CN112852607A - Injection system for efficiently extracting nucleic acid - Google Patents
Injection system for efficiently extracting nucleic acid Download PDFInfo
- Publication number
- CN112852607A CN112852607A CN202110330627.3A CN202110330627A CN112852607A CN 112852607 A CN112852607 A CN 112852607A CN 202110330627 A CN202110330627 A CN 202110330627A CN 112852607 A CN112852607 A CN 112852607A
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- Prior art keywords
- needle tube
- sliding
- clamping
- inner cavity
- cylinder
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/10—Processes for the isolation, preparation or purification of DNA or RNA
- C12N15/1003—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
- C12Q1/24—Methods of sampling, or inoculating or spreading a sample; Methods of physically isolating an intact microorganisms
Abstract
The invention discloses an injection system for efficiently extracting nucleic acid, which comprises an injection body, wherein the injection body comprises a needle tube, a needle head and a sliding body, the needle tube is provided with an inner cavity, and a deformation film is formed on the bottom surface of the inner cavity of the needle tube; the deformation membrane comprises a sealing connection part and a deformation part, wherein the sealing connection part is close to the outer diameter and is annular, and the deformation part is positioned in the sealing connection part; the needle tube clamping device also comprises a clamping mechanism for clamping and fixing the needle tube and a telescopic mechanism for driving the sliding body to slide so as to flow liquid into or discharge liquid from the inner cavity of the needle tube; by arranging the deformation membrane between the output port of the needle tube and the bottom of the inner cavity, when the telescopic mechanism drives the sliding body to move outwards at the bottom of the inner cavity, the deformation membrane deforms to absorb the solution, the solution is positioned between the needle head, the output port of the needle tube, the inner cavity and the deformation membrane and cannot contact the sliding body, the needle tube and the needle head are thrown away after use, the sliding handle can be repeatedly used, and the environment is very environment-friendly, and the cost is saved; the clamping mechanism is arranged so that the needle tube and the sliding body are in a relatively stable state in the action process, and the smoothness of operation is ensured.
Description
Technical Field
The invention relates to the field of medical detection instruments, in particular to an injection system for efficiently extracting nucleic acid.
Background
In recent years, due to outbreak of epidemic situation, people need to frequently perform nucleic acid detection when entering and exiting or working; the existing nucleic acid detection needs steps of dissolving a mucus solution or other solutions into a solution, adsorbing the solution into other test tubes through a syringe, performing magnetization purification separation and the like, and because the nucleic acid detection is infectious medical waste, the syringe needs to be thrown away every time the nucleic acid detection is used up, but the detection amount is huge at present, so the use of the syringe is huge.
In view of the above, the applicant has made an intensive study on the above-mentioned defects in the prior art, and has made this invention.
Disclosure of Invention
The invention mainly aims to provide an injection system for efficiently extracting nucleic acid, wherein a sliding body of an injector can be repeatedly used, and a solution to be detected can be automatically and efficiently extracted for nucleic acid detection.
In order to achieve the above purpose, the solution of the invention is:
an injection system for efficiently extracting nucleic acid comprises an injection body, wherein the injection body comprises a needle tube, a needle head connected to the output end of the needle tube and a sliding body in sealed sliding connection with the inner cavity of the needle tube, the needle tube is provided with an inner cavity for containing solution, and a deformation film for covering the bottom surface of the inner cavity is formed on the bottom surface of the inner cavity of the needle tube; the deformation membrane comprises a sealing connecting part and a deformation part, wherein the sealing connecting part is close to the outer diameter and is annular, and the deformation part is positioned in the sealing connecting part; the needle tube clamping device also comprises a clamping mechanism for clamping and fixing the needle tube and a telescopic mechanism for driving the sliding body to slide so as to flow liquid into or discharge liquid from the inner cavity of the needle tube.
Further, still including bearing the first conveyer belt of needle tubing and syringe needle, bear the second conveyer belt of the solution that awaits measuring to and bear the third conveyer belt of detecting the test tube.
