Injection pump and micro-droplet production equipment
By introducing a heating element and a heating medium flow mechanism into the injection pump, the problem of continuous phase liquid solidification in microdroplet generation was solved, and efficient microdroplet generation was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-03-20
AI Technical Summary
Existing technologies struggle to effectively generate microdroplets, especially when transporting continuous phase liquids, to avoid the problem of their solidification.
An injection pump was designed, including a heating element and an injection pump body. The heating element heats the infusion chamber and the heating medium flows from bottom to top to improve the heating effect and ensure that the continuous phase liquid does not solidify.
This technology enables effective heating of continuous liquid phases, preventing solidification and improving the efficiency and quality of microdroplet generation.
Smart Images
Figure CN224017382U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of microdroplet technology, and more particularly to injection pumps and microdroplet production equipment. Background Technology
[0002] Microdroplets are tiny, liquid droplets with small volumes and broad application potential in many fields. Researchers have proposed various methods to efficiently generate microdroplets. One common method is microfluidics. This technique utilizes microchannels and precise fluid control to cut a dispersed liquid phase with a continuous liquid phase. After the dispersed liquid phase is cut, it encapsulates the continuous liquid phase, which then solidifies into microspheres encapsulating the separated dispersed liquid phase upon cooling. Therefore, a syringe pump is needed that can heat the continuous liquid phase during delivery to prevent solidification. Summary of the Invention
[0003] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide an injection pump and microdroplet production equipment to solve the problems in the related technology.
[0004] The first aspect of this disclosure provides an infusion pump, comprising:
[0005] The syringe pump body includes a chamber for loading a continuous phase liquid for infusion;
[0006] A heating element extends along the infusion chamber and is disposed on the syringe pump body to cover the infusion chamber.
[0007] In an embodiment of the first aspect, the heating element forms a heating channel; the heating channel has an outlet at the top and an inlet at the bottom.
[0008] In the first aspect of the embodiment, a heating element is further included, which is arranged in a ring around the injection pump body corresponding to the area of the heating channel near the liquid outlet.
[0009] In an embodiment of the first aspect, the syringe pump body further includes an injection port and an infusion port for communicating with the infusion chamber; the injection port and the infusion port are formed on the same side wall of the syringe pump body.
[0010] In an embodiment of the first aspect, the injection port and the infusion port are formed on the top or bottom wall of the injection pump body.
[0011] In an embodiment of the first aspect, the syringe pump body further includes a sealing plug detachably connected to the injection port.
[0012] In an embodiment of the first aspect, the heating element is arranged in a serpentine manner around the injection pump body.
[0013] In an embodiment of the first aspect, the heating element is implemented as a heating wire arranged in a serpentine manner around the body of the injection pump.
[0014] In an embodiment of the first aspect, a thermal insulation layer is further included, covering the annular sidewall of the injection pump body.
[0015] A second aspect of this disclosure provides microdroplet production equipment, including the injection pump.
[0016] As described above, embodiments of this disclosure provide an injection pump and a microdroplet production device. The injection pump includes an injection pump body and a heating component. The injection pump body includes a chamber for loading a continuous phase liquid. The heating component extends along the chamber and is disposed within the injection pump body, covering the chamber. The microdroplet production device includes the injection pump. The heating component in this disclosure not only performs the basic function of heating the continuous phase liquid in the chamber, but also enhances the heating effect through the upward-flowing heating medium within the heating component. Attached Figure Description
[0017] Figure 1 The diagram shown is a schematic diagram of the overall structure of the continuous phase shift injection pump in an embodiment of this disclosure;
[0018] Figure 2 The diagram shown is a cross-sectional view of the overall structure of the continuous phase-shift injection pump in an embodiment of this disclosure;
[0019] Figure 3 The figure shown is a cross-sectional schematic diagram of the first embodiment of the serpentine heating channel in this disclosure;
[0020] Figure 4 The diagram shown is a schematic diagram of the overall structure of the first embodiment of the serpentine heating channel in this disclosure;
[0021] Figure 5 The figure shown is a cross-sectional schematic diagram of the second embodiment of the heating flow channel with a serpentine shape in this disclosure;
[0022] Figure 6 The diagram shown is a schematic representation of the overall structure of the second embodiment of the serpentine heating channel in this disclosure.
[0023] Figure 7 The diagram shown is a schematic representation of the second embodiment of the serpentine heating channel in this disclosure.
[0024] Figure 8 The diagram shown is a cross-sectional view of the overall structure in which the heating element is implemented as a heating wire in this disclosure.
[0025] Figure label:
[0026] 10. Injection pump body; 11. Piston block; 12. Sealing plug; 101. Infusion chamber; 1011. Injection port; 1012. Infusion port;
[0027] 20. Heating component; 201. Liquid outlet; 202. Liquid inlet; 203. Heating channel; 21. Heating wire;
[0028] 30. Thermal insulation layer. Detailed Implementation
[0029] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.
