30results about "Oxygen respirators" patented technology

A demand regulator for a breathing apparatus may include a primary lever arm can include a cam element having a first profile and a second profile, the primary lever arm being pivotable; and a valve configured to regulate a flow of breathing gas through the demand regulator. The valve may include a valve member being displaceable so as to regulate the flow of breathing gas. The cam element of the primary lever arm is configured to displace the valve member during pivoting of the primary lever arm. Pivoting of the primary lever arm through a first arc displaces the valve member at a first displacement rate; and pivoting of the primary lever arm through a second arc displaces the valve member at a second displacement rate. A breathing apparatus can include a demand regulator and a diaphragm-actuated lever arm. A method for designing a cam element profile is disclosed.

A protective hood in a vacuum bag including a flexible shell that is folded when stored and when unfolded is pulled through an open base of the flexible shell and over the head of a user. The hood includes a visor and an articulated device rigidly attached to the open base to be placed around the neck of the user when the flexible shell is pulled over the head of the user. The articulated device includes at least two rigid portions connected by a joint that allows these two rigid portions to transition from folded, which inhibits the head of the user from entering the hood, to unfolded, which allows the head of the user to enter the hood. The hood includes a handle rigidly attached to the top of the flexible shell to be accessible to the user when the flexible shell is folded.

The utility model relates to a chemical oxygen generating tank adapting to a low-temperature environment, which comprises a tank body, an oxygen generating tank liner is arranged in the tank body, radiating fins are distributed on the outer wall of the oxygen generating tank liner, and the top and the bottom of the oxygen generating tank liner are respectively and correspondingly connected with an air inlet sealing plug and an air outlet sealing plug; an isolation cylinder is fixed in the oxygen generation tank liner, and air holes of different specifications are distributed in the isolation cylinder; an annular airflow channel is formed between the oxygen generation tank liner and the isolation cylinder; a plurality of partition plates are arranged in the isolation cylinder, the interior of the isolation cylinder is divided into a plurality of reaction zones, and each reaction zone is filled with a solid medicament; the top of the isolation cylinder is provided with an air inlet filtering assembly, the middle of the isolation cylinder is provided with an air outlet filtering assembly, the air outlet sealing plug and the air outlet filtering assembly are oppositely arranged, and the annular airflow channel communicates with an air outlet channel corresponding to the air outlet sealing plug. The oxygen generation medicine tank reduces the air suction temperature and meets the low-temperature using performance.

The utility model relates to the technical field of tunnel construction safeguard cabin equipment, in particular to an oxygen generation medicine box of a safety type tunnel safeguard cabin, which is characterized in that the upper end of a reaction cabin is opened, a rotating wheel cabin is inserted into the upper end opening of the reaction cabin, the lower end of the rotating wheel cabin is rotationally arranged on the lower inner wall of the reaction cabin through a rotating shaft, and an ignition rod is rotationally arranged on the wall of the reaction cabin through a bearing; an exhaust port is formed in the reaction bin, the side end of the ignition rod is inserted into the exhaust port, a waste discharge port is formed in the side wall of the reaction bin, and the waste door is hinged to the side edge of the waste discharge port through a hinge and movably covers the waste discharge port; according to the medical kit, the rotating wheel type oxygen candle feeding structure is arranged, the corresponding feeding storage structure is arranged, meanwhile, the corresponding ignition device is arranged in cooperation with use of oxygen candles, and therefore the oxygen candles can be conveniently taken for emergency oxygen supply when the medical kit is used.

The present invention relates to an industrial dust mask including an oxygen generating element, and more particularly, to an industrial dust mask including a mask body, a fixing band for fixing the mask body to a face of a wearer, an exhaust unit formed in an outer surface area of the mask body and provided with an exhaust port for discharging exhaled air of the wearer to the outside, and an oxygen generating element inserted into an area of the exhaust unit, which receives water vapor and carbon dioxide generated by breathing of the wearer and generates oxygen by a chemical reaction. A through hole is formed in the mask body and the exhaust unit so that a part of the exhaled air of the wearer discharged to the outside through the exhaust port of the exhaust unit is transferred to the oxygen generating element inserted in the exhaust unit through the through hole to generate oxygen. The oxygen generated by the oxygen generating element is supplied to the wearer through the through hole when the mouth and nose of the wearer inhale.

