115 results about "Assisting ventilation" patented technology

Modes, methods, systems and devices are described for providing assisted ventilation to a patient, including wearable ventilation systems with integral gas supplies, special gas supply features, ventilation catheters and access devices, and breath sensing techniques.

A system for reducing effects of adverse air re-circulation in a room containing at least one heat generating component includes an air conditioning unit configured to cool airflow in the room and at least one cooling vent tile operable to deliver the cooled airflow to the at least one heat generating component. The system also includes at least one secondary vent tile positioned and operated to one of, introduce airflow into a re-circulating airflow and remove airflow from a re-circulating airflow, to thereby respectively divert or vary the temperature of the re-circulating airflow and thereby reduce the effects of air re-circulation in the room.

A closed loop system uses (a) the intensity of the diaphragm electromyogram (EMG) for a given inspiratory volume; (b) the inspiratory volume for a given EMG intensity; or (c) a combination of (a) and (b); in view of controlling the level of gas flow, gas volume or gas pressure delivered by a mechanical (lung) ventilator. The closed loop ventilator system enables for automatic or manual adjustment of the level of inspiratory support in proportion to changes in the neuro-ventilatory efficiency such that the neural drive remains stable at a desired target level. An alarm can also be used to detect changes in neuroventilatory efficiency in view of performing manual adjustments.

Method and apparatus are described for determining respiratory system resistance (R) in a patient receiving gas from a ventilator. A negative pulse in the pressure and / or flow output of the ventilator during selected inflation cycles is generated and Paw, V dot and V are measured at a point (T0) near the beginning of the pulse, at a point (T1) near the trough of the negative pulse and at a point (T-1) preceding T0. The value of R is calculated from the difference between Paw. V dot and V at TO and at TI and where the change in patient generated pressure (Pmus) in the interval TO-TI is estimated by extrapolation from the different between Paw, V dot and V and T0 and at T-I, in accordance with Equation 8.

The present invention provides a solar-powered ventilation system for an attic or rafter space that mimics the appearance of the roofing material and thus has little effect on the appearance of the building. The vent has two pieces, a primary vent and a secondary vent. The primary vent is installed on a roof deck over a ventilation opening cut through the deck. The secondary vent is constructed to look like the surrounding field tiles and is installed over the primary vent. The secondary vent includes a solar panel preferably attached to the top surface of the secondary vent. One or more vent openings in the secondary vent and an opening in the primary vent conduct air between the attic or rafter space and the outside. In certain preferred embodiments, a solar-powered fan is also preferably located underneath the secondary vent.

A ventilation assembly for an electronic equipment enclosure. The ventilation assembly includes a housing having at least one ventilation port, and a cover movable between an open position and a closed position. The cover is positioned over the ventilation port when the cover is in the closed position. The ventilation assembly further includes at least one electromagnet for selectively securing the cover in the closed position.

Modes, methods, systems and devices are described for providing assisted ventilation to a patient, including wearable ventilation systems with integral gas supplies, special gas supply features, ventilation catheters and access devices, and breath sensing techniques.

Automatic ongoing adjustment of the cycling-off time of ventilator inflation phase during assisted ventilation in accordance with true respiratory rate of a patient. Electrical signals are generated corresponding to the gas flow exchanged between patient and ventilator (flow) and / or to airway pressure (Paw) and the true respiratory rate of the patient (patient RR) is determined on an ongoing basis from the flow and / or Paw. The current average cycle duration of patient respiratory efforts (current patient TTOT) is estimated from patient RR. A current desirable duration of the inhalation phase (desirable TI) is calculated from the product of current patient TTOT a TI / TTOT ratio chosen to be in the physiological range, usually 0.25 to 0.50. The ventilator phase is caused to terminate in accordance with the desirable TI.

A closed loop system uses (a) the intensity of the diaphragm electromyogram (EMG) for a given inspiratory volume; (b) the inspiratory volume for a given EMG intensity; or (c) a combination of (a) and (b); in view of controlling the level of gas flow, gas volume or gas pressure delivered by a mechanical (lung) ventilator. The closed loop ventilator system enables for automatic or manual adjustment of the level of inspiratory support in proportion to changes in the neuro-ventilatory efficiency such that the neural drive remains stable at a desired target level. An alarm can also be used to detect changes in neuroventilatory efficiency in view of performing manual adjustments.

