CN108939247B - Safe oxygen humidifying device - Google Patents
Safe oxygen humidifying device Download PDFInfo
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- CN108939247B CN108939247B CN201810949850.4A CN201810949850A CN108939247B CN 108939247 B CN108939247 B CN 108939247B CN 201810949850 A CN201810949850 A CN 201810949850A CN 108939247 B CN108939247 B CN 108939247B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
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Abstract
A safe oxygen humidification device comprising: a container which is connected with an oxygen inlet structure and an oxygen outlet structure and can store humidifying liquid in the inner cavity of the container, wherein an oxygen inlet in the oxygen inlet structure is provided with a first inlet for oxygen access and a second inlet positioned in the inner cavity of the container; the oxygen passage of the oxygen outlet structure is communicated with the inner cavity of the container and is provided with an oxygen outlet; the liquid injection structure with the liquid injection passage connected with the container is characterized in that the container at least comprises a shell 1a, a shell 1b and a shell 1c, at least part of the inner space of the shell 1b receives humidifying liquid conveyed by the liquid injection passage as a liquid accommodating space, the space without humidifying liquid between the shell 1a and the shell 1b is an oxygen humidifying space mixed by dry oxygen and water vapor, the space without humidifying liquid between the shell 1c and the shell 1b is an overflow accommodating space, and the overflow accommodating space is in fluid communication with the oxygen humidifying space.
Description
Technical Field
The invention relates to a safe oxygen humidifying device, belonging to the technical field of medical appliances.
Background
Oxygen inhalation is the most common clinical treatment means, when dry medical oxygen is used, effective humidification is needed, the traditional water-entering humidification mode, namely the bubble humidification mode, is obvious in noise in the humidification process, microorganisms or tiny foreign matters in humidification liquid can be brought into oxygen flow to enter respiratory tract when a liquid film of bubbles breaks at a gas-liquid interface, patent CN101966363B discloses an oxygen surface humidification device, humidification liquid is led into a surface humidification unit through a humidification liquid conveying part made of water-absorbing materials, water vapor on the surface of a water-absorbable body in the surface humidification unit is mixed into oxygen flow, and the whole process oxygen does not enter liquid water to realize noiseless surface humidification; but the quantity of water vapor on the surface of the water-absorbable body is smaller than that of the liquid water, the conveying capacity of the humidifying liquid conveying part for the liquid water is positively related to the liquid pressure, and when the liquid level is lowered, the conveying capacity is synchronously lowered to finally influence the humidifying effect; the water supply capacity can be seriously affected by too loose or too tight connection between a delivery part for delivering liquid water by utilizing the capillary principle and a water absorption body of the humidifying unit, and the water supply capacity is greatly affected by a plurality of accessories and high process requirements; patent CN203342160.U and CN107648714.A disclose a kind of liquid adding humidifying device for a respirator which can make the liquid level constant, but the liquid injection port and the gas delivery port are respectively and independently arranged, so that the clinical operation is relatively complicated.
The invention provides a safe oxygen humidifying device which has smooth air flow, performs humidification by directly utilizing sufficient water vapor on a liquid water surface, has constant oxygen humidifying space and a liquid anti-overflow function, and an oxygen conveying pipeline which is matched with the safe oxygen humidifying device and is convenient to operate and connected with gas-liquid in a synchronous way.
Disclosure of Invention
The purpose of the invention is realized in the following way:
a safe oxygen humidification device comprising: a container which is connected with an oxygen inlet structure and an oxygen outlet structure and can store humidifying liquid in the inner cavity of the container, wherein an oxygen inlet in the oxygen inlet structure is provided with a first inlet for oxygen access and a second inlet positioned in the inner cavity of the container; the oxygen passage of the oxygen outlet structure is communicated with the inner cavity of the container and is provided with a container air outlet; the liquid injection structure with the liquid injection passage connected with the container is characterized in that the container at least comprises a shell 1a, a shell 1b and a shell 1c, at least part of the inner space of the shell 1b receives humidifying liquid conveyed by the liquid injection passage as a liquid accommodating space, the space without humidifying liquid between the shell 1a and the shell 1b is an oxygen humidifying space mixed by dry oxygen and water vapor, the space without humidifying liquid between the shell 1c and the shell 1b is an overflow accommodating space, and the overflow accommodating space is in fluid communication with the oxygen humidifying space. For constant liquid level, the humidifying liquid enters the inner cavity of the container through the liquid inlet, the liquid injection passage in the liquid injection structure and the liquid outlet positioned in the inner cavity of the container, and the liquid outlet can be closed by the valve component driven by buoyancy; the second inlet of the oxygen inlet is located above the liquid surface.
The humidifying liquid enters the inner cavity of the container from the liquid outlet; the inner cavity of the container is divided into a liquid accommodating space and an oxygen humidifying space on the liquid accommodating space, wherein the oxygen humidifying space refers to a space in which dry oxygen and a liquid level saturated water vapor layer are mixed to finally humidify the oxygen.
When the liquid in the liquid containing space is too much in the inner cavity of the container due to the inclination of the container or the failure of the valve component and the like, and exceeds the volume of the liquid containing space, the liquid can flow into the liquid containing space through the liquid containing space communicating port, and the possible risk that the liquid enters the respiratory tract of a person is eliminated.
