A stem cell extraction device

Abstract

This invention relates to the field of stem cell extraction technology and provides a stem cell extraction device, including a cylinder. A connection port is fixedly provided at the center of one side of the outer surface of the cylinder. A needle body is sleeved on the surface of the connection port. First L-shaped rods are symmetrically fixed on both sides of the outer surface of the needle body. This invention provides a portable disassembly and assembly component. When replacing the needle body, pulling the push-pull rod outward causes the limiting block to disengage from the limiting groove and compresses the return spring. Rotating the needle body causes the first L-shaped rod to disengage from the second L-shaped rod, thus completing the disassembly of the needle body. During installation, simply rotate the needle body to fit onto the surface of the connection port and rotate the needle body to rotate the connection port to a position directly below the second L-shaped rod, thereby allowing the limiting block to be inserted into the limiting groove for fixation. The disassembly and assembly of the needle body is convenient and easy to use, improving the practicality and replacement efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of stem cell extraction technology, and in particular to a stem cell extraction device. Background Technology

[0002] Stem cells are a special type of cell with the ability to self-renew and differentiate into various cell types. They play an important role in development and also contribute to the maintenance and repair of adult tissues.

[0003] For example, CN221440754U discloses a stem cell extraction device, belonging to the field of stem cell extraction technology. It includes a sampling storage cylinder, with a push rod movably connected to the inner wall of the cylinder. A push plate is fixedly connected to the end of the push rod located on the outer side of the cylinder. Two sets of limiting mechanisms are provided on the end of the push rod located on the inner side of the cylinder and on the inner wall of the cylinder. In this invention, the piston plate can vent air from the inside of the sampling storage cylinder during sliding, and can be limited by rotation, preventing accidental contact of the push plate during storage and ensuring safer storage of the stem cell extract. The sealing cap can seal the output pipe, preventing leakage of the stem cell extract. Simultaneously, the sealing cap can be slightly pulled to cooperate with the piston plate for venting, allowing the gas in the sampling storage cylinder to be quickly discharged, while reducing liquid outflow during venting, thus increasing the practicality of the device.

[0004] However, in existing technologies, when extracting different types of stem cells, the needles need to be replaced to avoid cross-contamination. However, current traditional extraction devices do not allow for portable needle replacement, which affects extraction efficiency and thus limits the practicality of the device to some extent. Utility Model Content

[0005] The purpose of this invention is to solve the problem that traditional extraction devices in the prior art cannot easily replace the needles, which affects the extraction efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stem cell extraction device, comprising a cylindrical body, a connection port fixedly provided at the center of one side of the outer surface of the cylindrical body, a needle body sleeved on the surface of the connection port, a first L-shaped rod symmetrically fixedly provided on both sides of the outer surface of the needle body, inclined surfaces symmetrically provided on both sides of one end surface of the first L-shaped rod, a limiting groove provided at the center of one end surface of the first L-shaped rod, and a portable disassembly and assembly component fixedly provided at both ends of the connection port on one side of the outer surface of the cylindrical body, the portable disassembly and assembly component comprising a second L-shaped rod, a limiting block slidably provided on the inner side of the second L-shaped rod, a plurality of return springs elastically provided between the outer surface of the limiting block and the inner sidewall of the second L-shaped rod, a push-pull rod movably provided at the center of the outer surface of the limiting block penetrating the outside of the second L-shaped rod, and the limiting block being inserted into the limiting groove.

[0007] In a preferred embodiment, the cylinder is made of a transparent material, and a scale strip is provided on the outer surface of the cylinder near the connection port.

[0008] In a preferred embodiment, an anti-slip pad is fitted on the outer surface of the cylinder near the scale strip.

[0009] In a preferred embodiment, a fixing block is symmetrically fixed on the other side of the outer surface of the cylinder, and a connecting rod is slidably disposed inside the fixing block.

[0010] In a preferred embodiment, the connecting rod and the fixing block are movably connected through a locking member, and end caps are fixedly provided at the outer ends of the two sets of connecting rods.

[0011] In a preferred embodiment, a start / stop button is provided on the outer surface of the end cap, and a linear driver is fixedly provided at the center of the inner surface of the end cap.

