157 results about "Asphyxia" patented technology

An elbow assembly for a mask assembly includes an anti-asphyxia valve (AAV) assembly that may take the form of a box-like frame work, a drop-in arrangement, or a slot-in arrangement. In each case, the AAV assembly may include a flap element which is movable so as to either direct ambient gas/air to the elbow assembly and thus the patient using the mask assembly, or to allow the passage of pressurized gas to the patient.

A mouth seal assembly for use with a nasal mask system includes a mouth seal adapted to form a seal with the patient's mouth. The mouth seal is substantially independent from a supply of pressurized air from the nasal mask system. An anti-asphyxia valve may be provided to either the mouth seal over the patient's lips or the nasal mask system. A strap arrangement may support the mouth seal in a desired position on the patient's face in use.

An anti-asphyxia valve includes at least one flap having a first portion adapted for mounting to the housing and a second portion adapted to flex between a first open position allowing gas to pass from the patient side to the housing interior through the at least one port, and from the blower side through the at least one port, to atmosphere when a difference in gas pressure in the housing interior and atmosphere is below a predetermined operating threshold, and a second forcibly closed position substantially occluding the at least one port when the difference in gas pressure between the housing interior and atmosphere is substantially equal to or above the operating threshold.

An elbow assembly for a mask system includes an elbow including a slot and a port, an anti-asphyxia valve adapted to be received within the slot and including a flap portion adapted to selectively close the port depending on the presence of pressurized gas, and a clip member to secure the anti-asphyxia valve to the elbow. The clip member includes a slot that is adapted to interlock with a protrusion provided to the anti-asphyxia valve.

The present invention relates to a preventive and/or therapeutic agent for hyperkalemia, and a potassium excretion promoter containing EP₄ agonist. Since EP₄ agonist promotes potassium excretion, it is useful as a preventive and/or therapeutic agent for hyperkalemia. In addition, if selective EP₄ agonist uses, it is a preventive and/or therapeutic agent for hyperkalemia without side effects. Further, if EP₄ agonist is used, it is useful as improving agent for various symptoms (e.g. paresthesia, error of perception, weakness, myoparalysis, nausea, vomit, abdominal pain, diarrhea, arrhythmia, atrioventricular block, ventricular fibrillation, atrial fibrillation, cardiac arrest, asphyxia and/or dyspnoea etc.).

The invention relates to the automobile electronic technology field, in particular to an automobile environment monitoring system on the basis of an air sense technology and an electronic control technology. The invention consists of a singlechip, an air sensor, a signal conditioning circuit, a display screen, a control button, a buzzer and a vehicle window control interface circuit, wherein, the air sensor performs real-time monitoring on contents of gases like oxygen, carbon monoxide, formaldehyde, toluene and so on in the air in an auto carriage; a temperature sensor performs real-time monitoring on ambient temperature which is then displayed on the display screen. When content or temperature of any gas exceeds alarm value, an alarm signal is given off, and a user is inquired whether to open a vehicle window for ventilation; if no reply is given after waiting for a period of time, the vehicle window is forced to be opened, thereby occurrence of danger is avoided. The invention can effectively avoid occurrence of intoxication or asphyxia accidents in the carriage and has very important use value.

The invention discloses a novel traditional Chinese medicine composite for treating coma and heart syncope symptoms and a preparation method thereof. The traditional Chinese medicine composite mainly comprises the following raw material medicines: styrax, benzoin, holy basil, rhizoma acori graminei, toad venom, tambac, santalwood, rosa banksiae, nutgrass flatsedge, toosendan fruit, radix aristolochiae, common fibraurea, macrostem onion, fructus citri sarcodactylis, citron, aspongopus, lotus node, madder, dalbergia wood, plant soot, rhizoma ligustici wallichii, corydalis tuber, turmeric, curcuma, mastic, myrrh, radix salviae miltiorrhizae, peach kernel, safflower, radix notoginseng, ground beetle, stiff silkworm, logwood, draconis sanguis, catechu, rhizoma sparganii, rhizoma zedoariae, pangolin scales, spatholobus stem, motherwort, angelica, rhizoma atractylodis, radix puerariae, angelica root, sibirian button bur, magnolia flower, purple common perilla, chrysanthemum, baikal skullcap root and coptis root. The traditional Chinese medicine composite can be prepared into any common oral preparation according to a conventional traditional Chinese medicine preparation method. The invention can obviously improve diseases which are caused by the inverse disorder of the functional activities of qi, fluctuation warp and non-smooth qi of yin and yang and represent coma, delirium, exanimation and asphyxia as main symptoms or are accompanied with the symptoms of asphyxia and coldness of limbs, dottiness and the like, and has definite clinical curative effect, obvious curative effect and quick acting. Because the traditional Chinese medicine composite basically adopts medicine-food homologous medicines specified by the national dispensatory for combination, the traditional Chinese medicine composite has the advantages of low expense, no toxic or side effect basically and the like.

