Adapter and sample rack assembly
By setting a multi-point limit structure on the housing of the adapter, the problem of reagent tube shaking in the adapter is solved, the stability and experimental accuracy of the reagent tube are achieved, and the assembly process is simplified.
Patent Information
- Application Number
- CN202421463395.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-06-24
AI Technical Summary
When the existing adapter is fixed with the reagent tube, the reagent tube is easily shaken, causing the sampling needle to collide with the inner wall of the reagent tube or deviate from the center of the tube body, affecting the accuracy of the sample suction and the residual liquid.
At least two limiting structures are provided on the housing of the adapter, and the different parts of the reagent tube are restricted, including the bottom and peripheral wall limits. The elastic member and the inner wall limit structure of the housing are adopted to enhance stability, and the shape of the reagent tube is matched with the shape of the reagent tube to ensure the stability of the reagent tube in the receiving cavity.
It improves the stability of the reagent tube in the adapter, ensures accurate liquid extraction of the sampling needle, reduces shaking of the reagent tube, simplifies the assembly and disassembly process, and improves the accuracy of experimental testing.
Smart Images
Figure CN223082816U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to an adapter and a sample rack assembly. Background Art
[0002] Reagent tubes are common experimental tools in biochemistry laboratories, such as cryogenic tubes and centrifuge tubes. They are containers for storing samples or reagents and have the following characteristics: 1) High sealing performance, usually ensuring that samples or reagents do not leak through rotary caps, threaded caps or press-fit caps; 2) Generally, volume scales and serial numbers are engraved on the tubes to facilitate sample identification and tracking during experiments; 3) The bottom of the bottle is generally conical, which can largely avoid volume waste of samples or reagents in experiments; 4) The materials used are resistant to acids, alkalis and low temperatures, facilitating low-temperature storage of reagents or samples.
[0003] Currently, when laboratories use different reagent tubes for experimental tests, different sample racks need to be equipped to support different reagent tubes for experiments, resulting in a large number of laboratory tools and cumbersome operations. To solve this problem, an adapter is disclosed in the prior art, and the adapter can be used to adapt to a variety of different reagent tubes.
[0004] However, the adapter usually only limits one section of the reagent tube, which easily causes the centrifuge tube and cryogenic tube to shake in the fixed holes of the adapter, resulting in problems such as the sampling needle being prone to collide with the inner wall of the reagent tube during testing and being unable to aspirate samples, or the sampling needle deviating from the center of the tube body, resulting in inaccurate sample aspiration and a large amount of residual liquid in the tube body. Summary of the Utility Model
[0005] In view of this, the utility model provides an adapter and a sample rack assembly to solve the problem that the reagent tube in the prior art is prone to shake in the adapter.
[0006] In a first aspect, the utility model provides an adapter, comprising:
[0007] A housing, which is provided with a receiving cavity, and the receiving cavity is adapted to place a reagent tube;
[0008] At least two limiting structures, which are arranged on the housing, and at least two of the limiting structures are adapted to limit different parts of the reagent tube.
[0009] Beneficial effects: By arranging at least two limiting structures at the housing, different parts of the reagent tube can be limited, so that the reagent tube is placed more stably in the receiving cavity, ensuring that the shaking amount of the reagent tube in the radial direction is minimized, and further ensuring accurate liquid sampling by the sampling needle during testing.
[0010] In an optional embodiment, the limiting structure comprises:
[0011] The first limiting structure is arranged inside the housing, at the lower end of the housing, and is adapted to limit the bottom of the reagent tube.
[0012] In an alternative embodiment, the first limiting structure is a limiting protrusion, and the limiting protrusion includes a limiting cavity, and the bottom of the reagent tube is adapted to be received in the limiting cavity.
[0013] In an alternative embodiment, the reagent tube includes a tapered bottom that is larger at the top and smaller at the bottom, and the limiting cavity is in a tapered shape that is smaller at the top and larger at the bottom.
[0014] Beneficial effect: By setting the shape of the limiting cavity to match the shape of the bottom of the reagent tube, the limiting cavity can more firmly limit the tapered bottom, improving the stability.
