Disposable universal valve

Abstract

The embodiment of the utility model provides a disposable universal valve. The disposable universal valve comprises a base, a pressing assembly and an elastic piece. The base is provided with a cavity, a pumpback hole and at least two flow channels, the pumpback hole and the flow channels are communicated with the cavity, the pressing assembly is movably arranged on the base, and the elastic piece is arranged on the base and abuts against the base and the pressing assembly. When external force acts on the pressing assembly, the pressing assembly moves along the cavity, so that the cavity is communicated with the pumpback hole and the flow channel, and the deformation quantity of the elastic piece is increased. And when the external force is removed, the elastic piece recovers deformation, the pressing assembly is pushed to move and reset, and the withdrawing hole is separated from all the flow channels through the pressing assembly. The universal valve is provided with the pressing assembly, the pumpback hole can be communicated with the flow channel by pressing down the pressing assembly, liquid pumpback, exhaust, medicine dilution, tube flushing or blood sampling and other operations can be conveniently carried out, and the patient experience is improved.

Description

Technical Field

[0001] This application relates to the field of needle-free drug delivery technology, specifically to a disposable universal valve. Background Technology

[0002] Related technologies provide three-way valves, which typically have more than three ports. When liquid needs to flow along a required path, the valve's spool needs to be turned to adjust the fluid flow path. However, during clinical operations, operators may make operational errors, failing to turn the spool or turning it improperly, leading to incorrect path switching and the liquid not flowing along the required path, resulting in improper or unsafe operation. Utility Model Content

[0003] To address one of the aforementioned technical deficiencies, this application provides a disposable universal valve.

[0004] The present invention adopts the following technical solution:

[0005] A disposable universal valve, comprising:

[0006] A base having a cavity, a backflow hole, and at least two flow channels, wherein the backflow hole and each of the flow channels are connected to the cavity;

[0007] A pressing component is movably disposed on the base;

[0008] An elastic element is disposed on the base, and the elastic element abuts against the base and the pressing assembly respectively;

[0009] When an external force is applied to the pressing component, the pressing component moves along the cavity, so that the cavity connects the return hole and the flow channel, and the deformation of the elastic element increases;

[0010] When the external force is removed, the elastic element restores its deformation and pushes the pressing assembly to move and reset. The pressing assembly separates the pull-back hole from each flow channel.

[0011] Optionally, the pressing assembly includes a button and a check valve;

[0012] The button is movably mounted on the base, the elastic element is disposed between the base and the button, the check valve is disposed on the button, and the check valve is attached to the inner wall of the cavity;

[0013] When the button is moved under the action of an external force, the check valve can be moved to the side of the backflow hole away from the flow channel.

[0014] When the external force is removed, the button moves under the action of the elastic element, causing the check valve to move between the return hole and the flow channel.

[0015] Optionally, the pressing assembly includes a fixing member;

[0016] The fastener is connected to the button, and the fastener and the button clamp and secure the check valve.

[0017] Optionally, a slot is provided at one end of the button;

[0018] The fastener includes a shaft and a cap. The shaft is inserted into and fixed in the slot, and the cap and the button clamp the check valve.

[0019] Optionally, the base is provided with side holes;

[0020] The side hole connects to the cavity;

[0021] The check valve divides the cavity into an upper cavity and a lower cavity;

[0022] The flow channel is connected to the upper cavity;

[0023] The side hole connects to the lower cavity;

[0024] When the fluid pressure in the lower chamber is greater than the fluid pressure in the upper chamber, the check valve deforms, opening the connection between the upper and lower chambers.

[0025] Optionally, the flow channel, the pull-back hole, and the side hole are arranged sequentially along the pressing direction of the pressing assembly;

[0026] When an external force is applied to the button, the check valve can move between the side hole and the check valve;

[0027] When the external force is removed, the check valve resets and moves between the flow channel and the return hole.

