Breathing control device

Abstract

The utility model discloses a breathing control device, which comprises a shell, a gas inlet, a gas outlet, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe, a gas outlet pipe, a gas outlet pipe and a gas outlet pipe, and is characterized in that the shell is internally provided with a columnar cavity; the pipe body comprises a first pipe part and a second pipe part, the first pipe part is located in the columnar cavity, a valve port is formed in a port of the first pipe part, the second pipe part transversely extends out of the shell, and an air outlet is formed in a port of the second pipe part; an annular exhaust gap is defined by the first pipe part and the shell; the oxygen supply hose is connected to the air inlet, and the air outlet is connected to the breathing mask; the flexible diaphragm is configured to be of a folded structure, the flexible diaphragm is transversely arranged above the valve port, and the edge of the flexible diaphragm is connected to the inner wall of the shell; the valve plate is arranged in the middle of the flexible diaphragm, and after the valve plate moves downwards, the valve plate covers the valve port; and the first valve component is arranged on the valve plate and allows the air flow to flow towards the valve port through the valve plate so as to be stopped in the reverse direction.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a control device for adapting to breathing. Background Art

[0002] The positive pressure oxygen supply system generally includes an oxygen source, a breathing mask attached to the patient's face, a gas supply hose connected between the oxygen source and the breathing mask, and a breathing control device (or breathing controller) disposed on the front side of the breathing mask. The breathing control device includes a tubular main body having an air inlet and an air outlet. The air outlet of the main body is connected to the breathing mask, and the gas supply hose is connected to the air inlet of the main body. During the patient's inhalation phase, the oxygen source provides positive pressure oxygen, which enters from the air inlet and flows out from the air outlet to the inner side of the breathing mask for supplying the patient's respiratory system; during the patient's exhalation phase, the oxygen source stops supplying oxygen, and the gas exhaled by the patient causes a valve disposed on the wall of the main body to open, thereby discharging the exhaled gas into the atmosphere.

[0003] The above-mentioned breathing control device in the prior art has the following problems in use:

[0004] If the opening pressure of the valve (the valve opens in response to a pressure above this pressure) is set relatively high, it may hinder the patient's exhalation, thus affecting the smoothness of the exhalation process, which is particularly disadvantageous for patients with critical respiratory systems; if the opening pressure of the valve is set relatively low, during the oxygen supply process of the oxygen source, a relatively large amount of oxygen is likely to force the valve to open and be directly discharged into the external environment, thus unable to supply oxygen to the patient normally. Although, an electromagnetic valve can be configured to actively open the valve port to avoid passive opening due to oxygen pressure. However, this will inevitably increase the size, weight and cost of the device, and more typically, the defects are: 1. Once the electromagnetic valve fails, the patient's exhalation process will be inhibited. 2. If the opening and closing action of the electromagnetic valve does not match the oxygen supply frequency of the oxygen source, it will have a certain impact on the patient's breathing process. Summary of the Utility Model

[0005] In view of the above technical problems existing in the prior art, an embodiment of the utility model provides a breathing control device.

[0006] To solve the above technical problems, the technical solution adopted in the embodiment of the utility model is:

[0007] A breathing control device, comprising:

[0008] A housing having a columnar cavity therein. The upper end of the housing has a laterally extending air inlet, and the lower end of the housing has a vertically extending exhaust port. The air inlet is communicated with the upper end of the columnar cavity, and the exhaust port is communicated with the lower end of the columnar cavity;

[0009] The tube body includes a first tube portion and a second tube portion that are connected and communicate with each other. The first tube portion is located in the columnar cavity and extends vertically. The port of the first tube portion forms a valve port. The second tube portion extends horizontally and protrudes from the housing. The port of the second tube portion forms an air outlet. An annular exhaust gap is formed between the first tube portion and the housing. An oxygen supply hose is connected to the air inlet, and the air outlet is connected to a breathing mask.

[0010] The flexible diaphragm is configured in a corrugated structure. The flexible diaphragm is horizontally disposed above the valve port, and the edge of the flexible diaphragm is connected to the inner wall of the housing.

[0011] The valve plate is disposed in the middle of the flexible diaphragm and corresponds to the valve port. After the valve plate moves downward, the valve plate covers the valve port.

