38 results about "Positive pressure breathing" patented technology

A system is provided for delivering a flow of breathing gas to an airway of a patient. The system includes a pressurizing flow module that generates a pressurized flow of breathing gas and a patient circuit coupled to the pressurizing flow module configured to communicate the flow of breathing gas to an airway of a patient. The system includes a sensor for monitoring a characteristic of a breathing pattern of the patient a controller that communicates with the sensor configured to increase a fraction of inspired carbon dioxide if the characteristic exceeds an upper threshold value and to provide servo-ventilation if the characteristic is less than a lower threshold value. The upper threshold value and the lower threshold value are changed based on the monitored characteristic of the breathing pattern of the patient.

The present invention relates to a nasal respiratory mask system comprising: a nasal mask that is tightly attached to the face of a user and serves as means for leading positive-pressure breathing gas to the nose of the user, a frame to keep the nasal mask at a predetermined position, and a headgear that is mounted on the head in order to attach the nasal mask tightly to the face; wherein, the headgear comprises, on the tip thereof, a headgear strap for adjusting the length of the headgear, the headgear strap comprises a headgear fastener that serves as means for connection / disconnection with the frame, the frame comprises a fastener catch that engages with the headgear fastener, and the fastener catch comprises an axisymmetric guide whose (rotation) axis is the insertion direction of the headgear fastener. The present invention provides a nasal respiratory mask system with which a headgear can be easily connected at the beginning of wearing, twisting of the headgear during wearing is prevented, and disassembly upon daily washing is easy.

The present invention relates to a nasal respiratory mask system comprising: a nasal mask that is tightly attached to the face of a user and serves as means for leading positive-pressure breathing gas to the nose of the user, a frame to keep the nasal mask at a predetermined position, and a headgear that is mounted on the head in order to attach the nasal mask tightly to the face; wherein, the headgear comprises, on the tip thereof, a headgear strap for adjusting the length of the headgear, the headgear strap comprises a headgear fastener that serves as means for connection / disconnection with the frame, the frame comprises a fastener catch that engages with the headgear fastener, and the fastener catch comprises an axisymmetric guide whose (rotation) axis is the insertion direction of the headgear fastener. The present invention provides a nasal respiratory mask system with which a headgear can be easily connected at the beginning of wearing, twisting of the headgear during wearing is prevented, and disassembly upon daily washing is easy.

A portable positive pressure breathing apparatus includes a demand valve with a supply inlet port adapted to be connected to a pressurized source of oxygen and an outlet port adapted to be connected to the inlet of a patient's breathing appliance. The demand valve further includes a reference chamber and a valve assembly responsive to the reference chamber / appliance inlet pressure differential for connecting / disconnecting the inlet port to and from the outlet port. At least one manually adjustable back pressure regulator is connected to the pressure source and the reference chamber for setting the pressure in the reference chamber (and inlet to the breathing appliance) at a selected level above atmospheric pressure.

A method for the detection and treatment of disordered breathing during sleep employs an artificial neural network (ANN) in which data related to breathing gas flow are analyzed. A respiratory circuit is established by connecting the patient to a continuous positive airway pressure (CPAP) system with pressurized breathing gas supply, the gas flow in the circuit is periodically sampled, one or several cepstrum parameters distinctive of various breathing patterns are periodically calculated; the parameter values are periodically fed to an ANN trained to recognize breathing patterns characteristic of sleep disordered breathing and are analyzed in the network, the CPAP pressurized breathing gas supply is controlled in response to the ANN output. Also disclosed is a corresponding apparatus.

The demand regulator has a duct communicating a pressurized breathing gas admission with a tube connected to the inside of a breathing mask. Dilution air may be added to the breathing gas. A breathe-out valve opens from the tube to atmosphere. A manual control member has a normal position causing operation without an over pressure above atmosphere and with dilution and an emergency position causing the tube to be fed with pure breathing gas (typically oxygen) at high pressure. Operation with over pressure gas feed is prevented mechanically or pneumatically so long as the mask is being stored.

