CN111529879A

CN111529879A - Ventilation and volatilization device, breathing mask, breathing tube and breathing support equipment

Info

Publication number: CN111529879A
Application number: CN202010485843.0A
Authority: CN
Inventors: 周明钊; 庄志
Original assignee: BMC Medical Co Ltd
Current assignee: BMC Medical Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-08-14

Abstract

The invention relates to the field of medical equipment and discloses a ventilation and volatilization device, a breathing mask, a breathing tube and breathing support equipment. The ventilation and volatilization device comprises a ventilation pipe, a liquid-proof and breathable film and a gas-liquid one-way valve, wherein an internal channel of the ventilation pipe is formed into a gas flow passage, the liquid-proof and breathable film and the gas-liquid one-way valve are arranged on the gas flow passage at intervals along the axial direction of the gas flow passage, the gas flow passage comprises a flow passage section positioned between the liquid-proof and breathable film and the gas-liquid one-way valve, and at least one part of the flow passage section is a liquid absorption and volatilization part. The ventilation and liquid volatilization device can allow gas such as gas with humidity to pass through and can adsorb and volatilize liquid possibly carried by the gas to the external environment, so that when the ventilation and liquid volatilization device is used for delivering respiratory gas, condensed water possibly carried by the gas in a respiratory tube can be collected and adsorbed and volatilized to the outside, and the problem that discomfort is caused when the condensed water is blown to the face and the mouth and nose due to gathering is solved.

Description

Ventilation and volatilization device, breathing mask, breathing tube and breathing support equipment

Technical Field

The invention relates to the technical field of medical equipment, in particular to a ventilation and volatilization device, a breathing mask, a breathing tube and breathing support equipment.

Background

In recent years, with the technology of noninvasive respiratory support equipment becoming mature, noninvasive respiratory support equipment has become an important means for treating early chronic respiratory failure and chronic obstructive pulmonary disease. With the increasing development of respiratory support devices, devices have emerged that are capable of providing gases at higher humidity. When the gas of high humidity passes through breathing gas pipeline, can gather on breathing gas pipeline's internal surface and condense into the water droplet, and can form ponding phenomenon along with the gathering increase of condensate water droplet, ponding can be blown to patient's face and mouth nose department by breathing gas carrying, leads to uncomfortable feeling.

For this reason, some of the prior art techniques have been developed to increase the temperature in the breathing gas conduit by adding a heating device to the conduit to mitigate the condensation. Some techniques are provided with the comdenstion water collecting container in breathing gas pipeline, can collect the comdenstion water in the container, and the untimely clearance pour the comdenstion water can, however, because the comdenstion water collecting container is bulky, the comdenstion water collecting container is set up on the breathing machine or set up the intermediate position in breathing gas pipeline usually and reduces the stumbling to respirator. If the setting is in respirator position department, then it is great to catch on respirator, in addition, in the use or topple over the comdenstion water after using, the operation is comparatively loaded down with trivial details.

Disclosure of Invention

The invention aims to provide a ventilating and volatilizing device which can allow gas such as gas with humidity to pass through and can adsorb and volatilize liquid possibly carried by the gas to the external environment, so that condensed water possibly carried by the gas in a breathing tube can be collected and adsorbed and volatilized to the outside when the ventilating and volatilizing device is used for delivering breathing gas, and the problem of discomfort caused by the condensed water being blown to the face, the mouth and the nose due to accumulation is solved.

The invention provides a ventilation and volatilization device, which comprises a ventilation pipe, a liquid-proof and breathable film and a gas-liquid one-way valve, wherein an internal channel of the ventilation pipe is formed into a gas flow channel, the liquid-proof and breathable film and the gas-liquid one-way valve are arranged on the gas flow channel at intervals along the axial direction of the gas flow channel, the gas flow channel comprises a flow channel section positioned between the liquid-proof and breathable film and the gas-liquid one-way valve, and at least one part of the flow channel section is a liquid absorption and volatilization part.

