Extensible array type coaxial electrospinning needle plate device

Abstract

The utility model discloses an extensible array type coaxial electrospinning needle plate device. The extensible array type coaxial electrospinning needle plate device comprises a module stand and a plurality of module supporting plates arranged on the top of the module stand. A plurality of electrospinning assemblies are arranged at the top of the module supporting plate, each electrospinning assembly comprises a bottom plate and a needle plate arranged at the top of the bottom plate, a plurality of Luer tapers are arranged at the top of each needle plate in an array mode, and coaxial needle heads are arranged at the tops of the Luer tapers; an inner needle solution area is arranged in the middle of the bottom of the needle plate, and outer needle solution areas are symmetrically arranged on the two sides of the inner needle solution area. The coaxial needle head comprises an inner needle tube and an outer needle tube, the inner needle tube is communicated with the inner needle solution area, one side of the outer needle tube is connected with a liquid supply tube, the side wall of the needle plate is connected with a side liquid supply needle head, and the side liquid supply needle head is connected to the outer needle solution area; an inner needle solution area and an outer needle solution area are completely isolated, flow and pressure are independently controlled, different material characteristics are compatible, an outer needle solution is laterally supplied, cross contamination of the outer needle solution and an inner needle solution is avoided, the assembly process is simplified, a sealing gasket is matched for sealing, and the liquid leakage risk is eradicated.

Description

Technical Field

[0001] This utility model relates to the field of electrospinning technology, specifically to an expandable array-type coaxial electrospinning needle plate device. Background Technology

[0002] Electrospinning technology, as a highly efficient method for preparing nanofibers, is widely used in various fields. However, most electrospinning equipment currently on the market is limited to spinning single materials, exhibiting poor compatibility with multiple materials, especially difficult-to-spin materials. Coaxial electrospinning technology, by spraying different materials through inner and outer needles, greatly improves material compatibility and the diversity of composite methods. However, the existing coaxial electrospinning needles have complex manufacturing processes and poor scalability, limiting their industrial application.

[0003] The shortcomings of existing technology:

[0004] Single material limitation: Currently, mainstream electrospinning equipment is mainly used for spinning single materials, which makes it difficult to meet the preparation needs of composite materials or difficult-to-spin materials.

[0005] Poor scalability: Most existing coaxial electrospinning needles are single-unit or simply replicated multi-unit structures, which cannot flexibly expand the array size, making it difficult to scale up production.

[0006] Complex manufacturing process: Coaxial needles require precision machining of both inner and outer needles, and the liquid supply system is complex, resulting in high costs and difficult maintenance, which limits industrial application. Utility Model Content

[0007] The purpose of this invention is to provide an expandable array-type coaxial electrospinning needle plate device to solve the problems in the prior art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: an expandable array-type coaxial electrospinning needle plate device, comprising: a module frame and multiple module trays disposed on the top of the module frame; multiple electrospinning components are disposed on the top of the module trays, each electrospinning component including a base plate and a needle plate disposed on the top of the base plate, multiple Luer connectors are arrayed on the top of the needle plate, and coaxial needles are disposed on the top of the Luer connectors;

[0009] An inner needle solution area is provided at the middle position of the bottom of the needle plate, and outer needle solution areas are symmetrically arranged on both sides of the inner needle solution area;

[0010] The coaxial needle includes an inner needle tube and an outer needle tube. The inner needle tube is connected to the solution area of ​​the inner needle. A supply tube is connected to one side of the outer needle tube. A side supply needle is connected to the side wall of the needle plate. The side supply needle is connected to the solution area of ​​the outer needle. One end of the supply tube is connected to the side supply needle.

[0011] In one preferred embodiment, a conductive metal sheet is provided at one end of the base plate, and an inner needle solution inlet is provided at the middle position of the conductive metal sheet, the inner needle solution inlet being connected to the inner needle solution area.

[0012] In one preferred embodiment, the conductive metal sheet is provided with two high-voltage electrode interfaces, which are symmetrically arranged on both sides of the solution inlet of the inner needle.

[0013] In one preferred embodiment, the base plate is provided with two external needle solution inlets at one end, the two external needle solution inlets are symmetrically arranged on both sides of the conductive metal sheet, and the external needle solution inlets are connected to the external needle solution area.

[0014] In one preferred embodiment, a sealing gasket is further included, which is disposed between the base plate and the needle plate, and is used to isolate the inner needle solution area from the outer needle solution area.

[0015] In a preferred embodiment, the sealing gasket is made of silicone or fluororubber material, the thickness of the sealing gasket is 0.5mm-2mm, the edge of the sealing gasket is provided with a positioning groove, and the sealing gasket is fitted with the edge of the base plate and the needle plate for sealing.

