39 results about "On ventilator" patented technology

A therapy utilizing inhaled anesthetic agents (such as desflurane, sevoflurane, isoflurane, or xenon) for the sedation of patients outside of the immediate perioperative space such as in the medical intensive care unit (MICU) and the surgical intensive care unit (SICU). The therapy includes controlled delivery of volatile anesthetic agents to patients undergoing ventilatory support on an ICU ventilator over extended periods of time. A system which provides for the delivery of anesthetic agents includes an anesthetic agent vaporizer element, an anesthetic agent reflector, and a plug-in cassette which contains both a cartridge housing liquid phase volatile anesthetic agent and an anesthetic vapor scrubbing medium.

A therapy utilizing inhaled anesthetic agents (such as desflurane, sevoflurane, isoflurane, or xenon) for the sedation of patients outside of the immediate perioperative space such as in the medical intensive care unit (MICU) and the surgical intensive care unit (SICU). The therapy includes controlled delivery of volatile anesthetic agents to patients undergoing ventilatory support on an ICU ventilator over extended periods of time. A system which provides for the delivery of anesthetic agents includes an anesthetic agent vaporizer element, an anesthetic agent reflector, and a plug-in cassette which contains both a cartridge housing liquid phase volatile anesthetic agent and an anesthetic vapor scrubbing medium.

A mechanical ventilation device (10) includes a mechanical ventilator. At least one airway sensor (24, 26) is configured to measure at least one of airway pressure and airway air flow as a function of time for a patient on the mechanical ventilator. At least one microprocessor (28, 30) is programmed to analyze at least one of airway pressure and airway air flow measured by the airway sensor to detect a spontaneous respiration anomaly in respiratory muscle pressure as a function of time generated by a patient on the mechanical ventilator. A display component (22) is configured to display an indication of a spontaneous respiration anomaly detected by the anomaly detection component.

A method and apparatus determine a phase angle between a first signal based on ventilator airflow for a breath and a second signal based upon ventilator firing for the breath. Based on the phase angle, an indication of a nature of dis-synchrony of airflow and ventilator firing is provided.

The invention discloses a volumetric ventilation control method and system for a turbo ventilator, and the method comprises the steps: 1) calculating a target flow velocity according to a target tidal volume and total inspiration time, and calculating a target pressure according to airway resistance and a lung compliance value in combination with the target flow velocity; 2) calculating a turbine output pressure value in real time according to the target pressure within the total air suction time, and conducting calculating to obtain a turbine rotating speed in combination with the target flow speed; and (3) conducting proportional differential integral control according to the deviation value of the flow velocity value monitored in real time and the target flow velocity, adjusting the rotating speed of the turbine by adjusting the driving voltage of the turbine, and thereby keeping the constant flow velocity. According to the ventilation control method, a method in the prior art that a proportional valve is needed for adjusting the flow speed is effectively improved, the gas circuit structure is simplified, the ventilation performance and control precision of the turbine are improved, the turbine controls the ventilation effect accurately and reliably through actual ventilation use on the breathing machine, and the good effect is achieved.

The invention discloses an airbag pressure adjusting system for a ventilator. The system includes the ventilator and a trachea cannula, the ventilator has an electronic control device, the trachea cannula includes an air guide tube, the in-vitro end of the air guide tube is connected with an air inlet nozzle, and the air inlet nozzle is matched with a connection opening in the ventilator in an insertion manner; an airbag is connected around the inner end of the air guide tube, and the airbag is connected with an inflation nozzle through an inflation tube; a first pressure sensor is connected with the electric control device; and a connection opening in the ventilator is connected with a measuring tube, and the first pressure sensor extends into the measuring tube. The invention also discloses a use method of the above adjusting system. When pressure detected by the first pressure sensor is greater than 1000 Pa and less than or equal to 3000 Pa, a low-pressure solenoid valve is closed,and a high-pressure solenoid valve is opened; and when pressure detected by the first pressure sensor is greater than or equal to 0 and less than or equal to 1000 Pa, the high-pressure solenoid valveis closed, and the low-pressure solenoid valve is opened. The system greatly reduces the damage to patient tracheas while ensuring airbag sealing performance, and is more energy-saving.

