Valve

Abstract

The present application provides a valve comprising: a valve seat comprising a plurality of openings; the first pair of valve components can linearly translate along a first straight line and are configured to control the opening and closing states of the first pair of openings; and a second pair of valve members capable of linearly translating along a second straight line and configured to control the opening and closing states of the second pair of openings.

Description

Technical Field

[0001] This application relates to a valve, and more particularly (but not exclusively) to a valve that can be used in an auxiliary expectoration device. Background Technology

[0002] The human body possesses the ability to actively clear airways under physiological conditions. However, when the airway barrier, mucus clearance system, and active coughing ability are impaired due to disease or other factors, the use of mechanical airway clearance devices to remove airway secretions becomes particularly important. One known mechanical airway clearance device is the mechanical inhalation / exhalation (MIE) device, a typical application of which is cough assistance. The principle involves first providing positive pressure to the patient's airway and then suddenly switching to negative pressure. This positive and negative pressure create a higher expiratory flow rate within the airway, simulating a cough to assist the patient in clearing airway secretions. Sometimes, pressure oscillations can be superimposed during inhalation and / or exhalation to loosen secretions in the patient's airway.

[0003] Some existing MIE devices separate positive and negative pressure air paths, for example, using one pressure source to provide positive pressure and another to provide negative pressure. This not only increases the cost, size, and weight of the equipment, but also has a very negative impact on the difficulty and effectiveness of airflow control, resulting in poor controllability.

[0004] Some existing MIE devices use only a single pressure source to generate both positive and negative pressure, significantly reducing the size of the equipment. In these MIE devices, the switching between positive and negative pressures, as well as the superimposed pressure oscillations, are generally achieved through valves. The valves used in these MIE devices must be able to supply high flow rates and must be able to switch quickly to reverse the airflow. Furthermore, better controllability, faster response speed, better sealing, higher safety, smaller size, and simpler structure are also directions for valve design in MIE devices. However, valve design is constrained by various conflicting characteristics, and the selected valves are generally compromises between these characteristics. For example, to prevent valve leakage, good sealing is required, but this usually increases friction within the valve, thus reducing the valve switching speed. Or, to quickly switch between positive and negative output pressures, the valve orifice must be as large as possible, but this usually leads to an increased valve volume and a longer air passage, thus reducing the valve's response and switching speed.

[0005] There is currently no valve technology that can effectively solve the above-mentioned technical problems, which is one of the technical challenges in the development of MIE technology. Utility Model Content

[0006] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this section is not intended to identify key or essential parts of this application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form. Further details will be explained in other parts of this application.

[0007] To solve the above-mentioned technical problems, this application provides a valve, including: a valve seat including a plurality of openings; a first pair of valve members that can be linearly translated along a first straight line and configured to control the opening and closing state of the first pair of openings; and a second pair of valve members that can be linearly translated along a second straight line and configured to control the opening and closing state of the second pair of openings.

[0008] In some embodiments, the first pair of valve members and the second pair of valve members are mechanically separated and open; or the first pair of openings and the second pair of openings are mechanically separated and open.

[0009] In some embodiments, the first pair of openings are opposite to each other along the first straight line; and the second pair of openings are opposite to each other along the second straight line.

[0010] In some embodiments, the first line and the second line are parallel and not collinear.

[0011] In some embodiments, the first pair of valve members can be linearly translated along the first straight line between a first position and a second position, and the second pair of valve members can be linearly translated along the second straight line between a third position and a fourth position, wherein: when the first pair of valve members is in the first position or the second position, one of the first pair of valve members closes one of the first pair of openings, and the distance between the other of the first pair of valve members and the other of the first pair of openings on the first straight line is greater than zero to allow fluid to pass through; when the second pair of valve members is in the third position or the fourth position, one of the second pair of valve members closes one of the second pair of openings, and the distance between the other of the second pair of valve members and the other of the second pair of openings on the second straight line is greater than zero to allow fluid to pass through.

[0012] In some embodiments, the valve components are plate-shaped, wherein: the first pair of valve components are perpendicular to the first straight line; and the second pair of valve components are perpendicular to the second straight line.

[0013] In some embodiments, the valve component includes: a support portion; and an elastic sealing portion fixed to the support portion.

[0014] In some embodiments, the first pair of valve members are fixed to a first rod, the first rod being at least partially located in a first main chamber between and communicating with the first pair of openings; the second pair of valve members are fixed to a second rod, the second rod being at least partially located in a second main chamber between and communicating with the second pair of openings.

[0015] In some embodiments, one end of the first rod extends out of the first main chamber via one of the first pair of openings to connect to a first linear drive device located outside the first main chamber; one end of the second rod extends out of the second main chamber via one of the second pair of openings to connect to a second linear drive device located outside the second main chamber.

[0016] In some embodiments, the valve seat further includes: a first main chamber located between and communicating with the first pair of openings; and a second main chamber located between and communicating with the second pair of openings.

[0017] In some embodiments, the height of the first main chamber along the first straight line and / or the height of the second main chamber along the second straight line is not less than 12 mm; and / or the width of the first main chamber in the direction perpendicular to the first straight line and / or the width of the second main chamber in the direction perpendicular to the second straight line is not less than 30 mm.

[0018] In some embodiments, the first pair of valve components are both outside the first main chamber, and the second pair of valve components are both outside the second main chamber; the first pair of valve components are both outside the first main chamber, and the second pair of valve components are both inside the second main chamber; the first pair of valve components are both inside the first main chamber, and the second pair of valve components are both outside the second main chamber; or the first pair of valve components are both inside the first main chamber, and the second pair of valve components are both inside the second main chamber.

[0019] In some embodiments, the plurality of openings includes a first opening, a second opening, a third opening, and a fourth opening; the first pair of openings includes the first opening and the second opening; the second pair of openings includes the third opening and the fourth opening; the first pair of valve components includes: a first valve component facing the first opening and controlling the opening and closing state of the first opening, and a second valve component facing the second opening and controlling the opening and closing state of the second opening; the second pair of valve components includes: a third valve component facing the third opening and controlling the opening and closing state of the third opening, and a fourth valve component facing the fourth opening and controlling the opening and closing state of the fourth opening.

[0020] In some embodiments, the area of ​​the first opening, the area of ​​the second opening, the area of ​​the third opening, and / or the area of ​​the fourth opening is not less than 100 mm². 2 .

[0021] In some embodiments, the plurality of openings further includes: a fifth opening communicating with the first main chamber; and a sixth opening communicating with the second main chamber.

[0022] In some embodiments, the first opening and the third opening are configured to communicate with the atmosphere; the second opening and the fourth opening are configured to communicate with the patient's airway; the fifth opening is configured to connect to the inlet of the fan; and the sixth opening is configured to connect to the outlet of the fan.

[0023] In some embodiments, the valve seat further includes: a first communication cavity communicating with the first main chamber via the first opening and with the second main chamber via the third opening; and / or a second communication cavity communicating with the first main chamber via the second opening and with the second main chamber via the fourth opening.

[0024] In some embodiments, the plurality of openings further include: a patient port, through which the second communication cavity is connected to a patient airway; and an atmospheric port, through which the first communication cavity is connected to the atmosphere.

[0025] In some embodiments, the first main chamber and the second main chamber are located between the first communicating cavity and the second communicating cavity.

[0026] In some embodiments, the first straight line and the second straight line are both in the direction of gravity; the first main chamber and the second main chamber are horizontally parallel; the first connecting cavity is below the first main chamber and the second main chamber, and the second connecting cavity is above the first main chamber and the second main chamber.

[0027] In some embodiments, the valve seat includes a first coupling surface surrounding the first opening, a second coupling surface surrounding the second opening, a third coupling surface surrounding the third opening, and a fourth coupling surface surrounding the fourth opening. The first valve member includes a first movable sealing surface that can be coupled to the first coupling surface to close the first opening. The second valve member includes a second movable sealing surface that can be coupled to the second coupling surface to close the second opening. The third valve member includes a third movable coupling sealing surface that can be coupled to the third coupling surface to close the third opening. The fourth valve member includes a fourth movable sealing surface that can be coupled to the fourth coupling surface to close the fourth opening.