[0015] In an alternative embodiment, the reagent tube includes a cryotube, and the cryotube includes the tapered bottom and an annular peripheral wall arranged outside the tapered bottom, and the limiting cavity is adapted to be arranged between the tapered bottom and the annular peripheral wall to limit and fix the tapered bottom and the annular peripheral wall;
[0016] and / or, the reagent tube includes a centrifuge tube, and the centrifuge tube includes the tapered bottom, and the limiting cavity is adapted to be arranged outside the tapered bottom to limit and fix the tapered bottom.
[0017] In an alternative embodiment, the limiting structure includes:
[0018] A second limiting structure, arranged near the upper end of the housing, and adapted to limit at least a part of the peripheral wall of the reagent tube.
[0019] In an alternative embodiment, the second limiting structure is at least a part of the inner wall of the housing.
[0020] Beneficial effect: By directly setting the second limiting structure as at least a part of the inner wall of the housing, while limiting the peripheral wall of the reagent tube, there is no need to separately set a limiting structure additionally, so that the overall structural components of the adapter are fewer and the structure is more compact.
[0021] In an alternative embodiment,
[0022] the limiting structure is an elastic member;
[0023] and / or, the adapter includes a limiting portion, and the limiting portion is arranged outside the housing, and the limiting portion is adapted to cooperate with a sample rack to realize the limiting of the adapter;
[0024] and / or, the adapter includes a visible structure, and the visible structure is arranged on the housing.
[0025] Beneficial effects: By setting the limiting structure as an elastic member, the size range of the reagent tubes adapted by the adapter can be increased, and the adaptability of the adapter can be improved; by providing a limiting portion on the outer side of the housing of the adapter, when the adapter is assembled with the sample rack, it can play a certain limiting role on the adapter, making the adapter more firmly arranged in the sample rack, preventing the adapter from shaking, and further ensuring the accuracy of the experimental test; by providing a visible structure on the adapter, it is convenient to obtain the information of the reagent tubes and facilitate the identification and tracking of samples during the experiment.
[0026] In a second aspect, the present invention further provides a sample rack assembly, including:
[0027] A sample rack, on which a plurality of fixing positions are provided;
[0028] The above-mentioned adapter is arranged at the fixing position.
[0029] Beneficial effects: Since the sample rack assembly includes the above-mentioned adapter, it has the same technical effects as the adapter, which will not be repeated here.
[0030] In an optional implementation manner, the adapter is snap-fitted at the fixing position;
[0031] And / or, a plurality of adapters are provided, and the heights of the limiting protrusions of different adapters are different, and are adapted to make the bottoms of different reagent tubes therein at the same height.
[0032] Beneficial effects: By snap-fitting the adapter with the fixing position of the sample rack, while making the adapter firmly fixed to the sample rack, the assembly and disassembly are more convenient, facilitating the replacement of different adapters; since the bottom heights of different reagent tubes are different, by setting the heights of the limiting protrusions at the lower ends of different adapters to be different, it can be ensured that the bottoms of different reagent tubes in different adapters are at the same height, so as to avoid a large amount of residual liquid in some reagent tubes during use and the cumbersome conversion of the liquid suction height of the sampling needle. Description of the Drawings
[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0034] Figure 1 It is a schematic structural diagram of an adapter according to an embodiment of the present invention;
[0035] Figure 2Structural schematic diagram of a sample rack assembly according to an embodiment of the present utility model;
[0036] Figure 3 is Figure 2 a cross-sectional view;
[0037] Figure 4 Structural schematic diagram of a reagent tube assembled in the sample rack assembly;
[0038] Figure 5 is Figure 3 a cross-sectional view.
[0039] Explanation of reference numerals:
[0040] 100, adapter; 200, sample rack;
[0041] 1, housing; 2, limiting protrusion; 3, limiting portion; 4, accommodating cavity; 5, buckle; 6, card hole; 7, positioning groove; 8, positioning rib; 9, cryopreservation tube; 10, centrifuge tube; 11, conical bottom; 12, annular peripheral wall. Detailed implementation manners
[0042] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0043] Next, in combination with Figures 1 to 5 , the embodiments of the present utility model will be described.
[0044] According to an embodiment of the present utility model, on the one hand, an adapter is provided, including: a housing 1, the housing 1 is provided with an accommodating cavity 4, and a reagent tube is adapted to be placed in the accommodating cavity 4; at least two limiting structures are provided on the housing 1, and the at least two limiting structures are adapted to limit different parts of the reagent tube.