This Invention relates to a respiratory signal processing method, including the following steps: A. Obtain the respiratory physiological signals by means of a specific respiratory circuit, AD collects and obtains the respiratory digital signals and applies the data preprocessing to such signals; B. Convert frequency spectrum of the preprocessed respiratory signals and obtain the distribution of their frequency domain; C. Judge whether there is asphyxia in accordance with the properties of respiratory signal's physiological parameters; D. Introduce the physiological parameters of heart activities and analyze frequency spectrum distribution of respiratory signals and judge whether there is any interference from heart activities; E. Analyze the spectral energy envelop of respiratory waveform and find out the correct spectral peak, and then convert the frequency point corresponding to the spectral peak to the respiratory rate so as to obtain the value of current respiratory rate by integrating with the previous values of respiratory rate. The processing methods under this Invention can maximize the accuracy of results of respiratory rate and improve the stability of such result remarkably.

The invention discloses an asphyxia prevention intelligent control system for an automobile, and the system is an intelligent control device for preventing a child from being asphyxial when the childstays and sleeps in the automobile while an air conditioner of the automobile is turned on during parking. The control system includes a vehicle speed detecting module, a vital sign detecting module,an air temperature detecting module, a signal processing module, an alarm module, and a safety measure module. When the vehicle speed detecting module detects that a vehicle speed is zero, the vital sign detecting module starts to detect whether there is a person in the vehicle or not. When detecting a person in the vehicle, the gas temperature detecting module monitors the oxygen and carbon dioxide contents and temperature in the vehicle in real time if a vehicle owner does not come back within a preset time threshold. The signal processing module processes the information collected by the air temperature collecting module and judges whether the alarm module is activated to send an alarm message and the safety measure module opens a window or not. The system can effectively prevent the occurrence of asphyxia events.

The invention provides an artificial-intelligence-based-based early warning system and method of infant asphyxia. A camera module is used for collecting image and audio data of an infant and an ambient environment in real time; on the basis of an artificial intelligence algorithm, the system is able to carry out alarming automatically to warn the guardian to take measures when the infant is identified to be at an asphyxia risk like milk regurgitation, nose/mouth coverage, or lying with the face down after overturning. According to the invention, alarming is carried out when the infant may be at an asphyxia risk and thus pre-warning is realized, so that the precious rescue time is gained for parents and a phenomenon of the infant's death from suffocation or the physical development disordercaused by transient asphyxia and anoxia can be avoided. Moreover, defects of the existing monitoring camera are overcome. The system is integrated with functions of the common camera and the asphyxiaalarming sensor; and two problems of the common monitoring and alarming are solved only by one device.

The method and device of this invention immobilizes a person in a secure, upright restraint system in a police vehicle. It can be easily and safely applied by public safety officers including police or other law enforcement personnel and medical personnel to secure a person against undesired movement while maintaining them in an upright, sitting position which leaves the diaphragm free for natural, unrestrained breathing movement. The asphyxia-preventing restraining device comprises an ALR/ELR retractor. The ALR/ELR retractor comprises a shoulder harness having a pair of seat belt buckles, which significantly reduces the possibilities of injuries to police officers.

The present invention relates to a life cradle device for the purpose of inducing therapeutic hypothermia in neonates suffering from birth asphyxia. The device essentially consists of a rigid outer skeleton which could be fitted with removable mattresses containing form stable organic phase change materials effecting instant and sustained cooling. Multiple compartments of different phase change material composition functional at different temperatures are arranged in layers to replicate cooling performances as in conventional cascading systems. The device is also designed to have thermo-chromic indicators with an option of probes for automation control techniques. The device may also be fitted with thermostat controlled infant radiant warmer to automatically switch on when the infant is cooled down below requirement as a safety consideration.