[0028] Optionally, the base includes a base body, a top cover, and a sealing gasket, wherein the base body and the top cover are fixedly connected, and the cavity is formed between the base body and the top cover;

[0029] The button is slidably disposed on the upper cover and the base body;

[0030] The sealing gasket is fixed between the base body and the upper cover;

[0031] The sealing gasket is fitted onto the button, and the cavity includes an upper cavity formed between the check valve and the sealing gasket;

[0032] The flow channel is connected to the upper cavity;

[0033] When an external force is applied to the pressing component, the check valve moves, the volume of the upper cavity increases, and the pull-back hole connects to the upper cavity.

[0034] Optionally, the sealing gasket has an annular inner convex rib;

[0035] The annular inner convex rib elastically abuts against the outer wall of the button.

[0036] Optionally, a limiting groove is formed between the sealing gasket and the top cover;

[0037] The button has an outer flange, which is confined within the limiting groove, and the limiting groove restricts the range of motion of the button.

[0038] Optionally, the base has a pressing groove;

[0039] The pressing component has a cap;

[0040] The elastic element is disposed in the pressing groove and its two ends abut against the cap body and the bottom wall of the pressing groove, respectively.

[0041] By adopting the above technical solution, this application has the following beneficial effects:

[0042] The universal valve of this application has a pressing component. By pressing down on the pressing component, the return port is connected to the flow channel, changing the fluid flow trajectory and facilitating liquid return, venting, drug dilution, tubing flushing, or blood collection. This simplifies operation and improves the patient experience. When the pressing component is stopped, the universal valve returns to its original flow path. Operation is simple, reliability is high, and patient experience is further enhanced. Attached Figure Description

[0043] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0044] Figure 1 An exploded view of the disposable universal valve provided in an embodiment of this application is shown;

[0045] Figure 2 Show Figure 1 A sectional view;

[0046] Figure 3 A cross-sectional view of the sealing gasket provided in an embodiment of this application is shown;

[0047] Figure 4 This diagram shows a partial cross-sectional view of the disposable universal valve provided in an embodiment of this application.

[0048] In the diagram: 1. Base; 11. Base body; 111. Cavity; 1111. Upper cavity; 1112. Lower cavity; 112. Retraction hole; 113. Flow channel; 114. Side hole; 12. Top cover; 121. Pressing groove; 13. Sealing gasket; 131. Annular inner convex rib; 14. Limiting groove; 2. Pressing assembly; 21. Button; 211. Outer flange; 212. Cap body; 22. Check valve; 23. Fixing component; 3. Elastic component. Detailed Implementation

[0049] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0050] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] like Figures 1 to 4As shown in the figure, this application provides a disposable universal valve, including: a base 1, a pressing assembly 2, and an elastic element 3. The base 1 has a cavity 111, a pull-back hole 112, and at least two flow channels 113. The pull-back hole 112 and each of the flow channels 113 are connected to the cavity 111. The pull-back hole 112 can be considered as a flow channel, and the pull-back hole 112 is normally in a closed state. The pressing assembly 2 is movably disposed on the base 1, and the elastic element 3 is disposed on the base 1. The elastic element 3 abuts against the base 1 and the pressing assembly 2 respectively. When an external force is applied to the pressing assembly 2, the pressing assembly 2 moves along the cavity 111, so that the cavity 111 connects the pull-back hole 112 and the flow channels 113, and the deformation of the elastic element 3 increases. When the external force is removed, the elastic element 3 restores its deformation, pushes the pressing assembly 2 to move back to its original position, and the pressing assembly 2 separates the pull-back hole 112 from each flow channel 113.

[0054] The universal valve of this application has a pressing component 2. By pressing the pressing component 2, the return port 112 is connected to the flow channel 113, changing the fluid flow trajectory and facilitating liquid return, venting, drug dilution, tubing flushing, or blood collection. Operation is convenient. When the pressing component 2 is stopped, the universal valve returns to its original flow path. Operation is simple, reliability is high, and patient experience is improved.

