CN217448639U

CN217448639U - Ventilation device

Info

Publication number: CN217448639U
Application number: CN202122963382.6U
Authority: CN
Inventors: 郑欣; 姚刚; 邬学涛
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-09-20
Anticipated expiration: 2031-11-26

Abstract

The utility model provides a ventilation unit, it includes the turbine subassembly, gas circuit mechanism, oxygen concentration sensor and water retaining member, the turbine subassembly is used for driving gas to flow, gas circuit mechanism includes air inlet joint, give vent to anger and connect and the gas circuit subassembly, air inlet joint is connected with the turbine subassembly, it is used for being connected with humidification device to give vent to anger to connect the gas to be used for humidifying from giving vent to anger, the gas circuit subassembly includes first gas circuit section and second gas circuit section, first gas circuit section includes relative first end and second end, second gas circuit section includes relative third end and fourth end, first end and the articulate of giving vent to anger, the second end is connected with the third end, fourth end and air inlet joint are connected, wherein, the second gas circuit section upwards extends for first gas circuit section, second gas circuit section is equipped with the sampling hole. The oxygen concentration sensor is installed in the second gas circuit section lateral wall and communicates with the sampling hole, and the inside wall of third end is located to the water blocking piece, and the water blocking piece is used for blockking the comdenstion water entering sampling hole of first gas circuit section.

Description

Ventilation device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an air breather.

Background

Existing ventilators typically include a humidification device for warming and humidifying the air exiting the blower assembly, such as a turbine, for delivery to the patient, to increase the patient's comfort of inhalation. The noninvasive ventilation device is generally connected through a single tube, namely, the noninvasive ventilation device breathes in and exhales a shared pipeline, when a patient exhales, gas after being heated and humidified by the humidification device can be partially reversely fed into the pipeline between the humidification device and the fan assembly, and the partial gas can form condensed water after contacting with the inner wall of the low-temperature pipeline, if the condensed water is accumulated in the pipeline, a sensor arranged on the pipeline can be caused, for example, the flow sensor and the oxygen concentration sensor fail, so that the ventilation device can not work normally.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an air breather.

The utility model provides an air breather, include:

a gas driven turbine assembly for driving a flow of gas;

the air path mechanism comprises an air inlet joint, an air outlet joint and an air path component, the air inlet joint is connected with the gas driven turbine component, the air outlet joint is used for being connected with a humidifying device, the humidifying device is used for humidifying the air exhausted from the air outlet joint, the air path component is connected between the air inlet connector and the air outlet connector and comprises a first air path section and a second air path section, the first gas circuit section includes first and second opposing ends, the second gas circuit section includes third and fourth opposing ends, the first end is connected with the air outlet joint, the second end is connected with the third end, the fourth end is connected with the air inlet joint, the second air path section extends upwards relative to the first air path section, and is provided with a sampling hole, wherein the humidifying device is used for humidifying the gas exhausted from the gas outlet joint;

the oxygen concentration sensor is mounted on the outer side wall of the second gas path section and communicated with the sampling hole;

and the water blocking part is arranged on the inner side wall of the third end and is used for blocking condensed water of the first air path section from entering the sampling hole.

According to the technical scheme, the utility model provides an air breather sets up the manger plate piece through the inside wall at the third end, and the manger plate piece blocks the comdenstion water entering sampling hole in first gas section, so, the comdenstion water entering sampling hole in first gas section can avoid appearing leads to oxygen concentration sensor to become invalid for the unable normal condition of working of air breather.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic connection diagram of a turbine assembly, a gas path mechanism and a humidification device according to an embodiment of the present invention;

fig. 2 is a schematic connection diagram of a gas circuit mechanism and an oxygen concentration sensor according to an embodiment of the present invention;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of an oxygen concentration sensor according to an embodiment of the present invention;