In this technical scheme, because prevent that liquid ventilated membrane and gas-liquid check valve set up on gas flow channel along gas flow channel's axial direction interval, and at least some of the runner section that is located between liquid ventilated membrane and the gas-liquid check valve of gas flow channel is imbibition volatilization part, like this, gas can be discharged from gas flow channel through preventing liquid ventilated membrane after entering into the runner section through the gas-liquid check valve, and the liquid that gas probably carried passes through gas-liquid check valve and gets into the runner section in back, prevent that liquid ventilated membrane stops the liquid discharge in the runner section, like this, imbibition volatilization part can adsorb the liquid in the runner section and volatilize the outside, need not to pour out the water of collecting in the comdenstion water collection container manually with prior art. Therefore, when the ventilation and liquid volatilization device is used for delivering the breathing gas, the possibly carried condensed water in the breathing tube can be collected and adsorbed to volatilize to the outside, so that the problem of uncomfortable feeling caused by the condensed water gathering and blowing to the face, the mouth and the nose is solved.

Further, the wicking volatile portion includes at least one of graphene, porous ceramic, or activated carbon.

Further, the inner surface of the gas flow passage is a smooth inner surface.

Further, an volatilization fin is formed on the outer surface of the liquid absorption volatilization part.

Further, the flow passage section is integrally formed as a liquid suction volatilization section.

Further, the vent tube is integrally formed as a wick volatilization tube.

Further, the liquid-proof and breathable film is arranged on the end face of one end of the breather pipe, and the gas-liquid one-way valve is arranged at the other end of the breather pipe.

Further, the gas-liquid one-way valve comprises a valve plate capable of being opened and closed, and the valve plate can be opened under the action of gas flow flowing into the vent pipe and can be closed after the gas flow disappears.

Further, the thickness of the valve plate is 0.1-05mm, preferably 0.2-0.4mm, preferably 0.3 mm.

In addition, the gas-liquid check valve comprises a valve barrel, wherein the valve plate is formed at the second end of the first end of the valve barrel, the valve barrel is located in the other end of the vent pipe, and the first end of the valve barrel faces outwards.

Further, the valve cylinder is a conical cylinder, and the second end of the conical cylinder is formed into a flat end, so that two cylinder wall parts of the flat end are respectively used as the valve plates.

Further, the gas-liquid check valve includes a connection flange formed on an outer peripheral surface of the first end of the valve cylinder, the connection flange being provided on an end surface of the other end of the breather pipe and the valve cylinder being located inside the other end of the breather pipe.

Further, the ventilating and volatilizing device also comprises a heating unit for increasing the temperature of the liquid absorbing and volatilizing part.

In addition, the ventilation and volatilization device also comprises a containing cylinder and a cylinder cover, wherein the ventilation pipe is arranged in the containing cylinder and is kept to be positioned by the cylinder cover; a gas through hole communicated with one end of the gas flow channel is formed in the accommodating cylinder, and a gas through hole communicated with the other end of the gas flow channel is formed in the cylinder cover; an volatilization opening corresponding to the liquid suction volatilization part is formed on the wall of the containing cylinder so that the liquid suction volatilization part is exposed outside.

Further, the containing barrel comprises a heating insertion end, and a heating coil connected with the heating insertion end is arranged on the opening edge of the volatilization opening.

Still further, the containing barrel comprises a plurality of the volatilization openings which are arranged at intervals in the circumferential direction, and the parts of the containing barrel, which are positioned between the adjacent volatilization openings, are formed into supporting strips, and each supporting strip is embedded with the heating coil.

Further, the accommodation cylinder and the cylinder cover respectively include a cylinder joint pipe and a cover joint pipe provided at the respective gas passage ports.

Further, the cover includes sealed holding tank of filling up and centers on the sealed annular joint shirt rim that the holding tank of filling up was arranged, hold the section of thick bamboo and connect the turn-ups including the annular, be provided with sealed the pad in the sealed holding tank of filling up, annular joint shirt rim with the cooperation of turn-ups joint is connected in order to support the pressure to sealed the pad, sealed pad will prevent that the edge of liquid ventilated membrane supports the pressure on the terminal surface of breather pipe one end.

In addition, the invention provides a breathing mask, which comprises a mask body and the ventilation and liquid volatilization device, wherein the ventilation pipe is connected to the mask body and is used for connecting a ventilation pipe, and the gas-liquid one-way valve is arranged far away from the mask body.

