CN215250793U

CN215250793U - Sample preparation device for detecting nucleic acid

Info

Publication number: CN215250793U
Application number: CN202121566624.1U
Authority: CN
Inventors: 池里群; 卢新; 舒向荣
Original assignee: Haidian Maternal & Child Health Hospital
Current assignee: Haidian Maternal & Child Health Hospital
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-21
Anticipated expiration: 2031-07-09

Abstract

The utility model relates to the technical field of medical equipment, and discloses a sample preparation device for detecting nucleic acid, which comprises a preparation box, wherein the bottom of the inner cavity of the preparation box is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a workbench, the utility model constructs a sample preparation device for detecting nucleic acid through the arrangement of the preparation box, the motor, the workbench, a sample disc, a sample tube, a transfusion tube, a solenoid valve, a liquid injection head, a first electric push rod and a connecting rod, wherein the workbench can be driven to rotate through the arrangement of the motor, the sample disc and the sample tube can be driven to rotate, the quantity of liquid injection can be controlled through the arrangement of the solenoid valve, and finally, the liquid injection head can be pushed to move downwards through the arrangement of the first electric push rod, so that the liquid injection head extends into the sample tube, and the matching of the above structures solves the problem that the manual preparation can not achieve the uniform quantity, the problem of reducing the inspection accuracy.

Description

Sample preparation device for detecting nucleic acid

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a sample preparation facilities for detecting nucleic acid.

Background

Modern analytical chemistry often exists in a multiphase form, particularly when nucleic acid needs to be detected, nucleic acid composition and structure are not only complex, but also interfere with each other during detection, meanwhile, the concentration requirement of a detected object is lower and lower, stability changes at any time, particularly, the possibility of directly detecting various environments and biological samples after collection is very low, and nucleic acid detection can be started after sample preparation and pretreatment are generally needed.

In order to ensure the consistency of samples, the existing sample preparation device for detecting nucleic acid needs the same external environment during sample preparation, manual preparation cannot achieve uniform amount, the accuracy of detection is reduced, and damage or pollution to the samples caused by errors can also occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sample preparation facilities for detecting nucleic acid possesses the advantage of preparation of equal volume, has solved artifical preparation and can't accomplish equal volume, reduces the problem of inspection accuracy.

For solving the technical problem, the utility model provides a pair of a sample preparation facilities for detecting nucleic acid, including preparing the case, the bottom fixedly connected with motor of preparation incasement chamber, the output shaft fixedly connected with workstation of motor, the sample dish has been placed at the top of workstation, the sample pipe has been placed at the top of sample dish, the left side intercommunication at preparation incasement chamber top has the transfer line, the bottom intercommunication of transfer line has the solenoid valve, the bottom intercommunication of solenoid valve has annotates the liquid head, the top of preparation incasement chamber just is located the first electric putter of left side fixedly connected with of transfer line, first electric putter's bottom fixedly connected with connecting rod, the right side and the solenoid valve fixed connection of connecting rod.

Preferably, the two sides of the top of the workbench are fixedly connected with supporting plates, and the opposite side of the supporting plates is fixedly connected with a second electric push rod.

Preferably, the bottom of the inner cavity of the preparation box is provided with a ring groove, two sides of the inner cavity of the ring groove are both connected with a sliding rod in a sliding manner, and the top of the sliding rod is fixedly connected with the workbench.

Preferably, the left side of the front surface of the preparation box is movably connected with a box door through a hinge, and the surface of the box door is fixedly connected with a handle.

Preferably, the top of the infusion tube penetrates through the preparation box, extends to the outside of the preparation box and is communicated with a funnel, and the periphery of the bottom of the preparation box is fixedly connected with supporting legs.

Preferably, the telescopic end of the second electric push rod is fixedly connected with a clamping plate, and one side, far away from the second electric push rod, of the clamping plate is in contact with the sample tray.

Compared with the prior art, the utility model provides a sample preparation facilities for detecting nucleic acid has following beneficial effect:

the utility model discloses a preparation case, including a motor, an end cap, a controller, and a cover plate, the workstation, the sample dish, the sample pipe, the transfer line, the solenoid valve, annotate the liquid head, the setting of first electric putter and connecting rod, a sample preparation device for detecting nucleic acid has been found jointly, wherein the setting through the motor, can drive the workstation and rotate, and then can drive sample dish and sample pipe and rotate, the setting of rethread solenoid valve, can control and annotate liquid quantity, last setting through first electric putter, can promote to annotate liquid head downstream, it is intraductal to make it stretch into the sample, the cooperation of above-mentioned structure, the artificial preparation has been solved and can't accomplish the homogeneous volume, reduce the problem of inspection accuracy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is a top view of a sample tray in the structure of the present invention;

fig. 4 is a partial enlarged view of a in the structure of the present invention.