[0055] In some possible implementations, the pressing assembly 2 includes a button 21 and a check valve 22. The button 21 is movably disposed on the base 1. The elastic element 3 is disposed between the base 1 and the button 21. The check valve 22 is disposed on the button 21 and is fitted against the inner wall of the cavity 111, with the periphery of the check valve 22 sealingly engaging with the inner wall of the cavity 111. Under external force, the button 21 moves, causing the check valve 22 to move to the side of the pull-back hole 112 away from the flow channel 113, thereby placing the pull-back hole 112 and the flow channel 113 on the same side of the check valve 22, and the cavity 111 connects the pull-back hole 112 and the flow channel 113. When the external force is removed, under the action of the elastic element 3, the button 21 moves, causing the check valve 22 to move between the pull-back hole 112 and the flow channel 113 (including the case where the check valve 22 covers the pull-back hole 112). Figure 4 As shown, check valve 22 separates flow channel 113 from backflow hole 112.

[0056] In some possible implementations, the pressing component 2 includes a fixing member 23 connected to the button 21. The fixing member 23 and the button 21 clamp and fix the check valve 22. The check valve 22 is an elastic member 3. The clamping and fixing of the check valve 22 is achieved by the cooperation of the fixing member 23 and the button 21.

[0057] In some possible implementations, one end of button 21 is provided with a slot, and a fastener similar to a bolt is provided. The fastener 23 includes a shaft and a cap, the shaft being inserted into and fixed in the slot, and the cap and button 21 clamping the check valve 22. The shaft can be threaded or interference-fitted to the slot.

[0058] In some possible implementations, such as Figure 4 As shown, a side hole 114 is provided on the base 1, which connects to the cavity 111. The check valve 22 divides the cavity 111 into an upper cavity 1111 and a lower cavity 1112. The flow channel 113 connects to the upper cavity 1111, and the side hole 114 connects to the lower cavity 1112. When the fluid pressure in the lower cavity 1112 is greater than the fluid pressure in the upper cavity 1111, the check valve 22 deforms, opening the connection between the upper cavity 1111 and the lower cavity 1112. The side hole 114 facilitates intermittent drug administration. The side hole 114, which connects to the lower cavity 1112, is separated from the flow channel 113 by the check valve 22 and is normally in an open state. When drug administration is required, a drug administration device can be connected to increase the liquid pressure in the lower cavity 1112, causing the check valve to deform and open, thus connecting the upper cavity 1111 and the lower cavity 1112, allowing the drug to be smoothly added to the upper cavity 1111.

[0059] In some possible implementations, the flow channel 113, the return hole 112, and the side hole 114 are arranged sequentially along the pressing direction of the pressing assembly. When an external force is applied to the button 21, the check valve 22 can move between the side hole 114 and the check valve 22. When the external force is removed, the check valve 22 resets and moves between the flow channel 113 and the return hole 112.

[0060] In some possible implementations, the disposable universal valve includes a sealing gasket 13, and the base 1 includes a base body 11 and a top cover 12, the base body 11 and the top cover 12 being fixedly connected, forming a cavity 111 between the base body 11 and the top cover 12. A button 21 is slidably disposed on the top cover 12 and the base body 11. Figure 4 As shown, the sealing gasket 13 is fixed between the base body 11 and the upper cover 12, and the sealing gasket 13 is sealed and fitted onto the button 21. The cavity 111 includes an upper cavity 1111 formed between the check valve 22 and the sealing gasket 13. The flow channel 113 communicates with the upper cavity 1111. When an external force is applied to the pressing assembly 2, the check valve 22 moves, the volume of the upper cavity 1111 increases, and the pull-back hole 112 communicates with the upper cavity 1111, thus realizing the communication between the pull-back hole 112 and the flow channel 113.

[0061] The sealing gasket 13 is designed to seal the top side of the cavity 111, preventing liquid leakage from the top. An upper cavity 1111 is formed between the check valve 22 and the sealing gasket 13, and the flow channel 113 remains in communication with the upper cavity 1111.

[0062] It should be noted that a connecting nozzle can be connected to the base 1. The pull-back hole 112 and the side hole 114 are both located inside the connecting nozzle, which facilitates connection to an external pull-back device or dosing device.

[0063] In some possible implementations, the sealing gasket 13 has an annular inner rib 131 that elastically abuts against the outer wall of the button 21, thereby achieving a good sealing effect and preventing liquid from seeping out along the outer surface of the button 21.