Further, a plurality of placing bearing platforms arranged at intervals along the conveying direction are formed on the surface of the first conveying belt, and a plurality of placing holes arranged at intervals are formed on the upper surface of each placing bearing platform along the direction vertical to the conveying direction; the aperture of the containing hole is the same as the pipe diameter of the needle tube;
a plurality of bearing tables for the solution to be detected are formed on the surface of the second conveying belt at intervals along the conveying direction;
the third conveyer belt surface is formed with a plurality of test tube plummer that set up along the direction of delivery interval.
And the moving mechanism drives the clamping mechanism and the telescopic mechanism to reciprocate above the first conveying belt, the second conveying belt and the third conveying belt.
Further, the moving mechanism comprises a movable telescopic component and a movable portal frame; the movable telescopic component is connected with the lower surface of the movable portal frame in a sliding manner; the movable portal frame spans the first conveying belt, the second conveying belt and the third conveying belt.
Furthermore, a connecting plate is formed at the output end of the movable telescopic component; the telescopic mechanism comprises a plurality of sliding body telescopic cylinders; the sliding body telescopic cylinder is fixedly connected to the lower surface of the connecting plate, and the output end of the sliding body telescopic cylinder is fixedly connected with the sliding body.
Further, the sliding body comprises a connecting rod and a sliding head; one end of the connecting rod is connected with the sliding body telescopic cylinder, and the other end of the connecting rod is fixedly connected with the sliding head; the telescopic mechanism also comprises a sliding cylinder body formed below the plurality of sliding body telescopic cylinders; the sliding cylinder body comprises an upper connecting cylinder, a lower connecting cylinder and a transition connecting ring; the diameter of the transition connecting ring is larger than that of the upper connecting cylinder and larger than that of the lower connecting cylinder; the outer diameter of the lower connecting cylinder is equal to the diameter of the inner cavity; the sliding cylinder is provided with a through hole penetrating through the upper connecting cylinder, the lower connecting cylinder and the transition connecting ring, and the horizontal cross section of the through hole is the same as that of the sliding head; the sliding head is connected with the through hole in a sealing and sliding mode.
Further, the sliding cylinder is fixedly connected to the connecting plate.
Further, the needle tube comprises a tube body and a convex ring formed at the opening of the inner cavity of the tube body; the diameter of the convex ring is the same as that of the transition connecting ring; the clamping mechanism is fixedly connected with the connecting plate; the clamping mechanism comprises a first clamping assembly and a second clamping assembly which clamp the convex ring and the transition connecting ring; the first clamping assembly and the second clamping assembly are arranged oppositely and have the same structure.
Further, the first clamping assembly comprises a clamping telescopic assembly and a clamping plate formed at the output end of the clamping telescopic assembly; an arc-shaped notch is formed on one surface of the clamping plate facing the needle tube; the clamping plate is provided with the arc-shaped notch, and an arc-shaped clamping groove is formed in one surface, facing the sliding cylinder, of the clamping plate; the diameter of the circular arc clamping groove is the same as that of the convex ring; the groove width of the circular arc-shaped clamping groove is equal to the thickness of the convex ring plus the thickness of the transition connecting ring.
Further, the device also comprises a waste collection box.
Further, the movable portal frame spans the input port of the waste collection box.
After adopting the structure, the injection system for efficiently extracting nucleic acid has at least the following beneficial effects:
1. by arranging the deformation membrane between the output port of the needle tube and the bottom of the inner cavity, when the telescopic mechanism drives the sliding body to move outwards at the bottom of the inner cavity, the deformation membrane deforms to absorb the solution, the solution is positioned between the needle head, the output port of the needle tube, the inner cavity and the deformation membrane and cannot contact the sliding body, the needle tube and the needle head only need to be thrown away after the use is finished, and the sliding handle can be repeatedly used, so that the environment is protected, and the cost is saved; the clamping mechanism is arranged so that the needle tube and the sliding body are in a relatively stable state in the action process, and the smoothness of operation is ensured.
2. The outer peripheral surface of the lower connecting cylinder is sleeved in the inner cavity of the needle tube, and the sliding body is positioned in the through hole of the sliding cylinder body to slide, so that liquid suction and discharge of an injection system are realized, the connection stability between the needle tube and the sliding body is ensured, and the air tightness between the sliding body and the inner cavity of the needle tube is also enhanced.
Drawings
FIG. 1 is a schematic perspective view of an injection system for efficiently extracting nucleic acid according to the present invention.