[0045] By providing at least two limiting structures at the housing 1, different parts of the reagent tube can be limited, so that when the reagent tube is placed in the accommodating cavity 4, it is placed more stably, ensuring that the shaking amount of the reagent tube in the radial direction is minimized, and further ensuring accurate liquid extraction by the sampling needle during testing.
[0046] Among them, there are two limiting structures in this embodiment, which are respectively arranged at the position near the upper end of the housing 1 and the lower end of the housing 1 to limit the upper and lower parts of the reagent tube. As an alternative embodiment, there may also be three limiting structures, which are respectively arranged at the upper, middle and lower positions of the housing 1 to limit the upper, middle and lower positions of the reagent tube. As an alternative embodiment, there may also be more limiting structures.
[0047] As Figure 1 shown, the limiting structure in this embodiment includes: a first limiting structure, which is arranged inside the housing 1, at the lower end of the housing 1, and is adapted to limit the bottom of the reagent tube.
[0048] Specifically, the first limiting structure is a limiting protrusion 2, and the limiting protrusion 2 includes a limiting cavity, and the limiting cavity is adapted to accommodate the bottom of the reagent tube.
[0049] The adapter 100 in this embodiment is mainly adapted to the cryopreservation tube 9 and the centrifuge tube 10. The cryopreservation tube 9 and the centrifuge tube 10 include a tapered bottom 11 with a larger upper part and a smaller lower part, and the limiting cavity is in a tapered shape with a smaller upper part and a larger lower part. By setting the shape of the limiting cavity to match the shape of the bottom of the reagent tube, the limiting cavity can limit the tapered bottom 11 more firmly and improve the stability. As an alternative embodiment, the adapter 100 may also be adapted to a blood collection tube or other reagent tubes. As an alternative embodiment, the limiting cavity may also be of other shapes as long as it matches the shape of the bottom of the reagent tube.
[0050] Since the centrifuge tube 10 only includes the tapered bottom 11, while the cryopreservation tube 9 includes the tapered bottom 11 and a cylindrical circumferential wall 12 arranged outside the tapered bottom 11, specifically, the circumferential wall 12 is cylindrical. Therefore, when the centrifuge tube 10 is placed in the accommodation cavity 4 of the adapter 100, the limiting protrusion 2 is outside the tapered bottom 11 of the centrifuge tube 10 to limit and fix the tapered bottom 11 of the centrifuge tube 10; when the cryopreservation tube 9 is placed in the accommodation cavity 4 of the adapter 100, the limiting protrusion 2 is outside the tapered bottom 11 of the cryopreservation tube 9 and inside the circumferential wall 12, that is, the limiting protrusion 2 is between the tapered bottom 11 and the circumferential wall 12 of the cryopreservation tube 9 to limit and fix the tapered bottom 11 and the circumferential wall 12 of the cryopreservation tube 9 at the same time, as Figure 5 shown.
[0051] The limiting structure in this embodiment includes: a second limiting structure, which is arranged near the upper end of the housing 1 and is adapted to limit at least part of the circumferential wall of the reagent tube.
[0052] Specifically, as Figure 5As shown, the second limiting structure is a part of the inner wall of the housing 1. At this time, the inner diameter of the accommodating cavity 4 of the housing 1 can be set to match the outer diameter of the reagent tube. By directly setting the second limiting structure as a part of the inner wall of the housing 1, while limiting the peripheral wall of the reagent tube, there is no need to separately set a limiting structure additionally, so that the overall structural components of the adapter 100 are fewer and the structure is more compact.
[0053] Of course, in other embodiments, the second limiting structure can also be the entire inner wall of the housing 1, or the second limiting structure is a separately provided limiting structure, such as a hollow limiting ring, located inside the inner wall of the housing 1.
[0054] In one embodiment, the first limiting structure is an elastic member. Specifically, it can be a silica gel member or a rubber member. By setting the first limiting structure as an elastic member, the size range of the reagent tubes adapted by the adapter 100 can be increased, and the adaptability of the adapter 100 can be improved. Of course, in other embodiments, it can also be that both the first limiting structure and the second limiting structure are elastic members, or the limiting structure is a non-elastic member.
