34 results about "Air trapping" patented technology

The utility model relates to the technical field of smoking sets, and discloses an electronic atomization device which comprises a shell, an atomization assembly and a control assembly. The airflow sensing switch is used for sensing airflow change in the airflow channel; an accommodating cavity for mounting the airflow sensing switch and a first through hole extending away from the accommodating cavity are defined in the protection piece, and the accommodating cavity is communicated with the airflow channel through the first through hole; the side, away from the containing cavity, of the protection piece is provided with a wall face, the first through hole communicates with or penetrates through the wall face, the protection piece is provided with at least one pressure relief channel communicating with the first through hole, and the pressure relief channel is configured to provide an air guide path between the interior and the exterior of the containing cavity, the air flow sensing switch can be prevented from self-starting due to air trapping.

The present disclosure provides interactive education systems, apparatus, components, and methods for teaching patient care. In some instances, devices, systems, and associated methods include air trapping techniques for asthma simulation. In some aspects of the present disclosure, a system comprises: a patient simulator having a simulated body portion; and an asthma simulation module positioned within the simulated body portion, the asthma simulation module including: a first simulated lung; an adjustable valve along a first air path between a simulated trachea and the first simulated lung; and an air trapping module along a second air path between the simulated trachea and the first simulated lung.

Systems and methods are provided for integrating direct air capture of carbon dioxide with capture of carbon dioxide from a point source. The systems and methods can include exposing an adsorbent to a low CO2 content gas flow (e.g., air) at conditions similar to ambient conditions to perform an initial amount of sorption of CO2. The initial sorption results in a partially loaded sorbent having a first sorbent loading. The partially loaded sorbent can then be exposed to a flue gas and / or other gas flow that contains a higher CO2 content. This allows a second sorption step to be performed using a higher CO2 content gas, resulting in an additionally loaded sorbent having a second (higher) sorbent loading. The sorbed CO2 can then be desorbed from the sorbent.

To provide a blood purification device capable of preventing connection of a chamber member from being forgotten when switching the device to a single needle state and performing blood purification treatment.SOLUTION: A blood purification device in which a double needle state and a single needle state can be switched optionally includes: a blood pump 4; a liquid feed amount detection part 11 for detecting a feed amount of liquid by the driving of the blood pump 4; a pressure detection part 6 for detecting pressure in a blood circuit; a chamber member 9 attachable to and detachable from the blood circuit, and connected to an air trap chamber 5 in the single needle state, which causes blood of the blood circuit to flow in and be stored in a blood collection phase for collecting blood from a patient, and causes stored blood to flow out to the blood circuit and be returned in a blood returning phase for returning the blood to the patient; and a connection determination part 12 for determining whether or not the chamber member 9 is connected on the basis of the feed amount of liquid detected by the liquid feed amount detection part 11 and the pressure detected by the pressure detection part 6.SELECTED DRAWING: Figure 2

An inline microgravity air trap device includes an elongate air trap chamber, the air trap chamber having a blind end, an opposite air outlet end containing a gas egress opening, a fluid inlet port connecting to a pressurized fluid supply, a fluid outlet port connecting the air trap chamber to a fluid delivery destination, a filter forming a tube having an interior, a first end at the blind end of the air trap chamber and a second end at the gas egress opening, and a structural insert in the interior of the tube, having a first insert end located at the blind end, and a second insert end located the air outlet end, where the chamber is formed to direct fluid from the pressurized fluid supply to accelerate centrifugally around the filter, forcing gas contained in the fluid to pass through the filter into the interior of the tube.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

The invention relates to an air trapping device. The air trapping device comprises a shell and a bearing mechanism. The shell is provided with a containing cavity, a gas inlet and a gas outlet, the bearing mechanism is arranged in the containing cavity, the bearing mechanism is provided with a plurality of sub-cavities, the sub-cavities communicate with the gas inlet and the gas outlet correspondingly, and the sub-cavities are used for bearing adsorbents. Through the technical scheme provided by the invention, the plurality of sub-chambers can simultaneously adsorb or desorb carbon dioxide, and the thickness of the adsorbent in each sub-chamber is greatly reduced, so that heat does not need to penetrate through the relatively thick overall bearing mechanism and only needs to be transferred in a single sub-chamber, a heat transfer path is remarkably shortened, the temperature gradient in the bearing mechanism is effectively reduced, and the heat transfer efficiency is improved. The bearing mechanism can quickly achieve temperature balance, so that the heating and cooling rates of the adsorbent can be accelerated, the carbon dioxide adsorption and desorption cycle period is remarkably shortened, and the carbon dioxide capture capacity of the air capture device is improved.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

The utility model discloses a water storage assembly and a device comprising the same, the water storage assembly comprises a water container and an impeller pump, the bottom of the water container is provided with a water outlet and an air return port, an inlet of the impeller pump is communicated with the water outlet of the water container, and an outlet of the impeller pump is communicated with the air return port of the water container. And the outlet of the impeller pump is communicated with the air return port of the water container through a control valve. According to the scheme, the water outlet of the water container, the impeller pump, the control valve and the air return opening of the water container are sequentially communicated to form the loop, when the water level in the water container is low or no water exists, the control valve is opened, and water enters the loop through the water outlet of the water container; air in the impeller pump can be discharged into the water container from the air return port through the inlet water, and air trapping of the impeller pump is avoided.

