A microfluidic chip fixture

Abstract

The utility model discloses a microfluidic chip fixture, including: a base, a chip rack mounting groove with a side opening structure is provided on the top of the base, and a base window is provided on the chip rack mounting groove; a chip rack is embedded and installed in the chip rack mounting groove; the chip rack is provided with a chip mounting groove for installing a microfluidic chip and a chip rack window corresponding to the base window; an elastic pressing piece is rotatably installed on the chip rack or the base, and the elastic pressing piece is abutted against the microfluidic chip installed on the chip mounting groove by rotation; a rotating lock button is rotatably installed at the side opening structure of the base, and an abutting portion extending outward is provided on one side of the base, and the abutting portion is abutted against the outer end surface of the chip rack by rotation. Compared with the prior art, the beneficial effect of the utility model is that by optimizing the overall disassembly and assembly method and design form, the installation efficiency and convenience of the microfluidic chip can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of microfluidic chips, and in particular relates to a microfluidic chip fixture. Background Art

[0002] Microfluidic chips are a hot area in the development of micro-total analysis systems. Microfluidic chip analysis uses chips as an operating platform, analytical chemistry as a basis, micro-electromechanical processing technology as a support, micro-pipeline networks as structural features, and life sciences as the main application object. It is the focus of the current development of micro-total analysis systems. Its goal is to integrate the functions of the entire laboratory, including sampling, dilution, reagent addition, reaction, separation, detection, etc., on a microchip, and it can be used multiple times.

[0003] The microfluidic chip fixture is a clamping component used to fix the microfluidic chip. Currently, the clamping component is often fixed on a multi-axis workbench. In order to reduce the impact of the external environment on experimental analysis, the corresponding complete equipment is often equipped with an external protective cover structure, which leads to a significant impact of equipment constraints when installing the microfluidic chip, resulting in inconvenience in installation. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a microfluidic chip fixture, which can greatly improve the installation efficiency and convenience of the microfluidic chip by optimizing the overall disassembly and assembly method and design form.

[0006] The utility model discloses a microfluidic chip fixture, comprising:

[0007] A base, on which a chip rack installation slot with a side opening structure is provided, and a base opening window is provided on the chip rack installation slot;

[0008] A chip rack is embedded in the chip rack installation groove; the chip rack is provided with a chip installation groove for installing a microfluidic chip and a chip rack opening corresponding to the base opening;

[0009] An elastic pressing sheet is rotatably mounted on the chip frame or the base, and the elastic pressing sheet is rotated to abut against the microfluidic chip mounted on the chip mounting groove;

[0010] The rotary lock button is rotatably mounted at the side opening structure of the base, and is provided with an outwardly extending abutment portion on one side thereof, so that the abutment portion abuts against the outer end surface of the chip frame through rotation.

[0011] In some embodiments, it further comprises:

[0012] The elastic gasket is arranged on the abutting portion and elastically pressed and abutted between the abutting portion and the chip frame.

[0013] In some embodiments, it further comprises:

[0014] The chip placing and taking groove is arranged on the chip frame and located outside the chip mounting groove, and the groove depth of the chip placing and taking groove is greater than the groove depth of the chip mounting groove.

[0015] In some embodiments, it further comprises:

[0016] The bottom side of the base is grooved in a recessed structure and is located below the side opening structure of the chip rack installation groove.

[0017] In some embodiments, it further comprises:

[0018] The capillary channel hole is opened on the chip frame and is located at the inner side of the window of the chip frame.

[0019] In some embodiments, it further comprises:

[0020] The conduit groove is formed on the chip frame and is located outside the window of the chip frame.

[0021] In some embodiments, a rotation slot is provided at the rotation position of the rotary lock knob, and a fastening bolt is provided in the rotation slot; the fastening bolt is threadedly connected to the base.

[0022] In some embodiments, the opening area of ​​the base window is larger than the opening area of ​​the chip frame window.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows: the traditional method of fixing and installing the chip on the workbench is replaced by pre-fixing on the chip rack and then installing the chip rack to complete the fixation of the entire device. The installation method is simple and reliable. The above two steps are fixed and connected by rotating extrusion, which can greatly improve the installation efficiency and ease of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the base of the utility model.