[0028] In some embodiments, the movable sealing surface includes: a plane; and / or a conical surface.

[0029] In some embodiments, when the first movable sealing surface couples with the first coupling surface to close the first opening, the distance between the second movable sealing surface and the second coupling surface on the first straight line is greater than zero, causing the second opening to open; when the second movable sealing surface couples with the second coupling surface to close the second opening, the distance between the first movable sealing surface and the first coupling surface on the first straight line is greater than zero, causing the first opening to open; when the third movable sealing surface couples with the third coupling surface to close the third opening, the distance between the fourth movable sealing surface and the fourth coupling surface on the second straight line is greater than zero, causing the fourth opening to open; when the fourth movable sealing surface couples with the fourth coupling surface to close the fourth opening, the distance between the third movable sealing surface and the third coupling surface on the second straight line is greater than zero, causing the third opening to open.

[0030] In some embodiments, the sum of the distance (Δ1) between the first coupling surface and the first movable sealing surface on the first straight line and the distance (Δ2) between the second coupling surface and the second movable sealing surface on the first straight line is constant; the sum of the distance (Δ3) between the third coupling surface and the third movable sealing surface on the second straight line and the distance (Δ4) between the fourth coupling surface and the fourth movable sealing surface on the second straight line is constant.

[0031] In some embodiments, the first movable sealing surface and the second movable sealing surface are perpendicular to the first straight line; and / or the third movable sealing surface and the fourth movable sealing surface are perpendicular to the second straight line.

[0032] In some embodiments, the travel (S1) of the first pair of valve members along the first straight line and the travel (S2) of the second pair of valve members along the second straight line are equal; the first main chamber and the second main chamber are identical in shape and size; and / or the first opening, the second opening, the third opening and the fourth opening are identical in shape and size.

[0033] In some embodiments, the valve further includes: a first linear drive device configured to drive the first pair of valve members to translate linearly along the first straight line; a second linear drive device configured to drive the second pair of valve members to translate linearly along the second straight line; a first additional force application module configured to apply a first additional force monotonically related to the position of the first pair of valve members to the first pair of valve members along the first straight line; and / or a second additional force application module configured to apply a second additional force monotonically related to the position of the second pair of valve members to the second pair of valve members along the second straight line.

[0034] In some embodiments, the first pair of valve components move synchronously along the first straight line to synchronously control the opening and closing states of the first pair of openings; the second pair of valve components move synchronously along the second straight line to synchronously control the opening and closing states of the second pair of openings.

[0035] In some embodiments, the stroke (S1) of the first pair of valve components moving along the first straight line and / or the stroke (S2) of the second pair of valve components moving along the second straight line is not less than 3 mm.

[0036] The valve provided in this application features fast and precise switching, good controllability, fast response, good sealing, small size, simple structure, high safety, short air path, and low frictional resistance, which can comprehensively solve many technical problems existing in the prior art. Attached Figure Description

[0037] The following accompanying drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals denote similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting and exemplary, and the drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Other embodiments may similarly fulfill the inventive intent of this application. It should be understood that the drawings are not drawn to scale. Wherein:

[0038] Figure 1 A schematic diagram of a valve according to an embodiment of this application is shown;

[0039] Figure 2A -2B shows a schematic diagram of two valves provided according to embodiments of this application;

[0040] Figures 3A-3F show six schematic diagrams of "two openings (m, n) opposite each other in the direction of line L" provided according to embodiments of this application;

[0041] Figures 4A-4B show schematic diagrams of two "two openings (m,n) not opposite each other in the direction of line L" provided according to embodiments of this application;

[0042] Figures 5A-5C show schematic diagrams of the structures of three valve components provided according to embodiments of this application;

[0043] Figures 6A-6B illustrate two states of a valve provided according to an embodiment of this application;

[0044] Figure 7A illustrates an oscillation schematic diagram according to an embodiment of this application; and

[0045] Figures 8A-8C show schematic diagrams of three valves provided according to embodiments of this application. Detailed Implementation

[0046] The following description provides specific application scenarios and requirements for this application, intended to enable those skilled in the art to manufacture and use the contents of this application. In consideration of the following description, these and other features of this disclosure, as well as the operation and function of related structural elements, and the economy of component combination and manufacture, can be significantly improved. All of these form part of this disclosure with reference to the accompanying drawings. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this disclosure. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0047] This application provides a valve. As an example, Figure 1 A schematic diagram of a valve 002 according to an embodiment of this application is shown. As an example, Figure 2A A schematic diagram of a valve 002 according to an embodiment of this application is shown. (Reference) Figure 1 and Figure 2A Valve 002 may include valve seat 100 and a plurality of movable valve components 200. In some embodiments, valve 002 may also include a first linear drive device 510, a second linear drive device 520, a first additional force application module 710 and / or a second additional force application module 720.

[0048] The valve seat 100 has a cavity structure. The cavity can form a channel for fluid flow. There can be multiple cavity structures. Specifically, the valve seat 100 may include a first main chamber 410 and a second main chamber 420. In some embodiments, the valve seat 100 may also include a first communicating cavity 610 and / or a second communicating cavity 620.

[0049] Valve seat 100 may include multiple openings. These openings may include open / closed ports that can be controlled to open or close during operation. The multiple openings may also include a normally open opening that is always open during operation. Specific openings and specific cavities together define specific channels. The multiple openings may be disposed on the wall, ribs, or inner cavity partitions of valve seat 100. In some embodiments, openings on the outer wall may serve as connecting terminals to fluidly connect the inner cavity of valve seat 100 to other components. In some embodiments, openings on the ribs or partitions within valve seat 100 may be used to connect two adjacent cavities separated by the ribs or partitions. As an example, the multiple openings may include a first opening A, a second opening B, a third opening C, and a fourth opening D. In some embodiments, the multiple openings may also include a fifth opening E and / or a sixth opening F.

[0050] In some embodiments, the valve seat 100 may include a first main chamber 410. In some embodiments, the first main chamber 410 may include a cylindrical cavity extending along a first straight line L1. As an example, the first main chamber 410 may be a cylindrical cavity or a prismatic cavity extending along the first straight line L1. The first main chamber 410 may include a first opening A and a second opening B. Both the first opening A and the second opening B may be openable or closedable. Both the first opening A and the second opening B may be controlled to open or close by the valve member 200. In some embodiments, the valve seat 100 may include a first coupling surface P1 surrounding the first opening A and a second coupling surface P2 surrounding the second opening B. The first coupling surface P1 is annularly surrounding the first opening A. The surface area of ​​the first valve member 200a corresponding to the first opening A is larger than the area of ​​the first opening A, and the first opening A is completely closed when the outer edge of the first valve member 200a is attached to the first coupling surface P1. The second coupling surface P2 is annularly surrounding the second opening B. The surface area of ​​the second valve component 200b corresponding to the second opening B is larger than the area of ​​the second opening B. When the outer edge of the second valve component 200b is attached to the second coupling surface P2, the second opening B is completely closed. The first opening A and the second opening B constitute a first pair of openings. The first main chamber 410 is located between and communicates with the first pair of openings (A, B). The first opening A and the second opening B can be respectively located at opposite ends of the first main chamber 410. For example, the first opening A is at the top of the first main chamber 410 along the first straight line L1, and the second opening B is at the bottom of the first main chamber 410 along the first straight line L1. The first main chamber 410 may also include a fifth opening E. In some cases, the second opening B is completely closed, and the fifth opening E communicates only with the first opening A, forming a first channel. In some cases, the first opening A is closed, and the fifth opening E communicates only with the second opening B, forming a second channel. In some cases, both the first opening A and the second opening B are open, and the fifth opening E communicates with both the first opening A and the second opening B simultaneously. As an example, the fifth opening E is connected to the fan inlet 910, the first opening A is connected to the atmospheric port G, and the second opening B is connected to the patient port H. As an example, the fifth opening E can be located on the side wall 411 of the first main chamber 410, perpendicular to the first straight line L1. This minimizes the length of the airway and the volume of the auxiliary expectorant device, thus improving response speed. Of course, those skilled in the art will understand that the fifth opening E can also be located in other positions within the first main chamber 410 (such as the top or bottom) without affecting the core spirit of this application.