FIG. 2 is a front view of the needle cannula and needle of the present invention.
FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2 according to the present invention.
Fig. 4 is a schematic perspective view of the moving mechanism of the present invention.
Fig. 5 is a schematic perspective view of the clamping mechanism of the present invention.
Fig. 6 is a schematic perspective view of the sliding cylinder according to the present invention.
In the figure: a needle tube 1; an inner cavity 11; a tube body 12; a convex ring 121; a deformable film 13; a slider 2; a needle head 3;
a clamping mechanism 4; a first clamping assembly 41; a grip telescoping assembly 411; a clamping plate 412; an arc-shaped clamping groove 4121; a second clamping assembly 42;
a telescoping mechanism 5; a slider telescopic cylinder 51; a slide cylinder 52; an upper connector barrel 521; a lower connector barrel 522; a transition connection ring 523;
a moving mechanism 6; moving the telescoping assembly 61; a connection plate 611; moving the gantry 62;
a first conveyor belt 7; placing the bearing table 71;
a second conveyor belt 8; a solution bearing table 81 to be measured;
a third conveyor belt 9; a test tube carrier 91; a waste collection bin 10.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in fig. 1 to 6, the telescopic assemblies of the present invention are all cylinders; the invention relates to an injection system for efficiently extracting nucleic acid, which comprises an injection body, wherein the injection body comprises a needle tube 1, a needle head 3 connected to the output end of the needle tube 1 and a sliding body 2 in sealed sliding connection with an inner cavity 11 of the needle tube 1, the needle tube 1 is provided with an inner cavity 11 for containing solution, and a deformation film 13 for covering the bottom surface of the inner cavity 11 is formed on the bottom surface of the inner cavity 11 of the needle tube 1; the deformation film 13 comprises a sealing connection part with an annular outer diameter and a deformation part in the sealing connection part; the annular sealing connecting part is connected with the bottom surface of the inner cavity 11 through heat seal; the device also comprises a clamping mechanism 4 for clamping and fixing the needle tube 1 and a telescopic mechanism 5 for driving the sliding body 2 to slide so as to flow liquid into or discharge liquid from the inner cavity 11 of the needle tube 1. By arranging the deformation membrane 13 between the output port of the needle tube 1 and the bottom of the inner cavity 11, when the telescopic mechanism 5 drives the sliding body 2 to move outwards at the bottom of the inner cavity 11, the deformation membrane 13 deforms to absorb the solution, the solution is positioned between the needle head 3, the output port of the needle tube 1, the inner cavity 11 and the deformation membrane 13 and cannot contact with the sliding body 2, after the use is finished, only the needle tube 1 and the needle head 3 need to be thrown away, and the sliding handle can be repeatedly used, so that the environment is protected, and the cost is saved; the clamping mechanism 4 is arranged so that the needle tube 1 and the sliding body 2 are in a relatively stable state in the action process, and the smoothness of the operation is ensured.
Preferably, the device further comprises a first conveyer belt 7 for bearing the needle tubes 1 and the needles 3, a second conveyer belt 8 for bearing the solution to be detected, and a third conveyer belt 9 for bearing the detection test tubes, wherein the devices are conveyed by the conveyer belts, and the automation is improved.
Preferably, the surface of the first conveyor belt 7 is formed with a plurality of placing bearing platforms 71 arranged at intervals along the conveying direction, and the upper surface of the placing bearing platform 71 is formed with a plurality of placing holes arranged at intervals along the vertical direction of the conveying direction; the aperture of the containing hole is the same as the pipe diameter of the needle tube 1; multiple ones operate more quickly together;
a plurality of bearing platforms 81 of the solution to be detected are formed on the surface of the second conveyer belt 8 and are arranged at intervals along the conveying direction; multiple ones operate more quickly together;
a plurality of test tube bearing platforms 91 arranged at intervals along the conveying direction are formed on the surface of the third conveying belt 9; multiple ones operate together more quickly.
Preferably, a moving mechanism 6 for driving the gripping mechanism 4 and the telescopic mechanism 5 to reciprocate above the first conveyor belt 7, the second conveyor belt 8 and the third conveyor belt 9 is further included. The movement by the moving mechanism 6 is more reasonable and automatic.