The second inlet of the oxygen inlet is an opening penetrating into the inner cavity of the container, and the first inlet is an initial opening for oxygen access; because the liquid outlet on the liquid injection structure can be closed by the buoyancy driven valve component, when the liquid level is at a certain height, the valve component is driven by buoyancy to upwards block the liquid outlet, so that the liquid level is constant, and the second inlet of the oxygen inlet structure is above the constant liquid level. The purpose is to ensure that the oxygen flow does not enter the surface humidifying mode of the humidifying liquid, which only takes away water vapor, and avoid the generation of liquid water aerosol.
The valve component capable of being driven by buoyancy means that the valve component can be connected with the buoyancy component, and the valve component is driven by being pulled by the buoyancy component when the buoyancy component moves along with the liquid level; or the valve member itself may be floatable and thus buoyancy driven.
One convenient design is that the liquid injection passage of the liquid injection structure is closely adjacent to the oxygen passage of the oxygen outlet structure.
Further, the liquid injection passage of the liquid injection structure is spatially coupled to the oxygen passage of the oxygen outlet structure.
The space coupling arrangement refers to the space coupling arrangement of the two parts including mutual interpenetration and nesting; the two are closely adjacent, namely, the liquid injection passage of the liquid injection structure and the oxygen passage of the oxygen outlet structure are not spatially coupled, but the relative adjacent distance that a single finger of an operator can touch simultaneously can also comprise the situation that the two are parallel. The special design can enable synchronous operation of oxygen transportation after humidification and continuous injection of humidification liquid to be possible, and clinical use is more convenient. Further, the oxygen passage of the oxygen outlet structure and the liquid injection passage in the liquid injection structure are arranged in a vertically-inserted and mutually-inserted non-blocking space coupling way.
Alternatively, the oxygen passage of the oxygen outlet structure and the liquid injection passage of the liquid injection structure are arranged in a mutually nested non-blocking spatial coupling manner.
The term "vertically inserted" means that, for example, part or all of the liquid passage is inserted and passed through the oxygen passage at a vertical angle, but may be at a non-vertical angle; by "non-occluded" is meant that the interpenetration area is left with a gap without occluding the oxygen passage, i.e. the outer diameter of the interpenetration portion of the liquid passage is smaller than the inner diameter of the oxygen passage at that point.
By "nested" is meant, for example, that the liquid pathway is partially or fully located within the oxygen pathway or that the oxygen pathway is partially or fully located within the liquid pathway.
Further, the oxygen passage of the oxygen outlet structure and the liquid injection passage in the liquid injection structure are arranged in a non-blocking penetration way including a vertical penetration way, and a hollow sharp part with a liquid inlet is arranged in the liquid injection passage.
The liquid injecting mode is that the liquid outlet of the liquid injecting structure is opened inside the container.
The 'opening of the liquid outlet without the wall attachment' refers to that the liquid injection structure body extends to the inner cavity of the container so that the liquid outlet is suspended and is positioned in the inner cavity of the container instead of the container wall; of course, it is also possible that a separate part of the liquid injection structure extends into the cavity of the container, preferably in a vertical position, to facilitate the closing of the liquid outlet by the buoyancy driven valve member.
Alternatively, the liquid outlet of the liquid injection structure is formed in the bottom of the container, the valve member is movably disposed in the valve member receiving chamber of the liquid injection structure, and the valve member is connected to a buoyancy member.
When the liquid entering the inner cavity of the container reaches a certain volume, the buoyancy component floats upwards to pull the valve component to move upwards, so that the liquid outlet below the liquid level is closed, and of course, the hydrostatic pressure generated by the liquid in the humidifying liquid container also promotes the closing of the valve component to the liquid outlet; at this time, the inner cavity of the container of the humidifying device is divided into a liquid accommodating space and an oxygen humidifying space on the liquid surface, oxygen or other gases to be humidified enter the oxygen humidifying space through the air inlet and directly contact with the liquid surface so as to bring moisture into the air flow, and the moisture flows out from the air outlet or flows into the oxygen conveying pipeline from the air outlet.
The valve component accommodating cavity of the liquid injection structure refers to a structure which accommodates a valve component and can be in butt joint with an external liquid conveying pipeline, and the valve component accommodating cavity can be formed by enclosing two components.
Liquid enters the valve component accommodating cavity through the liquid inlet, and enters the inner cavity of the container from the liquid outlet; the inner cavity of the container is divided into a liquid accommodating space and an oxygen humidifying space thereon.
The term "the valve member is movably disposed in the valve member accommodating chamber of the liquid injection structure" means that the space of the valve member accommodating chamber is designed such that the valve member can move at least up and down, and a gap is left between the valve member and at least one side of the inner wall of the valve member accommodating chamber, and the liquid can flow in the gap.
In order to facilitate the observation of the communication of oxygen, a flow indicating member moving with the flow of gas is provided in the oxygen inlet or at the second inlet of the humidification device container.
The term "move with the gas flow" means that the component can rotate, shake up and down or left and right, and the like, which is easy to observe visually, so as to indicate the gas flow; further such rotation or shaking may cause the liquid surface to fluctuate and thereby promote gas humidification, because the fluctuating liquid surface has a larger surface area per unit time in contact with the drying gas and hydrogen bonds between the fluctuating liquid surface water molecules are more likely to break.
Further, a liquid level disturbance member moving along with the flow of the gas and being adjacent to or penetrating into the liquid level may be connected to the oxygen inlet or the second inlet of the humidifying device container, and the liquid level disturbance member may be a flexible strip (not shown).
