1740 results about "Ventilation tube" patented technology

The invention is directed to a ventilation interface, which includes a cannula having one or more nasal prongs, a ventilation tube connected to the cannula and headgear. The cannula is secured onto the patient through one or more arced couplers positioned between the cannula and headgear. The cannula has a first side wall, a second side wall and a top wall which form a reservoir. The top wall includes a first portion, a second portion and a notch positioned between the first portion and second portion. The ventilation tube includes one or more bleed ports and provides breathable gas to a patient. The headgear includes a first strap and a second strap. The first strap includes a first portion and second portion that contains two or more slots to connect the second strap. Each portion of the first strap includes an inner layer and an outer layer.

The invention relates to a three-arm tube system (11) for a ventilation appliance (13) suitable for invasive ventilation. Such a ventilation appliance comprises an active inhalation valve and an active exhalation valve (29). The tube system (11) comprises an inhalation tube arm (17), an exhalation tube arm (27) and a ventilation tube arm (37) for attachment to a mask (57), and also a flow sensor (23). According to the invention, a defined leakage (39) is established in the ventilation tube (37), and the flow sensor (23) is arranged between leakage (39) and mask (57). The invention further relates to a ventilation appliance having such a tube system, and to a method for operating a ventilation appliance.

Improved methods and devices are described for sensing the respiration pattern of a patient and controlling ventilator functions, particularly for use in an open ventilation system. A ventilation and breath sensing apparatus may include a ventilation gas delivery circuit and a ventilation tube coupled to the ventilation gas delivery circuit. A plurality of pressure sensing elements may be separated by a distance and may produce independent signals. The signals may be used to detect pressure differentials between the plurality of pressure sensing elements. Sensing ports may be located in an airway, and connected to transducers that are valved to optimize sensitivity and overpressure protection. Airway pressure and flow can both be obtained and used to optimize ventilator synchronization and therapy.

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

A non-tracheal ventilation tube includes a multi-lumen tube shaft having a proximal end and a distal end, a proximal cuff and a distal cuff. The multi-lumen tube shaft is separated into a ventilation channel extending from a proximal ventilation opening to a distal ventilation opening, a suction channel extending from a proximal suction opening to a distal suction opening, and an inflation channel. The proximal cuff is attached to the tube shaft and is connected to the inflation channel for inflation and deflation. The distal cuff is attached to the tube shaft on the distal side of the proximal cuff and is connected to the inflation channel for inflation and deflation. The proximal suction opening and the proximal ventilation opening are located on the proximal side of the proximal cuff. The distal suction opening is located on the distal side of the distal cuff. The distal ventilation opening is located between the proximal cuff and the distal cuff. The outside diameter of the tube shaft decreases between the proximal cuff and the distal cuff due to the ending of the ventilation channel.

An electronic cigarette includes an inhalation rod with a cavity, a mouthpiece assembly, an e-liquid accommodating assembly and an atomization assembly. The mouthpiece assembly, the e-liquid accommodating assembly and the atomization assembly are installed in the cavity of the inhalation rod. Between the mouthpiece assembly and the atomization assembly disposes a ventilation tube capable to guide the atomized e-liquid from the atomization assembly to the mouthpiece assembly. The mouthpiece assembly includes a filter. On an inner wall of the cavity of the inhalation rod along the axial direction thereof disposes a first mounting part. The filter or on other components fixing connected with the filter disposes a second mounting part. The first mounting part and the second mounting part are disposed adjacent to each other. The connection by mechanical mechanism does not need to use glue or other adhesive containing harmful ingredients.

An airway adapter suitable for use with patients having low tidal volumes, e.g., neonates, which minimizes deadspace in the airway and promotes smooth flow of gases through the adapter. The adapter includes a first portion adapted to couple to a tubular adapter, such as an endotracheal tube adapter, and a second portion adapted to couple to a ventilation tube. A longitudinally compressible member is coupled to the first portion to minimize deadspace in the adapter. A portion of the compressible member resiliently contacts and seals against a tubular adapter upon assembly of the airway adapter therewith.

Enhanced airbag modules and associated methods are provided. An airbag module according to the invention may have a cushion with an inflatable protection zone and a flexible venting tube coupled to the inflatable protection zone. A closure mechanism may be used to compress the flexible venting tube against an anchoring member, such as a housing of the airbag module or a vehicle feature, until venting through the flexible venting tube is needed. The closure mechanism may then be actuated, for example, by igniting a pyrotechnic within a specially designed bolt of the closure mechanism. The bolt may, for example, have a bore with a pyrotechnic initiator molded-in-place within the bore. The bolt may fracture to open the closure mechanism, thereby permitting inflation gas to flow out of the inflatable protection zone via the flexible venting tube.