The invention discloses a system for protecting healthcare workers from exposure to pathogens while attending to a patient in respiratory distress that requires procedures such as intubation and subsequent placement of a patient on a ventilator. The system comprises a transparent and flexible drape, covering the facial area of the patient with openings situated cranially above the patient, fitted with sleeves / cuffs to which gloves are optionally sealed to the cuffs. The drape is supported above the patient with one or more supporting members, which are secured to the patient's bed. The perimeter of the drape is optionally fitted with a plurality of weights such that when the drape is placed over the supporting member it forms an impervious barrier against pathogens between the patient and the healthcare workers. The system is lightweight and can remain attached to the patient's bed should the patient require movement to a different location.

The invention discloses a breather valve applied to breathing machines and a control method of the breather valve. The breather valve comprises a valve body, an air inlet tube and an outer tube, the air inlet tube and the outer tube are arranged at air inlet and exhaust ends of the valve body, the outer tube is a rectangular tube formed on two opposite sides of the air inlet tube, a seat ring is fixedly installed on the inner wall of the exhaust end of the air inlet tube, a membrane is installed at one end of the seat ring, vent holes are formed in the seat ring, a partition plate extending outwards to the entry to the outer tube and gradually increasing in distance with the air inlet tube is formed on the outer periphery of the air inlet tube, two opposite sides of the partition plate, located at the entry to the outer tube and the orifice of the outer tube are parallel, the partition plates divides the outer tube into an outer air path away from the air inlet tube and an inner air path close to the air inlet tube, a communicating hole used for communicating the inner air path with the air inlet tube is formed in the tube wall of the air inlet tube, and the free end of the partition plate is rotatably provided with a sealing plate. By the arrangement, smoothness in breathing can be improved by the aid of the breather valve.

The invention relates to the technical field of tracheal intubation equipment and relates to an off-line system under an oxygen therapy mode of a patient suffering from tracheal intubation. The systemcomprises an intubation cannula, a threaded pipe, a Y-shaped joint, an air return pipeline, an air supply pipeline and a breathing machine. One end of the intubation cannula is communicated with thethreaded pipe through an L-shaped joint, one end of the threaded pipe is communicated with one end of the Y-shaped joint, two openings in the end, away from the threaded pipe, of the Y-shaped joint are connected to the air return pipeline and the air supply pipeline respectively, water accumulation devices are arranged in the middle of the air return pipeline and the middle of the air supply pipeline respectively, one end of the air return pipeline is connected to an air return end of a respirator, and one end of the air supply pipeline is connected to an air supply end of the respirator. By means of the design, off-line operation can be completed under the condition that a breathing circuit is not disconnected, a patient continuously inhales heated and humidified gas in the off-line process so that stimulation of the gas to the patient is avoided, and a disposable oxygen inhalation device does not need to be additionally used so that operation time is saved and hospitalization expenses are saved.

A mechanical ventilation device (10) includes a mechanical ventilator. At least one airway sensor (24, 26) is configured to measure at least one of airway pressure and airway air flow as a function of time for a patient on the mechanical ventilator. At least one microprocessor (28, 30) is programmed to analyze at least one of airway pressure and airway air flow measured by the airway sensor to detect a spontaneous respiration anomaly in respiratory muscle pressure as a function of time generated by a patient on the mechanical ventilator. A display component (22) is configured to display an indication of a spontaneous respiration anomaly detected by the anomaly detection component.

Supplemental oxygen is used by millions of people each year in hospitals and at home. The device and methods described allow people on supplemental oxygen through a feedback loop to optimize their blood oxygen level by measuring oxygen and / or carbon dioxide and / or other related gases in the blood. Because the device and methods optimize the level of supplemental oxygen and / or carbon dioxide and / or other related gases, complications (from too much or too little oxygen and / or carbon dioxide) including death can be prevented. In addition, users can reduce their costs by reducing the amount of oxygen needed as well as labor costs. Additionally, helicopters, ambulance, and mobile surgical sites can reduce weight in critical situations. In addition, the device and methods described also allow patients on ventilators through a feedback loop to optimize ventilation by measuring carbon dioxide in the blood; which can reduce complications, and reduce labor costs. Finally, the device and methods provides a warning system when the oxygen supply is compromised, has or is exhausted.

The invention relates to a respirator system having functions of expectoration and vibration. The respirator system comprises a pressure generator or flow generator arranged on a respirator, one or more sensors located on gas channel pipelines of the respirator and a central processing unit device, wherein the pressure generator or flow generator is connected with the central processing unit device; each sensor is connected with the central processing unit device; and under the assistance of the pressure generator or flow generator and each sensor, the central processing unit device can deliver respiratory gases for treating the disease of a patient object to the trachea of the patient object under definite pressure characteristics or under definite volume characteristics to be used for treating the disease of the patient object. Through the adoption of the respirator system provided by the invention, the functions of respiration and expectoration can be integrated to one equipment, sothat the treatment effect of expectoration can be greatly improved.

