CN117004476A - Nucleic acid extraction device, method and film tearing mechanism for molecular testing - Google Patents

Abstract

The invention relates to a nucleic acid extraction device and method for molecular inspection and a film tearing mechanism. The nucleic acid extraction device is used for respectively injecting the samples in the sampling containers into a plurality of extraction tanks on an extraction tray. The nucleic acid extraction device comprises a film tearing mechanism, an upper cover mechanism, a liquid transferring mechanism, an extraction tray transferring mechanism and a nucleic acid extraction module. The film tearing mechanism firstly uses a film turning head to turn over the corner of the sealing film reversely folded on the bottom surface of the periphery of the extraction tray, and then uses a film tearing clamping jaw to clamp the turned-over corner and tear off the sealing film; the upper cover mechanism opens the upper cover of the sampling container; the liquid transferring mechanism uses a liquid transferring device to inject the sample in the sampling container into an extraction tank on the extraction tray; the extraction tray transfer mechanism moves the extraction tray after the treatment into the nucleic acid extraction membrane group. Therefore, the invention enables the nucleic acid extraction operation to be highly automated to greatly reduce manpower and improve the operation quality.

Description

Nucleic acid extraction device, method and film tearing mechanism for molecular testing

Technical field

The invention relates to an automated equipment for a biochemical laboratory, in particular to a nucleic acid extraction device for molecular testing.

prior art

Currently, when conducting molecular testing operations, such as RNA testing of the new coronavirus, the collected specimens must first be subjected to nucleic acid extraction. Specifically, the nucleic acid extraction operation involves tearing off the sealing film on the top of a nucleic acid extraction plate with 96 deep holes, and then dispensing the samples, that is, opening the 96 inspection containers one by one and dispensing them. Inject the specimen in the collection container into one of the deep holes of the nucleic acid extraction tray; after the specimen injection is completed, carefully seal the collection container and dispose of it as medical waste. The nucleic acid extraction tray injected with the specimen is placed in a nucleic acid extraction module for nucleic acid extraction. After the extraction is completed, the subsequent real-time quantitative polymerase chain reaction (Real-time Quantitative Polymerase.Chain Reaction, Q-PCR for short) can be continued. ) detection.

However, the existing nucleic acid extraction process is fully manual, in which the specimen dispensing operation and the tearing of the sealing film are cumbersome, time-consuming and labor-intensive. Moreover, human error and cross-contamination are prone to occur during the operation, which affects the detection accuracy and the safety of the testing personnel. sex.

Therefore, the existing nucleic acid extraction devices and methods for molecular testing need to be improved.

Contents of the invention

In view of the aforementioned shortcomings and shortcomings of the prior art, the present invention provides a nucleic acid extraction device, method and film tearing mechanism for molecular testing to automate the nucleic acid extraction operation of molecular testing, thereby greatly reducing manpower and improving work quality. .

In order to achieve the above object, the technical means used in the present invention is to design a film tearing mechanism for molecular testing, which is used to remove the sealing film from an extraction disk, and the outer ring surface of the top of the extraction disk protrudes There is a flange; the sealing film is attached to the top surface of the extraction plate, and a folded peripheral portion of the sealing film is folded at the flange of the extraction plate, so that the folded peripheral portion is located on the extraction plate. Below the flange; the film tearing mechanism includes:

A tear-off film base used to fix the extraction tray;

A film-turning component, which is movably disposed on the tear-off film base toward the folded circumferential portion of the sealing film. The film-turning component has:

A film-turning head protrudes from a top surface of the film-turning component and is used to abut a bottom surface of the flange of the extraction plate; when the film-turning component moves toward the reflexed peripheral portion of the sealing film , one side of the film-turning head pushes against the reflexed circumferential portion and flips the reflexed circumferential portion from the bottom of the flange to the outside of the flange;

A tearing film clamp, which is movably and rotatably provided on the tearing film base; the tearing film clamping claw is used to clamp the reflexed peripheral portion turned to the outside of the flange, the tearing film clamping claw The movement and rotation are used to separate the sealing film from the extraction disk.

In order to achieve the above object, the present invention further provides a nucleic acid extraction device for molecular testing, which is used to process multiple sampling containers and an extraction tray; each sampling container has a body and an upper cover, and the body There is a specimen, and the upper cover seals the specimen in the body; each extraction tray has a plurality of extraction tanks and a sealing film, the sealing film is attached to the top surface of the extraction tray and seals the extraction tank ;The nucleic acid extraction device includes:

A base, and a film tearing mechanism, a cover mechanism, a pipetting mechanism, an extraction plate transfer mechanism and a nucleic acid extraction module provided on the base; wherein

The film tearing mechanism is used to remove the sealing film from the extraction plate. A flange protrudes from the outer ring surface of the top of the extraction plate; a folded peripheral portion of the sealing film is on the flange of the extraction plate. The film tearing mechanism includes:

A tear-off film base, which is located on the base and used to fix the extraction plate;

A film-turning component, which is movably disposed on the tear-off film base toward the folded circumferential portion of the sealing film. The film-turning component has:

A film-turning head protrudes from a top surface of the film-turning component and is used to abut a bottom surface of the flange of the extraction plate; when the film-turning component moves toward the reflexed peripheral portion of the sealing film , one side of the film-turning head pushes against the reflexed circumferential portion and flips the reflexed circumferential portion from the bottom of the flange to the outside of the flange;

A tearing film clamp, which is movably and rotatably provided on the tearing film base; the tearing film clamping claw is used to clamp the reflexed peripheral portion turned to the outside of the flange, the tearing film clamping claw The movement and rotation are used to separate the sealing film from the extraction disk;

The upper cover mechanism is used to separate the upper cover of each sampling container from the main body;

The pipetting mechanism contains

At least one pipette; each of the at least one pipette is used to suck the specimen in one of the sampling containers and inject the sucked specimen into one of the extraction tanks of the extraction tray;

The extraction disk transfer mechanism is used to move the extraction disk with the specimen injected into the extraction tank into the nucleic acid extraction module.

In order to achieve the above purpose, the present invention also provides a nucleic acid extraction method for molecular testing, which includes the following steps:

Prepare the extraction plate and specimen: prepare an extraction plate, with a flange protruding from the outer ring surface of the top of the extraction plate, a sealing film attached to the top surface of the extraction plate and a folded circumferential portion of the sealing film at The flange is folded so that the folded peripheral portion is located below the flange of the extraction plate; a film-turning head of a film tearing mechanism abuts a bottom surface of the flange of the extraction plate, and at the same time, the turning head The film head moves toward the folded circumferential portion of the sealing film so that the folded circumferential portion is flipped from below the flange to the outside of the flange; a film tearing claw clamps the film that is flipped to the outside of the flange. The folded circumferential portion is then rotated and moved by the tearing claw to separate the sealing film from the extraction plate; an upper cover mechanism connects an upper cover of at least one of the plurality of sampling containers to the The main body of the sampling container is separated;

Dispensing and extraction: Each pipette of a pipetting mechanism sucks the specimen in one of the plurality of sampling containers, and injects the sucked specimen into multiple containers on the extraction plate. into one of the extraction tanks; then the cover mechanism and the pipetting mechanism continue to inject the specimens in the remaining sampling containers into the remaining extraction tanks on the extraction plate; An extraction disk transfer mechanism moves the extraction disk with the specimen injected into the extraction tank into a nucleic acid extraction module.

The advantages of the present invention are that the film tearing mechanism can automatically separate the sealing film on the top surface of the extraction tray from the extraction tray, the upper cover mechanism can automatically open the sampling container, and the pipetting mechanism can automatically inject the specimen from the sampling container into the extraction tray. The extraction tray transfer mechanism can automatically move the extraction tray to the nucleic acid extraction module for extraction operations, thereby enabling nucleic acid extraction operations to be highly automated, greatly reducing manpower and improving operation quality.

Furthermore, in the film-tearing mechanism for molecular testing, the film-turning component includes: a film-turning body; the film-turning head can be slid up and down on the film-turning body; a lifting elastic member; on the film-turning body, and push upward against the film-turning head.

Furthermore, the film tearing mechanism for molecular testing, wherein: the film tearing mechanism has a first linear module, which is located on the film tearing base, and has a first slide seat, the first linear module The sliding seat can move along a first direction; a second linear module is provided on the first sliding seat of the first linear module and has a second sliding seat, and the second sliding seat can move along a first direction. Two-direction movement; the second direction is not parallel to the first direction; a third linear module is provided on the second sliding seat of the second linear module and has a third sliding seat, the third The sliding seat can move up and down; the film turning component is provided on the third sliding seat of the third linear module; and the tearing film clamp is rotatably provided on the third sliding seat of the third linear module.

Furthermore, in the nucleic acid extraction device for molecular testing, the upper cover mechanism includes: a fixed base, which is provided on the base; a rotating stage, which can be rotated on a rotation axis as an axis. The fixed base; at least one body clamp, which is provided on the rotating table, and each of the at least one body clamp is used to clamp one of the sampling containers; a cap loosening assembly, which includes at least one cap loosening clamp, the at least one cap loosening clamp A cover-loosening clamp is used to clamp the upper cover of the at least one sampling container on the at least one body clamp and unscrew the upper cover; a cover-moving assembly includes at least one cover-moving clamp, which is at least A cover-moving clamp is used to clamp the upper cover of at least one sampling container on the at least one body clamp, and can move the loosened upper cover to one side of the body of the sampling container; A cover closing assembly, which includes at least one cover closing clamp, the at least one cover closing clamp is used to clamp the upper cover of the at least one sampling container on the at least one body clamp and tighten the upper cover; Wherein, the cap loosening assembly, the cap moving assembly and the cap closing assembly are provided on the fixed base and above the rotating table and are spaced around the rotation axis; the rotation of the rotating table causes the at least one body clamp to clamp The at least one inspection container corresponds to the at least one cap loosening clamp, the at least one cap moving clamp and the at least one cap closing clamp in sequence.

