Magnetic bead cleaning device for magnetic bar of extractor

Abstract

The utility model discloses a magnetic bead cleaning device for an extraction instrument magnetic bar, which comprises a mounting box, a recovery box is detachably embedded in the mounting box, the recovery box and the mounting box are in limit fit, a magnetic suction component is detachably arranged at the bottom of the mounting box, a magnetic bar body is detachably embedded in the recovery box, and the magnetic bar body is detachably embedded in the recovery box. The magnetic attraction component is in magnetic attraction fit with the magnetic beads on the magnetic bar body through the recycling box, the magnetic attraction force of the magnetic attraction component to the magnetic beads is larger than that of the magnetic bar body to the magnetic beads, the bottom in the recycling box and the bottom of the magnetic bar body are separated to form a magnetic bead adsorption space, the magnetic beads and the magnetic bar are conveniently separated, and the magnetic beads are recycled. And the magnetic beads and the magnetic bars are pre-cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical detection equipment technical field, especially is used for the magnetic bead cleaning device of extraction instrument magnet bar. BACKGROUND

[0002] In the use of the existing nucleic acid extractor, a magnetic sleeve needs to be arranged directly below the magnetic bar to prevent the magnetic bar from directly contacting the magnetic beads, nucleic acid and reagent, however, in actual application, the magnetic bar may directly contact the magnetic beads, nucleic acid and reagent due to various reasons such as forgetting to install the magnetic sleeve or the damage of the magnetic sleeve, therefore, the magnetic bar needs to be cleaned in time, and the magnetic beads may also be adsorbed on the magnetic bar at this time, in order to prevent cross contamination, the magnetic beads need to be separated from the magnetic bar, and the magnetic beads need to be recycled and concentrated for subsequent processing. SUMMARY

[0003] The utility model provides a magnetic bead cleaning device for extraction instrument magnet bar, aims at solving the problem that the magnetic bar of the existing laboratory extraction instrument directly contacts nucleic acid reagent and then the magnetic bar adsorbs magnetic beads.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The magnetic bead cleaning device for extraction instrument magnet bar, including installation box, the installation box is detachably embedded with recycling box, the recycling box and installation box form limit cooperation, the bottom of installation box is detachably equipped with magnetic attraction component, the magnetic bar body is detachably embedded in recycling box, the magnetic attraction component passes through recycling box and forms magnetic attraction cooperation with the magnetic bead on the magnetic bar body, and the magnetic attraction strength of magnetic attraction component to the magnetic bead is greater than the magnetic attraction strength of the magnetic bar body to the magnetic bead, the bottom of recycling box and the bottom of magnetic bar body form magnetic bead adsorption space.

[0006] As preferably, the recycling box and the installation box are concentric and coaxial, the outer wall of the recycling box is attached to the inner wall of the installation box, and the top of the recycling box is flush with the top of the installation box.

[0007] As more preferably, the recycling box is provided with a pull ear block arranged horizontally on both sides, the pull ear block is symmetrically arranged about the middle position of the recycling box, the opening of the installation box is provided with a limit slot corresponding to the pull ear block, and the pull ear block is embedded in the corresponding limit slot and forms a limit receiving cooperation with the corresponding limit slot.

[0008] Further, when the pull ear block is completely embedded in the corresponding limit slot, the top of the pull ear block is flush with the top of the opening of the installation box, and the pull ear block extends outward through the corresponding limit slot.

[0009] Further, the mounting box top is provided with two parallel arranged receiving plates, the receiving plates are slidingly matched with both sides of the mounting box opening, the magnetic rod body is arranged between the two receiving plates, and the two sides of the magnetic rod body top mounting plate are respectively received on the corresponding side receiving plate.

[0010] Specifically, a set of grooves are respectively arranged in parallel on the opposite sides of the mounting box opening top, the bottom of the receiving plate is provided with a sliding block corresponding to the groove, and the sliding block is embedded in the corresponding groove to form a sliding fit.

[0011] More specifically, the bottom of the mounting box is provided with a square mounting hole arranged horizontally parallel to the bottom of the mounting box, the size of the magnetic attraction component is consistent with the mounting hole, and the magnetic attraction component is embedded in the mounting hole in a sliding manner.

[0012] In detail, the magnetic attraction component is a block-shaped strong magnet.

[0013] As preferred, the appearance size of the mounting box is consistent with the appearance size of the corresponding deep hole plate of the extractor.

[0014] The beneficial effects of the utility model are as follows:

[0015] The magnetic rod body is inserted into the recovery box containing cleaning reagent, the magnetic beads are separated from the magnetic rod through the adsorption of the magnetic attraction component, and the magnetic beads are deposited at the bottom of the recovery box, and the magnetic rod body is taken out after soaking for a certain period of time for subsequent cleaning and disinfection.

[0016] The recovery box can be taken out alone, the dirt containing the magnetic beads can be treated centrally, and the installation and disassembly are also convenient.