[0012] The first valve member is disposed on the valve plate. The first valve member allows air flow to pass through the valve plate in the direction towards the valve port and blocks it in the reverse direction.

[0013] Preferably, a plurality of hollow portions are circumferentially arranged on the valve plate. The first valve member is a circular first silicone film. The first silicone film is disposed at the bottom of the valve plate to cover the hollow portions. The middle of the first silicone film is fixed to the valve plate. The first silicone film opens the hollow portions by deforming downward.

[0014] Preferably, a first magnetic rubber ring is disposed at the bottom of the valve plate, and a second magnetic rubber ring is disposed on the end face of the valve port. A magnetic repulsive force is formed between the first magnetic rubber ring and the second magnetic rubber ring.

[0015] Preferably, a flow-through groove is formed in the tube wall of the first tube portion. A second valve member is disposed at the flow-through groove. The second valve member allows the air flow in the exhaust gap to enter the first tube portion through the flow-through groove and blocks it in the reverse direction.

[0016] Preferably, there are a plurality of the flow-through grooves, and the plurality of flow-through grooves are circumferentially arranged. A second valve member is disposed at each flow-through groove.

[0017] Preferably, each flow-through groove includes two unit grooves extending axially. The two unit grooves are symmetrically arranged, and there is a rib between the two unit grooves. The second valve member is a strip-shaped second silicone film. The second silicone film covers the inner side of the flow-through groove, and the middle of the second silicone film is fixed to the rib. The two sides of the second silicone film open the two unit grooves by deforming inward.

[0018] Preferably, a filtering component is disposed at the air outlet.

[0019] Preferably, a vision sensor is arranged above the valve plate, and the vision sensor is used to detect the height position of the valve plate and the deformation of the first silica gel film.

[0020] Preferably, the first valve member is a duckbill valve made of silica gel or rubber material.

[0021] Compared with the prior art, the beneficial effects of the breathing control device provided by the embodiments of the present invention are:

[0022] In the breathing device provided by the present invention, the opening pressure of the valve port can be set to be as small as possible, so as to minimize the exhalation resistance. Importantly, the opening pressure as small as possible will not affect the leakage of positive-pressure oxygen during oxygen supply, so that normal oxygen supply can still be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the drawings, which are not necessarily to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used together with the description and the claims to explain the embodiments of the present invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0024] Figure 1 It is a main cross-sectional view of the breathing control device provided by the embodiment of the present invention.

[0025] Figure 2 is Figure 1 the sectional view taken along the line A-A of

[0026] Figure 3 It is a state view of the breathing control device provided by the embodiment of the present invention during the patient's inhalation phase.

[0027] Figure 4 It is a state view of the breathing control device provided by the embodiment of the present invention during the patient's exhalation phase.

[0028] In the figure:

[0029] 10 - Housing; 11 - Air inlet; 12 - Exhaust port; 13 - Exhaust gap; 20 - Pipe body; 21 - First pipe section; 22 - Valve port; 23 - Second pipe section; 24 - Air outlet; 25 - Flow channel; 251 - Unit cell; 252 - Rib; 30 - Flexible diaphragm; 40 - Valve plate; 41 - Hollowed-out part; 51 - First silicone film; 52 - Second silicone film; 60 - Vision sensor; 61 - First magnetic rubber ring; 62 - Second magnetic rubber ring; 70 - Filter component. Detailed implementation mode

[0030] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0031] In order to keep the following description of the embodiments of this utility model clear and concise, the detailed descriptions of known functions and known components are omitted in this utility model.

[0032] An embodiment of this utility model discloses a breathing control device, which is connected to a positive pressure oxygen supply system and is specifically arranged on the front side of a breathing mask.

[0033] As Figure 1 and Figure 2 shown, the breathing control device disclosed in this utility model includes: a housing 10, a pipe body 20, a flexible diaphragm 30, a valve plate 40, a first valve component, a second valve component, a filter component 70 and a vision sensor 60.

