23 results about "Expired air" patented technology

Provided is a diagnostic support program that is possible to display a movement of an area whose shape changes for each respiratory element including all or part of expired air or inspired air.There are provided processing of acquiring a plurality of frame images from a database that stores images, processing of specifying of a cycle of a respiratory element including all or part of expired air or inspired air based on pixels in a specific area in each of the frame images, processing of detecting a lung field based on the cycle of the specified respiratory element, processing of dividing the detected lung field into a plurality of block areas and calculating a change in image in a block area in each of the frame images, processing of Fourier-transforming a change in image in each block area in each of the frame images, processing of extracting a spectrum in a fixed band including a spectrum corresponding to the cycle of the respiratory element, out of a spectrum obtained after the Fourier-transforming, processing of performing inverse Fourier transform on the spectrum extracted from the fixed band, and processing of displaying each of the images after performing the inverse Fourier transform, on a display.

The invention relates to a dynamically adaptive airway stabiliser (1) comprising: - a flow channel (2) for guiding the expired air of a patient, wherein the flow channel (2) has three successive flow channel portions (3, 4, 5) and the first flow channel portion (3) is in the form of a mouthpiece; - a measuring unit (9) for determining a measured value of the volumetric breathing flow in the second flow channel portion (4); - an adjustment element (12) for changing the flow resistance of the third flow channel portion (5); - an evaluation and control unit (11) for evaluating the determined measured value and for controlling the adjustment element (12).

A tracheal connector is connected to a respiratory gas generator and a tracheal tube. The tracheal connector includes a tracheal connector body connected to the tracheal tube, a connector tube connected to the tracheal connector body and the respiratory gas generator, and a restriction mechanism configured to narrow a respiratory gas flow path configured to allow the respiratory gas to flow therein. The tracheal connector body includes a tracheal port connected to the tracheal tube, an exhaust port facing the tracheal port and configured to discharge at least expired air of the subject, and a respiratory port connected to the connector tube. The restriction mechanism is provided on the respiratory gas flow path between the respiratory port and the tracheal port.

The invention discloses a method for identifying VOCs biomarkers in expiration of a physiologically abnormal crowd based on machine learning, and the method comprises the steps: obtaining expiration VOCs data of the physiologically abnormal crowd and a normal crowd through a PTR-TOF-MS online sampling technology, and carrying out the recognition of the VOCs biomarkers in the expiration of the physiologically abnormal crowd and the normal crowd through a propensity matching scoring method in combination with mixed factors of the physiologically abnormal crowd and the normal crowd. Hybrid factor interference of VOCs data in the crowd is eliminated, and the VOCs biomarkers in expiration of the physiologically abnormal crowd are obtained through screening; the crowds with physiological abnormality are crowds with abnormal transglutaminase, crowds with abnormal glucose and / or crowds with abnormal apolipoprotein A; the mixed factor information is age, gender, body mass index and / or living habits. And a model capable of distinguishing the physiological abnormality crowd is constructed based on the screened VOCs biomarkers in the expiration of the physiological abnormality crowd, and the physiological abnormality crowd can be distinguished quickly, noninvasively and accurately by using the model.

The utility model relates to a spraying device for a nasal cavity, which comprises a spraying main body, a spraying head and a spraying head, the nose pad comprises a nose pad opening and an air inlet, a flow channel is formed between the nose pad and the spray body, and fog drops sprayed out of the nozzle sequentially pass through the flow channel and the nose pad opening to enter the nasal cavity; and the one-way valve is constructed to allow external gas to enter the flow channel through the gas inlet and not allow the gas in the flow channel to be discharged through the gas inlet. According to the spraying device, the nose pad is provided with the air inlet, and the one-way valve is arranged, so that only air can enter the air inlet of the nose pad, air can not exit from the air inlet, resistance encountered by fogdrops sprayed out of the nozzle due to expiration of a user is avoided, expired air flow is prevented from carrying part of the fogdrops to be discharged from the air inlet, and the spraying effect is ensured.

Proposed is a pulmonary disease screening system and a method for screening pulmonary disease using the same, which is configured to integrate a lung function measurement device and a breath analysis device into a single device and analyze biomarkers in pulmonary diseases by extracting the alveolar gas, the last part of the expired air injected into a lung function measurement device.

A sanitizing face mask inhibits the transmission of pathogens in air respired through the nose and mouth of a wearer. The mask includes hydrophobic inner and outer layers and an intermediate layer enclosed between them. The intermediate layer is saturated with a sanitizing liquid such as an ethanol solution. Respired air encounters the sanitizing liquid as it passes through the intermediate layer, killing pathogens borne on droplets or aerosols. The sanitizing mask protects the wearer, from pathogens in the inspired air, and others, from possible pathogens in the expired air of the wearer.