[0051] In some embodiments, the valve seat 100 may include a second main chamber 420. In some embodiments, the second main chamber 420 may include a cylindrical cavity extending along a second straight line L2. As an example, the second main chamber 420 may be a cylindrical or prismatic cavity extending along the second straight line L2. In some embodiments, the first main chamber 410 and the second main chamber 420 have the same shape and size. The second main chamber 420 may include a third opening C and a fourth opening D. Both the third opening C and the fourth opening D may be openable or closed. Both the third opening C and the fourth opening D may be controlled to open or close by the valve member 200. In some embodiments, the valve seat 100 includes a third coupling surface P3 surrounding the third opening C and a fourth coupling surface P4 surrounding the fourth opening D. The third coupling surface P3 is annularly surrounding the third opening C. The surface area of ​​the third valve member 200c directly opposite the third opening C is larger than the area of ​​the third opening C, and the third opening C is completely closed when the outer edge of the third valve member 200c is attached to the third coupling surface P3. The fourth coupling surface P4 is annularly surrounding the fourth opening D. The surface area of ​​the fourth valve member 200d, which is directly opposite to the fourth opening D, is larger than the area of ​​the fourth opening D. When the outer edge of the fourth valve member 200d is attached to the fourth coupling surface P4, the fourth opening D is completely closed. The third opening C and the fourth opening D constitute the second pair of openings. The second main chamber 420 is located between and communicates with the second pair of openings (C,D). The third opening C and the fourth opening D can be respectively located at opposite ends of the second main chamber 420. For example, the third opening C is at the top of the second main chamber 420 along the second straight line L2, and the fourth opening D is at the bottom of the second main chamber 420 along the second straight line L2. The second main chamber 420 may also include a sixth opening F. Sometimes, the fourth opening D is completely closed, and the sixth opening F communicates only with the third opening C. Sometimes, the third opening C is completely closed, and the sixth opening F communicates only with the fourth opening D. Sometimes, both the third opening C and the fourth opening D are open, and the sixth opening F communicates with both the third opening C and the fourth opening D simultaneously. As an example, the sixth opening F connects to the fan outlet 920, the third opening C connects to the atmospheric port G, and the fourth opening D connects to the patient port H. As an example, the sixth opening F can be located on the side wall 421 of the second main chamber 420, perpendicular to the second straight line L2. This minimizes the length of the airway and the volume of the auxiliary expectoration device, thus improving response speed. Of course, those skilled in the art will understand that the sixth opening F can also be located in other positions within the second main chamber 420 (e.g., at the top or bottom) without affecting the core spirit of this application.

[0052] As an example, the first pair of openings (first opening A, second opening B) are opposite to each other in the direction of the first straight line L1. As an example, the second pair of openings (third opening C, fourth opening D) are opposite to each other in the direction of the second straight line L2. As an example, Figures 3A, 3B, 3C, 3D, 3E, and 3F show six schematic diagrams of "two openings (m, n) being opposite to each other in the direction of straight line L" according to embodiments of this application. As an example, Figures 4A and 4B show two schematic diagrams of "two openings (m, n) not being opposite to each other in the direction of straight line L". The two openings (m, n) shown in Figure 4A are adjacent but not opposite, and the two openings (m, n) shown in Figure 4B are opposite in the direction of straight line l, but not opposite in the direction of straight line L. Referring to Figures 3A-3F, openings m and n being opposite to each other in the direction of straight line L can include openings m and n being directly opposite each other in the direction of straight line L and openings a and b being diagonally opposite each other in the direction of straight line L. As examples, Figures 3A, 3B, and 3C show schematic diagrams of three openings a and b provided according to embodiments of this application, directly opposite each other along the straight line L. As examples, Figures 3D, 3E, and 3F show schematic diagrams of three openings a and b provided according to embodiments of this application, diagonally opposite each other along the straight line L. (Continue to refer to...) Figure 1 and Figure 2A As an example, the first opening A and the second opening B can be directly opposite each other in the direction of the first straight line L1, or they can be diagonally opposite each other in the direction of the first straight line L1. Figure 1 and Figure 2A In the illustrated embodiment, the first opening A and the second opening B are directly opposite each other in the direction of the first straight line L1. The third opening C and the fourth opening D may be directly opposite each other in the direction of the second straight line L2, or they may be diagonally opposite each other in the direction of the second straight line L2. Figure 1 and Figure 2A In the embodiment shown, the third opening C and the second opening D are directly opposite each other in the direction of the second straight line L2.

[0053] Continue to refer to Figure 1 and Figure 2A In some embodiments, the first main chamber 410 and the second main chamber 420 are not directly connected. Specifically, as shown in the example... Figure 1 and Figure 2A As shown, there are no through holes / channels on the adjacent wall T of the first main chamber 410 and the second main chamber 420 that directly connect the first main chamber 410 and the second main chamber 420. As an example, the first opening A, the second opening B, the fifth opening E, and the first main chamber 410 form a two-position three-way valve (first two-position three-way valve), and the third opening C, the fourth opening D, the sixth opening F, and the second main chamber 420 form another two-position three-way valve (second two-position three-way valve). These two two-position three-way valves have independent internal structures and are only fluidly connected to other pipelines via six openings (A, B, C, D, E, F).

[0054] In some embodiments, the valve seat 100 may further include a first communication cavity 610. The first communication cavity 610 may include the first opening A and the third opening C. The first communication cavity 610 communicates with a first main chamber 410 via the first opening A and with a second main chamber 420 via the third opening C. The first communication cavity 610 may further include an atmospheric port G. The first communication cavity 610 is configured to communicate the first opening A and the third opening C with the atmospheric port G.

[0055] In some embodiments, the valve seat 100 may further include a second communication cavity 620. The second communication cavity 620 may include the second opening B and the fourth opening D. The second communication cavity 620 may communicate with the first main chamber 410 via the second opening B and with the second main chamber 420 via the fourth opening D. The second communication cavity 620 also includes a patient port H. The patient port H is used for airway connection to a patient's airway. The second communication cavity 620 is configured to communicate the second opening B and the fourth opening D with the patient port H.

[0056] In some embodiments, the first main chamber 410 and the second main chamber 420 are located between the first connecting chamber 610 and the second connecting chamber 620. As an example, the first main chamber 410 and the second main chamber 420 can be arranged side-by-side. The first opening A of the first main chamber 410 for connecting to the atmosphere and the third opening C of the second main chamber 420 for connecting to the atmosphere are both at one end, and the second opening B of the first main chamber 410 for connecting to the patient end and the fourth opening D of the second main chamber 420 for connecting to the patient end are both at the other end. The first connecting chamber 610 can be at one end of the first main chamber 410 and the second main chamber 420, and the second connecting chamber 620 can be at the other end of the first main chamber 410 and the second main chamber 420. This allows the structure of the valve 002 and the auxiliary expectoration device 001 to be as compact as possible, shortening the airway length, increasing the switching speed, and improving the response speed of the auxiliary expectoration device 001 while ensuring a large cross-sectional diameter of the channel. Figure 2AAs shown, as an example, the first straight line L1 and the second straight line L2 can both be in the direction of gravity, and the first main chamber 410 and the second main chamber 420 are horizontally aligned side by side. In some embodiments, the first connecting cavity 610 is above the first main chamber 410 and the second main chamber 420, and the second connecting cavity 620 is below the first main chamber 410 and the second main chamber 420. Placing the first connecting cavity 610, including the atmospheric port G, at the top facilitates heat dissipation and exhaust. Placing the heavier first linear drive device 510 and the second linear drive device 520 at the bottom lowers the center of gravity of the auxiliary coughing device, increasing stability. Of course, in some embodiments, the second connecting cavity can be above the first main chamber and the second main chamber, and the first connecting cavity can be below the first main chamber and the second main chamber. For example, for better waterproofing, the first and second linear drive devices can be positioned at the top. In this case, the second connecting cavity 620 can be positioned above the first and second main chambers 410 and 420, while the first connecting cavity 610 can be positioned below the first and second main chambers 410 and 420. As an example, the fifth opening E can be located on the side wall of the first main chamber 410, and the sixth opening F can be located on the side wall of the second main chamber 420. This can further shorten the length of the air path between the valve 002 and the fan 900, improve the response speed of the auxiliary coughing device 001, reduce its size, and improve the switching and response speeds.