The invention discloses a meterable, multifunctional and safe closed sputum suction device. The sputum suction device installs an anti-aspiration valve on the breathing tube between the ventilator interface and the flushing tube, and rotates the outer disc during use. It realizes the opening and closing function with the inner disk, and a self-closing valve is installed on the flushing pipe. By controlling the clamping and loosening of the clip of the self-closing valve, the flushing liquid in the flushing pipe can be controlled to flow in and stop, and the valve is sucked under negative pressure. A sputum metering collector is installed between the negative pressure suction connection port. The sputum metering collector can collect sputum by rotating the relative position of the bottle body and the bottle cap, and has a metering function. This device solves the problem of flushing and suction. When the sputum tube is used, the flushing fluid enters the patient's airway and the potential risks caused by the medical staff's negligence and forgetting to close the valve of the flushing fluid. Influence of conventional sputum suction device on ventilator therapy.

Ventilators and methods of stabilizing valve position on a ventilator are provided. The method includes controlling fluid flow through a valve with a first control loop. Determining that the valve is in a steady state condition with respect to the first control loop. Activating a second control loop once the steady state condition is determined. Controlling a position of the valve with the second control loop based on a position sensor that measures linear displacement of the valve, and disabling the second control loop when the first control loop is in operation. The first control loop is independent from the second control loop, and the second control loop operates at a smaller sampling interval period than the first control loop.

The invention discloses a breathing machine monitoring method and system. The system a first information import module for importing breathing machine equipment information stored in an existing medical equipment management system; a second information import module for importing medical information of the existing medical management system and obtaining a breathing machine use request instruction; a judgment module for judging available states of breathing machines and matching proper breathing machines for use according to the breathing machine equipment information, the medical informationand the breathing machine use request instruction; a data analysis management module for analyzing the using condition of the breathing machine according to breathing machine ON / OFF management data; and a storage module for storing breathing machine use data and analysis data. According to the system and the method, a hospital breathing machine management platform capable of realizing interconnection and intercommunication of equipment management and clinical behaviors can support and analyze the use characteristics of the breathing machine according to clinical use data, effective supervisionof the whole clinical use process of the breathing machine is realized, hidden danger management is realized through computer data, and medical risks are reduced.

The invention discloses a small household breathing machine. The small household breathing machine comprises a main body and a humidifying box, wherein a humidifying groove is formed in one side of the main body; the humidifying box is located in the humidifying groove; convex plates are symmetrically arranged on the two sides of the humidifying box; sliding grooves are formed in the positions, corresponding to the convex plates, of the humidifying groove; telescopic rods symmetrically penetrate through the two side walls, located in the humidifying groove, of the main body; inner fixing bases are arranged on the telescopic rods in a sleeving mode; outer fixing sleeves are arranged at the positions, corresponding to the inner fixing bases, of the outer wall of the main body; first circular plates are arranged at the contact positions of the telescopic rods and the outer wall of the main body; springs are arranged on the rod bodies, located in the inner fixing bases, of the telescopic rods in a sleeving mode; and clamping grooves are formed in the positions, corresponding to the telescopic rods, of the convex plates. Through the arrangement of the inner fixing bases, the outer fixing sleeves, the telescopic rods, the springs and the clamping grooves, the humidifying box can be clamped in the humidifying groove, and the humidifying box can be conveniently taken out of the humidifying groove, so that the difficulty of disassembling the humidifying box from the breathing machine is reduced, the old can conveniently add water into the humidifying box, and the water adding speed is improved.

The invention discloses a breathing machine which comprises a first air bag, a second air bag, a valve bank, one or more molecular sieve tanks, an oxygen storage tank, an air-oxygen mixer and a mask integrated air leakage valve. An extrusion plate is arranged between the second air bag and the first air bag, an air outlet of the second air bag is connected with a molecular sieve tank, two ends ofthe molecular sieve tank are respectively provided with a nitrogen outlet and an oxygen outlet, the oxygen outlet is connected with an oxygen storage tank, and the internal space of the second air bagis compressed and expanded once and synchronously adsorbed and desorbed with a molecular sieve in the molecular sieve tank once; an air outlet of the first air bag is connected with an air-oxygen mixer which is connected with a mask integrated air leakage valve. The breathing machine has the beneficial effects that extremely low cost is added to a common breathing machine, so that the breathing machine has an oxygen production function, the breathing machine can supplement a certain amount of oxygen at any time and can also be powered off under special conditions, and the emergency or low-cost requirement that part of users need to inhale rich oxygen is met.

