A pipette

Abstract

The utility model relates to a medical instrument especially relates to a pipette, including pipette body, the detachable setting of fixed assembly for lifting and moving away from the desktop fixed component that the pipette body's suction nozzle end part is used to the gun head surface of pipette body, fixed component includes the inner fixed part of wrapping in the gun head surface and the outer fixed part of wrapping in the outer surface of inner fixed part, the outer fixed part is n prism structure, wherein, n is equal to or greater than four, the pipette of the application because inner fixed part has a certain thickness and the outer fixed part is n prism structure, therefore fixed component forms the support on the circumferential surface of gun head, even when the pipette body accidental external force collision, although the collision position is random, still can reach the purpose of preventing the suction nozzle and the desktop contact.

Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to a pipette. Background Technology

[0002] A pipette, also called a pipette gun, is a measuring tool used to transfer liquid from one container to another within a certain volume range. In clinical applications, it is used to extract test reagents in allergen detection.

[0003] However, when using current pipettes, if there is no pipette holder, the pipette tip is prone to contacting the table, which can cause sample contamination when aspirating samples. In addition, when carrying the pipette, it is necessary to carry the holder together, which is inconvenient. In order to solve this problem...

[0004] Chinese utility model patent (CN222901135U) discloses a portable semi-automatic pipette, including a pipette body. An opening groove is provided on one side of the pipette body. A connecting column is rotatably connected inside the opening groove. A support plate is fixedly connected to the outside of the connecting column. A first gear is fixedly connected to the outside of the connecting column. A second gear is meshed with one side of the first gear. The second gear is rotatably connected to the inner wall of the opening groove. An extension mechanism is provided at one end of the support plate.

[0005] While the above structure solves the problems of pipettes easily coming into contact with the table when there is no pipette holder, leading to sample contamination during sample aspiration, and the need to carry the pipette along with the holder, in actual use, placing the pipette on the table makes it easier for medical staff to bump into various random parts of the pipette surface. However, the support structure of the above solution cannot still prevent the tip from coming into contact with the table when any part of the pipette surface is accidentally hit by an external force.

[0006] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0007] This utility model provides a pipette. Because the inner fixing component has a certain thickness and the outer fixing component is an n-prism structure, the fixing components form support on the circumferential surface of the pipette tip. Even if the pipette body is accidentally hit by an external force, although the collision position is random, it can still achieve the purpose of preventing the tip from contacting the table.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows: a pipette, comprising a pipette body, wherein a fixing component is detachably disposed on the tip surface of the pipette body for raising the tip end of the pipette body away from the table.

[0009] The fixing component includes an inner fixing member wrapped around the surface of the gun head and an outer fixing member that is wrapped around the outer surface of the inner fixing member. The outer fixing member is an n-prism structure, where n is greater than or equal to four.

[0010] As a further improvement, mounting holes are provided on the surfaces of both the inner and outer fixing parts, with the two mounting holes being positioned opposite each other. A fixing groove is provided on the inner fixing part for the gun head to pass through, and the mounting holes communicate with the interior of the fixing groove.

[0011] As a further improvement, the opening of the mounting port on the inner fastener is smaller than the mounting port on the surface of the outer fastener, the inner fastener is a rubber fastening sleeve, and the outer fastener is a plastic fastening sleeve.

[0012] A dustproof component is slidably mounted on the external fixing component to cover the nozzle position at the end of the gun head.

[0013] As a further improvement, the dustproof component includes a sliding rod and a dust cover fixed to the end of the sliding rod near the suction nozzle. A base is fixedly provided on the surface of the outer fixing component, and a through groove is provided on the base. The sliding rod passes through the through groove and penetrates the base, and the surface of the sliding rod is in interference contact with the inner wall of the through groove.

[0014] As a further improvement, n is greater than or equal to five, and the base is a rectangular structure with its edges flush with the two sides of the external fixing member.

