阅读说明：本技术 全自动全封闭多靶点核酸检测装置 (Full-automatic totally-enclosed multi-target nucleic acid detection device ) 是由 王小平 张国宁 邱盟轩 于 2018-07-24 设计创作，主要内容包括：本发明公开一种全自动全封闭多靶点核酸检测装置,其中,全自动全封闭多靶点核酸检测装置包括卡盒,包括盒体,盒体的顶面上设置进样口,进样口上设置密封盖,该密封盖与盒体通过磁性件磁性吸附；盒体的底部设有样品池、试剂仓、以及杂交槽,杂交槽底部设置芯片,该芯片上有能与PCR产物特异性杂交的检测探针,所述盒体内设有取样针；卡盒加热器,所述卡盒加热器设有核酸提取磁铁；传动结构,所述传动结构控制所述取样针在盒体内移动；条码阅读器,卡盒被插入仪器,通过条码阅读器对卡盒进行识别处理,分析结果直接汇总到电脑。本发明技术方案旨在实现提取、扩增、检测,三位一体；全自动、全封闭、防污染,同时使得密封盖的连接更加稳固。(The invention discloses a full-automatic fully-closed multi-target nucleic acid detection device, which comprises a card box, wherein the card box comprises a box body, the top surface of the box body is provided with a sample inlet, the sample inlet is provided with a sealing cover, and the sealing cover and the box body are magnetically adsorbed through a magnetic part; the bottom of the box body is provided with a sample pool, a reagent bin and a hybridization groove, the bottom of the hybridization groove is provided with a chip, the chip is provided with a detection probe capable of specifically hybridizing with a PCR product, and a sampling needle is arranged in the box body; a cartridge heater provided with a nucleic acid extracting magnet; the transmission structure controls the sampling needle to move in the box body; the card box is inserted into the instrument, the card box is identified and processed through the bar code reader, and the analysis result is directly gathered to the computer. The technical scheme of the invention aims to realize extraction, amplification and detection, and is a three-in-one entity; the sealing cover is full-automatic, fully-closed and pollution-proof, and meanwhile, the sealing cover is more stably connected.)

1. A full-automatic totally-enclosed multi-target nucleic acid detection device is characterized by comprising:

the card box comprises a box body, wherein a sample inlet is formed in the top surface of the box body, a sealing cover is arranged on the sample inlet, and the sealing cover and the box body are magnetically adsorbed through a magnetic part; the bottom of the box body is provided with a sample pool, a reagent bin and a hybridization tank, the bottom of the hybridization tank is provided with a chip, the chip is provided with a detection probe capable of specifically hybridizing with a PCR product, the sample pool is arranged opposite to the sample inlet, and a sampling needle is arranged in the box body;

a cartridge heater provided with a nucleic acid extraction magnet disposed adjacent to the hybridization tank;

the transmission structure is fixed on the box body and connected with the sampling needle to control the sampling needle to move in the box body;

the card box is inserted into the instrument, the card box is identified through the bar code reader, and the analysis result is directly collected to the computer.

2. The fully automatic, fully closed, multi-target nucleic acid testing device of claim 1,

the number of the reagent bins is multiple, and the reagent bins are uniformly arranged between the sample pool and the hybridization tank at intervals.

3. The fully-automatic fully-enclosed multi-target nucleic acid detection device according to claim 1, wherein the sample cell, the reagent chamber, and the hybridization tank are detachably connected to the bottom of the cartridge body.

4. The fully-automatic fully-enclosed multi-target nucleic acid detection device according to claim 3, wherein the sample cell, the reagent chamber, and the hybridization tank are detachably connected to the bottom of the cartridge body by a buckle.

5. The fully-automatic and fully-closed multi-target nucleic acid detection device according to claim 1, wherein the transmission structure comprises a transverse transmission mechanism and a vertical transmission mechanism, the transverse transmission mechanism is connected to the side wall of the box body, the vertical transmission mechanism is slidably connected to the transverse transmission mechanism, and the sampling needle is connected to the vertical transmission mechanism.

6. The fully-automatic and fully-closed multi-target nucleic acid detection device according to claim 1, wherein a waste liquid tank is further provided at the bottom of the cartridge body, and the waste liquid tank is detachably connected to the bottom of the cartridge body.

7. The fully automatic, fully closed, multi-target nucleic acid testing device of claim 6, wherein the number of waste solution tanks is multiple.