The method and device of this invention immobilizes a person in a secure, upright restraint system in a police vehicle. It can be easily and safely applied by public safety officers including police or other law enforcement personnel and medical personnel to secure a person against undesired movement while maintaining them in an upright, sitting position which leaves the diaphragm free for natural, unrestrained breathing movement. The asphyxia-preventing restraining device comprises an ALR/ELR retractor. The ALR/ELR retractor comprises a shoulder harness having a pair of seat belt buckles, which significantly reduces the possibilities of injuries to police officers.

The invention provides a multifunctional nasal feeding tube and a nasal feeding system. The multifunctional nasal feeding tube is characterized in that a tube body of the nasal feeding tube is internally provided with a non-return valve; an airbag is arranged at the outer side of the tube body of the nasal feeding tube; the airbag is connected with a pressurizing airbag through an air guiding tube. The non-return valve can be used for preventing nutrient solution in the nasal feeding tube from reflowing; the airbag at the outer side of the tube body of the nasal feeding tube is inserted in the position of stomachus cardiacus; after the inflation of the pressurizing airbag, the situation that gastric contents at the outer side of the nasal feeding tube are sucked into a lung by mistake due to reflow can be effectively prevented. According to the multifunctional nasal feeding tube and the nasal feeding system, aspiration complications caused by enteral nutrition support therapy through nasal feeding can be prevented specifically; the lung infection, severe pneumonia, even asphyxia caused by aspiration progress are effectively reduced, and the death rate is lowered. The multifunctional nasal feeding tube and the nasal feeding system can be widely suitable for popularization and application of clinical enteral nutrition support therapy. Moreover, the nasal feeding tube is further provided with an injector joint and a drug administration joint, so that the drug administration operation is conveniently performed on a patient who cannot swallow drugs independently. A feeding material supply system is arranged in the nasal feeding system, nutrients can be continuously fed to the patient after the connection with the nasal feeding tube, and the feeding efficiency is improved.

The invention discloses a cardio-pulmonary resuscitation machine with a high-frequency ventilation function. The cardio-pulmonary resuscitation machine comprises a bottom plate, an upright, an external chest compressor, a controller shell, a high-frequency ventilation electromagnetic valve and a high-frequency ventilation air source connector, wherein the upright is arranged on the side of the bottom plate, the external chest compressor is arranged on the upright, the controller shell is mounted at the top end of the upright or on the bottom plate, the high-frequency ventilation electromagnetic valve is mounted in the controller shell, and the high-frequency ventilation air source connector is arranged on the controller shell. An air outlet of the high-frequency ventilation electromagnetic valve is connected with the high-frequency ventilation air source connector through a pipeline, and the high-frequency ventilation electromagnetic valve is electrically connected with a compression ventilation controller in the controller shell. The cardio-pulmonary resuscitation machine has the advantages that on the basis of a conventional cardio-pulmonary resuscitation machine, the open type high-frequency ventilation function is added, so that the cardio-pulmonary resuscitation machine can be switched to use between an intermittent positive-pressure ventilation function and the open type high-frequency ventilation function, application range is broadened, and the cardio-pulmonary resuscitation machine is applicable to emergency treatment of various critical patients with respiratory failure and asphyxia.

The invention provides an oxygen-free outburst-prevention green and efficient tunneling technology suitable for a gas-outburst coal road and belongs to the technical field of mining safety. The oxygen-free outburst-prevention green and efficient tunneling technology mainly relates to the outburst predicting and forecasting technique, an intrinsic-safety tunneling device, an intrinsic-safety transportation device, a noxious gas monitoring system, a dynamic variable-frequency gas drainage system, the inert gas blocking technique, and the accident emergency rescue technique. By the adoption of the oxygen-free outburst-prevention green and efficient tunneling technology suitable for the gas-outburst coal road, harm caused by coal and gas outburst accidents can be effectively controlled and eliminated, safe and efficient tunneling is achieved, asphyxia, fires and explosion caused by gas can be effectively avoided, the situation that people are injured by coal and rock flow can be prevented, life safety of personnel and equipment safety are guaranteed, gas emission is reduced, and environmental friendliness is achieved; meanwhile, production efficiency is improved, production cost is reduced, and economic benefit of enterprises are increased.

