68 results about "Artificial ventilator" patented technology

A humidification unit adapted to be disposed in a patient circuit for humidifying the flow of breathing gas delivered to the patient via the patient circuit by an artificial ventilator system. The humidification unit includes an exothermic member having an outer surface and a plurality of hollow fibers disposed on the outer surface of the exothermic member. Each hollow fiber is defined by a peripheral wall having minute openings large enough to allow a gas to pass therethrough yet small enough to prevent a liquid from passing therethrough. Liquid delivered to the hollow fibers is heated by the exothermic member and the gas vapor resulting from the heating passes through the hollow fiber walls and humidifies the flow of breathing gas delivered to the patient.

Method for providing ventilatory settings with regard to the airway pressure levels of an artificial ventilator, the artificial ventilator is connected to a lung, including the steps of obtaining data samples of a gas concentration of the expired gas over a single breath; selecting a plurality of data samples from the obtained data samples; calculating a tracing value being sensitive to changes of alveolar dead space on the basis of the selected data samples; repeating steps a), b) and c) for obtaining a plurality of tracing values; and changing at least one airway pressure level of the artificial ventilator, wherein from an observation of a resulting course of the plurality of calculated tracing values an airway pressure level at which alveolar opening or lung overdistension or lung open condition or alveolar closing occurs is detected. Apparatus for providing ventilatory settings with regard to the airway pressure levels of an artificial ventilator is also disclosed.

According to one aspect of this invention, there is provided a medical facial mask having intubation port to insert an endotracheal tube; air ventilation port to perform artificial ventilation during intubation procedure; and a display device to display image of a patient's airway, wherein the image is transmitted from an image acquisition device which is inserted in the patient's airway.

The invention refers to a method and apparatus for changing the concentration of a target gas at the blood compartment of a patient's lung from an actual target gas concentration to a desired target gas concentration during artificial ventilation with an inspiratory gas composition by a respirator being controlled via a set of ventilation parameters. In order to decrease the negative effects of general anaesthesia during artificial ventilation even further, the method according to the invention comprises the following steps: a) ventilating the lung in a first ventilation stage, and b) ventilating the lung in a second ventilation stage in which alveolar recruitment is promoted.

Methods and systems that incorporate automated or manual control of ventilation and kinetic rotation therapy are provided. In one exemplary embodiment, an artificial ventilator is used to artificially ventilate one of the patient's lungs, the status of the artificially ventilated lung is determined by measuring one or more ventilation status measures, and one or more of the ventilation status measures is used to provide feedback for controlling the positioning of the patient. In some exemplary embodiments, the feedback is used for automated control of the positioning of the patient, while in other exemplary embodiments, the feedback is used as guidance for manual control of the positioning of the patient.

The invention discloses a high-speed effluent navigation body ventilation vacuole multiphase flow characteristic measurement experiment device and method and relates to the high-speed effluent navigation body ventilation vacuole multiphase flow field. A motion device, an air charging device, a lighting device and an experimental data acquisition device are combined to form a set of unique experimental method for studying a ventilation vacuole fusion mechanism and a ventilation vacuole flow characteristic. According to the characteristics of a decompression tank, a unique movement mode, an illumination mode, an observation mode, and the air charging mode of accurately controlling an air charging flow and pressure are designed, and problems that a previous ventilation vacuole experiment research device can not provide a decompression environment, can not accurately control a ventilation parameter, and can not overcome the work of the motion device in the decompression environment and soon are solved. An artificial ventilation vacuole fusion process in a real underwater launching process can be simulated, the flow state characteristic of a navigation body is researched and the deviceand the method have a great advantage on the aspect of researching ventilation vacuole fusion.

An artificial ventilation apparatus includes: a connecting portion which is connected to a respiratory system of a patient; an inspiratory circuit which is a flow path for flowing a gas from a ventilator to the connecting portion; an expiratory circuit which is a flow path for guiding a gas exhausted from the connecting portion to an exhaust portion of the ventilator; an expiratory valve which blocks a flow of a gas from the exhaust portion toward the connecting portion; a carbon dioxide concentration sensor which is disposed in a circuit that is arranged at a downstream side of the expiratory valve and which detects a carbon dioxide concentration; and an alarm outputting unit which outputs an alarm based on an output of the carbon dioxide concentration sensor.