[0034] A columnar cavity is enclosed inside the housing 10. The upper part of the housing 10 has a horizontally extending air inlet 11, and the lower part of the housing 10 has a vertically extending exhaust port 12. The air inlet 11 communicates with the upper part of the columnar cavity, and the exhaust port 12 communicates with the lower part of the columnar cavity; the oxygen source of the positive pressure oxygen supply system is connected to the air inlet 11 through an oxygen supply hose, and the exhaust port 12 communicates with the atmosphere.

[0035] The tube body 20 includes a first tube portion 21 and a second tube portion 23; the first tube portion 21 and the second tube portion 23 are integrally formed and communicate with each other; the first tube portion 21 is located in the columnar cavity and extends vertically, the first tube portion 21 is substantially coaxial with the columnar cavity, and an annular exhaust gap 13 is defined between the first tube portion 21 and the housing 10 corresponding to the columnar cavity. The port at the upper end of the first tube portion 21 is formed as a valve port 22, and the second tube portion 23 extends horizontally and protrudes out of the housing 10. The port of the second tube portion 23 protruding out of the housing 10 is formed as an air outlet 24. Thus, when the valve port 22 is in an uncovered state, the air outlet 24 communicates with the exhaust gap 13 and the exhaust port 12. The air outlet 24 is connected to a breathing mask.

[0036] The flexible diaphragm 30 is horizontally disposed above the valve port 22. The flexible diaphragm 30 is configured with a wrinkled structure by plastic forming, so that the flexible diaphragm 30 can be deformed under the action of a relatively small axial force. The edge of the flexible diaphragm 30 is connected to the wall of the columnar cavity; the valve plate 40 is configured as a circular structure, the valve plate 40 is fixedly attached to the middle of the flexible diaphragm 30, and a plurality of hollow portions 41 are formed on the valve plate 40. The plurality of hollow portions 41 are arranged circumferentially. The first valve member is installed at the valve plate 40. The first valve member allows the air flow in the columnar cavity above the valve port 22 to flow through the valve plate 40 and the valve port 22 into the first tube portion 21, while the reverse flow of the air flow is restricted. The first valve member can be a duckbill valve made of silica gel material or rubber material. The present invention provides a first valve member with a preferred structure. The first valve member is a circular silica gel film. The silica gel film may be referred to as the first silica gel film 51. The first silica gel film 51 is disposed at the bottom of the valve plate 40. The middle of the first silica gel film 51 is adhesively fixed to the middle of the valve plate 40, so that the radially outer side of the first silica gel film 51 is in a free state. Thus, the positive pressure oxygen from the air inlet 11 can force the radially outer side of the first silica gel film 51 to deform downward to open the hollow portion 41, so that the positive pressure oxygen enters the first tube portion 21 through the hollow portion 41. After the supply of positive pressure oxygen is stopped, the first silica gel film 51 resets to close the hollow portion 41, so that the exhaled air flow from the first tube portion 21 does not pass through the hollow portion 41. Moreover, the deformation sensitivity of the flexible diaphragm 30 is much greater than that of the first silica gel film 51. Thus, when supplying positive pressure oxygen, after the positive pressure oxygen forces the valve plate 40 to move downward and abut against the valve port 22, the first silica gel film 51 deforms downward to open the hollow portion 41.

[0037] A plurality of flow channels 25 are formed in the tube wall of the first tube portion 21. The plurality of flow channels 25 are arranged circumferentially. A second valve member is provided at each flow channel 25. The second valve member allows the air flow in the exhaust gap 13 to enter the first tube portion 21 through the flow channel 25 and restricts the air flow in the first tube portion 21 from entering the exhaust gap 13 through the flow channel 25. Specifically, each flow channel 25 includes two unit channels 251. The two unit channels 251 are symmetrically arranged and both extend axially. Thus, the two unit channels 251 are strip-shaped grooves. There is a rib 252 between the two unit channels 251. The second valve member is a strip-shaped silica gel film. For convenience, this silica gel film can be called the second silica gel film 52. The second silica gel film 52 is disposed inside the flow channel 25. The middle part of the second silica gel film 52 is adhesively fixed to the rib 252. The two sides of the second silica gel film 52 are in a free state. Thus, the two sides of the second silica gel film 52 cover the unit channels 251. In this way, when the pressure in the first tube portion 21 is less than the pressure in the exhaust gap 13, the pressure difference between the two forces the second silica gel film 52 to deform inward, thereby opening the unit channels 251. The air flow in the exhaust gap 13 enters the first tube portion 21 through the unit channels 251. When the pressure in the first tube portion 21 is greater than the pressure in the exhaust gap 13, the pressure difference between the two forces the second silica gel film 52 to cover the unit channels 251, thereby restricting the air flow in the first tube portion 21 from entering the exhaust gap 13 through the unit channels 251. In addition, compared with the first silica gel film 51, the second silica gel film 52 is processed to have a smaller thickness. Thus, the deformation sensitivity of the second silica gel film 52 is much greater than that of the first silica gel film 51. Thus, when the pressure difference between the pressure in the exhaust gap 13 and the pressure in the first tube portion 21 is small, the second silica gel film 52 can still deform to open the unit channels 251.