The invention features methods and apparatus for the treatment of asthma patients. A controlled supply of breathable air delivered to a patient interface or mask (4) is controlled for patient comfort to maintain a steady pressure level in a range 2 to 4 cm H₂O to accommodate patient respiration. The breathable air is cleaned by a high efficiency particulate arresting filter (10) to remove allergens from the air supply. The apparatus may be programmed to automatically detect asthma-related symptoms such as an asthma attack by analyzing the respiratory flow of the patient. In response to the detection of such an attack, the apparatus may provide an audible warning or if configured with a treatment delivery module (14A, 14B), the device may administer a therapeutically effective dose of a drug or substance, for example, a broncho-dilator, to alleviate the patient's breathing difficulty. Preferred mask designs allow for proper CO₂ washout to accommodate the low pressures supplied to the mask and prevent asphyxia.

The invention discloses a coal and gas outburst warning method of a coal mine heading face. The warning method comprises a reasonable sensor setting method, monitors the methane concentration, the wind direction, the data change of an air velocity transducer and the sensor faults in real time, analyzes the data change of the transducer and the sensor fault information in real time, and sends out coal and gas outburst warning and outage blocking signals if the combination condition of information abnormalities accords with the warning condition. The warning method fully considers various characteristics of the coal and gas outburst of the coal mine heading face, is simple in implementation, can judge the coal and gas outburst of the coal mine heading face more accurately, can effectively prevent such accidents as gas explosion caused by the coal and gas outburst, and can prevent or reduce the casualties caused by the gas asphyxia and the gas explosion.

The invention provides a control circuit of device used in rescuing asphyxia people belonging to the electronic technical field, which solves the problems of the prior cardio-pulmonary resuscitation machine such as single function, complex operation and fixed frequency of massage and oxygen therapy. The control circuit of cardio-pulmonary resuscitation machine comprises a control center, wherein the control center is connected with an electrical source module supplying electricity for the control center and a display used for displaying work information; a display drive chip is arranged between the display and the control center; the control center is connected with a massage controller and a respiratory controller; massage frequency of the massage controller, ventilation frequency of the respiratory controller and quantity of sub-oxygen therapy are controlled by the control center; moreover, the control center is also connected with an adjusting device used to adjust massage frequency, massage ventilation frequency and quantity of sub-oxygen therapy. With complete functions, simple operation and reasonable design, the invention can select appropriate ratio of massage frequency and ventilation frequency in time according to resuscitation state of patient, thereby possessing high success rate of rescue.

The invention provides a portable disaster-preventing emergent escape oxygen supply protective system. The portable disaster-preventing emergent escape oxygen supply protective system is mainly composed of a quick oxygen preparing portion, a flow control and conveying connection portion and a mask. When the system is used, clean oxygen required by people for survival can be provided, toxic and harmful gas in an environment is isolated, and a respiratory system and a visual system of the people are protected. Accordingly, when the emergency situation occurs, thought and action retardance caused by oxygen deficit or toxic and harmful gas inhalation and/or toxic smog and dust inhalation and the like is avoided, and asphyxia coma or death is avoided. The system has the advantages of being stable in performance, safe in storage, suitable for storage, convenient to carry, simple in operation and convenient to use when being not used. In addition, the system has the advantages of being unique in design, convenient to process, simple in structure, low in cost, and easy to popularize, can be arranged in a place where potential safety hazards of fire disasters and the toxic and harmful gas exist and can remarkably improve survival probability of the people under the situation of disaster occurrence.

Aiming at the problems, the invention provides a dual-chamber structure design. The dual-chamber structure design is suitable for a mask, a breathing mask and the like; the gas exchange efficiency is improved, and the asphyxia sensation during breathing is reduced while filtering purification of air can be realized; during inspiration, a one-way valve (7) is opened, a one-way valve (9) is closed, and gas as in a fresh air cavity (3) enters an exchange cavity (8) through the one-way valve (7) and further enters a respiratory system of a person; during expiration, the one-way valve (7) is closed, the one-way valve (9) is opened, and expired gas is quickly exhausted from the exchange cavity without reservation; in the expiring process, the one-way valve (7) is closed, and outside air continuously enters the fresh air cavity through a filter screen (1) by negative pressure generated in the fresh air cavity in the inspiration process; and clear air is supplemented and prepares for next inspiration, and the steps are repeated as above.