Stirring magnetic nanoparticle injector

Abstract

The utility model discloses a magnetic nanoparticle injector capable of stirring, and relates to the technical field of nanoparticle injectors. The bottom of the syringe barrel is provided with a cover body, one side of the cover body is provided with a connector, the inside of the syringe barrel is in sliding fit with a push rod, the inside of the syringe barrel is provided with a stirring assembly, and the stirring assembly comprises a rotating rod, stirring blades and a piston plate. The nano-particle solution is sucked into the syringe barrel through the connector of the cover body, and when the push rod is pressed to drive the piston plate to push the nano-particle solution in the syringe barrel forwards, the piston plate moving forwards drives the rotating rod to rotate in the syringe barrel, so that the stirring blades are driven to rotate, and the nano-particle solution in the syringe barrel is stirred. The situation that the magnetic nanoparticles form large agglomerates during injection is reduced, and the situation that an injector is unstable easily due to vibration of a motor is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of nano particle syringes, in particular to a stirrable magnetic nano particle syringe. Background Art

[0002] In the prior art, magnetic nanoparticles have a high surface area and are magnetic, so they have permanent aggregation and can aggregate under the influence of an external magnetic field or their own action. The morphology and structure of magnetic nanoparticles will affect their wave absorption performance. Therefore, aggregated magnetic nanoparticles may not only form large aggregates to cause vascular embolism, but also affect their role in MRI and targeted therapy.

[0003] A Chinese patent with announcement number CN213252067U discloses a stirrable magnetic nanoparticle syringe under static magnetic shielding, including a needle, a hollow barrel, a piston plate, a tin-plated iron static magnetic shielding cover, and a power supply and control circuit box. The needle is connected to the center of the top of the hollow barrel, and a piston plate that can move parallelly inside the hollow barrel is provided inside the hollow barrel. The hollow barrel is fixed inside the tin-plated iron static magnetic shielding cover, and a power supply and control circuit box is fixed at the tail of the tin-plated iron static magnetic shielding cover, which can effectively shield the external magnetic field and prevent the magnetic nanoparticles from agglomerating when disturbed by the external magnetic field.

[0004] The stirring rod inside the above syringe is driven by a motor to rotate and stir. During the injection process, the vibration of the motor can easily cause the syringe to be unstable. In addition, the stirring rod comes into contact with the piston plate at the bottom of the syringe when it is pushed to the bottom, and it is not convenient to disinfect and clean it.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a stirrable magnetic nanoparticle syringe.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A stirrable magnetic nanoparticle syringe comprises a syringe barrel, a cover body is arranged at the bottom of the syringe barrel, a connector is arranged on one side of the cover body, a push rod is slidably matched inside the syringe barrel, and a stirring assembly is arranged inside the syringe barrel;

[0009] The stirring assembly includes a rotating rod rotatably fitted inside the syringe barrel, a stirring blade installed at one end of the rotating rod, and a piston plate installed at one end of the push rod. The piston plate is slidably fitted in the syringe barrel, the piston plate cooperates with the rotating rod, and the stirring blade is located on the side close to the cover body.

[0010] Optionally, a tin-plated iron static magnetic shielding cover is provided on the outside of the syringe barrel, and visual windows are provided on both the syringe barrel and the tin-plated iron static magnetic shielding cover; by placing the syringe barrel into the tin-plated iron static magnetic shielding cover and closing the shielding cover, the external magnetic field can be effectively shielded to prevent the magnetic nanoparticles from agglomerating due to interference from the external magnetic field; during the injection process, the injection volume can be observed and controlled through the visual windows on the syringe barrel and the tin-plated iron static magnetic shielding cover.

[0011] Optionally, operating panels are installed on opposite sides of the syringe barrel, a push plate is installed on the other end of the push rod, a through hole is opened on one side of the cover body, the through hole is connected to the connecting head, a threaded ring is installed on one side of the cover body, a threaded groove is provided on the inner wall of the syringe barrel, the threaded ring cooperates with the threaded groove, the threaded ring and the cover body form a stirring tank, the stirring blade is located in the stirring tank, and a sealing gasket is installed on one side of the cover body.

