33 results about "Positive pressure breathing" patented technology

A patient interface cushion and specifically a patient interface cushion with fabric, configured to supply pressurized breathing gas to the nasal and oral airways of a user. The patient interface cushion includes a rigid part, configured to support the elastic part, featuring a first opening and a second opening; The elastic part, configured to provide an attachment surface for the fabric part, featuring a third opening in communication with the second opening and a fourth opening allowing the user's nose and mouth to enter the internal cavity of the elastic part. The fabric part, configured to form a sealing area between the lower lip area and the nasal bridge area, featuring a first surface partially connected to the elastic part, a second surface sealing at least a portion of the user's face, and also having an inner edge and an outer edge.

A respiratory device with a containment chamber, configured to deliver pressurized breathable gas to a patient's airway, including a blower configured to generate pressurized breathable gas, a gas passage with at least two chambers, and a casing that houses the gas passage. At least one of the at least two chambers is a containment chamber, the other chambers are at least one flow chamber. The containment chamber communicates with the at least one flow chamber through a neck. When the respiratory device is in use, the airflow substantially does not pass through the containment chamber; the neck is only configured to communicate with the chambers and allows minimal or no airflow through it. Noise enters the containment chamber through the neck and dissipates by resonating with the walls of the chambers, achieving maximal noise reduction for the respiratory device.

A breathing ventilation apparatus (110) is provided that is configured to deliver breathing gas to a patient connection device (170). The breathing ventilation apparatus (110) includes: a gas pressurization unit (210) configured to generate pressurized breathing gas; a gas inlet (112) configured to introduce breathing gas to the breathing ventilation device (110); a gas outlet (111) configured to discharge pressurized breathing gas to the breathing tube (160); a detection module (250) configured to detect a pressure of the pressurized breathing gas; at least one non-volatile memory (150) configured to store a plurality of parameters and a plurality of programs, and one or more controllers. The one or more controllers are configured to activate the respiratory ventilation device (110) and / or to activate a program that continuously reads information from the detection module (250) upon a pilot operation and to control the pressure of the pressurized respiratory gas using the information read from the detection module (250) and the at least one parameter.

A humidification assembly configured to humidify a pressurized respiratory gas is provided. The humidification assembly may include a liquid chamber configured to accommodate one or more liquids, the liquid chamber including a tank and a tank cover. The tank cover includes a shell, a humidification assembly gas inlet port, a humidification assembly gas outlet port, a first gas passage including an output port, and a second gas passage including an input port. The humidification assembly gas inlet port is configured to introduce the pressurized respiratory gas, via the first gas passage, into the tank. The humidification assembly gas outlet port is configured to introduce the humidified and pressurized respiratory gas, via the second gas passage back into a main body of the respiratory ventilation apparatus. The humidification assembly gas inlet port and the humidification assembly gas outlet port are set on a same side surface of the shell.

A system (100) for respiratory therapy may include a pressure generator for a patient respiratory interface that delivers therapy to the user's airway, a user interface, and a controller coupled to the pressure generator configured to operate the generator for the therapy. The controller may be configured to, in a therapy mode, control the generator to deliver the therapy for a therapy session. The controller may be configured to, in a set-up configuration mode, receive an input by the user made on the user interface which corresponds to an adjustment to the parameter(s). The controller, in the set-up mode, may control generation of a user perceivable sensory response in real time or near real time in response to the adjustment to the parameter(s), including controlling the generator to deliver the therapy comprising the pressurized flow of breathable gas to the user's airway based on the received input and corresponding adjustment.

The utility model provides a positive pressure breathing mask, which relates to the technical field of breathing masks, and comprises a mask body, an air inlet pipe is arranged on one side of the mask body, a reinforcing device is arranged on one side of the air inlet pipe, the reinforcing device comprises a frame, a connecting device is arranged between the frame and the air inlet pipe, and the connecting device is connected with the air inlet pipe. Two first threaded holes are symmetrically formed in the surface of the frame, screw rods are in threaded connection with the inner walls of the two first threaded holes, clamping plates are rotationally connected to the close ends of the two screw rods, and a plurality of rubber strips are fixedly connected to the close sides of the two clamping plates; by arranging the reinforcing device, the air pipe can be clamped and limited, the situation that the joint of the air pipe and the air inlet pipe is loosened and the air pipe is separated from the interior of the air inlet pipe to affect oxygen supply due to the fact that the air pipe is pressed to displace when conveying oxygen to the mask body is reduced, and the connection stability of the air pipe and the air inlet pipe is improved.