[0038] The filtering member 70 is installed at the exhaust port 12. Preferably, the filtering member 70 is a stacked multi-layer filter mesh. The filter membrane is used to prevent external impurities from entering the housing 10. The vision sensor 60 is installed above the valve plate 40. The vision sensor 60 has two functions: detecting the position of the valve plate 40 to determine whether the valve plate 40 is pressed against the valve port 22; detecting whether the first silica gel film 51 deforms downward. A first magnetic rubber ring 61 is attached to the bottom of the valve plate 40, and a second magnetic rubber ring 62 is attached to the valve port 22. A certain magnetic repulsive force (this magnetic repulsive force is small) is formed between the first magnetic rubber ring 61 and the second magnetic rubber ring 62. Under the action of the magnetic repulsive force, the air flow can more easily drive the valve plate 40 to move upward to open the valve port 22.

[0039] The working process of the above-mentioned respiration control device will be introduced below.

[0040] During the inhalation phase of the patient, as Figure 3As shown, the oxygen source supplies positive-pressure oxygen to the air inlet 11 of the device through an oxygen supply hose. After the positive-pressure oxygen enters the upper part of the columnar cavity, it first forces the valve plate 40 to move downward and abut against the valve port 22. Subsequently, it forces the first silica gel membrane 51 to deform downward to open the hollow part 41 of the valve plate 40. The positive-pressure oxygen enters the first pipe part 21 through the hollow part 41, flows from the air outlet 24 of the second pipe part 23 to the breathing mask, and then is supplied to the respiratory system of the patient. During this process, because the valve plate 40 abuts against the valve port 22, the positive-pressure oxygen will not enter the exhaust gap 13. Therefore, the positive-pressure oxygen will not leak or will leak very little, so that normal oxygen supply can be achieved.

[0041] During the exhalation phase of the patient, as Figure 4 shown, the positive-pressure gas source stops supplying oxygen. The first silica gel membrane 51 closes the hollow part 41 of the valve plate 40. The exhaled air flow of the patient enters the pipe body 20 through the air outlet 24 of the device. The exhaled air flow will not pass through the hollow part 41, but forces the valve component to move upward to open the valve port 22. The exhaled air flow enters the exhaust gap 13 through the valve port 22, and then is discharged into the atmosphere through the filter component 70. During this process, because the oxygen source stops supplying positive-pressure oxygen, the exhaled gas can easily make the valve plate 40 move upward to open the valve port 22. Moreover, the magnetic repulsion force between the first magnetic rubber ring 61 and the second magnetic rubber ring 62 makes the valve plate 40 have an upward movement tendency, thus assisting the air flow to open the valve port 22, so that the patient's exhalation process is relatively smooth.

[0042] During the inhalation phase, if for some reason the valve plate 40 has abutted against the covering part and the second silica gel membrane 52 has not deformed to open the hollow part 41, at this time, the patient inhales actively, making the pressure in the pipe body 20 less than the pressure in the exhaust gap 13. The second silica gel membrane 52 deforms to open the flow-through groove 25. The outside air can enter the exhaust gap 13 through the exhaust port 12, enter the pipe body 20 through the flow-through groove 25, and then enter the respiratory system of the patient, so as to avoid the patient from suffocating. At the same time, the visual sensor 60 sends out an alarm message to indicate that there is a fault inside the device.

