CN112156313B

CN112156313B - Humidifier and ventilation treatment equipment

Info

Publication number: CN112156313B
Application number: CN202011184335.5A
Authority: CN
Inventors: 刘丽君; 樊静; 庄志
Original assignee: BMC Tianjin Medical Co Ltd
Current assignee: BMC Tianjin Medical Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2022-11-25
Anticipated expiration: 2040-10-28
Also published as: CN112156313A

Abstract

The invention discloses a humidifier and a ventilation treatment device, wherein the humidifier comprises an air inlet, an air passage, an atomization cavity, a driving cavity, a liquid storage cavity and an atomization device; the air inlet is communicated with the atomizing cavity, the air passage penetrates through the side wall of the humidifier and comprises a first one-way valve and a second one-way valve, the first one-way valve is arranged on a first flow path of first gas in the atomizing cavity flowing out of the atomizing cavity, and the second one-way valve is arranged on a second flow path of second gas outside the humidifier flowing into the driving cavity; set up the separator between drive chamber and the stock solution chamber, atomizing device and stock solution chamber intercommunication, atomizing device's play fog mouth is located the atomizing chamber, and when the second gas flowed along the second flow path, the second check valve was opened, and first check valve was closed, and the separator compresses the stock solution chamber, and liquid in the stock solution chamber gets into atomizing device. The humidifier provided by the invention is easy to control the humidity and the temperature of the gas, can control the atomization frequency of the humidifier in real time through the respiratory frequency of a patient, and can improve the utilization rate of the humidified gas.

Description

Humidifier and ventilation treatment equipment

Technical Field

The invention relates to the field of respiratory therapy equipment, in particular to a humidifier and ventilation therapy equipment.

Background

Ventilation therapy devices, which are medical devices capable of replacing the function of spontaneous ventilation with artificial ventilation, play a crucial role in preventing and treating respiratory failure, reducing complications, and saving or prolonging the life of patients.

A ventilation therapy device typically includes a main unit and a humidifier connected between the main unit and a patient, wherein the humidifier can be used for humidifying air so as to provide the air with proper temperature and humidity for the patient. In the prior art, a heating element is usually disposed at the bottom of the humidifier, and the heating element can heat the liquid in the cavity of the humidifier to humidify the gas.

However, the prior art has the defect that the heating temperature of the humidifier is not set properly, and when the heating temperature is set too low, the humidification effect is insufficient, and the use requirements of patients cannot be met; when the heating temperature is set to be too high, the problems of burning of the airway of a patient or melting and deformation of a pipeline and the like can be caused. Therefore, the existing humidifier has the problem that the temperature and the humidity of the gas are difficult to control.

Disclosure of Invention

The invention aims to solve the problem that the temperature and the humidity of the gas in the humidifier are difficult to control in the prior art.

In order to achieve the above object, the present invention provides a humidifier, which comprises an air inlet, an air passage, an atomizing chamber, a driving chamber, a liquid storage chamber, and an atomizing device;

the air inlet is communicated with the atomizing cavity, the air passage penetrates through the side wall of the humidifier and comprises a first one-way valve and a second one-way valve, the first one-way valve is arranged on a first flow path of first air in the atomizing cavity flowing out of the atomizing cavity, and the second one-way valve is arranged on a second flow path of second air outside the humidifier flowing into the driving cavity;

the atomizing chamber, the driving chamber and the liquid storage chamber are isolated from each other, an isolating piece is arranged between the driving chamber and the liquid storage chamber, the atomizing device is communicated with the liquid storage chamber, a mist outlet of the atomizing device is positioned in the atomizing chamber, when the second gas flows along the second flow path, the second check valve is opened, the first check valve is closed, the isolating piece compresses the liquid storage chamber, and liquid in the liquid storage chamber enters the atomizing device.

Optionally, the air passage includes a first air passage and a second air passage, wherein the first air passage penetrates through a side wall of the atomization cavity, and the second air passage is communicated with the driving cavity;

the first check valve is arranged on the first air passage, and when the first check valve is opened, the first gas flows out of the atomizing cavity through the first air passage;

the second check valve is arranged on the second air channel, and when the second check valve is opened, the second air flows into the driving cavity.

Optionally, the second air passage is located inside the humidifier and is in communication with the first air passage;

when the second check valve is opened, the second gas flows into the driving chamber through the first gas passage and the second gas passage.