[0012] Optionally, a connecting ring block is installed on the top of the syringe barrel, one end of the rotating rod is rotatably engaged on the connecting ring block, a through groove is opened on the top of the syringe barrel, the push rod is slidably engaged in the through groove, a sealing hole is opened on one side of the piston plate, the rotating rod is located in the sealing hole, a sealing block is installed on the inner wall of the sealing hole, a spiral groove is opened on the circumferential side of the rotating rod, and the sealing block is slidably engaged in the spiral groove.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. The stirrable magnetic nanoparticle syringe sucks the nanoparticle solution into the syringe barrel through the connector of the cover body. When the push rod is pressed to drive the piston plate to push the nanoparticle solution inside the syringe barrel forward, the forward-moving piston plate drives the rotating rod to rotate inside the syringe barrel, thereby driving the stirring blade to rotate, reducing the formation of large agglomerates of magnetic nanoparticles during injection, and avoiding the situation where the vibration of the motor easily causes the instability of the syringe.

[0015] 2. The stirrable magnetic nanoparticle syringe places the syringe barrel into a tin-plated iron static magnetic shielding cover and closes the shielding cover. At this time, the external magnetic field can be effectively shielded to prevent the magnetic nanoparticles from agglomerating due to interference from the external magnetic field. During the injection process, the injection volume can be observed and controlled through the visual windows located on the syringe barrel and the tin-plated iron static magnetic shielding cover.

[0016] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the syringe barrel of the utility model embodiment;

[0020] Figure 3 It is a structural schematic diagram of the overall cross-sectional view of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the connection between the rotating rod and the piston plate in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure inside the syringe barrel of the utility model embodiment;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-syringe barrel, 2-cover body, 3-push rod, 4-operating plate, 5-push plate, 6-connector, 7-rotating rod, 8-piston plate, 9-stirring blade, 10-threaded ring, 11-stirring groove, 12-through hole, 13-sealing hole, 14-sealing block, 15-spiral groove, 16-threaded groove, 17-sealing gasket, 18-connecting ring block, 19-through groove, 20-tinned iron static magnetic shielding cover, 21-visible window.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will now be further described in detail with reference to the accompanying drawings.

[0027] See also Figure 1-5 As shown, in this embodiment, a stirrable magnetic nanoparticle syringe is provided, comprising a syringe barrel 1, a cover 2 is provided at the bottom of the syringe barrel 1, a connector 6 is provided on one side of the cover 2, a push rod 3 is slidably fitted inside the syringe barrel 1, and a stirring assembly is provided inside the syringe barrel 1;

[0028] The stirring assembly includes a rotating rod 7 rotatably engaged inside the syringe barrel 1, a stirring blade 9 installed at one end of the rotating rod 7, and a piston plate 8 installed at one end of the push rod 3. The piston plate 8 is slidably engaged in the syringe barrel 1, the piston plate 8 cooperates with the rotating rod 7, and the stirring blade 8 is located on the side close to the cover body 2.

[0029] One aspect of the application of this embodiment is: when using the nanoparticle syringe, the nanoparticle solution is sucked into the syringe barrel 1 through the connector 6 of the cover body 2, and when the push rod 3 is pressed to drive the piston plate 8 to push the nanoparticle solution inside the syringe barrel 1 forward, the forward-moving piston plate 8 drives the rotating rod 7 to rotate inside the syringe barrel 1, thereby driving the stirring blade 9 to rotate, thereby reducing the formation of large agglomerates of magnetic nanoparticles during injection, and avoiding the situation where vibration caused by the motor easily causes instability of the syringe.

[0030] The syringe barrel 1 of the present embodiment is externally sleeved with a tin-plated iron static magnetic shielding cover 20, and both the syringe barrel 1 and the tin-plated iron static magnetic shielding cover 20 are provided with a visual window 21; by placing the syringe barrel 1 into the tin-plated iron static magnetic shielding cover 20 and closing the shielding cover, the external magnetic field can be effectively shielded to prevent the magnetic nanoparticles from agglomerating due to interference from the external magnetic field, and the injection amount can be observed and controlled through the visual window 21 located on the syringe barrel 1 and the tin-plated iron static magnetic shielding cover 20 during the injection process.