The liquid level disturbance is continuous fluctuation of the liquid level as irregular as possible under the direct action of a gas turbulence or liquid level disturbance component, so that evaporation of liquid water is promoted, and the humidifying effect is improved.
The oxygen inlet path can be formed by a flexible thin-wall pipeline with at least partial locking of the inner cavity, wherein the at least partial locking refers to partial or whole locking of the inner cavity of the pipeline when no pressure difference exists or the pressure difference is small, and the inner cavity can be impacted and expanded when the gas with pressure enters; the locking can be a complete locking or an incomplete locking; the air flow can lead the flexible thin wall to be unevenly expanded and the closing and the expansion to be alternately carried out at different positions, so that the position of the opening of the pipeline is continuously changed, and the generated air turbulence continuously irregularly disturbs the liquid level, thereby improving the humidifying effect.
A low cost and easy to assemble means is provided wherein a separate component is connected at one portion thereof to the oxygen inlet or outlet structure, at one portion thereof to a deflector portion comprising a disk-like or wheel-like shape, and at the other portion thereof to a liquid inlet on the container, a hollow liquid injection structure is formed in the shape of a column.
An oxygen delivery pipeline matched with the safe oxygen humidifying device is characterized in that the main body is a hollow flexible hose, the connecting part of the oxygen delivery pipeline and a container of the humidifying device is a gas-liquid synchronous connecting part for preventing misplug, and a gas communication port communicated with a gas outlet of the container and a liquid communication port simultaneously communicated with a liquid inlet are arranged; the liquid communication port is communicated with the external liquid inlet through a liquid passage, and the gas passage is communicated with the inner cavity of the conveying pipeline.
The gas-liquid synchronous connection part is used for simultaneously communicating the liquid channel and the gas channel by one-time insertion, so that the operation is greatly facilitated, and the error insertion prevention structure or fool-proof structure is used for preventing the error insertion of the gas communication port and the liquid communication port due to different sizes and/or shapes, so that the gas communication port and the liquid communication port cannot be inserted by error, and possible accidents are avoided.
Further, the liquid passage and the gas passage of the gas-liquid synchronous connection part of the oxygen transmission pipeline are arranged in a non-blocking space coupling way including vertical penetration and nesting.
The term "penetration" means that, for example, part or all of the liquid passage passes through the penetration including the vertical angle in the gas passage, and the penetration region is left with a gap without blocking the gas passage, that is, the outer diameter of the penetration portion of the liquid passage is smaller than the inner diameter of the gas passage at that point.
By "nested" is meant, for example, that the liquid passageway is partially or entirely within the gas passageway, or that the gas passageway is partially or entirely within the liquid passageway.
In order to facilitate the communication of an external humidification liquid container, a hollow sharp member with a communication port is arranged in the liquid passage of the gas-liquid synchronous connection part, and the tip of the sharp member faces to the external liquid inlet.
In order to avoid overflow of the humidifying liquid, a hollow sharp part with a communication port is arranged in the liquid passage of the gas-liquid synchronous connecting part, and the tip end of the sharp part faces to the external liquid inlet; the communication port is closed by an elastic member.
For further convenient operation, the gas-liquid synchronous connection part is connected with the humidifying liquid container into a whole.
For the convenience of suspension, the gas-liquid synchronous connection part is connected with the humidifying liquid container into a whole, and the humidifying liquid container is in a shape which comprises a central opening or a U shape and is easy to be attached on the flowmeter.
The beneficial effects of the invention are as follows:
1. the overflow receiving space communicated with the oxygen humidifying space thoroughly eliminates the risk of liquid entering the respiratory tract of a user caused by the inclination of the container or the fault of the buoyancy part and the valve part.