[0057] In some embodiments, the valve seat 100 may include a plurality of removable housings. The plurality of removable housings are connected to form the valve seat 100. As an example, the connection may be a threaded connection. For example... Figure 1 As shown, the first pair of valve components (200a, 200b) are located in the first main chamber 410, and the second pair of valve components (200c, 200d) are located in the second main chamber 420. In this configuration, the valve seat 100 may include a top plate, a main housing, and a lower housing. This arrangement facilitates the installation of the valve components 200.

[0058] Based on the preceding description, valve 002 includes several valve components 200. Each valve component 200 is an element used to control the opening and closing of an opening. Each valve component 200 is a control component of valve 200. One valve component 200 controls the opening and closing of one opening. Multiple valve components 200 cooperate to control the operating state of valve 002. Each valve component 200 is movable relative to valve seat 100. Each valve component 200 can control the opening and closing state of a corresponding opening. It should be noted that the opening and closing states include, but are not limited to, "opening fully open," "opening fully closed," and "the extent to which the opening is opened." The assisted cough device 001 can adjust the direction, velocity, and / or pressure of airflow at the patient interface by adjusting the opening and closing state of the corresponding opening through each valve component.

[0059] As an example, Figure 5A shows a schematic diagram of a valve component 200 according to an embodiment of this application. The valve component 200 may be plate-shaped. Specifically, the valve component 200 may include a support portion 210 and an elastic sealing portion 220.

[0060] The support portion 210 can provide support for the resilient sealing portion 220. As an example, the support portion 210 can be made of a rigid material (e.g., hard plastic, steel, alloy, etc.).

[0061] The resilient sealing portion 220 is elastic. As an example, the resilient sealing portion 220 is made of an elastic material (such as silicone). The resilient sealing portion 220 is fixed to the support portion 210. The resilient sealing portion 220 includes an outer edge 221 surrounding the corresponding opening. After the valve member 200 closes the corresponding opening, the resilient sealing portion 220 is pressed between the valve seat 100 and the support portion 210, creating a sealing effect at the edge of the corresponding opening. In some embodiments, the resilient sealing portion 220 is fixed to the surface 211 of the support portion 210 facing the corresponding opening, as shown in FIG5A. For example, the resilient sealing portion 220 can be glued to the surface 211 of the support portion 210 facing the corresponding opening. As an example, FIG5B shows a schematic diagram of another valve member 200 provided according to an embodiment of this application. Referring to FIG5B, in some embodiments, the resilient sealing portion 220 is sleeved around the outer edge of the support portion 210. During the operation of the assisted expectoration device, the elastic sealing part 220 is more prone to wear. By fitting the elastic sealing part 220 over the support part 210, the elasticity of the elastic sealing part 220 itself can fix the elastic sealing part 220 and the support part 210. No additional adhesive or other components are needed to fix the elastic sealing part 220 and the support part 210, which is convenient for installation and disassembly, and makes the replacement of the elastic sealing part 220 more convenient.

[0062] It should be noted that in the valve component structures shown in Figures 5A and 5B, the elastic sealing portion 220 is fixed to the support portion 210, forming part of the valve component 200. However, those skilled in the art will readily understand that in some embodiments, the elastic sealing portion 220 can be fixed to the valve seat 100 (for example, the elastic sealing portion 220 can be an O-ring or annular sealing sheet, fixed to the valve seat 100, and surrounding the corresponding opening in a ring shape), without departing from the core spirit of the utility model described in this application.

[0063] As described above, the valve component 200 can close the corresponding opening when it is fitted onto the coupling surface surrounding the corresponding opening. As an example, the valve component 200 includes a movable sealing surface 230. The movable sealing surface 230 can couple with a coupling surface on a valve seat to close the corresponding opening. In some embodiments, the movable sealing surface 230 may include a plane, such as... Figure 1 As shown in Figure 5B. As an example, Figure 5C shows a schematic diagram of another valve component 200 provided according to an embodiment of this application. Referring to Figure 5C, in some embodiments, the movable sealing surface 230 may include a conical surface.

[0064] Continue to refer to Figure 1 and Figure 2A As previously described, valve 002 includes a plurality of movable valve components 200. Specifically, valve 002 may include a first pair of valve components and a second pair of valve components.

[0065] The first pair of valve components may include a first valve component 200a and a second valve component 200b. The first pair of valve components is linearly translatable along a first straight line L1, and is configured to control the opening and closing states of the first pair of openings. In some embodiments, the first pair of valve components is linearly translatable along the first straight line L1 between a first position and a second position. As an example, the first pair of valve components may both be located within the first main chamber 410.

[0066] The first valve member 200a may face the first opening A and is configured to control the opening and closing state of the first opening A. As an example, the first valve member 200a includes a first movable sealing surface Q1 that can be coupled to the first coupling surface P1 to close the first opening A. The first movable sealing surface Q1 may include a plane and / or a conical surface. The second valve member 200b may face the second opening B and is configured to control the opening and closing state of the second opening B. The second valve member 200b includes a second movable sealing surface Q2 that can be coupled to the second coupling surface P2 to close the second opening B. The second movable sealing surface Q2 may include a plane and / or a conical surface.

[0067] As an example, Figure 2B shows a schematic diagram of a first opening A being opened according to an embodiment of this application. Referring to Figure 2B, after the first opening A is opened, it communicates with the fifth opening E, and the valve 002 forms a first flow channel 810. The first flow channel 810 may include a first transverse segment 811. The distance Δ1 between the first coupling surface and the first movable sealing surface on a first straight line L1 limits the size of the flow cross section of the first transverse segment 811. In some embodiments, the first flow channel 810 may further include a first longitudinal segment 812. In a direction perpendicular to the first straight line L1, a first gap W1 is formed between the outer edge of the first valve member 200a and the inner wall surface of the valve seat 100 to form the first longitudinal segment 812. In some embodiments, the first flow channel may further include a first free segment 813, which is defined by the first main chamber 410.

[0068] As an example, Figure 2B shows a schematic diagram of a second opening B being opened according to an embodiment of this application. Referring to Figure 2B, after the second opening B is opened, it communicates with the fifth opening E, and the valve 002 forms a second flow channel 820. The second flow channel 820 may include a second transverse segment 821. The distance Δ2 between the second coupling surface and the second movable sealing surface on the first straight line L1 limits the size of the flow cross section of the second transverse segment 821. In some embodiments, the second flow channel 820 may further include a second longitudinal segment 822. In a direction perpendicular to the first straight line L1, the outer edge of the second valve member 200b has a second gap W2 with the inner wall surface of the valve seat 100 to form the second longitudinal segment 822. In some embodiments, the second flow channel 820 may further include a second free segment 823, which is defined by the first main chamber 410.