[0017] The magnetic rod body can be placed on the receiving plate for soaking, the receiving plate can slide along the mounting box opening, and the size of the magnetic rod body can be adjusted appropriately, so that the applicability is good. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a mounting three-dimensional schematic view of the utility model;

[0019] Fig. 2 It is a dismounting three-dimensional schematic view of the utility model;

[0020] In the drawing: 1, mounting box; 11, mounting hole; 12, groove; 13, limiting groove;

[0021] 2, recovery box; 21, pull ear block;

[0022] 3, receiving plate; 31, sliding block;

[0023] 4, magnetic attraction component;

[0024] 5, magnetic rod body. DETAILED DESCRIPTION

[0025] The embodiments are further described below with reference to the drawings.

[0026] As shown in Figs. 1-2 a preferred embodiment 1, the magnetic bead cleaning device for extracting the magnetic rod of the instrument comprises a mounting box 1, a recycling box 2 is detachably embedded in the mounting box 1, the recycling box 2 is in limiting cooperation with the mounting box 1, a magnetic attraction component 4 is detachably arranged at the bottom of the mounting box 1, a magnetic rod body 5 is detachably embedded in the recycling box 2, the magnetic attraction component 4 is in magnetic attraction cooperation with the magnetic beads on the magnetic rod body 5 through the recycling box 2, and the magnetic attraction strength of the magnetic attraction component 4 on the magnetic beads is greater than that of the magnetic rod body 5 on the magnetic beads. A magnetic bead adsorption space is formed between the bottom of the recycling box 2 and the bottom of the magnetic rod body 5. The magnetic beads are separated from the magnetic rod body 5 and concentrated in the adsorption space by the magnetic attraction of the magnetic attraction component 4. Subsequently, the recycling box 2 can be directly removed for centralized treatment of the dirt containing the magnetic beads.

[0027] The recycling box 2 is concentric and coaxial with the mounting box 1, the outer wall of the recycling box 2 is attached to the inner wall of the mounting box 1, and the top of the recycling box 2 is flush with the top of the mounting box 1, which is convenient for installation and use.

[0028] The two sides of the recycling box 2 are provided with horizontally arranged pull ears 21, the pull ears 21 are symmetrically arranged about the middle position of the recycling box 2, the opening of the mounting box 1 is provided with a limiting groove 13 corresponding to each pull ear 21, and the pull ear 21 is embedded in the corresponding limiting groove 13 and forms a limiting receiving cooperation with the corresponding limiting groove 13.

[0029] When the pull ear 21 is completely embedded in the corresponding limiting groove 13, the top of the pull ear 21 is flush with the top of the opening of the mounting box 1, and the pull ear 21 extends outward through the corresponding limiting groove 13. On the one hand, the pull ear 21 can fix the position of the recycling box 2 to ensure the stability during soaking separation, and on the other hand, the pull ear 21 can be used as the fulcrum of the recycling box 2 to facilitate the installation or removal of the recycling box 2 through the pull ear 21.

[0030] The top of the mounting box 1 is provided with two parallel arranged receiving plates 3, the receiving plates 3 are in sliding cooperation with the two sides of the opening of the mounting box 1, the magnetic rod body 5 is arranged between the two receiving plates 3, and the two sides of the top mounting plate of the magnetic rod body 5 are received on the corresponding side receiving plate 3. When the magnetic rod body 5 is not under stress or power connection, the distance between the two receiving plates 3 can be adjusted according to the actual situation, so that the two sides of the top mounting plate of the magnetic rod body 5 are received on the corresponding side receiving plate 3, and the magnetic rod body 5 can be stably soaked. At the same time, the adsorption space between the bottom of the magnetic rod body 5 and the recycling box 2 is formed, which facilitates the complete separation of the magnetic beads from the magnetic rod after the magnetic beads are separated from the magnetic rod.

[0031] The mounting box 1 is provided with a plurality of grooves 12 on the opposite sides of the opening top, and the bottom of the receiving plate 3 is provided with a plurality of sliding blocks 31 corresponding to the grooves 12, and the sliding blocks 31 are embedded in the corresponding grooves 12 to form a sliding fit, so that the receiving plate 3 can slide along the opening of the mounting box 1, and the applicability is ensured.

[0032] The bottom of the mounting box 1 is provided with a square mounting hole 11 arranged horizontally, and the size of the magnetic component 4 is consistent with the mounting hole 11, and the magnetic component 4 is embedded in the mounting hole 11 in a sliding manner, so that the mounting and use are facilitated, and the uniformity of the magnetic force is ensured.

[0033] The magnetic component 4 is a block-shaped strong magnet, and the magnetic force is ensured.

[0034] As a preferred embodiment 2, the magnetic component 4 can be replaced by an electromagnet, so that the immersion process can be controlled by the control end outside the extraction instrument, such as a control switch or a computer, and the magnetic force can be ensured.