Optionally, the second air passage penetrates through a side wall of the driving cavity;

when the second check valve is opened, the second gas flows into the driving cavity through the second gas channel.

Optionally, the partition includes a piston, and when the second check valve is opened, the second gas drives the piston to move to compress the fluid storage cavity; or the like, or a combination thereof,

the barrier includes a bladder, and the second gas inflates the bladder to compress the reservoir when the second one-way valve is opened.

Optionally, the humidifier further comprises a flow guide tube;

one end of the flow guide pipe is positioned in the liquid storage cavity, and the other end of the flow guide pipe is communicated with the atomizing device.

Optionally, the atomization device comprises a flow guide slit and an orifice;

the flow guide pipe is communicated with the flow guide seam, and the flow guide seam is communicated with the jet hole, wherein the diameter of the flow guide seam is smaller than that of the flow guide pipe, and the diameter of the jet hole is smaller than that of the flow guide seam.

Optionally, the nozzle hole comprises a first liquid inlet, and the flow guide slit is communicated with the first liquid inlet;

the side wall of the flow guide seam is provided with a protruding structure, and the protruding structure is opposite to the first liquid inlet.

Optionally, the draft tube comprises a second liquid inlet;

the bottom surface of the liquid storage cavity is an inverted conical surface, and the second liquid inlet is opposite to the top point of the conical surface.

Optionally, the humidifier further comprises a pressure increasing valve;

the booster valve is arranged at the end part of the air passage communicated with the driving cavity.

According to another aspect of the invention, there is also provided a ventilation treatment device, comprising a host and the humidifier described above, the host comprising an air outlet;

the air outlet is connected with the air inlet of the humidifier, and air generated by the host machine enters the atomization cavity of the humidifier through the air outlet and the air inlet.

In the embodiment of the invention, the air inlet of the humidifier is communicated with the atomizing cavity, and the air enters the atomizing cavity through the air inlet. The air flue of humidifier can be held the intercommunication with the patient, is provided with first check valve and second check valve in the air flue, and when the patient breathed in, first gas flowed along the direction of first flow path at the atomizing chamber, can be so that first check valve opens, and at this moment, first gas can flow the atomizing chamber through the air flue, gets into the patient and holds. When the patient exhales, the second is gaseous can flow along the direction of second flow path, can be so that the second check valve opens, and at this moment, the second is gaseous can flow into the drive chamber through the air flue, can be so that the volume increase in drive chamber, and the stock solution chamber can be compressed to the spacer between drive chamber and the stock solution chamber to in the atomizing device with the leading-in atomizing chamber of liquid in the stock solution chamber, thereby can realize the purpose of the first gas in the humidifying atomizing chamber.

Compared with a humidifier in the traditional scheme, the humidifier provided by the embodiment of the invention can drive the atomization device to atomize by taking the gas exhaled by the patient as power to humidify the first gas in the atomization cavity, the purpose of humidifying the first gas can be realized without heating the liquid in the humidifier, and the temperature of the humidified first gas can be controlled by controlling the temperature of the liquid injected into the liquid storage cavity. Therefore, the humidifier provided by the embodiment of the invention can effectively control the humidity and the temperature of the gas in the humidifier. In addition, can also be through patient's respiratory frequency control atomizing device's atomization frequency, first gas after the humidifying can get into the patient in the very first time internal, can promote the utilization ratio of first gas after the humidifying, moreover, need not to atomize when the patient breathes in, can reduce the operating frequency of humidifier to promote the life of humidifier, still save the energy consumption of humidifier.

Drawings

FIG. 1 is a schematic structural diagram of a humidifier according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a humidification process of a humidifier according to an embodiment of the present invention;

FIG. 3 is a schematic view of humidified gases exiting a humidifier in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of another humidifier according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an atomizing device according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a humidifier according to an embodiment of the invention;

fig. 7 is a schematic structural diagram of a ventilation treatment device according to an embodiment of the invention.