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

The invention relates to a spring rubber vibration-isolation hanger used for vibration reduction and noise reduction of heating ventilation pipes, which is installed on the indoor top of a building. The hanger includes a first frame, a vibration isolation pad laid on the inner wall of the first frame and tightly wrapping the abdomen of the heating ventilation pipe, and two sets of suspension vibration isolation components. The first frame includes a U-shaped pipe clip and a crossbeam located below the heating and ventilation pipe and fixedly connected to the opening end of the U-shaped pipe clip to form a closed frame structure with the U-shaped pipe clip. The suspension vibration isolation assembly includes an upper suspension rod, a spring vibration isolator and a lower suspension rod connected vertically in sequence. The invention can not only play a good role in vibration isolation and shock resistance for the whole heating and ventilation pipe, but also can play a good role in vibration isolation and noise reduction for the local air pipe, and is especially suitable for the main control room of the nuclear power plant and the film and television workstation, etc. It is suitable for occasions that have higher requirements for indoor equipment safety and acoustic environment.

Construction features of roadbed are as follows: building vent-pipes perpendicular to direction of roadbed in certain depth of road embankment; installing ventilating units of automatic controlling temperature at end part of vent-pipe; setting up thermal-protection material between vent-pipes / entire up part of vent-pipes with earth material being covered and tamped. The said automatic controlling ventilating units carries out heat exchange between inside roadbed and airflow in low temperature outside. The thermal-protection material protects ever frost effectively. Thus, the invention prevents frost heave and thaw collapse caused by season change so as to keep stability of roadbed in high level. The invention solves issue of carrying construction in zone of frozen earth.

The invention discloses a strengthening ventilation heat-insulation roadbed, characterized in that compacting sand-gravel-soil cushion is set on the compacting native surface; transverse concrete air ducts through wall with automatic air door controlled by temperature are set on the sand-gravel-soil cushion in a certain distance; crushed stone layer is set between air ducts through wall and above them; earthwork cloth is put on the horizontal crushed stone layer; heat insulation material is set on the earthwork cloth; and compacting embankment fill is filled on the heat insulation material. In the invention air ducts through wall are set in the crushed stone layer. In winter, by using lower temperature in frozen earth area and bigger wind speed through permeable hole of air duct the effect of convective cooling of air in the crushed stone layer is strengthened and there is strong ventilation cooling effect in air duct through wall itself. Two are combined with each other and are used by each other to decrease the temperature of frozen soil under the roadbed. In summer, the heat insulation material, the crushed stone layer and air duct through wall with air door controlled by temperature can play a role of thermal screen effect so as to prevent heat energy entering into embankment. At last storing cooling energy to the utmost is achieved; the temperature of frozen soil is decreased, the melting of frozen soil is avoided and the stability of embankment of frozen soil is ensured.

An airway adapter suitable for use with patients having low tidal volumes, e.g., neonates, which minimizes deadspace in the airway and promotes smooth flow of gases through the adapter. The adapter includes a first portion adapted to couple to a tubular adapter, such as an endotracheal tube adapter, and a second portion adapted to couple to a ventilation tube. A longitudinally compressible member is coupled to the first portion to minimize deadspace in the adapter. A portion of the compressible member resiliently contacts and seals against a tubular adapter upon assembly of the airway adapter therewith.

Improved ear ventilation tubes and spring loaded insertion devices for use with the ventilation tubes whereby perforation and insertion steps take place substantially simultaneously with an aspiration step following.

A pipe coupling for components of a venting system comprising a male pipe member on an end of a first component and a female pipe member on a corresponding end of a second component. The male pipe member comprises an inner flue pipe having a compressible gasket surrounding the inner flue pipe proximate an external end of the inner flue pipe, an external venting pipe surrounding the inner flue pipe and brackets linking the inner flue pipe to the external venting pipe. The female pipe member receives the male pipe member and comprises an inner flue sleeve being sized larger than the outer diameter of the flue pipe at an outer end of the sleeve. The inner flue sleeve remains in circumferential contact with the compressible gasket when the male pipe member is inserted into the female pipe member.

