Breathing valve

Abstract

This utility model discloses a breathing valve, comprising: a housing having a first port and a second port for attachment to a trachea, and a gas conduit formed by the outer wall of the housing and located between the first port and the second port, wherein oxygen flows from the first port to the second port, and exhaled gas from the patient enters the gas conduit from the first port; an annular step disposed in the gas conduit, the annular step having a stepped surface facing the first port; a movable component located in the gas conduit and capable of moving axially along the gas conduit, the movable component including a disc facing the stepped surface; an exhaust port formed on the outer wall of the housing and adjacent to the stepped surface; a magnetic component including two magnetic rings respectively fixed to the stepped surface and the movable component, the same magnetic poles of the two magnetic rings facing each other; and a one-way valve mounted on the disc to allow airflow only from the first port to the second port.

Description

Technical Field

[0001] This utility model relates to the field of respiratory system treatment technology, and in particular to a breathing valve. Background Technology

[0002] Positive pressure oxygen therapy (PPO) is used to treat or alleviate symptoms of severe respiratory diseases. PPO therapy refers to actively supplying oxygen at a certain pressure to the patient's respiratory system without relying on the patient's own inhalation. Typically, a breathing valve is installed on the air supply tubing near the breathing mask in a PPO system. This valve serves two purposes: firstly, during each oxygen supply cycle, when the patient needs to inhale, the valve limits the pressure and flow rate of oxygen supplied to the patient's respiratory system by the oxygen pump; secondly, during each oxygen supply cycle, when the patient exhales, the valve allows exhaled air to pass through itself, for which an exhaust component (structure) is provided.

[0003] Existing breathing valves have two types of exhaust components: a purely mechanical one, which requires a certain pressure to open to prevent oxygen from being expelled during oxygen supply and failing to reach the respiratory system; however, this configuration creates expiratory resistance, leading to breathing difficulties. The other type is an electrically controlled exhaust component, which uses electromagnetic force to actively open during the patient's exhalation, thus avoiding breathing difficulties. However, this type of exhaust component has three typical drawbacks: it has a certain probability of failure, increasing the risk of suffocation; it requires power, potentially increasing wiring, although batteries can avoid this, they also present charging issues; and it increases the cost of the breathing valve, making it unsuitable for disposable breathing valves. Utility Model Content

[0004] In view of the above-mentioned technical problems existing in the prior art, the present invention provides a breathing valve.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in the embodiments of this utility model is as follows:

[0006] A breathing valve, comprising:

[0007] The housing has a first port and a second port for attachment to a trachea, and a gas conduit formed by the outer wall of the housing and between the first port and the second port, wherein oxygen flows from the first port to the second port, and the patient’s exhaled gas enters the gas conduit from the first port.

[0008] An annular step is disposed in the gas pipeline, the annular step having a stepped surface facing the first port;

[0009] A movable component, located in the gas pipe and capable of moving axially along the gas pipe, the movable component including a disc facing the stepped surface;

[0010] An exhaust port is provided on the outer wall of the housing and adjacent to the stepped surface;

[0011] A magnet component includes two magnetic rings respectively fixed to the stepped surface and the movable component, with the same magnetic poles of the two magnetic rings facing each other;

[0012] A one-way air valve, mounted on the disc body, allows airflow only from the first port to the second port; wherein:

[0013] During inhalation, the oxygen flow pushes the moving component toward the second port so that the disc rests against the stepped surface and forces the one-way valve to open; during exhalation, the oxygen flow is withdrawn, and the magnetic force between the two magnetic rings causes the moving component to move toward the first port, opening and connecting the exhaust port and the central hole defined by the annular step.

[0014] Preferably, the moving component further includes a bellows capable of axial extension and retraction; the first end of the bellows is abutted against the disc body, and the wall of the second end of the bellows is sealed and attached to the inner wall of the gas pipe between the first port and the exhaust port.