[0016] In a preferred embodiment, one end of the supply tube is connected to the outer needle tube of the coaxial needle, and the other end of the supply tube is connected to the side supply needle, so that the solution in the outer needle solution area flows through the side supply needle and into the outer needle tube via the supply tube.

[0017] In a preferred embodiment, the base plate and the needle plate are connected by screws.

[0018] In one preferred embodiment, the side of the base plate is provided with a plurality of threaded holes, and one end of the side liquid supply needle is connected to the threaded holes.

[0019] Due to the application of the above technical solution, the beneficial effects of this application compared with the prior art are as follows:

[0020] This application discloses an expandable array-type coaxial electrospinning needle plate device, which completely isolates the inner needle solution area from the outer needle solution area, independently controls the flow rate and pressure, is compatible with different material properties, and supplies the outer needle solution laterally to avoid cross-contamination with the inner needle solution, simplifies the assembly process, and uses a sealing gasket to seal and eliminate the risk of leakage. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below.

[0022] Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the expandable array coaxial electrospinning needle plate device of this utility model.

[0024] Figure 2 This is a cross-sectional schematic diagram of the expandable array coaxial electrospinning needle plate device of this utility model;

[0025] Figure 3 This is a schematic diagram of the bottom of the needle plate of the expandable array coaxial electrospinning needle plate device of this utility model.

[0026] Figure 4 This is a schematic diagram showing the distribution of the inner needle solution zone and the outer needle solution zone of the expandable array coaxial electrospinning needle plate device of this utility model.

[0027] In the diagram: 10. Needle plate, 11. Coaxial needle, 12. Luer connector, 13. Side supply needle, 14. Base plate, 15. External needle solution inlet, 16. Conductive metal sheet, 17. Internal needle solution inlet, 18. High voltage electrode interface.

[0028] 20. External needle solution area; 21. Internal needle solution area; 22. External needle tube inlet; 23. External needle tube; 24. Internal needle tube; 25. Sealing gasket.

[0029] 31. Module tray; 32. Module stand. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Example 1

[0037] Figures 1-4An expandable array-type coaxial electrospinning needle plate device of the present invention includes: a module frame 32 and a plurality of module trays 31 disposed on the top of the module frame 32; a plurality of electrospinning components are disposed on the top of the module trays 31, the electrospinning components include a base plate 14 and a needle plate 10 disposed on the top of the base plate 14, a plurality of Luer connectors 12 are arrayed on the top of the needle plate 10, and a coaxial needle 11 is disposed on the top of the Luer connectors 12;

[0038] An inner needle solution area 21 is provided at the middle of the bottom of the needle plate 10, and outer needle solution areas 20 are symmetrically provided on both sides of the inner needle solution area 21.

[0039] The coaxial needle 11 includes an inner needle tube 24 and an outer needle tube 23. The inner needle tube 24 is connected to the inner needle solution area 21. A supply tube is connected to one side of the outer needle tube 23. An outer needle tube inlet port 22 is provided between the outer needle tube 23 and the supply tube. A side supply needle 13 is connected to the side wall of the needle plate 10. The side supply needle 13 is connected to the outer needle solution area 20. One end of the supply tube is connected to the side supply needle 13.

[0040] Specifically, the inner needle solution area 21 and the outer needle solution area 20 of the needle plate 10 have a certain depth of 1-5mm, which allows the solution to enter the corresponding solution area from the bottom, fill the solution area first, and finally enter the top needle simultaneously, thereby realizing the simultaneous output of liquid from multiple needles to achieve uniformity of liquid supply.

[0041] Furthermore, the inner needle tube 24 and the outer needle tube 23 of the coaxial needle 11 have a certain height difference. Generally, the inner needle tube 24 is 0.1-0.5mm higher than the outer needle tube 23, so that the inner needle solution can be better wrapped by the outer needle solution, which can achieve a better coaxial electrospinning effect. The inner needle injects functional materials and the outer needle injects protective materials to prepare functional nanofiber membranes.

[0042] According to an embodiment of the present invention, a conductive metal sheet 16 is provided at one end of the base plate 14, and an inner needle solution inlet 17 is provided in the middle of the conductive metal sheet 16. The inner needle solution inlet 17 is connected to the inner needle solution area 21.

[0043] According to an embodiment of the present invention, two high-voltage electrode interfaces 18 are provided on the conductive metal sheet 16, and the two high-voltage electrode interfaces 18 are symmetrically arranged on both sides of the inner needle solution inlet 17.