[0012] In a preferred embodiment, the output end of the linear actuator is equipped with a piston, which is in contact with the inner wall of the cylinder, and the start / stop button is connected to the linear actuator via signal transmission.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention features a portable disassembly and assembly component. When replacing the needle body, pulling the push-pull rod outward causes the limiting block to disengage from the limiting groove and compresses the return spring. Rotating the needle body causes the first L-shaped rod to disengage from the second L-shaped rod, completing the disassembly of the needle body. During installation, simply rotate the needle body to fit over the surface of the connector and rotate the needle body to rotate the connector to a position directly below the second L-shaped rod, allowing the limiting block to be inserted into the limiting groove for fixation. This design makes disassembly and assembly of the needle body convenient and easy to use, improving the practicality and replacement efficiency of the device.

[0015] This invention utilizes a start / stop button, a linear actuator, and a piston in combination. When extracting stem cells, pressing the start / stop button controls the extension and retraction of the linear actuator, which in turn drives the piston to move along the inner wall of the cylinder, thus completing the extraction and feeding of stem cells. This replaces the traditional manual extraction method, saving time and effort and making it more convenient to use. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a stem cell extraction device provided by this utility model;

[0017] Figure 2 An exploded three-dimensional structural diagram of a stem cell extraction device provided by this utility model;

[0018] Figure 3 A three-dimensional sectional view of a stem cell extraction device provided by this utility model;

[0019] Figure 4 This utility model provides a stem cell extraction device. Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a top view of the three-dimensional structure of a stem cell extraction device provided by this utility model.

[0021] Legend:

[0022] 1. Cylinder body; 2. Scale strip; 3. Anti-slip pad; 4. Fixing block; 5. End cap; 6. Connecting rod; 7. Locking element; 8. Start / stop button; 9. Linear actuator; 10. Piston; 11. Connecting port; 12. Needle body; 13. First L-shaped rod; 14. Inclined surface; 15. Second L-shaped rod; 16. Limiting block; 17. Push-pull rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a stem cell extraction device, including a cylindrical body 1. A connection port 11 is fixedly provided at the center of one side of the outer surface of the cylindrical body 1. A needle body 12 is sleeved on the surface of the connection port 11. First L-shaped rods 13 are symmetrically fixed on both sides of the outer surface of the needle body 12. Inclined surfaces 14 are symmetrically opened on both sides of one end surface of the first L-shaped rod 13. A limiting groove is opened at the center of one end surface of the first L-shaped rod 13. Portable disassembly and assembly components are fixedly provided at both ends of the connection port 11 on one side of the outer surface of the cylindrical body 1. The portable disassembly and assembly components include a second L-shaped rod 15. A limiting block 16 is slidably provided on the inner side of the second L-shaped rod 15. A plurality of elastically arranged limits are provided between the outer surface of the limiting block 16 and the inner sidewall of the second L-shaped rod 15. The reset spring and the center of the outer surface of the limiting block 16 penetrate the outside of the second L-shaped rod 15, and a push-pull rod 17 is movably provided thereon. The limiting block 16 is inserted into the limiting groove. When replacing the needle body 12, the push-pull rod 17 is pulled outward. The push-pull rod 17 drives the limiting block 16 to disengage from the limiting groove and compresses the reset spring. The needle body 12 is rotated, and the needle body 12 drives the first L-shaped rod 13 to disengage from the second L-shaped rod 15, thus completing the disassembly of the needle body 12. During installation, the needle body 12 is simply rotated and placed on the surface of the connecting port 11, and the needle body 12 is rotated to rotate the connecting port 11 to the position directly below the second L-shaped rod 15, so that the limiting block 16 is inserted into the limiting groove for fixation. The disassembly and assembly of the needle body 12 are convenient.

[0025] like Figure 1-5 As shown, the cylinder 1 is made of transparent material. A scale strip 2 is provided on the outer surface of the cylinder 1 near the connection port 11. An anti-slip pad 3 is fitted on the outer surface of the cylinder 1 near the scale strip 2. The needle body 12 and the cylinder 1 adopt a modular disassembly and assembly design, and the cylinder 1 and the end cap 5 also adopt a modular disassembly and assembly design, which facilitates cleaning the inside of the cylinder 1.

[0026] like Figure 1-5As shown, a fixing block 4 is symmetrically fixed on the other side of the outer surface of the cylinder 1. A connecting rod 6 is slidably installed inside the fixing block 4. The connecting rod 6 and the fixing block 4 are connected through a locking member 7. End caps 5 are fixedly installed on the outer ends of the two sets of connecting rods 6. A start / stop button 8 is installed on the outer surface of the end cap 5. A linear actuator 9 is fixedly installed at the center of the inner surface of the end cap 5. A piston 10 is driven at the output end of the linear actuator 9, and the piston 10 is in contact with the inner wall of the cylinder 1. The start / stop button 8 and the linear actuator 9 are connected by signal transmission. By pressing the start / stop button 8, the extension and retraction of the linear actuator 9 are controlled. The linear actuator 9 drives the piston 10 to move along the inner wall of the cylinder 1 to complete the extraction and feeding of stem cells, replacing the traditional manual extraction method, which is more time-saving and labor-saving.