The invention relates to a high-power offshore wind generating set tower bottom cooling system and a control method. The cooling system comprises a water cooling circulation system and an air cooling circulation system. A heat exchanger of the water cooling circulation system is located outside a tower. The other parts of the water cooling circulation system are all sealed inside the tower. The interior of the tower is divided into three layers from top to bottom through two platform partition plates. Two water cooling energy consumption assemblies are located on the bottom layer and the highest layer respectively. Two air cooling power consumption devices are located on the platform partition plate of the middle layer. Fans below two heat exchangers inside the tower drive air inside the tower to form a circulating wind path between venting pipes and the two air cooling power consumption devices. Cool-heat exchange is conducted between cooling liquid in the heat exchangers inside the tower and the heat exchanger outside the tower, and intra-tower wind path circulation and water path circulation are coupled through the heat exchangers inside the tower. By the adoption of the integrated closed type circulation cooling system, devices inside the tower are prevented from being corroded in a salt-spray environment, a plurality of liquid cooling assemblies at the bottom of the tower are cooled simultaneously, and the air at the bottom of the tower is cooled through the heat exchangers inside the tower in cooperation with the intra-tower air circulation. The cooling system is suitable for simultaneous energy saving in the special offshore environment.

The invention relates to the technical field of keyboards, in particular to a self-cleaning keyboard. The keyboard comprises a keyboard body and keys; key holes are arranged in the keyboard body, and the keys are located on the key holes; an airbag pad is arranged on the keyboard body, and a plurality of through holes for the keys to be inserted in the key holes are correspondingly formed in the airbag pad; each key comprises an upper part for a finger to tap and a lower part capable of sliding up and down in each key hole; springs are arranged in the key holes; the airbag pad is located between the upper parts and the keyboard body; air discharging parts capable of discharging air during pressing of the airbag pad and an air feeding part capable of feeding the air during release of the airbag pad are arranged on the airbag pad; the air discharging parts are uniformly arranged in circumferential directions of the keys; a ventilation tube is arranged on a side surface of the airbag pad; an air inlet one-way valve is arranged on the ventilation tube; and a ventilation cover is connected to the ventilation tube. According to the scheme, dust around the keys can be cleaned when the keys are tapped; people can dismount the keys once conveniently; and a hand can be prevented from sweating.

Delivery systems and methods of creating an accessory maxillary ostium and implanting a ventilation tube for purposes of ventilation, irrigation, infusion or procedural work are described. The delivery systems include an introducer and an associated ventilation tube. An irrigation and / or infusion catheter may be advanced through the ventilation tube in order to irrigate or express the contents of the sinus cavities. A secondary irrigation and / or infusion catheter or a balloon catheter may be advanced through an outer irrigation and / or infusion catheter, deeply into the sinus cavity, in order to irrigate or express the contents of the sinus cavities. Moreover, the balloon catheter may alternatively or additionally be employed to for dilation of the natural ostium. Still further, a device for delivering drugs, fluids or the like, may be coupled to the ventilation tube for delivery of same.

Disclosed are soft, high refractive index, acrylic materials. These materials, especially useful as intraocular lens materials, contain one or more aryl acrylic hydrophobic monomers as principal device-forming monomers and a tack-reducing macromer additive. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.

A connecting system for connecting a ventilation tube to a respiratory humidifier (1) is provided, wherein the ventilation tube comprises an electrical line and the respiratory humidifier (1) comprises a housing (2) and a liquid container (4), the connection system including a first connection element (6) arranged on the liquid container (4); a first electrical contact element (24) arranged on the housing (2); and a second connection element (14), which can be connected to the ventilation tube (7, 9) and comprises a second electrical contact element (16), which can be connected to the electrical line of the ventilation tube (7, 9); wherein the first connection element (6) and the second connection element (14) can be connected to each other in a first connecting direction in such a way that, by establishment of the pneumatic connection of the ventilation tube (7, 9) to the liquid container (4), the electrical connection of the first contact element (24) to the second contact element (16) is produced. The electrical connection of the first contact element (24) to the second contact element (16) can be established in a second connecting direction different from the first connecting direction, preferably in a direction essentially perpendicular to the first connecting direction.

A cleaning device, system and method for use with an ETT or tracheostomy ventilation tube 60, a ventilator machine 900, a source(s) 602 of fluid (for example, pressurized or unpressurized) and a source(s) of suctioning 603 is disclosed. In some embodiments, the cleaning device is useful for cleaning an inner surface of the ventilation tube 60 and / or for preventing or hindering the accumulation of biofilm thereon. In some embodiments, it is possible to clean biofilm or any other material on the inner surface 201 by delivering fluid into an interior of the ventilation tube, wiping the tube interior with a width-expanded wiping element (e.g. an inflated balloon) by longitudinal motion of the wiping element, and suctioning material out of the ventilation tube ventilation tube.