[0044] According to an embodiment of the present invention, two external needle solution inlets 15 are provided at one end of the base plate 14. The two external needle solution inlets 15 are symmetrically arranged on both sides of the conductive metal sheet 16, and the external needle solution inlets 15 are connected to the external needle solution area 20.

[0045] According to an embodiment of the present invention, a sealing gasket 25 is also included. The sealing gasket 25 is disposed between the base plate 14 and the needle plate 10. The sealing gasket 25 is used to isolate the inner needle solution area 21 from the outer needle solution area 20.

[0046] According to the embodiments of this utility model, the sealing gasket 25 is made of silicone or fluororubber material, the thickness of the sealing gasket 25 is 0.5mm-2mm, the edge of the sealing gasket 25 is provided with positioning groove, and the sealing gasket 25 is sealed with the edge of the base plate 14 and the needle plate 10.

[0047] According to an embodiment of the present invention, one end of the liquid supply tube is connected to the outer needle tube 23 of the coaxial needle 11, and the other end of the liquid supply tube is connected to the side liquid supply needle 13, so that the solution in the outer needle solution area 20 flows through the side liquid supply needle and into the outer needle tube 23.

[0048] According to an embodiment of the present invention, the base plate 14 and the needle plate 10 are connected by screws.

[0049] According to an embodiment of the present invention, the side of the base plate 14 is provided with a plurality of threaded holes, and one end of the side liquid supply needle 13 is connected to the threaded holes.

[0050] In summary, the scalable array coaxial electrospinning needle plate 10 device of this application completely isolates the inner needle solution area 21 from the outer needle solution area 20, independently controls the flow rate and pressure, is compatible with different material properties, and avoids cross-contamination between the outer needle solution and the inner needle solution by side supply, simplifies the assembly process, and the sealing gasket 25 cooperates to seal and eliminate the risk of leakage.

[0051] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scalable array-type coaxial electrospinning needle plate device, comprising: A module rack and multiple module trays disposed on top of the module rack; characterized in that, The module tray is provided with multiple electrospinning components on the top. Each electrospinning component includes a base plate and a needle plate provided on the top of the base plate. Multiple Luer connectors are arranged in an array on the top of the needle plate, and coaxial needles are provided on the top of each Luer connector. An inner needle solution area is provided at the middle position of the bottom of the needle plate, and outer needle solution areas are symmetrically arranged on both sides of the inner needle solution area; The coaxial needle includes an inner needle tube and an outer needle tube. The inner needle tube is connected to the solution area of ​​the inner needle. A supply tube is connected to one side of the outer needle tube. A side supply needle is connected to the side wall of the needle plate. The side supply needle is connected to the solution area of ​​the outer needle. One end of the supply tube is connected to the side supply needle.

2. The scalable array-type coaxial electrospinning needle plate device as described in claim 1, characterized in that: A conductive metal sheet is provided at one end of the base plate, and an inner needle solution inlet is provided in the middle of the conductive metal sheet. The inner needle solution inlet is connected to the inner needle solution area.

3. The expandable array-type coaxial electrospinning needle plate device as described in claim 2, characterized in that: The conductive metal sheet is provided with two high-voltage electrode interfaces, which are symmetrically arranged on both sides of the solution inlet of the inner needle.

4. The expandable array-type coaxial electrospinning needle plate device as described in claim 3, characterized in that: Two external needle solution inlets are provided at one end of the base plate. The two external needle solution inlets are symmetrically arranged on both sides of the conductive metal sheet, and the external needle solution inlets are connected to the external needle solution area.

5. The scalable array-type coaxial electrospinning needle plate device as described in claim 1, characterized in that: It also includes a sealing gasket disposed between the base plate and the needle plate, the sealing gasket being used to isolate the inner needle solution area from the outer needle solution area.

6. The scalable array-type coaxial electrospinning needle plate device as described in claim 5, characterized in that: The sealing gasket is made of silicone or fluororubber and has a thickness of 0.5mm-2mm. The edge of the sealing gasket is provided with a positioning groove, and the sealing gasket is fitted with the edge of the base plate and the needle plate for sealing.

7. The scalable array-type coaxial electrospinning needle plate device as described in claim 1, characterized in that: One end of the supply tube is connected to the outer needle tube of the coaxial needle, and the other end of the supply tube is connected to the side supply needle, so that the solution in the outer needle solution area flows through the side supply needle and into the outer needle tube.

8. The expandable array-type coaxial electrospinning needle plate device as described in claim 6, characterized in that: The base plate and the needle plate are connected by screws.

9. The expandable array-type coaxial electrospinning needle plate device as described in claim 7, characterized in that: The side of the base plate is provided with multiple threaded holes, and one end of the side liquid supply needle is connected to the threaded holes.

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