Description of reference numerals:

10-a humidifier, 11-an air inlet, 12-an air passage, 121-a first one-way valve, 122-a second one-way valve, 123-a first air passage, 124-a second air passage, 13-an atomization cavity, 14-a driving cavity, 141-a partition, 15-a liquid storage cavity, 16-an atomization device, 161-a flow guide seam, 1611-a bulge structure, 162-an orifice, 1621-a first liquid inlet, 17-a flow guide pipe, 171-a second liquid inlet, 18-a pressurization valve, 20-a main machine, 21-an air outlet, 30-a breathing mask, a-a first flow path, b-a second flow path, c-a third flow path, x-a first direction and y-a second direction.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Further, "inner and outer" refer to inner and outer relative to the contour of each member itself.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 3, an embodiment of the present invention provides a humidifier 10, including an air inlet 11, an air passage 12, an atomizing chamber 13, a driving chamber 14, a liquid storage chamber 15, and an atomizing device 16;

the air inlet 11 is communicated with the atomizing cavity 13, the air passage 12 penetrates through the side wall of the humidifier 10, the air passage 12 comprises a first one-way valve 121 and a second one-way valve 122, the first one-way valve 121 is arranged on a first flow path a of the first gas in the atomizing cavity 13 flowing out of the atomizing cavity 13, and the second one-way valve 122 is arranged on a second flow path b of the second gas outside the humidifier 10 flowing into the driving cavity 14;

atomizing chamber 13 drive chamber 14 and stock solution chamber 15 mutual isolation, drive chamber 14 with be provided with spacer 141 between the stock solution chamber 15, atomizing device 16 with stock solution chamber 15 intercommunication, just atomizing device 16's play fog mouth is located in atomizing chamber 13 the second is gaseous to be followed during second flow path b flows, second check valve 122 is opened, and first check valve 121 closes, spacer 141 compresses stock solution chamber 15, liquid in the stock solution chamber 15 gets into atomizing device 16.

Specifically, as shown in fig. 1, the humidifier 10 includes an air inlet 11, an air passage 12, an atomizing chamber 13, a driving chamber 14, a reservoir chamber 15, and an atomizing device 16. Wherein, gas inlet 11 communicates with atomizing chamber 13, and gas can enter atomizing chamber 13 through gas inlet 11 inside. The lateral wall of humidifier 10 is worn to establish by air flue 12, and air flue 12 can be connected with the face guard of patient's end, is provided with first check valve 121 and second check valve 122 in the air flue, and wherein, first check valve 121 and second check valve 122 can be one-way diaphragm valve, and the diaphragm can be the diaphragm that has certain hardness of silica gel material. The first check valve 121 is disposed on the first flow path a of the first gas in the nebulization chamber 13 flowing out of the nebulization chamber 13, as shown in fig. 1 and 3, and the second check valve 122 is disposed on the second flow path b of the second gas outside the humidifier 10 flowing into the drive chamber 14, as shown in fig. 1 and 2.

As shown in fig. 1, the atomizing chamber 13, the driving chamber 14 and the liquid storage chamber 15 are isolated from each other, an isolating member 141 is provided between the driving chamber 14 and the liquid storage chamber 15, the atomizing device 16 is communicated with the liquid storage chamber 15, and a mist outlet of the atomizing device 16 is located in the atomizing chamber 13, so that the tiny liquid droplets ejected from the mist outlet of the atomizing device 16 can enter the atomizing chamber 13. As shown in fig. 2, when the patient exhales, the second gas exhaled by the patient flows along the second flow path b, the second check valve 122 is opened, the first check valve 121 is closed, the second gas can enter the driving chamber 14, the partition member 141 is moved in the first direction x under the pressure of the second gas to compress the reservoir 15, and the liquid in the reservoir 15 is pressed to flow along the third flow path c, so that the liquid in the reservoir 15 can be introduced into the atomization device 16. The atomizing device 16 makes the atomized liquid enter the atomizing chamber 13, and can humidify the first gas in the atomizing chamber 13.

As shown in fig. 3, when the patient inhales, the air pressure of the side of the first one-way valve 121 close to the nebulization cavity 13 is greater than the air pressure of the side of the first one-way valve 121 far away from the nebulization cavity 13, and the first one-way valve 121 opens, so that the humidified first gas in the nebulization cavity 13 can flow into the patient from the nebulization cavity 13 along the first flow path a. The liquid storage cavity 15 may contain gas and liquid, when the patient inhales, the first one-way valve 121 is opened, the second one-way valve 122 is closed, and no gas enters the driving cavity 14, so that the gas pressure at one side of the isolating piece 141 close to the driving cavity 14 is lower than that at one side close to the liquid storage cavity 15, and therefore, the isolating piece 141 moves along the second direction y under the action of the gas pressure difference, so that the gas pressures at two sides of the isolating piece 141 are balanced.