[0069] The second pair of valve components may include a third valve component 200c and a fourth valve component 200d. The second pair of valve components (200c, 200d) and the first pair of valve components (200a, 200b) are mechanically separated and isolated. The second pair of valve components is linearly translatable along a second straight line L2 and is configured to control the opening and closing state of the second pair of openings. In some embodiments, the second pair of valve components is linearly translatable along the second straight line L2 between a third position and a fourth position. As an example, the second pair of valve components may both be within the second main chamber 420. The third valve component 200c may be directly opposite the third opening C and is configured to control the opening and closing state of the third opening C. The third valve component 200c includes a third movable sealing surface Q3 that can be coupled to the third coupling surface P3 to close the third opening C. The third movable sealing surface Q3 may include a plane and / or a conical surface. The fourth valve component 200d may be directly opposite the fourth opening D and is configured to control the opening and closing state of the fourth opening D. The fourth valve component 200d includes a fourth movable sealing surface Q4 that can be coupled to the fourth coupling surface P4 to close the fourth opening D. The fourth movable sealing surface Q4 may include a plane and / or a conical surface.

[0070] As an example, Figure 2B shows a schematic diagram of a third opening C being opened according to an embodiment of this application. Referring to Figure 2B, after the third opening C is opened, it communicates with the sixth opening F, and the valve 002 forms a third flow channel 830. The third flow channel 830 may include a third transverse segment 831. The distance Δ3 between the third coupling surface and the third movable sealing surface on the second straight line L2 limits the size of the flow cross section of the third transverse segment 831. In some embodiments, the third flow channel 830 may also include a third longitudinal segment 832. In a direction perpendicular to the second straight line L2, a third gap W3 is formed between the outer edge of the third valve member 200c and the inner wall surface of the valve seat 100 to form the third longitudinal segment 832. In some embodiments, the third flow channel 830 may also include a third free segment 833, which is defined by the second main chamber 420.

[0071] As an example, Figure 2B shows a schematic diagram of a fourth opening D being opened according to an embodiment of this application. Referring to Figure 2B, after the fourth opening D is opened, it communicates with the sixth opening F, and the valve 002 forms a fourth flow channel 840. The fourth flow channel 840 may include a fourth transverse segment 841. The distance Δ4 between the fourth coupling surface and the fourth movable sealing surface on the second straight line L2 limits the size of the flow cross section of the fourth transverse segment 841. In some embodiments, the fourth flow channel 840 may further include a fourth longitudinal segment 842. In a direction perpendicular to the second straight line L2, a fourth gap W4 is formed between the outer edge of the fourth valve member 200d and the inner wall surface of the valve seat 100 to form the fourth longitudinal segment 842. In some embodiments, the fourth flow channel 840 may further include a fourth free segment 843, which is defined by the second main chamber 420.

[0072] The first linear drive device 510 provides power for the linear translation of the first pair of valve components, and the first linear drive device 510 can drive the first pair of valve components to translate linearly along the first straight line L1. As an example, the first linear drive device 510 may include, but is not limited to, a voice coil motor, a linear electromagnet, a linear motor, or a device that converts rotary drive into linear drive by a motion conversion device (such as a cam push rod, a connecting rod slider, etc.) and a rotary motor.

[0073] The second linear drive device 520 provides power for the linear translation of the second pair of valve components. The second linear drive device 520 can drive the second pair of valve components to translate linearly along the second straight line L2. As an example, the second linear drive device 520 may include, but is not limited to, a voice coil motor, a linear electromagnet, a linear motor, or a device that converts rotary drive into linear drive by a motion conversion device (e.g., a cam push rod, a connecting rod slider, etc.) and a rotary motor.

[0074] In some embodiments, the first linear drive device 510 is located outside the first main chamber 410, and the second linear drive device 520 is located outside the second main chamber 420. In some embodiments, the first linear drive device 510 and the second linear drive device 520 may be located outside the valve seat 100, driving the valve component located within the valve seat 100 to translate linearly via a rod / axis passing through the valve seat 100. (Reference) Figure 1 and Figure 2AAs an example, the first pair of valve components can be fixed to the first rod 310. The first valve component 200a and the second valve component 200b are spaced apart along the first rod 310 and fixed relative to it. Driven by the first linear drive device 510, the first pair of valve components (200a, 200b) move synchronously along the first straight line L1, synchronously controlling the opening and closing states of the first pair of openings (A, B). The second pair of valve components can be fixed to the second rod 320. The third valve component 200c and the fourth valve component 200d are spaced apart along the second rod 320 and fixed relative to it. Driven by the second linear drive device 520, the second pair of valve components (200c, 200d) move synchronously along the second straight line L2, synchronously controlling the opening and closing states of the second pair of openings (C, D).

[0075] In some embodiments, the first rod 310 is at least partially located within the first main chamber 410; the second rod 320 is at least partially located within the second main chamber 420. As an example, one end of the first rod 310 extends out of the first main chamber 410 via one of the first pair of openings to connect to a first linear drive 510 located outside the first main chamber 410. For example... Figure 1 As shown in Figure -2, the lower end of the first rod 310 extends out of the first main chamber 410 via the second opening B and connects to the first linear drive device 510. The first drive device 510 drives the first pair of valve components to move via the first rod 310. As an example, one end of the second rod 320 extends out of the second main chamber 420 via one of the second pair of openings to connect to the second linear drive device 520 located outside the second main chamber 420. For example... Figure 1 As shown in Figure 2, the lower end of the second rod 320 extends out of the second main chamber 420 via the fourth opening D and is connected to the second linear drive device 520. The second drive device 510 drives the second pair of valve components to move via the second rod 310.

[0076] In some embodiments, the first rod 310 may include two segments that are detachably connected. The first segment may be the output shaft of the first linear drive device 510, with the first valve component 200a and the second valve component 200b fixed to the second segment. This facilitates machining and installation. As an example, the detachable connection is a threaded connection. In some embodiments, the second rod 320 may also include two segments, the structure of which is similar to that of the first rod 310; for simplicity, this will not be described in detail here.

[0077] In some embodiments, valve 002 may further include a first additional force application module 710. The first additional force application module 710 may apply a first additional force F1 along the first straight line L1 to the first pair of valve members that is monotonic with the position x1 of the first pair of valve members (i.e., the first additional force F1 is a monotonic function of the position x1 of the first pair of valve members) to improve controllability and switching speed. As an example, the first additional force application module 710 may include a spring.

[0078] In some embodiments, valve 002 may further include a second additional force application module 720. The second additional force application module 720 may apply a second additional force F2 along a second straight line L2 to the second pair of valve members that is monotonically related to the position x2 of the second pair of valve members (i.e., the second additional force F2 is a monotonic function of the position x2 of the second pair of valve members) to improve controllability and switching speed. As an example, the second additional force application module 720 may include a spring.

[0079] As previously described, the first pair of valve components (200a, 200b) can be linearly translated along the first straight line L1 between the first position and the second position, and the second pair of valve components (200c, 200d) can be linearly translated along the second straight line L2 between the third position and the fourth position. As an example, the auxiliary expectoration device 001 controls its operating state by adjusting the parameters of the linear translation of the first pair of valve components 201 and / or the parameters of the linear translation of the second pair of valve components 202, thereby enabling the valves 002 to form different pathways. As an example, the parameters may include, but are not limited to, the direction, speed, displacement, and reciprocating frequency of the linear translation. As an example, the first pair of valve components 201 and the second pair of valve components 202 can control the valves 002 to form a first pathway and a second pathway during the blowing phase, connecting the patient interface and the fan outlet air path, generating positive pressure at the patient interface. As an example, the first pair of valve components 201 and the second pair of valve components 202 can control valve 002 to form a third passage and a fourth passage during the discharge phase, connecting the patient interface and the fan inlet air passage, and generating negative pressure at the patient interface.

[0080] As an example, Figures 6A and 6B show schematic diagrams of two operating states of the valve 002 provided according to an embodiment of this application. The positions of the first pair of valve components and the second pair of valve components will now be described with reference to the schematic diagrams provided in Figures 6A and 6B.