A vigorous air machine is used for achieving a circulation positive pressure breathing air conditioner, outdoor aerobic air is subjected to washing filtering and dust falling and removing, and virus removing and sterilizing are synchronously conducted. Anti-virus sterilization Chinese and western medicine materials are added in filter hydrolysate so as to achieve the using function of the vigorous air technology, the vigorous air is guided into the relatively fixed working and using area through assistance of a pipeline draught fan, and accordingly the vigorous air machine is applicable to workers in market business and service areas, workers beside public environment office tables or indoor workers, machine tool and assembly line operators, students, old people, pregnant women and infants living in relatively fixed areas for constant-temperature air blowing and vigorous air exhalation, and then the vigorous air is guided in for positive pressure breathing usage. Positive pressure breathing usage is different from indoor usage under the closed condition but can also achieve the same safe and actual breathing health protection function and effect, the working and living groups do not inhale virus gas or inhale little harmful gas under the relative indoor and outdoor harmful gas work environment, and working and living breathing safety and health of people are protected.

A tubing assembly for use in providing a flow of positive pressure breathing gas to a patient. The tubing assembly includes a manifold portion structured to receive the flow of positive pressure breathing gas, a number of tubular portions which each extend from the manifold portion to a distal end which is structured to be coupled to a patient interface for use in delivering the flow of positive pressure breathing gas to the patient, and a reflectance pulse oximetry sensor positioned in or on one of the number of tubular portions. The sensor is structured to be disposed adjacent the patient when the tubing assembly is disposed on the patient for determining blood oxygen saturation levels of the patient.

The invention discloses a pressure adjustment method and system of a positive-pressure breathing therapy machine. The pressure adjustment method includes monitoring whether a patient's body posture changes or not; generating body posture change information if with changes; determining output pressure of the positive-pressure breathing therapy machine according to the body posture change information. By monitoring the body posture change information of the patient, therapy pressure output by the positive-pressure breathing therapy machine can be automatically adjusted in time according to changes of body posture of the patient. Accordingly, the optimal therapy pressure of the positive-pressure breathing therapy machine can be adjusted when the posture of the patient changes in sleeping, the problem of long time in therapy pressure adjustment of the positive-pressure breathing therapy machine in the prior art is thoroughly solved, compliance with therapy effect and therapy is greatly improved, and use experience of the patient is remarkably improved.

The invention relates to positive pressure breathing equipment. The positive pressure breathing equipment comprises a gas channel, a hydrogen production device, a pressurizing device, a mixing device,an atomizing device, an output device and an output device. The hydrogen production device, the pressurizing device, the mixing device, the atomizing device and the output device are all coupled withthe gas channel. The hydrogen production device is used for electrolyzing electrolyzed water to generate hydrogen-containing gas. The pressurizing device can selectively accelerate external gas to generate accelerated gas. The mixing device is used for mixing the hydrogen-containing gas with the accelerated gas to generate positive pressure gas. The atomizing device is used for selectively generating atomizing gas. The output device is used for selectively outputting the hydrogen-containing gas, the positive pressure gas, the hydrogen-containing gas and the atomizing gas or the positive pressure gas and the atomizing gas. Therefore, the breathing device can be matched with the breathing frequency of a user, positive-pressure air is generated by the breathing device in the inspiration period and enters the lung of the patient through the gas channel, and the lung is expanded. The positive pressure does not need to be generated during expiration, the tail end of a breathing pipeline isopened outwards, and gas is automatically exhausted.

The invention provides a medical positive pressure breathing hood, and belongs to the field of medical product manufacturing. The medical positive pressure breathing hood comprises a spherical transparent hood body, an air inlet pipe and an exhaust baffle; a wearing opening is formed in the bottom of the transparent hood body, a sealing skirt plate is arranged at the edge of the wearing opening, the exhaust baffle is installed at the top of the transparent hood body, a filtering net is arranged in the exhaust baffle, a dispersion pipe is arranged in the transparent hood body, a plurality of air inlet nozzles facing the human nose and mouth are formed in the dispersion pipe, one end of the air inlet pipe is inserted into the transparent hood body, and an air inlet fan is arranged at the other end of the air inlet pipe; and the air inlet pipe is inserted into the transparent hood body and is connected with the dispersion pipe. According to the medical positive pressure breathing hood, the introduced air is sprayed at the human mouth and nose, breathing is more fresh and natural, the water mist corresponding to the face on the transparent hood body can be effectively dried to avoid blocking the sight; and in addition, the exhaust gas generated by the medical positive pressure breathing hood is discharged through the top of the transparent hood body, and the heat in the hood can betaken away.