A combination of a bellows structure (12), volume restrictor, and pressure restrictor for use on a hand-operated resuscitator is provided to enable delivery of ventilation within specific volume and pressure limitations specified by the operator. The bellows structure (12) consistently provides predictable and uniform generation of gas flow for ventilation without regard to one or two-handed technique, hand placement, or hand size. The volume restrictor, primarily comprising of an inflow obturator (20), outflow obturator (22), and placement cam (34), enables the physician to specify a specific tidal volume to be delivered, which constitutes a volume-controlled cycling capability of the invention. The pressure restrictor, primarily comprising of an outer housing (40), stopper housings (41), and a stopper (50), enables the physician to specify a specific maximum airway pressure to be exposed to the patient, which constitutes a pressure-controlled cycling capability of the invention. Combined use of the volume and pressure restricting mechanisms can provide for various additional abilities, including limiting airway pressure during volume-controlled ventilation or providing a means to detect decreasing pulmonary compliance.

The invention discloses an efficient artificial ventilator for cardiological nursing, comprising a medical mask and a patient mask connected with each other through a gas conducting tube; the gas conducting tube comprises an upper gas conducting tube and a lower gas conducting tube; the connection of the upper gas conducting tube and the medical mask is provided with a first intake port, the connection of the lower gas conducting tube and the patient mask is provided with a second intake port, the patient mask is provided with a nasal auto-blocking structure, the upper gas conducting tube is provided with a liquid blocking preventive structure, and the lower gas conducting tube is connected with an auxiliary artificial ventilation structure. The efficient artificial ventilator for cardiological nursing allows the nasal cavity of a patient to be automatically blocked during artificial ventilation so that artificial ventilation is more effective; it can be prevented that liquid exhaled by medical staff blocks a line; artificial ventilation and auxiliary artificial ventilation can be carried out alternately; therefore, artificial ventilation frequency can be kept constantly normal during long-term treatment of a patient, and therapy of the patient is benefited.

An endotracheal tube is provided, which has a corrugated cuff and is used for purpose of establishing patent airway and artificial ventilation of a patient in fields such as anesthesiology or emergency medicine. Since the cuff of the endotracheal tube is structured to have a corrugated pattern on an outer surface when expanded, the cuff is able to not only provide original functions of preventing entry of pharyngeal content into trachea by sealing off space between the endotracheal tube and the inner wall of the trachea, and preventing gas leakage during positive pressure ventilation, but also greatly reduce incurrence of complications after use of the endotracheal tube such as ischemic damage or sore throat by minimizing contact surface between the cuff and the tracheal mucous membrane.

A breathing tube support device for holding and supporting one or more flexible breathing tube(s) of a breathing circuit during provision of anesthesia, assisted and artificial ventilation and / or spontaneous ventilation has a flexible support arm formed of a length of flexible axially extendable and collapsible corrugated tubing, a mounting base at a bottom end thereof for attachment to the patient or a support surface, and a breathing tube holder a top end thereof for receiving and supporting a section of the breathing tube(s). The flexible support arm can be expanded to increase its length longitudinally and collapsed upon itself to shorten its length longitudinally, and is sufficiently flexible to assume a bent or curved configuration, and sufficiently stable to retain the bent or curved configuration, whereby breathing tube(s) held and supported by the device can be optimally positioned relative to the patient's head and neck area.

A sputum apparatus includes a suction line, a switching unit, a measurement unit, and a control unit. The suction line has a suction inlet which aspirates sputum produced in patient's respiratory tract; and an accommodating part maintained at negative pressure, which accommodates the aspirated sputum. The switching unit is in the suction line, and can switch between first state where the suction inlet communicates with the accommodating part, and second state where the suction inlet is shutoff from the accommodating part. The measurement unit measures the expired air being aspirated into the accommodating part, under the first state. The control unit can switch the switching unit from the second state to the first state during expiration, and keep the first state when the expired air measured by the measurement unit is under predetermined value.