[0081] Figure 6A shows the first position of the first pair of valve components (200a, 200b). In the first position, the first valve component 200a closes the first opening A, and the distance between the second valve component 200b and the second opening B on the first straight line L1 is greater than zero to allow fluid passage. Specifically, the first movable sealing surface couples with the first coupling surface to close the first opening, and the distance between the second movable sealing surface and the second coupling surface on the first straight line is greater than zero, causing the second opening to open. In the first position, the second opening B and the fifth opening E are in fluid communication with each other.

[0082] Figure 6B shows the second position of the first pair of valve components. In the second position, the second valve component 200b closes the second opening B, and the distance between the first valve component 200a and the first opening A on the first straight line L1 is greater than zero to allow fluid passage. Specifically, the second movable sealing surface couples with the second coupling surface to close the second opening, and the distance between the first movable sealing surface and the first coupling surface on the first straight line is greater than zero, causing the first opening to open. In the second position, the first opening A and the fifth opening E are in fluid communication with each other.

[0083] Figure 6A shows the fourth position of the second pair of valve members (200c, 200d). In this fourth position, the fourth valve member 200d closes the fourth opening D, and the distance between the third valve member 200c and the third opening C on the second straight line L2 is greater than zero to allow fluid passage. Specifically, the fourth movable sealing surface couples with the fourth coupling surface to close the fourth opening, and the distance between the third movable sealing surface and the third coupling surface on the second straight line is greater than zero, causing the third opening to open. In this fourth position, the third opening C and the sixth opening F are in fluid communication with each other.

[0084] Figure 6B shows the third position of the second pair of valve components (200c, 200d). In this third position, the third valve component 200c closes the third opening C, and the distance between the fourth valve component 200d and the fourth opening D on the second straight line L2 is greater than zero to allow fluid passage. Specifically, the third movable sealing surface couples with the third coupling surface to close the third opening, and the distance between the fourth movable sealing surface and the fourth coupling surface on the second straight line is greater than zero, causing the fourth opening to open. In this third position, the fourth opening D and the sixth opening F are in fluid communication with each other.

[0085] As described above, when the first pair of valve components is in the first position or the second position, one of the first pair of valve components closes one of the first pair of openings, and the distance between the other of the first pair of valve components and the other of the first pair of openings on the first straight line is greater than zero to allow fluid to pass through; when the second pair of valve components is in the third position or the fourth position, one of the second pair of valve components closes one of the second pair of openings, and the distance between the other of the second pair of valve components and the other of the second pair of openings on the second straight line is greater than zero to allow fluid to pass through.

[0086] Valve 002 is particularly suitable for use in assisted expectoration devices. Figure 6A shows a schematic diagram of the air path of a valve according to an embodiment of this application during the discharge phase, and Figure 6B shows a schematic diagram of the air path of a valve according to an embodiment of this application during the inhalation phase. The first opening A and the third opening C are connected to the atmosphere. The second opening B and the fourth opening D are connected to the patient's air path. The fifth opening E is connected to the fan inlet 910, and the sixth opening F is connected to the fan outlet 920.

[0087] As an example, the assisted expectoration device 001 can simultaneously control the distance Δ1 between the first opening A and the first valve component 200a on the first straight line L1, the distance Δ2 between the second opening B and the second valve component 200b on the first straight line L1, the distance Δ3 between the third opening C and the third valve component 200c on the second straight line L2, and the distance Δ4 between the fourth opening D and the fourth valve component 200d on the second straight line L2, further controlling the direction, velocity, and / or pressure of the airflow at the patient interface.

[0088] Figure 6A shows the positions of the first and second pairs of valve components corresponding to the discharge phase. In the discharge phase shown in Figure 6A, the first pair of valve components is in the first position, with the first opening A completely closed and the second opening B and fifth opening E connected. The second pair of valve components is in the fourth position, with the fourth opening D completely closed and the third opening C and sixth opening F connected. Therefore, negative pressure at the fan inlet 910 can be applied to the patient's airway via the fifth opening E and the second opening B, and the gas discharged from the fan outlet 920 can be discharged to the atmosphere via the sixth opening F and the third opening C.

[0089] Figure 6B shows the positions of the first and second pairs of valve components corresponding to the blow-in phase. In the blow-in phase shown in Figure 6B, the first pair of valve components is in the second position, with the first opening A and the fifth opening E connected; the second pair of valve components is in the third position, with the fourth opening D and the sixth opening F connected. Therefore, the fan can draw air from the atmosphere through the first opening A and the fifth opening E, and atmospheric air flows into the fan inlet 910 through the first opening A and the fifth opening E. Positive pressure at the fan outlet 920 can be applied to the patient's airway through the sixth opening F and the fourth opening D.

[0090] Oscillations in pressure and airflow can also be superimposed during the inhalation and / or exhalation phases to loosen secretions in the patient's airway. As an example, Figure 7A shows a schematic diagram of superimposed oscillations during the exhalation phase according to an embodiment of this application. As shown in Figure 7A, the second pair of valve members oscillates between the fourth position shown in Figure 6A and a position slightly towards the third position (shown by dashed lines), causing a change in pressure applied to the patient port. Of course, in some embodiments, the first pair of valve members can also oscillate between the first position shown in Figure 6A and a position slightly towards the second position to cause a change in pressure applied to the patient port. The superposition of oscillations during the inhalation phase is similar to that during the exhalation phase and will not be described further here for simplicity.

[0091] Combination Figure 1-7 and as described above, the distance (Δ1) between the first coupling surface and the first movable sealing surface on the first straight line determines the extent to which the first opening A is opened; the distance (Δ2) between the second coupling surface and the second movable sealing surface on the first straight line determines the extent to which the second opening B is opened; the distance (Δ3) between the third coupling surface and the third movable sealing surface on the second straight line determines the extent to which the third opening C is opened; and the distance (Δ4) between the fourth coupling surface and the fourth movable sealing surface on the second straight line determines the extent to which the fourth opening D is opened. The extent to which the four openings A / B / C / D are opened determines the working state of the auxiliary coughing device (including but not limited to blowing in / expelling / oscillating / ...). In some embodiments, the sum of the distance (Δ1) between the first coupling surface and the first movable sealing surface on the first straight line and the distance (Δ2) between the second coupling surface and the second movable sealing surface on the first straight line is constant (Δ1 + Δ2 = Δ0, where Δ0 is a constant value). In some embodiments, the sum of the distance (Δ3) between the third coupling surface and the third movable sealing surface on the second straight line and the distance (Δ4) between the fourth coupling surface and the fourth movable sealing surface on the second straight line is constant (Δ3 + Δ4 = Δ0', where Δ0' is a constant value). This allows the first linear drive device to synchronously control the opening extent of the first opening A and the second opening B, and the second linear drive device to synchronously control the opening extent of the third opening C and the fourth opening D, resulting in high controllability.

[0092] In some embodiments, the first and second lines are parallel and not collinear, such as... Figure 1 As shown in Figure 7. This approach simplifies the valve's structure, optimizes its layout, reduces its size, and improves controllability. However, those skilled in the art will readily understand that in some embodiments, the first and second straight lines may not be parallel (rather than perpendicular), or they may be collinear, without departing from the core spirit of the utility model described in this application.

[0093] In some embodiments, the first pair of valve members are perpendicular to the first straight line, and the second pair of valve members are perpendicular to the second straight line, such as... Figure 1 As shown in Figure 7. This design maximizes the strength and structural integrity of the valve, resulting in a simple, compact, and highly controllable structure. However, those skilled in the art will readily understand that in some embodiments, the first pair of valve components may not be perpendicular to the first straight line (e.g., the valve components corresponding to the openings shown in Figures 3C or 3F) without departing from the core spirit of the present invention, and the second pair of valve components may not be perpendicular to the second straight line (e.g., the valve components corresponding to the openings shown in Figures 3C or 3F) without departing from the core spirit of the present invention.