The invention discloses a flame-retardant silicone rubber material, prepared from the following component in parts by weight: 100 parts of silicone rubber, 10-30 parts of antimony trioxide, 20-50 parts of decabromodiphenyl ether, 2-10 parts of DCP and 5-15 parts of zinc stearate. The silicone rubber adopted by the flame-retardant silicone rubber material ensures the chemical protective properties of the material and simultaneously meets the flame-retardant standard in GA 124-2004 'Fire air positive pressure breathing apparatus'. As a mask material for new generation industrial gas masks, a gas mask utilizing the material can meet the chemical protective properties as well as improve the flame-retardant properties, thereby having a wider range of application.

The invention provides a pretreatment agent and pretreatment method for oil-gas-workplace-station organic waste gas. The pretreatment agent is prepared from, by weight, 50%-55% of diglycolamine, 20%-25% of diglycol, 20%-25% of glycerol and 0.5%-1.0% of sodium citrate. The pretreatment method includes the steps that the pretreatment agent is added into a pretreatment container, and a positive-pressure breathing valve of the pretreatment container is opened; an air dissolving pump of the pretreatment container is opened, air is blown into the pretreatment agent, and the pretreatment agent is inthe fluidized state; to-be-pretreated organic waste gas is introduced into the pretreatment agent, and is in contact with the pretreatment agent, and organic waste gas after treatment flows into a following treatment device from the positive-pressure breathing valve. According to the pretreatment agent and pretreatment method, the treatability and the treatment efficiency of organic waste gas arewholly improved, and the treatment cost is reduced.

The invention discloses a supraglottic upper airway device allowing non-invasive endotracheal intubation, and a respiratory tract management device capable of positive pressure breathing and spontaneous breathing. The supraglottic upper airway device includes a piping system, an airbag, and a base. The piping system comprises a ventilation duct arranged in parallel and an optional optical fiber mirror duct, the ventilation duct is a hollow duct with both ends open, and the bottom wall of the distal end of the ventilation duct is provided with an extension sheet of the ventilation duct. The base part comprises a base plate and a drainage tube ring, wherein the drainage tube ring is composed of an esophageal drainage tube and a second drainage tube. The esophageal drainage tube and the second drainage tube are arranged in parallel with the duct system. The invention provides a simple and easy-to-use upper glottic respiratory tract device and a non-invasive tracheal intubation.

An automatic positive pressure breathing apparatus is provided, applicable to connect an upper respiratory tract of a user, which includes a gas generator, a gas flow sensing device, a humidification device, a heating device, a breathing tube, and a mask device. The gas generator includes a signal processing module and a filter. Wherein the signal processing module includes a control circuit and the filter is embedded in the gas generator. The first connecting end of the gas flow sensing device is positioned at one end of the gas flow sensing device and is connected to one side of the gas generator. The second connecting end is positioned at the other end of the gas flow sensing device. The gas flow sensing device includes a first pressure sensing element, a second pressure sensing element, and a radial structure.

A breathing-air tank pressure tracking system includes a housing having lights mounted therein. The lights are spaced-apart from one another and disposed along a line. A pressure sensor is coupled to a tank containing pressurized breathing air. The pressure sensor detects a pressure of the pressurized breathing air and produces a signal indicative thereof. The housing is configured to be coupled to an exterior portion of a dive helmet wherein the lights are positioned in a field-of-view of a user wearing the dive helmet. A controller, mounted in the housing, is coupled to the pressure sensor and the lights. The controller activates selected ones of the lights based on the signal received from the pressure sensor.

The invention discloses a household portable OSAHS early warning detection device which comprises a polysleep monitor body, a breathing assembly, a furling assembly, a charging hole, a display screen, a key, a microphone, a battery module, a single chip microcomputer, a wireless transmission module, a heart rate sensor, an electrocardio sensor, an electroencephalogram sensor, an eye movement sensor, a snore detector, a limb movement sensor and a storage module. A display screen is installed on one side of the polysleep monitor body, keys are installed on the outer wall, located on one side of the display screen, of the polysleep monitor body, and a charging hole is formed in the outer wall, located below the keys, of the polysleep monitor body; by means of the winding assembly, a cable can be wound conveniently, the situation that the cable is knotted and crossed is avoided, meanwhile, the service life of the equipment is prolonged, by means of the breathing assembly, when the patient is difficult to breathe, the patient can breathe normally through the positive pressure breathing machine, and the safety of the patient is protected.