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the chip rack installation slot of the utility model.

[0028] Description of the drawings: base 1, chip rack mounting slot 2, base window 3, base bottom slot 4, chip rack 5, chip mounting slot 6, chip placement slot 7, elastic pressing piece 8, rotating lock button 9, catheter slot 10, yarn hole 11, chip rack window 12. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Obviously, the drawings described below are only some examples or embodiments of the utility model. For ordinary technicians in this field, the utility model can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed by the utility model, some changes in design, manufacturing or production based on the technical content disclosed by the utility model are just conventional technical means, and should not be understood as the content disclosed by the utility model is insufficient.

[0031] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0032] A microfluidic chip fixture comprises: a base 1, a chip frame 5, an elastic pressing sheet 8 and a rotating lock button 9;

[0033] A chip rack installation slot 2 with a side opening structure is provided on the base 1, and a base opening 3 is provided on the chip rack installation slot 2;

[0034] The chip rack 5 is embedded in the chip rack installation groove 2; the chip rack 5 is provided with a chip installation groove 6 for installing a microfluidic chip and a chip rack opening 12 corresponding to the base opening 3;

[0035] The elastic pressing sheet 8 is rotatably mounted on the chip frame 5 or the base 1, and the elastic pressing sheet 8 is rotated to abut against the microfluidic chip mounted on the chip mounting groove 6;

[0036] The rotary lock button 9 is rotatably mounted at the side opening structure of the base 1 , and is provided with an outwardly extending abutment portion on one side thereof, so that the abutment portion abuts against the outer end surface of the chip frame 5 by rotation.

[0037] When installing the microfluidic chip, first remove the chip rack 5, then rotate the elastic pressing sheet 8 so that it does not hinder the microfluidic chip from being placed inside the chip mounting groove 6. After completing the installation and positioning of the microfluidic chip, rotate the elastic pressing sheet 8 again to ensure the installation and positioning of the microfluidic chip through elastic extrusion, wherein the structure and size of the chip rack mounting groove 2 are adapted to the placed chip to ensure the fit between the two. Secondly, place the chip rack 5 in the chip rack mounting groove 2, the structure and size of the chip rack mounting groove 2 are adapted to the placed chip rack 5, and then rotate the rotary lock button 9 to squeeze the chip rack 5 inward through its abutment to ensure the installation and positioning of the chip rack 5. At this point, the installation of the entire microfluidic chip is completed.

[0038] In some embodiments, it also includes:

[0039] The elastic gasket is disposed on the abutting portion and elastically pressed and abutted between the abutting portion and the chip frame 5 .

[0040] In this embodiment, the chip frame 5 is installed and positioned by elastically squeezing the chip frame 5 with an elastic washer. Similarly, a structure similar to the elastic pressing piece 8 can also be used to install and position the chip frame 5 .

[0041] In some embodiments, it also includes:

[0042] The chip placing and taking groove 7 is provided on the chip frame 5 and is located outside the chip mounting groove 6 , and the groove depth of the chip placing and taking groove 7 is greater than the groove depth of the chip mounting groove 6 .

[0043] The chip placement slot 7 is designed to facilitate personnel to take out and place. The operator takes out the microfluidic chip with two fingers, and the chip placement slot 7 provides space for the fingers to move when taking out and placing, thereby ensuring that the microfluidic chip is handled with care.

[0044] In some embodiments, it also includes:

[0045] The bottom side of the base has a groove 4 which is in an inwardly recessed structure and is opened below the chip rack mounting groove 2 which is a side opening structure.

[0046] The purpose of setting the groove 4 on the bottom side of the base is to facilitate the removal of the chip rack 5. The groove 4 on the bottom side of the base provides corresponding finger contact space, so that the chip rack 5 can be taken out by easily lifting one side, and the groove 4 on the bottom side of the base can also be used to perform corresponding finger placement actions when placing.

[0047] In some embodiments, it also includes:

[0048] The capillary channel hole 11 is formed on the chip frame 5 and is located inside the chip frame window 12 .

