34results about How to "Avoid rebreathing" patented technology

A mesh crib bumper enclosure having four connected vertical mesh fabric panel sections installed in a crib by suspending it from the top and bottom corners and securing it to the crib's four corner posts, the same way ropes are suspended in a boxing ring. The mesh crib bumper enclosure's four mesh fabric panels are stretched tightly between the four corner posts using a locking fastening means. The mesh fabric panels allow air to circulate through the crib, preventing the baby's exhaled carbon dioxide from building up in the crib cavity and the possibility of Sudden Infant Death Syndrome (SIDS). Each of the taut mesh fabric panels acts a trampoline surface preventing a baby from impacting the crib's balusters or getting lodged between the crib's vertical balusters and rails. Each of the mesh crib bumper enclosure's four corners receives vertical support members for vertical compression structural integrity. The mesh crib bumper enclosure's top and bottom seam edges on the head and foot sections and/or side sections receives horizontal support members for horizontal compression structural integrity. Each of the mesh crib bumper enclosure's bottom four corners uses tie string fasteners for securing the mesh crib bumper enclosure to the bottom crib rails, keeping the bottom edges of the mesh crib bumper enclosure in continual contact with the top surface of the mattress. Another embodiment of the mesh crib bumper enclosure, uses a mesh panel base attached to the four bottom edges of the mesh crib bumper enclosure. Another embodiment of the mesh crib bumper enclosure, uses a mesh panel base attached to the four bottom edges of the mesh crib bumper enclosure and a mesh panel sealable top for sealing off the top section and preventing insects and animals from entering the mesh crib bumper enclosure.

A method to maintain isocapnia for a subject. A fresh gas is provided to the subject when the subject breathes at a rate less than or equal to the fresh gas flowing to the subject. The fresh gas flow equal to a baseline minute ventilation minus a dead space gas ventilation of the subject contains a physiological insignificant amount of CO₂. An additional reserve gas is provided to the subject when the subject breathes at a rate more than the fresh gas flowing to the subject. The reserve gas has a partial pressure of carbon dioxide equal to an arterial partial pressure of carbon dioxide of the subject. A breathing circuit is applied to the method to maintain isocapnia for a subject. The breathing circuit has an exit port, a non-rebreathing valve, a source of fresh gas, a fresh gas reservoir and a reserve gas supply.

A respiratory face mask is provided suitably sized and configured to engage at least the nose portion and mouth portion of a patient's face. Gas from a gas supply and scavenging set normally used in dentistry is operatively coupled to the mask via a breathing circuit to supply fresh gas and evacuate exhaled waste gas. A gas flow compensator in the breathing circuit automatically prevents re-breathing of exhaled gas. Because the mask has a sealing cushion, contamination of the clinical room where the apparatus is being used also is avoided.

A portable device for collecting and sterilizing the flying saliva of SARS patient is composed of a face mask with air or oxygen inlet and air outlet connected to sterilizer via a tube, and a sterilizer consisting of disinfectant storage, coiled exhaust tube, and air-drawing fan installed in its exhaust outlet. Its advantages are simple structure and high effect on cutting off the infection source.

The invention discloses a cylinder head component and a compressor with the same. The cylinder head component comprises a cylinder cap, a cylinder cap cover plate, a cylinder cap gasket, a valve plate and a cover plate gasket, wherein the cylinder cap cover plate is connected with the cylinder cap; the cylinder cap gasket is arranged between the cylinder cap cover plate and the cylinder cap so as to seal a fit clearance between the cylinder cap and the cylinder cap cover plate; the valve plate is connected with the cylinder cap cover plate; a lift limiter is arranged on the valve plate; a limiting part used for pressing the lift limiter is arranged on the cylinder cap cover plate; and the cover plate gasket is arranged between the cylinder cap cover plate and the valve plate so as to seal a fit clearance between the cylinder cap cover plate and the valve plate. According to the cylinder head component in the embodiment of the invention, the flow of a refrigerant is guaranteed, so that the refrigerating capacity of the compressor is improved; the noise of the compressor can be effectively reduced, and the noise stability of the compressor is comprehensively improved; and moreover, the limiting part for limiting the lift limiter on a traditional cylinder cap is transferred to the cylinder cap cover plate, and the strength of the cylinder cap can be effectively improved.