Disclosed herein is a single-use container for forming a therapeutic amount of nitric oxide to be delivered by an apparatus to a subject, wherein the single-use container comprises: a housing defined by a proximal edge and a distal edge and comprising: a first chamber comprising N2O4, wherein the first chamber is sealed; a second chamber comprising an antioxidant material; and wherein the first chamber and the second chamber are positioned relative to each other such that when the single-use container is inserted into the apparatus and is activated, the first chamber is unsealed to allow the liquid N2O4 to be in fluid communication with the antioxidant material in the second chamber to produce nitric oxide.

The utility model discloses a plateau heat preservation oxygen generation vest which comprises a vest body, a heating device is arranged on the outer side of the back of the vest body, the heating device is respectively connected with an inlet end and an outlet end of a circulating water pipe, and the circulating water pipe extends between an inner interlayer and an outer interlayer of the vest body and spirally ascends in the interlayers. An oxygen generating device is arranged on one side of the heating device in parallel, the oxygen generating device is connected with an oxygen guide pipe, the oxygen guide pipe extends into the interlayer and surrounds the circulating water pipe, the outlet end of the oxygen guide pipe extends out of the neckline of the vest body, and the extending end of the oxygen guide pipe is connected with a breathing mask. The oxygen generating device has the advantages that oxygen is generated on the basis of chemical reaction, the oxygen generating device is high in oxygen generating efficiency, simple in structure, convenient to use and applicable to special environments, circulating water can be heated by the aid of the heating device, so that a certain heat insulation effect is achieved for users, and oxygen is heated to be conveniently absorbed by the users.

The invention relates to a protective hood (1) for use in a bag, in particular a vacuum bag, the hood comprising: a flexible housing (2) configured to be stored in a folded state and to be placed on the head of a user in an expanded state through an open base (3) of the flexible housing; goggles (7); a hinge device rigidly attached to the open base and configured to be positioned around the neck of the user when the flexible housing is worn on the head of the user, the hinge device comprising at least two rigid components connected by a joint, the two rigid components are allowed to change from a folded position for preventing the head of the user from entering the hood (1) to an unfolded position for allowing the head of the user to enter the hood (1); a handle (10) attached to the flexible housing, the handle being positioned on top of the flexible housing (2) so as to be accessible by a user when the flexible housing is in the folded state.

A portable oxygen generation system is provided that includes a reaction chamber, a supply system for supplying and controlling a hydrogen peroxide solution to the reaction chamber, and a cooling / condensing system for cooling the hot oxygen and water vapor leaving the reactor and condensing away the water. The portable chemical oxygen generation system produces breathable, humidified oxygen that is substantially free of hydrogen peroxide and other contaminants at a controlled flow rate and temperature for extended periods of time.

The utility model belongs to the technical field of respirators, and particularly relates to an oxygen production tank which comprises a tank body for air circulation, a plurality of partition plates are arranged in the tank body in the air flowing direction, and the partition plates are arranged in parallel in the direction perpendicular to the air flowing direction. A reaction flow channel is formed in a gap between every two adjacent partition plates, the side wall of each reaction flow channel is provided with groove positions for positioning a medicament, the groove positions are in a long strip shape in the gas circulation direction, and the multiple groove positions are sequentially arranged side by side in the direction perpendicular to the gas circulation direction; the plurality of slots on the two adjacent clapboards are arranged in a staggered manner; according to the utility model, the medicament can be ensured to be firmly fixed and stable in the reaction flow channel without moving, so that the influence of dust generated by the movement of the medicament on the breath of a user can be greatly reduced; and the reaction can be performed in sequence along the flowing direction of the gas, so that the overall reaction balance of the medicament is ensured, the use efficiency of the medicament is improved, and waste is avoided.

Title: Protective hood The subject of the invention is a protective hood (1) in a bag, in particular vacuum-packed, this hood comprising: - a flexible envelope (2) configured to be stored in a folded state and to be put on, in an unfolded state, through an open base (3) of the flexible envelope, on the user's head, - a visor (7), - an articulated device secured to the open base and configured to be placed around the user's neck when the flexible envelope is put on the user's head, the articulated device comprising at least two rigid parts connected by a joint allowing these two rigid parts to pass from a folded position preventing the user's head from passing into the hood (1) to an unfolded position allowing the user's head to pass into the hood, - a handle secured (10) to the flexible envelope,this handle being placed on a top of the flexible envelope (2) in a manner accessible to the user when the flexible envelope is in the folded state. Figure for the abstract: Fig. 1,

