Pipette, sampling structure and sample adding structure

Abstract

The utility model relates to the technical field of sample dyeing and flaking, in particular to a pipette, a sampling structure and a sample adding structure. The transfer pipette comprises a cylindrical transfer pipette body, and a vertically through sampling hole is formed in the transfer pipette body; the injector clamping part is annularly arranged on the outer side of the transfer pipette body; and the filter screen clamping part is annularly arranged at the bottom of the transfer pipette body. The pipette provided by the utility model can be connected with the sampling injector and the sample adding bin, so that corollary equipment required in the working processes of transferring, vibrating and centrifuging a sample is reduced, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sample staining and slide making, in particular to a pipette, a sampling structure and a sample adding structure. Background Art

[0002] The existing staining and slide making process basically involves transferring samples from storage bottles to centrifuge tubes. In order to obtain effective staining samples, the centrifuge tubes containing samples need to be centrifuged and shaken. Finally, the effective samples are placed in the slide making machine for staining. The entire process is designed to include shakers, mixers, centrifuges, pipettes, and staining slide making machines.

[0003] The traditional staining and slide making process is relatively cumbersome. Before staining and slide making, the samples need to be transferred, shaken, centrifuged, and other pre-processing work. The entire workflow is cumbersome and requires a lot of supporting equipment, which is costly and takes up space, and is not suitable for small and medium-sized hospitals. Utility Model Content

[0004] The purpose of the utility model is to provide a pipette to solve the above technical problems;

[0005] The purpose of the utility model is also to provide a sampling structure to solve the above technical problems;

[0006] The utility model also aims to provide a sample adding structure to solve the above technical problems.

[0007] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0008] A pipette, comprising:

[0009] A cylindrical pipette body, wherein a sampling hole is provided in the pipette body and passes through the pipette body from top to bottom;

[0010] A syringe clamping portion, arranged around the outer side of the pipette body;

[0011] The filter screen clamping part is arranged around the bottom of the pipette body.

[0012] Preferably, it further comprises a syringe limiting portion, which is arranged around the outer side of the pipette body and is located above the syringe clamping portion.

[0013] Preferably, the pipette body is a cylindrical structure, the syringe clamping part is a circular ring structure, the filter clamping part is a truncated cone structure with the smaller surface facing downward, the bottom surface of the filter clamping part is provided with an opening that passes through the sampling hole, and the side surface of the filter clamping part has a set curvature.

[0014] Preferably, it further comprises a pump body, wherein the pump body is connected to the sampling hole via a pipeline, and the pump body can controllably apply positive pressure or negative pressure to the sampling hole.

[0015] Preferably, it further comprises a first sealing member, which is arranged between the outer side wall of the pipe extending into the sampling hole and the inner side wall of the sampling hole.

[0016] Preferably, it also includes,

[0017] A fixing member is detachably connected to the upper end of the pipette, wherein a through inner hole is provided in the fixing member, and the through inner hole in the fixing member is connected to the sampling hole;

[0018] A pump body is connected to the through inner hole of the fixing member through a pipeline, and the pump body can controllably apply positive pressure or negative pressure to the sampling hole.

[0019] Preferably, the method further comprises: a first sealing member provided between the outer side wall of the pipe extending into the fixing member and the inner side wall of the through inner hole of the fixing member.

[0020] Preferably, the syringe clamping portion and the filter clamping portion both have smooth and flat outer surfaces, and the syringe clamping portion and the filter clamping portion are both rigid structures.

[0021] A sampling structure comprising:

[0022] Syringe body;

[0023] A pipette is connected to the upper end of the syringe body, wherein at least the portion of the pipette including the syringe clamping portion is located in the syringe body, the sampling hole is connected to the inner cavity of the syringe body, and the outer side of the syringe clamping portion is clamped on the inner wall of the syringe body.

[0024] A sample adding structure, comprising:

[0025] A sample loading chamber, wherein a filter screen is provided in the sample loading chamber;

[0026] A pipette is connected to the upper end of the sample loading chamber, the sampling hole is communicated with the inner cavity of the sample loading chamber, the bottom surface of the filter clamping part abuts against the surface of the filter, and the outer edge of the filter clamping part is clamped on the inner wall of the sample loading chamber.