The utility model provides a switching device for an anaesthesia machine, and belongs to the technical field of medical instruments. The anesthesia machine comprises a gas path monitoring module, the switching device comprises a connecting main body, the connecting main body comprises a first connecting port and a second connecting port, the first connecting port is used for being connected with a human body, and the second connecting port is used for being connected with the gas path monitoring module; the collector is used for collecting water vapor in exhaled air of the human body, and the collector is connected to one side of the connecting body and located between the first connecting port and the second connecting port; wherein a first channel communicated with the first connecting port and a second channel communicated with the second connecting port are arranged in the connecting main body, and the first channel and the second channel are communicated through an inner cavity of the collector. The switching device can remove water vapor in expired air of the human body, and the influence of the water vapor on the air path monitoring module is avoided.

A method, system, and computer program product for monitoring sepsis in a subject. A device may monitor expired air from the subject who has been administered a bicarbonate salt comprising a carbon-13 isotope. The device may measure a ratio of carbon dioxide comprising the carbon-13 isotope (13CO2) to carbon dioxide comprising a carbon-12 isotope (12CO2) in the monitored expired air and may determine a level of sepsis in the subject based on the ratio, where a lower ratio of 13CO2 to 12CO2 indicates an increased level of sepsis. The device may display an indication of the level of sepsis in the subject.

The utility model relates to the technical field of diving equipment, in particular to a diving nasal plug which comprises a plug body, the plug body is of a hollow structure, an air chamber is formed in the plug body, one end of the plug body is of a conical structure and forms an air inlet, and the other end of the plug body is of an open structure and forms an air outlet. An air inlet assembly is fixedly installed at the end, close to the air inlet, in the air chamber, an air outlet assembly is detachably and fixedly installed at the end, close to the air outlet, in the air chamber, and a piston assembly used for being matched with the air inlet assembly or the air outlet assembly to control opening and closing of the plug body is further installed in the air chamber. According to the utility model, the plug body, the air inlet assembly, the air outlet assembly and the piston assembly are arranged in a matched manner, so that a user can freely control the opening and closing states of the air outlet valve according to the expired air volume of the nose underwater, and mirror balance operation and ear pressure balance operation can be freely completed without the participation of hand actions.

This invention provides a mask for an mechanical ventilator, including a first opening portion that takes in inspired air from the mechanical ventilator, a second opening portion that has an edge abutting against a skin of a user to send the inspired air to at least one of a nose and a mouth of the user, and a bellows portion that is formed on at least a part of the edge of the second opening portion, forms a space for temporarily storing the inspired air and expired air of the user between the first opening portion and the second opening: portion, and deforms following a shape of a face of the user.

Provided is a diagnostic support program that is possible to display a movement of an area whose shape 5 changes for each respiratory element including all or part of expired air or inspired air. There are provided processing of acquiring a plurality of frame images from a database that stores images, processing of specifying of a cycle of a 10 respiratory element including all or part of expired air or inspired air based on pixels in a specific area in each of the frame images, processing of detecting a lung field based on the cycle of the specified respiratory element, processing of dividing the 15 detected lung field into a plurality of block areas and calculating a change in image in a block area in each of the frame images, processing of Fourier-transforming a change in image in each block area in each of the frame images, processing of extracting a spectrum in a fixed 20 band including a spectrum corresponding to the cycle of the respiratory element, out of a spectrum obtained after the Fourier-transforming, processing of performing inverse Fourier transform on the spectrum extracted from the fixed band, and processing of 25 displaying each of the images after performing the inverse Fourier transform, on a display. 20 24 26 70 70 30 N ov 2 02 4 3 0 N o v 2 0 2 4 5 2 0 2 4 2 6 7 0 7 0

The utility model relates to the field of medical detection, in particular to a wearable mouth-nose respiration monitor based on the humidity principle, which comprises a main body shell, a closed cavity and an open cavity are arranged on the main body shell, a battery and a circuit board are arranged in the closed cavity, and the circuit board comprises a data processing module and a wireless communication module. The data processing module is connected with the nasal channel humidity sensor and the oral channel humidity sensor; the battery supplies power to the circuit board and the sensors; the upper half part of the open cavity is provided with a nasal channel humidity sensor, and the lower half part is provided with a mouth channel humidity sensor; a baffle is arranged between the mouth channel and the nose channel; a nose pad structure is arranged on the upper portion of the main body shell and connected with a flexible bandage, mouth breathing and nose breathing intensity of a user are detected according to the principle relation that the expired air volume of the human body is in direct proportion to the water molecule content, and meanwhile the frequency and duration breathing indexes of mouth breathing and nose breathing of the user can be monitored. And monitoring data can be transmitted to external equipment.