Furthermore, in the nucleic acid extraction device for molecular testing, the loose cover assembly of the upper cover mechanism includes: a loose cover linear module, which is located on the fixed base and has a cover opening slide. , the cap opening slide seat can move up and down; at least one cap loosening motor is provided on the cap opening slide seat; the at least one cap loosening clamp is provided on the cap opening slide seat of the cap loosening linear module and is connected to the cap opening slide seat The spindle of at least one cap loosening motor; wherein the at least one cap loosening motor can drive the at least one cap loosening clamping claw to rotate, and thereby can unscrew the upper cover clamped by the cap loosening clamping claw.

Furthermore, in the nucleic acid extraction device for molecular testing, the cover moving assembly of the upper cover mechanism includes: a first cover moving actuator, which is provided on the fixed base and has a first cover moving actuator. a cover moving actuator block, the first cover moving actuator block can move relative to the fixed base; a second cover moving actuator, which is provided on the first cover moving actuator of the first cover moving actuator block, and has a second cover-moving actuating block, which can move up and down; the moving direction of the first cover-moving actuating block is not parallel to the moving direction of the second cover-moving actuating block. ; The at least one cover-moving clamping claw is provided on the second cover-moving actuating block of the second cover-moving actuator.

Furthermore, in the nucleic acid extraction device for molecular testing, the unprocessed sampling container is placed on a sorting area of the base; the nucleic acid extraction device further has a container transfer mechanism located on The base; the container transfer mechanism has a container clamp, which can move to the sorting area of the base and clamp one of the sampling containers located in the sorting area; the container clamp can move to the position The at least one body clamp corresponding to the upper cover mechanism.

Furthermore, in the nucleic acid extraction method for molecular testing, during the dispensing and extraction steps, each of the at least one pipette of the pipetting mechanism absorbs one of the plurality of sampling containers. After testing the specimen in the container, the upper cover mechanism combines the upper cover of the sampling container to the body and seals the remaining specimen in the sampling container.

Description of the drawings

Figure 1 is a schematic three-dimensional appearance diagram of the present invention.

Figure 2 is a three-dimensional appearance view of the base and the extraction plate output mechanism of the present invention.

Figure 3 is a three-dimensional appearance view of the sampling container supply mechanism of the present invention.

Figure 4 is a three-dimensional appearance view of the disk storage rack of the present invention.

Figure 5 is a three-dimensional appearance view of the film tearing mechanism of the present invention.

Figure 6 is a three-dimensional appearance view of the pipetting mechanism of the present invention.

Fig. 7 is a three-dimensional appearance view of the container transfer mechanism of the present invention.

Figure 8 is a three-dimensional appearance view of the upper cover mechanism of the present invention.

Figure 9 is an exploded three-dimensional view of the upper cover mechanism of the present invention.

Figure 10 is a partial rear view of the present invention.

11 to 13 are schematic three-dimensional diagrams of the upper cover mechanism of the present invention.

Figure 14 is a partial perspective view of the present invention.

Figure 15 is a three-dimensional appearance view of the film tearing mechanism of the present invention.

Figure 16 is an exploded three-dimensional view of the film tearing mechanism of the present invention.

Figure 17 is an exploded three-dimensional view of some components of the film tearing mechanism of the present invention.

Figure 18 is a three-dimensional appearance view of the film tearing mechanism of the present invention from another angle.

Figures 19 and 20 are side views of the film tearing mechanism of the present invention, showing that the film-turning head pushes against the folded circumferential portion of the sealing film and causes the folded circumferential portion to turn over.

Figures 21 and 22 are three-dimensional action views of the film tearing mechanism of the present invention, showing that the film tearing clamp separates the sealing film from the extraction plate.

Figure 23 is another partial perspective view of the present invention.

Figure 24 is a flow chart of the nucleic acid extraction method for molecular testing of the present invention.

Detailed ways

Please refer to Figures 1, 3, 18, 19 and 23. The nucleic acid extraction device for molecular testing of the present invention is used to process multiple sampling containers 91 and an extraction tray 92. Each sampling container 91 has a body 911 and an upper cover 912. The body 911 contains a liquid specimen, and the upper cover 912 seals the specimen within the body 911. Each extraction tray 92 has a plurality of extraction slots 921 and a sealing film 922. The sealing film 922 is attached to the top surface of the extraction tray 92 and seals all the extraction slots 921. A flange 923 protrudes from the outer annular surface of the top of the extraction plate 92, and the flange 923 is preferably annular. A folded peripheral portion 9221 of the sealing film 922 is folded at the flange 923 of the extraction plate 92 so that the folded peripheral portion 9221 is located below the flange 923 .

Specifically, 96 extraction slots 921 are neatly arranged on the top surface of each extraction tray 92 . The body 911 of each sampling tube 91 is a tube body. The sampling containers 91 are supplied to the nucleic acid extraction device through a plurality of sampling tube sorting trays 93. There are 96 sampling containers 91 installed on each sampling tube sorting tray 93. The main function of the nucleic acid extraction device is to inject the specimens in the 96 sampling containers 91 on each sampling tube sorting tray 93 into the 96 extraction slots 921 on an extraction tray 92, and then further perform further processing on the extraction tray 92. operate.