The invention relates to a three-dimensional mask which comprises a mask unit, two hanger parts and a separating piece. The mask unit comprises a body, a nose coverage body and a chin coverage body, wherein the nose coverage body is connected at the top end of the body, and the chin coverage body is connected at the bottom end of the body. The hanger parts are respectively placed on two sides of the mask unit, and the separating piece is connected on the body. When in use, a nose usage space is formed by the body, the nose coverage body and the separating piece in a matched mode, a mouth usage space is formed by the body, the chin coverage body and the separating piece in a matched mode, and the nose usage space and the mouth usage space are separated and not communicated. By means of the three-dimensional mask, the problem that germs are repeatedly inhaled by a user can be avoided, and effect of health care can be improved.

The invention belongs to the technical field of tobacco equipment and discloses a smoke treatment device. The device includes a cigarette holder and a device body; the cigarette holder is provided with a smoke sucking passage and a smoke spitting channel which are separated from each other; the cigarette holder is arranged on the device body, and the device body is provided with a cigarette containing chamber and a smoke chamber which are separated from each other; one end of the cigarette containing chamber is in communication with the smoke sucking passage, the inner wall of the cigarette containing chamber and/or the smoke sucking passage is provided with a cigarette clamping structure, and the other end of the cigarette containing chamber is provided with an air suction port; and the smoke chamber is in communication with the smoke spitting channel, the smoke chamber is internally provided with a smoke filtering device, the smoke chamber is provided with a gas outlet, and the gas outlet is located on the exhaust side of the smoke filtering device. By means of the smoke treatment device in the embodiment, the smoke sucking passage and the smoke spitting channel are separated, and the filtering device is used for filtering smoke, so that a smoker is prevented from repeated second hand smoking during smoking, and meanwhile, harms caused by second hand smoking diffusion on surrounding people are avoided.

The invention discloses a wearable air-purifying face mask. The wearable air-purifying face mask comprises a face mask body, face mask belts, a substrate, a miniature negative-ion generator, a miniature lithium polymer battery, a USB interface, silicone tubes and a control switch. For the face mask body, a primary filtering layer is waterborne non-woven fabric, a secondary filtering layer is high-density static non-woven fabric, a tertiary filtering layer is superfine composite fibers, the two face mask belts are respectively mounted on two side edges of the face mask body, the substrate is made of polypropylene, and is positioned between the two layers of non-woven fabrics outside the right side of the face mask body, the miniature negative-ion generator is mounted on the central left side of the miniature lithium polymer battery, and the plurality of groups of silicone tubes are sewn between the outer two filtering layers. For the wearable air-purifying face mask, the miniature negative-ion generator generates small-grain-diameter anions beneficial for the human health, and achieves the air purifying capacity, the miniature lithium polymer battery can be used for providing electricity for a long time, the limitation of electricity using time is avoided, and the using range and convenience are improved.

Provided is a flat surface respirator. The flat surface respirator comprises a respirator body, a nose bridge press strip, a philtrum press strip and two ear hanging portions. The respirator body comprises a middle portion, a nose covering portion arranged at the top end of the middle portion, and a mouth covering portion arranged at the bottom end of the middle portion. The philtrum press strip is installed on the middle portion. The ear hanging portions are respectively arranged on two sides of the respirator body. Therefore, using space of a nose portion and using space of a mouth portion are separated and are not communicated, pathogenic bacteria can be prevented from being repeatedly inhaled by a user, and a health care effect can be improved.

The invention discloses an assistant breathing device for the mask wearing condition. The assistant breathing device comprises a support frame, an output air pipe, an air delivery pipe and an air blower, wherein the two ends of the support frame are each provided with a binding hole for mounting an elastic band, the lower end of the support frame is provided with two support frame lifting lugs, and the support frame lifting lugs are used for mounting and fixing the output air pipe; one end of the output air pipe is closed, the other end of the output air pipe is connected with the air deliverypipe, and the output air pipe is upwards provided with air delivery ports; the air delivery pipe is connected with an output port of the air blower, a suction inlet of the air blower is provided witha filter screen, and a motor of the air blower is connected with a power plug through a wire. According to the assistant breathing device, filtered and qualified fresh air is conveyed into the part near the nostrils through the pipe, foul air remaining in a cavity formed between the face of a human body and a mask is blown away at the time of reducing the breathing resistance to prevent the foulair from being sucked into the body, the breathing efficiency is improved, and the adverse effects such as oxygen deficiency and chest distress caused by wearing the masks on people is relieved or eliminated.