The utility model relates to the technical field of medical instruments, and discloses a breathing machine condensate water collector which comprises a collecting cylinder, a separating structure for separating a collecting cylinder cavity is arranged in a collecting cylinder cavity, the separating structure comprises a turnover body and a side plate, the side plate is fixedly connected with the collecting cylinder, the turnover body is elastically and rotatably connected with the side plate, and the collecting cylinder cavity is internally provided with a water inlet and a water outlet. Condensate water can push the overturning body to overturn around the side plate, the overturning body and the side plate jointly form a plate matched with the collecting barrel cavity and divide the collecting barrel cavity into an upper cavity and a lower cavity which are isolated from each other, gravity of the condensate water pushes the overturning body to overturn, the overturning body drives the lug plate and the rotating shaft to rotate, and the rotating shaft rotates in the shaft hole and enables the torsion spring to deform. After condensate water falls into the cavity below the overturning body, the overturning body can reset, the cavity of the collecting barrel is jointly separated by a circular plate formed by the overturning body and the side plate, the probability that bacteria and viruses in the condensate water in expired air are discharged out of the collecting barrel is reduced, and a better protection effect is achieved.

The invention provides a multifunctional expired gas online sampling device and a method thereof. The device comprises a pressure measuring system, a flow measuring system, a mode switching system and a cleaning system. The method comprises the following steps: before sampling, NC of the two-position three-way electromagnetic valve is closed, NO of the two-position three-way electromagnetic valve is opened, and gas in the expired gas online sampling device is emptied through the normally-open two-way electromagnetic valve; nO of the two-position three-way electromagnetic valve is closed, and NC is opened; air is blown into the expired air on-line sampling device through the blowing nozzle, expired air flows through the pressure sensor, the expired air pressure is measured, and saliva is collected into the saliva bin in a centralized mode; exhaled air flows from the high-pressure detection port to the low-pressure detection port, and the flow of the exhaled air is measured through the flow sensor; exhaled air flows to the electromagnetic valve frame from the low-pressure detection port, flows through the sampling port through the passage NO, and is collected by a sample container or analyzed on line by an analysis instrument; and the expired gas pressure, the expired gas flow and an online analysis result are displayed through a screen and a control system.

The utility model discloses a suite device for oxygen uptake and atomization under autonomous respiration, which comprises a shell, one end of the shell is connected with a tracheal catheter, the convenient requirement of a patient can be met through plug-in connection and quick connection and disassembly, the shell is provided with a lacing, the lacing can be used for fixing the lacing around the neck, and the lacing can be used for fixing the tracheal catheter. The other end of the shell is communicated with an atomization pipeline, a partition plate is further arranged in the shell, smooth breathing can be guaranteed, meanwhile, the oxygen inhalation and atomization utilization rate is increased, in addition, an expired air collecting pipe can be arranged, and the oxygen inhalation atomization device is quite suitable for a patient with a trachea cannula or a tracheotomy cannula in place in the autonomous breathing state. And the device has a relatively high application prospect in the aspects of oxygen uptake, atomization treatment and gas monitoring.

The invention relates to a sensing material for detecting isoprene in exhaled air and sensing equipment thereof, the sensing material is an n-type In2O3-based semiconductor two-dimensional nanosheet with the thickness of 10-100 nm, p-type impurities Cr, Cu and Ni with the content of 0-10 wt.% are doped to construct a p-n heterojunction, 0-5 wt.% of uniformly distributed Pt nanoclusters with the diameter of 2-5 nm are loaded, the sensing detection lower limit of isoprene reaches 2 ppb, and the sensing material can be used for detecting isoprene in exhaled air. And the responsiveness to isoprene is 4-10 times that of other gases in expired air. The optimized sensing material is fixed on a sensing chip of one of interdigital and annular electrode structures and the like, and is integrated on the surface of the electrode of the sensing chip to serve as a sensitive layer interacting with isoprene molecules, and the prepared portable digital display sensor can detect the concentration of isoprene in expired gas of a potential lung cancer patient within 3 seconds. The method is low in cost, easy to obtain, noninvasive, simple and convenient to operate, rapid in detection and high in accuracy, greatly promotes non-invasive early screening and monitoring of lung cancer, and meets various medical scenes and health management requirements.