The invention discloses a quickly-started fire escape and fire-avoiding cabin and a use method thereof, and relates to the technical field of fire-fighting emergency escape equipment, and the quickly-started fire escape and fire-avoiding cabin comprises an expandable fire-avoiding cabin equipment box body; a fire-avoiding cabin rapid opening supporting assembly, a positive pressure oxygen supply breathing system, a human body breathing waste gas absorption circulating system, an emergency survival material storage assembly, a power battery and a communication lighting system are integrated in the box body. A multi-panel movable unfolding structure is adopted in the fire-avoiding cabin equipment box body, the fire-fighting fire-avoiding cabin is of a foldable structure, and second-level rapid unfolding is achieved through a safety linkage mechanism and an inflation supporting frame. According to the invention, when a building fire escape channel is blocked, a closed safe fire-avoiding space can be quickly built, and by matching with a positive pressure breathing guarantee module, an emergency survival material module and an external communication module, quick risk avoiding, safety protection and long-acting rescue waiting are realized; the device is convenient to store, small in occupied space and capable of being flexibly arranged in various places such as high-rise buildings and residences, and the problems that an existing fire risk avoiding device is slow in unfolding, incomplete in protection and poor in adaptability are solved.

A breathing apparatus includes a tank containing pressurized breathing gas, a regulator having an inlet connected to the tank, an outlet for providing breathing gas to a user, and a valve configured for controlling a flow of breathing gas between the inlet and the outlet. A facepiece includes a first port for connecting with the outlet of the regulator, a second port adapted to be connected to an air purifying system, and an exhalation valve. A pneumatic pressure adjustment assembly is in operative connection with the exhalation valve, and has a first pneumatic connection in operative connection with a second pneumatic connection in the regulator. The pneumatic pressure adjustment assembly is operable to adjust the internal facepiece pressure for opening the exhalation valve based on whether breathing gas is delivered to the pneumatic pressure adjustment assembly. An alignment mechanism is provided for aligning the regulator with the facepiece.

The invention discloses a depression treatment device based on acute intermittent hypoxia adenosine induction. The depression treatment device comprises an intermittent hypoxia generator and a positive pressure breathing mask communicated with the intermittent hypoxia generator. The intermittent low-oxygen generator comprises a nitrogen generator and an air compressor; an output pipeline of the nitrogen generator and an output pipeline of the air compressor are converged and then are connected into a breathing air pipe to be communicated with the positive pressure breathing mask; the nitrogen generator provides constant pressure for an output pipeline of the nitrogen generator, and the nitrogen flow of the output pipeline is controlled through a flow valve. The air compressor provides constant pressure for an output pipeline of the air compressor, and a flow valve is adopted to control the air flow of the output pipeline of the air compressor. The pressure of an output pipeline of the nitrogen generator is the same as that of an output pipeline of the air compressor and is higher than ambient atmospheric pressure; the positive pressure breathing mask is provided with a sealing ring attached to the face of the human body. According to the invention, low oxygen-normal oxygen switching can be realized, adenosine generation is induced, and an exact anti-depression treatment effect is obtained.

The patient interface is configured to deliver a flow of pressurized breathing gas to the airways of a patient. The patient interface includes a brace base configured to support the nose of a patient in use. Two protrusions extend from the brace base and are configured to be inserted into the nostrils of a patient in use. Each protrusion has an opening formed therein configured to allow air to continuously flow therethrough. Further, an inflatable base forms a plenum chamber with the brace base. The brace base is configured such that motion of the brace base is decoupled from the inflatable base.

