A PCR testing apparatus
By designing a sliding tube frame and clamping plate structure in the PCR testing device, the problem of cumbersome and inefficient tube transfer in PCR testing equipment is solved, achieving rapid and efficient tube transfer and avoiding contamination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WESTERN INTELLIGENT INSPECTION (CHONGQING) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-29
AI Technical Summary
Existing PCR testing equipment is cumbersome, inefficient, and time-consuming when transferring test tubes.
Design a PCR testing device, including a test tube frame that can be stored above the sample slot of the PCR instrument body. The test tube frame has multiple placement slots, and the placement slots are equipped with clamping components, including a first clamping plate and a second clamping plate. The clamping plates have arc-shaped grooves on opposite sides, which cooperate to form a circular hole for placing PCR tubes. The clamping plates can slide upward to achieve rapid transfer.
It improves the efficiency of test tube transfer, avoids accidental leakage and contamination of the sample holder during PCR tube transfer, and simplifies the operation process.
Smart Images
Figure CN224299236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instruments, specifically to a PCR testing device. Background Technology
[0002] PCR testing equipment is a key device that enables rapid in vitro amplification of DNA through precise temperature control. It is mainly used in clinical diagnosis, genetic disease screening, forensic DNA identification, scientific gene cloning, transgenic detection, and paleontological DNA analysis. Its main structure includes a temperature control module, a heating cap, a microprocessor control system, a touch screen or button operation panel, and sample slots adapted to different sizes of PCR tubes. In use, the DNA template, primers, Taq enzyme, and other detection materials are first loaded into the PCR tube, and then placed in the instrument for detection.
[0003] Typically, when injecting the raw materials to be tested into PCR tubes, in order to avoid contaminating the sample well, the PCR tubes are first placed on an additional test tube rack, and after preparation, the PCR tubes are transferred to the sample well one by one for testing. However, when there are many samples to be tested, the cumbersome and inefficient nature of transferring individual test tubes one by one is significantly amplified, which is quite time-consuming. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a PCR testing device to solve the problems of cumbersome, inefficient and time-consuming transfer of test tubes in existing PCR testing.
[0005] To achieve the above objectives, this utility model provides a PCR testing device, including a PCR instrument body and a test tube frame that can be housed above the sample slot of the PCR instrument body. The test tube frame has multiple placement slots, and each of the multiple placement slots has a clamping member. The clamping member includes a first clamping plate and a second clamping plate. Each of the first clamping plate and the second clamping plate has multiple arc-shaped grooves on opposite sides. When the first clamping plate and the second clamping plate are combined, the opposite arc-shaped grooves can be used to place PCR tubes. Both the first clamping plate and the second clamping plate can slide upwards.
[0006] The principle and beneficial effects of the technical solution are as follows: The PCR instrument body is a common PCR instrument, model: WX-PCR16D; it includes a temperature control module, a heating cover, a microprocessor control system, a touch screen, and a sample tray. The test tube frame can be placed between the sample tray and the heating cover and removed during testing. The placement slot is used to place the first clamping plate and the second clamping plate. Each of the two plates has an arc-shaped groove on its opposite side. The arc-shaped grooves of the two plates cooperate to form a circular hole for placing PCR tubes. Multiple placement slots hold multiple sets of the first clamping plate and the second clamping plate, forming a test tube tray structure that can hold multiple sets of the first clamping plate and the second clamping plate. A large number of PCR tubes are used. During use, the tube frame is removed, and multiple PCR tubes are placed on the arc-shaped grooves of the first and second clamping plates. The sample to be tested is then prepared and injected. Removing the tube frame avoids accidental leakage that could contaminate the sample slots of the PCR instrument. After preparation, the first and second clamping plates are held simultaneously and slid upwards, then placed on the sample slots to allow the PCR tubes to fall into them. The first and second clamping plates are then removed from both sides, thus achieving rapid transfer of a row of PCR tubes and improving tube transfer efficiency.
[0007] In a preferred embodiment of this utility model, four support legs are fixed at the bottom of the test tube frame, and four storage slots corresponding to the support legs are provided on the PCR body.
[0008] Beneficial effects: The support legs located below the test tube frame increase the distance between the upper surfaces of the first and second clamping plates and the tabletop, facilitating the placement of the lower end of the PCR tubes; the storage slot is used to place the support legs, reducing the height of the test tube frame when placed in the PCR instrument body, making it easier to store.
[0009] In a preferred embodiment of the present invention, both ends of the first clamping plate and the second clamping plate are provided with extension plates, which extend out of the placement groove and are used to be placed in the placement groove; the thickness of the extension plate is less than the thickness of the first clamping plate and the second clamping plate.