Compared with a humidifier in the traditional scheme, the humidifier provided by the embodiment of the invention can drive the atomization device to atomize by taking the gas exhaled by the patient as power, so as to humidify the first gas in the atomization cavity, the purpose of humidifying the first gas can be realized without heating the liquid in the humidifier, and the temperature of the humidified first gas can be controlled by controlling the temperature of the liquid injected into the liquid storage cavity. Therefore, the humidifier provided by the embodiment of the invention can effectively control the humidity and the temperature of the gas in the humidifier. In addition, can also control atomizing device's atomization frequency through patient's respiratory frequency, first gas behind the humidifying can get into the patient in the very first time internal, can promote the utilization ratio of first gas behind the humidifying, moreover, need not to atomize when the patient breathes in, can reduce the operating frequency of humidifier to promote the life of humidifier, still save the energy consumption of humidifier.

Optionally, referring to fig. 1 to 4, the air passage 12 includes a first air passage 123 and a second air passage 124, wherein the first air passage 123 penetrates through a side wall of the nebulizing chamber 13, and the second air passage 124 communicates with the driving chamber 14;

the first check valve 121 is arranged on the first air passage 123, and when the first check valve 121 is opened, the first gas flows out of the atomizing chamber 13 through the first air passage 123;

the second check valve 122 is disposed on the second air passage 124, and when the second check valve 122 is opened, the second air flows into the driving chamber 14.

Specifically, the air passage 12 includes a first air passage 123 and a second air passage 124, the first air passage 123 and the second air passage 124 may be communicated air passages as shown in fig. 1, and the first air passage 123 and the second air passage 124 may also be independent air passages as shown in fig. 4. Wherein, first air flue 123 wears to establish the lateral wall in atomizing chamber 13, and first check valve 121 sets up on first air flue 123, and when first check valve 121 opened, first gas flowed out atomizing chamber 13 through first air flue 123, as shown in fig. 3. The second air passage 124 is communicated with the driving cavity 14, the second check valve 122 is arranged on the second air passage 124, and when the second check valve 122 is opened, the second air flows into the driving cavity 14 through the first air passage 123 and the second air passage 124 as shown in fig. 2; as shown in fig. 4, when second check valve 122 opens, secondary gas flows into drive chamber 14 through secondary gas passage 124. By arranging the first air passage 123 and the second air passage 124, humidified first air can flow out of the atomizing cavity 13 through the first air passage 123 and flow into the patient end when the patient inhales; the flow of the second gas exhaled by the patient into the drive chamber 14 and the atomization of the liquid in the reservoir chamber 15 to humidify the first gas can also be achieved when the patient exhales. Therefore, the purposes of improving the utilization rate of the first gas and saving the energy consumption of the humidifier can be achieved. Of course, those skilled in the art can set the structure and the position relationship of the first air duct 123 and the second air duct 124 according to actual requirements, which is not limited in the embodiment of the present invention.

Alternatively, referring to fig. 1 to 3, the second air passage 124 is located inside the humidifier 10, and the second air passage 124 is communicated with the first air passage 123;

when the second check valve 122 is opened, the second gas flows into the driving chamber 14 through the first gas passage 123 and the second gas passage 124.

Specifically, as shown in fig. 1, the second air passage 124 is located inside the humidifier 10, and the second air passage 124 communicates with the first air passage 123. As shown in FIG. 2, when second check valve 122 is opened, the second gas flows into drive chamber 14 through first gas passage 123 and second gas passage 124. Because the second air flue 124 is located the inside of humidifier 10, the second gas gets into second air flue 124 through first air flue 123, can avoid the second gas to remain in first air flue 123 to make as much as possible the second gas get into drive chamber 14 through second air flue 124 in, can promote the utilization ratio of second gas, can promote the drive power of drive chamber 14, with the humidification effect that promotes humidifier 10. In addition, the external structure of the humidifier 10 can be simplified, and the appearance of the humidifier 10 can be beautified.

Optionally, referring to fig. 4, the second air passage 124 penetrates through the sidewall of the driving chamber 14;

when the second check valve 122 is opened, the second gas flows into the drive chamber 14 through the second gas passage 124.

Specifically, as shown in fig. 4, a first air passage 123 penetrates through a side wall of the atomizing chamber 13, a second air passage 124 penetrates through a side wall of the driving chamber 14, a first check valve 121 is disposed on the first air passage 123, and a second check valve 122 is disposed on the second air passage 124. When the patient exhales, the secondary gas may directly enter the drive chamber 14 through the secondary airway 124, which may shorten the path of the secondary gas into the drive chamber 14 to shorten the time that the secondary gas enters the drive chamber 14. Thus, the time consumed by the whole humidification process of the humidifier 10 can be shortened.