It is an object of the present invention to provide a wire heated tube for a respiratory device.SOLUTION: An air delivery conduit for use in an apparatus for delivering breathable pressurized air includes a tube, a first wire, a second wire, a first cuff, and a second cuff. The first wire extends at least partially between the first end and the second end of the tube. The first wire has a first diameter. The second wire extends at least partially between the first end and the second end. The second wire has a second diameter different from the first diameter. The first cuff is coupled to the first end of the tube. The second cuff is coupled to the second end of the tube and includes a thermistor connected to the first wire and a fastener projecting from an inner surface of the second cuff into a flow path of the supply of pressurized breathing air. The thermistor is housed within the fixture.SELECTED DRAWING: Figure 21

A patient interface, a respiratory pressure treatment device, a humidifier, and an air circuit are disclosed. A patient interface for delivering a pressurized respiratory airflow to an airway of a patient, comprising: an inflatable base capable of being pressurized to a treatment pressure of at least 6 cmH2O higher than ambient air pressure; a seal-forming structure forms a seal with a patient's facial area around and inside the nostril of the patient that, in use, maintains therapeutic pressure in the inflated base throughout the patient's breathing cycle. The seal-forming structure comprises a stent base and a pair of protrusions extending from the stent base, the stent base forming a seal with the nostrils, each protrusion having an opening for delivering a flow of air at a therapeutic pressure to the nostrils in use, each protrusion being inserted or partially inserted into one of the nostrils in use; the stent base is supported on the inflatable base and a portion of the stent base and / or a portion of the inflatable base form one or more folds for decoupling movement of the stent base from the inflatable base.

A patient interface structure includes a cushion configured to sealingly engage the patient's face and a front that is more rigid than the cushion. The cushion includes a forward opening, a rearward opening that is opposite the forward opening and a continuous sealing surface. The continuous sealing surface has a mouth sealing portion configured to seal around the patient's mouth and a nasal sealing portion configured to seal around both of the patient's nasal airways. The front plate includes an air inlet configured to both receive the pressurized respiratory gas and secure headgear to the patient interface structure. In addition, the nasal sealing portion includes at least one aperture that is separate from the rearward opening. Also, the front plate, the mouth sealing portion and the nasal sealing portion together form a common chamber.

The present invention relates to a positive pressure breathing full face mask and a positive pressure respirator, comprising: a face window covering the face; an oronasal mask covering the mouth and nose; an air supply valve connected to the oronasal mask; an exhalation valve connected to the oronasal mask; an annular sealing ring provided at the edge of the face window and having a slot; a sealing airbag provided in the slot for pressing the temples of the glasses against the face and forming a seal with the face; an airbag inflation port provided on the sealing airbag; and a pressure relief hole provided on the inner side of the sealing airbag for releasing gas into the facial area covered by the face window to form a positive pressure environment. The present invention utilizes the inflated sealing airbag to press the temples of the glasses against the face and fill the gap between the temples of the glasses and the face, thereby forming a complete seal between the full face mask and the face. Simultaneously, the pressure relief hole releases gas into the facial area covered by the face window, thereby forming a positive pressure environment in the facial area covered by the face window relative to the external area, greatly reducing the risk of toxic gases infiltrating into the facial area covered by the face window.

A respiratory device with a containment chamber, configured to deliver pressurized breathable gas to a patient's airway, including a blower configured to generate pressurized breathable gas, a gas passage with at least two chambers, and a casing that houses the gas passage. At least one of the at least two chambers is a containment chamber, the other chambers are at least one flow chamber. The containment chamber communicates with the at least one flow chamber through a neck. When the respiratory device is in use, the airflow substantially does not pass through the containment chamber; the neck is only configured to communicate with the chambers and allows minimal or no airflow through it. Noise enters the containment chamber through the neck and dissipates by resonating with the walls of the chambers, achieving maximal noise reduction for the respiratory device.

A mechanical ventilator may include an oscillating flow controller and a respiratory interface fluidly connected to a bi-directional fluid port of the oscillating flow controller. The mechanical ventilator may be connected to a source of pressurized breathing air. Breathing air from the source of pressurized breathing air may drive the oscillating flow controller to periodically change state according to a predetermined cycle emulating a predetermined breathing pattern. The same breathing air may be provided to a user according to the predetermined cycle.

