CN212662438U - Humidifying device for respiratory support equipment - Google Patents
Humidifying device for respiratory support equipment Download PDFInfo
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- CN212662438U CN212662438U CN202020696342.2U CN202020696342U CN212662438U CN 212662438 U CN212662438 U CN 212662438U CN 202020696342 U CN202020696342 U CN 202020696342U CN 212662438 U CN212662438 U CN 212662438U
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Abstract
The utility model discloses a humidifying device for breathing support equipment, which comprises a box body, a water replenishing cavity and a humidifying cavity are arranged in the box body, the humidifying cavity is positioned below the water replenishing cavity, an infusion channel and a pressure balance channel are connected between the water replenishing cavity and the humidifying cavity, the top end of the infusion channel and the top end of the pressure balance channel respectively extend into the water replenishing cavity, the bottom end of the infusion channel and the bottom end of the pressure balance channel respectively extend into the humidifying cavity, and the top end of the pressure balance channel is higher than the top end of the infusion channel; an air inlet pipe and an air outlet pipe are arranged on the humidifying chamber, and a heating source is arranged in the humidifying chamber. Need not set up hoisting device, need not set up the floater, therefore do not have the condition that the floater is burnt out, can realize automatic water supply. The utility model discloses be applied to the medical instrument field.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a humidifying device for a respiratory support device.
Background
Before entering the respiratory system of a human body, the air of the respirator is generally humidified by a humidifying device. The hot steam is generated by heating water in the humidifying device, the air of the breathing machine is humidified by the hot steam, and the water supplement of the existing humidifying device generally adopts floating ball water supplement.
The scheme of adopting the floating ball to replenish water has the following defects:
1. a certain height difference is required to be ensured between a water supply tank and a humidifying tank of the humidifying device;
2. after the water in the humidifying tank of the humidifying device is dried, the floating ball is easily scalded.
Patent document with the authorization number of CN208464902U discloses a portable self-heating adjustable automatic water supply type breathing machine humidifying tank, which consists of a tank body and a water supply pipe, wherein the lower end of the water supply pipe extends 2-3 cm into the tank body, and the lower end of the water supply pipe is provided with an automatic adjustable water supply valve. The automatic adjustable water injection valve consists of a valve body, a valve seat hole, a valve plug, a threaded valve rod, an adjusting nut ring, a connecting rod, a floating ball, a slide way groove and a handle.
Patent document with the grant number of CN202961442U discloses a breathing machine humidifier, including the humidifying bottle, this humidifying bottle is including a casing and the cavity that forms by this casing, the humidifying bottle is provided with two logical gas ports, and one of them blow vent is the air inlet, and another blow vent is the gas outlet, a baffle is stretched out to integrative slant downwardly directed in blow vent inner wall face in the cavity, this baffle with be provided with a gas passage between the humidifying bottle casing.
In the above patent documents, the water is supplemented by using the principle of a floating ball or a floating valve, and the above technical problems still exist.
SUMMERY OF THE UTILITY MODEL
The main objective of the utility model is to provide a humidifying device for breathing support equipment need not set up hoisting device, need not set up the floater, therefore does not have the condition that the floater is burnt out, can realize automatic water supply.
In order to achieve the purpose, the utility model provides a humidifying device for a respiratory support device, which comprises a box body, wherein a water replenishing cavity and a humidifying cavity are arranged in the box body, the humidifying cavity is positioned below the water replenishing cavity, an infusion channel and a pressure balance channel are connected between the water replenishing cavity and the humidifying cavity, the top end of the infusion channel and the top end of the pressure balance channel respectively extend into the water replenishing cavity, the bottom end of the infusion channel and the bottom end of the pressure balance channel respectively extend into the humidifying cavity, and the top end of the pressure balance channel is higher than the top end of the infusion channel;
an air inlet pipe and an air outlet pipe are arranged on the humidifying chamber, and a heating source is arranged in the humidifying chamber.
In a further improvement, the bottom end of the pressure balance channel is lower than the bottom end of the infusion channel, so that even if the breathing support equipment stops working, namely the breathing support equipment stops ventilation operation, the water locking function can be achieved, and water in the water replenishing cavity cannot flow into the humidifying cavity. Of course, it is also possible that the bottom end of the pressure balance channel is higher than the bottom end of the infusion channel, only after the respiratory support device stops working, namely after the respiratory support device stops ventilating, the water replenishing chamber is required to be separated from the humidifying chamber, otherwise, water can always flow into the humidifying chamber and cannot be stopped, and other functions of the two designs are not different when the respiratory support device normally works.