The aforementioned nucleic acid extraction device includes: a base 10, a film tearing mechanism 20, a cover mechanism 30, a pipetting mechanism 40, an extraction disk transfer mechanism 50 and a nucleic acid extraction module 60 provided on the base 10 ; In this embodiment, the nucleic acid extraction device further includes a sampling container supply mechanism 70 and a container transfer mechanism 80 .

Please refer to Figures 1, 2 and 4. A plate storage rack 11 is provided on the base 10. A plurality of independent stacking spaces are formed on the plate storage rack 11, and a plurality of unused extraction plates 92 are stacked. Put it in one of the stacking spaces, and the other stacking spaces are preferably stacked with various extraction reagent trays.

Please refer to FIG. 1 , FIG. 14 to FIG. 18 , the aforementioned film tearing mechanism 20 can remove the sealing film 922 from the extraction tray 92 . The film tearing mechanism 20 includes a film tearing base 21, a film turning component 25 and a film tearing clamp 27; and in this embodiment, it further has a first linear module 22, a second linear module 23, a third linear module 24 and a gripper rotating stage 26 .

The film tearing base 21 is provided on the base 10 and can fix the extraction tray 92 . Specifically, a positioning groove is formed on the tear film base 21, and a plurality of clamping cylinders 211 are provided. The bottom of the extraction disk 92 can be placed in the positioning groove, and the bottom of the extraction disk 92 is held by the clamping cylinders 211. Fixed in positioning slot.

The first linear module 22 is disposed on the tear film base 21 and has a first sliding seat 221 (as shown in FIG. 16 ). The first sliding seat 221 can be controlled to move along a first direction D1. The second linear module 23 is disposed on the first slide 221 of the first linear module 22 and has a second slide 231. The second slide 231 can be controlled to move along a second direction D2, and the second slide 231 can be controlled to move along a second direction D2. The second direction D2 is not parallel to the first direction D1. The third linear module 24 is disposed on the second sliding seat 231 of the second linear module 23 and has a third sliding seat 241. The third sliding seat 241 can be controlled to move up and down. In this embodiment, the first direction D1, the second direction D2, and the moving direction of the third slide 241 are perpendicular to each other.

Please refer to FIGS. 18 to 20 . The flip-up membrane assembly 25 is disposed on the third slide seat 241 of the third linear module 24 so as to be movable toward the folded peripheral portion 9221 of the sealing film 922 , so that the flip-up membrane assembly 25 can Move toward the folded peripheral portion 9221 of the sealing film 922; in other preferred embodiments, the film-turning component 25 can also be installed on the tear-off base 21 through other mechanisms, as long as the film-turning component 25 can move toward the sealing film 922 The reflexed circumferential part 9221 can be moved.

The membrane-turning assembly 25 has a membrane-turning head 251, a membrane-turning body 252 and a lifting elastic member 253. The top surface of the membrane turning body 252 is recessed with a groove, and the membrane turning head 251 can slide up and down through the groove of the membrane turning body 252. The top of the membrane turning head 251 protrudes from the top surface of the membrane turning body 252, and the top Form a right angle. The top end of the membrane-turning head 251 is used to abut the bottom surface of the flange 923 of the extraction plate 92 , whereby when the membrane-turning assembly 25 moves toward the folded peripheral portion 9221 of the sealing film 922 , the sides of the membrane-turning head 251 can be pushed against The edge of the circumferential portion 9221 is folded back so that the folded circumferential portion 9221 is turned over from the bottom of the flange 923 to the outside of the flange 923 .

The lifting elastic member 253 is disposed in the groove of the flip-up body 252 and pushes upward against the flip-up head 251 so that the top of the flip-up head 251 tends to protrude upward from the top surface of the flip-up body 252 and remains against the flange. The underside of 923.

Please refer to FIG. 17 , FIG. 21 and FIG. 22 . The clamping claw rotary table 26 is rotatably provided on the third sliding seat 241 of the third linear module 24 , and the tearing film clamping claw 27 is provided on the clamping claw rotating table 26 on the film tearing base 21 , so that the tearing film clamping claw 27 is movably and rotatably disposed on the tearing film base 21 . The film tearing clamp 27 is used to clamp the reflexed peripheral portion 9221 that is turned to the outside of the flange 923 of the extraction plate 92, and then cooperates with the movement generated by the linear modules 22, 23, 24 and the rotation of the clamp rotating table 26 To separate the sealing film 922 from the extraction tray 92 .

Please refer to FIGS. 1 and 3 . The aforementioned sampling container supply mechanism 70 is used to place unprocessed sampling containers 91 on a sorting area 12 of the base 10 . The sampling container supply mechanism 70 includes an input rack 71 , an output rack 72 and a sorting tray transfer mechanism 73 . A plurality of sampling tube sorting trays 93 are vertically stacked on the input rack 71 , and unprocessed sampling containers 91 are placed on the sampling tube sorting tray 93 . The sorting tray transfer mechanism 73 can move the sampling tube sorting tray 93 at the bottom of the input rack 71 from the input rack 71 to the sorting area 12 of the base 10 to wait for subsequent processing. After all 91 are processed, the sorting tray transfer mechanism 73 will move the collection tube sorting tray 93 from the sorting area 12 to the output rack 72 for storage. The sampling container supply mechanism 70 is an existing technology, so its specific structure will not be described again.