This invention can be used in three different ways for patients who are lying down in bed or on the operating table. First it facilitates the endotracheal intubation, secondly it facilitates the spontaneous breathing of obese patients and thirdly it assists the spontaneous inspiration and expiration in a non-invasive way. This invention device is positioned under the patient before he is asleep without disturbing him. It allows a gradual elevation of the lower and or upper thorax, a gradual elevation of the head giving a flexion of the neck and a gradual hyperextension of the head. After intubation the position is returned to normal without need for removing the invention device. This invention elevates the spinal column and therefore the thorax is no more compressed and the ribs can move free. Inspiration requires less force and the patient can be breathing easier even when lying down. In this invention the spinal column elevation can also be inflated in a synchronized way with the respiration of the patient. During inspiration the spinal column is elevated, facilitating the inspiration. During expiration the elevation is lowered, facilitating the expiration. The work of breathing is reduced for the patient resulting in larger minute volume ventilation or less oxygen consumption.

The present invention provides a solar-powered ventilation system for an attic or rafter space that mimics the appearance of the roofing material and thus has little effect on the appearance of the building. The vent has two pieces, a primary vent and a secondary vent. The primary vent is installed on a roof deck over a ventilation opening cut through the deck. The secondary vent is constructed to look like the surrounding field tiles and is installed over the primary vent. The secondary vent includes a solar panel preferably attached to the top surface of the secondary vent. One or more vent openings in the secondary vent and an opening in the primary vent conduct air between the attic or rafter space and the outside. In certain preferred embodiments, a solar-powered fan is also preferably located underneath the secondary vent.

The present invention relates to a method of delivering combined positive and negative pressure assist ventilation to a patient, wherein a positive pressure is applied to the patient's airways to inflate the patient's lungs, a negative pressure is applied around the patient's ribcage and / or abdomen in order to reduce a load imposed by the ribcage and / or abdomen on the patient's lungs, and application of the positive and negative pressures is synchronized. The present invention also relates to a system for delivering combined positive and negative pressure assist ventilation to a patient, comprising a positive pressure ventilator connected to the patient's airways for applying a positive pressure to the patient's airways to inflate the patient's lungs, a negative pressure ventilator installed on the patient's ribcage and / or abdomen for applying a negative pressure around the patient's ribcage and / or abdomen in order to reduce a load imposed by the ribcage and / or abdomen on the patient's lungs, and a contmller for synchronising operation of the positive and negative pressure ventilators.

An ambulatory assist ventilation (AA V) apparatus and system are disclosed for the delivery of a respiratory gas to assist the spontaneous breathing effort of a patient with a breathing disorder. The AA V system includes a compressed respiratory gas source, a respiratory assist device for controlling respiratory gas flow to the patient, a patient circuit tubing and a low profile nasal interface device, which does not have a dead space or hollow area where C02 can collect, for delivering the respiratory gas to the patient, wherein the nasal interface device is fluidly connected to the respiratory assist device via tubing for receiving the respiratory gas therefrom.

The invention relates to the technical field of cars, and provides a car window control device and method. The car window control device comprises a remote control unit and a car window control module; the remote control unit is used for sending a control instruction aiming at a car window; the car window control module pre-stores car window control strategies corresponding to car information andenvironment information under multiple working conditions and is used for receiving the control instruction sent by the remote control unit and calling the car window control strategy corresponding tothe current car information and the current environment information according to the control instruction to control the car window and a car air conditioning system to work cooperatively. According to the car window control device and method, the car window and the air conditioning system can be automatically controlled in a linkage mode under the multiple working conditions of a car to achieve fast cooling, auxiliary ventilation, oil consumption reduction and the like, therefore, the effects of being comfortable and saving energy are achieved, and the sense of science and technology of the car and the user experience are improved.