In a further improvement, the pressure balance channel comprises a first vent pipe and a second vent pipe, the top end of the first vent pipe extends into the water replenishing cavity, the bottom end of the second vent pipe extends into the humidifying cavity, and the bottom end of the first vent pipe is in sealed butt joint with the top end of the second vent pipe. The pressure balance channel is divided into a first vent pipe and a second vent pipe, so that the maintenance and the replacement are more convenient.
Further improved, be equipped with sealed cavity between moisturizing cavity and the humidifying cavity, first breather pipe and second breather pipe can be dismantled respectively and insert and establish in sealed cavity, the bottom of first breather pipe and the top of second breather pipe extend to in the sealed cavity respectively.
In a further improvement, a first sealing ring is arranged at the joint of the first vent pipe and the sealing cavity, and a second sealing ring is arranged at the joint of the second vent pipe and the sealing cavity. Seal between with first breather pipe and the sealed cavity through first sealing washer, seal between with second breather pipe and the sealed cavity through the second sealing washer, guarantee the gas tightness of first breather pipe and the butt joint of second breather pipe.
In a further improvement, a first opening is formed in the bottom of the water replenishing cavity, a valve is arranged at the first opening, and the top end of the infusion channel is in butt joint with the first opening. When the water replenishing cavity is detached from the humidifying cavity, the first opening can be sealed through the valve, and water in the water replenishing cavity is prevented from dripping from the first opening.
In a further improvement, a sinking channel which is sunken downwards is arranged at the bottom of the water replenishing chamber, and the first opening is arranged at the bottom of the sinking channel. Through setting up the sedimentation channel, the water in the moisturizing chamber of being convenient for assembles the sedimentation channel to flow into in the humidifying chamber from the first opening in the sedimentation channel.
In a further improvement, the bottom end of the pressure balance channel is a horn-shaped opening. When the bottom end opening of the pressure balance channel is too small, when the water surface in the humidification chamber is slightly lower than the bottom end of the pressure balance channel, the bottom end of the pressure balance channel may still be sealed by a water film, and therefore the opening of the bottom end of the pressure balance channel needs to be increased by adopting the horn-shaped opening, so that the pressure sensing sensitivity of the pressure balance channel can be improved. Specifically, the trumpet-shaped opening is arranged at the bottom end of the second vent pipe.
In a further improvement, the top end of the transfusion channel is a funnel opening. The water in the water replenishing cavity can conveniently flow into the humidifying cavity through the opening of the funnel.
In a further improvement, a second opening is arranged at the top of the water replenishing cavity, and a cover is arranged on the second opening. Can wash or other work in the moisturizing cavity through the lid, simultaneously, the lid can be sealed with the moisturizing cavity, guarantees the leakproofness of moisturizing cavity.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect:
the utility model discloses a humidifying device for breathing support equipment, high-pressure air in the turbine have a part of water to fill in the humidifying cavity from the intake pipe entering humidifying cavity, and the heating source in the humidifying cavity is to the water heating in the humidifying cavity, and high-pressure air passes through the hot vapor in the humidifying cavity and humidifying after the humidifying cavity, then flows in human respiratory from the outlet duct. The heating source in the humidification chamber can be a resistance wire or a steam heating lamp device arranged at the bottom of the humidification chamber.
The water replenishing chamber is a sealed chamber, and the pressure balancing channel is used for balancing air pressure between the water replenishing chamber and the humidifying chamber. Specifically, when the heating source in the humidification chamber heats water, along with the evaporation of water vapor, when the water surface in the humidification chamber is lower than the bottom end of the pressure balance channel, the water stored in the water supplementing chamber can be supplemented into the humidification chamber through the infusion channel; when the water surface in the humidification cavity is not through the bottom of the pressure balance channel, the air pressure in the humidification cavity is larger than the air pressure in the water replenishing cavity, so that the water in the water replenishing cavity cannot be replenished into the humidification cavity from the infusion channel.