Therefore, as mentioned above, the ventilation and volatilization device can collect and adsorb the condensed water possibly carried by the gas in the breathing tube connected with the breathing mask to volatilize to the outside, thereby solving the problem that the condensed water is gathered and blown to the face, the mouth and the nose to cause uncomfortable feeling. Simultaneously, because this breathe and volatilize liquid device volume is less and light and handy, consequently can connect on breathing mask and can not be to influencing breathing mask's normal use, promoted this breathing mask's whole quality.

In addition, the present invention provides a breathing tube to which any of the above-described ventilation and volatilization devices is connected. Thus, as mentioned above, the ventilation and liquid volatilization device can collect and adsorb the condensed water possibly carried by the gas in the breathing tube to volatilize to the outside, thereby solving the problem that the condensed water is gathered and blown to the face, the mouth and the nose to cause uncomfortable feeling.

Further, the ventilation and volatilization device can be arranged on at least one of the air inlet end of the breathing tube, the middle of the breathing tube and the air outlet end of the breathing tube.

Finally, the invention provides a respiratory support apparatus comprising a respiratory mask and a respirator connected by the respiratory tube, wherein the liquid-proof and gas-permeable membrane is arranged towards the respiratory mask, and the gas-liquid one-way valve is arranged towards the respirator.

Drawings

FIG. 1 is an exploded view of a ventilating and volatilizing device according to an embodiment of the invention;

FIG. 2 is an assembly view of FIG. 1;

FIG. 3 is a schematic view of the vent pipe of FIG. 1;

FIG. 4 is a schematic view of the construction of the cartridge cover of FIG. 1;

FIG. 5 is a cross-sectional view of the cartridge cover of FIG. 4;

fig. 6 is a perspective view of the gas-liquid check valve in fig. 1;

FIG. 7 is a cross-sectional view of the gas and liquid check valve of FIG. 6;

FIG. 8 is a schematic view of a heating coil used in the containment drum of FIG. 1;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 10 is a schematic view showing a state of use of the ventilating and volatilizing device shown in FIG. 1;

FIG. 11 is a schematic diagram of a configuration of a one-way valve for venting a volatile liquid in accordance with an embodiment of the present invention;

fig. 12 is another schematic structural diagram of a liquid check valve in a ventilating and volatilizing device according to the embodiment of the invention.

Description of the reference numerals

1-vent pipe, 2-liquid-proof and breathable film, 3-gas-liquid one-way valve, 4-valve plate, 5-valve cylinder, 6-flat end, 7-connecting flange disc, 8-containing cylinder, 9-cylinder cover, 10-volatilization opening, 11-heating plug end, 12-heating coil, 13-supporting strip, 14-cylinder connector pipe, 15-cover connector pipe, 16-sealing gasket containing groove, 17-arc clamping skirt edge, 18-annular connecting flange edge, 19-sealing gasket, 20-breathing pipe, 21-breathing mask, 22-respirator, 23-volatilization fin, 24-spring and 25-valve ball.

Detailed Description

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, 2 and 3, the ventilation and volatilization device provided by the invention comprises a ventilation pipe 1, a liquid-proof and breathable film 2 and a gas-liquid one-way valve 3, wherein an internal channel of the ventilation pipe 1 is formed into a gas flow channel, and the liquid-proof and breathable film 2 and the gas-liquid one-way valve 3 are arranged on the gas flow channel at intervals along the axial direction of the gas flow channel, wherein the gas flow channel comprises a flow channel section positioned between the liquid-proof and breathable film 2 and the gas-liquid one-way valve 3, and at least one part of the flow channel section is a liquid-absorbing and volatilization part.

In this ventilate and volatilize liquid device, because prevent that liquid ventilated membrane 2 and liquid check valve 3 set up on gas flow channel along gas flow channel's axial direction interval, and gas flow channel's the at least part that is located the runner section between liquid ventilated membrane 2 and the liquid check valve 3 is imbibition volatile portion, like this, gas can be discharged from gas flow channel through preventing liquid ventilated membrane 2 after entering into the runner section through liquid check valve 3, and the liquid that gas probably carried passes through liquid check valve 3 and gets into behind the runner section, prevent that liquid ventilated membrane 2 blocks the liquid in the runner section and discharges, like this, imbibition volatile portion can adsorb the liquid in the runner section and volatilize to the outside, need not to pour out the water of collecting in the comdenstion water collecting vessel with the prior art is the manual. Therefore, when the ventilation and liquid volatilization device is used for delivering the breathing gas, the possibly carried condensed water in the breathing tube can be collected and adsorbed to volatilize to the outside, so that the problem of uncomfortable feeling caused by the condensed water gathering and blowing to the face, the mouth and the nose is solved.