A ventilation assembly for an electronic equipment enclosure. The ventilation assembly includes a housing having at least one ventilation port, and a cover movable between an open position and a closed position. The cover is positioned over the ventilation port when the cover is in the closed position. The ventilation assembly further includes at least one electromagnet for selectively securing the cover in the closed position.

An air conditioning system for an aircraft includes a first rotatable shaft with a first compressor, a first turbine, a cooling air fan, and an auxiliary compressor connected for rotation therewith, and preferably further includes a second rotatable shaft with a second compressor and a second turbine connected for rotation therewith. A compression, cooling, and expansion cycle driven by at least the first compressor and the first turbine provides a principle flow of air conditioning air. The auxiliary compressor draws in outside air and provides a redundant auxiliary ventilation air flow, which is supplied into the installation space in which the air conditioning unit is installed, or another space in the aircraft that requires a reliable constant ventilation and cooling whenever the air conditioning unit is operational. The auxiliary ventilation air may be connected to a common air distribution network with other air conditioning units.

A litter box and sifting system having a cat door that is installed on the interior wall of a building and a litter box assembly located on the exterior side of the building. The litter box is accessed through a cat door and an adjustable tunnel. At the bottom of the litter box are interchangeable tray assemblies containing litter. The litter can be selectively sifting through fixed screens and removable sliding panels. The litter box enclosure includes a fan to assist ventilation through louvers, an interior light, a rechargeable battery for powering the fan and light, and a solar cell to recharge the battery.

The invention relates to a novel ventilation air-conditioning room, which is applicable to various industrial and civil buildings with basements, and is characterized in that outdoor fresh air enters a basement overhead ground ventilating layer through an outdoor air intake channel and a basement ventilating inlet according to a 'hole' natural ventilation air-conditioning principle to mix with ground air in the basement, so that the wind cool in summer and warm in winter is sent to each room through air pipes of the basements and upstairs and the indoor air is exhausted out of a roof covering through exhaust ducts and exhaust stacks on the roof covering, thus a natural ventilation air-conditioning circulation system is formed to achieve the aim of adjusting the temperature and the humidity of the indoor air naturally. Simultaneously, the novel ventilation air-conditioning room is provided with other energy-saving auxiliary ventilation air conditioning unit systems. Thus, the novel ventilation air-conditioning room saves energy by bout 50 percent compared with the prior water heating and air conditioning unit, is clean and environment-friendly, is constructed with far lower cost than that of the prior popular ground-source heat air-conditioning buildings, and is constructed simply and conveniently. Besides, the novel ventilation air-conditioning room has the advantages of environmental protection, energy saving, low cost, and the like.

The invention belongs to the field heat exchange, and relates to a boosted-ventilation direct air cooling tower, in particular to an air-cooling power generation air cooling island and an air driving mode. Due to winter-summer difference and day-night difference of air temperature, frequent natural wind and multiple changes of wind speed and wind direction, a pure natural ventilation and simple mechanical-assisted ventilation air cooling tower is difficult to meet current air cooling requirements. Condensation triangles composed of axial flow fans, finned tubes and the like are disposed around the lower portion of a natural ventilator. Cooling capacity of the air cooling tower in summer is greatly enhanced, damage of strong wind is weakened greatly, excess draft in the air cooling tower in winder can be utilized, energy is recovered through the axial flow fans, and hot air in the tower can be pumped out by reverse rotation of the fans to melt the accidentally-frozen fined tubes. The boosted-ventilation direct air cooling tower can be matched with direct air cooling and indirect air cooling units in various sizes.

Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus. In addition, the methods and device allow for timed delivery of ventilations based on a condition of a thoracic cavity to increase the amount and efficiency of blood flow during a resuscitation procedure.

Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus.