[0015] Preferably, the disc body and the corrugated pipe are integrally formed, and the disc body is configured with an annular groove, in which the magnetic ring is accommodated.

[0016] Preferably, the one-way air valve is a bag-type air valve; the bag-type air valve is integrally formed with the disc body.

[0017] Preferably, the moving component further includes a guide tail sleeve, which is integrally formed with the disc body and slides against the inner wall of the gas pipeline.

[0018] Preferably, the one-way valve is a circular valve plate, the disc body has a valve port, and the annular disc body is arranged on the front side of the disc body to cover the valve port.

[0019] Preferably, an axially extending and circumferentially arranged arc-shaped air guide groove is provided on the step surface of the annular step.

[0020] Preferably, the exhaust holes include a plurality of holes, which are arranged circumferentially.

[0021] Preferably, a protective sleeve is disposed around the periphery of the housing at the axial position corresponding to the exhaust port, and the protective sleeve and the housing define an exhaust port facing the first port.

[0022] Preferably, the moving part is made of silicone material.

[0023] Compared with the prior art, the beneficial effects of the breathing valve provided by the embodiments of this utility model are:

[0024] During the patient's exhalation, the central port and exhaust port are opened by a magnetic component, not by the pressure of the exhaled airflow, which greatly reduces expiratory resistance. Furthermore, this breathing valve does not control the opening and closing of the exhaust port via an electronic component, thus reducing the cost of the breathing valve. Attached Figure Description

[0025] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0026] Figure 1 A three-dimensional structural diagram of the breathing valve provided for an embodiment of this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of the front housing of the breathing valve provided in an embodiment of the present invention.

[0028] Figure 3 This is a three-dimensional structural diagram of the rear housing of the breathing valve provided in an embodiment of the present invention.

[0029] Figure 4 A perspective sectional view of a breathing valve with a moving part of the first structure provided for an embodiment of the present invention (the breathing valve is in the process of inhalation).

[0030] Figure 5 A perspective sectional view of a breathing valve with a moving part of the first structure provided for an embodiment of the present invention (the breathing valve is in the exhalation phase).

[0031] Figure 6 A front sectional view of a breathing valve with a moving part of a second structure provided for an embodiment of the present invention (the breathing valve is in the process of inhalation).

[0032] Figure 7 A front cross-sectional view of a breathing valve with a moving part of a second structure provided for an embodiment of the present invention (the breathing valve is in the exhalation phase).

[0033] In the picture:

[0034] 10-Housing; 11-First port; 111-Front housing; 12-Second port; 121-Front housing; 30-Moving part; 31-Disc; 32-Bag valve; 33-Bellpipe; 34-Circular valve plate; 341-Valve port; 35-Guide tail sleeve; 40-Exhaust hole; 41-Sheath; 42-Exhaust port; 51-First magnetic ring; 52-Second magnetic ring. Detailed Implementation

[0035] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0037] like Figures 1 to 7 As shown, an embodiment of the present invention discloses a breathing valve, which includes: a housing 10, an annular step, a moving part 30, a one-way valve, and a magnet part.

[0038] The housing 10 has a first port 11 and a second port 12, between which a gas conduit is defined by the outer wall of the housing 10. The first port 11 and the second port 12 are attached to a trachea (not shown) for supplying oxygen to a breathing mask. An oxygen pump causes oxygen to flow from the first port 11 through the gas conduit to the second port 12, and ultimately to the breathing mask. Preferably, the housing 10 is formed by detachably mating two tubular front housings 121 and a rear housing 111, thereby facilitating the installation, replacement, and maintenance of components within the housing 10.

[0039] An annular step is formed on the inner wall of the gas pipe, that is, the annular step is an annular structure that bulges radially inward inside the gas pipe, the annular structure defines the central hole, and the annular step has a flat step surface facing the first port 11.

[0040] Multiple vent holes 40 are provided on the outer wall of the housing 10 adjacent to and located behind the stepped surface, and the multiple vent holes 40 are arranged circumferentially.