Preferably, the moving mechanism 6 comprises a moving telescopic assembly 61 and a moving gantry 62; the movable telescopic component 61 is connected with the lower surface of the movable portal frame 62 in a sliding manner; the moving gantry 62 spans the first conveyor belt 7, the second conveyor belt 8 and the third conveyor belt 9; is more reasonable.
Preferably, the output end of the mobile telescopic assembly 61 is formed with a connection plate 611; the telescopic mechanism 5 includes a plurality of sliding body telescopic cylinders 51; the sliding body telescopic cylinder 51 is fixedly connected to the lower surface of the connecting plate 611, and the output end of the sliding body telescopic cylinder is fixedly connected with the sliding body 2; the connection is more stable, and the cylinder action is rapid.
Preferably, the sliding body 2 comprises a connecting rod and a sliding head; one end of the connecting rod is connected with the sliding body telescopic cylinder 51, and the other end is fixedly connected with the sliding head; the telescopic mechanism 5 further includes a slide cylinder 52 formed below the plurality of slide telescopic cylinders 51; the sliding cylinder 52 comprises an upper connecting cylinder 521, a lower connecting cylinder 522 and a transition connecting ring 523; the diameter of the transition connecting ring 523 is larger than that of the upper connecting cylinder 521 and larger than that of the lower connecting cylinder 522; the outer diameter of the lower connector barrel 522 is equal to the diameter of the inner cavity 11; the sliding cylinder 52 is provided with a through hole penetrating through the upper connecting cylinder 521, the lower connecting cylinder 522 and the transition connecting ring 523, and the horizontal cross section of the through hole is the same as that of the sliding head; the sliding head is connected with the through hole in a sealing and sliding manner, the outer peripheral surface of the lower connecting cylinder 522 is sleeved in the inner cavity 11 of the needle tube 1, and the sliding body 2 is positioned in the through hole of the sliding cylinder 52 to slide, so that liquid suction and discharge of an injection system are realized, the connection stability between the needle tube 1 and the sliding body 2 is ensured, and the air tightness between the sliding body 2 and the inner cavity 11 of the needle tube 1 is also enhanced. .
Preferably, the sliding cylinder 52 is fixedly connected to the connecting plate 611, which is more reasonable and saves space.
Preferably, the needle cannula 1 comprises a tube body 12 and a convex ring 121 formed at the opening of the lumen 11 of the tube body 12; the diameter of the convex ring 121 is the same as that of the transition connecting ring 523; the clamping mechanism 4 is fixedly connected with the connecting plate 611; the clamping mechanism 4 comprises a first clamping assembly 41 and a second clamping assembly 42 which clamp the convex ring 121 and the transition connecting ring 523; the first clamping assembly 41 and the second clamping assembly 42 are arranged oppositely and have the same structure; a flexible sealing ring is formed at an opening of an inner cavity 11 of the needle tube 1 to ensure the air tightness after sleeving, and a first clamping assembly 41 and a second clamping assembly 42 are arranged to clamp the convex ring 121 and the transition connecting ring 523 to prevent the needle tube 1 from sliding under the self weight.
Preferably, the first clamping assembly 41 includes a clamping retraction assembly 411 and a clamping plate 412 formed at an output end of the clamping retraction assembly 411; an arc notch is formed on one surface of the clamping plate 412 facing the needle tube 1; the clamping plate 412 is provided with an arc notch, and one surface facing the sliding cylinder 52 is provided with an arc clamping groove 4121; the diameter of the circular arc-shaped clamping groove 4121 is the same as that of the convex ring 121; the width of the circular arc-shaped clamping groove 4121 is equal to the thickness of the convex ring 121 plus the thickness of the transition connecting ring 523. The centre gripping is more stable, and horizontal direction and vertical direction all carry on spacingly.