The application discloses a kind of based on acute intermittent hypoxia adenosine induction depression treatment device, including intermittent hypoxia generator and with its communication positive pressure breathing mask;The intermittent hypoxia generator includes nitrogen generator, air compressor;The output line of the nitrogen generator is merged with the output line of the air compressor and then connected to breathing air pipe, and the positive pressure breathing mask is communicated;The nitrogen generator provides constant pressure for its output line, and the nitrogen flow of its output line is controlled using flow valve;The air compressor provides constant pressure for its output line, and the air flow of its output line is controlled using flow valve;The output line pressure of the nitrogen generator is the same as the output line pressure of the air compressor and higher than ambient atmospheric pressure;The positive pressure breathing mask has sealing ring that fits human face.The present application can realize low oxygen-normal oxygen switching, induce adenosine generation, and obtain exact antidepressant treatment effect.

Disclosed is an autoCPAP respirator which comprises a control unit, a respiration blower and a pressure sensor. The control unit comprises a controller for generating a first control signal, which induces the speed of the blower to generate a pressurized breathing gas flow, a controller for generating a periodically variable control signal, which activates the blower such that the speed of the blower varies in an oscillating manner at a frequency in the range of 1-20 Hz, and a sensor device, which ascertains one or more of instantaneous speed, instantaneous electrical current and instantaneous electrical power of the blower to determine the breathing gas flow and / or breathing gas volume generated by the blower while using characteristic data of the blower stored in a memory.

The invention relates to the technical field of gas separation and intelligent control, in particular to a hollow fiber membrane nitrogen-oxygen gas separation and mixed gas intelligent regulation and control device which is characterized in that an air pretreatment module outputs pure stable-pressure compressed air; the hollow fiber membrane separation module is used for separating high-concentration nitrogen and high-concentration oxygen through gas permeation rate differences of different hollow fiber membranes; the gas mixing module receives high-concentration nitrogen and high-concentration oxygen, the high-concentration nitrogen and the high-concentration oxygen are uniformly mixed according to a preset proportion, and nitrogen-oxygen mixed gas meeting training requirements is generated; the expiration resistance adjusting module provides adjustable expiration confrontation resistance for training and adapts to two training modes of normal-pressure breathing and pressurized breathing. The intelligent control module collects operation parameters of all modules of the device, and gas concentration, flow and pressure requirements required by training are matched through a precise regulation and control algorithm. The gas path system is used for connecting all functional modules to guarantee stable transmission of gas. Therefore, the problems that in the prior art, air source dependence is high, and bottled air sources need to be replaced frequently in training are solved.

The application relates to the field of oxygen generators, in particular to a high-flow oxygen production and oxygen therapy integrated machine and a micro-positive-pressure breathing mask, which comprises an oxygen source, a warming and humidifying module and a micro-positive-pressure breathing mask; a plurality of electromagnetic valves, a plurality of pressure regulating valves, an oxygen outlet pipeline and an atomization outlet pipeline are arranged on the oxygen gas pipeline of the oxygen source; the warming and humidifying module is provided with an oxygen self-adaptive flow valve, a high-flow gas pipeline, an oxygen and clean air mixing bin, a clean air booster turbine fan, a flow sensor, an oxygen concentration sensor, a first pressure sensor, a liquid level sensing device, a temperature and humidity sensor, a warming and breathing pipeline and a micro-positive-pressure breathing mask provided with a second pressure sensor; the oxygen source gas pipeline comprises a first oxygen source pipeline, a second oxygen source pipeline, a merging pipeline and a backblowing pipeline; the first oxygen source pipeline or the second oxygen source pipeline gas pipeline branch forms an oxygen gas pipeline to the oxygen outlet pipeline and the atomization outlet pipeline; the oxygen gas pipeline and the atomization outlet pipeline are respectively provided with electromagnetic valves.

A humidification assembly and a respiratory ventilation apparatus are provided. The humidification assembly is for humidifying pressurized breathing gas provided by a respiratory ventilation apparatus, the humidification assembly comprising a liquid chamber for containing one or more liquids, the liquid chamber comprising a tank, a tank lid, the tank lid comprising a first gas passage, a second gas passage, a humidification assembly gas inlet configured to introduce the pressurized breathing gas into the tank via the first gas passage, and a humidification assembly gas outlet configured to introduce humidified and pressurized breathing gas out of the tank via the second gas passage.