[0015] As a further improvement, the dustproof component includes a sliding part and a dustproof part integrally formed therewith near the nozzle end. The surface of the outer fixing component is provided with a through groove, and the sliding part passes through the through groove to penetrate the interior of the outer fixing component, with the surface of the sliding part in interference contact with the inner wall of the through groove.

[0016] As a further improvement, the dustproof part has a cylindrical structure.

[0017] As a further improvement, the surface of the external fastener is formed with anti-slip texture.

[0018] As a further improvement, the nozzle surface is formed with an annular fixing portion whose outer diameter gradually decreases.

[0019] The above-mentioned technical solution of this utility model has the following beneficial effects: This utility model, through an inner fixing component or / and an inner fixing component with a certain thickness, with the fixing assembly wrapped around the outer surface of the pipette tip, and the outer fixing component being an n-prism structure, where n is greater than or equal to four, achieves the following: Firstly, when the user places the pipette directly flat on the table, the fixing assembly raises the tip of the pipette body and moves it away from the table, preventing the tip from contacting the table and causing contamination. Secondly, when the surface of the pipette body is accidentally impacted by an external force, even if the impact location is random, the fixing component has a certain thickness and the outer fixing component... The fixing component is an n-prism structure, so the fixing component forms support on the circumferential surface of the pipette tip. Even if the pipette body is accidentally hit by an external force, it can still prevent the tip from contacting the table. This achieves better support and protection for the pipette tip. On the other hand, since the external fixing component is an n-prism structure, where n is greater than or equal to four, that is, the external fixing component is a prism structure or a cylindrical structure. When the external fixing component is a prism structure, the corner positions provide better support for the pipette tip when the pipette body is accidentally hit by an external force, further preventing the pipette body from moving. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a pipette according to the present invention;

[0021] Figure 2 This is a partial structural diagram of the nozzle position of a pipette according to the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the fixing component of a pipette according to the present invention;

[0023] Figure 4 This is a schematic diagram of one embodiment of a dustproof component for a pipette according to the present invention;

[0024] Figure 5 This is a schematic diagram of one embodiment of a dustproof component for a pipette according to the present invention;

[0025] Figure 6 This is a schematic diagram of one embodiment of a dustproof component for a pipette according to the present invention.

[0026] Reference numerals: 1. Pipette body; 2. Pipette tip; 3. Nozzle; 301. Annular fixing part; 4. Fixing assembly; 401. Inner fixing part; 4011. Fixing through groove; 402. Outer fixing part; 403. Mounting port; 5. Dustproof part; 501. Sliding rod; 502. Dust cover; 503. Base; 504. Sliding part; 505. Dustproof part. Detailed Implementation

[0027] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples.

[0029] Please see Figures 1 to 6 As shown, the present invention discloses a fixing component 4 that is detachably disposed on the surface of the tip 2 of the pipette body 1 for raising the end of the nozzle 3 of the pipette body 1 and moving it away from the table.

[0030] The fixing component 4 includes an inner fixing member 401 that wraps around the surface of the gun head 2 and an outer fixing member 402 that fixes the outer surface of the inner fixing member 401. The outer fixing member 402 is an n-prism structure, where n is greater than or equal to four.

[0031] The pipette body 1 of this application is a pipette in the prior art. This application does not limit the specific model. The pipette tip 2 described in this application is a tubular structure that extends from the hand-held end of the pipette to the nozzle 3 end when the pipette is picking up liquid. The diameter of the pipette tip 2 gradually becomes thinner from the hand-held end to the nozzle 3 end.

[0032] In this application, the thickness of the inner fixation member 401 and / or the outer fixation member 402 can be set according to the needs or different models of the pipette body 1. The thickness of the inner fixation member 401 and the outer fixation member allows the tip 3 to be raised to a certain height. When the pipette body 1 is placed on the table, the tip 3 can be raised away from the table and placed in a horizontal, upward or downward tilted position. The detachable fixing component 4 is suitable for a variety of different application scenarios, matches different application requirements, is easy to disassemble and replace, and saves the storage space of the pipette.