In the figure: 1. preparing a box; 2. a motor; 3. a work table; 4. a sample tray; 5. a sample tube; 6. a transfusion tube; 7. an electromagnetic valve; 8. a liquid injection head; 9. a first electric push rod; 10. a connecting rod; 11. a support plate; 12. a second electric push rod; 13. a ring groove; 14. a slide bar; 15. and (4) clamping the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in figures 1-4, a sample preparation device for detecting nucleic acid comprises a preparation box 1, a motor 2 is fixedly connected to the bottom of an inner cavity of the preparation box 1, an output shaft of the motor 2 is fixedly connected with a workbench 3, a sample tray 4 is placed at the top of the workbench 3, a sample tube 5 is placed at the top of the sample tray 4, a liquid conveying tube 6 is communicated with the left side of the top of the inner cavity of the preparation box 1, an electromagnetic valve 7 is communicated with the bottom of the liquid conveying tube 6, a liquid injection head 8 is communicated with the bottom of the electromagnetic valve 7, a first electric push rod 9 is fixedly connected to the top of the inner cavity of the preparation box 1 and positioned at the left side of the liquid conveying tube 6, a connecting rod 10 is fixedly connected to the bottom of the first electric push rod 9, the right side of the connecting rod 10 is fixedly connected with the electromagnetic valve 7, and the liquid conveying tube, the sample tray 4, the sample tube 5, the sample tube 6, the electromagnetic valve 7 and the liquid injection head 8 are connected with the liquid conveying tube 10 through the preparation box 1, the motor 2, the sample tray 4, the liquid conveying tube 7, First electric putter 9 and connecting rod 10's setting have established a sample preparation device for detecting nucleic acid jointly, wherein through the setting of motor 2, can drive workstation 3 and rotate, and then can drive sample dish 4 and sample pipe 5 and rotate, and liquid quantity can be annotated in the setting of rethread solenoid valve 7 to the control, and through the setting of first electric putter 9 at last, can promote to annotate liquid head 8 and move down, makes it stretch into in the sample pipe 5.

Referring to fig. 2, two sides of the top of the worktable 3 are fixedly connected with supporting plates 11, and one sides of the two supporting plates 11 opposite to each other are fixedly connected with second electric push rods 12.

Referring to fig. 2 and 4, a ring groove 13 is formed at the bottom of an inner cavity of the preparation box 1, slide rods 14 are slidably connected to both sides of the inner cavity of the ring groove 13, the top of each slide rod 14 is fixedly connected with the workbench 3, and the stability of the workbench 3 can be improved when the workbench is rotated through the arrangement of the ring groove 13 and the slide rods 14.

Referring to fig. 1, a door is movably connected to the left side of the front surface of the preparation box 1 through a hinge, and a handle is fixedly connected to the surface of the door.

Referring to fig. 1 and 2, the top of the infusion tube 6 penetrates through the preparation box 1, extends to the outside of the preparation box 1, and is communicated with a funnel, the support legs are fixedly connected to the periphery of the bottom of the preparation box 1, and the funnel is arranged to facilitate the user to add the infusion solution.

Referring to fig. 2, a clamping plate 15 is fixedly connected to the telescopic end of the second electric push rod 12, the inner surface of the clamping plate 15 is designed in an arc shape, one side of the clamping plate 15, which is far away from the second electric push rod 12, is in contact with the sample tray 4, and the sample tray 4 can be clamped and fixed by the arrangement of the second electric push rod 12 and the clamping plate 15.

The working principle is as follows:

the first step is as follows: pouring liquid to be filled into the funnel, opening the box door, placing the sample plate 4 on the workbench 3, and starting the second electric push rod 12 to push the clamping plate 15 to clamp and fix the sample plate 4;

the second step is that: the starting motor 2 drives the workbench 3 to rotate, and further can drive the sample tray 4 and the sample tube 5 to rotate, the sample tube 5 can be subjected to position adjustment, and then the first electric push rod 9 is started to drive the electromagnetic valve 7 and the liquid injection head 8 to move downwards through the connecting rod 10, so that the liquid injection head 8 extends into the sample tube 5;

the third step: open solenoid valve 7, can control and annotate liquid quantity, accomplish the circulation of annotating sample pipe 5 and annotate the liquid, guarantee the uniformity of sample preparation, reduce the equal volume error of sample preparation, improve the accuracy of inspection, also can make a plurality of samples, improve the efficiency of sample preparation, reach the effect of equal volume preparation.

Through above structure, solved artifical preparation and can't accomplish the even volume, reduced the problem of inspection accuracy.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sample preparation device for detecting nucleic acid, comprising a preparation case (1), characterized in that: prepare bottom fixedly connected with motor (2) of case (1) inner chamber, output shaft fixedly connected with workstation (3) of motor (2), sample dish (4) have been placed at the top of workstation (3), sample pipe (5) have been placed at the top of sample dish (4), the left side intercommunication at preparation case (1) inner chamber top has transfer line (6), the bottom intercommunication of transfer line (6) has solenoid valve (7), the bottom intercommunication of solenoid valve (7) has notes liquid head (8), the top of preparation case (1) inner chamber just is located the first electric putter (9) of left side fixedly connected with of transfer line (6), the bottom fixedly connected with connecting rod (10) of first electric putter (9), the right side and solenoid valve (7) fixed connection of connecting rod (10).

2. A sample preparation device for detecting nucleic acid according to claim 1, wherein: the two sides of the top of the workbench (3) are fixedly connected with supporting plates (11), and the two opposite sides of the supporting plates (11) are fixedly connected with second electric push rods (12).

3. A sample preparation device for detecting nucleic acid according to claim 1, wherein: the bottom of the inner cavity of the preparation box (1) is provided with a ring groove (13), two sides of the inner cavity of the ring groove (13) are respectively connected with a sliding rod (14) in a sliding manner, and the top of the sliding rod (14) is fixedly connected with the workbench (3).

4. A sample preparation device for detecting nucleic acid according to claim 1, wherein: the left side of the front surface of the preparation box (1) is movably connected with a box door through a hinge, and the surface of the box door is fixedly connected with a handle.

5. A sample preparation device for detecting nucleic acid according to claim 1, wherein: the top of the infusion tube (6) penetrates through the preparation box (1) and extends to the outside of the preparation box (1) and is communicated with a funnel, and the periphery of the bottom of the preparation box (1) is fixedly connected with supporting legs.

6. A sample preparation device for detecting nucleic acid according to claim 2, wherein: the flexible end fixedly connected with splint (15) of second electric putter (12), one side that second electric putter (12) were kept away from in splint (15) has the contact with sample dish (4).