[0035] As a preferred embodiment 3, the appearance size of the mounting box 1 is consistent with the appearance size of the corresponding deep hole plate of the extraction instrument. Generally, there is a spare deep hole plate placement grid in the use process of the extraction instrument, especially for the extraction instrument with a rotating disc for placing the deep hole plate. In the beginning, the mounting box 1 and the recovery box 2 can be installed without the receiving plate 3, a proper amount of cleaning reagent is placed, the whole mounting box 1 is placed in the spare deep hole plate placement grid, when the magnetic rod is found to be contaminated, the magnetic sleeve is directly disassembled, the mounting box 1 is rotated to the position below the magnetic rod through the control end outside the extraction instrument, and the magnetic rod is immersed into the recovery box 2 through the telescopic mechanism of the extraction instrument. In this way, the rotating disc and the telescopic mechanism of the extraction instrument can be used to assist in separating the magnetic beads from the magnetic rod, and the magnetic rod can be directly disassembled for cleaning and disinfection, and the whole mounting box 1 is convenient to place and replace.

[0036] The working principle of the utility model is as follows:

[0037] The magnetic rod body 5 is inserted into the recovery box 2 containing the cleaning reagent, the magnetic beads are separated from the magnetic rod through the adsorption of the magnetic component 4, and the magnetic beads are deposited and concentrated at the bottom of the recovery box 2, and the magnetic rod body is taken out after a certain time for subsequent cleaning and disinfection.

[0038] The recovery box 2 can be taken out alone, the dirt containing the magnetic beads can be treated, and the mounting and dismounting are facilitated.

[0039] The magnetic rod body 5 can be placed on the receiving plate 3 for soaking, the receiving plate 3 can slide along the opening of the mounting box 1, and the size of the magnetic rod body 5 is properly adjusted, and a certain applicability is achieved.

Claims

1. A magnetic bead cleaning device for extracting a magnetic rod of an instrument, characterized in that, Including installation box (1), the installation box (1) is detachably embedded with recycling box (2), the recycling box (2) is limited with installation box (1) and forms cooperation, the bottom of installation box (1) is detachably provided with magnetic component (4), and magnetic rod body (5) is detachably embedded in recycling box (2), and magnetic component (4) is formed with magnetic bead on the magnetic rod body (5) through recycling box (2) and forms magnetic attraction cooperation, and the magnetic attraction degree of magnetic component (4) to magnetic bead is greater than the magnetic attraction degree of magnetic rod body (5) to magnetic bead, and the bottom of recycling box (2) is separated from the bottom of magnetic rod body (5) and forms magnetic bead adsorption space.

2. The magnetic bead cleaning device for extracting a magnetic bar of an instrument according to claim 1, characterized in that, The recycling box (2) is concentric with the installation box (1), the outer wall of the recycling box (2) is attached to the inner wall of the installation box (1), and the top of the recycling box (2) is flush with the top of the installation box (1).

3. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 2, characterized in that, The recycling box (2) is provided with a horizontal pull ear block (21) on both sides, the pull ear block (21) is symmetrically arranged about the middle position of the recycling box (2), and the installation box (1) is provided with a limiting groove (13) corresponding to the pull ear block (21) at the opening, the pull ear block (21) is embedded in the corresponding limiting groove (13) and forms a limiting receiving cooperation with the corresponding limiting groove (13).

4. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 3, characterized in that, When the pull ear block (21) is completely embedded in the corresponding limiting groove (13), the top of the pull ear block (21) is flush with the top of the opening of the installation box (1), and the pull ear block (21) extends outward through the corresponding limiting groove (13).

5. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 4, characterized in that, The top of the installation box (1) is provided with two parallel receiving plates (3), the receiving plate (3) is slidingly connected with the opening of the installation box (1), the magnetic rod body (5) is arranged between the two receiving plates (3), and the top of the magnetic rod body (5) is connected with the corresponding side receiving plate (3).

6. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 5, characterized in that, The top of the opening of the installation box (1) is provided with a sliding groove (12) on one side, and the bottom of the receiving plate (3) is provided with a sliding block (31) corresponding to the sliding groove (12), and the sliding block (31) is embedded in the corresponding sliding groove (12) to form a sliding connection.

7. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 6, characterized in that, The bottom of the installation box (1) is provided with a square mounting hole (11) arranged horizontally and parallel to the bottom of the installation box (1), the size of the magnetic component (4) is consistent with the size of the mounting hole (11), and the magnetic component (4) is embedded in the mounting hole (11) in a sliding manner.

8. The magnetic bead cleaning device for extracting a magnetic rod of an instrument according to claim 7, characterized in that, The magnetic component (4) is a block-shaped strong magnet.

9. The magnetic bead cleaning device for extracting a magnetic rod of a device according to any one of claims 1 to 8, characterized in that, The appearance size of the installation box (1) is consistent with the appearance size of the corresponding deep hole plate of the extractor.

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