Please refer to Figure 1, Figure 7 and Figure 10. The aforementioned container transfer mechanism 80 is provided on the base 10. The container transfer mechanism 80 has a container clamp 81. The container clamp 81 can move to the organizing area of the base 10. 12 and clamp one of the sampling containers 91 located in the sorting area 12 , and the container clamp 81 can move to the upper cover mechanism 30 to transfer the clamped sampling container 91 to the upper cover mechanism 30 .

Please refer to FIG. 1 , FIG. 8 to FIG. 10 , the aforementioned upper cover mechanism 30 is used to separate the upper cover 912 of each sampling container 91 from the container transfer mechanism 80 from the main body 911 . In this embodiment, the upper cover mechanism 30 includes a fixed base 31 , a rotating platform 32 , a plurality of body clamps 33 , a cover loosening component 34 , a cover moving component 35 and a cover closing component 36 .

The fixed base 31 is provided on the base 10 , and the rotating table 32 is rotatably provided on the fixed base 31 with a rotation axis L as an axis. The body clamps 33 are provided on the rotary table 32 and are preferably spaced around the rotation axis L at the periphery of the rotary table 32; specifically, there are eight body clamps 33 on the rotary table 32, with two as a group and four as a group. The group body clamps 33 are arranged at equal angular intervals on the periphery of the rotating platform 32 . Each body clamp 33 can clamp one sampling container 91 .

Please refer to FIG. 9 and FIG. 11 . As shown in FIG. 9 and FIG. 11 , the loose cap assembly 34 includes two loose cap linear modules 341 , two loose cap motors 342 and two loose cap clamps 343 . The loose cover linear module 341 is provided on the fixed base 31 and has a cover opening sliding seat 3411, which can move up and down. The cap loosening motor 342 and the cap loosening clamp 343 are arranged on the cap opening slide 3411. The two cap loosening clamps 343 are respectively connected to the spindles of the two cap loosening motors 342, so that the cap loosening motor 342 can drive the corresponding cap loosening clamps. 343 spins. The two cap loosening clamps 343 can respectively clamp the upper caps 912 of the two sampling containers 91 on the two body clamps 33 of the same group and unscrew the upper caps 912 by driving the cap loosening motor 342 (as shown in Figure 11) .

Please refer to Figures 9 and 12. The cap-moving assembly 35 includes two cap-moving clamps 351. The two cap-moving clamps 351 can respectively clamp the two upper ends of the two sampling containers 91 on the two body clamps 33 of the same group. Cover 912, and the unscrewed upper cover 912 can be moved to one side of the body 911 of the sampling container 91, so that the upper opening of the body 911 is exposed (as shown in Figure 12).

Specifically, the cover moving assembly 35 includes a first cover moving actuator 352 and a second cover moving actuator 353 . The first cover-moving actuator 352 is preferably a cylinder, which is provided on the fixed base 31 and has a first cover-moving actuating block 3521. The first cover-moving actuating block 3521 can be driven by compressed air to move relative to the first cover moving actuator 352. The fixed base 31 moves. The second cover moving actuator 353 is provided on the first cover moving actuating block 3521 of the first cover moving actuator 352, and has a second cover moving actuating block 3531. The second cover moving actuating block 3531 can Moving up and down. The moving direction of the first cover-moving actuating block 3521 is non-parallel to the moving direction of the second cover-moving actuating block 3531, and is specifically perpendicular to each other; more specifically, the first cover-moving actuating block 3521 can be controlled Then, the distance between the corresponding second cover moving actuator 353 and the rotation axis L is changed by linearly moving in the radial direction of the rotation axis of the rotation table 32 .

The two cover-moving clamping claws 351 are provided on the second cover-moving actuating block 3531 of the second cover-moving actuator 353, whereby the cover-moving clamping claw 351 can first move horizontally to a position by the first cover-moving actuator 352. above the inspection container 91, and then move downward to the upper cover 912 by the second cover moving actuator 353 to clamp the upper cover 912, and then move the upper cover 912 by the actions of the cover moving actuators 352 and 353. Clamp away from the body 911.

Please refer to Figure 9 and Figure 13. The cover assembly 36 includes two cover clamps 361. The two cover clamps 361 are respectively used to clamp the upper ends of the two sampling containers 91 on the two body clamps 33 of the same group. Cover 912 and the upper cover 912 can be screwed on (as shown in Figure 13). The specific structure of the cover closing assembly 36 is the same as that of the loose cover assembly 34, so it will not be described again here.

Please refer to FIGS. 11 to 13 . The cover loosening component 34 , the cover moving component 35 and the cover closing component 36 of the upper cover mechanism 30 are provided on the fixed base 31 and above the rotating table 32 and are spaced around the rotation axis L1 . The rotation of the rotary table 32 causes the positions of the two inspection containers 91 held by the two main body clamps 33 of the same group to correspond to the two cap loosening clamps 343, the two cap moving clamps 351 and the two cap closing clamps 361 in order, thereby passing through The clamping claws 343, 351, and 361 loosen, move, and tighten the upper cover 912 of the sampling container 91 in sequence.