A portable pressure calibrator used in cooperation with a breathing machine relates to a detection device and comprises folding supports, the folding supports are symmetrically arranged on the breathing machine, buckle seats are arranged in the folding supports, a main rack is arranged on the buckle seats, the buckle seats are symmetrically arranged on the main rack, and a central control display screen is arranged in the main rack. A central control unit is arranged at the bottom of the central control display screen and is connected with the central control display screen through an electronic element, the central control unit is arranged in the main frame, a wireless slave station is arranged in the main frame and is in sliding connection with the main frame, and a wired slave station is arranged in the main frame and is in sliding connection with the wired slave station. By means of the device, random debugging in the calibration operation process is facilitated through the arrangement of the handle device, meanwhile, the device can be fixed to the breathing machine through the support, and equipment loss is avoided; a master-slave station integrated mode is adopted, so that matching use and carrying with the breathing machine are facilitated; through wired and wireless two-end slave station communication acquisition, data accuracy is facilitated, and signal interference does not occur at the same time.

The invention belongs to the technical field of medical instruments, particularly relates to a pipeline adjusting device of a breathing machine for an intensive care unit of the lung department, and aims to solve the problems that the length of a gas conveying pipeline of an existing breathing machine is always constant, adjustment cannot be achieved, and in the actual use process, use is inconvenient due to the fact that the pipeline is too long or too short. According to the scheme, the device comprises a base, wheels are installed at the four corners of the bottom of the base, a vertical plate is fixedly installed on the right side of the top of the base, a supporting plate is fixedly installed on the left side of the vertical plate, a breathing machine is fixedly installed on the top of the supporting plate, and a supporting plate is fixedly installed on the top of the left side of the vertical plate; according to the breathing machine, the length of a pipeline connected to the breathing machine can be conveniently adjusted, so that the breathing machine can be conveniently matched with a patient during breathing treatment of the patient, meanwhile, the pipeline can be stably supported, stable gas conveying can be guaranteed, and the breathing machine has good use convenience during use.

A method for assisting a user of a ventilator (1), comprising the following steps:coupling a mobile terminal (2), which comprises a control algorithm, to the ventilator (1) for the exchange of data between the terminal (2) and the ventilator (1);transmitting data registered on the ventilator (1) to the terminal (2), wherein the data include a ventilation parameter acquired by the ventilator (1);evaluating the transmitted data on the terminal (2), and / or by means of a processor device that communicates with the terminal (2), in order to provide at least one user information item such that the user, irrespective of their medical expertise, is provided with an evaluation and / or assistance based at least partially on the ventilation parameter;outputting the user information item by means of the terminal (2).

The invention discloses a breathing machine integrated respiratory muscle strength training VIMT mode system. The system comprises a breathing machine for supplying oxygen to an intubation patient, atrachea cannula serving as an artificial airway of the patient, and a Y-shaped connector for communicating the breathing machine with the trachea cannula; the breathing machine is provided with a pressure sensor, an oxygen concentration sensor, an oxygen valve, an air valve, an inspiration connector, an expiration connector, an inspiration valve, an expiration valve, a breathing control device, atouch screen and a processor chip; and a VIMT respiratory muscle strength training module for realizing respiratory muscle strength training of the patient through the breathing control device is arranged in the processor chip. The VIMT respiratory muscle strength training module monitors an inspiration negative pressure signal when a patient begins to inhale and a duration signal when the patientbegins to inhale through the pressure sensor of the breathing machine to control the air supply time of the breathing machine, respiratory strength training of the patient can be achieved on the breathing machine, and the built-in breathing control device of the breathing machine is used for achieving respiratory muscle strength training of the patient.

The present invention provides a breathing machine inhalation loop disinfection device. The breathing machine inhalation loop disinfection device comprises a breathing machine, also an air source providing mechanism, an ozone generating mechanism, a simulated breathing mechanism and a control mechanism, the breathing machine is provided with an air terminal, an oxygen terminal, an inspiration end,an expiration end and an exhaust port; the ozone generating mechanism is provided with an input terminal and an output terminal, the air source providing mechanism is connected with the input terminal of the ozone generating mechanism through a high-pressure input hose, the high-pressure input hose is provided with an air pressure gauge, the output terminal of the ozone generating mechanism is connected with an ozone terminal of the breathing machine through a high-pressure output hose; and the simulated breathing mechanism is respectively connected with an inspiration end and an expiration end of the breathing machine through an inspiration channel and an expiration channel. The breathing machine inhalation loop disinfection device is quick in disinfection, simple to operate and suitablefor disinfection of different types of breathing machines.