Optionally, referring to fig. 2, the partition 141 includes a piston, and when the second one-way valve 122 is opened, the second gas drives the piston to move to compress the fluid storage chamber 15; or the like, or, alternatively,

the partition 141 includes a bladder that is inflated by the second gas when the second one-way valve 122 is opened to compress the reservoir 15.

Specifically, as shown in fig. 2, the spacer 141 may be a piston. The piston setting is between drive chamber 14 and stock solution chamber 15, can slide along the lateral wall of humidifier 10, and when second check valve 122 opened, the gaseous drive piston motion of second to compress stock solution chamber 15, stock solution chamber 15 is when receiving the compression, and the liquid in the stock solution chamber 15 can be by leading-in atomizing device 16, and the liquid after the atomizing gets into in the atomizing chamber 13, thereby can play the gas effect in the humidifying atomizing chamber 13.

Of course, the partition 141 may be an air bag, and the second gas enters the air bag when the second check valve 122 is opened. The balloon is elastically deformable so that it can be inflated by the second gas. The liquid storage cavity 15 can be compressed in the process of air bag expansion, so that the liquid in the liquid storage cavity 15 can be compressed into the atomizing device 16, and the purpose of humidifying gas is achieved. It will be seen that the partition 141 both separates the drive chamber 14 from the reservoir chamber 15 and is movable by a pressure differential to allow dynamic equilibrium of air pressure between the drive chamber 14 and the reservoir chamber 15. The isolating piece 141 in the embodiment of the invention has a simple structure, can convert the air pressure difference into mechanical energy to realize the humidifying effect of the humidifier 10, and can play a role in saving energy consumption.

Optionally, referring to fig. 1, the humidifier 10 further comprises a draft tube 17;

one end of the flow guide pipe 17 is positioned in the liquid storage cavity 15, and the other end of the flow guide pipe 17 is communicated with the atomization device 16.

Specifically, as shown in fig. 1, the humidifier 10 further includes a flow guide tube 17, one end of the flow guide tube 17 is located in the liquid storage chamber 15, and the other end of the flow guide tube 17 is communicated with the atomization device 16. When stock solution chamber 15 is compressed, the liquid in stock solution chamber 15 can get into honeycomb duct 17 to along honeycomb duct 17 flow to atomizing device 16 in, atomizing device 16 is passed through to liquid, can realize the atomization effect, thereby can carry out the humidification to the first gas in the atomizing chamber 13. The draft tube 17 has a simple structure, is convenient to assemble, and is favorable for saving the production cost of the humidifier 10.

Alternatively, referring to fig. 2 and 5, the atomization device 16 includes a guide slit 161 and an orifice 162;

the flow guide tube 17 is communicated with the flow guide slit 161, the flow guide slit 161 is communicated with the jet hole 162, wherein the diameter of the flow guide slit 161 is smaller than that of the flow guide tube 17, and the diameter of the jet hole 162 is smaller than that of the flow guide slit 161.

Specifically, as shown in fig. 5, the atomization device 16 includes a flow guide slit 161 and an injection hole 162, the flow guide pipe 17 is communicated with the flow guide slit 161, and the flow guide slit 161 may be communicated with the injection hole 162. The liquid in the liquid storage chamber 15 enters the flow guide slit 161 through the flow guide tube 17 and then passes through the spray holes 162, and the liquid is atomized into micro liquid drops to enter the atomization chamber 13. The micro liquid drops are mixed with the first gas in the atomizing chamber 13, so that the humidity of the first gas can be increased, and the function of humidifying the first gas is achieved.

Wherein, the diameter of the flow guide slit 161 is smaller than that of the flow guide pipe 17, and the diameter of the jet hole 162 is smaller than that of the flow guide slit 161. According to the Bernoulli effect principle, when the fluid speed is increased in the same fluid, the pressure on the contact interface of the object and the fluid is reduced, and conversely, the pressure is increased. It can be seen that there is a negative correlation between the flow rate of the fluid and the pressure, namely: the greater the flow rate of the fluid, the lower the pressure; the smaller the flow rate of the fluid, the greater the pressure.