[0027] Beneficial effects of the utility model: Due to the adoption of the above technical scheme, the utility model provides a pipette that can be connected to a sampling syringe and a sample loading chamber, reduces the supporting equipment required in the sample transfer, shaking, and centrifugation workflows, has a simple structure, and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a schematic diagram of the structure of the pipette in the embodiment of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the sampling structure in the embodiment of the utility model.

[0030] Figure 3 A cross-sectional view of a sampling structure in an embodiment of the utility model;

[0031] Figure 4 This is a structural schematic diagram of the sample adding structure in the embodiment of the utility model;

[0032] Figure 5 It is a cross-sectional view of the sample adding structure in the embodiment of the utility model;

[0033] Figure 6 It is a cross-sectional view of another pipette in an embodiment of the utility model.

[0034] In the attached drawings: 1. pipette body; 11. sampling hole; 12. syringe clamping part; 13. filter clamping part; 14. syringe limiting part; 15. fixing part; 2. syringe body; 3. sample loading chamber; 31. second sealing part. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0038] A pipette, such as Figures 1 to 6 As shown, including,

[0039] A cylindrical pipette body 1 is provided with a sampling hole 11 extending vertically therein;

[0040] The syringe clamping portion 12 is disposed around the outer side of the pipette body 1;

[0041] The filter mesh retaining portion 13 is disposed around the bottom of the pipette body 1 .

[0042] The syringe locking portion 12 is used to lock the pipette body 1 when the pipette is installed on the syringe body 2;

[0043] The filter mesh locking portion 13 is used to abut against the filter mesh when the pipette is installed on the sample loading chamber 3 to lock the pipette body 1 in place.

[0044] The utility model directly installs the sample transfer and mixing work on the film making equipment; the pre-treatment of centrifugation is mainly to filter out effective samples, so a filter screen is directly added to the sample loading chamber 3. In order to meet the above functions, a pipette that can be connected to a syringe and a filter screen is provided, which directly replaces the work of a pipette machine and a centrifuge, reduces the supporting equipment required in the sample transfer, shaking, and centrifugation workflow, has a simple structure, and low manufacturing cost.

[0045] In a preferred embodiment, a syringe limiting portion 14 is further included, which is arranged around the outer side of the pipette body 1 and is located above the syringe locking portion 12 .

[0046] Specifically, the syringe limiting portion 14 is located above the syringe clamping portion 12 and is at a set distance from the syringe clamping portion 12. The syringe limiting portion 14 is used to limit the pipette when the pipette is installed on the syringe body 2. The sample transfer requires the syringe to pierce the preservation bottle and then extract the sample inside. The lower surface of the syringe limiting portion 14 contacts the top of the syringe body 2 to prevent the pipette from breaking the syringe when the pipette is installed.

[0047] In a preferred embodiment, the pipette body 1 is a cylindrical structure, the syringe clamping portion 12 is a circular ring structure, the filter clamping portion 13 is a truncated cone structure with the smaller surface facing downward, the bottom surface of the filter clamping portion 13 is provided with an opening that passes through the sampling hole 11, and the side surface of the filter clamping portion 13 has a set curvature.

[0048] Specifically, the filter clamping portion 13 is used to abut against the filter when the pipette is installed on the sample loading chamber 3. To ensure normal use, the sizes of the pipette, syringe clamping portion 12, and filter clamping portion 13 should be compatible with the sizes of the syringe and the sample loading chamber 3. When the pipette clamps the syringe body 2 or the sample loading chamber 3, the overall airtightness must also be ensured.

[0049] Specifically, the outermost extensions of the syringe clamping portion 12 and the filter clamping portion 13 are in an arc-shaped structure. When the bottom surface of the filter clamping portion 13 contacts the upper surface of the filter, the outermost edge of the filter clamping portion 13 is also clamped on the inner wall of the sample loading chamber 3.

[0050] In a preferred embodiment, a pump body is further included. The pump body is connected to the sampling hole 11 through a pipeline. The pump body can controllably apply positive pressure or negative pressure to the sampling hole 11.