[0033] Since the outer surface of the inner fixing member 401 fixes and wraps around the outer fixing member 402, and the inner fixing member 401 wraps around the outer surface of the gun head 2, one possible structure of the fixing assembly 4 is:

[0034] The inner fixing component 401 and the outer fixing component 402 are circumferentially closed structures. The inner fixing component 401 has a fixing groove 4011 for the gun head 2 to pass through. The shape of the fixing groove 4011 is adapted to the surface of the gun head 2. When the fixing component 4 is installed on the surface of the gun head 2, the fixing component 4 is directly sleeved on the surface of the gun head 2 from the end of the gun head 2 near the nozzle 3 through the fixing groove 4011, making the installation process more convenient.

[0035] One possible structure for fixing component 4 is:

[0036] Both the inner fixing member 401 and the outer fixing member 402 have mounting holes 403 on their surfaces, and the two mounting holes 403 are in overlapping positions. The inner fixing member 401 has a fixing groove 4011 for the gun head 2 to pass through. The mounting holes 403 are in communication with the fixing groove 4011. When the fixing component 4 is installed on the surface of the gun head 2, the fixing component 4 is directly sleeved on the surface of the gun head 2 through the mounting hole 403. This further avoids touching the nozzle 3 at one end of the gun head 2 during the installation process and reduces contamination of the nozzle 3.

[0037] The inner fixing member 401 and / or the inner fixing member 401 in this application have a certain thickness. The fixing component 4 wraps around the outer surface of the pipette tip 2, and the outer fixing member 402 has an n-prism structure, where n is greater than or equal to four. On the one hand, when the user places the pipette directly flat on the table, the fixing component 4 raises the tip 3 of the pipette body 1 and moves it away from the table, preventing the tip 3 from contacting the table and causing contamination. On the other hand, when the surface of the pipette body 1 is accidentally hit by an external force, although the impact position is random, the inner fixing member 401 has a certain thickness and the outer fixing member 402 has an n-prism structure. Therefore, the fixing component 4 provides support on the circumferential surface of the pipette tip 2, so that even if the pipette body 1 is accidentally hit by an external force, it can still prevent the tip 3 from contacting the table, thus achieving better support and protection for the pipette tip 2 of the pipette body 1. On the other hand, since the external fixing component 402 is an n-prism structure, where n is greater than or equal to four, that is, the external fixing component 402 is a prism structure or a cylindrical structure. When the external fixing component 402 is a prism structure, the corner positions provide better support for the pipette tip 2 when the pipette body 1 is accidentally hit by an external force, further preventing the pipette body 1 from moving.

[0038] Please refer to the following: Figure 3 as well as Figure 6 As shown, specifically, mounting openings 403 are provided on the surfaces of both the inner fixing member 401 and the outer fixing member 402, and the two mounting openings 403 are in overlapping positions. The inner fixing member 401 has a fixing groove 4011 for the gun head 2 to pass through. The mounting opening 403 communicates with the inside of the fixing groove 4011. When the fixing component 4 is installed on the surface of the gun head 2, the inner fixing member 401 and the outer fixing member 402 are slightly deformed, and the opening of the mounting opening 403 is enlarged. Then, the fixing component 4 is directly sleeved on the surface of the gun head 2 through the mounting opening 403. This further avoids touching the nozzle 3 at one end of the gun head 2 during the installation process, reducing contamination of the nozzle 3.