[0030] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.
[0031] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.
[0032] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.
[0033] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.
[0034] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.
[0035] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.
[0036] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.
[0037] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.
[0038] Microdroplets are tiny, liquid droplets with small volumes and broad application potential in many fields. Researchers have proposed various methods to efficiently generate microdroplets. One common method is microfluidics. This technique utilizes microchannels and precise fluid control to cut a dispersed liquid phase with a continuous liquid phase. After the dispersed liquid phase is cut, it encapsulates the continuous liquid phase, which then solidifies into microspheres encapsulating the separated dispersed liquid phase upon cooling. Therefore, a syringe pump is needed that can heat the continuous liquid phase during delivery to prevent solidification.
[0039] Based on the above problems, the heating component in this embodiment can not only realize the basic function of heating the continuous phase liquid in the infusion chamber, but also improve the heating effect of the continuous phase liquid in the infusion chamber through the heating medium flowing from bottom to top in the heating component.
[0040] Figure 1 The diagram shown is a schematic diagram of the overall structure of the continuous phase-shift injection pump in an embodiment of this disclosure. Figure 2 The diagram shown is a cross-sectional schematic of the overall structure of the continuous phase-shift injection pump in an embodiment of this disclosure. Figure 1 and Figure 2 In this example, the syringe pump includes a syringe pump body 10 and a heating element 20. The syringe pump body 10 includes a chamber 101 for loading a continuous phase liquid. The heating element 20 extends along the chamber 101 and is disposed within the syringe pump body 10 to cover the chamber 101.
[0041] The advantage of the above configuration is that the heating component 20 can not only perform the basic function of heating the continuous phase liquid in the infusion chamber 101, but also improve the heating effect of the continuous phase liquid in the infusion chamber 101 through the heating medium flowing from bottom to top in the heating component 20.
[0042] For example, the heating element 20 is provided on the outer wall or inside the wall of the injection pump body 10.
[0043] exist Figure 2 In this example, the heating element 20 is disposed on the outer wall of the syringe pump body 10. The heating element 20 forms a heating channel 203 for loading a heating medium; the heating channel 203 has an outlet 201 at the top and an inlet 202 at the bottom. Exemplarily, the heating medium is oil.
[0044] exist Figure 2In this example, the syringe pump body 10 further includes an injection port 1011 and an infusion port 1012 for communication with the infusion chamber 101; the injection port 1011 and the outlet port 201 are formed on the same wall surface of the syringe pump body 10. For example, in this embodiment, the injection port 1011 and the infusion port 1012 are located on the top wall of the syringe pump body 10. In another embodiment, the injection port 1011 and the infusion port 1012 are located on the bottom wall of the syringe pump body 10.
[0045] In this embodiment, the injection pump further includes a heating element (not shown in the figure), which is arranged around the injection pump body 10 in a ring around the region of the heating channel 203 near the outlet 201. Exemplarily, the heating element is implemented as a heating plate. Those skilled in the art will understand that as the heating medium flows within the heating channel 203, its temperature gradually decreases (i.e., the closer to the outlet 201, the lower the temperature of the heating medium). Therefore, the heating element located near the outlet 201 can provide auxiliary heating to the continuous phase liquid in the region corresponding to the outlet 201, thereby increasing both the temperature of the continuous phase liquid at the infusion port 1012 and the temperature uniformity of the continuous phase liquid within the infusion chamber 101.
[0046] In another embodiment, the injection port 1011 and the infusion port 1012 may also be formed on the bottom wall of the injection pump body 10.
[0047] For example, the syringe pump body 10 further includes a piston block 11 disposed in the infusion chamber 101, which can be close to or away from the infusion port 1012. It can be understood that when the piston block 11 is close to the infusion port 1012, it squeezes the continuous phase liquid out of the infusion chamber 101 through the infusion port 1012; when the piston block 11 is away from the infusion port 1012, it adds the continuous phase liquid to the infusion chamber 101 through the injection port 1011.
[0048] Exemplarily, the syringe pump body 10 further includes a sealing plug 12 detachably connected to the main liquid inlet 1011. For example, the liquid inlet 1011 is provided with an internal thread, and the outer surface of the cylindrical body of the sealing plug 12 is provided with an external thread that engages with the internal thread. Further exemplary, a sealing ring (not shown in the figure) is provided between the sealing plug 12 and the syringe pump body 10.
[0049] For example, the heating channel 203 is serpentinely arranged around the injection pump body 10.