[0051] Specifically, the pump body is used to apply positive pressure or negative pressure to the pipette body 1. When the pipette is connected to the syringe body 2 and is ready to extract a sample, the sample is drawn into the sampling hole 11 by the negative pressure applied by the pump body; when the pipette is connected to the sample loading chamber 3 and is ready to inject the sample, the sample is pressed into the sample loading chamber 3 by the positive pressure applied by the pump body.

[0052] In a preferred embodiment, it further comprises a first sealing member, which is disposed between the outer wall of the pipe extending into the sampling hole 11 and the inner wall of the sampling hole 11 .

[0053] Specifically, the pipeline is connected in the sampling hole 11, and the first sealing member is used to ensure the air tightness between the pipette and the pump body.

[0054] More specifically, refer to Figure 6 As shown, the aperture of the upper end of the sampling hole 11 and the pipe connection portion is appropriately larger than the aperture of the remaining portion of the sampling hole 11, and the excess aperture difference is used to place the first sealing member.

[0055] In a preferred embodiment, please refer to Figure 1 As shown, it also includes,

[0056] The fixing member 15 is detachably connected to the upper end of the pipette, and a through inner hole is provided in the fixing member 15, and the through inner hole in the fixing member 15 is communicated with the sampling hole 11;

[0057] The pump body is connected to the through inner hole of the fixing member 15 through a pipeline, and the pump body can controllably apply positive pressure or negative pressure to the sampling hole 11.

[0058] Specifically, the fixing member 15 is used to mount the pipette on the external motion module and realize the automatic movement of the pipette through the motion module. The fixing member 15 is connected to the pipette through a threaded hole.

[0059] Specifically, the pump body is used to apply positive pressure or negative pressure to the pipette body 1. When the pipette is connected to the syringe body 2 and is ready to extract a sample, the sample is drawn into the sampling hole 11 by the negative pressure applied by the pump body; when the pipette is connected to the sample loading chamber 3 and is ready to inject the sample, the sample is pressed into the sample loading chamber 3 by the positive pressure applied by the pump body.

[0060] In a preferred embodiment, the first sealing member is further provided between the outer side wall of the pipe extending into the fixing member 15 and the inner side wall of the through inner hole of the fixing member 15 .

[0061] Specifically, the pipeline is connected to the through inner hole of the fixing member 15, and at least a part of the pipeline extends into the sampling hole 11. The first sealing member is used to ensure the air tightness between the pipette and the pump body.

[0062] In a preferred embodiment, the syringe clamping portion 12 and the filter clamping portion 13 both have smooth and flat outer surfaces, and both the syringe clamping portion 12 and the filter clamping portion 13 are rigid structures.

[0063] Specifically, the pipette can be made of stainless steel and mirror-polished to avoid rust and size deviation caused by rough processing surface. The rigid structure is not easily deformed, which can ensure the stability of the pipette during use.

[0064] A sampling structure such as Figure 2 , Figure 3 As shown, including,

[0065] Syringe body 2;

[0066] The pipette is connected to the upper end of the syringe body 2. The pipette is the pipette in any one of the embodiments. At least the portion of the pipette including the syringe clamping portion 12 is located inside the syringe body 2. The sampling hole 11 is connected to the inner cavity of the syringe body 2. The outer side of the syringe clamping portion 12 is clamped on the inner wall of the syringe body 2.

[0067] Specifically, the syringe limiting portion 14 is located above the syringe clamping portion 12 and is at a set distance from the syringe clamping portion 12. The syringe limiting portion 14 is used to limit the pipette when the pipette is installed on the syringe body 2. The sample transfer requires the syringe to pierce the preservation bottle and then extract the sample inside. The lower surface of the syringe limiting portion 14 contacts the top of the syringe body 2 to prevent the pipette from breaking the syringe when the pipette is installed.

[0068] Specifically, when the pipette is connected to the syringe body 2 to extract a sample, the sample is extracted into the sampling hole 11 by the negative pressure applied by the pump body.