Please refer to FIG. 1 , FIG. 5 and FIG. 23 . The aforementioned pipetting mechanism 40 includes two pipettes 41 . The two pipettes 41 are respectively used to suck the liquid located in the upper cover mechanism 30 and positioned corresponding to the cover removal clamp 351 . 2. Collect the sample in the container 91, and inject the sample into one of the extraction slots 921 of the extraction tray 92. Specifically, the pipetting mechanism 40 includes a plurality of pipetting linear modules 42 connected in sequence. The pipetting linear modules 42 allow the pipette 41 to have multiple degrees of freedom of movement and can move above the base 10 . The pipetting mechanism 40 is an existing technology, so its specific structure will not be described again here.

Please refer to FIGS. 1 and 6 . The aforementioned extraction disk transfer mechanism 50 is used to move the extraction disk 92 injected with the specimen into the nucleic acid extraction module 60 (as shown in FIG. 1 ). Specifically, the extraction plate transfer mechanism 50 is disposed on the crossbeam (not shown in the figure) above the base 10, and includes a plate clamp 51 and a plurality of plate transfer linear modules 52 connected in sequence. The clamping jaw 51 can clamp the extraction tray 92, and the tray transfer linear module 52 allows the tray clamping jaw 51 to have multiple degrees of freedom of movement and can move above the base 10. The extraction tray transfer mechanism 50 is an existing technology, so its specific structure will not be described again here. The nucleic acid extraction module 60 is also a standard component used for molecular testing in the prior art, so its specific structure will not be described again here.

Please refer to Figure 24. The nucleic acid extraction method for molecular testing of the present invention includes the following steps: preparing an extraction plate and specimen (S1), and dispensing and extracting (S2). The nucleic acid extraction method in this embodiment is performed using the aforementioned nucleic acid extraction device, but is not limited to this.

Please refer to Figure 1 and Figure 15. When "preparing the extraction tray and specimen", prepare the extraction tray 92 as mentioned above, store the extraction tray 92 in the tray storage rack 11 of the base 10, and then move it with the extraction tray. The carrier mechanism 50 moves one of the extraction trays 92 from the tray storage rack 11 to the film tearing base 21 of the film tearing mechanism 20 and is fixed on the film tearing base 21 .

Please refer to Figures 18 to 20. Then, the film turning head 251 of the film tearing mechanism 20 moves below the flange 923 of the extraction tray 92, and the top of the film turning head 251 abuts upward against the bottom surface of the flange 923. At the same time, The film-turning head 251 moves toward the folded circumferential portion 9221 of the sealing film 922, so that the side surface of the film-turning head 251 pushes against the edge of the folded circumferential portion 9221, thereby causing the folded circumferential portion 9221 to flip from the bottom of the flange 923 to the convex position. outside edge 923.

Please refer to Figure 21 and Figure 22. Then, the tearing film clamp 27 clamps the folded peripheral portion 9221 that is turned to the outside of the flange 923, and then the tearing film clamp 27 rotates and moves to make the sealing film 922 and The extraction disk 92 is separated, thereby exposing the opening of the extraction groove 921 on the extraction disk 92 . After the sealing film 922 is removed, the extraction tray 92 is moved to a liquid injection area 13 adjacent to the pipetting mechanism 40 using the extraction tray transfer mechanism 50 .

Please refer to Figure 1, Figure 7 and Figure 10. While the extraction tray transfer mechanism 50 and the film tearing mechanism 20 are operating, the container transfer mechanism 80 moves the sampling container 91 located in the sorting area 12 to the upper cover mechanism. 30 and is clamped by a set of body clamps 33. The rotary table 32 rotates 90 degrees to move the sampling container 91 to a position corresponding to the cap loosening assembly 34 (as shown in Figure 11). At this time, the upper cover 912 of the sampling container 91 is unscrewed with the cap loosening clamp 343; the upper cover 912 is unscrewed. After loosening, the rotating table 32 rotates 90 degrees again to move the inspection container 91 to a position corresponding to the cover moving assembly 35 (as shown in Figure 12). At this time, the upper cover 912 is separated from the body 911 with the cover moving clamp 351 and the upper cover is removed. Move to one side of the body 911 so that the upper opening of the body 911 is exposed.

Please refer to Figure 23, during "dispensing and extraction", the two pipettes 41 of the pipetting mechanism 40 respectively suck the two specimens in the two sampling containers 91 at the cover transfer assembly 35, and transfer the sucked The two samples are respectively injected into two of the extraction slots 921 on the extraction tray 92. After the injection is completed, the cover moving clamp 351 of the upper cover mechanism 30 puts the upper cover 912 back onto the body 911 (this state is not shown in the figure), and the rotating table 32 rotates 90 degrees to move the sampling container 91 to the position corresponding to the cover closing assembly 36 (As shown in FIG. 13 ), the upper cover 912 is tightened with the cover closing clamp 361 , thereby sealing the remaining specimen in the sampling container 91 . The rotary table 32 rotates 90 degrees again, and the container transfer mechanism 80 returns the processed sampling containers 91 to the sampling tube sorting tray 93 .