[0010] Beneficial effects: The extension plate can be placed in the placement slot to provide support for the first clamping plate or the second clamping plate, and the part extending out of the placement slot can also be used to bear force, making it easy to slide upwards; the thickness of the extension plate is less than the thickness of the first clamping plate and the second clamping plate, so the width of the placement slot for placing two extension plates is less than the sum of the thicknesses of the first clamping plate and the second clamping plate, thereby allowing multiple placement slots to be spaced apart, allowing the first clamping plate and the second clamping plate to be placed in pairs, making it easy to slide upwards.
[0011] In a preferred embodiment of this utility model, the first clamping plate and the second clamping plate are arranged in a spaced-apart combination, and the central angle subtended by the arc of the arc groove is between 60° and 150°; a spacer block is fixed in the placement groove.
[0012] Beneficial effects: The first and second clamping plates are spaced apart, meaning there is a certain distance between them, which saves space and reduces the thickness of the first and second clamping plates; the central angle of the arc-shaped groove is between 60° and 150°, and the two arc-shaped grooves can effectively support the placement of PCR tubes and further reduce the thickness of the first and second clamping plates, so that when multiple rows of PCR tubes are placed, the first or second clamping plate located between two rows of PCR tubes can be easily removed; the spacer block is used to fill the gap between the first and second clamping plates, so that the arc-shaped grooves of the two plates can fit together to form a circular hole.
[0013] In a preferred embodiment of this utility model, the test tube frame is provided with lugs on both sides.
[0014] Beneficial effect: The tabs on both sides facilitate the removal of the entire test tube frame from the PCR instrument body.
[0015] In a preferred embodiment of this utility model, a limiting plate is rotatably provided above the side of the test tube frame near the placement slot, a magnetic block is fixed below one side of the limiting plate, and a magnet is fixed in the test tube frame.
[0016] Beneficial effects: The limiting plate is attached to the magnet of the test tube frame by the magnetic block, which can block the placement slot on one side, so that the first clamping plate and the second clamping plate will not fall out easily. When it is necessary to transfer PCR tubes, the limiting plate can be rotated to open. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the PCR testing device of this utility model.
[0019] Figure 2 This is a schematic diagram of the structure of the PCR instrument body described in the embodiment of the PCR testing equipment of this utility model.
[0020] Figure 3 This is a schematic diagram of the structure of the PCR instrument body hidden in an embodiment of the PCR testing equipment of this utility model.
[0021] Figure 4 The top view of the PCR instrument body is hidden in the embodiment of the PCR testing equipment of this utility model.
[0022] The reference numerals in the accompanying drawings are as follows: 1 PCR instrument body, 2 test tube frame, 21 placement slot, 3 first clamping plate, 4 second clamping plate, 5 arc-shaped slot, 6 support leg, 7 storage slot, 8 extension plate, 9 spacer block, 10 support ear, 11 limiting plate, 12 magnetic block, 13 magnet. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.
[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] As attached Figure 1 and Figure 2As shown, this utility model provides a PCR testing device: including a PCR instrument body 1 and a test tube frame 2 disposed above the sample slot of the PCR instrument body 1. The PCR instrument body 1 is a common PCR instrument, including a temperature control module, a heating cap, a microprocessor control system, a touch screen, and a sample slot. Four support legs 6 are fixed below the test tube frame 2, and the PCR instrument body is provided with four storage slots 7 corresponding to the support legs 6. The support legs 6 can increase the distance between the upper surface of the test tube frame 2 and the table, making it easier to place the lower end of the PCR tube. The test tube frame 2 can be placed between the sample slot and the heating cap, and the support legs 6 are placed in the storage slots 7, reducing the height of the test tube frame 2 for easy storage.
[0028] As attached Figure 3 As shown, in this embodiment, the test tube frame 2 is provided with lugs 10 on both sides, which are used to facilitate the removal of the entire test tube frame 2 from the PCR instrument body 1; the test tube frame 2 is provided with multiple placement slots 21, the number of which is the same as the number of sample slots in the PCR instrument body 1; each of the multiple placement slots 21 is provided with a clamping component, which includes a first clamping plate 3 and a second clamping plate 4; each of the first clamping plate 3 and the second clamping plate 4 has multiple arc-shaped grooves 5 on opposite sides, the number of which is the same as the number of sample slots; after the first clamping plate 3 and the second clamping plate 4 are combined, the opposite arc-shaped grooves 5 can be used to place PCR tubes; Both the first clamping plate 3 and the second clamping plate 4 can slide upwards. In use, the test tube frame 2 is removed through the lugs 10 on both sides, and multiple PCR tubes are placed on the multiple arc-shaped grooves 5 of the first clamping plate 3 and the second clamping plate 4. Then, the sample to be tested is prepared and injected. Removing the test tube frame 2 can avoid accidental leakage and contamination of the sample slot of the PCR instrument body 1. After preparation, the first clamping plate 3 and the second clamping plate 4 are held at the same time and slid upwards. Then, they are placed on the sample slot, allowing the PCR tubes to fall into the sample slot. The first clamping plate 3 and the second clamping plate 4 are then removed from both sides, thereby achieving the effect of rapid transfer of a row of PCR tubes and improving the efficiency of test tube transfer.