[0069] A sample addition structure, such as Figure 4 , Figure 5 As shown, including,

[0070] A sample loading chamber 3, wherein a filter screen is arranged in the sample loading chamber 3;

[0071] The pipette is connected to the upper end of the sample loading chamber 3. The pipette is a pipette in any one of the embodiments. The sampling hole 11 is connected to the inner cavity of the sample loading chamber 3. The bottom surface of the filter clamping part 13 abuts against the surface of the filter, and the outer edge of the filter clamping part 13 is clamped on the inner wall of the sample loading chamber 3.

[0072] Specifically, when the pipette is connected to the upper end of the sample loading chamber 3, the lower surface of the syringe limiting portion 14 contacts the top of the sample loading chamber 3, and the connection between the bottom and the side of the filter clamping portion 13 and the side of the filter clamping portion 13 have a certain curvature for matching with the filter.

[0073] Specifically, a second sealing member 31 is disposed on the inner side wall of the sample loading chamber 3 , and the syringe clamping portion 12 is clamped on the inner side surface of the second sealing member 31 to ensure the airtightness of the pipette and the sample loading chamber 3 .

[0074] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipette, characterized in that: include, A cylindrical pipette body (1), wherein the pipette body (1) is provided with a sampling hole (11) which passes through the pipette body from top to bottom; A syringe clamping portion (12) is arranged around the outer side of the pipette body (1); The filter screen clamping portion (13) is arranged in a ring at the bottom of the pipette body (1).

2. The pipette according to claim 1, characterized in that It also comprises a syringe limiting portion (14), which is arranged around the outside of the pipette body (1) and is located above the syringe clamping portion (12).

3. The pipette according to claim 1, characterized in that The pipette body (1) is a cylindrical structure, the syringe clamping portion (12) is a circular ring structure, the filter clamping portion (13) is a truncated cone structure with a smaller surface facing downward, the bottom surface of the filter clamping portion (13) is provided with an opening that passes through the sampling hole (11), and the side surface of the filter clamping portion (13) has a set curvature.

4. The pipette according to claim 1, characterized in that It also comprises a pump body, which is connected to the sampling hole (11) via a pipeline, and the pump body can controllably apply positive pressure or negative pressure to the sampling hole (11).

5. The pipette according to claim 4, characterized in that It also comprises a first sealing member, which is arranged between the outer wall of the pipeline extending into the sampling hole (11) and the inner wall of the sampling hole (11).

6. The pipette according to claim 1, characterized in that Also includes, A fixing member (15) is detachably connected to the upper end of the pipette, wherein a through inner hole is provided in the fixing member (15), and the through inner hole in the fixing member (15) is connected to the sampling hole (11); A pump body is connected to the through inner hole of the fixing member (15) via a pipeline, and the pump body can controllably apply positive pressure or negative pressure to the sampling hole (11).

7. The pipette according to claim 6, characterized in that It also includes a first sealing member, which is arranged between the outer side wall of the pipe extending into the fixing member (15) and the inner side wall of the through inner hole of the fixing member (15).

8. The pipette according to claim 1, characterized in that The syringe clamping portion (12) and the filter clamping portion (13) both have smooth and flat outer surfaces, and the syringe clamping portion (12) and the filter clamping portion (13) are both rigid structures.

9. A sampling structure, characterized in that: include, Syringe body (2); A pipette connected to the upper end of the syringe body (2), the pipette being the pipette according to any one of claims 1 to 8, the portion of the pipette at least including the syringe clamping portion (12) being located inside the syringe body (2), the sampling hole (11) being connected to the inner cavity of the syringe body (2), and the outer side of the syringe clamping portion (12) being clamped on the inner wall of the syringe body (2).

10. A sample adding structure, characterized in that: include, A sample loading chamber (3), wherein a filter screen is arranged in the sample loading chamber (3); A pipette connected to the upper end of the sample loading chamber (3), the pipette being the pipette according to any one of claims 1 to 8, the sampling hole (11) being connected to the inner cavity of the sample loading chamber (3), the bottom surface of the filter mesh clamping portion (13) abutting against the surface of the filter mesh, and the outer edge of the filter mesh clamping portion (13) clamping on the inner wall of the sample loading chamber (3).

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