An artificial ventilation apparatus includes: a connecting portion which is connected to a respiratory system of a patient; an inspiratory circuit which is a flow path for flowing a gas from a ventilator to the connecting portion; an expiratory circuit which is a flow path for guiding a gas exhausted from the connecting portion to an exhaust portion of the ventilator; an expiratory valve which blocks a flow of a gas from the exhaust portion toward the connecting portion; a carbon dioxide concentration sensor which is disposed in a circuit that is provided at a downstream side of the expiratory valve and which detects a carbon dioxide concentration; and an alarm outputting unit which outputs an alarm based on an output of the carbon dioxide concentration sensor.

This invention relates to an artificial breathing apparatus comprising a patient circuit (1) carrying gas comprising an inspiratory branch (2), and at least one pressure sensor arranged so as to operate at least one pressure measurement within the patient circuit (1), characterised in that it comprises a differential pressure sensor (4) and an absolute pressure sensor (5) located on the inspiratory branch (2), and control means cooperating with the differential pressure sensor (4) and the absolute pressure sensor (5) to detect a failure or malfunction of one or other of the said differential pressure (4) and absolute pressure sensor (5). The apparatus covered by the invention can be used in the treatment of chronic obstructive pulmonary disease (COPD), acute respiratory distress syndrome (ARDS) or in post-operative care.

The invention relates to a ventilator for artificially ventilating a patient, comprising an interface (3) for reading in at least one ventilation parameter (PINSP, PEEP, RAM, I / E, RAT, TINSP, TEXP, TAZ) relevant to the artificial ventilation. According to the invention, the ventilator comprises a computing unit for calculating a breathing curve (4, 4a, 4b) from the at least one ventilation parameter (PINSP, PEEP, RAM, I / E, RAT, TINSP, TEXP, TAZ) and a display unit (2) for displaying the calculated breathing curve (4, 4a, 4b). The invention further relates to a method for operating the ventilator according to the invention.

The invention discloses a biological trickling filter treatment system and treatment method of domestic wastewater. The treatment system comprises an intake water tank, wherein the intake water tank is connected with one end of an intake pipeline through a water pump, the other end of the intake pipeline is connected with a water distributing device, and a biological trickling filter is arranged under the water distributing device; the biological trickling filter comprises a box body, a plurality of effluent holes are formed at the bottom of the box body, the interior of the box body comprises a pebble layer and a plurality of zeolite packing layers filled from the bottom to the top, a scrap iron layer is uniformly spread between the adjacent two zeolite packing layers, and a microbial film is attached to each zeolite packing layer; and wastewater is pumped into the intake pipeline by the water pump and is sprinkled dropwise by the water distributing device into the biological trickling filter to carry out purifying treatment. The effluent water quality meets the first-level discharge standard of 'Discharge standard of pollutants for municipal wastewater treatment plant', water exclusion and clogging phenomena do not occur in the operational process, and artificial ventilation is not needed, so that the biological trickling filter treatment system and treatment method can be applicable to distributed treatment of wastewater in rural areas of China.

The invention relates to a photovoltaic greenhouse system structure, and relates to the technical field of planting greenhouses. An inclined rod is fixedly disposed on support rods and is connected with a plurality of photovoltaic modules via brackets and hinges, and cylinders are fixedly disposed on the inclined rod and are connected with the photovoltaic modules through connecting rods. The lower edge of the outermost photovoltaic module is connected with a drainage ditch, and drainage holes are uniformly distributed in the drainage ditch and are connected with a fall pipe which is connectedwith a water tank. A spray pipe is fixedly disposed below the inclined rod, spray headers are evenly distributed in the spray pipe, and the spray pipe is connected with the water tank through a waterpump. A glass side plate is connected below the outermost photovoltaic module, and the photovoltaic modules are connected with the cylinders and the water pump through circuits. According to the photovoltaic greenhouse system structure of the present invention, electricity is provided for a ventilation system and an irrigation system through photovoltaic power generation, artificial ventilation and irrigation are not needed, automatic collection and irrigation of rainwater are achieved, energy is saved, and labor efficiency is high.