A vehicle cowl structure basically comprises a cowl panel and a vent pipe disposed in the cowl panel at a low drainage point on a lateral wall portion of the cowl panel. The vent pipe includes an opening that is split by a divider into an upper air passageway and a lower water drain passageway. The vent pipe also includes a mounting flange that contacts with an interior surface of the lateral wall portion and retaining projections to create a snap-fit between the vent pipe and the drainage aperture of the cowl panel. The vent pipe is also inserted into a hole formed in a vehicle body section such that a retaining member installed over the vent pipe contacts the vehicle body section around the hole and seals a space between the vent pipe and the hole of the vehicle body member.

The invention relates to a multifunctional new energy automobile motor good in dustproof and heat dissipation effects, which comprises a shell. A rotating shaft and two heat dissipation mechanisms arearranged in the shell. Each heat dissipation mechanism comprises a first bevel gear and two heat dissipation components. Each heat dissipation component comprises a second bevel gear, a rotating rod,a connecting unit, two fixing rods and a plurality of heat dissipation units. Each heat dissipation unit comprises a transmission mechanism and two ventilation mechanisms. The multifunctional new energy automobile motor good in dustproof and heat dissipation effects drives the rotating rod in the heat dissipation mechanism to rotate through the rotation of the rotating shaft. By means of the transmission mechanisms in the heat dissipation units, first pistons in heat dissipation mechanisms on the two sides are driven to move in a reciprocating mode in opposite directions. As a result, duringthe movement process of the first pistons, dusts on the inner wall of a vent pipe can be removed. Moreover, a filter screen and a cleaning plate can be driven to move relative to each other, so that dusts on the filter screen can be removed conveniently. The motor is smooth in ventilation effect and good in dustproof and heat dissipation effects. The practicability of the motor is improved.

The invention is a safety device, and a container utilizing such a device, for release of pressure from a closed container, when the container is heated. The container has a ventilation opening, sealed by a disk which is made to melt at a critical temperature. The disk is manufactured from a plastic and has at least one recess in the area of the ventilation opening. The ventilation opening is situated at one end of a ventilation pipe, wherein the pipe is at least partially overlapped by the affixing device and detachably connected to it. The ventilation pipe has an exterior threading located at the end of the pipe overlapped by the affixing device. The detachable connection can be made by screwing the sleeve nut onto the exterior threading. The disk has a design of varied geometry embedded therein; the design creating varying surface thicknesses for the disk, which allow the disk to melt at varying rates depending upon the temperature of the interior of the container.

A baby bottle for preventing the release of endocrine disrupters is disclosed. The baby bottle includes a glass vessel containing milk. A protective cover has shock absorbing members to protect the glass vessel, and includes left and right cover bodies having a fastening protrusion and a fastening hole, respectively. An air inlet packing is placed on the upper end of the glass vessel to control inflow of external air, and is coupled to a ventilation tube and a nipple. A support cap is fastened to the upper end of the protective cover in such a way that the nipple is in close contact with the upper portion of the air inlet packing, when the air inlet packing is in close contact with the glass vessel. Thus, the baby bottle protects a baby from endocrine disrupters, and prevents air from flowing backwards during feeding, thus preventing the baby from spitting

The invention relates to a photovoltaic blind (1) comprising a rotating drum (2) and several flexible photovoltaic panels (10-12) that can be rolled up and unrolled around this rotating drum to close respectively unfold the blind. The device comprises a ventilation tube (19) and a ventilator (190) powered by the photovoltaic panels in order to create an air flux under the photovoltaic blind.

The invention discloses application of a transparent wall vent pipe-massive crushed stone layer cooling and insulating composite road bed in a wide road. The structure of the road bed consists of a transparent wall vent pipe, a massive crushed stone layer, geotextile, an insulating layer and road bed filling soil; the massive crushed stone layer is paved on a compacted natural ground surface; the transparent wall vent pipe is embedded into the top of the massive crushed stone layer; and then, the geotextile, the insulating layer and the road bed filling soil are paved on the massive crushed stone layer in turn. By using the transparent wall vent pipe, the temperature of the top of the massive stone layer is reduced, the temperature difference between the upper and lower boundaries of the massive stone layer is increased, natural convection of the massive stone layer in a cold season is enhanced, and the cold energy absorption amount of the road bed in the cold season is improved; and by combining the heat insulation property of the insulating layer, the absorption amount is effectively controlled in a warm season, and the net heat release amount of the road bed in a freezing and thawing cycle is greatly improved so as to realize reduction of underlying soil temperature of the wide high-grade road bed, balance the temperature field, promote the upper limit of frozen soil and meet the special requirement of stability of the wide high-grade road bed in a high-temperature permafrost.