The invention relates to the technical field of ventilation treatment, and discloses a humidifying assembly and breathing ventilation equipment, and the humidifying assembly is configured to humidify pressurized breathing gas from the breathing ventilation equipment. The humidification assembly comprises a liquid chamber configured to contain one or more liquids, wherein the liquid chamber comprises a box body, a box cover, a humidification assembly gas inlet and a humidification assembly gas outlet; the humidifying assembly gas inlet is configured to introduce pressurized breathing gas into the box body through a first gas channel, and the first gas channel comprises an outlet; the humidification assembly gas outlet is configured to direct humidified and pressurized breathing gas back into the body of the breathing ventilation device via a second gas channel, wherein the second gas channel includes an inlet. The box cover comprises a baffle, and the baffle is used for separating the humidifying assembly gas inlet and the humidifying assembly gas outlet, so that breathing gas flowing into the box cover can be isolated from breathing gas flowing out of the box cover.

The invention discloses an isolated quick-wearing type compressed oxygen self-rescuer, and relates to the technical field of oxygen self-rescuers, the isolated quick-wearing type compressed oxygen self-rescuer comprises a lower shell and an oxygen bottle, and further comprises an oxygen inhalation assembly; the oxygen inhalation assembly comprises a mask and an air bag; the air bag is a hollow PVC bag body, an air inlet is formed in the portion, close to the oxygen bottle, of the air bag, and an exhaust valve is fixed to the air bag and is a one-way valve. A manual-electric integrated valve is fixed on the oxygen bottle, the manual-electric integrated valve is used for controlling the air output in the oxygen bottle, and the manual-electric integrated valve is detachably and hermetically connected with the air inlet of the air bag; a breathing opening is formed in the mask, an air feeding pipe is fixed to the position, close to the air bag, of the breathing opening in an airtight mode, a fixing plate is fixed to the unoccupied end of the air feeding pipe in an airtight mode, and the mask is located at the mouth and nose position and tightly attached to the face skin. The fixing plate extends into the air bag; an oxygen-enriched and positive-pressure breathing environment can be created for the face of an unconscious person, the most precious time is won for waiting for rescue, and the survival probability of miners is increased.

This invention discloses a non-invasive positive pressure ventilation device for small animals, comprising a positive pressure breathing chamber, an animal restraint, and a positive pressure ventilator. The animal restraint includes an animal restraint bottle and a neck sealing strap, with the animal restraint bottle placed inside the positive pressure breathing chamber. The neck sealing strap is fixed to one side of the opening of the animal restraint bottle. The positive pressure ventilator is connected to the positive pressure breathing chamber. This invention achieves non-invasive positive pressure ventilation: it can explore the effects of non-invasive positive pressure ventilation on the structure and function of the airway and lungs in animals, and can well simulate the changes in airway and alveolar structure, function, and various mechanisms during long-term use of a non-invasive ventilator in patients with chronic respiratory failure. Furthermore, it achieves long-term positive pressure ventilation: it enables animals to receive positive pressure ventilation for extended periods, allowing them to receive several hours of positive pressure ventilation daily and achieve spontaneous breathing for several hours each day, accurately simulating an animal model of long-term non-invasive positive pressure ventilation in patients with chronic obstructive pulmonary disease and chronic respiratory failure.