The invention discloses green building ventilation and energy saving equipment which comprises a ventilation pipe. A first motor is arranged on the surface of the outer side of the ventilation pipe, the input end of the first motor is electrically connected with the output end of an external PLC, an output shaft of the first motor penetrates into the ventilation pipe to be connected with a blind window, an air speed sensor is arranged on the upper surface of the ventilation pipe, the output end of the air speed sensor is electrically connected with the input end of the external PLC, and an air exchange device is arranged on the surface of the outer side of the ventilation pipe. According to the green building ventilation and energy saving equipment, the intelligent degree is improved, natural resources can be sufficiently used, and energy conservation and environmental protection are facilitated; the first motor is used for controlling opening and closing of the blind window, opening and closing of the ventilation pipe are controlled, the air speed sensor can detect the magnitude of outdoor natural air and can intelligently open and close the blind window through the external PLC, and the natural resources can be sufficiently used; and a fan is used for assisting in ventilation and air exchange, can be driven by a second motor to be folded when not used, and entrance of natural air is facilitated.

The invention relates to an energy-saving ventilation structure for building design, and belongs to the technical field of green energy-saving buildings. The building outer walls are vertically arranged on the bearing surface of the building bottom wall in a surrounding manner; wherein the top of the building outer wall is covered with the building top wall, adjustable ventilation mechanisms are symmetrically arranged on the building outer wall, an auxiliary ventilation mechanism is arranged on the building top wall, a solar temperature regulation and control mechanism is arranged on the top of the building top wall, and the ventilation mechanism comprises a plurality of windows symmetrically formed in the building outer wall; the window frame is arranged at the window position and is matched with the window; and the first adjusting assembly is arranged at the position of the side wall of the window. According to the energy-saving ventilation structure for building design, the size andshape of the convection opening can be controlled, so that the air speed and the air volume can be correspondingly adjusted indoors, and the purpose of adjusting and controlling the indoor ventilation is achieved.

The invention discloses a method for ventilation-assisting roadway arrangement and surrounding rock stabilizing control in the later period of coal mining, belonging to a method for mine ventilating system optimization and roadway arrangement. The method comprises the steps of (1) determining and arranging section coal pillars of roadways for assisting ventilation namely air inlet or air return; (2) analyzing the stability of the section coal pillars; (3) optimizing roadway arrangement schemes in the section coal pillars; (4) determining a technical scheme for reasonable roadway supporting. Aiming at the problems that in the later period of coal mining, a ventilating line is long, ventilation resistance is great, and air loss is great, the method is characterized in that the ventilation-assisting roadways are arranged in the section coal pillars in a left area of a gob, so as to shorten the length of the mine ventilating line length and reduce air loss, and has the advantages of greatly shortening the ventilating line length and reducing air loss by arranging the ventilation roadways in the section coal pillars in the left area of the gob, meanwhile improving a resource extraction rate and increasing the economic benefit of an enterprise by more extracted coal in roadway construction, meeting the need of safe mine production, and achieving obvious technical and economic benefits.

A test conjoined electrolytic bath provided with an assisted ventilation chamber is suitable for the electric performance test field of a fuel-cell catalyst. The test conjoined electrolytic bath mainly comprises three parts, namely a test pool, an assisted ventilation chamber and a reference hydrogen reference electrode chamber. The test pool is provided with a working electrode, a counter electrode with a platinum sheet and a glass core mounted at an inlet air pipe end. The reference hydrogen reference electrode chamber contains a reference hydrogen reference electrode liquid storage tube, a connecting pipe arranged between the reference hydrogen reference electrode chamber and the test pool, and a reference hydrogen reference electrode provided with an inlet air pipe and a platinum black plated platinum sheet. The reference hydrogen reference electrode chamber is connected with the test pool through the connecting pipe. The assisted ventilation chamber is provided with the inlet air pipe. The connecting pipe is fixed between the assisted ventilation chamber and a test cabinet. And the inlet air pipe faces a port of the connecting pipe. A porous glass plug is also arranged inside the connecting pipe.

The present specification discloses a ventilator system that can be manufactured quickly with minimal skill requirements and rapidly deployed in response to epidemic respiratory disease conditions. In one embodiment, the ventilator, having a minimal number of controls, is used to give ventilation or mechanical breathing to a patient suffering ARDS. The mechanical ventilation is based on pressure control and has variable pressure, breathing rate, and oxygenation. Preferably, the ventilator is rapidly deployable, easy and intuitive to operate, and capable of sustaining at least 75% of epidemic respiratory distress victims who require assisted ventilation until resuming normal breathing.