Specifically, in the embodiment of the present invention, as shown in fig. 2, when the liquid storage chamber 15 is compressed and the liquid flows upward along the third flow path c, the flow velocity of the air flowing out along the third flow path c in the flow guide tube 17 and the atomizing device 16 increases due to the diameters of the flow guide tube 17, the flow guide slit 161, and the spray hole being sequentially decreased. Therefore, the air flow velocity at the nozzle 162 is high and the pressure is low, while the air flow velocity at the upper surface of the liquid is low and the pressure is high, since the fluid flows from the position with high pressure to the position with low pressure, the liquid can be further driven to flow upwards along the third flow path c, the liquid can collide with the flow guide slit 161 and the nozzle 162 at high speed to form tiny liquid, and can also impact with the air flow when being ejected from the nozzle 162 at high speed to be atomized into tiny liquid drops. As shown in fig. 5, the flow guiding slit 161 may be a flow guiding slit 161 with a plurality of bent sections, which may improve the collision effect of the liquid with the side wall of the flow guiding slit 161 to improve the atomization effect of the atomization device 16.

It can be seen that the diameter of the orifice 162 has a significant effect on the atomization effect of the atomization device 16. The smaller the diameter of the nozzle hole 162, the better the atomization effect of the atomization device 16. In practical applications, the diameter of the nozzle 162 may be selected to be between 0.5mm and 3mm, and preferably, the diameter of the nozzle 162 is 1.2mm. The diameter of the nozzle hole 162 may be set by a person skilled in the art according to practical situations, and is not limited in the embodiment of the present invention.

Optionally, referring to fig. 5, the nozzle hole 162 includes a first inlet port 1621, and the diversion slit 161 is communicated with the first inlet port 1621;

the side wall of the diversion slit 161 is provided with a protruding structure 1611, and the protruding structure 1611 is opposite to the first liquid inlet 1621.

Specifically, as shown in fig. 5, the nozzle hole 162 includes a first inlet 1621, and the guide slit 161 is communicated with the first inlet 1621, so that the liquid in the guide slit 161 may flow into the nozzle hole 162 through the first inlet 1621. The side wall of the flow guide slit 161 is provided with a convex structure 1611, the convex structure 1611 is opposite to the first liquid inlet 1621, the arrangement of the convex structure can improve the collision effect of the high-speed liquid with the flow guide slit 161, and the high-speed liquid can be collected to the first liquid inlet 1621, so that the impacted high-speed liquid directly enters the nozzle hole 162 to generate secondary collision. Thereby, the liquid can be made to impact into smaller droplets to enhance the atomization effect of the atomization device 16. Moreover, the smaller the liquid drop, the easier the liquid drop is suspended in the first gas in the atomizing cavity 13, and the easier the first gas enters into the patient, so that the humidifying effect of the humidifier can be improved.

Optionally, with reference to fig. 1, the flow duct 17 comprises a second liquid inlet 171;

the bottom surface of the reservoir chamber 15 is an inverted conical surface, and the second liquid inlet 171 is opposite to the vertex of the conical surface.

Specifically, as shown in fig. 1, the bottom surface of the reservoir 15 is an inverted conical surface, and the liquid can be collected around the apex of the conical surface. Honeycomb duct 17 includes second inlet 171, and second inlet 171 is relative with the summit of conical surface, when stock solution chamber 15 is compressed, can be so that second inlet 171 is arranged in liquid all the time, can avoid unable compressed to honeycomb duct 17 when liquid is less in to avoid producing the condition that the humidifying is not enough.

Optionally, referring to fig. 6, the humidifier 10 further comprises a boost valve 18;

the booster valve 18 is disposed at the end of the air passage 12 that communicates with the drive chamber 14.

Specifically, as shown in fig. 6, the humidifier 10 further comprises a pressure increasing valve 18, and the pressure increasing valve 18 is arranged at the end of the air passage communicating with the driving chamber 14. When second check valve 122 opens, the second is gaseous to flow in the in-process of drive chamber 14 through the air flue, booster valve 18 can increase the atmospheric pressure that gets into the second of drive chamber 14, can make separator 141 receive bigger pressure and compress stock solution chamber 15, the liquid in stock solution chamber 15 also can receive the effect of bigger pressure, can increase the velocity of flow of liquid in atomizing device 16, can increase atomizing device 16's atomization effect, thereby can increase humidifier 10's humidifying effect.

