Microfluidic cartridges, detection instruments and detection systems

Abstract

This invention relates to a microfluidic cartridge, a detection instrument, and a detection system. The microfluidic cartridge includes a main body. A piston-type injector is mounted on the main body. The piston-type injector includes a cylinder mounted on the main body and a piston movably mounted on the cylinder. One end of the piston is a piston head extending into the cylinder, and the other end is a connecting end for engaging with a pushing mechanism of the detection instrument. The connecting end has a second hook for engaging with a first hook of the pushing mechanism. This structural form of the microfluidic cartridge simplifies the structure of the engaging pushing mechanism. The pushing mechanism only needs a first hook to engage with the second hook of the piston, resulting in a simple device structure and reduced device cost.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a microfluidic cartridge, a detection instrument, and a detection system. Background Technology

[0002] In medical testing, microfluidic cartridges often utilize their internal microchannels to perform various operations such as separation, mixing, and reaction of different reagent solutions and sample solutions, depending on the specific requirements, to achieve the final result detection. This involves driving the liquid within the microfluidic cartridge. To achieve this, a piston-type injector is typically integrated inside the microfluidic cartridge. Commercially available testing instruments include a corresponding actuation mechanism to move the piston of the injector. This mechanism grips the piston and moves it, allowing for liquid aspiration and injection. However, the mechanical structures of these actuation mechanisms in testing instruments are often very complex, resulting in high device costs. Summary of the Invention

[0003] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a microfluidic cartridge, detection instrument and detection system that can simplify the structure and reduce the cost of the device.

[0004] The technical solution is as follows: A microfluidic cartridge, comprising: a body, wherein a piston-type injector is provided on the body, the piston-type injector includes a cylinder disposed on the body and a piston movably disposed on the cylinder; one end of the piston movably disposed is a piston head extending into the cylinder, and the other end of the piston movably disposed is a connecting end for cooperating with a pushing mechanism of a detection instrument; the connecting end is provided with a second hook for engaging with a first hook of the pushing mechanism.

[0005] The aforementioned microfluidic cartridge, with a second hook at the connecting end, allows the pushing mechanism to connect to the connecting end via the engagement of the first and second hooks. After connection, the pushing mechanism drives the piston to move along the cylinder, performing liquid suction and injection. Furthermore, after completing the liquid detection step, the first and second hooks separate, and the microfluidic cartridge is removed from the detection instrument. Thus, the structure of the microfluidic cartridge simplifies the structure of the associated pushing mechanism, which only requires a first hook to engage with the second hook of the piston. This simplifies the device structure and reduces costs.

[0006] In one embodiment, the piston-type injector is disposed on the top surface of the body, and the piston moves in a direction perpendicular to the top surface.

[0007] In one embodiment, a groove is provided on the top surface, the groove extends from the side of the top surface to the piston-type syringe, the bottom surface of the groove is lower than the position of the second hook, and the distance between the two opposite groove walls is not less than the width of the first hook.

[0008] In one embodiment, the second hook protrudes above the top surface.

[0009] In one embodiment, the connecting end is provided with a hollowed-out area to form the second hook body, and the hollowed-out area can accommodate the first hook body.

[0010] In one embodiment, the second hook includes a first connecting arm disposed on the end face of the connecting end and a second connecting arm connected to the first connecting arm, the second connecting arm being parallel to the top surface.

[0011] A testing instrument includes a testing chamber, a moving mechanism, and a pushing mechanism. The testing chamber is used to house a microfluidic cartridge. The moving mechanism is used to drive the microfluidic cartridge into or out of the testing chamber. The pushing mechanism is used to drive the piston of the microfluidic cartridge to move to perform liquid suction and liquid injection actions. The end face of the pushing mechanism is provided with a first hook, which is used to engage with a second hook of the piston.

[0012] The aforementioned testing instrument, with a second hook at the connecting end, allows the pushing mechanism to connect to the connecting end via the engagement of the first and second hooks. After connection, the pushing mechanism drives the piston to move along the cylinder, performing liquid suction and injection. Furthermore, after the microfluidic cartridge completes the liquid detection step, the first and second hooks separate, and the microfluidic cartridge is removed from the testing instrument. Thus, the structure of the microfluidic cartridge simplifies the structure of the associated pushing mechanism. The pushing mechanism only requires a first hook to engage with the second hook of the piston, resulting in a simpler device structure and reduced costs.