[0049] Some microfluidic chips are sometimes provided with a capillary outlet to discharge the liquid inside. The capillary outlet hole 11 is opened to provide a corresponding outlet space for the capillary outlet, and it can also play a role in installation and positioning of the microfluidic chip. If the capillary outlet hole 11 is not opened, the size of the chip frame window 12 needs to be adjusted to ensure that no obstruction occurs.

[0050] In some embodiments, it also includes:

[0051] The conduit groove 10 is provided on the chip frame 5 and is located outside the chip frame window 12. The conduit groove 10 is used to fix and connect the external hose of the microfluidic chip in a clamping manner.

[0052] In some embodiments, a rotation slot is provided at the rotation position of the rotation lock knob 9, and a fastening bolt is provided in the rotation slot; the fastening bolt is threadedly connected to the base 1. The threaded structure is arranged to achieve the effect of rotation and locking, and the degree of extrusion force can be further increased to improve the degree of locking and fixing.

[0053] In some embodiments, the opening area of ​​the base window 3 is larger than the opening area of ​​the chip frame window 12, so as to ensure that normal illumination is not obstructed and to ensure the normal use of the microfluidic chip.

[0054] Its working principle is:

[0055] The rotary lock button 9 is rotated to separate its abutting part from the chip rack 5, and the chip rack 5 is clamped up and down by fingers through the groove 4 on the bottom side of the base to remove the chip rack 5 from the chip rack mounting groove 2. Then, the elastic pressing piece 8 is rotated to separate it from the microfluidic chip, and the microfluidic chip is clamped front and back by fingers through the chip placement and retrieval groove 7 to remove the microfluidic chip from the chip mounting groove 6 to complete the entire removal action.

[0056] During installation, the basic process is the same as above. It should be noted that the capillary outlet pipe of the microfluidic chip needs to be aligned with the capillary pipe hole 11, and then the microfluidic chip is slowly installed in the chip installation groove 6, and then the corresponding hose card is embedded in the catheter groove 10.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A microfluidic chip fixture, characterized in that: include: A base, on which a chip rack installation slot with a side opening structure is provided, and a base opening window is provided on the chip rack installation slot; A chip rack is embedded in the chip rack installation groove; the chip rack is provided with a chip installation groove for installing a microfluidic chip and a chip rack opening corresponding to the base opening; An elastic pressing sheet is rotatably mounted on the chip frame or the base, and the elastic pressing sheet is rotated to abut against the microfluidic chip mounted on the chip mounting groove; The rotary lock button is rotatably mounted at the side opening structure of the base, and is provided with an outwardly extending abutment portion on one side thereof, so that the abutment portion abuts against the outer end surface of the chip frame through rotation.

2. The microfluidic chip fixture according to claim 1, characterized in that: Also includes: The elastic gasket is arranged on the abutting portion and elastically pressed and abutted between the abutting portion and the chip frame.

3. The microfluidic chip fixture according to claim 1, characterized in that: Also includes: The chip placing and taking groove is arranged on the chip frame and located outside the chip mounting groove, and the groove depth of the chip placing and taking groove is greater than the groove depth of the chip mounting groove.

4. The microfluidic chip fixture according to claim 1, characterized in that: Also includes: The bottom side of the base is grooved in a recessed structure and is located below the side opening structure of the chip rack installation groove.

5. The microfluidic chip fixture according to claim 1, characterized in that: Also includes: The capillary channel hole is opened on the chip frame and is located at the inner side of the window of the chip frame.

6. The microfluidic chip fixture according to claim 1, characterized in that: Also includes: The conduit groove is formed on the chip frame and is located outside the window of the chip frame.

7. The microfluidic chip fixture according to claim 1, characterized in that: A rotation slot is provided at the rotation position of the rotary lock knob, and a fastening bolt is provided in the rotation slot; the fastening bolt is threadedly connected to the base.

8. The microfluidic chip fixture according to claim 1, characterized in that: The opening area of ​​the base window is larger than the opening area of ​​the chip frame window.

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