[0064] In some possible implementations, such as Figure 4 As shown, a limiting groove 14 is formed between the sealing gasket 13 and the upper cover 12. The button 21 has an outer flange 211, which is located within the limiting groove 14. The limiting groove 14 restricts the range of motion of the button 21.

[0065] In some possible implementations, such as Figure 4 As shown, the base 1 has a pressing groove 121, the pressing assembly 2 has a cap 212, and an elastic element 3 is disposed in the pressing groove 121 with its two ends abutting against the cap 212 and the bottom wall of the pressing groove 121, respectively. The elastic element 3 can be a rebound pad, sleeved around the periphery of the button 21, to provide the button 21 with a rebound force.

[0066] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0067] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0068] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A disposable universal valve characterized by, The application relates to a base, a pressing assembly movably arranged on the base, and an elastic member arranged on the base and abutting against the base and the pressing assembly. When an external force acts on the pressing assembly, the pressing assembly moves along the cavity, so that the cavity communicates with the backflow hole and the flow channel, and the deformation amount of the elastic member increases. When the external force is removed, the elastic member restores the deformation and pushes the pressing assembly to move back to the original position, and the pressing assembly separates the backflow hole from the flow channel. The pressing assembly comprises a button and a check valve. The button is movably arranged on the base, the elastic member is arranged between the base and the button, the check valve is arranged on the button, and the check valve is attached to the inner wall of the cavity. When the external force acts on the button, the button moves and drives the check valve to move to the side of the backflow hole away from the flow channel.

2. The disposable manifold valve of claim 1, wherein, When the external force is removed, the button moves under the action of the elastic member and drives the check valve to move between the backflow hole and the flow channel. The pressing assembly comprises a fixing member. The fixing member is connected to the button, and the fixing member and the button clamp the check valve. One end of the button is provided with a slot.

3. The disposable manifold valve of claim 2, wherein, The fixing member comprises a shaft body and a cap head, the shaft body is inserted into and fixed in the slot, and the cap head clamps the check valve together with the button. The base is provided with a side hole.

4. The disposable manifold valve of claim 3, wherein, The side hole communicates with the cavity. The check valve divides the cavity into an upper cavity and a lower cavity.

5. The disposable manifold valve of claim 2, wherein, The flow channel communicates with the upper cavity. The side hole communicates with the lower cavity. When the fluid pressure in the lower cavity is greater than that in the upper cavity, the check valve deforms and guides the upper cavity and the lower cavity. The flow channel, the backflow hole and the side hole are sequentially arranged along the pressing direction of the pressing assembly. When the external force acts on the button, the check valve can move to the side of the side hole and the check valve. When the external force is removed, the check valve resets and moves between the flow channel and the backflow hole.

6. The disposable manifold valve of claim 5, wherein, The base comprises a base body, an upper cover and a sealing gasket, the base body and the upper cover are fixedly connected, and the base body and the upper cover form the cavity. The button is slidably arranged on the upper cover and the base body. The sealing gasket is fixed between the base body and the upper cover.

7. The disposable manifold valve of claim 2, wherein, The sealing gasket seals the button, and the cavity comprises an upper cavity formed between the check valve and the sealing gasket. The flow channel communicates with the upper cavity. When the external force acts on the pressing assembly, the check valve moves, the volume of the upper cavity increases, and the backflow hole communicates with the upper cavity. The sealing gasket has an annular inner convex rib. The annular inner convex rib elastically abuts against the outer wall of the button. The sealing gasket and the upper cover form a limiting groove.

8. The disposable manifold valve of claim 7, wherein, The button has an outer flange, the outer flange is limited in the limiting groove, and the limiting groove limits the movement range of the button. The base has a pressing groove.

9. The disposable manifold valve of claim 7, wherein, The pressing assembly has a cap body. ​ 10. The disposable manifold valve according to any one of claims 1-9, wherein, ​ ​ The elastic member is arranged in the pressing groove and two ends of the elastic member abut against the cap body and the bottom wall of the pressing groove respectively.

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