The liquid-proof and gas-permeable membrane 2 may be a membrane material that is permeable to water or air, or the liquid-proof and gas-permeable membrane 2 may be a membrane material that is permeable to water and vapor, so that the liquid-proof and gas-permeable membrane 2 can isolate the condensed water in the gas flow direction in the flow passage section of the vent pipe 1. In addition, the liquid-absorbing volatile part can be a liquid-absorbing volatile material which can rapidly absorb, diffuse and volatilize water and has small air permeability, and can be a lighter material such as graphene, porous ceramic or activated carbon.

In addition, in one embodiment, the inner surface of the gas channel is a smooth inner surface, so that the smooth inner surface is easier for gas to flow on the inner surface, and the blocking of gas flow is reduced, so that the noise generated when the gas passes through the gas channel can be effectively reduced, the mute effect is achieved, and the comfort of a patient is improved. Of course, in other embodiments, the inner surface of the gas flow passages may be a non-smooth inner surface.

In addition, as shown in fig. 3, the volatilization fin 23 is formed on the outer surface of the liquid-absorbing volatilization part, so that the volatilization fin 23 can increase the contact area of the liquid-absorbing volatilization part with the external environment, thereby making it easier for the liquid, such as water, adsorbed by the liquid-absorbing volatilization part to volatilize to the outside. Of course, the volatilization fin 23 may have various shapes, for example, in fig. 3, when the vent tube 1 is integrally formed as a liquid-suction volatilization tube, the volatilization fin 23 may be a straight piece extending radially outward extending in the axial direction of the vent tube 3, and the straight piece may extend from one end face to the other end face of the vent tube 3. Alternatively, the volatilization fins 23 can be circumferentially extending annular fins or spiral fins.

In addition, one or more openings can be formed on the pipe wall of the flow channel section, the openings can be axially extending openings or circumferentially extending openings, the openings can be axially arranged at intervals or circumferentially arranged at intervals, and the openings can also be arranged at intervals according to other certain distribution rules, for example, the openings are spirally arranged at intervals, liquid absorbing volatile materials are arranged in the openings to form liquid absorbing volatile parts, for example, graphene blocks, porous ceramic blocks or activated carbon blocks can be filled in the openings to serve as the liquid absorbing volatile parts, and thus, liquid entering the flow channel section through the gas-liquid check valve, such as condensed water, can be absorbed and volatilized by the liquid absorbing volatile parts. Or, alternatively, the flow path section is integrally formed as a liquid-absorbing volatilization section, that is, the flow path section of the vent pipe 1 is integrally made of a liquid-absorbing volatilization material, so that the adsorption volatilization of liquid such as water entering the flow path section along with the gas can be further accelerated due to the increased adsorption area.

Further, as shown in fig. 3, the vent tube 1 is integrally formed as a liquid-absorbing volatile tube, that is, the vent tube 1 is integrally made of a liquid-absorbing volatile material. In this way, the ease of manufacture of the vent tube 1 can be improved, i.e. the vent tube 1 can be made directly from the liquid-absorbent volatile material.

Of course, the liquid-proof and gas-permeable membrane 2 and the gas-liquid one-way valve 3 may be disposed inside the vent pipe 1, or disposed at the end of the vent pipe 1, for example, in one embodiment, the liquid-proof and gas-permeable membrane 2 is disposed on the end face of one end of the vent pipe 1, and the gas-liquid one-way valve 3 is disposed at the other end of the vent pipe 1, so that the connection between the liquid-proof and gas-liquid one-way valve 3 and the gas-liquid one-way membrane 2 can be facilitated. For example, when the vent pipe 1 is integrally formed as a liquid-absorbing volatilization tube, the liquid-proof and gas-permeable membrane 2 can be welded or bonded or connected to the end face of one end of the vent pipe 1 through a connector such as a screw, and the gas-liquid check valve 3 can also be welded or bonded or connected to the other end of the vent pipe 1 through a connector such as a screw, so that the liquid-absorbing volatilization area can be further increased, and the absorption volatilization efficiency of the liquid entering the vent pipe 1 along with the gas can be improved.