Preferably, the needle tube waste collection box comprises a waste collection box 10, the used needle tube 1 and the used needle head 3 are discharged and treated together, a needle tube 1 clamping assembly is further formed beside the waste collection box 10, and the needle tube 1 clamping assembly comprises a left clamping part, a right clamping part and a driving cylinder for driving the left clamping part and the right clamping part to approach or separate from each other; the movable telescopic assembly 61 drives the needle tube 1 to move to the position above the waste collection box 10 and extend downwards, the needle tube 1 is clamped by the needle tube 1 clamping assembly, the first clamping assembly 41 and the second clamping assembly 42 are loosened, the movable telescopic assembly 61 contracts, and the needle tube 1 is loosened by the needle tube 1 clamping assembly and falls into the waste collection box 10.
Preferably, the gantry 62 is moved across the input of the waste collection bin 10, so that the entire process can be automated.
The working principle is as follows: the movable telescopic assembly 61 moves above the first conveyor belt 7 along the movable portal frame 62, each sliding cylinder 52 at the output end of the movable telescopic assembly 61 is aligned with each needle tube 1 inner cavity 11, and the sliding head of the sliding body 2 is close to the through hole opening of the sliding cylinder 52; the movable telescopic assembly 61 extends out, the lower connecting cylinder 522 on the sliding cylinder 52 extends into the inner cavity 11 of the needle tube 1, when the convex ring 121 and the transition connecting ring 523 are attached together, the first clamping assembly 41 and the second clamping assembly 42 are clamped oppositely, the convex ring 121 and the transition connecting ring 523 are clamped into the circular arc clamping groove 4121 of the clamping plate 412 on the first clamping assembly 41 and the second clamping assembly 42, the movable telescopic assembly 61 retracts, the movable telescopic assembly 61 moves onto the second conveying belt 8, each needle 3 is aligned with a container bearing a solution to be detected on the second conveying belt 8, the movable telescopic assembly 61 extends out until the needle 3 extends into the bottom of the container, the sliding body telescopic cylinder 51 contracts to drive the sliding body 2 to move upwards, the deformation membrane 13 deforms to absorb the solution, the solution is positioned between the needle 3, the output port of the needle tube 1, the inner cavity 11 and the deformation membrane 13 and cannot contact the sliding body 2, the movable telescopic assembly 61 extends and contracts, the movable telescopic assembly 61 moves onto the third conveying belt 9, after each needle head 3 is aligned with each test tube, the movable telescopic assembly 61 extends, the sliding body telescopic cylinder 51 contracts to drive the sliding body 2 to move downwards to push liquid into the test tube, the movable telescopic assembly 61 contracts, the movable telescopic assembly moves to the upper part of the waste collection box 10 to extend out, the needle tube 1 is clamped by the needle tube 1 clamping assembly, the first clamping assembly 41 and the second clamping assembly 42 are loosened, the movable telescopic assembly 61 contracts, and the needle tube 1 is loosened by the needle tube 1 to fall into the waste collection box 10; the automatic extraction of the nucleic acid solution is realized by the movement of each conveyer belt and the above actions.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (10)
1. An injection system for efficiently extracting nucleic acid comprises an injection body, wherein the injection body comprises a needle tube, a needle head connected to the output end of the needle tube and a sliding body in sealed sliding connection with the inner cavity of the needle tube, the needle tube is provided with an inner cavity for containing solution, and the injection system is characterized in that a deformation film for covering the bottom surface of the inner cavity is formed on the bottom surface of the inner cavity of the needle tube; the deformation membrane comprises a sealing connecting part and a deformation part, wherein the sealing connecting part is close to the outer diameter and is annular, and the deformation part is positioned in the sealing connecting part; the needle tube clamping device also comprises a clamping mechanism for clamping and fixing the needle tube and a telescopic mechanism for driving the sliding body to slide so as to flow liquid into or discharge liquid from the inner cavity of the needle tube.
2. The injection system for high efficiency nucleic acid extraction according to claim 1, further comprising a first conveyor belt for carrying the needle tube and the needle head, a second conveyor belt for carrying the solution to be tested, and a third conveyor belt for carrying the test tube.
3. The injection system for high efficiency nucleic acid isolation according to claim 2, wherein the first conveyor belt has a plurality of placing platforms formed on a surface thereof and spaced apart from each other in the conveying direction, and the placing platforms have a plurality of placing holes formed on an upper surface thereof and spaced apart from each other in a direction perpendicular to the conveying direction; the aperture of the containing hole is the same as the pipe diameter of the needle tube;
a plurality of bearing tables for the solution to be detected are formed on the surface of the second conveying belt at intervals along the conveying direction;
the third conveyer belt surface is formed with a plurality of test tube plummer that set up along the direction of delivery interval.