[0055] Since the adapter 100 needs to be placed in the fixed position of the sample rack 200 during actual use, the adapter 100 in this embodiment includes a limiting portion 3, and the limiting portion 3 is provided on the outer side of the housing 1. The limiting portion 3 is adapted to cooperate with the sample rack 200 to realize the limitation of the adapter 100. By providing the limiting portion 3 on the outer side of the housing 1 of the adapter 100, it can play a certain limiting role on the adapter 100 when the adapter 100 is assembled with the sample rack 200, so that the adapter 100 is set more firmly in the sample rack 200, preventing the adapter 100 from shaking, and further ensuring the accuracy of the experimental test. As an alternative implementation, it can also be that the outer side of the housing 1 of the adapter 100 does not have a limiting portion 3.
[0056] As Figure 1 shown, along the circumferential direction of the adapter 100, a plurality of limiting portions 3 are provided, and the plurality of limiting portions 3 are evenly spaced. Specifically, the limiting portion 3 is a limiting rib.
[0057] Since reagent labels will be attached to the reagent tubes, for the convenience of observation, the adapter 100 in this embodiment includes a visible structure, and the visible structure is provided on the housing 1. Specifically, as Figure 1 shown, the visible structure is a through hole reserved on the housing 1. As an alternative implementation, it can also be that the visible structure is a transparent window.
[0058] Since the reagent tubes need to be placed on the sample rack 200, similarly, the sample rack 200 will also be provided with a visible structure at the same position as the reagent tubes for the convenience of the user to observe.
[0059] As Figure 1As shown, in this embodiment, the open end of the adapter 100 and the open end of the limiting protrusion 2 at the bottom are both provided with installation guiding slopes and rounded corners, which facilitate the placement of the reagent tube.
[0060] According to an embodiment of the present invention, on the other hand, a sample rack assembly is also provided, including: a sample rack 200, on which a plurality of fixing positions are provided; the above-mentioned adapter 100, which is arranged at the fixing position.
[0061] Specifically, the fixing positions on the sample rack 200 are placement holes.
[0062] Among them, the adapter 100 is snap-fitted at the fixing position. By snap-fitting the adapter 100 with the fixing position of the sample rack 200, while making the adapter 100 and the sample rack 200 firmly fixed, the assembly and disassembly are more convenient, which is convenient for replacing different adapters 100. As a changeable implementation manner, it can also be that the adapter 100 is directly arranged at the fixing position and is not fixedly connected to the fixing position. As a changeable implementation manner, it can also be that the adapter 100 and the fixing position are fixedly connected by other fixing methods, and no more restrictions are made here.
[0063] Specifically, the adapter 100 in this embodiment is provided with a buckle 5, and the fixing position is provided with a card hole 6 that cooperates with the buckle 5. As a changeable implementation manner, it can also be that the adapter 100 is provided with a card hole and the fixing position is provided with a buckle.
[0064] As Figure 1 shown, one buckle 5 is provided. As a changeable implementation manner, it can also be that a plurality of buckles 5 are provided on the adapter 100, and no more restrictions are made on the specific number of settings here.
[0065] As Figure 1 and Figure 2 shown, at the flange of the open end of the adapter 100 in this embodiment, a first positioning structure is provided, and a second positioning structure is correspondingly provided at the visible structure of the fixing position of the sample rack 200. The first positioning structure and the second positioning structure cooperate to achieve the positioning effect during the assembly of the adapter 100. Specifically, the first positioning structure is a positioning groove 7, and the second positioning structure is a positioning rib 8. As a changeable implementation manner, it can also be that the first positioning structure is a positioning rib and the second positioning structure is a positioning groove.
[0066] Among them, two positioning grooves 7 are provided, and two positioning ribs 8 are provided. As a changeable implementation manner, it can also be that one positioning groove 7 and one positioning rib 8 are respectively provided, or more.
