166results about How to "Effective ventilation" patented technology

Methods, systems and devices are described for new modes of ventilation in which specific lung areas are ventilated with an indwelling trans-tracheobronchial catheter for the purpose of improving ventilation and reducing hyperinflation in that specific lung area, and for redistributing inspired air to other healthier lung areas, for treating respiratory disorders such as COPD, ARDS, SARS, CF, and TB. Trans-Tracheobronchial Segmental Ventilation (TTSV) is performed on either a naturally breathing or a mechanical ventilated patient by placing a uniquely configured indwelling catheter into a bronchus of a poorly ventilated specific lung area and providing direct ventilation to that area. The catheter can be left in place for extended periods without clinician attendance or vigilance. Ventilation includes delivery of respiratory gases, therapuetic gases or agents and evacuation of stagnant gases, mixed gases or waste fluids. Typically the catheter's distal tip is anchored without occluding the bronchus but optionally may intermittently or continuously occlude the bronchus. TTSV is optionally performed by insufflation only of the area, or by application of vacuum to the area, can include elevating or reducing the pressure in the targeted area to facilitate stagnant gas removal, or can include blocking the area to divert inspired gas to better functioning areas.

A shoe which facilitates ventilation between the inner area of the shoe and its surrounding environment. An air cavity allowing foot heat and moisture to escape the immediate foot area and exhaust into free open space is used. A dual-layer sole system which is integrated in a manner to form an air cavity therebetween is also utilized. A series of perforations and/or cutouts are used to facilitate foot-air and moisture flow. A plurality of ventilation ports are used to facilitate bi-directional air exchange and circulation. Two anvil-shaped supports at the ball and foot area may serve as a framework to preserve the shape of the open-air cavity.

The invention relates to an article of footwear, in particular a sports shoe, wherein the article of footwear comprises a ventilation system with at least one active ventilation element arranged in a midfoot area of the article of footwear. Furthermore, the article of footwear comprises at least one air channel with an inlet and an outlet which are arranged in the sole area in the interior of the article of footwear. The active ventilation element is arranged such that air is sucked from the interior of the article of footwear through the inlet and is blown into the interior of article of footwear shoe through the outlet.

A generally S-shaped vent is provided for a roof including a substructure having at least one ventilation hole and being covered by a plurality of tiles. The tiles form a finish layer having peaks and valleys. The vent includes a base assembly having a number of flange members and at least one venting member with a vent aperture. The flange members are coupled to the roof substructure at or about the ventilation hole. At least one cap member is coupled to the base assembly, overlaying the vent aperture and including an upslope end, a downslope end, first and second sides, and an arcuate portion extending between the first and second sides. First and second louvered portions of the first and second sides of the cap member provide a ventilating passageway through the vent. The vent substantially conforms to the peaks and valleys of the finish layer of the roof.

A portable life support apparatus (1102) and particularly a respiratory support apparatus adapted to be easily mounted to a stretcher is disclosed. Prior devices that attach onto a stretcher are heavy and cumbersome and obstruct access to the patient. Accordingly, there is a great need for a portable emergency support device that overcomes the weight, size, positioning, and other portability disadvantages. One aspect relates to a portable life support device including at least one ambient gas inlet (14); a conditioned gas outlet (30); an oxygen concentrator (26,28) fluidly connected between the at least one gas inlet and the gas outlet, and a ventilator (44) fluidly connected downstream from the oxygen concentrator. A further aspect is directed to a portable life support apparatus in the form of a portable respiratory support apparatus (1102) capable of exploiting both ambient air and expired gas as oxygen sources, wherein the oxygen generator (20) and ventilator (10) are arranged end to end to provide a longitudinal profile that can thus be compactly secured to a stretcher or other similar emergency transport vehicle.

The present invention relates to a ventilator of fuel-cell vehicles for ventilating hydrogen in the hydrogen-system unit area arranging a hydrogen circulating device in the fuel-cell vehicles boarding the fuel cell. The ventilator of fuel-cell vehicle includes a first ventilating device for taking ventilating air in from a front side of the fuel-cell vehicle to hydrogen-system unit area arranging the fuel cell, the hydrogen supply device, and the hydrogen exhaust device in the center of front and rear direction of the fuel-cell vehicle; and a second ventilating device for sucking the ventilating air taken in from the rear end of vehicle body of the fuel-cell vehicle to the hydrogen-system unit area.

An impeller exhaust ridge vent is provided for covering a ridge slot formed along the ridge of a roof. The ridge vent has an elongated laterally flexible center panel with edge portions along which vents are formed. Standoffs can depend from the bottom of the center panel for supporting the center panel a predetermined distance above the roof deck so that attic air can vent through the ridge slot, beneath the center panel, and exit through the vents. A base panel can be provided to cover the roof deck and form a smooth substantially sealed air duct for passage of the air. Upstanding wind baffles are disposed outboard of and spaced from the vents. One or more tangential impellers is rotatably mounted in the pace between the vents and wind baffles and can be free spinning or driven by an electric motor. Rotation of the tangential impellers creates a cross-flow fan effect that draws air forcibly from beneath the center panel and exhausts it to ambience. The attic space is thereby actively ventilated.