[0041] A movable component 30 is disposed in a gas conduit between the stepped surface and the first port 11. The movable component 30 is axially movable along the gas conduit. The movable component 30 has a disc 31 with a flat surface facing the stepped surface. During patient inhalation, such as... Figure 4 and Figure 6 As shown, the oxygen flow with a certain pressure pushes the disc 31 toward the step surface, causing the disc 31 to abut against the step surface, thereby closing the central hole defined by the annular step.

[0042] A one-way valve is mounted on the disc 31. This one-way valve allows airflow from the first port 11 to the second port 12, while restricting airflow from the second port 12 to the first port 11. Thus, during intake, if... Figure 4 and Figure 6 As shown, the oxygen flow can open the one-way valve to supply oxygen to the breathing mask, and during exhalation, as... Figure 5 and Figure 7 As shown, the one-way valve automatically closes, restricting the airflow exhaled by the patient from flowing through the one-way valve to the first port 11.

[0043] The magnet component includes a first magnetic ring 51 and a second magnetic ring 52. The first magnetic ring 51 is fixed at the annular step, for example, the first magnetic ring 51 is embedded in the step surface. The second magnetic ring 52 is fixed at the disc body 31, with the same magnetic poles of the second magnetic ring 52 facing each other, thus creating a magnetic repulsion between the two magnetic rings. During inhalation, the oxygen flow causes the disc body 31 to overcome the magnetic repulsion between the two magnetic rings and press against the step surface. During exhalation, the oxygen pump stops providing positive pressure oxygen, that is, the oxygen flow is withdrawn, and the magnetic repulsion between the two magnetic rings causes the disc body 31 to leave the step surface, thereby opening and connecting the central hole and the exhaust hole 40. Figure 5 and Figure 7 As shown, the airflow exhaled by the patient is discharged from the casing 10 through the central hole and the exhaust hole 40.

[0044] As described above, during the patient's exhalation, the central port and exhaust port 40 are opened by a magnetic component rather than by the pressure of the exhaled airflow, thus significantly reducing expiratory resistance. Furthermore, this breathing valve does not control the opening and closing of the exhaust port 40 via an electronic control component, thereby reducing the cost of the breathing valve.

[0045] This utility model provides two specific structures for the moving part 30.

[0046] The first type of moving part 30.

[0047] like Figure 4 and Figure 5 As shown, the moving component 30 includes a disc body 31 and a bellows 33. The first end of the bellows 33 is attached to the disc body 31, and the wall of the second end of the bellows 33 is sealed to the inner wall of the gas pipe. Thus, oxygen flowing from the first port 11 enters the bellows 33. The bellows 33 expands and contracts to accommodate the axial movement of the disc body 31. In this structure, the one-way valve is configured as a bag valve 32, which is attached to the front side of the disc body 31. The bag valve 32, the disc body 31, and the bellows 33 are integrally injection molded from silicone. Preferably, an annular groove is provided on the inner side of the disc body 31, and a second magnetic ring 52 is housed in the annular groove. This second magnetic ring 52 supports the disc body 31 to give it a certain rigidity.

[0048] The second type of moving part 30.

[0049] The moving component 30 includes a disc body 31 and a guide sleeve 35. The guide sleeve 35 is located on the rear side of the disc body 31 and is integrally formed with the disc body 31. The disc body 31 and the guide sleeve 35 can be integrally injection molded from polyurethane. The guide sleeve 35 has a certain axial dimension and slides in cooperation with the inner wall of the gas pipeline. The guide sleeve 35 serves two purposes: firstly, to maintain the axial movement of the disc body 31, and secondly, to close the exhaust port 40 during oxygen supply. In this structure, the one-way valve is configured as a circular valve plate 34 made of silicone. A valve port 341 is provided on the disc body 31. The circular valve plate 34 covers the valve port 341 on the front side of the disc body 31, and the middle part of the circular valve plate 34 is attached to the disc body 31. During intake, such as Figure 6 As shown, the oxygen flow enters the guide sleeve 35 and pushes the disc 31 against the stepped surface. Furthermore, the oxygen flow forces the circular valve plate 34 to deform, opening the valve port 341. Figure 7 As shown, during exhalation, the circular valve plate 34 resets and closes the valve port 341.