2. The oxygen transmission pipeline with the gas-liquid synchronous connection is more convenient to use.
Drawings
The drawings that do not limit the invention are as follows:
fig. 1: a schematic perspective sectional structure of embodiment 1 of the present invention;
fig. 2A: a schematic cross-sectional structure of embodiment 2 of the present invention;
fig. 2B: the gas-liquid synchronous connection part of the invention is a three-dimensional cross-sectional structure schematic diagram;
fig. 2C: the invention relates to a three-dimensional cross-section structure schematic diagram of a gas-liquid synchronous connecting part;
fig. 2D: the three-dimensional cross-section structure schematic diagram of another gas-liquid synchronous connecting part of the invention;
fig. 2E: the invention relates to a three-dimensional cross-section structure schematic diagram of a gas-liquid synchronous connection part connected with a humidifying liquid container;
fig. 2F: the invention relates to a schematic diagram of a gas-liquid synchronous connection part and a humidifying liquid container which are connected into a whole;
fig. 3: a schematic perspective sectional structure of embodiment 3 of the present invention;
fig. 4: a schematic cross-sectional structure of embodiment 4 of the present invention;
fig. 5A: a schematic cross-sectional structure of embodiment 5 of the present invention;
fig. 5B: the gas-liquid synchronous connecting part of embodiment 5 of the invention is partially enlarged in cross-sectional structure schematic;
fig. 6: a schematic perspective sectional structure of embodiment 6 of the present invention;
in the figure: 0. humidifying liquid; 00. a level of the wetting liquid; 1. an oxygen humidification device container; 1a, 1b, 1 c; 10. a container cavity; 100. a liquid overflow accommodating space communication port; 101. an oxygen humidifying space; 102. a liquid accommodating space; 103. an overflow accommodating space; 11. an oxygen inlet structure; 110. an oxygen inlet; 111. an oxygen first inlet; 112. an oxygen second inlet; 113. a hollow flow guiding member; 114. an air flow indicating member; 115. a liquid level disturbance part; 12. an oxygen outlet structure; 120. an oxygen passage; 121. an oxygen outlet; 3. a buoyancy member; 3a, an annular buoyancy member; 3b, a wheel-shaped buoyancy member; 4.a valve member; 40. a connecting member; 401. a connecting rod; 402. a connecting wire; 5. a stand-alone component; 51. a separate part 5, a part of which; 52. a disk-shaped flow guiding portion; 53. convex ribs; 530. a convex rib opening; 54. a liquid injection structure of the independent part 5; 6. a liquid injection structure; 60. a liquid injection passage; 600. a valve member accommodating chamber; 601. an accommodation chamber inlet; 61. a liquid outlet; 62. a liquid inlet of the liquid injection structure 6; 63. a sharp component of the liquid injection passageway 60; 64. a communication port of the sharp member 63; 65. a foreign liquid transfer line; 7. an oxygen flow meter; 8. a wetting fluid container; 81. a neck of a wetting fluid container; 82. a sealing member; 9. an oxygen delivery line; 90. an inner cavity of the conveying pipeline; 91. a gas-liquid synchronous connection portion; 911. a gas communication port; 9110. a gas passage; 912. a liquid communication port; 9120. a gas-liquid synchronous connection part liquid passage; 9121. an external liquid inlet; 9123. a communication port of the sharp member 9124; 9124. a sharp part of the gas-liquid synchronous connection part; 9125. an elastic member.
Detailed Description
The embodiments of the present invention are not limited as follows:
example 1:
as shown in fig. 1, a container 1 with an oxygen inlet structure 11 and an oxygen outlet structure 12, wherein a cavity 10 of the container can store humidifying liquid 0, and an oxygen inlet 110 in the oxygen inlet structure 11 is provided with a first inlet 111 for oxygen access and a second inlet 112 positioned in the cavity 10 of the container; the oxygen passage 120 of the oxygen outlet structure 12 communicates with the container inner cavity 10 and is provided with an oxygen outlet 121; the oxygen second inlet 112 extends into the container cavity 10 above the surface 00 of the humidifying liquid to ensure non-water humidifying, and in this example, the oxygen second inlet 112 extends into the container cavity 10 through a hollow flow guiding component 113, and can also be formed by an extending part of the container shell 1 a; the liquid injection structure 6 with the liquid injection passage 60 is connected with the container 1, the container is composed of a shell 1a, a shell 1b and a shell 1c, at least part of the inner space 102 of the shell 1b receives humidifying liquid conveyed by the liquid injection passage 60 as a liquid accommodating space 102, a space 101 without humidifying liquid between the shell 1a and the shell 1b is an oxygen humidifying space 101 for mixing dry oxygen and water vapor, a space 103 without humidifying liquid between the shell 1c and the shell 1b is an overflow accommodating space 103, and the overflow accommodating space 103 is in fluid communication with the oxygen humidifying space 101.
Of course, it is possible that the housing 1c is hermetically connected with the housing 1a to form a space, and the housing 1b is located therein; after the case 1a is connected to the case 1b, the case 1c may be connected to the case 1b (not shown).
In the present embodiment, the overflow receiving space 103 formed by the container housing 1c is hermetically connected to the container housing 1a by the container housing 1 c; the housing 1b participates in forming a humidifying liquid accommodation space 102, which is fixedly connected to the inner wall of the container housing 1 a; the overflow receiving space 103 is in fluid communication with the oxygen humidification space 101, in this case in communication with the overflow receiving space 103 through one or more communication ports 100 provided in the housing 1 b.
The container cases 1a, 1b, 1c may be molded with a medical resin such as PP, PC, ABS.
When the liquid 0 in the liquid accommodating space 102 excessively enters the container cavity 10 due to the inclination of the container 1 and the like and exceeds the volume of the liquid accommodating space 102, the liquid flows into the overflow accommodating space 103 through the communication port 100, and the possible risk that the liquid enters the human respiratory tract is eliminated.
In normal use, the overflow receiving space 103 is a gas dead space, and no obvious air flow passes through the overflow receiving space, so that the humidification of oxygen is not affected.
Example 2:
as shown in fig. 2A, an oxygen outlet structure 12 containing an oxygen passage 120 is provided on the top end side of the housing 1a, and an oxygen outlet 121 communicating with the outside is provided; the liquid injection structure 6 is arranged close to the oxygen outlet structure 12, the liquid injection structure 6 is arranged below the oxygen outlet structure 12, a liquid inlet 62 is arranged outside the liquid injection structure 6 in the oxygen outlet structure, and the liquid injection structure 6 can be an independent part or assembly or can be a part of the container shell with the same function; the humidifying liquid 0 enters the inner cavity 10 of the container through the liquid inlet 62, the liquid injection passage 60 in the liquid injection structure 6 and the liquid outlet 61 in the inner cavity 10 of the container, when the liquid level 00 continuously rises, the valve component 4 which can be driven by buoyancy at the liquid outlet 61 synchronously rises until the liquid outlet 61 is closed, at the moment, the buoyancy acting on the valve component 4 is greater than the hydrostatic pressure of external liquid, and the liquid level no longer rises; when part of the humidifying liquid is taken away by the dry oxygen, the liquid level slightly drops, the liquid outlet 61 is opened, part of the liquid enters the inner cavity 10 of the container, the liquid level slightly rises, then the valve part 4 seals the liquid outlet 61 again, and the change of the liquid level 00 is very tiny, so that the structure can ensure the relative constancy of the liquid level 00 without causing obvious fluctuation of the humidifying effect.