fig. 5 is a schematic connection diagram of a turbine assembly, a gas path mechanism and an oxygen inlet assembly according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims is intended to mean, and includes such items, any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, an embodiment of the present invention provides a ventilator, the ventilator includes a turbine assembly 10, a gas path mechanism 20, an oxygen concentration sensor 30 and a water blocking member 40, the turbine assembly 10 is used for driving gas to flow, the gas path mechanism 20 includes a gas inlet joint 21, a gas outlet joint 22 and a gas path assembly 23, the gas inlet joint 21 is connected to the turbine assembly 10, the gas outlet joint 22 is used for being connected to a humidifying device 200, the humidifying device 200 is used for humidifying gas discharged from the gas outlet joint 22, the gas path assembly 23 includes a first gas path section 231 and a second gas path section 232, the first gas path section 231 includes a first end 231a and a second end 231b which are opposite to each other, the second gas path section 232 includes a and a fourth end 232b which are opposite to each other, the first end 231a is connected to the gas outlet joint 22, the second end 231b is connected to the third end 232a, the fourth end 232b is connected to the gas inlet joint 21, the second air path segment 232 extends upward relative to the first air path segment 231, and the second air path segment 232 is provided with a sampling hole 2321. The oxygen concentration sensor 30 is installed on the outer side wall of the second gas path segment 232 and is communicated with the sampling hole 2321, the water blocking member 40 is installed on the inner side wall of the third end 232a, and the water blocking member 40 is used for blocking condensed water of the first gas path segment 231 from entering the sampling hole 2321.

The second air path section 232 may extend upward relative to the first air path section 231, and the second air path section 232 may extend along the vertical direction, or the second air path section 232 may extend obliquely at an included angle with the vertical direction. It should be noted that the upward direction is relative to the orientation of the vent in normal use.

The humidifying device 200 may be integrated with the turbine assembly 10 in a housing, or may be designed separately from the turbine assembly 10.

In practical use, the turbine assembly 10 drives the gas to enter the humidifying device 200 from the gas inlet joint 21 to the gas path assembly 23 and then from the gas outlet joint 22, the humidifying device 200 humidifies the gas and then flows to the patient, when part of the air humidified by the humidifying device 200 flows back to the air path assembly 23, the air is condensed on the inner side wall of the air path assembly 23 to form condensed water, since the second air path section 232 extends upward relative to the first air path section 231, the condensed water is collected at the first air path section 231, and the air vent device provided by the embodiment of the present invention, by providing the water blocking member 40 at the inner sidewall of the third end 232a, the water blocking member 40 blocks the condensed water of the first gas path segment 231 from entering the sampling hole 2321, and thus, the situation that condensed water in the first air path segment 231 enters the sampling hole 2321 to cause the oxygen concentration sensor 30 to fail, so that the ventilator cannot work normally can be avoided.

The water blocking member 40 and the second air path section 232 may be integrally formed, or the water blocking member 40 may be formed on the inner sidewall of the third end 232a by mechanical connection, adhesion, or ultrasonic welding.

As shown in fig. 3, in some embodiments, the water blocking member 40 includes a first extension 41 and a second extension 42, the first extension 41 is connected to an inner sidewall of the third end 232a, and the second extension 42 is connected to the first extension 41 and extends upward to form a blocking wall. In this embodiment, the second extension portion 42 can form a high waterproof rim, which can form a good waterproof effect on the oxygen concentration sensor 30. Optionally, the second extending portion 42 covers the lower half portion of the sampling hole 2321, and in this embodiment, the sampling effect is not affected, and a good waterproof effect can be achieved. It should be noted that the upward direction is relative to the orientation of the vent in normal use.

In some embodiments, the inner sidewall of the third end 232a of the second extension portion 42 is spaced apart, and the first extension portion 41 extends downward toward the first air path section 231. In this embodiment, when the condensed water occurs on the first extending portion 41, the condensed water on the first extending portion 41 may flow to the first gas path segment 231, so as to avoid the condensed water on the first extending portion 41 entering the sampling hole 2321 and damaging the oxygen concentration sensor 30.

In some embodiments, the sampling apertures 2321 extend obliquely downward toward the first gas segment 231. In this embodiment, the obliquely extending sampling hole 2321 may provide a certain blocking effect for the condensed water, and thus may function to prevent the condensed water from entering the oxygen concentration sensor 30 through the sampling hole 2321. Of course, the sampling apertures 2321 may also be horizontally disposed. It should be noted that the downward direction is relative to the orientation of the vent in normal use.