[0031] In this embodiment, operation panels 4 are installed on opposite sides of the syringe barrel 1, a push plate 5 is installed on the other end of the push rod 3, a through hole 12 is opened on one side of the cover body 2, the through hole 12 is communicated with the connector 6, a threaded ring 10 is installed on one side of the cover body 2, a threaded groove 16 is provided on the inner wall of the syringe barrel 1, the threaded ring 10 cooperates with the threaded groove 16, the threaded ring 10 and the cover body 2 form a stirring groove 11, the stirring blade 9 is located in the stirring groove 11, and a sealing gasket 17 is installed on one side of the cover body 2; by arranging a detachable cover body 2 at the bottom of the syringe barrel, it is convenient to clean the stirring blade 9 inside it, and the stirring blade 9 is located in the stirring groove 11, which reduces the situation where the piston plate is pushed to the bottom of the syringe barrel 1 and contacts with it.

[0032] A connecting ring block 18 is installed on the top of the syringe barrel 1 of this embodiment, and one end of the rotating rod 7 is rotatably engaged on the connecting ring block 18. A through groove 19 is opened on the top of the syringe barrel 1, and the push rod 3 slides in the through groove 19. A sealing hole 13 is opened on one side of the piston plate 8, and the rotating rod 7 is located in the sealing hole 13. A sealing block 14 is installed on the inner wall of the sealing hole 13. A spiral groove 15 is opened on the circumferential side of the rotating rod 7, and the sealing block 14 slides in the spiral groove 15.

[0033] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A stirrable magnetic nanoparticle syringe, characterized in that: include: A syringe barrel (1), a cover (2) is arranged at the bottom of the syringe barrel (1), a connector (6) is arranged on one side of the cover (2), a push rod (3) is slidably fitted inside the syringe barrel (1), and a stirring assembly is arranged inside the syringe barrel (1); The stirring assembly comprises a rotating rod (7) rotatably fitted inside a syringe barrel (1), a stirring blade (9) mounted on one end of the rotating rod (7), and a piston plate (8) mounted on one end of a push rod (3). The piston plate (8) is slidably fitted inside the syringe barrel (1), the piston plate (8) is matched with the rotating rod (7), and the stirring blade (9) is located on a side close to the cover body (2).

2. The stirrable magnetic nanoparticle syringe according to claim 1, characterized in that: The syringe barrel (1) is externally sleeved with a tin-plated iron static magnetic shielding cover (20), and both the syringe barrel (1) and the tin-plated iron static magnetic shielding cover (20) are provided with a visual window (21).

3. The stirrable magnetic nanoparticle syringe according to claim 2, characterized in that: An operating plate (4) is installed on opposite sides of the syringe barrel (1), a push plate (5) is installed on the other end of the push rod (3), and a through hole (12) is opened on one side of the cover body (2), and the through hole (12) is connected to the connector (6).

4. The stirrable magnetic nanoparticle syringe according to claim 1, characterized in that: A threaded ring (10) is arranged on one side of the cover body (2), a threaded groove (16) is arranged on the inner wall of the syringe barrel (1), the threaded ring (10) and the threaded groove (16) cooperate with each other, the threaded ring (10) and the cover body (2) form a stirring groove (11), the stirring blade (9) is located in the stirring groove (11), and a sealing gasket (17) is arranged on one side of the cover body (2).

5. The stirrable magnetic nanoparticle syringe according to claim 1, characterized in that: A connecting ring block (18) is installed on the top of the syringe barrel (1), one end of the rotating rod (7) is rotatably engaged with the connecting ring block (18), a through groove (19) is opened on the top of the syringe barrel (1), and the pushing rod (3) is slidably engaged in the through groove (19).

6. The stirrable magnetic nanoparticle syringe according to claim 1, characterized in that: A sealing hole (13) is provided on one side of the piston plate (8), the rotating rod (7) is located in the sealing hole (13), a sealing block (14) is installed on the inner wall of the sealing hole (13), a spiral groove (15) is provided on the circumference of the rotating rod (7), and the sealing block (14) is slidably fitted in the spiral groove (15).

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