Apparatus and methods for non-invasively determining cardiac output using partial re-breathing techniques are disclosed in which the apparatus is constructed with an instantaneously adjustable deadspace for accommodating differences in breathing capacities of various patients. The apparatus is constructed of inexpensive elements, including a single two-way valve which renders the apparatus very simple to use and inexpensive so that the unit may be readily disposable. The method of the invention provides a novel means of estimating cardiac output based on alveolar CO₂ values rather than end-tidal CO₂ values as previously practiced. A program for calculating cardiac output is also disclosed.

The invention relates to a solar active-passive heat storage 'triple' structure wall building system of a solar greenhouse and belongs to the field of garden facilities. The 'triple' structure wall building system mainly comprises a phase-change heat storage wall panel, a solar air collector, a plurality of wall air channels, autoclaved lime-sand bricks and a heat preservation material plate. The phase-change heat storage wall panel is directly adhered to the inner surface of the back wall of the solar greenhouse, the middle tier of the back wall is constituted by the autoclaved lime-sand bricks, and the heat preservation material plate is adhered to the outer side of the back wall. The middle tier, constituted by the autoclaved lime-sand bricks, of the back wall is provided with the wall air channels, and the phase-change heat storage wall panel, directly adhered to the inner surface of the back wall of the solar greenhouse, and a wall body form a passive solar phase-change heat storage wall. The solar air collector is communicated with the wall air channels through a ventilator, an air return valve and an air supply valve to form an active solar hot air wall heat display and heat storage system. Therefore, heat collecting, preserving and insulating capacities of the solar greenhouse wall can be remarkably improved.

A waterproof and vapor-permeable shoe, comprising a sole, provided with a vapor permeation region, an assembly insole, which is covered, toward the sole, by at least one first gasket made of waterproof material, which has at least one vapor-permeable or perforated portion above the vapor permeation region, which, once assembled, covers an upper shoe assembly, which comprises at least one vapor-permeable lining, a vapor-permeable upper, and a waterproof and vapor-permeable upper membrane that is between them, the upper shoe assembly being associated with the assembly insole, and at least one second gasket, which adheres so to form a waterproof seal to the first gasket and is glued to the lower edge of the upper, the second gasket forming a waterproof sealing region of the upper shoe assembly and the first gasket to the sole.

An outdoor canopy includes a canopy frame, a canopy shelter and a side entrance arrangement. The canopy frame includes a roof frame and a legs frame downwardly extended from the roof frame to form a canopy area. The canopy shelter, which is made of waterproof fabric, is detachably fastening at the canopy frame to define a ceiling wall, a front wall, a rear wall and two sidewalls for enclosing the canopy area therewithin. The side entrance arrangement is formed on one of the sidewalls of the canopy shelter for a user to gain entry to and exit the canopy area without having to pass through the front entrance, wherein the side entrance arrangement contains a side entrance opening formed on the corresponding sidewall of the canopy shelter, and comprise at least one entrance fabric operatively mounted on the corresponding sidewall.

A battery module comprises: first and second rechargeable batteries, each of which includes a casing for storing an electrode assembly and a cap assembly provided on top of the casing; an interconnector provided between an upper portion of the first rechargeable battery and a lower portion of the second rechargeable battery so as to connect the first and second rechargeable batteries with each other; and an insulation cover which covers interconnected portions of the first and second rechargeable batteries, and which has at least one ventilation outlet.

A system, in accordance with the invention, relates to ventilating a tunnel 1 in the event of fire or emission of gases C or aerosols. The system comprises a tunnel cover 20 and a mobile fan 21. The tunnel cover 20 has an opening 29 through which the fan 21 blows air. This increases the static pressure at the cover 20, which change the direction of air at a desired direction. One of the advantages of the invention is that the tunnel cover 20 makes it possible to utilise considerably smaller mobile fans 21 to ventilate a tunnel 1 in the event of fire or emission of gases than when using earlier known techniques.

An elevator cabin with an integrated ventilation system. A fan is attached to the elevator cabin and a vertical side wall of the elevator cabin has a plurality of distributed ventilation holes. At least one air channel element is attached to the side wall, so that the air channel element together with the adjacent portion of the side wall forms an air channel. An adapter element is situated between the fan and an inlet opening of the air channel for guiding air from the fan into the air channel so that the air travels from the fan through the adapter element into the air channel and through the ventilation holes into the elevator cabin.