Then, the container transfer mechanism 80 , the upper cover mechanism 30 and the pipetting mechanism 40 continue to inject the specimens in the remaining unprocessed sampling containers 91 on the sampling tube sorting tray 93 into the remaining extraction containers on the extraction tray 92 . In the tank 921, the extraction disk transfer mechanism 50 finally moves the extraction disk 92 with the sample injected into the nucleic acid extraction module 60 to perform the nucleic acid extraction operation. After the operation of the nucleic acid extraction module 60 is completed, the extraction disk transfer mechanism 50 takes out the extraction disk 92 from the nucleic acid extraction module 60 and moves it to an extraction disk output mechanism 94 (as shown in Figure 2). The extraction disk 92 is on the extraction disk. The output mechanism 94 is waiting to be clamped by another machine other than the present invention for subsequent molecular testing operations.

In summary, the film tearing mechanism 20 of the present invention can automatically separate the sealing film 922 on the top surface of the extraction tray 92 from the extraction tray 92, the upper cover mechanism 30 can automatically open the sampling container 91, and the pipetting mechanism 40 can automatically The specimen in the test container 91 is injected into the extraction tray 92, and the extraction tray transfer mechanism 50 can automatically move the extraction tray 92 to the nucleic acid extraction module 60 for extraction operation, thereby enabling the nucleic acid extraction operation to be highly automated, greatly reducing manpower and improving work efficiency. quality.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone in the technical field who has A person of ordinary skill can make some changes or modifications to equivalent embodiments with equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any content that does not depart from the technical solution of the present invention shall be based on Technical Essence of the Present Invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A film-tearing mechanism for molecular testing, characterized in that it is used to remove the sealing film from an extraction disk, and a flange protrudes from the outer ring surface of the top of the extraction disk; the sealing film is attached Attached to the top surface of the extraction plate, a folded circumferential portion of the sealing film is folded at the flange of the extraction plate, so that the folded circumferential portion is located below the flange of the extraction plate; the tear The membrane mechanism includes: A tear-off film base used to fix the extraction tray; A film-turning component, which is movably disposed on the tear-off film base toward the folded circumferential portion of the sealing film. The film-turning component has: A film-turning head protrudes from a top surface of the film-turning component and is used to abut a bottom surface of the flange of the extraction plate; when the film-turning component moves toward the reflexed peripheral portion of the sealing film , one side of the film-turning head pushes against the reflexed circumferential portion and flips the reflexed circumferential portion from the bottom of the flange to the outside of the flange; A tearing film clamp, which is movably and rotatably provided on the tearing film base; the tearing film clamping claw is used to clamp the reflexed peripheral portion turned to the outside of the flange, the tearing film clamping claw The movement and rotation are used to separate the sealing film from the extraction disk. 2. The film-tearing mechanism for molecular testing as claimed in claim 1, characterized in that the film-turning component includes: A film-turning body; the film-turning head can be slid up and down on the film-turning body; A lifting elastic member is provided on the film-turning body and pushes upward against the film-turning head. 3. The film tearing mechanism for molecular testing according to claim 1 or 2, characterized in that, The film tearing mechanism has A first linear module is provided on the tear film base and has a first sliding seat that can move along a first direction; A second linear module is provided on the first slide of the first linear module and has a second slide that can move along a second direction; the second direction is connected to the first slide. The first direction is non-parallel; A third linear module is provided on the second sliding seat of the second linear module and has a third sliding seat that can move up and down; The flip-film component is provided on the third sliding seat of the third linear module; The tearing film clamping claw is rotatably provided on the third slide seat of the third linear module. 4. A nucleic acid extraction device for molecular testing, characterized in that it is used to process multiple sampling containers and an extraction tray; each sampling container has a body and an upper cover, and the body has a detection container. The upper cover seals the specimen in the body; each extraction disk has a plurality of extraction grooves and a sealing film, the sealing film is attached to the top surface of the extraction disk and seals the extraction groove; the nucleic acid The extraction device contains: A base, and a film tearing mechanism, a cover mechanism, a pipetting mechanism, an extraction plate transfer mechanism and a nucleic acid extraction module provided on the base; wherein The film tearing mechanism is used to remove the sealing film from the extraction plate. A flange protrudes from the outer ring surface of the top of the extraction plate; a folded peripheral portion of the sealing film is on the flange of the extraction plate. The film tearing mechanism includes: A tear-off film base, which is located on the base and used to fix the extraction tray; A film-turning component, which is movably disposed on the tear-off film base toward the folded circumferential portion of the sealing film. The film-turning component has: A film-turning head protrudes from a top surface of the film-turning component and is used to abut a bottom surface of the flange of the extraction plate; when the film-turning component moves toward the reflexed peripheral portion of the sealing film , one side of the film-turning head pushes against the reflexed circumferential portion and flips the reflexed circumferential portion from the bottom of the flange to the outside of the flange; A tearing film clamp, which is movably and rotatably provided on the tearing film base; the tearing film clamping claw is used to clamp the reflexed peripheral portion turned to the outside of the flange, the tearing film clamping claw The movement and rotation are used to separate the sealing film from the extraction plate; The upper cover mechanism is used to separate the upper cover of each sampling container from the main body; The pipetting mechanism contains At least one pipette; each of the at least one pipette is used to suck the specimen in one of the sampling containers and inject the sucked specimen into one of the extraction tanks of the extraction tray; The extraction disk transfer mechanism is used to move the extraction disk with the specimen injected into the extraction tank into the nucleic acid extraction module. 