As shown in fig. 4, in some embodiments, the oxygen concentration sensor 30 includes a head portion 31 and a tail portion 32 opposite to the head portion 31, the head portion 31 of the oxygen concentration sensor 30 is provided with an air intake hole 311 communicating with the sampling hole 2321, wherein the head portion 31 of the oxygen concentration sensor 30 is inclined downward with respect to the tail portion 32 of the oxygen concentration sensor 30. In this embodiment, the air inlet holes 311 extending obliquely can provide a certain blocking effect for the condensed water, so that the condensed water can be prevented from entering the oxygen concentration sensor 30 through the air inlet holes 311. Of course, the oxygen concentration sensor 30 may be disposed horizontally. It should be noted that the downward direction is relative to the orientation of the vent in normal use.

As shown in fig. 1 and 2, in some embodiments, the vent further includes a flow sensor 50, the flow sensor 50 being mounted on the top or side of the first gas path segment 231. With this embodiment, it is possible to prevent the condensed water inside the first gas path section 231 from soaking into the flow sensor 50, resulting in a failure of the flow sensor 50.

In some embodiments, the first gas path segment 231 is at least partially angled upward relative to the outlet fitting 22. The tilt exceeds the tilt caused by normal assembly errors. It should be noted that the upward direction is relative to the orientation of the vent in normal use.

In the practical use process, gas when humidifying through humidifying device 200 flows back to gas circuit subassembly 23 can form the comdenstion water at the inside wall condensation of gas circuit subassembly 23, because first gas path section 231 is for giving vent to anger at least partial tilt up of joint 22, the comdenstion water of formation can flow to giving vent to anger joint 22 along the slope part, the air current that the fan subassembly operation produced gets into gas circuit subassembly 23 and can sweep the comdenstion water of long-pending staying in giving vent to anger joint 22 department into humidifying device 200 to make gas circuit subassembly 23 inside can not have the comdenstion water ponding.

In some embodiments, the portion of the first gas path segment 231 between the outlet fitting 22 and the flow sensor 50 is angled upward relative to the outlet fitting 22. With this embodiment, the condensed water in the portion of the first air path section 231 between the air outlet joint 22 and the flow sensor 50 can be drained, and the condensed water accumulated in the position of the first air path section 231 opposite to the flow sensor 50 can be avoided, so that the flow sensor 50 can be prevented from being damaged by the condensed water accumulated. It should be noted that the upward direction is relative to the orientation of the vent in normal use.

In some embodiments, the first gas path segment 231 is inclined upward with respect to the gas outlet junction 22. That is, the entire first gas flow path section 231 is inclined upward with respect to the gas outlet connection 22. In this embodiment, the condensed water inside the first gas path segment 231 can be completely discharged to the air outlet joint 22, so that a better guiding effect can be achieved for the condensed water. It should be noted that the upward direction is relative to the orientation of the vent in normal use.

In some embodiments, the outlet fitting 22 is horizontally disposed. With this embodiment, the arrangement of the pipes of the rear humidifying device 200 is facilitated and the appearance of the ventilating device is neat and beautiful. Of course, the air outlet joint 22 may not be disposed horizontally, for example, in some other embodiments, the air outlet joint 22 is inclined downward away from the first air path segment 231, and in this embodiment, the condensed water may be further guided out of the air path assembly 23. It should be noted that the downward direction is relative to the orientation of the vent in normal use.

In some embodiments, the first gas leg segment 231 is angled with respect to the horizontal at an angle α, wherein 0.5 ≦ α ≦ 90. Preferably, the first gas path segment 231 is angled from 0.5 to 60 relative to horizontal. Further, the first gas path segment 231 is angled at 0.5 ° to 15 ° relative to the horizontal. Further, the angle of the first gas path segment 231 relative to the horizontal plane is 0.5 ° to 5 °, further, the angle of the first gas path segment 231 relative to the horizontal plane is 0.5 °, 1 °, 2 °, 3 °, 4 °, 5 °, or the angle of the first gas path segment 231 relative to the horizontal plane may be any value within the range of values defined by the two values. In this embodiment, not only the condensed water can be discharged, but also the air outlet joint 22 can be installed as horizontally as possible. The horizontal plane refers to a horizontal plane of the ventilation device in a normal use state.