The utility model discloses a humidifying device for breathing support equipment can realize automatic moisturizing and automatic effect that ends to the humidifying cavity through the pressure balance passageway, does not have the requirement of difference in height to moisturizing cavity and humidifying cavity between, need not set up the floater, therefore does not have the condition of scalding the floater.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a humidifying box of a respirator in the prior art;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a perspective view of a humidification device for a respiratory support apparatus;
fig. 4 is a cross-sectional view of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators in the embodiments of the present invention, such as upper, lower, left, right, front and rear … …, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 4, a humidification device for a respiratory support apparatus includes a box body 1, a water replenishing chamber 2 and a humidification chamber 3 are arranged in the box body 1, the humidification chamber 3 is located below the water replenishing chamber 2, an infusion channel 4 and a pressure balance channel 5 are connected between the water replenishing chamber 2 and the humidification chamber 3, the top end of the infusion channel 4 and the top end of the pressure balance channel 5 extend into the water replenishing chamber 2 respectively, the bottom end of the infusion channel 4 and the bottom end of the pressure balance channel 5 extend into the humidification chamber 3 respectively, and the top end of the pressure balance channel 5 is higher than the top end of the infusion channel 4;
an air inlet pipe 6 and an air outlet pipe 7 are arranged on the humidifying chamber 3, and a heating source is arranged in the humidifying chamber 3.
Referring to fig. 1 to 2 again, the existing breathing machine includes a humidified water box 8, an inlet pipe 81 and an outlet pipe 82 are arranged on the humidified water box 8, high-pressure air in the turbine is connected into the humidified water box 8 from the inlet pipe 81, a heating chamber 83 is arranged in the humidified water box 8, water is filled in the heating chamber 83, a heating component is arranged at the bottom of the heating chamber 83 to heat water in the heating chamber 83, the high-pressure air passes through the heating chamber 83 and is humidified by hot water vapor in the heating chamber 83, and then the high-pressure air flows into a breathing system of a human body from the outlet pipe 82. A water storage tank 9 is connected above the heating chamber 83, water is stored in the water storage tank 9, an air pressure pipe 93 is connected to the water storage tank 9, and the air pressure pipe 93 connects the water storage tank 9 with the outside to balance air pressure. The water storage tank 9 and the heating chamber 83 are communicated through a water conveying pipe 91, a vertical slide 831 is arranged at the top of the heating chamber 83, a silica gel plug 832 is arranged in the slide 831 in a sliding manner, a floating ball 92 is connected to the bottom end of the silica gel plug 832, the floating ball 92 floats on the water surface of the heating chamber 83, and the top end of the silica gel plug 832 is movably butted with the bottom end of the water conveying pipe 91. When the water in the heating chamber 83 is sufficient, the floating ball 92 floats upwards, the silica gel plug 832 blocks the bottom end of the water pipe 91, and the water in the water storage tank 9 cannot flow into the heating chamber 83 from the water pipe 91; when the water in the heating chamber 83 is insufficient, the floating ball 92 sinks, the silica gel plug 832 does not block the water pipe 91, and the water in the water storage tank 9 flows into the heating chamber 83 from the water pipe 91.
The technical scheme has the following defects:
1. because the air pressure in the heating chamber 83 is higher than the external atmospheric pressure, the water storage tank 9 needs to be lifted to a height to maintain normal water replenishing, and an additional lifting device is needed to ensure that the breathing machine can automatically replenish water during normal operation.
2. After the water in the heating chamber 83 is dried, the floating ball 92 directly contacts with the bottom surface of the heating chamber 83, and the floating ball 92 is burnt and deformed, thereby influencing the use of the floating ball and the control of the next water level.
Referring to fig. 3 to 4 again, in the humidification device for a respiratory support apparatus of the present embodiment, high-pressure air in the turbine enters the humidification chamber 3 from the air inlet pipe 6, a part of water is filled in the humidification chamber 3, the heating source in the humidification chamber 3 heats the water in the humidification chamber 3, and the high-pressure air passes through the humidification chamber 3, is humidified by the hot water vapor in the humidification chamber 3, and then flows into the respiratory system of the human body from the air outlet pipe 7. The heating source in the humidification chamber 3 can be a resistance wire or a steam heating lamp device arranged at the bottom of the humidification chamber 3.
The water replenishing chamber 2 is a sealed chamber, and the pressure balancing channel 5 is used for balancing the air pressure between the water replenishing chamber 2 and the humidifying chamber 3. Specifically, when the heating source in the humidification chamber 3 heats water, along with the evaporation of water vapor, when the water surface in the humidification chamber 3 is lower than the bottom end of the pressure balance channel 5, the water stored in the water replenishing chamber 2 can be replenished into the humidification chamber 3 through the liquid conveying channel 4; when the water surface in the humidification chamber 3 is not through the bottom of the pressure balance channel 5, the air pressure in the humidification chamber 3 is larger than the air pressure in the water replenishing chamber 2, so that the water in the water replenishing chamber 2 cannot be replenished into the humidification chamber 3 from the liquid conveying channel 4.