A method of identifying the occurrence of patient-ventilator asynchrony (PVA) includes using a cardiogenic index generated from a number of breath attribute signals measured by ventilators. The method can be implemented in a ventilator by a controller that includes a machine learning model trained to use the cardiogenic index and other features extracted from ventilator waveforms to identify the occurrence of PVAs. A ventilator equipped with such a controller can provide real-time alerts to a caregiver that a PVA has occurred so that the ventilator settings can be adjusted.

The invention relates to the field of early diagnosis of ventilator-induced lung injury, and discloses an early diagnosis method of ventilator-induced lung injury, which comprises the following steps: acquiring a lung epithelial cell tissue, culturing the lung epithelial cell tissue in an RPMI-1640 culture medium, determining the expression condition of the profibrinolysin activator inhibitor-1 (PAI-1), and carrying out diagnosis on ventilator-induced lung injury according to the expression condition of the PAI-1. The method can perform early diagnosis on ventilator-induced lung injury by using the PAI-1 as the biological index for monitoring ventilator-induced lung injury.

A method for updating the firmware and software of a ventilator, wherein the firmware and the software of the ventilator are divided into individual modules and separate updates are provided for each module in the form of module updates and these module updates are transferred to the ventilator from at least one remote station spatially separated from the ventilator via at least one interface of the ventilator and the module updates are performed on the ventilator.

The invention discloses a ventilator, comprising a first air bag and a second air bag, a valve group, one or more molecular sieve tanks, an oxygen storage tank, an air-oxygen mixer, and an integrated air leakage valve of a mask; The pressure plate, the air outlet of the second air bag is connected with the molecular sieve tank, the two ends of the molecular sieve tank are respectively provided with a nitrogen discharge port and an oxygen discharge port, the oxygen discharge port is connected with the oxygen storage tank, and the inner space of the second air bag is compressed and expanded once with the molecular sieve tank in the molecular sieve tank. The adsorption and desorption are synchronized once; the air outlet of the first air bag is connected to the air-oxygen mixer, and the air-oxygen mixer is connected to the integrated air leakage valve of the mask. The beneficial effects of the present invention: the extremely low cost is added to the ordinary ventilator, so that the ventilator is equipped with an oxygen production function, the device can add a certain amount of oxygen at any time, and can also work without electricity under special conditions, It solves the emergency or low-cost needs of some users who need to inhale rich oxygen.

The invention relates to a movable first-aid breathing machine which comprises a movable suite, a material supporting frame, a breathing machine, a breathing guide pipe and a guide pipe frame. The material supporting frame is installed on the movable suite, the breathing machine is fixedly installed on the material supporting frame, the breathing guide pipe is connected to the breathing machine, and the guide pipe frame is installed on the breathing machine. The breathing machine can solve the following problems when an existing breathing machine is used: a, in order to facilitate movement of the existing breathing machine, rollers are often required to be mounted at the lower end of the breathing machine, so that the breathing machine is often moved due to external force interference during use, the breathing machine is further separated from a breathing catheter, and great potential safety hazards exist; and b, when an existing breathing machine carries out gas transmission treatment, a breathing catheter is usually and freely placed and then is tripped to a human body, so that the breathing catheter and the breathing machine are separated, and certain potential safety hazards exist.

The invention discloses a respirator mask. The respirator mask comprises a mask body, an air inlet pipe, an attachment plate and a tying band, wherein a round block is arranged on the surface of the attachment plate, a connecting rod is arranged on the surface of the round block, a cylinder is arranged at the end, away from the round block, of the connecting rod, a rotating rod is arranged on thecylinder, a placement semi-ring is arranged at the end, away from the cylinder, of the rotating rod, two corresponding cloth strips are symmetrically arranged on the tying band, earmuffs are arrangedbetween the cloth strips, eye masks and second Velcro are arranged on opposite surfaces of the two earmuffs respectively, and first Velcro is arranged on side edges of the eye masks; a respirator airsupply tube is limited on the placement semi-ring, the mask is prevented from pressing the face of a patient under the action of a pipeline, the pipeline is limited by the placement semi-ring, and thewearing comfort of the mask is improved for the patient; and by the designed cloth strips and the earmuffs, the earmuffs cover ears of the patient, so that external noise is reduced, a good rest environment is provided for the patient, and the mask has diversified functions.