8. The apparatus according to claim 6, wherein a porous plate is disposed above the sample cell, the reagent chamber, the waste liquid tank, and the hybridization tank, the left and right ends of the porous plate are respectively fixed to the inner wall of the case, and the holes of the porous plate correspond to the open ends of the sample cell, the reagent chamber, the waste liquid tank, and the hybridization tank.

9. The fully automated, fully enclosed, multi-target nucleic acid testing device of claim 1, wherein the cartridge heater is further coupled to a moving member that moves the cartridge heater.

Technical Field

The invention relates to the technical field of nucleic acid detection, in particular to a full-automatic fully-closed multi-target nucleic acid detection device.

Background

There are three main steps in molecular diagnostics: extracting, amplifying and detecting nucleic acid. There are many methods per step, each with different reagents to choose from, and each with different automated instruments produced by some manufacturers, and therefore, one challenge for clinical users is how to select and integrate these reagents and instruments so that each step has optimal results.

An optimal solution for molecular differential diagnosis should be: extracting, amplifying and detecting the three parts; full-automatic, totally-enclosed, pollution-proof, all-round. The necessity of amplification: the purpose of amplification is to increase the signal-to-noise ratio. All diagnoses are seeking an optimal signal-to-noise ratio, especially for infectious diseases. For example, in case of infection from blood sources, a patient may have twenty bacteria in one milliliter of blood and millions of white blood cells in the same milliliter of blood, and the nucleic acid and other macromolecules in the white blood cells become noise for detection, so that the purpose of amplification is to amplify the signal and increase the signal-to-noise ratio. Without amplification, it is difficult to obtain the specificity and sensitivity required for diagnosis. Automation is a market need: the management and operation personnel of the clinical laboratory are not doctor masters in schools and scientific research units, and generally have no solid molecular biology technology foundation, so if the molecular diagnosis technology is popularized on a large scale, the automation degree of the technology is high to a certain extent, the human error can be avoided, and the diagnosis efficiency is improved. Real-time PCR has actually achieved automated amplification and detection, but the problem of multiplex amplification and detection is not well solved. Closed systems are demanded by the market: the term "not to block" means that after PCR amplification, the cap needs to be opened to take out the high concentration PCR product for the next reaction. This open procedure is prone to contamination of the laboratory amplification product, leading to false positive results. All those who have performed PCR know that contamination occurs sooner or later and is very difficult to remove once it occurs, presenting insurmountable difficulties in diagnostic testing. To avoid contamination, even in very low-level hospitals, molecular diagnostics laboratories need to be set up with multiple isolated rooms: the sample extraction, reaction establishment, amplification, detection and the like are separated, and pollution is avoided.

An optimal solution for molecular differential diagnosis would be: extracting, amplifying and detecting the three parts; full-automatic, totally-enclosed, pollution-proof, all-round. Whether the three-in-one technology platform is completed or not and the perfect integration of the three functions are required to be judged according to the practicability and maturity of the technology platform, and the equipment is provided by the invention. The device also avoids contamination by being used with disposable cartridges: because the PCR reaction is set up by the manufacturer (the reagent is put in the card box in advance), the chance of pollution is avoided; in addition, the high-concentration PCR product is sealed in the card box, and the pollution source is effectively controlled. The problem of pollution is solved, so that the user is relieved, and the problems of space shortage and overhigh capital construction cost are solved for the primary hospital. Meanwhile, the sealing cover of the sample inlet of the existing box body is easy to lose and not firm in connection.

Disclosure of Invention

The invention mainly aims to provide a full-automatic fully-closed multi-target nucleic acid detection device, aiming at realizing extraction, amplification and detection, and integrating three functions; the sealing cover is full-automatic, fully-closed and pollution-proof, and meanwhile, the sealing cover is more stably connected.

In order to achieve the above object, the present invention provides a fully automatic fully closed multi-target nucleic acid detection device, comprising:

the card box comprises a box body, wherein a sample inlet is formed in the top surface of the box body, a sealing cover is arranged on the sample inlet, and the sealing cover and the box body are magnetically adsorbed through a magnetic part; the bottom of the box body is provided with a sample pool, a reagent bin and a hybridization tank, the bottom of the hybridization tank is provided with a chip, the chip is provided with a detection probe capable of specifically hybridizing with a PCR product, the sample pool is arranged opposite to the sample inlet, and a sampling needle is arranged in the box body;

a cartridge heater provided with a nucleic acid extraction magnet disposed adjacent to the hybridization tank;

the transmission structure is fixed on the box body and connected with the sampling needle to control the sampling needle to move in the box body;

the card box is inserted into the instrument, the card box is identified through the bar code reader, and the analysis result is directly collected to the computer.