[0094] As previously described, the valve seat 100 may include a first coupling surface surrounding the first opening A, a second coupling surface surrounding the second opening B, a third coupling surface surrounding the third opening C, and a fourth coupling surface surrounding the fourth opening D. The first valve component includes a first movable sealing surface that can couple with the first coupling surface to close the first opening; the second valve component includes a second movable sealing surface that can couple with the second coupling surface to close the second opening; the third valve component includes a third movable sealing surface that can couple with the third coupling surface to close the third opening; and the fourth valve component includes a fourth movable sealing surface that can couple with the fourth coupling surface to close the fourth opening. In some embodiments, the first and second movable sealing surfaces are perpendicular to the first straight line, and the third and fourth movable sealing surfaces are perpendicular to the second straight line. This design allows for a better force-bearing structure, simpler structure, smaller size, and higher controllability of the valve. However, those skilled in the art will readily understand that in some embodiments, the first movable sealing surface and the second movable sealing surface may not be perpendicular to the first straight line without departing from the core spirit of the present invention, and the third movable sealing surface and the fourth movable sealing surface may not be perpendicular to the second straight line without departing from the core spirit of the present invention.

[0095] In some embodiments, the first main chamber and the second main chamber are identical in shape and size. This results in high valve controllability, a simpler structure, and lower cost. Of course, those skilled in the art will recognize that in some embodiments, the first main chamber and the second main chamber may have different shapes and / or sizes without departing from the core spirit of this application.

[0096] In some embodiments, the first opening, the second opening, the third opening, and the fourth opening are all identical in shape and size. This results in high valve controllability, a simpler structure, and lower cost. Of course, those skilled in the art will recognize that in some embodiments, the first opening, the second opening, the third opening, and the fourth opening may have different shapes and / or sizes without departing from the core spirit of this application.

[0097] In some embodiments, the first pair of valve components and / or the second pair of valve components may be selectively disposed inside or outside the corresponding main chamber to improve valve controllability. As an example, Figures 8A-8C show schematic diagrams of three valves provided according to embodiments of this application. Referring to Figure 8A, in some embodiments, the first pair of valve components are both outside the first main chamber, and the second pair of valve components are both outside the second main chamber. Referring to Figure 8B, in some embodiments, the first pair of valve components are both outside the first main chamber, and the second pair of valve components are both inside the second main chamber. Referring to Figure 8C, in some embodiments, the first pair of valve components are both inside the first main chamber, and the second pair of valve components are both outside the second main chamber.

[0098] Regardless of whether the first pair of valve components and / or the second pair of valve components are inside or outside the corresponding main chamber, as described above, the furthest possible movement of the first pair of valve components (200a, 200b) and the second pair of valve components (200c, 200d) is limited by the wall of the corresponding main chamber. When the valve component pair is outside the main chamber, the furthest possible movement is limited by the outer wall of the main chamber. When the valve component pair is inside the main chamber, the furthest possible movement is limited by the inner wall of the main chamber.

[0099] As previously described, the first pair of valve components can be linearly translated along a first straight line between a first position and a second position. The first position is the farthest position the first pair of valve components can move in one direction along the first straight line, and the second position is the farthest position the first pair of valve components can move in the opposite direction along the first straight line. When both the first pair of valve components are inside the first main chamber, the inner wall of the first main chamber defines the first and second positions of the first pair of valve components. When both the first pair of valve components are outside the first main chamber, the outer wall of the first main chamber defines the first and second positions of the first pair of valve components. For ease of understanding, it is necessary to define "stroke" in the following description of this application. According to the valve described in this application, "stroke" refers to the maximum distance that can be moved. Reference Figure 2A The stroke S1 of the first pair of valve components along the first straight line is also the displacement of the first pair of valve components when moving from the first position to the second position; the stroke S2 ​​of the second pair of valve components along the second straight line is also the displacement of the second pair of valve components when moving from the third position to the fourth position. In some embodiments, the stroke S1 of the first pair of valve components along the first straight line is not less than 3 mm. In some embodiments, the stroke S2 ​​of the second pair of valve components along the second straight line is not less than 3 mm. This achieves a balance between rapid switching of valve component positions and larger flow rates.

[0100] In some embodiments, the travel S1 of the first pair of valve members along the first straight line and the travel S2 of the second pair of valve members along the second straight line are equal. This simplifies the valve structure and reduces costs. Of course, those skilled in the art will recognize that in some embodiments, the travel S1 of the first pair of valve members along the first straight line and the travel S2 of the second pair of valve members along the second straight line may not be equal without departing from the core spirit of this application.

[0101] As previously described, the inner or outer wall surface of the first main chamber in the first straight direction defines the first and second positions, and the inner or outer wall surface of the second main chamber in the second straight direction defines the third and fourth positions. In some embodiments, the height of the first main chamber along the first straight line is not less than 12 mm. In some embodiments, the height of the second main chamber along the second straight line is not less than 12 mm. This allows for a balance between rapid switching of valve component positions and larger flow rates.

[0102] As mentioned earlier, the dimensions of the valve components (200a, 200b, 200c, 200d) must be larger than the dimensions of the openings (A, B, C, D) to allow the openings (A, B, C, D) to be closed. If the width of the main chamber is too small, the clearance between the valve components and the inner wall of the main chamber will be too small, reducing the size of the flow passage. (Reference) Figure 2A Taking the second valve component 200b as an example, the distance W between the outer edge of the second valve component 200b and the inner wall of the first main chamber 410 in the direction perpendicular to the first straight line L1. If W is too small, it will affect the flow rate of fluid from opening B to opening E, adversely affecting the switching speed. In some embodiments, to improve the switching speed and response speed of the valve, the width of the first main chamber in the direction perpendicular to the first straight line is not less than 30 mm. Similar to the first main chamber, in some embodiments, the width of the second main chamber in the direction perpendicular to the second straight line is not less than 30 mm; the specific reasons will not be elaborated further.

[0103] The area of ​​the opening affects its flow rate. In some embodiments, to improve the valve's switching speed and response speed, the areas of the first opening, the second opening, the third opening, and / or the fourth opening are not less than 100 mm². 2 .

[0104] The valve provided in this application features fast and precise switching, good controllability, fast response, good sealing, almost zero friction, small size, simple structure, short air path, high safety, and simple operation. It can comprehensively solve many technical problems existing in the prior art.

[0105] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this disclosure and are within the spirit and scope of the exemplary embodiments of this disclosure.

[0106] In the description of this disclosure, unless otherwise stated, the term “comprising” and its variations shall be understood as open-ended inclusion, i.e., “including but not limited to”; the term “based on” shall be understood as “at least partially based on”; and “ / ” means “or”.

[0107] Furthermore, certain terms used in this application have been used to describe embodiments of this disclosure. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this disclosure. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" or "alternative embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be suitably combined in one or more embodiments of this disclosure.

[0108] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations based on the embodiments in this application to implement the utility model in this application. Therefore, the embodiments of this application are not limited to those embodiments precisely described in the application.

Claims

1. A valve characterized by, Comprising: a valve seat comprising a plurality of openings; a first pair of valve members linearly translatable along a first straight line and configured to control opening and closing states of a first pair of openings; and a second pair of valve members linearly translatable along a second straight line and configured to control opening and closing states of a second pair of openings. The first pair of valve members is linearly translatable along the first straight line between a first position and a second position, and the second pair of valve members is linearly translatable along the second straight line between a third position and a fourth position, wherein:

2. The valve of claim 1, wherein when the first pair of valve members is at the first position or the second position, one of the first pair of valve members closes one of the first pair of openings, and a distance between the other of the first pair of valve members and the other of the first pair of openings on the first straight line is greater than zero to allow fluid to pass through; when the second pair of valve members is at the third position or the fourth position, one of the second pair of valve members closes one of the second pair of openings, and a distance between the other of the second pair of valve members and the other of the second pair of openings on the second straight line is greater than zero to allow fluid to pass through. The valve seat further comprises:

3. The valve of claim 1, wherein a first main chamber located between and communicating with the first pair of openings; and a second main chamber located between and communicating with the second pair of openings.