[0013] In one embodiment, the first hook includes a third connecting arm disposed on the end face of the pushing mechanism, and a fourth connecting arm connected to the third connecting arm; the third connecting arm is perpendicular to the end face of the pushing mechanism; the fourth connecting arm is parallel to the end face of the pushing mechanism.

[0014] In one embodiment, the pushing mechanism is a motor screw drive mechanism, a motor pulley drive mechanism, a motor gear drive mechanism, a cylinder drive mechanism, an electric cylinder drive mechanism, or a hydraulic cylinder drive mechanism.

[0015] A detection system, the detection system comprising the microfluidic cartridge and the detection instrument.

[0016] The aforementioned detection system, with a second hook at the connecting end, allows the pushing mechanism to connect to the connecting end via the engagement of the first and second hooks. After connection, the pushing mechanism drives the piston to move along the cylinder, performing liquid suction and injection. Furthermore, after the microfluidic cartridge completes the liquid detection step, the first and second hooks separate, and the microfluidic cartridge is removed from the detection instrument. Thus, the structure of the microfluidic cartridge simplifies the structure of the associated pushing mechanism. The pushing mechanism only requires a first hook to engage with the second hook of the piston, resulting in a simpler device structure and reduced costs. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of a microfluidic card cartridge according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the piston component of a microfluidic card cartridge according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the head of the pushing mechanism of a detection instrument according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the working state of a microfluidic card cartridge being fed into the compartment near the head of the pushing mechanism, according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the working state when the second hook of the microfluidic card cartridge and the first hook of the head of the pushing mechanism are engaged in a specific embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the working state of the piston component of the microfluidic cartridge according to an embodiment of the present invention when the first hook of the pushing mechanism pulls the piston component outward from the cylinder.

[0025] 10. Body; 11. Top surface; 111. Groove; 20. Piston-type syringe; 21. Cylinder; 22. Piston component; 221. Piston head; 222. Connecting end; 2221. End face; 2222. Hollowed-out area; 223. Second hook; 2231. First connecting arm; 2232. Second connecting arm; 30. Pushing mechanism; 31. First hook; 311. Third connecting arm; 312. Fourth connecting arm. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] See Figures 1 to 3 , Figure 1 This diagram shows a top view of a microfluidic card cartridge according to an embodiment of the present invention. Figure 2 A schematic diagram of the piston component 22 of a microfluidic card cartridge according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the head of the pushing mechanism 30 of a detection instrument according to an embodiment of the present invention is shown. An embodiment of the present invention provides a microfluidic cartridge, which includes a body 10. A piston-type injector 20 is provided on the body 10. The piston-type injector 20 includes a cylinder 21 disposed on the body 10 and a piston 22 movably disposed on the cylinder 21. One end of the piston 22 is a piston head 221 extending into the cylinder 21, and the other end of the piston 22 is a connecting end 222 for cooperating with the pushing mechanism 30 of the detection instrument (not shown). The connecting end 222 is provided with a second hook 223 for engaging with a first hook 31 of the pushing mechanism 30.

[0028] Please see Figures 4 to 6 , Figure 4 This diagram illustrates the working state of a microfluidic cartridge being fed into the compartment near the head of the pushing mechanism 30, according to an embodiment of the present invention. Figure 5 This diagram illustrates the working state of a microfluidic card cartridge when the second hook 223 is engaged with the first hook 31 of the head of the pushing mechanism 30, according to an embodiment of the present invention. Figure 6This diagram illustrates the working state of a microfluidic cartridge according to an embodiment of the present invention, where the piston 22 is pulled outward from the cylinder 21 by the first hook 31 of the pushing mechanism 30. In this microfluidic cartridge, a second hook 223 is provided at the connecting end 222. Thus, the pushing mechanism 30 can be connected to the connecting end 222 by engaging the first hook 31 with the second hook 223. After the pushing mechanism 30 is connected to the connecting end 222, it can drive the piston 22 to move along the cylinder 21 to achieve liquid suction and injection. Furthermore, after the microfluidic cartridge completes the liquid detection step, the first hook 31 and the second hook 223 are separated, and the microfluidic cartridge is removed from the detection instrument. Therefore, the structure of the microfluidic cartridge simplifies the structure of the corresponding pushing mechanism 30. The pushing mechanism 30 only needs the first hook 31 to engage with the second hook 223 of the piston 22, resulting in a simpler device structure and reduced device cost.