4. The injection system for high efficiency nucleic acid isolation according to claim 2, further comprising a moving mechanism for driving the holding mechanism and the telescoping mechanism to reciprocate above the first conveyor belt, the second conveyor belt, and the third conveyor belt.
5. The injection system for efficiently extracting nucleic acid according to claim 4, wherein the moving mechanism comprises a moving telescopic assembly and a moving gantry; the movable telescopic component is connected with the lower surface of the movable portal frame in a sliding manner; the movable portal frame spans the first conveying belt, the second conveying belt and the third conveying belt.
6. The injection system for high efficiency nucleic acid extraction according to claim 5, wherein the output end of the movable telescopic assembly is formed with a connection plate; the telescopic mechanism comprises a plurality of sliding body telescopic cylinders; the sliding body telescopic cylinder is fixedly connected to the lower surface of the connecting plate, and the output end of the sliding body telescopic cylinder is fixedly connected with the sliding body.
7. The injection system for high efficiency nucleic acid extraction according to claim 6, wherein the sliding body comprises a connecting rod and a sliding head; one end of the connecting rod is connected with the sliding body telescopic cylinder, and the other end of the connecting rod is fixedly connected with the sliding head; the telescopic mechanism also comprises a sliding cylinder body formed below the plurality of sliding body telescopic cylinders; the sliding cylinder body comprises an upper connecting cylinder, a lower connecting cylinder and a transition connecting ring; the diameter of the transition connecting ring is larger than that of the upper connecting cylinder and larger than that of the lower connecting cylinder; the outer diameter of the lower connecting cylinder is equal to the diameter of the inner cavity; the sliding cylinder is provided with a through hole penetrating through the upper connecting cylinder, the lower connecting cylinder and the transition connecting ring, and the horizontal cross section of the through hole is the same as that of the sliding head; the sliding head is connected with the through hole in a sealing and sliding mode.
8. The injection system for extracting nucleic acid with high efficiency as claimed in claim 7, wherein the sliding cylinder is fixedly connected to the connecting plate.
9. The injection system for efficiently extracting nucleic acid according to claim 7, wherein the needle tube comprises a tube body and a convex ring formed at an opening of an inner cavity of the tube body; the diameter of the convex ring is the same as that of the transition connecting ring; the clamping mechanism is fixedly connected with the connecting plate; the clamping mechanism comprises a first clamping assembly and a second clamping assembly which clamp the convex ring and the transition connecting ring; the first clamping assembly and the second clamping assembly are arranged oppositely and have the same structure.
10. The injection system for efficiently extracting nucleic acid according to claim 9, wherein the first clamping assembly comprises a clamping telescopic assembly and a clamping plate formed at an output end of the clamping telescopic assembly; an arc-shaped notch is formed on one surface of the clamping plate facing the needle tube; the clamping plate is provided with the arc-shaped notch, and an arc-shaped clamping groove is formed in one surface, facing the sliding cylinder, of the clamping plate; the diameter of the circular arc clamping groove is the same as that of the convex ring; the groove width of the circular arc-shaped clamping groove is equal to the thickness of the convex ring plus the thickness of the transition connecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330627.3A CN112852607A (en) | 2021-03-26 | 2021-03-26 | Injection system for efficiently extracting nucleic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330627.3A CN112852607A (en) | 2021-03-26 | 2021-03-26 | Injection system for efficiently extracting nucleic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112852607A true CN112852607A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110330627.3A Withdrawn CN112852607A (en) | 2021-03-26 | 2021-03-26 | Injection system for efficiently extracting nucleic acid |
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| Country | Link |
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| CN (1) | CN112852607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505109A (en) * | 2022-01-17 | 2022-05-17 | 吴锦辉 | Endocrine sample is dropping liquid equipment in batches |
-
2021
- 2021-03-26 CN CN202110330627.3A patent/CN112852607A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505109A (en) * | 2022-01-17 | 2022-05-17 | 吴锦辉 | Endocrine sample is dropping liquid equipment in batches |
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Application publication date: 20210528 |