4. The valve of claim 3, wherein: the first pair of valve members are both outside the first main chamber and the second pair of valve members are both outside the second main chamber; the first pair of valve members are both outside the first main chamber and the second pair of valve members are both inside the second main chamber; the first pair of valve members are both inside the first main chamber and the second pair of valve members are both outside the second main chamber; or the first pair of valve members are both inside the first main chamber and the second pair of valve members are both inside the second main chamber.

5. The valve of claim 3, wherein: a height of the first main chamber along the first straight line is not less than 12 mm; and / or a height of the second main chamber along the second straight line is not less than 12 mm.

6. The valve of claim 3, wherein: a width of the first main chamber in a direction perpendicular to the first straight line is not less than 30 mm; and / or a width of the second main chamber in a direction perpendicular to the second straight line is not less than 30 mm. The plurality of openings comprises a first opening, a second opening, a third opening, and a fourth opening; the first pair of openings comprises the first opening and the second opening; and the second pair of openings comprises the third opening and the fourth opening.

7. The valve of claim 3 wherein, The first pair of valve members comprises: a first valve member directly opposite the first opening and configured to control an opening and closing state of the first opening, a second valve member directly opposite the second opening and configured to control an opening and closing state of the second opening; The second pair of valve members comprises: a third valve member directly opposite the third opening and configured to control an opening and closing state of the third opening, a fourth valve member directly opposite the fourth opening and configured to control an opening and closing state of the fourth opening. a fourth valve member, opposite to the fourth opening, configured to control an open / close state of the fourth opening.

8. The valve of claim 7, wherein: The area of the first opening is not less than 100 mm 2 ; The area of the second opening is not less than 100 mm 2 ; The area of the third opening is not less than 100 mm 2 ; and / or The area of the fourth opening is not less than 100 mm 2 .

9. The valve of claim 7, wherein the plurality of openings further comprises: a fifth opening, in communication with the first main chamber; and a sixth opening, in communication with the second main chamber.

10. The valve of claim 9, wherein: the first opening and the third opening are configured to communicate with atmosphere; the second opening and the fourth opening are configured to communicate with a patient gas circuit; the fifth opening is configured to connect to an inlet of a blower; the sixth opening is configured to connect to an outlet of the blower.

11. The valve of claim 7, wherein the valve seat further comprises: a first communication chamber, in communication with the first main chamber via the first opening, and in communication with the second main chamber via the third opening; and / or a second communication chamber, in communication with the first main chamber via the second opening, and in communication with the second main chamber via the fourth opening.

12. The valve of claim 11, wherein the plurality of openings further comprises: a patient port, via which the second communication chamber communicates with a patient gas circuit; an atmosphere port, via which the first communication chamber communicates with atmosphere.

13. The valve of claim 11, wherein the first main chamber and the second main chamber are between the first communication chamber and the second communication chamber.

14. The valve of claim 11, wherein: the first straight line and the second straight line are both in the direction of gravity; the first main chamber and the second main chamber are horizontally side by side.

15. The valve of claim 11, wherein: the first communication chamber is below the first main chamber and the second main chamber, and the second communication chamber is above the first main chamber and the second main chamber.

16. The valve of claim 7 wherein, the valve seat comprises a first coupling surface surrounding the first opening, a second coupling surface surrounding the second opening, a third coupling surface surrounding the third opening, a fourth coupling surface surrounding the fourth opening, the first valve member comprises a first movable sealing surface that can couple with the first coupling surface to close the first opening, the second valve member comprises a second movable sealing surface that can couple with the second coupling surface to close the second opening, the third valve member comprises a third movable sealing surface that can couple with the third coupling surface to close the third opening, the fourth valve member comprises a fourth movable sealing surface that can couple with the fourth coupling surface to close the fourth opening.

17. The valve of claim 16, wherein the movable sealing surface comprises: a flat surface; and / or a tapered surface.

18. The valve of claim 16, wherein: when the first movable sealing surface couples with the first coupling surface to close the first opening, a distance between the second movable sealing surface and the second coupling surface on the first straight line is greater than zero so that the second opening is open; when the second movable sealing surface couples with the second coupling surface to close the second opening, a distance between the first movable sealing surface and the first coupling surface on the first straight line is greater than zero so that the first opening is open. when the third movable sealing surface is coupled with the third coupling surface to close the third opening, the distance between the fourth movable sealing surface and the fourth coupling surface on the second straight line is greater than zero so that the fourth opening is open; when the fourth movable sealing surface is coupled with the fourth coupling surface to close the fourth opening, the distance between the third movable sealing surface and the third coupling surface on the second straight line is greater than zero so that the third opening is open.

19. The valve of claim 16, wherein: the sum of the distance (Δ1) between the first coupling surface and the first movable sealing surface on the first straight line and the distance (Δ2) between the second coupling surface and the second movable sealing surface on the first straight line is constant; the sum of the distance (Δ3) between the third coupling surface and the third movable sealing surface on the second straight line and the distance (Δ4) between the fourth coupling surface and the fourth movable sealing surface on the second straight line is constant.

20. The valve of claim 16, wherein: the first movable sealing surface and the second movable sealing surface are perpendicular to the first straight line; and / or the third movable sealing surface and the fourth movable sealing surface are perpendicular to the second straight line.

21. The valve of claim 7, wherein: the first main chamber and the second main chamber are identical in shape and size; the first opening, the second opening, the third opening, and the fourth opening are identical in shape and size.

22. The valve of claim 1 wherein, Further comprising: a first straight line driving device configured to drive the first pair of valve members to linearly translate along the first straight line; a second straight line driving device configured to drive the second pair of valve members to linearly translate along the second straight line.

23. The valve of claim 22, wherein Further comprising: a first additional force applying module configured to apply a first additional force to the first pair of valve members along the first straight line, the first additional force being in a monotonic relationship with the position of the first pair of valve members; and / or a second additional force applying module configured to apply a second additional force to the second pair of valve members along the second straight line, the second additional force being in a monotonic relationship with the position of the second pair of valve members.

24. The valve of claim 1, wherein: the first pair of valve members and the second pair of valve members are mechanically separated and apart.

25. The valve of claim 1, wherein: the first pair of openings are opposite to each other along the first straight line, and the second pair of openings are opposite to each other along the second straight line.

26. The valve of claim 1, wherein: the first straight line and the second straight line are parallel and not collinear.

27. The valve of claim 1 wherein, the valve members are plate-shaped, the first pair of valve members are perpendicular to the first straight line, and the second pair of valve members are perpendicular to the second straight line.

28. The valve of claim 1, wherein: the first pair of valve members are synchronously moved along the first straight line to synchronously control the opening and closing states of the first pair of openings; the second pair of valve members are synchronously moved along the second straight line to synchronously control the opening and closing states of the second pair of openings.

29. The valve of claim 1 wherein, The stroke (S1) of the first pair of valve members along the first straight line and the stroke (S2) of the second pair of valve members along the second straight line are equal.

30. The valve according to claim 1, wherein The stroke (S1) of the first pair of valve members along the first straight line is not less than 3 mm; and / or The stroke (S2) of the second pair of valve members along the second straight line is not less than 3 mm.

31. The valve of claim 1 wherein, The valve member comprises: a support portion; and an elastic sealing portion fixed to the support portion.

32. The valve according to claim 1, wherein The first pair of valve members is fixed to a first rod, which is at least partially within a first main chamber located between and communicating with the first pair of openings; and / or The second pair of valve members is fixed to a second rod, which is at least partially within a second main chamber located between and communicating with the second pair of openings.

33. The valve according to claim 32, wherein One end of the first rod protrudes out of the first main chamber via one of the first pair of openings to connect a first straight line driving device located outside the first main chamber; and / or One end of the second rod protrudes out of the second main chamber via one of the second pair of openings to connect a second straight line driving device located outside the second main chamber. ​

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