[0029] Please see Figures 4 to 6 In any embodiment, the piston-type injector 20 is disposed on the top surface 11 of the body 10, and the piston 22 moves in a direction perpendicular to the top surface 11. Thus, after the first hook 31 of the pushing mechanism 30 engages with the second hook 223 of the piston 22, the pushing mechanism 30 moves vertically up and down, thereby driving the piston 22 to move in a direction perpendicular to the top surface 11. When the piston 22 moves upward and is withdrawn from the cylinder 21, liquid aspiration is achieved, allowing external liquid to enter the microfluidic cartridge for, for example, reaction or mixing. Conversely, when the piston 22 moves downward and enters the cylinder 21, liquid injection is achieved, allowing the liquid in the microfluidic cartridge to be discharged. Alternatively, the piston-type injector 20 can also be disposed on other surfaces of the body 10, such as the side, with the piston 22 moving in a direction perpendicular to the side, and the pushing mechanism 30 moving horizontally to drive the piston 22 to perform liquid aspiration or injection.

[0030] Please see Figure 1 , Figure 4 and Figure 5In one embodiment, a groove 111 is provided on the top surface 11. The groove 111 extends from the side of the top surface 11 to the piston syringe 20. The bottom surface of the groove 111 is lower than the position of the second hook 223, and the distance between the two opposing groove walls of the groove 111 is not less than the width of the first hook 31. Thus, during the process of the microfluidic cartridge moving into the detection chamber of the detection instrument, the first hook 31 of the pushing mechanism 30 is located in the groove 111 and can move relative to it along the groove 111. When the microfluidic cartridge moves into place, the second hook 223 moves to a position where it hooks and engages with the first hook 31. Since the first hook 31 and the second hook 223 of the pushing mechanism 30 are connected together at this time, the piston 22 can be driven to move up and down to achieve liquid suction and injection. Conversely, after the microfluidic cartridge completes its liquid injection process, the pushing mechanism 30 fully positions the piston 22 within the cylinder 21, driving the microfluidic cartridge out of the detection chamber. Simultaneously, the second hook 223 of the microfluidic cartridge separates from the first hook 31. Thus, on one hand, since the first hook 31 moves relative to the groove 111 to engage or disengage with the second hook 223, the second hook 223 does not need to protrude above the top surface 11, meaning it occupies less space above the surface. This allows for maximizing the size of the microfluidic cartridge within a limited space. On the other hand, the second hook 223 and the first hook 31 can move together and then easily separate, making operation convenient and simple.

[0031] Of course, it is also possible to omit the groove 111 on the top surface 11. As an alternative, the second hook 223 protrudes above the top surface 11. This allows the first hook 31 of the pushing mechanism 30 to be positioned on and move relative to the top surface 11. When the microfluidic cartridge is in place, the second hook 223 moves to a position where it hooks and engages with the first hook 31. Since the first hook 31 and the second hook 223 of the pushing mechanism 30 are hooked together, they can drive the piston 22 to move up and down to achieve liquid suction and injection. Conversely, after the microfluidic cartridge has finished injecting liquid, the pushing mechanism 30 causes the piston 22 to retract completely into the cylinder 21, driving the microfluidic cartridge out of the detection chamber. The second hook 223 of the microfluidic cartridge then separates from the first hook 31.

[0032] Furthermore, when it is not necessary to design a groove 111 on the top surface 11, as another optional solution, the connecting end 222 is provided with a hollowed-out area 2222 and forms a second hook 223, which can accommodate the first hook 31. Thus, when the microfluidic cartridge is about to be moved into place, the pushing mechanism 30 drives the first hook 31 to move downwards into place and inserts the first hook 31 into the hollowed-out area 2222, and then the microfluidic cartridge is moved into place. When the microfluidic cartridge is in place, the second hook 223 moves to a position where it hooks and engages with the first hook 31. Since the first hook 31 and the second hook 223 of the pushing mechanism 30 are connected together at this time, the piston 22 can be driven to move up and down to achieve liquid suction and injection. Conversely, after the microfluidic card box is tested, the pushing mechanism 30 makes the piston 22 completely inside the cylinder 21, and moves the microfluidic card box so that the second hook 223 separates from the first hook 31. When the second hook 223 separates from the first hook 31, the pushing mechanism 30 drives the first hook 31 to move upward to the outside of the hollowing area 2222, and then the microfluidic card box can be moved out of the testing chamber.