[0029] As attached Figure 3 and Figure 4As shown, in this embodiment, both ends of the first clamping plate 3 and the second clamping plate 4 are provided with extension plates 8. The extension plates 8 extend out of the placement groove 21 and are used to place in the placement groove 21 to provide support for the first clamping plate 3 or the second clamping plate 4. At the same time, the part extending out of the placement groove 21 can also be used to bear force, making it easy to slide upward. The thickness of the extension plate 8 is less than the thickness of the first clamping plate 3 and the second clamping plate 4. Therefore, the width of the placement groove 21 for placing two extension plates 8 is less than the sum of the thicknesses of the first clamping plate 3 and the second clamping plate 4. This allows multiple placement grooves 21 to be spaced apart, so that the first clamping plate 3 and the second clamping plate 4 can be placed in pairs, making it easy to slide upward.
[0030] As attached Figure 4 As shown, in this embodiment, the first clamping plate 3 and the second clamping plate 4 are spaced apart, i.e., there is a certain distance between them. The space saved can reduce the thickness of the first clamping plate 3 and the second clamping plate 4. A spacer block 9 is provided between the first clamping plate 3 and the second clamping plate 4. The spacer block 9 is fixed to the bottom wall of the placement groove 21. The spacer block 9 is used to fill the gap between the first clamping plate 3 and the second clamping plate 4, so that the arc-shaped grooves 5 of the two plates can cooperate to form a circular hole. The central angle of the arc of the arc-shaped groove 5 is between 60° and 150°. After the two arc-shaped grooves 5 cooperate, they can effectively support the placement of PCR tubes and further reduce the thickness of the first clamping plate 3 and the second clamping plate 4. This allows the first clamping plate 3 or the second clamping plate 4 located between two rows of PCR tubes to be easily removed when multiple rows of PCR tubes are placed.
[0031] As attached Figure 3 As shown, in this embodiment, a limiting plate 11 is rotatably disposed above the side of the test tube frame 2 near the placement slot 21. A magnetic block 12 is fixed below one side of the limiting plate 11. A magnet 13 is fixed in the test tube frame 2, and the magnet 13 corresponds to the magnetic block 12. The limiting plate 11 can be attracted to the magnet 13 of the test tube frame 2 by the magnetic block 12, blocking one side of the placement slot 21, thereby preventing the first clamping plate 3 and the second clamping plate 4 from easily falling out. When it is necessary to transfer PCR tubes, the limiting plate 11 can be rotated open.
[0032] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. Typical known structures and common knowledge techniques in the preferred embodiments have not been described in detail here. Those skilled in the art can improve and implement the technical solution of this utility model based on the inspiration given in these embodiments and their own capabilities. Some typical known structures, known methods or common knowledge techniques should not be obstacles for those skilled in the art to implement this application.
[0033] The scope of protection claimed in this application shall be determined by the contents of its claims. The contents of the utility model description, specific embodiments, and drawings are used to interpret the claims.
[0034] Within the scope of the technical concept of this application, several modifications can be made to the specific implementation of this application, and these modified implementations should also be considered within the protection scope of this application.
Claims
1. A PCR testing device, comprising a PCR instrument body, characterized in that: It also includes a test tube frame that can be stored above the sample slot of the PCR instrument body. The test tube frame has multiple placement slots, and each of the multiple placement slots has a clamping member. The clamping member includes a first clamping plate and a second clamping plate. Each of the first clamping plate and the second clamping plate has multiple arc-shaped grooves on opposite sides. When the first clamping plate and the second clamping plate are combined, the opposite arc-shaped grooves can be used to place PCR tubes. Both the first clamping plate and the second clamping plate can slide upwards.
2. The PCR testing device according to claim 1, characterized in that: The test tube frame is fixed with four legs at the bottom, and the PCR instrument body is provided with four storage slots corresponding to the legs.
3. The PCR testing device according to claim 1, characterized in that: Both ends of the first clamping plate and the second clamping plate are provided with extension plates, which extend out of the placement groove and are used to place the plate into the placement groove; the thickness of the extension plate is less than the thickness of the first clamping plate and the second clamping plate.
4. The PCR testing device according to claim 1, characterized in that: The first clamping plate and the second clamping plate are arranged in a spaced-apart combination, and the central angle subtended by the arc of the arc groove is between 60° and 150°; a spacer block is fixed in the placement groove.
5. The PCR testing device according to claim 1, characterized in that: The test tube frame has lugs on both sides.
6. The PCR testing device according to claim 1, characterized in that: A limiting plate is rotatably installed above the test tube frame near the placement slot, and a magnetic block is fixed below one side of the limiting plate. A magnet is fixed inside the test tube frame.