5. The nucleic acid extraction device for molecular testing according to claim 4, wherein the upper cover mechanism includes: a fixed base located on the base; A rotary table that is rotatable on the fixed base with a rotation axis; At least one body clamp is provided on the rotating table, and each of the at least one body clamp is used to clamp one of the sampling containers; A cap loosening assembly, which includes at least one cap loosening clamp, the at least one cap loosening clamp is used to clamp the upper cap of the at least one sampling container on the at least one body clamp and unscrew the upper cap; A cover-moving assembly, which includes at least one cover-moving clamp, the at least one cover-moving clamp is used to clamp the upper cover of at least one sampling container on the at least one body clamp, and can unscrew the upper cover of the sampling container. The upper cover moves to one side of the body of the sampling container; A cover closing assembly, which includes at least one cover closing clamp, the at least one cover closing clamp is used to clamp the upper cover of the at least one sampling container on the at least one body clamp and tighten the upper cover; Wherein, the cap loosening assembly, the cap moving assembly and the cap closing assembly are provided on the fixed base and above the rotating table and are spaced around the rotation axis; the rotation of the rotating table causes the at least one body clamp to clamp The at least one inspection container corresponds to the at least one cap loosening clamp, the at least one cap moving clamp and the at least one cap closing clamp in sequence. 6. The nucleic acid extraction device for molecular testing according to claim 5, characterized in that, The loose cover component of the upper cover mechanism includes: A loose-cover linear module is provided on the fixed base and has a cover-opening sliding seat that can move up and down; At least one loose cover motor, which is located on the cover opening sliding seat; The at least one cap loosening clamp is provided on the cap loosening sliding seat of the cap loosening linear module and is connected to the spindle of the at least one cap loosening motor; Wherein, the at least one cap loosening motor can drive the at least one cap loosening clamping claw to rotate, thereby unscrewing the upper cover clamped by the cap loosening clamping claw. 7. The nucleic acid extraction device for molecular testing according to claim 5 or 6, wherein the cover moving assembly of the upper cover mechanism includes: A first cover-moving actuator, which is provided on the fixed base and has a first cover-moving actuating block, which is movable relative to the fixed base; A second cover-moving actuator is provided on the first cover-moving actuating block of the first cover-moving actuator, and has a second cover-moving actuating block. The second cover-moving actuating block can Move up and down; the moving direction of the first cover-moving actuating block is not parallel to the moving direction of the second cover-moving actuating block; The at least one cover-moving clamping claw is provided on the second cover-moving actuating block of the second cover-moving actuator. 8. The nucleic acid extraction device for molecular testing according to claim 5 or 6, wherein the unprocessed sampling container is placed on a sorting area of the base; The nucleic acid extraction device further has a container transfer mechanism, which is located on the base; the container transfer mechanism has a container clamp, and the container clamp can move to the arrangement area of the base and clamp the container located in the arrangement area. One of the sampling containers; the container clamp can move to a position corresponding to the at least one body clamp of the upper cover mechanism. 9. A nucleic acid extraction method for molecular testing, characterized in that it includes the following steps: Prepare the extraction plate and specimen: prepare an extraction plate, with a flange protruding from the outer ring surface of the top of the extraction plate, a sealing film attached to the top surface of the extraction plate and a folded circumferential portion of the sealing film at The flange is folded so that the folded peripheral portion is located below the flange of the extraction plate; a film-turning head of a film tearing mechanism abuts a bottom surface of the flange of the extraction plate, and at the same time, the turning head The film head moves toward the folded circumferential portion of the sealing film so that the folded circumferential portion is flipped from below the flange to the outside of the flange; a film tearing claw clamps the film that is flipped to the outside of the flange. The folded circumferential portion is then rotated and moved by the tearing claw to separate the sealing film from the extraction plate; an upper cover mechanism connects an upper cover of at least one of the plurality of sampling containers to the The main body of the sampling container is separated; Dispensing and extraction: Each pipette of a pipetting mechanism sucks the specimen in one of the plurality of sampling containers, and injects the sucked specimen into multiple containers on the extraction plate. into one of the extraction tanks; then the cover mechanism and the pipetting mechanism continue to inject the specimens in the remaining sampling containers into the remaining extraction tanks on the extraction plate; An extraction disk transfer mechanism moves the extraction disk with the specimen injected into the extraction tank into a nucleic acid extraction module. 10. The nucleic acid extraction method for molecular testing according to claim 9, wherein during the dispensing and extraction steps, each of the at least one pipette of the pipetting mechanism absorbs a plurality of sampling containers. After removing the specimen in one of the sampling containers, the upper cover mechanism combines the upper cover of the sampling container to the body and seals the remaining specimens in the sampling container.