The "buoyancy-drivable valve member 4" means that the valve member 4 is connectable to the buoyancy member 3 (see embodiment 6), and the valve member 4 is driven by being pulled by the buoyancy member 3 when it moves with the liquid level 00; or the valve member 4 itself may be floatable and thus buoyancy driven. This embodiment shows that the valve member 4 itself is floatable.
The "liquid injection structure 6 is disposed close to the oxygen outlet structure 12" refers to the close proximity of the two structures, i.e. the liquid injection structure 6 and the oxygen outlet structure 12 are not spatially coupled, but are relatively close to each other, but can be touched by a single finger of an operator at the same time. The special design can enable synchronous operation of oxygen transportation after humidification and continuous injection of humidification liquid to be possible, and clinical use is more convenient.
In addition, as liquid 0 enters the container interior 10 from the liquid outlet 61; the container inner cavity 10 is divided into a liquid containing space 102 and an oxygen humidifying space 101 thereon, wherein the oxygen humidifying space 101 refers to a space where dry oxygen is mixed with a liquid level 00 saturated water vapor layer to finally humidify the oxygen.
In this embodiment, the liquid outlet 61 of the liquid injection structure 6 is not wall-mounted and is open to the container cavity 10.
The "opening of the liquid outlet 61 without the wall attachment" means that the liquid injection structure 6 extends to the container cavity 10 so that the liquid outlet 61 is suspended in the container cavity 10 and is not the container wall; of course, it is also possible that a separate part of the liquid injection structure 6 is formed by penetrating the container cavity 10, preferably in a vertical position, which is advantageous for the liquid outlet 61 to be closed by the buoyancy driven valve member 4.
As shown in fig. 2B, an oxygen delivery pipeline 9 used in combination with the above-mentioned safe oxygen humidifying device, the main body is a hollow flexible hose, the terminal end can be connected with a nose plug, a mask, etc. (not shown), the connection part 91 of the oxygen delivery pipeline 9 and the humidifying device container 1 is a gas-liquid synchronous connection part 91 for preventing misplug, and is provided with a gas communication port 911 communicated with an oxygen outlet 121 and a liquid communication port 912 simultaneously communicated with a liquid inlet 62; the liquid communication port 912 communicates with the external liquid inlet 9121 via a liquid passage 9120, and the gas passage 9110 communicates with the delivery pipe inner chamber 90; in the figure, the vertical arrows and the left arrows show the flow direction of the liquid, and the right arrows show the flow direction of the oxygen.
The "gas-liquid synchronous connection portion 91" means that the liquid path and the gas path can be simultaneously connected by one insertion, which greatly facilitates the operation, and the error insertion preventing or foolproof structure, such as the size and/or shape of the gas communication port 911 and the liquid communication port 912 are different, so that the error insertion preventing or foolproof structure cannot be inserted, thereby avoiding the occurrence of possible accidents.
The gas-liquid synchronous connection in this figure is a vertically inserted non-blocking spatial coupling connection of the liquid channels 9120 and the gas channels 9110.
The "penetration" refers to, for example, that the vertical portion of the liquid passage 9120 crosses over from the horizontally-expanded gas passage 9110 by vertical penetration, and the penetration region is left with a gap, without blocking the gas passage 9110, that is, the outer diameter of the vertically-penetrating portion of the liquid passage 9120 is smaller than the inner diameter of the gas passage 9110.
As a variation of this embodiment, fig. 2C shows that a hollow sharp member 9124 having a communication port 9123 is provided in the liquid passage 9120 of the gas-liquid synchronization connection portion 91, specifically in the vertical portion thereof, and the tip of the sharp member 9124 faces the external liquid inlet 9121.
As a further variation, fig. 2D shows the tip of the sharp member 9124 facing the external liquid inlet 9121; the communication port 9123 is closed by an elastic member 9125; preferably, the elastic member is also elastically restored after being pierced by the tip of the sharp member 9124, so that the communication port 9123 is sealed again, and this design is designed so that the liquid does not easily flow out of the container cavity 10 of the humidifying device due to the pressure rise of the container cavity 10 when the communication port 9123 is separated from the external humidifying device container 8, and the humidifying device container 8 can be replaced for a plurality of times.
Further for convenience, as shown in fig. 2E and 2F, the gas-liquid synchronous connection portion 91 of the oxygen delivery pipe 9 is connected with the humidifying liquid container 8 as a whole; the "connection in one piece" may be a part of the humidifying liquid container 8, such as a part of the neck 81 or a vertical part of the entire neck which is inserted into the liquid passage 9120 of the connection portion 91 of the oxygen transmission pipeline 9, and the sealing member 82 of the neck 81 of the humidifying liquid container 8 does not touch the sharp member 9124, and when in use, the gas communication port 911 is connected with the oxygen passage 120 of the humidifying device and then is communicated with the sharp member 9124; the sealing member 82 may be provided in the liquid communication port 912 without using the sharp member 9124, and the humidifying liquid container 8 may be in communication with the liquid passage 9120, and the sealing member 82 may be a PE film or an aluminum foil film which is easily torn or pierced, or may be an elastic rubber plug.