In addition, in this ventilation and volatilization device, the gas-liquid check valve 3 may have various structures, and it should be understood that, whichever structure is adopted, it is sufficient to allow the gas to enter the flow passage section through the gas-liquid check valve 3 and to close the gas after the gas stops entering. For example, in one structure, as shown in fig. 11, the gas-liquid check valve 3 includes a valve port and a valve ball 25 connected with a spring 24, under the action of gas flow (as shown by an arrow), the valve ball 25 overcomes the spring 24 to open the valve port, and after the gas flow stops passing through, the valve ball 25 covers the valve port again under the action of the spring 24 to close the valve port. Alternatively, in another structure, referring to the structures shown in fig. 1, 6 and 7, the gas-liquid check valve 3 includes a plurality of, for example, two, valve plates 4 that can be opened and closed, and the valve plates 4 can be arranged oppositely when the valve plates 4 are multiple, for example, two, and can be opened under the action of the gas flow flowing into the breather pipe 1 and closed after the gas flow disappears, so that under the action of the gas flow, the valve plates 4 will be opened, for example, the two oppositely arranged valve plates 4 are far away from each other and opened. In addition, the gas-liquid check valve 3 may include a pair of valve plates 4 (two valve plates 4 are arranged oppositely), or the gas-liquid check valve 3 may also include a plurality of pairs of valve plates 4. The valve plate 4 may be a metal sheet or a rubber sheet.

In addition, the valve plate 4 may have a suitable thickness (i.e., a thickness in the left-right direction in fig. 7), for example, the thickness of the valve plate 4 is 0.1-05mm, so that the valve plate 4 is easily opened by the air flow and is easily closed after the air flow passes through, preferably 0.2-0.4mm, and preferably 0.3 mm. Of course, the valve plate 4 may have other thicknesses, for example, the thickness of the valve plate 4 may be more than 0.06mm, as long as the valve plate can be opened under the action of the airflow and closed after the airflow passes through the valve plate.

In addition, as shown in fig. 6 and 7, the gas-liquid check valve 3 includes a valve cylinder 5, a first end of the valve cylinder 5 is open, and a second end of the valve cylinder 5 is formed with a valve sheet 4, so that the valve cylinder 5 can be inserted into the other end of the vent pipe 1, so that the valve cylinder 5 is located in the other end of the vent pipe 1 and the first end of the valve cylinder 5 faces outward, so that the gas flow can enter from the open first end of the valve cylinder 5, and then the valve sheet 4 is driven to open to enter the flow passage section.

In addition, the second end of the valve cylinder 5 can form the valve plate 4 through various structural forms, for example, in one structural form, as shown in fig. 12, the second end of the valve cylinder 5 is formed with an end wall, a strip-shaped opening is formed on the end wall, the valve plate 4 is respectively connected to two sides of the outer side of the strip-shaped opening, and the two valve plates 4 are obliquely arranged towards each other, so that the air flow (shown by an arrow in the figure) in the valve cylinder 5 drives the two valve plates 4 to be separated to allow the air flow to pass through, and after the air flow passes through, the two obliquely arranged valve plates 4 are attached again to be closed. Alternatively, in another structure, as shown in fig. 6 and 7, the valve cylinder 5 is a conical cylinder, and the second end of the conical cylinder is formed into a flat end 6, so that two cylinder wall parts of the flat end 6 are respectively used as the valve plates 4, and thus, the air flow in the valve cylinder 5 is easier to accelerate under the guiding action of the conical cavity to drive the two cylinder wall parts of the flat end 6 to separate for passing.

In addition, as shown in fig. 6 and 7, the gas-liquid check valve 3 includes a connection flange 7, the connection flange 7 is formed on the outer peripheral surface of the first end of the valve cylinder 5, the connection flange 7 is provided on the end surface of the second end of the breather pipe 1 and the valve cylinder 5 is located inside the other end of the breather pipe 1. Thus, the connection flange 7 may be welded, bonded, or connected to the end surface of the other end of the breather pipe 1 by a connector such as a screw, so that the valve cylinder 5 is located entirely inside the other end of the breather pipe 1.