The invention discloses a water mixing system with a frost crack prevention technology, and belongs to the technical field of bathroom hardware. The water mixing system comprises a shell assembly, a water mixing valve is arranged on one side of the shell assembly, and a first water inlet channel, a second water inlet channel and a water mixing channel are formed in the shell assembly; the water outlet side of the first water inlet channel and the water outlet side of the second water inlet channel are communicated with the water mixing valve, the water outlet side of the water mixing valve is communicated with the water inlet side of the water mixing channel, at least one air trapping cavity is formed in the shell assembly, and the volume of the air trapping cavity accounts for 15%-20% of the total volume of the first water inlet channel, the second water inlet channel and the water mixing channel. The air trapping cavity is formed in the shell assembly, sufficient buffer space is provided for frozen and expanded water, the valve body is prevented from being broken from the source, and meanwhile the stability of the water mixing adjusting function is guaranteed.

A direct air capture CO2 system includes a CO2 extraction reactor having a chamber defined by a wall; an air inlet formed in the wall; an air outlet formed in the wall; and shell units defining an internal volume arranged in the chamber, at least some of the shell units having a spherical and / or ellipsoidal shape, each internal volume being at least partially filled with functionalized CO2 adsorbent particles.

The present invention relates to a device and method for capturing carbon dioxide from the atmosphere based on an air separation unit, and relates to the technical field of CO2 capture. The device comprises an air filtration device, a compressor unit, a cooling device, a molecular sieve adsorption group, a gas buffer device, an amine absorption device, a liquid storage device, a first heating device, an amine regeneration device, and a carbon dioxide storage device, which are connected in sequence. The post-adsorption gas phase outlet of the molecular sieve adsorption group is connected to the air inlet of the air separation unit. The first air outlet of the air separation unit is connected to the cooling device via a liquid cooling device and a refrigeration device in sequence. The second air outlet of the air separation unit is connected to the desorbed gas inlet of the molecular sieve adsorption group via a second heating device. The device provided by the present invention uses the molecular sieve adsorption group to adsorb CO2. The adsorbed gas enters the air separation unit to produce high-purity nitrogen and liquid oxygen. The CO2-containing gas enters the amine absorption tower and the amine regeneration tower to obtain high-purity CO2, thereby achieving low-energy consumption and low-waste air capture and production of CO2.

To provide a liquid discharge device, which can suppress air bubble from remaining in a manifold, communicated with a plurality of nozzles arranged along a nozzle arranging direction, whose both end parts are connected to an ink supply hole.SOLUTION: A recording head 30 is provided with: a manifold 103 communicated with a plurality of nozzles opening on a nozzle surface 41; a first air trap chamber 101 communicated with a first end part 103a of the manifold 103 and extended upward from the first end part 103a; a second air trap chamber 102 communicated with a second end part 103b of the manifold 103 and extended upward from the second end part 103b; and a supply flow passage 100 through which the first air trap chamber 101 is communicated with the second air trap chamber 102, which performs purge suction operation by making a cam mechanism selectively open and close a first opening 101a of a first flow passage 100a leading to the first air trap chamber 101 in the supply flow passage 100 and a second opening 105 of a second flow passage 100b leading to the second air trap chamber 102 in the supply flow passage 100.SELECTED DRAWING: Figure 8

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

To provide a blood purification device that simplifies the priming process. [Solution] When priming the blood purifier 120, the arterial air trap chamber 112, and the venous air trap chamber 114, the control unit performs a step of filling the entire blood purifier 120 with priming fluid 20. After this step, while maintaining the state in which the entire blood purifier 120 is filled with priming fluid 20, the control unit performs a step of adjusting the liquid level of the priming fluid 20 in the arterial air trap chamber 112. After this step, while maintaining the state in which the entire blood purifier 120 is filled with priming fluid 20 and the liquid level of the priming fluid 20 in the arterial air trap chamber 112 is adjusted, the control unit performs a step of adjusting the liquid level of the priming fluid 20 in the venous air trap chamber 114.