To improve a portable system for production of oxygen.SOLUTION: A portable oxygen generating system is provided which comprises a reaction chamber, a feed system for providing and controlling hydrogen peroxide solution to the reaction chamber, and a cooling / condensing system for cooling the hot oxygen and water vapor leaving the reactor and condensing and removing water. The portable chemical oxygen generation system produces humidified, breathable oxygen, which is substantially free of hydrogen peroxide and other contaminants, at a controlled flow and temperature over an extended period of time.SELECTED DRAWING: Figure 8

The present invention relates to an industrial dustproof mask including an oxygen-generating member and, more particularly, the industrial dustproof mask comprising: a mask body; a fixing band which allows the mask body to be fixed to the face of a wearer; an exhaust unit formed in one area of the outer surface of the mask body and having an exhaust port formed therein so that exhalation of the wearer can be discharged to the outside; and an oxygen-generating member which is inserted into one area in the exhaust unit, receives water vapor and carbon dioxide generated from respiration of the wearer to cause a chemical reaction to thus generate oxygen, wherein a through-hole penetrating the mask body and a region of the exhaust unit is formed, some of the wearer's exhalation discharged to the outside through the exhaust port of the exhaust unit is transferred to the oxygen-generating member inserted into the exhaust unit through the through-hole to generate oxygen, and the oxygen generated from the oxygen-generating member is supplied to the wearer through the through-hole, when inhalation occurs through the mouth and nose of the wearer.

Various systems and devices for generating nitric oxide are disclosed herein. According to one embodiment, the device includes a body having an inlet, an outlet, and a porous solid matrix positioned with the body. The porous solid matrix is coated with an aqueous solution of an antioxidant, wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the solid matrix to convert nitrogen dioxide in the gas flow into nitric oxide. The porous solid matrix allows the device to be used in any orientation. Additionally, the porous solid matrix provides a rigid structure suitable to withstand vibrations and abuse without compromising device functionality.

The invention relates to a protective hood (1) in a bag, in particular a vacuum bag, the hood comprising: - a flexible shell (2) configured to be stored in a folded state and to be pulled, in an unfolded state, through an open base (3) of the flexible shell and over the head of the user; - a visor (7); - an articulated device rigidly attached to the open base and configured to be placed around the neck of the user when the flexible shell is pulled over the head of the user, the articulated device comprising at least two rigid portions connected by a joint that allows these two rigid portions to transition from a folded position, which prevents the head of the user from entering the hood (1), to an unfolded position, which allows the head of the user to enter the hood; - a handle (10) rigidly attached to the flexible shell, this handle being placed on top of the flexible shell (2) in such a way as to be accessible to the user when the flexible shell is in the folded state.

The present invention relates to a wet smoke-proof mask capable of generating oxygen and, specifically, comprises: a mask body formed in a half-folded shape and, when unfolded, formed in a shape that simultaneously shields the mouth and nose of a wearer; an exhaust valve which is provided in one area of the outer surface of the mask body, and which has an exhaust port so that the exhaled air of the wearer can be discharged to the outside; a filter unit formed at the inner side of the mask body; and an oxygen generation unit, which is provided on the outer surface, of the filter unit, positioned to be adjacent to the face of the wearer, so as to supply, to the wearer, oxygen generated when the mask body is unfolded, wherein the oxygen generation unit includes: a Tyvek filter made of a Tyvek material and formed in a size corresponding to the size of the filter unit; a reaction solution supply unit which is positioned within the Tyvek filter, and which includes a plastic pack containing a reaction solution and porous fibers covering the plastic pack; and an oxygen generation member formed of an oxygen-generating compound that receives the reaction solution supplied from the reaction solution supply unit and causes a chemical reaction to generate oxygen, wherein one region of the plastic pack of the reaction solution supply unit is torn when the mask body is unfolded, so that the reaction solution is supplied to the oxygen-generating member so as to generate oxygen.

Provided are: a mask including an oxygen-generating composition usable in a disaster situation such as a fire or in alpine environments in which oxygen is in short supply; and a manufacturing method thereof. The mask including an oxygen-generating composition comprises: a filter sheet; an oxygen-generating container coupled to the filter sheet; an oxygen-generating material stored in a sealed state inside the oxygen-generating container; and wearing straps connected to both ends of the filter sheet, wherein the wearing straps include two or more first wearing straps and second wearing straps of different length.