In one embodiment, the connecting flange 7 and the valve cartridge 5 are formed integrally, for example as a silicone cone, the other end of which is a flat end 6.

In addition, in this ventilate and volatilize liquid device, ventilate and volatilize liquid device still including the heating unit that is used for improving the temperature of imbibition volatilization part, like this, through the temperature that heating unit improved imbibition volatilization part, can promote imbibition volatilization efficiency of imbibition volatilization part for liquid such as the comdenstion water that enters into in the runner section can be adsorbed more fast and volatilize. Of course, the type and arrangement position of the heating unit may have various ways. For example, the heating unit may be a heating strip disposed on the outer circumferential surface of the vent tube 1 around the liquid suction volatilization section.

In addition, as shown in fig. 1 and fig. 2, the ventilation and volatilization device further comprises a containing cylinder 8 and a cylinder cover 9, wherein the ventilation pipe 1 is arranged in the containing cylinder 8 and is kept in position by the cylinder cover 9; a gas through hole communicated with one end of the gas flow channel is formed in the accommodating cylinder 8, a gas through hole communicated with the other end of the gas flow channel is formed in the cylinder cover 9, so that gas flow enters from the gas through hole in the accommodating cylinder 8, enters the flow channel section after passing through the gas-liquid one-way valve 3, then passes through the liquid-proof and gas-permeable membrane 2 and is discharged from the gas through hole in the cylinder cover 9, and the gas through holes in the accommodating cylinder 8 and the cylinder cover 9 are conveniently connected with an external pipeline; the wall of the containing cylinder 8 is formed with volatilization openings 10 corresponding to the liquid-suction volatilization sections so that the liquid-suction volatilization sections are exposed to the outside. As shown in fig. 1 and 2, the wall of the containing cylinder 8 is formed with a plurality of circumferentially spaced volatilization openings 10, each volatilization opening 10 extending axially. Of course, the shape of the volatilization opening 10 is not limited to the shape shown in fig. 2, and the volatilization opening 10 can also have other shapes.

In addition, as shown in fig. 2, the accommodating cylinder 8 includes a heating plug 11, and a heating coil 12 connected to the heating plug 11 is disposed at the edge of the volatilization opening 10, so that the heating plug 11 can be connected to the respiration support device through a connecting wire or can be connected to an external power line to perform a heating function of the heating coil 12.

In addition, as shown in fig. 2, the containing cylinder 8 comprises a plurality of circumferentially spaced volatilization openings 10, and the parts of the containing cylinder 8 between adjacent volatilization openings 10 are formed into supporting strips 13, and each supporting strip 13 is embedded with a heating coil 12, as shown in fig. 8 and 9. Like this, heating coil 12 circular telegram back, a plurality of support strips 13 will be heated to heating the periphery of breather pipe 1, the breather pipe 1 that the temperature promoted then can improve the imbibition efficiency of volatilizing, makes the liquid that enters into in breather pipe 1 for example the comdenstion water can be adsorbed more fast and volatilize.

In addition, in order to facilitate the connection of the ventilating and volatilizing device with the external pipeline, as shown in fig. 1 and 2, the containing cylinder 8 and the cylinder cover 9 respectively comprise a cylinder joint pipe 14 and a cover joint pipe 15 which are arranged at the respective gas passing ports, so that the ventilating and volatilizing device can be connected in the pipeline by the connection of the cylinder joint pipe 14 and the cover joint pipe 15 with the respective corresponding pipelines with reference to the embodiment shown in fig. 10.

In addition, the connection mode of the accommodating cylinder 8 and the cylinder cover 9 can be various, for example, the accommodating cylinder 8 and the cylinder cover 9 can be connected in a threaded manner or clamped, or as shown in fig. 1, 4 and 5, the cylinder cover 9 comprises a sealing gasket accommodating groove 16 and an annular clamping skirt 17 arranged around the sealing gasket accommodating groove 16, the accommodating cylinder 8 comprises an annular connecting flange 18, a sealing gasket 19 is arranged in the sealing gasket accommodating groove 16, the annular clamping skirt 17 and the annular connecting flange 18 are in clamping fit to press the sealing gasket 19, the sealing gasket 19 presses the edge of the liquid-proof and breathable film 2 against the end face of one end of the vent pipe 1, and thus, the connection between the accommodating cylinder 8 and the cylinder cover 9 can press the sealing gasket 19 and the liquid-proof and breathable film 2 against the end face of one end of the vent pipe 1. The gasket 19 can make the cylinder cover 9 form a sealing communication with the liquid-proof and gas-permeable membrane 2 and the breather pipe 1.