[0039] Please refer to the following: Figure 3 as well as Figure 6As shown, specifically, the inner fixing member 401 is a rubber fixing sleeve, and the outer fixing member 402 is a plastic fixing sleeve. The opening of the mounting port 403 on the inner fixing member 401 is smaller than the mounting port 403 on the surface of the outer fixing member 402. The inner fixing member 401 being a rubber fixing sleeve increases the friction between the fixing component 4 and the surface of the gun head 2 after installation, resulting in a better fixing effect. The outer fixing member 402 protects the rubber fixing sleeve from dust accumulation on its surface, extending its service life. Because the opening of the mounting port 403 on the inner fixing member 401 is smaller than the mounting port 403 on the surface of the outer fixing member 402, it further facilitates the fixing of the component 4. During the disassembly and installation of the fixing component 4, since the inner fixing component 401 is a soft rubber fixing sleeve, for ease of understanding this solution, the mounting port 403 on the surface of the inner fixing component 401 is called the first mounting port 403, and the mounting port 403 on the surface of the outer fixing component 402 is called the second mounting port 403. In this way, during the installation or disassembly of the fixing component 4, the rubber fixing sleeves on both sides of the first mounting port 403 will cover the edges of the plastic fixing sleeves on both sides of the second mounting port 403, further preventing the edges of the plastic fixing sleeves on both sides of the second mounting port 403 from rubbing against the surface of the gun head 2 and causing scratches, making it more convenient to use.

[0040] Please refer to the following: Figure 4 As shown, specifically, a dustproof component 5 is slidably disposed on the surface of the outer fixing component 402 to cover the position of the suction nozzle 3 at the end of the gun head 2. During use, the dustproof component 5 can be slid along the surface of the outer fixing component 402 toward the suction nozzle 3 so that one end covers the suction nozzle 3 at the end of the gun head 2, thereby further preventing dust from entering the suction nozzle 3.

[0041] Please refer to the following: Figure 5 As shown, specifically, the dustproof component 5 includes a sliding rod 501 and a dust cover 502 fixed to the end of the sliding rod 501 near the nozzle 3. A base 503 is fixedly mounted on the surface of the outer fixing component 402. A through groove is provided on the base 503. The sliding rod 501 passes through the base 503 through the through groove, and the surface of the sliding rod 501 is in interference contact with the inner wall of the through groove. When it is necessary to cover the position of the nozzle 3, the sliding rod 501 can be pulled out from one end of the through groove towards the nozzle 3, and finally the position of the nozzle 3 is covered by the dust cover 502. When the sliding rod 501 is pulled out in the opposite direction, the covering of the nozzle 3 is released. Since the sliding rod 501 passes through the base 503 through the through groove and the surface of the sliding rod 501 is in interference contact with the inner wall of the through groove, the structure is simple and more convenient to use. Moreover, the sliding rod 501 can stop at any position without affecting the use of the pipette.

[0042] Please refer to the following: Figure 1 as well as Figure 6As shown, specifically, n is greater than or equal to five, the base 503 is a rectangular structure, and its edge is flush with the two sides of the external fixator 402. The number of bases 503 can be set according to specific needs. Since the external fixator 402 is an n-prism structure, where n is greater than or equal to five, the base 503 protrudes from the surface of the external fixator 402, and the base 503 is a rectangular structure with its edge flush with the two sides of the external fixator 402. This makes one side surface of the rectangular base 503 form a certain angle with the surfaces of the two adjacent external fixators 402. When the pipette body 1 is accidentally bumped and rotated, no matter which direction the pipette body 1 rotates relative to the two sides of the base 503, when it rotates to the side of the external fixator 402 where the base 503 is located, the base 503 achieves the purpose of preventing the pipette body 1 from continuing to rotate.

[0043] Please refer to the following: Figure 6 As shown, specifically, the dustproof component 5 includes a sliding part 504 and a dustproof part 505 integrally formed therewith near the nozzle 3. A through groove is formed on the surface of the outer fixing component 402. The sliding part 504 penetrates the interior of the outer fixing component 402 through the through groove, and the surface of the sliding part 504 is in interference contact with the inner wall of the through groove. When it is necessary to cover the nozzle 3, the sliding part 504 can be pulled out from one end of the through groove towards the nozzle 3, ultimately covering the nozzle 3 through the dustproof part 505. When part 504 is pulled out from the opposite direction, the obstruction of the nozzle 3 is removed. Since the sliding part 504 passes through the inner part of the outer fixing member 402 through the through groove and the surface of the sliding part 504 is in interference contact with the inner wall of the through groove, the structure is simple and the surface of the outer fixing member 402 is cleaner. When the pipette body 1 is placed on the table, the sliding part 504 is not affected regardless of which side of the outer fixing member 402 is in contact with the table, making it more convenient to use. Moreover, the sliding part 504 can stop at any position without affecting the use of the pipette.