An inspiratory resistor valve system (IRV) to regulate intrathoracic pressure during positive pressure breathing, spontaneous inspirations, and CPR may include an inspiratory port. The IRV system may include patient port. The IRV system may include a separate expiratory port. The IRV may include a plurality of atmospheric pressure sensitive valves. The plurality of atmospheric pressure sensitive valves may isolate the expiratory port and the inspiratory port from one another.

The invention discloses a replaceable forehead pad for a positive pressure breathing mask. The replaceable forehead pad comprises a substrate part, a support part and a buckling body; the substrate part is provided with two contact sheet bodies and a connection arm which is used for connecting two contact sheet bodies; the support part is provided with two support bodies and a plate arm which is connected with the two support bodies; a hollow area is formed among the support bodies, the plate arm and the contact sheet bodies and a hollow hole is formed on each support body to ensure that the support bodies can be flexibly compressed to be deformed; the buckling body is extended from the surfaces of two support bodies and the plate arm, and the long side of the buckling body is longer than the long side of the formed hollow area; the buckling body is provided with buckling parts; the buckling parts, and buckled parts of a mask device of the positive pressure breathing mask can be buckled and assembled; therefore, the replaceable forehead pad can be buckled conveniently and reduce the falling risk, and structural intensity and stress dispersing can be enhanced so as to reduce stress discomfort.

A breathing assistance device may include a turbine for generating flow of pressurized respiratory gas, a duct for carrying pressurized gas to a patient, and a mechanism to control gas pressure capable of elaborating a pressure setting for the turbine. The turbine is connected to a speed sensor for acquiring the rotation speed of a rotating element of the turbine. A mechanism controls a calculation in order to elaborate a pressure setting and to send the pressure setting to the turbine. A method regulates the pressure of a respiratory gas delivered by a turbine to a patient. The method involves elaborating a pressure setting for the turbine. The pressure setting is elaborated using a signal representative of the rotation speed of a rotating element of the turbine.

A filter assembly for filtering a flow of incoming air entering a pressurized breathing gas system includes a filter housing and a filter media. The filter media includes a filtering section and a non-filtering section. The filter housing is structured to be inserted within a pressure generating device used in the pressurized breathing gas system. The filtering section is disposed within the filter housing and is structured to filter contaminant matter from the flow of incoming air. The non-filtering section is disposed outside of the housing and is structured to be separated from the filtering section so as to not make contact with the flow of incoming air. The filtering section and the non-filtering section are structured to be visually compared to one another such that a contaminant matter saturation level of the filter media can be determined.

A medical device measures a pressure of a pressurized breathing gas and includes a pressure sensor arranged at a point of measurement and measures the pressure of a sample gas at a sampling point. The sampling point and the point of measurement are connected by a pressure sampling tube in which a pressure wave of the sample gas can propagate from the sampling point to the point of measurement. The tube has a sampling tube volume and an acoustic impedance. The device further includes a damping arrangement fluidly communicating with the tube. The damping arrangement includes a flow restrictor and a receptor chamber arrangement. The receptor arrangement includes a receptor chamber which receives the pressure wave. The restrictor correlates to the acoustic impedance to prevent acoustic resonance in the tube. The receptor chamber correlates at least to the tube volume to prevent acoustic resonance in the tube.

An inspiratory resistor valve system (IRV) to regulate intrathoracic pressure during positive pressure breathing, spontaneous inspirations, and CPR may include an inspiratory port. The IRV system may include patient port. The IRV system may include a separate expiratory port. The IRV may include a plurality of atmospheric pressure sensitive valves. The plurality of atmospheric pressure sensitive valves may isolate the expiratory port and the inspiratory port from one another.

A method of managing secretions of an intubated patient through an endotracheal tube (2) associated externally to an inflatable cuff (3), the method comprising: inflating the inflatable cuff (3) to place the patient (P) The bronchopulmonary region of the trachea is isolated from the external environment; a series of overpressures (P1, P2) are generated inside the endotracheal tube (2) to induce breathing in the patient; and during the generation of one of the overpressures (P1, P2), The inflatable cuff (3) is deflated in order to allow secretions (S) produced by the patient (P) to drain externally along the trachea.