In addition, the invention provides a breathing mask, which comprises a mask body and the ventilation and volatilization device, wherein the ventilation pipe 1 is connected to the mask body and is used for connecting a breathing pipe, for example, a cover joint pipe 15 can be connected to the mask body, and the gas-liquid one-way valve 3 is arranged far away from the mask body. Therefore, as mentioned above, the ventilation and volatilization device can collect and adsorb the condensed water possibly carried by the gas in the breathing tube connected with the breathing mask to volatilize to the outside, thereby solving the problem that the condensed water is gathered and blown to the face, the mouth and the nose to cause uncomfortable feeling. Simultaneously, because this breathe and volatilize liquid device volume is less and light and handy, consequently can connect on breathing mask and can not be to influencing breathing mask's normal use, promoted this breathing mask's whole quality.

The present invention also provides a breathing tube to which any of the above-described ventilation and volatilization devices is connected. Thus, as mentioned above, the ventilation and liquid volatilization device can collect and adsorb the condensed water possibly carried by the gas in the breathing tube to volatilize to the outside, thereby solving the problem that the condensed water is gathered and blown to the face, the mouth and the nose to cause uncomfortable feeling.

Of course, the devolatilizer may be disposed at any location of the breathing tube, for example, the devolatilizer can be disposed at least one of the air inlet end of the breathing tube, the middle of the breathing tube, and the air outlet end of the breathing tube. Referring to fig. 10, for example, the devolatilizer may be disposed at an end C of the snorkel tube for connection to the ventilator 22, or the devolatilizer may be disposed at any intermediate location of the snorkel tube, such as location E, for example, the snorkel tube may comprise two tube segments that are connected at respective ends of the snorkel 1, such as at the barrel adapter tube 14 and the cap adapter tube 15. Or, the ventilation and volatilization device is connected to one end position, such as end D, of the breathing tube for connecting the breathing mask, so that the breathing tube only needs to be connected with the breathing mask by the breathing tube 1 in actual use, for example, the joint pipe 15 is connected with the breathing mask, and thus, even if condensed water possibly existing in the breathing tube enters the breathing tube 1, the liquid absorption volatilization part can adsorb and volatilize the condensed water.

Finally, the present invention provides a respiratory support apparatus comprising a respiratory mask 21 and a respirator 22 connected by a respiratory tube 20 as described in any of the above, wherein the liquid-proof and breathable membrane 2 is disposed toward the respiratory mask 21 and the gas-liquid one-way valve 3 is disposed toward the respirator 22. Thus, as described above, the quality of the respiratory support apparatus is effectively improved by the ventilation and volatilization device.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. The ventilation and volatilization device is characterized by comprising a ventilation pipe (1), a liquid-proof and breathable film (2) and a gas-liquid one-way valve (3), wherein an internal channel of the ventilation pipe (1) is formed into a gas flow channel, the liquid-proof and breathable film (2) and the gas-liquid one-way valve (3) are arranged on the gas flow channel at intervals along the axial direction of the gas flow channel, the gas flow channel comprises a flow channel section positioned between the liquid-proof and breathable film (2) and the gas-liquid one-way valve (3), and at least one part of the flow channel section is a liquid absorption and volatilization part.

2. The vented devolatilizer device of claim 1 wherein the imbibing and volatilizing portion comprises at least one of graphene, porous ceramic, or activated carbon.

3. The air-breathing and liquid-volatilizing device as claimed in claim 1, wherein a volatilizing fin (23) is formed on the outer surface of the liquid-absorbing volatilizing part.

4. The air and liquid volatilizing device as claimed in claim 1, wherein the air and liquid proof and permeable membrane (2) is arranged on the end face of one end of the vent pipe (1), and the air and liquid one-way valve (3) is arranged on the other end of the vent pipe (1).

