RPT device; receiving first input data associated with the user and the therapy session; training a machine learning model based on a plurality of pre-classified users and the first input data to determine associations between the user and the plurality of classifications; classifying the user as a classification in the plurality of classifications; and causing a user device and / or the RPT device to perform an action in response to classifying the user as the classification. The first input data may include a selection of the user in response to a survey cue.

The present invention relates to an apparatus for humidifying a flow of breathable gas, the apparatus comprising a water reservoir including a base and a lid connected to the base, the base and the lid forming a chamber structured to hold a volume of water. The base comprises a conductor plate constructed from a heat conducting material. The apparatus further comprises a water reservoir dock structured and arranged to receive the water reservoir in an operative position, the water reservoir dock comprising a heater plate, the conductor plate being configured to thermally engage with the heater plate; and a latch movable between (1) a locked position to releasably lock the water reservoir to the water reservoir dock in the operative position, and (2) an unlocked position to allow insertion of the water reservoir into the water reservoir dock and removal of the water reservoir from the water reservoir dock. The latch is provided to the lid of the water reservoir and movable to engage the water reservoir dock in the locked position, the latch being provided as a separate and distinct structure from the lid and then secured or otherwise provided to the lid in an operative position.

A water reservoir configured to be removably connected to a respiratory pressure therapy (RPT) device has a water reservoir base configured to hold a volume of water to be used for humidification of the breathable air, a water reservoir lid connected to the water reservoir base, a retainer configured to engage with a corresponding portion of a water reservoir dock associated with the RPT device, thus securing the water reservoir to the water reservoir dock, and a portion of the lid being configured to receive a downward force to cause movement of the retainer against the bias of a spring, thus allowing removal of the water reservoir from the water reservoir dock.

A respiratory pressure therapy (RPT) system may be configured to direct a flow of air to a therapeutic pressure above atmospheric pressure to a patient interface worn by a patient to treat a respiratory disorder The RPT system may include: a component that at least partly forms a passage for the flow of air at the therapeutic pressure, the component being one of the patient interface, a flow generator including a blower, an air circuit, or a humidifier; and a vaporization device that includes: a vaporization module including a vaporizer and a heating element; and a reservoir attached to the vaporization module, and the reservoir being configured to store water and provide water to the vaporizer for vaporization during use, wherein at least a portion of the vaporizer is exposed to the passage for the flow of air at the therapeutic pressure.

A respiratory therapy system may include a vent structure. In one form the vent structure includes a vent housing, and a plurality of partitions inside the vent housing forming therebetween a plurality of vent slots. The vent slots include a vent inlet configured to receive an air flow, and a vent outlet configured to allow the air flow to exit into the surrounding ambient air. The partitions may be formed such that each vent slot has a smaller cross-sectional area at a first region closer to the vent inlet than a second region. The vent structure may include a plurality of deflectors configured to deflect the air flow through each vent slot towards a part of the vent housing and / or another component in the respiratory system. The vent structure may include a projecting portion extending outwardly from the vent outlet to inhibit generation of flow layer instabilities.

Disclosed are vents and vent assemblies for use with respiratory pressure therapy systems. In examples the vents are provided with a vent cover to aid with the diffusion of gasses passing through the vent. In other examples the vent cover is provided with a cavity configured to receive and slow the gas passing through the vent inlet.

Device (1) for generating a continuous positive airway pressure, in particular for respiratory support in premature and newborn infants (2), comprising: an inlet-side inlet channel (3), for connection to a compressed air supply, an outlet-side collecting channel (4) for connection to a ventilation mask (5) or a mononasal pharyngeal tube (6) or a binasal prong, a connecting piece (7) between the inlet-side inflow channel (3) and the outlet-side collecting channel (4), wherein the connecting piece (7) has at least three openings (8) to the environment, characterized by the fact that the connecting piece (7) is designed as a hollow cylinder with open ends and the inlet-side inflow channel (3) and the outlet-side collecting channel (4) are arranged opposite each other in the hollow cylinder wall of the connecting piece (7) and axially to each other.

Methods and apparatus provide for automatic circuit disconnect monitoring, such as for respiratory apparatus or systems. Disconnection of a patient circuit, including a patient interface and an air delivery circuit, can be detected and a message or alarm activated. In some versions, the occurrence of a circuit disconnect event can be detected based on a change in a disconnect set value, such as by a processor, from a transient disconnect parameter. The disconnect set value can be determined based on the patient circuit type. The transient disconnect parameter can be determined from detected pressure and flow, and can be, for example, a conductance value or an impedance value. The disconnect event can be discriminated by one or more detected respiratory indicators. In some cases, transient impedance or conductance can be used to assess reconnection of the patient circuit, detect flow starvation, determine triggering and cyclic respiratory shape, and detect patient or circuit occlusion.

A system and method to collect feedback data from a patient wearing an interface such as a mask when using a respiratory pressure therapy device such as a CPAP device. The system includes a storage device including a facial image of the patient. An interface in communication with the respiratory pressure therapy device collect operational data from when the patient uses the interface. A patient interface collects subjective patient input data from the patient in relation to the patient interface. An analysis module correlates a characteristic of the interface with the facial image data, operational data and subjective patient input data.