The embodiment of the present invention further provides a ventilation treatment device, referring to fig. 7, the ventilation treatment device includes a main machine 20 and the humidifier 10, where the main machine 20 includes an air outlet 21;

the air outlet 21 is connected with the air inlet 11 of the humidifier 10, and the air generated by the host 20 enters the atomizing cavity 13 of the humidifier 10 through the air outlet 21 and the air inlet 11.

Specifically, as shown in fig. 7, the ventilation therapy device includes a main machine 20 and a humidifier 10, the main machine 20 includes an air outlet 21, and the main machine 20 is used as a power source of the ventilation therapy device and can generate air with a certain pressure. The gas outlet 21 and the gas inlet 11 can be connected through a pipeline, the gas can enter the atomizing cavity 13 of the humidifier 10 through the gas outlet 21 and the gas inlet 11, after the liquid in the liquid storage cavity 15 is atomized by the atomizing device 16 in the humidifier 10, tiny liquid drops can be mixed with the gas in the atomizing cavity 13, the humidity of the gas can be improved, and the effect of humidifying the gas is achieved. Generally, the airway 12 of the humidifier 10 may be connected to the mask 30 via a pipeline, and the patient may inhale humidified gas in the humidifier 10 by wearing the mask 30, so as to assist the patient in breathing by means of manual gas delivery. Of course, the exhaled air from the patient can enter the driving chamber 14 of the humidifier 10 through the airway, thereby driving the atomizer 16 to atomize the liquid in the liquid storage chamber 15.

In the embodiment of the invention, the humidifier can control the atomization frequency of the atomization device according to the respiratory frequency of the patient, and when the respiratory frequencies of different patients are different, the atomization frequency of the atomization device can be changed in real time, so that the atomization frequency of the atomization device is synchronous with the respiratory frequency of the patient. The humidity and the temperature of the gas in the humidifier are easy to control, the utilization rate of the humidified gas can be improved, the working time of the atomizing device can be reduced, and the service life of the atomizing device is prolonged. The ventilation treatment equipment provided by the embodiment of the invention has the advantages of good applicability and good clinical effect, and can effectively improve the use experience of patients.

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, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should also be considered as disclosed in the present invention, and all such modifications and combinations are intended to be included within the scope of the present invention.

Claims

1. A humidifier is characterized by comprising an air inlet, an air passage, an atomization cavity, a driving cavity, a liquid storage cavity and an atomization device;

the atomization cavity, the driving cavity and the liquid storage cavity are isolated from each other, an isolating piece is arranged between the driving cavity and the liquid storage cavity, the atomization device is communicated with the liquid storage cavity, a mist outlet of the atomization device is positioned in the atomization cavity, when the second gas flows along the second flow path, the second check valve is opened, the first check valve is closed, the isolating piece compresses the liquid storage cavity, and liquid in the liquid storage cavity enters the atomization device;

the second gas is exhaled by the patient.

2. The humidifier according to claim 1, wherein the air passage comprises a first air passage and a second air passage, wherein the first air passage penetrates through a side wall of the atomizing chamber, and the second air passage is communicated with the driving chamber;

the second one-way valve is arranged on the second air channel, and when the second one-way valve is opened, the second air flows into the driving cavity.

3. The humidifier according to claim 2, wherein the second air passage is located inside the humidifier, and the second air passage is communicated with the first air passage;

when the second check valve is opened, the second gas flows into the driving cavity through the first gas passage and the second gas passage.

4. The humidifier according to claim 2, wherein the second air passage is formed through a side wall of the driving chamber;

5. The humidifier according to claim 1,

the isolating piece comprises a piston, and when the second one-way valve is opened, the second gas drives the piston to move and compress the liquid storage cavity; or the like, or, alternatively,

the barrier includes a bladder, and the second gas expands the bladder to compress the reservoir when the second one-way valve is open.

6. The humidifier according to claim 1, further comprising a flow guide tube;

7. The humidifier according to claim 6, wherein the atomization device comprises a flow guide slit and an orifice;

8. The humidifier according to claim 7, wherein the nozzle hole comprises a first liquid inlet, and the flow guide slit is communicated with the first liquid inlet;

9. The humidifier according to claim 6, wherein the flow conduit comprises a second liquid inlet;

10. The humidifier according to claim 1, further comprising a pressurization valve;

11. A ventilation therapy device comprising a host and a humidifier as claimed in any one of claims 1 to 10, said host comprising an outlet;