As shown in fig. 5, in some embodiments, the ventilation device further includes an oxygen inlet assembly 60, the bottom of the turbine assembly 10 is provided with an oxygen inlet 11, the oxygen inlet assembly 60 is disposed at the bottom of the turbine assembly 10 and is communicated with the oxygen inlet 11, and the air path mechanism 20 is disposed at the bottom of the turbine assembly 10. The turbine assembly 10 includes a first side 10a and a second side 10b opposite the first side 10a, the inlet fitting 21, the oxygen inlet assembly 60 and the oxygen concentration sensor 30 are proximate the first side 10a of the turbine assembly 10, and the oxygen inlet 11 and the outlet fitting 22 are proximate the second side 10b of the turbine assembly 10. With this embodiment, the oxygen inlet assembly 60 and the air channel mechanism 20 are both disposed at the bottom of the turbine assembly 10, that is, disposed in a double layer, so that the lateral occupied space of the turbine assembly 10, the oxygen inlet assembly 60 and the air channel mechanism 20 can be reduced, which is beneficial to the appearance design of the product. In addition, through setting up the first side 10a that air inlet joint 21, oxygen entry subassembly 60 and oxygen concentration sensor 30 are close to turbine assembly 10, oxygen entry 11 and the second side 10b that the joint 22 is close to turbine assembly 10 of giving vent to anger, so, oxygen supply equipment and humidifying device are located turbine assembly 10's relative both sides, and oxygen supply equipment can not form the influence to the humidifying device, is favorable to the overall arrangement of various equipment for the structure of device is more compact, and the volume is littleer.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An airway device, comprising:

a turbine assembly for driving a flow of gas;

the gas path mechanism comprises a gas inlet joint, a gas outlet joint and a gas path component, the gas inlet joint is connected with the turbine component, the gas outlet joint is used for being connected with a humidifying device, the humidifying device is used for humidifying gas exhausted from the gas outlet joint, the gas path component comprises a first gas path section and a second gas path section, the first gas path section comprises a first end and a second end which are opposite, the second gas path section comprises a third end and a fourth end which are opposite, the first end is connected with the gas outlet joint, the second end is connected with the third end, the fourth end is connected with the gas inlet joint, the second gas path section extends upwards relative to the first gas path section, and the second gas path section is provided with a sampling hole;

the oxygen concentration sensor is arranged on the outer side wall of the second gas path section and is communicated with the sampling hole;

2. The aerator of claim 1, wherein said water stop includes a first extension connected to an inner sidewall of said third end and a second extension connected to said first extension and extending upwardly to form a wall.

3. The vent apparatus of claim 2, wherein the second extension is spaced apart from an inner sidewall of the third end, and the first extension extends downwardly toward the first gas path segment.

4. The vent apparatus of claim 1, wherein said sampling aperture extends downwardly sloping toward said first gas path segment.

5. The aerator of claim 4, wherein said oxygen concentration sensor comprises a head portion and a tail portion opposite said head portion, said head portion of said oxygen concentration sensor being provided with an air inlet hole communicating with said sampling hole, wherein said head portion of said oxygen concentration sensor is inclined downward with respect to said tail portion of said oxygen concentration sensor.

6. The vent apparatus of claim 1, further comprising a flow sensor mounted to a top or side of the first gas path segment.

7. An aeration device according to any one of claims 1 to 6 wherein the first gas path section is at least partially upwardly inclined relative to the outlet connection.

8. The aeration device of claim 6, wherein a portion of the first gas path segment between the outlet fitting and the flow sensor is angled upward relative to the outlet fitting; or,

the first gas path section is inclined upward relative to the gas outlet joint.

9. The vent apparatus of claim 7, wherein said outlet fitting is horizontally disposed or angled downwardly away from said first gas path segment.

10. An aeration device according to claim 7 wherein the first gas path section is at an angle α relative to the horizontal, wherein 0.5 ° α ° 90 °.

11. The aerator of claim 1, further comprising an oxygen inlet assembly, wherein an oxygen inlet is formed in the bottom of said turbine assembly, said oxygen inlet assembly is formed in the bottom of said turbine assembly and is in communication with said oxygen inlet, and said gas circuit mechanism is formed in the bottom of said turbine assembly;

the turbine assembly includes a first side and a second side opposite the first side, the inlet fitting, the oxygen inlet fitting and the oxygen concentration sensor are proximate the first side of the turbine assembly, and the oxygen inlet and the outlet fitting are proximate the second side of the turbine assembly.