[0033] In one embodiment, the second hook 223 includes a first connecting arm 2231 disposed on the end face 2221 of the connecting end 222 and a second connecting arm 2232 connected to the first connecting arm 2231. The second connecting arm 2232 is parallel to the top surface 11. Furthermore, the first connecting arm 2231 is specifically, for example, perpendicular to the end face 2221 of the connecting end 222. Thus, since the second connecting arm 2232 is parallel to the top surface 11, by horizontally moving the microfluidic cartridge, the second hook 223 can smoothly engage and connect with the first hook 31, and can also smoothly separate from each other.

[0034] See Figure 1 , Figure 3 and Figure 5 In one embodiment, a detection instrument includes a detection chamber (not shown), a moving mechanism (not shown), and a pushing mechanism 30. The detection chamber is used to hold a microfluidic cartridge, the moving mechanism is used to drive the microfluidic cartridge into or out of the detection chamber, and the pushing mechanism 30 is used to drive the piston 22 of the microfluidic cartridge to move to perform liquid suction and liquid injection actions. The end face 2221 of the pushing mechanism 30 is provided with a first hook 31, which is used to engage with a second hook 223 of the piston 22.

[0035] The aforementioned testing instrument, with a second hook 223 at the connecting end 222, allows the pushing mechanism 30 to connect to the connecting end 222 via the hooking action of the first hook 31 and the second hook 223. After the pushing mechanism 30 and the connecting end 222 are connected, the pushing mechanism 30 can drive the piston 22 to move along the cylinder 21 to achieve liquid suction and injection. Furthermore, after the microfluidic cartridge completes the liquid detection step, the first hook 31 and the second hook 223 are separated, and the microfluidic cartridge is removed from the testing instrument. Thus, the structure of the aforementioned microfluidic cartridge simplifies the structure of the corresponding pushing mechanism 30. The pushing mechanism 30 only needs a first hook 31 to hook and connect with the second hook 223 of the piston 22, resulting in a simpler device structure and reduced device cost.

[0036] See Figure 1 , Figure 3 and Figure 5 In one embodiment, the first hook 31 includes a third connecting arm 311 disposed on the end face 2221 of the pushing mechanism 30, and a fourth connecting arm 312 connected to the third connecting arm 311. The third connecting arm 311 is perpendicular to the end face 2221 of the pushing mechanism 30. The fourth connecting arm 312 is parallel to the end face 2221 of the pushing mechanism 30. Thus, the fourth connecting arm 312 is parallel to the top surface 11 of the microfluidic card box. For example, by horizontally moving the microfluidic card box, the second hook 223 can smoothly engage and connect with the first hook 31, and can also smoothly separate from each other. When the first hook 31 and the second hook 223 engage and connect with each other, the second connecting arm 2232 is inserted into the gap between the fourth connecting arm 312 and the end face 2221 of the pushing mechanism 30, and the fourth connecting arm 312 is inserted into the gap between the second connecting arm 2232 and the end face 2221 of the connecting end 222.

[0037] In one embodiment, the pushing mechanism 30 is a motor screw drive mechanism, a motor pulley drive mechanism, a motor gear drive mechanism, a cylinder drive mechanism, an electric cylinder drive mechanism, or a hydraulic cylinder drive mechanism. The pushing mechanism 30 only needs to provide power to push the second hook 223 to move the piston 22 within the cylinder 21; its specific structural form is not limited here and can be set according to actual needs.

[0038] See Figure 1 , Figure 3 and Figure 5 In one embodiment, a detection system includes a microfluidic cartridge of any of the above embodiments, and a detection instrument including any of the above embodiments.