The present invention relates to an oxygen generating composition, which contains potassium peroxide (KO2) and calcium hydroxide (Ca(OH)2), and is characterized in that the weight ratio of the potassium peroxide to the calcium hydroxide is in the range of 8:2 to 4:6.

The utility model relates to the technical field of respiratory protection equipment, in particular to a chemical oxygen generating respirator which comprises a mask, an oxygen generating box and an air bag. An air outlet pipe of the mask is communicated with an air inlet of the oxygen generation box; an air outlet of the oxygen generating box is communicated with an inlet of the air bag; an outlet of the airbag communicates with an air inlet pipe of the mask; a conical heat dissipation frame is arranged in the middle of the top end of the air bag and penetrates through the air bag in the thickness direction of the air bag. The inlet is formed in the bottom end of the airbag; an outlet of the air bag is formed in the top end of the air bag and located above the conical heat dissipation frame. By ingeniously arranging the mounting positions of the inlet and the conical heat dissipation frame on the air bag and the conical structure of the conical heat dissipation frame, the flowing path of air in the air bag is prolonged, efficient heat dissipation is conducted through the conical heat dissipation frame, and the cooling effect of the air bag on oxygen is improved.

There is disclosed a demand regulator for a breathing apparatus comprising: a primary lever arm comprising a cam element having a first profile and a second profile, the primary lever arm being pivotable; and a valve configured to regulate a flow of breathing gas through the demand regulator, the valve comprising a valve member being displaceable so as to regulate the flow of breathing gas; wherein the cam element of the primary lever arm is configured to displace the valve member during pivoting of the primary lever arm; and wherein: pivoting of the primary lever arm through a first arc corresponding to the first profile of the cam element displaces the valve member at a first displacement rate; and pivoting of the primary lever arm through a second arc corresponding to the second profile of the cam element displaces the valve member at a second displacement rate; the second displacement rate being different to the first displacement rate. Also disclosed is a breathing apparatus comprising a demand regulator, a diaphragm-actuated lever arm for a demand regulator, and a method for designing a cam element profile.

The portable wearable oxygen generation suit comprises a coat, a power source, an oxygen generator, an adapter tube and a display screen, the display screen is fixedly arranged on a first front piece of the coat, and the adapter tube is fixedly arranged on a second front piece of the coat; the two adjacent side edges of the first front piece and the second front piece are buckled through a buckling assembly. The power supply is arranged on the first front piece and / or the second front piece; the oxygen generator is fixedly arranged on the rear piece; the power supply is electrically connected with the oxygen generator; the oxygen generator is connected with the display screen through a signal line, an oxygen generation outlet of the oxygen generator is communicated with one end of the adapter tube through the connecting tube, and the other end of the adapter tube is communicated with the oxygen inhalation mask. According to the portable wearable oxygen generation suit, the power supply, the oxygen generator and the adapter tube are fixedly arranged on the coat, so that the oxygen generator and the oxygen conveying hose connected with the adapter tube are stably fixed, and the portability and the application reliability of the oxygen generator are improved.

A demand regulator for a breathing apparatus includes a main lever arm including a cam element having a first profile and a second profile, the main lever arm being pivotable; and a valve configured to regulate a flow of breathing gas through the demand regulator, the valve including a valve member displaceable to regulate the flow of breathing gas; wherein the cam element of the main lever arm is configured to displace the valve member during pivoting of the main lever arm; and wherein pivoting of the main lever arm past a first arc corresponding to the first profile of the cam element displaces the valve member at a first displacement rate; and pivoting the main lever arm through a second arc corresponding to the second profile of the cam element displaces the valve member at a second displacement rate; the second displacement rate is different from the first displacement rate. A breathing apparatus including a demand regulator, a diaphragm actuated lever arm for a demand regulator, and a method for designing a cam element profile are also disclosed.

The utility model relates to the technical field of self-rescuers, and discloses a smooth-breathing reciprocating compressed oxygen self-rescuer which comprises a body, a compressed oxygen bottle and a medicine bin are arranged on the body, the medicine bin is provided with an inner cavity, medicine used for absorbing carbon dioxide is arranged in the inner cavity, and a first connector and a second connector which are communicated with the inner cavity are arranged on the medicine bin. An air bag is connected between the compressed oxygen bottle and the first connector, an oxygen outlet of the compressed oxygen bottle is communicated with the first connector through the air bag, the second connector is connected with a breathing apparatus, and the airflow directions of the first connector and the second connector are opposite when a human body breathes through the breathing apparatus. The reciprocating type compressed oxygen self-rescuer capable of breathing smoothly is simple in structure and low in production cost, and breathing is smooth when the reciprocating type compressed oxygen self-rescuer is used; when a human body breathes once, internal gas can flow through the medicament twice, so that the absorption efficiency of the medicament on carbon dioxide is improved, the absorption is more sufficient, the carbon dioxide concentration is prevented from rising too fast, and the safe use time of the self-rescuer is prolonged.