The invention relates to a tracheal catheter for creating an air passage for artificial ventilation for a patient in anesthesiology or emergency medicine, and in particular relates to a tracheal catheter which is characterized by being provided with a corrugated air sac. When the tracheal catheter is expanded, the air sac has a corrugated structure, and the outer side surface of the air sac is in a shape of water wave, therefore, the original functions of the air sac are maintained, namely the air sac is used for blocking a space between the tracheal catheter and the inner wall of a trachea so as to prevent nasopharyngeal secretions from flowing into the trachea and prevent air leakage during a positive-pressure ventilation period, and meanwhile, a contact surface between the air sac and a tracheal mucous membrane can be minimized, and the possibility of complicating diseases, such as ischemic injury and sore throat, caused by the tracheal catheter can be remarkably reduced.

The invention discloses a water-reactive metal fuel cyclone ramjet steam generator with an aim to solve problems that a steam generator is low in steam quality, limited in use, high in cost and the like. The water-reactive metal fuel cyclone ramjet steam generator comprises a water container, a high-pressure pump, a high-pressure power system, a water pressure stabilization unit, a casing, a cyclone generator, an air supply system, a punching cone, a combustion chamber, a steam-water separator, a metal particle feeding system and a hydrogen collector. Artificial ventilation supercavitation isused to maintain fluid velocity without too much decrease; high-temperature and high-speed water and steam two-phase flow is produced by means of cyclone punching, metal particles are made to fully react with the water, and a large amount of high-temperature and high-speed steam is produced; controllable continuous reaction of the water and the metal particles under normal temperature and pressureconditions is realized, and the steam generator is low in cost, high in efficiency, reasonable in design and capable of adapting to various working conditions and has good application prospects in new marine propulsion systems, industrial steam generation, sewage treatment and disposal, hydrogen preparation, sweater desalination and other fields.

The invention discloses a cardiopulmonary resuscitation integrated device and method performing electrocardio rhythm identification during artificial ventilation interphase. The cardiopulmonary resuscitation integrated device comprises a main machine, wherein the main machine is separately connected with a chest compression assembly and an automatic external defibrillation instrument. The main machine is connected with the chest compression assembly and the automatic external defibrillation instrument through a connecting line; and the automatic external defibrillation instrument is connectedwith two electrode plates and the two electrode plates are used for being stuck to a human body during defibrillation. The method comprises the following steps of the first step: judging whether the chest compression assembly achieves the artificial ventilation interphase or not, and if yes, controlling the automatic external defibrillation instrument to start electrocardiosignal analysis by a central processing module; the second step: removing respiratory interference by a respiratory interference restrain algorithm; and the third step: judging whether the electrocardiosignal is defibrillation rhythm by a short time electrocardio rhythm identification algorithm. The device and method have the advantages that automatic chest expression, auxiliary respiration and electric defibrillation integrated operation can be realized, the artificial ventilation interphase is used for electrocardio rhythm identification, and the condition that suspended chest compression caused by judgment of electrocardiosignal can be avoided.

An urban waterfront area design partitioning method based on hydro-climate effect comprises the following steps: processing remote sensing image data by adopting ENVI software, and performing surfacetemperature inversion by adopting an atmospheric correction method; setting a multi-ring buffer area under a GIS platform, extracting the surface temperature average value of a target plot and each buffer area, and calculating the average cooling value of each buffer area; carrying out regression analysis on the average cooling value and the buffer area distance to obtain an effective cooling range of a water body, and defining a climate sensitive area; analyzing an urban ventilation gallery, identifying a regional wind environment, determining an air inlet or a cold island intersection of theurban ventilation gallery, and dividing a windward control region; and simulating and analyzing a wind environment through fluid calculation mechanical software, and defining a ventilation potentialarea capable of constructing an artificial ventilation gallery according to the wind speed grade. According to the urban waterfront area design partitioning method, hydro-climate effect characteristics and urban design elements are fully fused; climate design partitions are qualitatively and quantitatively delimited; and a scientific auxiliary planning department constructs an urban waterfront area.