Further as shown in fig. 2F, the wetting fluid container 8 has a shape comprising a central opening or "U-shape" which is easy to attach to the oxygen flow meter 7.
The connecting portion 91 of the oxygen delivery pipe 9 may be made of a hard medical resin, or may be made of a flexible material such as silicone rubber, polyvinyl chloride, thermoplastic elastomer, or the like, or may be formed by combining two members having the same or different hardness.
Example 3:
as shown in fig. 3, unlike the embodiment 2, the liquid injection passage 60 of the liquid injection structure 6 on the humidifying device in this embodiment is connected to the oxygen passage 120 of the oxygen outlet structure 12 by a vertically inserted non-blocking space coupling, a part of the liquid injection passage 60 vertically penetrates through the horizontally-opened oxygen passage 120, and the outer diameter of the penetration part is smaller than the inner diameter of the oxygen passage 120 of the penetration part, so that the penetration is non-blocking. The humidifying liquid 0 enters the container inner cavity 10 through a liquid inlet 62, a liquid injection passage 60 in the liquid injection structure 6 and a liquid outlet 61 positioned in the container inner cavity 10; and humidified oxygen flows out from the oxygen outlet 121; in the figure the vertical arrows indicate the liquid flow direction and the two horizontal right arrows indicate the oxygen flow direction.
Further, in the present embodiment, the liquid injection passage 60 of the protruding container 1 is provided with a sharp member 63 having a communication port 64, and the sharp member 63 pierces the sealing member 82 of the external humidification liquid container 8 to allow the humidification liquid 0 to enter the container interior 10.
Example 4:
as shown in fig. 4, unlike the embodiment 3, a separate member 5 has a portion 51 thereof connected to the oxygen inlet structure 11 or the outlet structure 12 (the drawings of this embodiment only show the case of connection to the inlet structure 11); one part is a diversion part 52 comprising a disk shape and a wheel shape, a discontinuous or continuous convex rib 53 which is distributed in a labyrinth shape, an involute shape, a spiral line shape and the like is arranged below the diversion part, an opening 530 is arranged on the diversion part, and the opening is arranged above the liquid level 00; the other part of the liquid injection structure 54 forming a column-shaped hollow is connected with a liquid inlet 62 on the container 1; the whole humidifying device main body has only four parts, namely the shells 1a, 1b and 1c and the independent parts 5, and the humidifying device is convenient to assemble and low in cost.
Example 5:
as shown in fig. 5A, the liquid injection passage 60 of the liquid injection structure 6 on the humidifying device is connected to the oxygen passage 120 of the oxygen outlet structure 12 in a mutually telescopic non-blocking spatial coupling manner, wherein a part of the liquid injection passage 60 is shown to be telescopic in the oxygen passage 120, in which case the communication opening on the sharp part 63 is the liquid inlet 62.
As shown in fig. 5B, the gas-liquid synchronous connection of the oxygen delivery pipe 9 used in combination with the above-mentioned case also selects a telescopic space coupling connection in which the liquid passage 9120 is sleeved in the gas passage 9110.
Optionally, the gas-liquid synchronous connection portion 91 of the oxygen delivery pipe 9 is connected with the humidifying liquid container 8 into a whole; specifically, a part of the humidification liquid container 8, such as the neck 81, partially or entirely extends into the gas passage 9110 of the connection portion 91 of the oxygen delivery tube 9, and the sealing member 82 of the neck 81 of the humidification liquid container 8 is pierced by the sharp member 63 provided in the liquid injection passage 60 of the humidification device container 1 to allow the liquid to enter the humidification device container interior chamber 10.
The downward arrow in fig. 5B indicates the liquid flow direction, and the upward and rightward arrows indicate the oxygen flow direction.
The upward two arrows in fig. 5A indicate the flow direction of oxygen, and oxygen flows out from the communication port between the liquid injection passage 60 and the oxygen passage 120.
The oxygen inlet 110 or the second inlet 112 of the humidification device vessel 1 is provided with a gas flow indicating member 114 that moves with the flow of gas.
The term "move with the gas flow" means that the component can rotate, shake up and down or left and right, and the like, which is easy to observe visually, so as to indicate the gas flow; further such rotation or shaking may cause the liquid surface 00 to fluctuate and thereby promote gas humidification, because the surface area of the fluctuating liquid surface in contact with the drying gas per unit time is larger and hydrogen bonds between the fluctuating liquid surface water molecules are more likely to break.
Example 6:
as shown in fig. 6, unlike embodiment 5, the liquid outlet 61 of the liquid injection structure 6 is opened at the bottom of the container 1, the valve member 4 is movably located in the valve member receiving chamber 600 of the liquid injection structure 6, and the valve member 4 is connected to a buoyancy member 3.