The humidifying device for the respiratory support equipment of the embodiment can realize automatic water replenishing and automatic stopping effects on the humidifying chamber 3 through the pressure balance channel 5, does not have the requirement of height difference between the water replenishing chamber 2 and the humidifying chamber 3, and does not need to be provided with the floating ball, so that the condition that the floating ball is scalded does not exist.
In this embodiment, as a further improvement of the above technical solution, the bottom end of the pressure balance channel 5 is lower than the bottom end of the infusion channel 4, so that even when the respiratory support device stops working, that is, when the respiratory support device stops ventilation operation, the water locking function can be achieved, and water in the water replenishing chamber 2 does not flow into the humidification chamber 3. Of course, it is also possible that the bottom end of the pressure balance channel 5 is higher than the bottom end of the infusion channel 4, only after the respiratory support device stops working, that is, after the respiratory support device stops ventilating, the water replenishing chamber 2 needs to be separated from the humidification chamber 3, otherwise, water will flow into the humidification chamber 3 all the time and will not be stopped, and other functions of the two designs are not different when the respiratory support device works normally.
In this embodiment, as a further improvement of the above technical solution, the pressure balance channel 5 includes a first vent pipe 51 and a second vent pipe 52, a top end of the first vent pipe 51 extends into the moisturizing chamber 2, a bottom end of the second vent pipe 52 extends into the humidification chamber 3, and a bottom end of the first vent pipe 51 and a top end of the second vent pipe 52 are in sealed butt joint. The pressure balance passage 5 is divided into a first vent pipe 51 and a second vent pipe 52, so that the maintenance and the replacement are more convenient.
In this embodiment, as a further improvement of the above technical solution, a sealing chamber 21 is disposed between the water replenishing chamber 2 and the humidifying chamber 3, the first vent pipe 51 and the second vent pipe 52 are detachably inserted into the sealing chamber 21, and the bottom end of the first vent pipe 51 and the top end of the second vent pipe 52 extend into the sealing chamber 21 respectively.
In this embodiment, as a further improvement of the above technical solution, a first sealing ring 511 is disposed at a joint between the first breather pipe 51 and the seal chamber 21, and a second sealing ring 521 is disposed at a joint between the second breather pipe 52 and the seal chamber 21. The first breather pipe 51 and the seal chamber 21 are sealed by the first seal ring 511, and the second breather pipe 52 and the seal chamber 21 are sealed by the second seal ring 521, so that the air tightness of the butt joint of the first breather pipe 51 and the second breather pipe 52 is ensured.
In this embodiment, as a further improvement of the above technical solution, a first opening 22 is provided at the bottom of the water replenishing chamber 2, a valve 23 is provided at the first opening 22, and the top end of the infusion channel 4 is butted with the first opening 22. When the water replenishing chamber 2 is detached from the humidifying chamber 3, the first opening 22 can be closed through the valve 23, and water in the water replenishing chamber 2 is prevented from dripping from the first opening 22.
In this embodiment, as a further improvement of the above technical solution, a settling channel 24 recessed downward is provided at the bottom of the water replenishing chamber 2, and the first opening 22 is provided at the bottom of the settling channel 24. By providing the sedimentation channel 24, it is facilitated that water in the hydration chamber 2 is collected in the sedimentation channel 24 and flows from the first opening 22 in the sedimentation channel 24 into the humidification chamber 3.
In this embodiment, as a further improvement of the above technical solution, the bottom end of the pressure balance channel 5 is a flared opening 53. When the bottom end opening of the pressure balance channel 5 is too small, when the water surface in the humidification chamber 3 is slightly lower than the bottom end of the pressure balance channel 5, there may still be a water film sealing the bottom end of the pressure balance channel 5, and therefore, the flared opening 53 needs to be adopted to increase the opening of the bottom end of the pressure balance channel 5, so as to improve the pressure sensing sensitivity of the pressure balance channel 5. Specifically, a flared opening 53 is provided at the bottom end of the second vent pipe 52.
In this embodiment, as a further improvement of the above technical solution, the top end of the infusion channel 4 is a funnel opening 41. Facilitating the flow of water from the hydration chamber 2 through the funnel opening 41 into the humidification chamber 3.