The invention provides a breather valve for a mask, an exhaled air condensate collecting mask and application and detection methods of the breather valve and the exhaled air condensate collecting mask, and the breather valve for the mask comprises a breather valve body which comprises an air inlet; the collecting piece is arranged in the breather valve body and is used for collecting exhaled air condensate; the collecting piece comprises a patterned gold nanoparticle superlattice film, and the patterned gold nanoparticle superlattice film is arranged towards the air inlet. The breathing valve for the mask contains the patterned gold nanoparticle superlattice film, expired air condensate is directionally evaporated and shrunk on the surface of the breathing valve, and therefore uniform and concentrated distribution of analytes is achieved. The purpose of accurately detecting exhaled air condensate is achieved through Raman spectrum, and the detection sensitivity is high. Moreover, the mask comprising the breather valve for the mask is convenient to carry, low in manufacturing cost and suitable for wide application.

The invention discloses an anaesthesia machine breathing circuit device with gas condensation and liquid atomization functions, relates to the field of anaesthesia machine breathing circuits, and aims to solve the problems that an existing anaesthesia machine closed circuit only depends on passive HME for moisturizing, expired water vapor accumulates to cause early failure of an absorption tank, inhaled air is dry and cold, an airway is easily damaged, and a large amount of anesthetic escapes. A condensation box and an atomization box are sequentially connected in series in a breathing pipeline, the condensation box is composed of a TEC refrigeration sheet, a condensation plate, a fan and a water collection tank, expired air is cooled to the temperature below the dew point, water drops are condensed out, and the water drops are led away through an infusion pump; and the dehumidified dry gas still containing the anesthetic gas is returned to the COC absorption tank through the channel. A flexible electric heating film and an ultrasonic atomization sheet are arranged in the atomization box, condensate water is heated to 32-37 DEG C and atomized, and the condensate water is mixed with loop dry gas and conveyed back to a patient.

A wearable capnography device implemented in a form of piercing jewelry that can be worn in a nose or a mouth. The device includes miniaturized sensors to measure pCO2 values continually, wherein the sensor is positioned such as when the device is worn, the sensor is exposed to expired air from the nose or the mouth respectively. The wearable capnography device can be wirelessly coupled to an ear-worn receiver, which upon receiving a signal from the wearable capnography device can generate an audio and vibratory alarm.

A wearable capnography device implemented in a form of piercing jewelry that can be worn in a nose or a mouth. The device includes miniaturized sensors to measure pCO2 values continually, wherein the sensor is positioned such as when the device is worn, the sensor is exposed to expired air from the nose or the mouth respectively. The wearable capnography device can be wirelessly coupled to an ear-worn receiver, which upon receiving a signal from the wearable capnography device can generate an audio and vibratory alarm.

The invention discloses a lip contraction breathing training device which comprises a cover body, an air outlet mechanism, an air inlet assembly and a detection piece, an air inlet hole and an air outlet hole are formed in the cover body, and the two sides of the cover body are worn on the face of a patient through binding pieces; the air outlet mechanism comprises an air outlet inner pipe, an air outlet outer pipe and an adjusting impedance piece, the inner end of the air outlet inner pipe is used for covering lips, and the adjusting impedance piece is arranged in the air outlet outer pipe; the air inlet assembly is installed on the mask body, and the inner end of the air inlet assembly penetrates through the air inlet hole, extends to the inner side of the mask body and then covers the nose. The detection piece is installed at the end, located on the outer side of the mask body, of the air outlet mechanism and used for detecting the flow rate of expired air of the patient. By means of the air outlet mechanism and the air inlet assembly of the device, a patient can develop the habit of nose inspiration and mouth expiration through long-time training, and the rehabilitation effect of lip contraction breathing is enhanced; the impedance adjusting piece is used for adjusting the impedance of expiration of the patient, so that the expiration intensity required by training is achieved when the patient expires, and the confidence of the patient in training is enhanced.

A device for measuring the inspiration and expiration muscle strength of a patient by measuring the pressure of the air inspired and / or of the air expired by the patient, said device comprising a first tubular component (2) for measuring said pressure and a second component (4) to which the first component (2) is removably constrained, adapted to read the measurements carried out by the first component (2) and highlight them through a display (6) to the patient, said first component (2) having two check valves (38, 40) adapted to alternatively allow the flow of the inspired air and the flow of the of the expired air. The first component (2) has a tubular-shaped body (9) and it comprises a switch element to allow the patient to alternatively inspire and expire the air from said valves (38, 40), in said body (9) there being provided for a member (50) for measuring said pressure values.