When the liquid 0 entering the inner cavity 10 of the container reaches a certain volume, the buoyancy component 3 floats upwards to pull the valve component 4 to close the liquid outlet 61 below the liquid level, and of course, the hydrostatic pressure generated by the liquid in the humidifying liquid container 8 also promotes the closing of the valve component to the liquid outlet 61; at this time, the inner cavity 10 of the container 1 of the humidifying device is divided into a liquid accommodating space 102 and an oxygen humidifying space 101 above the liquid level 00, oxygen or other gases to be humidified enter the oxygen humidifying space 101 through the air inlet 111 and directly contact with the liquid level 00 so as to bring moisture into the air flow, and flow out from the air outlet 121 or flow into the oxygen conveying pipeline 9 from the air outlet 121.
The "valve member accommodation chamber 600 of the liquid injection structure 6" refers to a structure that accommodates the valve member 4 and can be abutted against the external liquid delivery pipe 65, and may be constituted by two members.
The "the valve member 4 is movably disposed in the valve member receiving chamber 600 of the liquid injection structure 6" means that the space of the valve member receiving chamber 600 is designed such that the valve member 4 can move at least up and down, and a gap is left between the valve member 4 and at least one side of the inner wall of the valve member receiving chamber 600, and the liquid can flow in the gap.
The valve member 4 is connected to the buoyancy member 3, and the buoyancy member 3 is connected to the valve member 4 via a connection member 40 including a connection rod 401 and a connection wire 402; when the buoyancy member 3 is connected to the valve member 4 via the flexible connection line 402, the valve member 4 is constituted of a material having a higher specific gravity than water; the valve member 4 may be spherical, double-ended prismatic, elliptical, cylindrical, etc.
The valve member 4 is made of a material having a higher specific gravity than water, and the valve member 4 having a lower specific gravity than water is prevented from being pressed toward the liquid outlet 61 by the hydrostatic pressure generated by the liquid in the wetting fluid container 8 to close the liquid outlet 61, so that the liquid 0 cannot enter the liquid accommodating space 102.
Further, when the pressure in the container inner chamber 10 is too high due to the oxygen supply line 9 being pinched, the valve member 4 is pressed toward the inlet 601 of the valve member accommodating chamber 600 by the buoyancy member 3 connected by the rigid connection member 40, thereby closing the valve member accommodating chamber, and the wetting fluid 0 does not continuously flow back to the wetting fluid container 8.
The liquid delivery line 65 connects the valve member accommodation chamber 600 to the liquid inlet 62 via any means within the vessel lumen 10, outside the vessel lumen 10 and coanda path, or connects the valve member accommodation chamber 600 directly to the wetting fluid container 8.
The "wall-attached path" refers to that at least a part of the liquid conveying pipeline 65 and the inner wall and the outer wall of the container 1 are in an attached state, so that the space is saved to the greatest extent, the appearance is more attractive, the independent liquid conveying pipeline 65 is embedded into the inner wall and the outer wall of the container, or a part of the independent liquid conveying pipeline 65 is in sealing connection with the inner wall and the outer wall of the container to form the liquid conveying pipeline.
The liquid delivery line 65 of this embodiment is connected at one end to the liquid inlet 62 on the container 1 and at the other end to the inlet 601 of the valve member accommodation chamber 600.
The liquid in the humidifying liquid container 8 firstly enters the liquid inlet 62 near the air outlet 121 of the humidifying device container 1 and is then conveyed to the valve member accommodating cavity 600 by the liquid conveying pipeline 65, and is injected into the liquid accommodating space 102 of the container inner cavity 10 until the buoyancy member 3 floats upwards to drive the valve member 4 to seal the liquid outlet 61 of the valve member accommodating cavity 600.
Further, the buoyancy member 3 may be formed in a ring-like or wheel-like centrifugal distribution.
The center part of the annular and wheel-shaped buoyancy member 3 is completely or partially hollowed out, so that the dry oxygen can contact more liquid level 00, thereby realizing better humidifying effect; the centrifugal distribution means that the part of the buoyancy component exposed out of the liquid level 00 is far away from the center of the container, so that the interference on the oxygen flow is avoided.
Further, a liquid level disturbance element 115, which moves along with the flow of the gas and is adjacent to or penetrating the liquid level 00, may be connected to the oxygen inlet 110 or the second inlet 112 of the humidification device container 1, and the liquid level disturbance element 115 may be in a flexible strip shape (not shown).
The "liquid level disturbance" is to make the liquid level 00 continuously fluctuate as irregularly as possible by the turbulence of the gas or the direct action of the liquid level disturbance component 115, so as to promote the evaporation of the liquid water and improve the humidification effect, and the disturbance component 115 is in a fan blade structure in this example.
An extension of the concept (not shown) is that the oxygen inlet 110 may be formed by a flexible thin-walled tube with at least partial lumen occlusion, where "at least partial occlusion" refers to partial or complete lumen occlusion of the tube without or with a small pressure differential, and where pressurized gas may impact the lumen to expand; the locking can be a complete locking or an incomplete locking; the air flow can lead the flexible thin wall to be unevenly expanded and the closing and the expansion to be alternately carried out at different positions, so that the position of the opening of the pipeline is continuously changed, and the generated air turbulence continuously irregularly disturbs the liquid level, thereby improving the humidifying effect.