A patient valve for ventilating a patient with a ventilator, including a first valve element having at least one connection, wherein the at least one connection is oriented with the central axis thereof at an angle deviating from the vertical position in relation to the patient valve central axis, such that a shortened patient valve having a reduced dead space volume is supported.

This invention is a device to be used with a system for supplying anaesthetic or respiratory gases into the airway of a human or an animal. This device is a face mask, which includes a main body or ‘shell’ which is lined with one or more air filled cuffs of which at least one cuff is closely reflecting the airway pressures generated inside the shell during the various phases of the respiratory cycle and is inflated by the gases supplied directly from the anaesthesia or ventilator circuit through a specialised adaptor and a dedicated inflation port. Many other advantages of the invention will be apparent from reading the description which follows in conjunction with the accompanying drawings

The invention relates to an engine heat dissipation system used for a railway engineering mechanical vehicle. The engine heat dissipation system comprises a radiator assembly (1), a bracket assembly (2) and a movable shutter (5), wherein the radiator assembly (1) is supported by the bracket assembly (2); the radiator assembly (1) comprises a radiator framework (9), an electric motor (6), a heat dissipation fan (7) and a radiator core body (8) which is horizontally arranged on the top of the radiator assembly (1), so that floor space is saved; four asynchronous motors drive the heat dissipation fan (7) to dissipate heat for the radiator core body (8), and the heat dissipation fan (7) sucks air inside a vehicle body and then perpendicularly blows the air to the outside of a vehicle top after passing through the radiator core body (8), so that exchange between air inside the vehicle body and air outside the vehicle body can be effectively promoted, and hot air is prevented from being repeatedly sucked into the vehicle body.

The invention discloses a manipulator suction cup with auxiliary bearing mechanisms. The manipulator suction cup with the auxiliary bearing mechanisms comprises a suction board, and a plurality of suction points in a matrix mode are arranged on the suction board; the four corners of the suction board are each provided with one auxiliary bearing mechanism; each auxiliary bearing mechanism comprisesa hollow columnar mounting rod vertically fixed to the lower surface of the suction board, and a rotary shaft is arranged inside a cavity of each mounting rod and is driven by a motor installed on the upper surface of the suction board to rotate; a cross rod is arranged on the lower side of each mounting rod; a containing groove is formed in one side of each cross rod; the inner wall of each containing groove is connected with fan-shaped bearing cloth; a guide rod perpendicular to each rotary shaft is fixed to the position, at the height corresponding to the corresponding containing groove, of the rotary shaft; and the other sides of the fan-shaped bearing cloth are connected with the guide rods. When the manipulator suction cup with the auxiliary bearing mechanisms sucks boards, the fourcorners of the flexible boards can be borne, the success rate of board adsorption is improved, and the working efficiency of a manipulator is improved advantageously.

The invention relates to hoisting equipment for a river channel. The hoisting equipment comprises a driver, a connecting rod, a lifting device, a rotating motor, a lifting hook and a desilting protection device, wherein the connecting rod is a detachable limited swing connecting rod, and the desilting protection device is used for cleaning silt at the river bottom through a water suction and injection nozzle. The equipment disclosed by the invention can be suitable for a complicated environment in the river channel, which makes it possible to hoist objects at the river bottom safely.

The invention provides a glue-attached water-squeezing roller with a groove, a mopping device adopting the glue-attached water-squeezing roller and environmental sanitation equipment. The glue-attached water-squeezing roller with the groove comprises a rotating drum, wherein the rotating drum is a straight circular pipe body; and at least one rubber roller, wherein the at least one rubber roller covers the outer surface of the pipe body of the rotary drum to form at least one groove, and the groove is sunken towards the rotary drum. An adhesive layer is arranged on the surface of the adhesive-attached water-squeezing roller with the groove, so that slipping is prevented; when water is squeezed out of the split type mopping stick, the whole mopping stick can be exactly and completely clamped into the tooth-shaped groove of the glue-attached rotating roller with the groove, on one hand, a good water squeezing effect can be achieved, on the other hand, the supporting and power-assisted rotating effects on the mopping stick are achieved, it is guaranteed that the whole mopping stick rotates synchronously, and the mopping stick is prevented from being squeezed, pulled and deformed; meanwhile, the conveying belts at the two ends of the mopping stick are prevented from being blocked and bounced.