[0043] During the inhalation phase, if the visual sensor 60 detects that the valve plate 40 is still in the high position and has not abutted against the valve port 22, this indicates that the positive-pressure oxygen leaks through the valve port 22. At this time, the visual sensor 60 sends out an alarm message.

[0044] Moreover, although exemplary embodiments have been described in the present utility model, the scope thereof includes any and all embodiments based on the present utility model having equivalent elements, modifications, omissions, combinations (e.g., solutions that cross various embodiments), adaptations or alterations. The elements in the claims will be broadly construed based on the language employed in the claims and are not limited to the examples described in the present specification or during the implementation of the present application, and the examples will be construed as non-exclusive. Therefore, the present specification and examples are intended to be considered only as examples, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0045] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. Additionally, in the above detailed description, various features can be grouped together to simplify the present utility model. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. On the contrary, the subject matter of the present utility model can be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein as examples or embodiments into the detailed description, where each claim independently serves as a separate embodiment, and considering these embodiments, they can be combined with each other in various combinations or permutations. The scope of the present utility model should be determined with reference to the appended claims and the full scope of the equivalent forms empowered by these claims.

[0046] The above embodiments are only exemplary embodiments of the present utility model and are not used to limit the present utility model. The protection scope of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present utility model.

Claims

1. A breathing control device, characterized in that, Comprising: A housing having a columnar cavity therein, with a laterally extending air inlet at the upper end of the housing and a vertically extending air outlet at the lower end of the housing. The air inlet communicates with the upper end of the columnar cavity, and the air outlet communicates with the lower end of the columnar cavity; A pipe body including a first pipe portion and a second pipe portion that are connected and communicate with each other. The first pipe portion is located in the columnar cavity and extends vertically. The port of the first pipe portion forms a valve port. The second pipe portion extends laterally and extends out of the housing. The port of the second pipe portion forms an air outlet. An annular exhaust gap is formed between the first pipe portion and the housing. An oxygen supply hose is connected to the air inlet, and the air outlet is connected to a breathing mask; A flexible diaphragm configured in a folded structure, horizontally disposed above the valve port, and the edge of the flexible diaphragm is connected to the inner wall of the housing; A valve plate disposed in the middle of the flexible diaphragm and corresponding to the valve port. After the valve plate moves downward, the valve plate covers the valve port; A first valve component disposed on the valve plate, and the first valve component allows air flow to pass through the valve plate in the direction towards the valve port and blocks in the reverse direction.

2. The respiratory control device according to claim 1, wherein A plurality of hollow portions are circumferentially arranged on the valve plate. The first valve component is a circular first silicone film, and the first silicone film is disposed at the bottom of the valve plate to cover the hollow portions. The middle of the first silicone film is fixed to the valve plate, and the first silicone film opens the hollow portions by deforming downward.

3. The respiratory control device according to claim 1, wherein A first magnetic rubber ring is disposed at the bottom of the valve plate, and a second magnetic rubber ring is disposed on the end face of the valve port. A magnetic repulsive force is formed between the first magnetic rubber ring and the second magnetic rubber ring.

4. The respiratory control device according to claim 1, characterized in that, Flow channels are provided on the pipe wall of the first pipe portion, and a second valve component is provided at the flow channels. The second valve component allows the air flow in the exhaust gap to enter the first pipe portion through the flow channels and blocks in the reverse direction.

5. The breathing control device according to claim 4, characterized in that There are a plurality of the flow channels, and the plurality of flow channels are circumferentially arranged. A second valve component is provided at each of the flow channels.

6. The respiratory control device according to claim 5, characterized in that, Each of the flow channels includes two axially extending unit channels, and the two unit channels are symmetrically arranged with a rib therebetween. The second valve component is a strip-shaped second silicone film, and the second silicone film covers the inner side of the flow channel. The middle of the second silicone film is fixed to the rib, and the two sides of the second silicone film open the two unit channels by deforming inwards.

7. The breathing control device according to claim 1, characterized in that A filtering component is provided at the air outlet.

8. The breathing control device according to claim 2, wherein, A visual sensor is arranged above the valve plate, and the visual sensor is used to detect the height position of the valve plate and the deformation of the first silicone film.

9. The respiratory control device according to claim 1, characterized in that, The first valve component is a duckbill valve made of silicone or rubber material.

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