Claims (13)
1. A safe oxygen humidification device comprising: a container (1) connected with an oxygen inlet structure (11) and an oxygen outlet structure (12) and the inner cavity (10) of which can store humidifying liquid (0), wherein an oxygen inlet (110) in the oxygen inlet structure (11) is provided with a first inlet (111) for oxygen access and a second inlet (112) positioned in the inner cavity (10) of the container; an oxygen passage (120) of the oxygen outlet structure (12) is communicated with the inner cavity (10) of the container and is provided with an oxygen outlet (121); the liquid injection structure (6) is connected with the container (1) and provided with a liquid injection passage (60), and is characterized in that the liquid injection passage (60) in the liquid injection structure (6) is closely adjacent to an oxygen passage (120) of an oxygen outlet structure (12) and/or is in space coupling arrangement with the oxygen passage (120), the container at least comprises a first shell (1 a), a second shell (1 b) and a third shell (1 c), at least part of an inner space (102) of the second shell (1 b) is used for receiving humidifying liquid (0) conveyed by the liquid injection passage (60) and is a liquid accommodating space (102), a space without humidifying liquid between the first shell (1 a) and the second shell (1 b) is an oxygen humidifying space (101) for mixing dry oxygen and water vapor, a space without humidifying liquid between the third shell (1 c) and the second shell (1 b) is an overflow accommodating space (103), one or more communication ports (100) are formed in the second shell (1 b) and are communicated with the overflow accommodating space (103), and the overflow accommodating space (103) is in fluid communication with the oxygen humidifying space (101); the oxygen humidifying device is matched with the oxygen conveying pipeline (9), the connecting part (91) of the oxygen conveying pipeline (9) and the humidifying device container (1) is a misplug-proof gas-liquid synchronous connecting part (91), and a gas communication port (911) communicated with the oxygen outlet (121) and a liquid communication port (912) simultaneously communicated with the liquid inlet (62) are arranged; the liquid communication port (912) communicates with the external liquid inlet (9121) via a liquid passage (9120), and the gas passage (9110) communicates with the delivery pipe inner chamber (90).
2. A safety oxygen humidification device according to claim 1, characterized in that the humidification liquid (0) enters the vessel interior (10) through a liquid inlet (62), a liquid injection passage (60) in the liquid injection structure (6), a liquid outlet (61) located in the vessel interior (10), the liquid outlet (61) being closable by a buoyancy driven valve member (4); the second inlet (112) of the oxygen inlet (110) is located above the liquid level (00).
3. A safety oxygen humidification device according to claim 1, characterized in that the oxygen passage (120) of the oxygen outlet structure (12) and the liquid injection passage (60) in the liquid injection structure (6) are arranged in a mutually nested non-blocking spatial coupling.
4.A safety oxygen humidification device according to claim 1, characterized in that the oxygen passage (120) of the oxygen outlet structure (12) and the liquid injection passage (60) in the liquid injection structure (6) are provided in an inter-penetrating non-blocking penetrating arrangement comprising a vertical penetration, the liquid injection passage (60) being provided with a hollow sharp portion (63) having a liquid inlet (62).
5. A safety oxygen humidification device according to claim 1, characterized in that the liquid outlet (61) of the liquid injection structure (6) is non-wall-mounted in the container interior (10).
6. A safety oxygen humidification device according to claim 1, characterized in that the liquid outlet (61) of the liquid injection structure (6) is provided in the bottom of the container (1), the valve member (4) is movably located in the valve member receiving chamber (600) of the liquid injection structure (6), and the valve member (4) is connected to a buoyancy member (3).
7. A safety oxygen humidification device according to claim 1, characterized in that a flow indicating member (114) moving with the flow of gas is provided in the oxygen inlet (110) or at the second inlet (112) of the humidification device container (1).
8. A safety oxygen humidification device according to claim 1, characterized in that a separate part (5) is connected with the oxygen inlet structure (11) or the outlet structure (12) at a part (51), a part being a flow guiding part (52) comprising a disc-like, wheel-like shape, and the other part being a column-like hollow liquid injection structure (54) connected with the liquid inlet (62) on the container (1).
9. A safety oxygen humidification device according to claim 1, characterized in that the liquid passage (9120) of the gas-liquid synchronization connection (91) and the gas passage (9110) are arranged in a non-blocking spatial coupling including vertical penetration and nesting.
10. A safety oxygen humidification device according to claim 1, characterized in that the liquid passage (9120) of the gas-liquid synchronization connection portion (91) is provided with a hollow sharp member (9124) having a communication port (9123), and the tip of the sharp member (9124) faces the external liquid inlet port (9121).
11. A safety oxygen humidifying device according to claim 1, wherein the liquid passage (9120) of the gas-liquid synchronization connection (91) is provided with a hollow sharp member (9124) having a communication port (9123), the tip of the sharp member (9124) being directed toward the external liquid inlet (9121); the communication port (9123) is closed by an elastic member (9125).
12. A safety oxygen humidification device according to claim 1, characterized in that the gas-liquid synchronization connection (91) is integral with the humidification liquid container (8).
13. A safety oxygen humidification device according to claim 1, characterized in that the gas-liquid synchronization connection (91) is integral with the humidification liquid container (8), the humidification liquid container (8) having a shape comprising a central opening or "U-shape" which is easily attachable to the flow meter (7).
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| CN201810949850.4A CN108939247B (en) | 2018-08-20 | 2018-08-20 | Safe oxygen humidifying device |
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| CN201810949850.4A CN108939247B (en) | 2018-08-20 | 2018-08-20 | Safe oxygen humidifying device |
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| CN108939247B true CN108939247B (en) | 2023-09-19 |
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| CN108939247A (en) | 2018-12-07 |
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