In this embodiment, as a further improvement of the above technical solution, a second opening is provided at the top of the water replenishing chamber 2, and a cover 25 is provided on the second opening. The cover 25 can be used for cleaning or other work in the water replenishing chamber 2, and meanwhile, the cover 25 can seal the water replenishing chamber 2 to ensure the sealing performance of the water replenishing chamber 2.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. The humidifying device for the respiratory support equipment is characterized by comprising a box body, wherein a water supplementing cavity and a humidifying cavity are arranged in the box body, the humidifying cavity is positioned below the water supplementing cavity, an infusion channel and a pressure balancing channel are connected between the water supplementing cavity and the humidifying cavity, the top end of the infusion channel and the top end of the pressure balancing channel respectively extend into the water supplementing cavity, the bottom end of the infusion channel and the bottom end of the pressure balancing channel respectively extend into the humidifying cavity, and the top end of the pressure balancing channel is higher than the top end of the infusion channel;
an air inlet pipe and an air outlet pipe are arranged on the humidifying chamber, and a heating source is arranged in the humidifying chamber.
2. The humidification device for a respiratory support apparatus of claim 1, wherein a bottom end of the pressure equalization channel is lower than a bottom end of the infusion channel.
3. The humidification device for a respiratory support apparatus of claim 1, wherein the pressure equalization channel comprises a first vent tube and a second vent tube, wherein a top end of the first vent tube extends into the humidification chamber and a bottom end of the second vent tube extends into the humidification chamber, and wherein the bottom end of the first vent tube and the top end of the second vent tube are in sealed abutment.
4. The humidification device for a respiratory support apparatus of claim 3, wherein a sealing chamber is disposed between the water replenishing chamber and the humidification chamber, the first vent pipe and the second vent pipe are detachably inserted into the sealing chamber, and a bottom end of the first vent pipe and a top end of the second vent pipe extend into the sealing chamber.
5. A humidification device for a respiratory support apparatus according to claim 4 wherein a first sealing ring is provided at the junction of the first ventilation tube and the sealing chamber and a second sealing ring is provided at the junction of the second ventilation tube and the sealing chamber.
6. The humidification device for a respiratory support apparatus of claim 1, wherein a first opening is provided at a bottom of the water replenishing chamber, a valve is provided at the first opening, and a top end of the infusion channel is butted with the first opening.
7. The humidification device for a respiratory support apparatus of claim 6, wherein the bottom of the water replenishing chamber is provided with a sinking channel which is concave downwards, and the first opening is provided at the bottom of the sinking channel.
8. A humidification device for a respiratory support apparatus according to any one of claims 1 to 7 wherein the bottom end of the pressure equalisation channel is flared.
9. The humidification device for a respiratory support apparatus of any one of claims 1 to 7, wherein the top end of the infusion channel is a funnel opening.
10. The humidification device for a respiratory support apparatus according to any one of claims 1 to 7, wherein the top of the water replenishing chamber is provided with a second opening, and a cover is arranged on the second opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020142083 | 2020-01-21 | ||
| CN2020201420839 | 2020-01-21 |
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| CN212662438U true CN212662438U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020696342.2U Active CN212662438U (en) | 2020-01-21 | 2020-04-29 | Humidifying device for respiratory support equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388834A (en) * | 2020-01-21 | 2020-07-10 | 湖南明康中锦医疗科技发展有限公司 | Humidifying device for respiratory support equipment |
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2020
- 2020-04-29 CN CN202020696342.2U patent/CN212662438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111388834A (en) * | 2020-01-21 | 2020-07-10 | 湖南明康中锦医疗科技发展有限公司 | Humidifying device for respiratory support equipment |
| CN111388834B (en) * | 2020-01-21 | 2023-12-05 | 湖南明康中锦医疗科技发展有限公司 | Humidification device for respiratory support equipment |
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Address after: 410205 Room 101, 1st floor, north of superstar entrepreneurship base, No. 8 Lujing Road, high tech Development Zone, Changsha, Hunan Patentee after: Hunan Mingkang Zhongjin Medical Technology Co.,Ltd. Address before: 101, North 1st floor, superstar entrepreneurial base, No.8 Lujing Road, high tech Development Zone, Changsha City, Hunan Province, 410205 Patentee before: HUNAN MICOME ZHONGJIN MEDICAL SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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