Disclosed herein is a peritoneal dialysis ("PD") system having an air-assisted pumping sequence. In one embodiment, the PD system includes a housing, a PD fluid pump contained in the housing, an air trap, a fluid line extending from the air trap, a fluid line valve positioned and arranged to operate with the fluid line, a gas line extending from a top of the air trap, and a gas line valve positioned and arranged to operate with the gas line. The system also includes a control unit configured to close the fluid line valve, open the gas line valve, and cause the PD fluid pump to pump gas from the air trap into the gas line after patient drain, forming a pocket of gas in the fluid line and forcing remaining spent PD fluid towards the drain line.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

The utility model discloses a gas trapping prevention structure of a chlorinator, and aims to overcome the defects that gas is generated when the chlorinator works, and when the liquid flow is small, the gas forms a gas group above a pipeline and continuously increases along with the working time, so that the water outlet flow continuously decreases, and the normal use is influenced. The chloridizing device comprises a chloridizing device body, a water outlet is arranged on the chloridizing device body, and the aperture of the water outlet is reduced to form a flushing hole. The aperture of the water outlet of the chlorinator body is reduced to form the flushing hole, so that the water flow speed at the flushing hole can be increased, the air mass is dispersed by the water flow, the air trapping phenomenon generated in a small flow state can be effectively solved, and the normal work of the chlorinator is ensured.

The invention relates to the technical field of natural gas development, in particular to a casing annular air channeling treatment device and method. The casing annular air channeling treatment device comprises a casing assembly, a high-pressure nitrogen pipeline, a closed discharge pipeline, a plugging agent injection pipeline, a fluid injection pipeline and a liquid level detector, the high-pressure nitrogen pipeline, the closed discharge pipeline, the plugging agent injection pipeline, the fluid injection pipeline and the liquid level detector are all communicated with the casing assembly, a high-pressure nitrogen source is arranged at the end of the high-pressure nitrogen pipeline, a closed discharge tank is arranged at the end of the closed discharge pipeline, and an injection pump is arranged at the end of the plugging agent injection pipeline. A fluid injection device is arranged at the end part of the fluid injection pipeline, and a control valve for controlling the on-off of the pipeline is correspondingly arranged in each pipeline. The invention aims to overcome the defect that in the prior art, gas wells with different well conditions cannot adopt a unified treatment device to treat the problem of annular gas channeling in the natural gas development process in time, and provides the casing annular gas channeling treatment device and method, so that the treatment can be performed by adopting a unified method aiming at different gas well conditions, and the treatment efficiency is improved. The treatment cost and the treatment difficulty are greatly reduced.

The present invention relates to the technical field of carbon dioxide capture, and particularly to a preparation method of mesoporous nano-β-Bi2O3 and its application in direct air capture of CO2. The preparation of mesoporous nano-β-Bi2O3 includes the following steps: A. Mix bismuth acetate solution and citric acid to obtain a first solution, and prepare a sodium hydroxide solution without carbon dioxide; B. Mix the first solution and the sodium hydroxide solution, let it stand, filter by suction, wash, dry and calcine to obtain mesoporous nano-β-Bi2O3; The nano-β-Bi2O3 directly captures CO2 in the air and is converted into Bi2O2CO3 through a chemical reaction, and then the adsorption and desorption recycling of CO2 are realized through the decomposition of Bi2O2CO3, and the product gas concentration is greater than 90%. The prepared β-Bi2O3 of the present invention has the advantages of stable physical and chemical properties, greenness, no solvent loss, wide sources of raw materials, etc. At the same time, the present invention can also be used for the synthesis of Bi2O2CO3. The present invention provides a method for preparing nano-β-Bi2O3 and using it for direct air capture of CO2, providing a new way for the direct air capture of CO2 technology.

The utility model discloses a diaphragm pump capable of preventing air trapping in a pump head. The diaphragm pump comprises a transverse pump body, the pump head, a pump seat and a valve seat, the pump seat is connected with the transverse pump body, the pump head cover is mounted on the pump seat, and the valve seat is mounted between the pump seat and the pump head; a water inlet cavity and a water outlet cavity are separated between the pump head and the valve seat; the upper part of the pump head is provided with a water inlet and a water outlet which are longitudinally distributed front and back; the water outlet is communicated with the water outlet cavity; the water inlet communicates with the upper part of the front side of the water inlet cavity; the water outlet cavity and the water inlet cavity are radially distributed inside and outside on a vertical plane, the water inlet cavity is annularly arranged on the periphery of the water outlet cavity, and a partition plate is arranged in the water inlet cavity and blocks communication of an upper area and a lower area, close to the front side of the water inlet, of the water inlet cavity. Due to blocking of the partition plate, inflow water does not directly flow into the lower portion of the front side, but sequentially flows through the upper portion of the rear side and the lower portion of the rear side of the water inlet cavity and then flows to the lower portion of the front side, the situation that air traps in the upper portion of the rear side when the upper portion of the front side and the lower portion of the rear side of the water inlet cavity are filled with water can be avoided, and air trapping of a pump head is prevented.