[0044] Please refer to the following: Figure 5 as well as Figure 6 As shown, specifically, the dustproof part 505 has a cylindrical structure, which better shields the nozzle 3 and provides better dustproof effect.

[0045] Please refer to the following: Figure 1 As shown, specifically, the surface of the external fixing member 402 is formed with anti-slip texture, which further improves the fixing effect of the fixing component 4 on the pipette body.

[0046] Please refer to the following: Figure 1As shown, specifically, the surface of the suction nozzle 3 forms an annular fixing part 301 with a gradually decreasing outer diameter, so that the position of the suction nozzle 3 can be adapted to pipette tips of different capacities or diameters, making it more applicable and more convenient to use. The suction nozzle 3 is a device used in the prior art to be connected at the position of the suction nozzle 3 to receive the liquid drawn by the pipette. In this application, there is no need to limit its model and specifications.

[0047] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A pipette, comprising a pipette body (1), characterized in that: A fixing component (4) is detachably provided on the surface of the tip (2) of the pipette body (1) for raising the end of the nozzle (3) of the pipette body (1) away from the table. The fixing component (4) includes an inner fixing member (401) wrapped around the surface of the gun head (2) and an outer fixing member (402) that is wrapped around the outer surface of the inner fixing member (401). The outer fixing member (402) is an n-prism structure, where n is greater than or equal to four.

2. The pipette according to claim 1, characterized in that: An installation port (403) is provided on the surface of both the inner fixing member (401) and the outer fixing member (402). The two installation ports (403) are positioned opposite each other. A fixing groove (4011) is provided on the inner fixing member (401) for the gun head (2) to pass through. The installation port (403) is connected to the inside of the fixing groove (4011).

3. The pipette according to claim 2, characterized in that: The opening of the mounting port (403) on the inner fastener (401) is smaller than the mounting port (403) on the surface of the outer fastener (402). The inner fastener (401) is a rubber fastener sleeve, and the outer fastener (402) is a plastic fastener sleeve.

4. The pipette according to claim 3, characterized in that: A dustproof part (5) is slidably disposed on the external fixing part (402) to cover the position of the suction nozzle (3) at the end of the gun head (2).

5. The pipette according to claim 4, characterized in that: The dustproof component (5) includes a sliding rod (501) and a dust cover (502) fixed to one end of the sliding rod (501) near the suction nozzle (3). A base (503) is fixedly installed on the surface of the outer fixing component (402). A through groove is provided on the base (503). The sliding rod (501) passes through the base (503) through the through groove and the surface of the sliding rod (501) is in interference contact with the inner wall of the through groove.

6. The pipette according to claim 5, characterized in that: The n is greater than or equal to five, and the base (503) is a rectangular structure with its edges flush with the edges of the external fastener (402).

7. The pipette according to claim 4, characterized in that: The dustproof component (5) includes a sliding part (504) and a dustproof part (505) integrally formed therewith near the nozzle (3). The surface of the outer fixing component (402) is provided with a through groove. The sliding part (504) passes through the interior of the outer fixing component (402) through the through groove and the surface of the sliding part (504) is in interference contact with the inner wall of the through groove.

8. The pipette according to claim 7, characterized in that: The dustproof part (505) has a cylindrical structure.

9. The pipette according to claim 1, characterized in that: The surface of the external fastener (402) is formed with anti-slip texture.

10. The pipette according to any one of claims 1-9, characterized in that: The nozzle (3) has an annular fixing part (301) with a gradually decreasing outer diameter on its surface.

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