Optionally, the number of the reagent bins is multiple, and the multiple reagent bins are uniformly arranged between the sample pool and the hybridization tank at intervals.

Optionally, the sample pool, the reagent bin and the hybridization groove are detachably connected to the bottom of the box body.

Optionally, the sample cell, the reagent chamber and the hybridization groove are detachably connected to the bottom of the box body through a buckle.

Optionally, the transmission structure includes a transverse transmission mechanism and a vertical transmission mechanism, the transverse transmission mechanism is connected to the side wall of the box body, the vertical transmission mechanism is connected to the transverse transmission mechanism in a sliding manner, and the sampling needle is connected to the vertical transmission mechanism.

Optionally, the bottom of the box body is further provided with a waste liquid tank, and the waste liquid tank is detachably connected to the bottom of the box body.

Optionally, the number of waste liquid tanks is plural.

Optionally, a porous plate is arranged above the sample cell, the reagent bin, the waste liquid tank and the hybridization tank, the left end and the right end of the porous plate are respectively and fixedly arranged on the inner wall of the box body, and the holes in the porous plate respectively correspond to the open ends of the sample cell, the reagent bin, the waste liquid tank and the hybridization tank.

Optionally, the cartridge heater is further connected with a moving member, and the moving member drives the cartridge heater to move.

In the technical scheme of the invention, all reagents required for nucleic acid extraction, amplification and detection are placed in the cartridge in advance, so that the pollution chance is avoided; in addition, the high-concentration PCR product is sealed in the card box, and the pollution source is effectively controlled. The problem of pollution is solved, so that the user is relieved, and the problems of space shortage and overhigh capital construction cost are solved for the primary hospital. The device integrates the extraction, amplification and detection of molecular diagnosis nucleic acid into a whole, realizes automation and sealing, and is convenient to use. Meanwhile, the sealing cover and the box body are magnetically adsorbed through the magnetic part, so that the sealing cover is more stably connected with the box body, the sealing cover is prevented from being lost, and external impurities enter the box body to pollute the reagent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a cartridge of the fully-automatic fully-enclosed multi-target nucleic acid detecting device of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the fully-automatic fully-closed multi-target nucleic acid detection device of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a full-automatic fully-closed multi-target nucleic acid detection device 100.

Referring to fig. 1 to 2, in an embodiment of the present invention, the fully-automatic fully-enclosed multi-target nucleic acid detecting apparatus 100 includes:

the card box 10 comprises a box body, wherein a sample inlet is arranged on the top surface of the box body, a sealing cover 11 is arranged on the sample inlet, and the sealing cover 11 is magnetically adsorbed on the box body through a magnetic part; the bottom of the box body is provided with a sample cell 12, a reagent bin 13 and a hybridization groove 14, the bottom of the hybridization groove 14 is provided with a chip 141, the chip 141 is provided with a detection probe capable of specifically hybridizing with a PCR product, the sample cell 12 is arranged opposite to the sample inlet, and the box body is internally provided with a sampling needle 15;

a cartridge heater 30, the cartridge heater 30 being provided with a nucleic acid extracting magnet 31, the nucleic acid extracting magnet 31 being disposed adjacent to the hybridization tank 14;

the transmission structure is fixed on the box body and connected with the sampling needle 15 to control the sampling needle 15 to move in the box body;

and a bar code reader 50, wherein the card box 10 is inserted into the instrument, the card box 10 is identified by the bar code reader 50, and the analysis result is directly summarized to a computer.

In the technical scheme of the invention, all reagents required for nucleic acid extraction, amplification and detection are arranged in the card box 10 in advance, so that the chance of pollution is avoided; in addition, since the PCR product with high concentration is enclosed in the cartridge 10, the contamination source is effectively controlled. The problem of pollution is solved, so that the user is relieved, and the problems of space shortage and overhigh capital construction cost are solved for the primary hospital. The device integrates the extraction, amplification and detection of molecular diagnosis nucleic acid into a whole, realizes automation and sealing, and is convenient to use. Meanwhile, the sealing cover 11 and the box body are magnetically adsorbed through the magnetic part, so that the sealing cover 11 is more stably connected with the box body, the sealing cover 11 is prevented from being lost, and external impurities enter the box body to pollute the reagent.