[0027] Working Principle: In use, the linear actuator 9 and piston 10 are first placed inside the cylinder 1, and the connecting rod 6 is slidably installed into the fixing block 4. The locking piece 7 is fixed to the fixing block 4, allowing the end cap 5 to be installed on the cylinder 1. During extraction, the needle body 12 is placed in the stem cell solution. Pressing the start / stop button 8 controls the extension and retraction of the linear actuator 9. The linear actuator 9 drives the piston 10 to move along the inner wall of the cylinder 1, completing the extraction and feeding of stem cells. This replaces the traditional manual extraction method, saving time and effort, and making it more convenient to use. The cylinder 1 is made of transparent material and equipped with a scale strip 2, allowing real-time observation of the extraction process inside the cylinder 1. The anti-slip pad 3 prevents users from slipping, ensuring the safe and stable operation of the device. When extracting different stem cell fluids, the needle body 12 needs to be replaced. When replacing the needle body 12, the push-pull rod 17 is pulled outward. The push-pull rod 17 drives the limiting block 16 to disengage from the limiting groove and compresses the reset spring. The needle body 12 is rotated, and the needle body 12 drives the first L-shaped rod 13 to disengage from the second L-shaped rod 15, thus completing the disassembly of the needle body 12. During installation, the needle body 12 is simply rotated and placed on the surface of the connecting port 11, and the needle body 12 is rotated to rotate the connecting port 11 to the position directly below the second L-shaped rod 15, so that the limiting block 16 is inserted into the limiting groove for fixation. The disassembly and assembly of the needle body 12 is more convenient. The present invention adopts a modular disassembly and assembly design, which facilitates the cleaning of the device and is suitable for large-scale promotion.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stem cell extraction device comprising a barrel (1), characterized in that: A connection port (11) is fixedly provided at the center of one side of the outer surface of the cylinder (1). A needle body (12) is sleeved on the surface of the connection port (11). A first L-shaped rod (13) is symmetrically fixed on both sides of the outer surface of the needle body (12). An inclined surface (14) is symmetrically opened on both sides of one end surface of the first L-shaped rod (13). A limiting groove is opened at the center of one end surface of the first L-shaped rod (13). The outer surface of the cylinder (1) is located at the connection port (11). Portable disassembly and assembly components are fixedly installed at both ends. The portable disassembly and assembly components include a second L-shaped rod (15). A limit block (16) is slidably installed on the inner side of the second L-shaped rod (15). Several return springs are elastically installed between the outer surface of the limit block (16) and the inner sidewall of the second L-shaped rod (15). The center of the outer surface of the limit block (16) penetrates the outside of the second L-shaped rod (15) and is movably installed with a push-pull rod (17). The limit block (16) is inserted into the limit groove.

2. The stem cell extraction device of claim 1, wherein: The cylinder (1) is made of transparent material, and a scale strip (2) is provided on the outer surface of the cylinder (1) near the connection port (11).

3. The stem cell extraction device of claim 1, wherein: An anti-slip pad (3) is fitted on the outer surface of the cylinder (1) near the scale bar (2).

4. The stem cell extraction device of claim 1, wherein: A fixing block (4) is symmetrically fixed on the other side of the outer surface of the cylinder (1), and a connecting rod (6) is slidably arranged inside the fixing block (4).

5. The stem cell extraction device of claim 4, wherein: The connecting rod (6) and the fixing block (4) are connected through a locking member (7), and the outer ends of the two sets of connecting rods (6) are fixedly provided with end caps (5).

6. A stem cell extraction device according to claim 5, wherein: The outer surface of the end cap (5) is provided with a start / stop button (8), and a linear driver (9) is fixedly provided at the center of the inner surface of the end cap (5).

7. A stem cell extraction device according to claim 6, wherein: The output end of the linear driver (9) is equipped with a piston (10), and the piston (10) is in contact with the inner wall of the cylinder (1). The start / stop button (8) is connected to the linear driver (9) by signal transmission.

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