113 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.

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 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.

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.

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 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.