A system (10) for delivering breathing gas to a passenger, the system comprising:-a mask (30) comprising a face portion (20) having a breathing lumen (34); -a tube (4B) configured to be supplied with a pressurized breathing gas; and-a gas pocket (40) disposed between the tube (4B) and the facial portion (20), a passage (35) connecting the gas pocket (40) to the breathing chamber (34) such that the system is configured to supply the breathing chamber (34) via the gas pocket (40), the gas pocket (40) comprising a front portion (40a) connected to the mask (30) and a rear portion (40b) connected to the front portion (40a), the front portion (40b) being connected to the rear portion (40b). The system has a stowed configuration in which the gas pocket (40) remains folded between the backing (50) and the face portion (20), and an expanded configuration in which the gas pocket (40) remains folded between the backing (50) and the face portion (20).

A headgear for use with a patient interface for providing a flow of pressurized breathing gas to the airway of a patient is produced from straps with a fit adjustment mechanism that incorporates a slide-through design using slots cut into the straps. The slide-through design eliminates pressure points that can result from hardware and facilitates easier adjustments by patients with dexterity issues.

The invention discloses a replaceable forehead pad for a positive pressure breathing mask. The replaceable forehead pad comprises a substrate part, a support part and a buckling body; the substrate part is provided with two contact sheet bodies and a connection arm which is used for connecting two contact sheet bodies; the support part is provided with two support bodies and a plate arm which is connected with the two support bodies; a hollow area is formed among the support bodies, the plate arm and the contact sheet bodies and a hollow hole is formed on each support body to ensure that the support bodies can be flexibly compressed to be deformed; the buckling body is extended from the surfaces of two support bodies and the plate arm, and the long side of the buckling body is longer than the long side of the formed hollow area; the buckling body is provided with buckling parts; the buckling parts, and buckled parts of a mask device of the positive pressure breathing mask can be buckled and assembled; therefore, the replaceable forehead pad can be buckled conveniently and reduce the falling risk, and structural intensity and stress dispersing can be enhanced so as to reduce stress discomfort.

The invention discloses a snoring detection method, a snoring detection device and a positive pressure breathing machine. The snoring sound detection method includes the following steps: obtaining a high-frequency signal corresponding to a snoring event range in a breathing signal of a current breathing process; converting the high-frequency signal into a low-frequency signal; judging that the low-frequency signal Whether the value of is greater than the preset threshold; if so, it is determined that a snoring event occurs in the current breathing process. The snoring sound detection solution of the present invention converts high-frequency signals into relatively slow-changing low-frequency signals, which can reduce the influence of noise on snoring sound recognition and improve the accuracy of snoring sound recognition.

The present disclosure relates to a medical pressure measuring device (100) for measuring a pressure of a pressurized breathing gas supplied to a subject by a breathing apparatus (200). The device (100) comprises a pressure sensor (110) arranged at a point of measurement (195) and configured to measure the pressure of a sample gas at a sampling point (190). The sampling point (190) and the point of measurement (195) are connected by a pressure sampling tube (180) in which a pressure wave of the sample gas can propagate from the sampling point (190) to the point of measurement (195). The pressure sampling tube (180) has a sampling tube volume and an acoustic impedance.The medical pressure measuring device (100) further comprises a damping arrangement (120) arranged to be brought into fluid communication with the pressure sampling tube (180). The damping arrangement (120) comprises a flow restrictor (130) and a receptor chamber arrangement (140). The receptor chamber arrangement (140) comprises a receptor chamber (141). The receptor chamber arrangement (140) is an arrangement for receiving the pressure wave of the sample gas. The flow restrictor (130) correlates to the acoustic impedance of the pressure sampling tube (180) so as to prevent acoustic resonance in the pressure sampling tube (180). The receptor chamber (141) correlates at least to the volume of the pressure sampling tube (180), so as to prevent acoustic resonance in the pressure sampling tube (180).

The disposable positive pressure breathing isolation system as one medical protecting apparatus consists of sealed helmet with non-return valve in the upper part, breathing inlet hose to the helmet connected via reducing valve to the oxygen source, eye shield of transparent material in the helmet, and inside self-adhesive layer in the position corresponding to shoulders. The present invention has the beneficial effects of cutting off respiratory tract infection route to the medical workers by means of no use of the pollutant air, matching with available isolating utensils, low cost for being once used only, and making the user comfortable, cool and no fog formed in the eye shield.