Systems and methods are providing for detecting and monitoring thoracic fluid, air-trapping and ventilation assessment in real time, wherein data obtained from a non-invasive electrode patch is analyzed using analysis algorithms for an electrical equivalent model that have been personalized for a patient's physiologic characteristics, medical condition and / or historical medical information using machine learning trained on a dataset representative of a large and diverse patient population. The systems and methods provide a simple, real-time, highly sensitive and specific, non-invasive, bedside solution for fluid level assessment, checking for increased air trapping, and ventilation assessment. The described methods include a variety of use cases for the inventive system and methods.

A system for direct air capture is provided The system comprises an at least partially subterranean shaft (2) with an air inlet (3) and an air outlet (4). The air outlet (4) is arranged at a higher topographic elevation than the air inlet (3). The subterranean shaft (2) is configured to facilitate passive air flow from the air inlet (3) to the air outlet (4). At least one CO2 capture module (5) is located within the subterranean shaft (2). A process, utilizing the system (1), for topography assisted direct air capture is also provided. The process allows ambient air to flow through the shaft (2) from the air inlet (3) to the air outlet (4). The air inlet (3) and the air outlet (4) may be open to the atmosphere. The system may comprise an arrangement for storing and / or utilizing the captured CO2.

A dryer is provided that includes a trapping device with improved convenience. The dryer of the present disclosure includes a housing, a receiving tank provided in the housing, an air supply device that supplies air into the receiving tank, a trapping device that traps foreign matter from the air that has passed through the receiving tank, and an air flow path that connects the air supply device, the receiving tank, and the trapping device. The trapping device has an inflow portion that extends from a suction port that is connected to the receiving tank, an upstream-side swirling portion that is connected to the inflow portion and causes the inflowing air to swirl while being supplied in a first direction, a filter screen portion that is provided downstream of the upstream-side swirling portion and has a cylindrical shape that extends around the first direction, an air path portion that surrounds the filter screen portion, a downstream-side swirling portion that is provided at a position where the filter screen portion is aligned in the first direction and has a peripheral surface that extends around the first direction, an end surface that closes an end portion of the peripheral surface of the downstream-side swirling portion, and a recovery portion that is connected to a discharge port provided in the peripheral surface.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device configured to remove air from a fluid and comprising the nozzle.

The present disclosure relates to a lung ventilation, air retention determination method and device, electronic equipment and storage medium, and relates to the technical field of DR image processing. The lung ventilation determination method comprises: acquiring left lung images and right lung images corresponding to a plurality of DR lung images in a breathing process, a plurality of registration transformation matrices in the breathing process, and a preset air threshold interval; using the plurality of registration transformation matrices in the breathing process, performing registration operations on the left lung images and the right lung images corresponding to the plurality of DR lung images respectively to obtain left lung registration images and right lung registration images corresponding to the plurality of DR lung images; and determining lung ventilation regions corresponding to the plurality of DR lung images at multiple moments in the breathing process based on the preset air threshold interval and the left lung registration images and the right lung registration images corresponding to the plurality of DR lung images respectively. The present disclosure can determine lung ventilation.

A blood circuit assembly for a dialysis unit may include an organizing tray, a pair of pneumatic pumps mounted to the organizing tray for circulating blood received from a patient through a circuit including a dialyzer unit and returned to the patient, an air trap mounted to the organizing tray arranged to remove air from blood circulating in the circuit, a pair of dialyzer connections arranged to connect to the inlet and outlet of a dialyzer unit, and a pair of blood line connectors, one inlet blood line connector for receiving blood from the patient and providing blood to the pneumatic pumps and the other outlet blood line connector for returning blood to the patient.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device configured to remove air from a fluid and comprising the nozzle.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device 200 configured to remove air from a fluid and comprising the nozzle.

The invention discloses an exhaust parameter optimization method for an electric hair cutter blade MIM powder metallurgy process mold. The exhaust parameter optimization method comprises the steps that mold core cavity characteristic parameters and electric hair cutter blade tooth model data are collected; acquiring temperature field and pressure field data of the working state of the mold core through a thermal imaging detection device and a pressure sensor, and generating a thermodynamic diagram and a pressure cloud diagram; air trapping points are judged based on image fusion and a gradient analysis algorithm; generating a plurality of exhaust layout schemes including capillary exhaust hole addition and deletion, position adjustment or aperture optimization; calculating cavity pressure field, temperature field change and capillary pore distribution density under each scheme through numerical simulation, and sorting by adopting a weighted comprehensive evaluation algorithm; according to the method, accurate prediction of the air trapping point and intelligent optimization of the exhaust scheme are realized, and the MIM forming quality and the production efficiency of the electric hair cutter blade are effectively improved.