[0050] In some preferred embodiments, a plurality of axially extending and circumferentially arranged air guide grooves are provided on the step surface of the annular step. These air guide grooves are used to increase the area of ​​the flow cross section defined between the disc 31 and the step surface to further reduce exhalation resistance.

[0051] In some preferred embodiments, a sleeve 41 is disposed around the axial position of the housing 10 corresponding to the vent 40, the sleeve 41 and the housing 10 defining an vent 42 facing the first port 11, the sleeve 41 being used to prevent the vent 40 from being directly blocked.

[0052] Furthermore, although exemplary embodiments have been described in this invention, its scope includes any and all embodiments based on this invention that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, which will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0053] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments can be used by those skilled in the art when reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the invention. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated to be combined with each other in various combinations or arrangements. The scope of the invention should be determined by reference to the appended claims and the full scope of their equivalents.

[0054] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A breather valve characterized in that, include: The housing has a first port and a second port for attachment to a trachea, and a gas conduit formed by the outer wall of the housing and between the first port and the second port, wherein oxygen flows from the first port to the second port, and the patient’s exhaled gas enters the gas conduit from the first port. An annular step is disposed in the gas pipeline, the annular step having a stepped surface facing the first port; A movable component, located in the gas pipe and capable of moving axially along the gas pipe, the movable component including a disc facing the stepped surface; An exhaust port is provided on the outer wall of the housing and adjacent to the stepped surface; A magnet component includes two magnetic rings respectively fixed to the stepped surface and the movable component, with the same magnetic poles of the two magnetic rings facing each other; A one-way air valve, mounted on the disc body, allows airflow only from the first port to the second port; wherein: During inhalation, the oxygen flow pushes the moving component toward the second port so that the disc rests against the stepped surface and forces the one-way valve to open; during exhalation, the oxygen flow is withdrawn, and the magnetic force between the two magnetic rings causes the moving component to move toward the first port, opening and connecting the exhaust port and the central hole defined by the annular step.

2. The breather valve of claim 1, wherein, The moving component also includes a bellows capable of axial extension and retraction; the first end of the bellows is abutted against the disc body, and the wall of the second end of the bellows is sealed and attached to the inner wall of the gas pipe between the first port and the exhaust port.

3. A breather valve according to claim 2, characterised in that The disc body is integrally formed with the corrugated pipe, and the disc body is configured with an annular slot, in which the magnetic ring is housed.

4. The breather valve of claim 2, wherein, The one-way air valve is a bag-type air valve; the bag-type air valve is integrally formed with the disc body.

5. The breather valve of claim 1, wherein, The moving component also includes a guide tail sleeve, which is integrally formed with the disc body and slides against the inner wall of the gas pipeline.

6. The breather valve of claim 5, wherein, The one-way valve is a circular valve plate, and a valve port is provided on the disc. The circular valve plate is arranged on the front side of the disc to cover the valve port.

7. The respiratory valve of claim 1, wherein, An axially extending and circumferentially arranged arc-shaped air guide groove is provided on the step surface of the annular step.

8. The respiratory valve of claim 1, wherein, The exhaust port includes multiple exhaust ports, which are arranged circumferentially.

9. The respiratory valve of claim 1, wherein, A protective sleeve is disposed around the outer periphery of the housing at the axial position corresponding to the exhaust port, and the protective sleeve and the housing define an exhaust port facing the first port.

10. The breather valve of claim 2, wherein, The moving part is made of silicone material.

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