The present invention relates to a modular filter and a mask comprising the same, in which external air flows in through a terminal inflow part of the filter, and passes through the filter while moving in a wide side direction of the filter, thereby extending a movement path in the filter, therefore, the limitation on the selective removal of various pollutants and the filtering function caused by the thickness of the existing filter can be improved.

A method of generating oxygen includes introducing a hydrogen peroxide solution (at least 39.5%) into a reactor that has a passage, an oxygen outlet at one end of the passage, a water outlet at another end of the passage, and an inlet between the ends of the passage. Silver flakes are packed tightly within the passage forming interstices to accommodate fluid flow in a substantially restricted manner such that substantial fluid flow only occurs under influence of a pressure differential in the passage that exceeds a predetermined threshold value associated with the fluid. The silver flakes catalyze a decomposition reaction of the hydrogen peroxide into water and oxygen. The hydrogen peroxide and the decomposition reaction move in a stepwise, periodic manner through the interstices from the inlet toward the water outlet. The oxygen and water vapor flow toward the oxygen outlet.

The present invention relates to a tumbler equipped with an oxygen generator, in which, by removing a cap, a face air shield is exposed below the oxygen generator and is worn on the face, the face air shield is inflated by supplying compressed oxygen in an upper layer portion, hydrogen peroxide inside the oxygen generator is dropped into and supplied to a first middle layer portion as a first connection hose opens, so as to generate oxygen via a chemical reaction with a catalyst, and the generated oxygen is cooled by water accommodated in a lower layer portion via a second connection hose and then supplied to the face air shield to allow breathing.

An oxygen generator for use in a passenger aircraft comprises an oxygen generating substance for generating oxygen gas after being activated; an activating substance for activating the oxygen generating substance; a pyroelectric igniter for igniting the activating substance upon receiving an electric trigger input; a housing defining a gas-tight chamber, accommodating the oxygen generating substance, the activating substance and the pyroelectric igniter; at least two electric conductors, coupled to the pyroelectric igniter and extending through a passage in the housing between an interior of the gas-tight chamber and an exterior of the gas-tight chamber; and at least one of a gas-tight glass-to-metal sealing and a gas-tight ceramic-to-metal sealing, sealing the at least two electric conductors with respect to the housing at the passage.

Redundant electrochemical systems and methods for vehicles are described. The systems include a first electrochemical device located at a first position on the vehicle wherein the first electrochemical device is configured to generate at least one of inert gas, oxygen, and electrical power and a second electrochemical device located at a second position on the vehicle wherein the second electrochemical device is configured to generate at least one of inert gas, oxygen, and electrical power. The first electrochemical device is configured to operate in a first mode during normal operation of the vehicle and a second mode when the second electrochemical device fails, wherein in the second mode, the first electrochemical device provides the at least one of inert gas, oxygen, and electrical power for at least one vehicle critical system of the vehicle.

The utility model relates to the technical field of self-rescuers, and discloses a self-rescuer capable of quickly replacing a medicine bin, which comprises a body shell, an air bag and a breathing apparatus, the medicine bin is detachably arranged in the body shell, an inner cavity is arranged in the medicine bin, and a medicament for absorbing carbon dioxide is arranged in the inner cavity. The body shell is provided with an installation cavity used for detachably installing the medicine bin, one side of the installation cavity is provided with a placing opening used for placing the medicine bin, the body shell is provided with a first connector used for being connected with an air bag and a second connector used for being connected with a breathing apparatus, and the first connector and the second connector are both communicated with the installation cavity. The first connector and the second connector are both arranged on the side, away from the imbedding opening, of the mounting cavity, and a cover plate is detachably arranged at the imbedding opening. The self-rescuer capable of quickly replacing the medicine bin is simple in structure and low in production cost; the medicine bin is convenient to disassemble, assemble and operate, the self-rescuer can continue to be used after the medicine bin is replaced, and cost is saved.