[0039] In the aforementioned detection system, the second hook 223 is provided at the connection end 222. This allows the pushing mechanism 30 to connect to the connection end 222 via the hooking action of the first hook 31 and the second hook 223. After the pushing mechanism 30 and the connection end 222 are connected, the pushing mechanism 30 can drive the piston 22 to move along the cylinder 21 to achieve liquid suction and injection. Furthermore, after the microfluidic cartridge completes the liquid detection step, the first hook 31 and the second hook 223 are separated, and the microfluidic cartridge is removed from the detection instrument. Thus, the structure of the microfluidic cartridge simplifies the structure of the corresponding pushing mechanism 30. The pushing mechanism 30 only needs the first hook 31 to hook and connect with the second hook 223 of the piston 22, resulting in a simpler device structure and reduced device cost.

[0040] It should be noted that, in the infringement comparison, the "first hook 31" can be "a part of the pushing mechanism 30", that is, the "first hook 31" and "other parts of the pushing mechanism 30" are integrally molded; or it can be an independent component that can be separated from "other parts of the pushing mechanism 30", that is, the "first hook 31" can be manufactured independently and then combined with "other parts of the pushing mechanism 30" to form a whole.

[0041] It should be noted that, in the infringement comparison, the "second hook 223" can be "a part of the connecting end 222", that is, the "second hook 223" and the "other parts of the connecting end 222" are integrally molded; or it can be an independent component that can be separated from the "other parts of the connecting end 222", that is, the "second hook 223" can be manufactured independently and then combined with the "other parts of the connecting end 222" to form a whole.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive 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 description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 or an electrical 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A detection system, characterized in that, include: A microfluidic cartridge includes: a body, on which a piston-type injector is mounted, the piston-type injector including a cylinder mounted on the body and a piston movably mounted on the cylinder; one end of the piston is a piston head extending into the cylinder, and the other end of the piston is a connecting end for cooperating with a pushing mechanism of a detection instrument; the connecting end is provided with a second hook for engaging with a first hook of the pushing mechanism; a groove is provided on the top surface of the body, the groove extending from the side of the top surface to the piston-type injector, the bottom surface of the groove being lower than the position of the second hook, and the distance between the two opposite walls of the groove being not less than the width of the first hook; The testing instrument includes a testing chamber, a moving mechanism, and a pushing mechanism. The testing chamber is used to house the microfluidic cartridge. The moving mechanism is used to drive the microfluidic cartridge into or out of the testing chamber. The pushing mechanism is used to drive the piston of the microfluidic cartridge to move to perform liquid suction and liquid injection actions. The end face of the pushing mechanism is provided with a first hook, which is used to engage with a second hook of the piston. During the process of the moving mechanism driving the microfluidic cartridge to move into or out of the detection chamber, the first hook of the pushing mechanism moves relative to the groove; when the second hook moves to a position where it engages with the first hook, the pushing mechanism drives the piston of the microfluidic cartridge to move to perform liquid suction and liquid injection actions; after the liquid injection action of the microfluidic cartridge is completed, the moving mechanism drives the microfluidic cartridge to move out of the detection chamber, and the second hook of the microfluidic cartridge separates from the first hook.

2. The detection system according to claim 1, characterized in that, The piston moves in a direction perpendicular to the top surface.

3. The detection system according to claim 1, characterized in that, The second hook body is integrally formed with the connecting end.

4. The detection system according to claim 1, characterized in that, The connecting end is provided with a hollowed-out area to form the second hook body, and the hollowed-out area can accommodate the first hook body.

5. The detection system according to claim 1, characterized in that, The second hook includes a first connecting arm disposed on the end face of the connecting end and a second connecting arm connected to the first connecting arm, the second connecting arm being parallel to the top surface.

6. The detection system according to claim 1, characterized in that, The first hook includes a third connecting arm disposed on the end face of the pushing mechanism, and a fourth connecting arm connected to the third connecting arm.

7. The detection system according to claim 6, characterized in that, The third connecting arm is perpendicular to the end face of the pushing mechanism.

8. The detection system according to claim 7, characterized in that, The fourth connecting arm is parallel to the end face of the pushing mechanism.

9. The detection system according to claim 1, characterized in that, The first hook and the pushing mechanism are integrally molded.

10. The detection system according to claim 1, characterized in that, The driving mechanism is a motor screw drive mechanism, a motor pulley drive mechanism, a motor gear drive mechanism, a cylinder drive mechanism, an electric cylinder drive mechanism, or a hydraulic cylinder drive mechanism.

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