The cartridge 10 described above is actually a laboratory liquid routine procedure that is performed by "cloning" a tester into the disposable plastic cartridge. All reagents for the reaction are put in the bottom of the cartridge 10 at the manufacturer in advance, and a magnetic bead solution for nucleic acid extraction is stored in the bottom of the cartridge 10 in advance. After the amplification reaction is finished, the automatic liquid-transfering gun can completely place the reaction product into the hybridization tank 14, and the bottom of the hybridization tank 14 is equipped with printed glass chip 141, and on the glass chip a detection probe capable of making specific hybridization with PCR product is set, and because the PCR product is equipped with fluorescent label (placed on the reverse common primer), so that the hybridization can implement multiple identification of specific target point. Hybridization solution, washing buffer solution, etc. are stored in advance in the bottom of the cartridge 10, and used liquid, liquid containing PCR products at high concentration, are also stored in the waste liquid tank 16 in the bottom of the cartridge 10. Once the sample is introduced into the sample inlet 11 and the inlet is closed, the whole sample extraction, amplification and detection process is completed in the cartridge 10, which is closed in the whole process, does not contact with the outside, and does not cause contamination.

The cartridge heater 30 may be three independently controlled heaters for performing PCR reactions. Since the nucleic acid extracting magnet 31 is embedded in the heater, the magnetic bead-based nucleic acid extracting operation can be performed in the cartridge 10. The heater also provides a constant temperature for hybridization, controlling the specificity of the hybridization reaction.

The drive mechanism controls the movement of the sampling needle 15 in the cartridge 10 both laterally and up and down.

The card box 10 is inserted into the instrument, the card box 10 is identified by the bar code reader 50, the analysis result is directly gathered to a computer, and the analysis result can be directly sent to a doctor by an e-mail or a short message.

Each device can process four specimens simultaneously (random on-machine, not waiting for four specimens together). Each cartridge 10 processing unit operates independently, and different units can run cartridges 10 of different contents to perform molecular differential diagnosis of different patient specimens and different diseases.

The cartridge 10, which is a mechanical device integrating nucleic acid extraction, amplification and detection, has completed the procedures of extraction, amplification, hybridization, washing and the like, and the last step is to read the detection data. The experimenter only needs to take the card box 10 out of the mechanical device integrating nucleic acid extraction, amplification and detection (the instrument and software have prompts after the card box 10 is processed), and put the card box 10 into the laser scanning reading device, and the full-automatic data reading can be carried out on 1-4 card boxes 10 after 1-5 minutes of scanning.

Further, the number of the reagent chambers 13 is plural, and the plural reagent chambers 13 are arranged between the sample cell 12 and the hybridization tank 14 at regular intervals. The arrangement of a plurality of reagent bins 13 can realize the storage of a plurality of reagents.

Further, the sample cell 12, the reagent chamber 13 and the hybridization chamber 14 are detachably connected to the bottom of the cartridge body. The detachable connection facilitates the cleaning and replacement of the sample cell 12, the reagent chamber 13, and the hybridization tank 14.

Further, the sample cell 12, the reagent chamber 13 and the hybridization groove 14 are detachably connected to the bottom of the box body by a snap. The connection is stable and convenient through the buckle.

In an embodiment of the present application, the transmission structure includes a transverse transmission mechanism 61 and a vertical transmission mechanism 62, the transverse transmission mechanism 61 is connected to the side wall of the box body, the vertical transmission mechanism 62 is slidably connected to the transverse transmission mechanism 61, and the sampling needle 15 is connected to the vertical transmission mechanism 62.

The transverse transmission mechanism 61 and the vertical transmission mechanism 62 can adopt screw drive and hydraulic drive.

Further, the bottom of the box body is also provided with a waste liquid groove 16, and the waste liquid groove 16 is detachably connected to the bottom of the box body.

The waste liquid tank 16 is arranged to conveniently store waste liquid and prevent pollution. The detachable connection can facilitate cleaning and replacement.

Further, the waste liquid tank 16 is plural in number. Can store various waste liquids to prevent cross contamination.

Furthermore, a porous plate is arranged above the sample cell 12, the reagent bin 13, the waste liquid tank 16 and the hybridization tank 14, the left end and the right end of the porous plate are respectively and fixedly arranged with the inner wall of the box body, and holes in the porous plate respectively correspond to the open ends of the sample cell 12, the reagent bin 13, the waste liquid tank 16 and the hybridization tank 14. The arrangement of the porous plate can facilitate the fixation of the sample cell 12, the reagent bin 13, the waste liquid groove 16 and the hybridization groove 14, so that the fixation is more stable.

Further, a moving member 32 is connected to the cartridge heater 30, and the moving member 32 drives the cartridge heater 30 to move. The movement of the cartridge heater 30 is facilitated by the provision of the moving member 32.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.