5. The aeration and volatilization device according to claim 1, wherein the gas-liquid one-way valve (3) comprises a valve plate (4) capable of opening and closing, and the valve plate (4) can be opened under the action of the gas flow flowing into the aeration pipe (1) and can be closed after the gas flow disappears.

6. A device for ventilating and volatilizing liquid according to claim 5, wherein the thickness of the valve plate (4) is 0.1-05mm, preferably 0.2-0.4mm, preferably 0.3 mm.

7. The ventilation volatile liquid device according to claim 5, characterized in that the gas-liquid one-way valve (3) comprises a valve cylinder (5), the valve cylinder (5) is provided with a valve sheet (4) at a first end and a second end, the valve cylinder (5) is positioned in the other end of the ventilation pipe (1), and the first end of the valve cylinder (5) faces outwards.

8. The air-breathing liquid-volatilizing device of claim 7, wherein the valve cylinder (5) is a conical cylinder, and the second end of the conical cylinder is formed into a flat end (6) so that two cylinder wall parts of the flat end (6) respectively serve as the valve plates (4).

9. The vent volatile liquid device according to claim 7, wherein the gas-liquid check valve (3) comprises a connection flange plate (7), the connection flange plate (7) is formed on an outer peripheral surface of the first end of the valve cylinder (5), the connection flange plate (7) is provided on an end surface of the other end of the vent pipe (1) and the valve cylinder (5) is located inside the other end of the vent pipe (1).

10. The air vent volatilization device of claim 1, wherein the air vent volatilization device comprises a heating unit for increasing the temperature of the imbibed volatile fraction.

11. A vented volatile liquid device according to any one of claims 1-10, characterized in that it further comprises a containing canister (8) and a canister cover (9), the vent tube (1) being arranged inside the containing canister (8) and held in place by the canister cover (9);

a gas passing port communicated with one end of the gas flow channel is formed in the accommodating cylinder (8), and a gas passing port communicated with the other end of the gas flow channel is formed in the cylinder cover (9);

an volatilization opening (10) corresponding to the liquid suction volatilization part is formed on the wall of the containing cylinder (8) so that the liquid suction volatilization part is exposed to the outside.

12. The aeration and volatilization device of claim 11, wherein the containing barrel (8) comprises a heating plug end (11), and the edge of the volatilization opening (10) is provided with a heating coil (12) connected with the heating plug end (11).

13. The ventilating and volatilizing device of claim 12 wherein said containing cylinder (8) comprises a plurality of said volatilizing openings (10) arranged at intervals circumferentially, and the parts of said containing cylinder (8) between adjacent volatilizing openings (10) are formed into supporting strips (13), and each supporting strip (13) is embedded with said heating coil (12).

14. The ventilation and liquid volatilization device of claim 11, wherein the cartridge cover (9) comprises a sealing gasket accommodating groove (16) and an annular clamping skirt (17) arranged around the sealing gasket accommodating groove (16), the accommodating cartridge (8) comprises an annular connecting flange (18), a sealing gasket (19) is arranged in the sealing gasket accommodating groove (16), the annular clamping skirt (17) and the annular connecting flange (18) are in clamping fit to abut against the sealing gasket (19), and the sealing gasket (19) abuts against the edge of the liquid and gas permeable membrane (2) on the end face of one end of the vent pipe (1).

15. A breathing mask, comprising a mask body and a ventilation and liquid-volatilization device as claimed in any one of claims 1 to 14, wherein the ventilation tube (1) is connected to the mask body for connecting a breathing tube, and the gas-liquid one-way valve (3) is arranged away from the mask body.

16. A breathing tube, wherein the breath volatilizing device as claimed in any one of claims 1 to 14 is connected to the breathing tube, and the breath volatilizing device can be arranged at least one of an air inlet end of the breathing tube, the middle of the breathing tube and an air outlet end of the breathing tube.

17. Breathing support device, comprising a breathing mask (21) and a ventilator (22) connected by a breathing tube (20) according to claim 16, wherein the liquid-proof and gas-permeable membrane (2) is arranged towards the breathing mask (21) and the gas-liquid one-way valve (3) is arranged towards the ventilator (22).