[0050] Figure 3 The diagram shown is a cross-sectional schematic of the first embodiment of the serpentine heating channel in this disclosure. Figure 4The diagram shown is a schematic representation of the overall structure of the first embodiment of the serpentine heating channel in this disclosure. Figure 3 and Figure 4 In the example, the heating element 20, implemented as the heating channel 203, is disposed within the wall of the injection pump body 10. The heating channel 203 is configured to spirally surround the injection pump body 10 along its axial direction. Exemplarily, the spiral direction can be either clockwise or counterclockwise. Further exemplaryly, the pitch of the spiral heating channel is configured such that the spacing between adjacent heating channels 203 is sufficiently small to increase the coverage area of the heating channel 203 over the infusion chamber 101. The advantage of this configuration is that, while ensuring the coverage area of the heating channel 203 over the infusion chamber 101, the flow time of the heating medium within the heating channel 203 is extended, thereby further improving the heating effect of the heating medium on the continuous phase liquid within the infusion chamber 101.
[0051] Figure 5 The diagram shown is a cross-sectional schematic of the second embodiment of the serpentine heating channel in this disclosure. Figure 6 The diagram shown is a schematic diagram of the overall structure of the second embodiment of the serpentine heating channel in this disclosure. Figure 7 The diagram shown is a schematic representation of the second embodiment of the serpentine heating channel in this disclosure. Figure 5 , 6 and Figure 7 In this example, the heating element, implemented as the heating channel 203, is disposed within the wall of the injection pump body 10. The heating channel 203 is configured to serpentinely surround the injection pump body 10 circumferentially. Those skilled in the art will understand that, in this embodiment, the heating medium flows upward along the circumference of the injection pump body 10 to the top of the injection pump body 10, then downward to the bottom of the injection pump body 10, and then repeats the above process.
[0052] In this way, the heating medium can flow back and forth between the top and bottom of the injection pump body 10, alternately transferring heat to the top and bottom of the injection pump body 10. This avoids the situation where the heat transfer of the heating medium can only go from bottom to top, resulting in heat attenuation at the top, and improves the uniform heating of the continuous phase liquid in the infusion chamber 101. Secondly, the heating effect of the heating medium on the continuous phase liquid in the infusion chamber 101 can be further improved by extending the flow time of the heating medium in the heating channel 203.
[0053] Figure 8The diagram shows a cross-sectional view of the overall structure in which the heating element is implemented as a heating wire in this disclosure. In the example shown, the heating element 20 is implemented as a heating wire 21, which is serpentinely wrapped around the injection pump body 10 along its axial direction. For example, the winding method of the heating wire 21 is similar to... Figure 4 The winding method is the same in the examples.
[0054] In the above embodiment, the continuous phase-shifting injection pump further includes a thermal insulation layer 30. The thermal insulation layer 30 covers the annular sidewall of the injection pump body 10. Exemplarily, the thermal insulation layer 30 is implemented as thermal insulation cotton or an inert gas layer. The advantage of this configuration is that it can reduce the heat loss of the continuous phase liquid in the infusion chamber 101 and reduce the heat transfer between the heating medium and the outside environment.
[0055] Another embodiment of this disclosure provides a microdroplet production apparatus. The microdroplet production apparatus includes the injection pump.
[0056] In summary, this disclosure provides an injection pump and a microdroplet production device. The injection pump includes a pump body and a heating element. The pump body includes a chamber for loading a continuous phase liquid. The heating element extends along the chamber and is disposed within the pump body, covering the chamber. The microdroplet production device includes the injection pump. The heating element in this disclosure not only performs the basic function of heating the continuous phase liquid in the chamber, but also enhances the heating effect through the upward-flowing heating medium within the heating element.
[0057] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.
Claims
1. An injection pump, characterized in that, include: The syringe pump body includes a chamber for loading a continuous phase liquid for infusion; A heating element extends along the infusion chamber and is disposed on the syringe pump body to cover the infusion chamber.
2. The syringe pump according to claim 1, characterized in that, The heating element forms a heating channel; the heating channel has an outlet at the top and an inlet at the bottom.
3. The syringe pump according to claim 2, characterized in that, It also includes a heating element, which is arranged in a ring around the injection pump body corresponding to the area of the heating channel near the liquid outlet.
4. The syringe pump according to claim 1, characterized in that, The syringe pump body also includes an injection port and an infusion port for communicating with the infusion chamber; the injection port and the infusion port are formed on the same side wall of the syringe pump body.
5. The syringe pump according to claim 4, characterized in that, The injection port and the infusion port are formed on the top or bottom wall of the injection pump body.
6. The syringe pump according to claim 4, characterized in that, The syringe pump body also includes a sealing plug that is detachably connected to the injection port.
7. The syringe pump according to claim 1, characterized in that, The heating element is arranged in a serpentine manner around the body of the injection pump.
8. The syringe pump according to claim 1, characterized in that, The heating element is implemented as a heating wire arranged in a serpentine manner around the body of the injection pump.
9. The syringe pump according to claim 1, characterized in that, It also includes a heat insulation layer that covers the annular sidewall of the injection pump body.
10. A microdroplet production device, characterized in that, include: The injection pump as described in any one of claims 1-9.