The invention discloses an air cushion organic solid refuse tank fermentation system, which is composed of at least one fermentation unit, and the fermentation unit comprises a fermentation container (1), a ventilation apparatus (5), an air cushion (6) and a detection apparatus , and the fermentation container (1) is provided with the ventilation apparatus (5), the air cushion (6) and the detection apparatus inside, which is characterized in that the top of the fermentation container (1) is provided with a fixing device (4), and the bottom is provided with a supporting device (7); the ventilation apparatus (5) is equipped in the fermentation container (1); the air cushion (6) is equipped at the bottom of the fermentation container (1); The detection apparatus is equipped between the fermentation container (1) and the inner ventilation apparatus (5). The invention has the advantages of small land occupation area, low fermentation cost, low energy consumption, automation and large scale production, etc., and no matter how large the product scale, the fermentation process can be finished only by one person, and the whole fermentation process does not need artificial ventilation and stirring.

A silencer having improved ease of maintenance and a small size and light weight and a respiratory assistance device. The silencer is provided to therapy equipment where pressurized air is generated by a blower, and the pressurized air is supplied to an airway of a patient from an attachment part attached to the patient, the silencer being inserted into a flow passage so as to reduce sound generated by the therapy equipment, the pressurized air being introduced from the blower to the patient through the flow passage. The silencer is provided outside a casing which accommodates the blower.

Methods and systems that incorporate automated or manual control of ventilation and kinetic rotation therapy are provided. In one exemplary embodiment, an artificial ventilator is used to artificially ventilate one of the patient's lungs, the status of the artificially ventilated lung is determined by measuring one or more ventilation status measures, and one or more of the ventilation status measures is used to provide feedback for controlling the positioning of the patient. In some exemplary embodiments, the feedback is used for automated control of the positioning of the patient, while in other exemplary embodiments, the feedback is used as guidance for manual control of the positioning of the patient.

Provided / Disclosed is a cardiopulmonary resuscitation (CPR) training apparatus, comprising: a mannequin including a head portion with an airway, and a body portion connected to the head portion; a compression portion provided in the body portion, the compression portion to be pressed in response to a chest compression; an airbag connected to the airway, the airbag configured to enable an artificial ventilation; and a measurer configured to measure a CPR performance state in response to the chest compression and the artificial ventilation performed on the mannequin.

A silencer having improved ease of maintenance and a small size and light weight and a respiratory assistance device. The silencer is provided to therapy equipment where pressurized air is generated by a blower, and the pressurized air is supplied to an airway of a patient from an attachment part attached to the patient, the silencer being inserted into a flow passage so as to reduce sound generated by the therapy equipment, the pressurized air being introduced from the blower to the patient through the flow passage. The silencer is provided outside a casing which accommodates the blower.

The invention discloses a single multi-ventilator for treating multiple patients using one ventilator device. Potentially, the single disclosed multi-ventilator can be used to ventilate an entire department of patients using personalized ventilation parameters and settings.In case of emergency, such as Covid-19, health care system may be overwhelmed by a number of patients requiring ventilator medical care to keep them alive. In such a situation, a presented ventilator solves a problem of choosing which patients will receive a ventilator treatment and which will not.The invented ventilator provides individualized artificial ventilation care for multiple connected patients to it according to parameters determined and set by a physician.It is important to mention that control means and main processing means will be centralized in our invention, which is another advantage of the invented ventilator.Separate inspiration and expiration lines make the ventilator safe to use and easy to clean and to disinfect.The medical personnel can remotely monitor all connected patients, and also set and modify different personal parameters for each patient, from a single remote on-screen patient monitor display station. In such a way, the personnel will be protected from unnecessary exposure to viruses and bacteria.