The invention belongs to the technical field of safety and protection, and relates to a refrigerating fire-fighting waistcoat based on a positive pressure type fire-fighting respirator. A traditional ice bag vest for firefighters has the defects of weight and activity limitation, poor comfort and safety, high maintenance and reuse cost, insufficient compatibility with firefighter uniform and the like. The specific structure of the fire-fighting waistcoat capable of refrigerating comprises a compressed air tank, a carbon fiber porous silicon heat insulation shell, a gas expansion chamber and the like. The working principle is that a water path in the fire-fighting waistcoat is cooled by using a gas expansion heat absorption principle so as to reduce the body temperature of a firefighter. The compressed air tank can contain 13.6 L of compressed air with the pressure of 30 Mpa, the alarm pressure is 5.5 Mpa, and the working time is about 20 minutes. Through calculation, the compressed air in the tank can absorb 697032 J heat from the working air pressure to the alarm air pressure, the waistcoat can be kept for about 11 minutes in the environment of 600 DEG C to stabilize 1 L of water at 20 DEG C, the waistcoat can be theoretically kept for about 40 minutes in the environment of 300 DEG C, and the specific duration needs to be tested for multiple times in a laboratory. The vest has the advantages that the positive pressure type respirator expands to absorb heat when releasing gas in the compression bottle, cooling of a water way in the vest is achieved, high-temperature heating of firemen is reduced, frostbite cannot be caused by uniform heat absorption, precooling does not need to depend on a refrigerator or a low-temperature environment, and the defect that a traditional ice bag vest is large in weight is further overcome to a certain degree.

A humidification assembly configured to humidify a pressurized respiratory gas is provided. The humidification assembly may include a liquid chamber configured to accommodate one or more liquids, the liquid chamber including a tank and a tank cover. The tank cover includes a shell, a humidification assembly gas inlet port, a humidification assembly gas outlet port, a first gas passage including an output port, and a second gas passage including an input port. The humidification assembly gas inlet port is configured to introduce the pressurized respiratory gas, via the first gas passage, into the tank. The humidification assembly gas outlet port is configured to introduce the humidified and pressurized respiratory gas, via the second gas passage back into a main body of the respiratory ventilation apparatus. The humidification assembly gas inlet port and the humidification assembly gas outlet port are set on a same side surface of the shell.

A humidification assembly configured to humidify a pressurized respiratory gas is provided. The humidification assembly may include a liquid chamber configured to accommodate one or more liquids, the liquid chamber including a tank and a tank cover. The tank cover includes a shell, a humidification assembly gas inlet port, a humidification assembly gas outlet port, a first gas passage including an output port, and a second gas passage including an input port. The humidification assembly gas inlet port is configured to introduce the pressurized respiratory gas, via the first gas passage, into the tank. The humidification assembly gas outlet port is configured to introduce the humidified and pressurized respiratory gas, via the second gas passage back into a main body of the respiratory ventilation apparatus. The humidification assembly gas inlet port and the humidification assembly gas outlet port are set on a same side surface of the shell.

The invention relates to the technical field of ventilation treatment, and discloses a humidifying assembly and breathing ventilation equipment, and a liquid chamber in the humidifying assembly comprises a box body, a box cover, a humidifying assembly gas inlet and a humidifying assembly gas outlet. The humidification assembly gas inlet is arranged to introduce pressurized breathing gas into the liquid chamber via a first gas channel, wherein the first gas channel comprises an outlet; a gas outlet of the humidifying assembly is arranged to lead humidified pressurized breathing gas into a main body of the breathing ventilation equipment through a second gas channel, and the second gas channel comprises an inlet; the tank cover comprises a structure for preventing liquid in the tank body from entering the main body.

This invention relates to the field of emergency firefighting technology and discloses an integrated emergency firefighting platform, comprising a housing. Inside the housing are cabinets for storing fire extinguishers and positive pressure breathing apparatus (PPBA) units, each containing a PBA unit. A warning sign is rotatably connected to the top of the housing. Inside the housing are also a fire gravel box and cabinets for storing pressurized fire hoses and air compressors, with an air compressor fixedly connected inside the pressurized fire hose and air compressor cabinets. This invention achieves an integrated structure for firefighting supplies, enabling rapid retrieval of emergency materials. It eliminates the need to store emergency firefighting supplies at well site entrances and exits, improves on-site emergency management, and reduces employee workload.

A system for delivering breathing gas to passengers includes:a face mask including a face part having a breathing cavity,a tube configured to be supplied by pressurized breathing gas, anda reservoir bag disposed between the tube and the face part. A passage connects the reservoir bag to the breathing cavity so that the system is configured to supply the breathing cavity through the reservoir bag. The reservoir bag includes a front portion and a back portion. The front portion is connected to the face mask, and the system has a stowed configuration and a deployed configuration. In the stowed configuration, the reservoir bag is maintained folded between a backing and the face part.