[0067] As Figures 2 to 5As shown, there are five adapters 100, and the adapters 100 are arranged in one-to-one correspondence with the number of fixed positions. Moreover, the heights of the limiting protrusions 2 of different adapters 100 are different, and are suitable for keeping the bottoms of different reagent tubes therein at the same height. As a variable implementation manner, it can also be that the adapters 100 and the fixed positions are set to other numbers, which are not specifically limited here. As a variable implementation manner, it can also be that the heights of the limiting protrusions 2 of different adapters 100 are the same. As a variable implementation manner, it can also be that the number of fixed positions is greater than the number of adapters 100.
[0068] Since the bottom heights of different reagent tubes are different, for example, the conical bottoms 11 of the cryotubes 9 and the centrifuge tubes 10 are not at the same height, by setting the heights of the limiting protrusions 2 at the lower ends of different adapters 100 differently, it can be ensured that the bottoms of different reagent tubes in different adapters 100 are at the same height, so as to avoid a large amount of residual liquid in some reagent tubes and the cumbersome conversion of the liquid suction height of the sampling needle during use. Therefore, the limiting protrusion 2 at the bottom of the adapter 100 can well support the reagent tube while limiting the reagent tube, and at the same time ensure that the bottom heights of different reagent tubes are the same.
[0069] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. An adapter, characterized in that, Comprising: A housing (1), the housing (1) being provided with a receiving cavity (4), and the receiving cavity (4) being adapted to place a reagent tube therein; At least two limiting structures, provided on the housing (1), and at least two of the limiting structures being adapted to limit different parts of the reagent tube; The limiting structure includes: A first limiting structure, provided inside the housing (1) and located at the lower end of the housing (1), being adapted to limit the bottom of the reagent tube; the first limiting structure is a limiting protrusion (2), and the limiting protrusion (2) includes a limiting cavity, and the limiting cavity is adapted to accommodate the bottom of the reagent tube; A second limiting structure, provided near the upper end of the housing (1), being adapted to limit at least a part of the peripheral wall of the reagent tube; the second limiting structure is at least a part of the inner wall of the housing (1).
2. The adapter according to claim 1, characterized in that, The reagent tube includes a tapered bottom (11) with a larger upper part and a smaller lower part, and the limiting cavity is in a tapered shape with a smaller upper part and a larger lower part.
3. The adapter according to claim 2, wherein The reagent tube includes a cryopreservation tube (9), the cryopreservation tube (9) including the tapered bottom (11) and an annular peripheral wall (12) provided outside the tapered bottom (11), and the limiting cavity is adapted to be provided between the tapered bottom (11) and the annular peripheral wall (12) to limit and fix the tapered bottom (11) and the annular peripheral wall (12); And / or, the reagent tube includes a centrifuge tube (10), the centrifuge tube (10) including the tapered bottom (11), and the limiting cavity is adapted to be provided outside the tapered bottom (11) to limit and fix the tapered bottom (11).
4. The adapter according to any one of claims 1-3, wherein The limiting structure is an elastic member; And / or, the adapter (100) includes a visible structure, and the visible structure is provided on the housing (1).
5. The adapter according to any one of claims 1-3, characterized in that The adapter (100) includes a limiting portion (3), the limiting portion (3) being provided outside the housing (1), and the limiting portion (3) being adapted to cooperate with a sample rack (200) to realize the limitation of the adapter (100).
6. The adapter according to claim 5, characterized in that, Along the circumferential direction of the adapter (100), a plurality of the limiting portions (3) are provided, and the plurality of the limiting portions (3) are evenly spaced.
7. The adapter according to claim 5 or 6, characterized in that The limiting portion (3) is a limiting rib.
8. A sample rack assembly, characterized in that, Comprising: A sample rack (200), the sample rack (200) being provided with a plurality of fixing positions; The adapter (100) according to any one of claims 1 to 7, provided at the fixing positions.
9. The sample rack assembly according to claim 8, wherein, The adapter (100) is snap-fitted at the fixing positions; And / or, a plurality of the adapters (100) are provided, and the heights of the limiting protrusions (2) of different adapters (100) are different, being adapted to make the bottom ends of different reagent tubes therein at the same height.
10. The sample rack assembly according to claim 8 or 9, characterized in that, A first positioning structure is provided at the flange of the open end of the adapter (100), and a second positioning structure is correspondingly provided at the visible structure of the fixing position of the sample rack (200), and the first positioning structure and the second positioning structure cooperate to realize the positioning function during the assembly of the adapter (100).