A centrifugation reagent disc

Abstract

The application belongs to the technical field of medical apparatuses, and discloses a centrifugal reagent disc which comprises a disc body and a cover plate, the disc body is provided with a blood separation cavity and a plurality of reaction cavities, the blood separation cavity and the plurality of reaction cavities are located at the edge of the disc body, and the blood separation cavity and the plurality of reaction cavities are arranged at intervals along the circumference of the disc body, the cover plate can rotate relative to the disc body, so that the cover plate has a first position for opening the blood separation cavity and the reaction cavities and a second position for closing the blood separation cavity and the reaction cavities, then the sealing or opening of the blood separation cavity and the reaction cavities can be realized by rotating the cover plate, compared with the scheme of using a sealing film in the prior art, the situation that the sealing film needs to be punctured when the blood separation cavity or the reaction cavities are opened is avoided, so that the situation that the blood separation cavity or the reaction cavities are resealed by using the sealing film is avoided, the use cost of the centrifugal reagent disc is reduced, and the waste of resources is also avoided.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, specifically relating to a centrifuge reagent tray. Background Technology

[0002] A sample analyzer is a medical device that integrates sample processing, separation, and detection functions. It is widely used in industries such as biochemical analysis and clinical testing. The centrifuge reagent tray is an important component of the sample analyzer. It can rotate under the drive of the sample analyzer's drive device to achieve functions such as centrifugation and reagent mixing of samples.

[0003] In related technologies, such as the Chinese utility model patent with publication number CN207571039U, a centrifuge reagent tray is disclosed. This tray includes a blood separation chamber and multiple reaction chambers on its upper part. The blood separation chamber and the multiple reaction chambers are sealed with membranes, and a driving device can drive the tray to rotate. However, when extracting the centrifuged sample and adding the extracted sample to the reaction chamber, a suction device is needed to puncture the membrane. This causes the sample in the reaction chamber or blood separation chamber to leak out through the puncture during tray rotation, affecting the remaining sample volume. To ensure the remaining sample volume, the reaction chamber or blood separation chamber needs to be resealed, increasing the cost of using the centrifuge reagent tray. Therefore, how to achieve sealing of the blood separation chamber and reaction chamber and reduce the cost of using the centrifuge reagent tray has become an urgent technical problem to be solved. Utility Model Content

[0004] This application provides a centrifuge reagent tray to achieve sealing of the blood separation chamber and reaction chamber, and to reduce the cost of using the centrifuge reagent tray.

[0005] The technical solution adopted in this application is as follows:

[0006] A centrifuge reagent tray includes a tray body and a cover plate. The tray body is provided with a blood separation chamber and multiple reaction chambers. The blood separation chamber and multiple reaction chambers are all located at the edge of the tray body and are spaced apart along the circumference of the tray body. The cover plate is rotatable relative to the tray body so that the cover plate has a first position for opening the blood separation chamber and the reaction chambers and a second position for closing the blood separation chamber and the reaction chambers.

[0007] By adopting the above technical solution, when adding a sample to the blood separation chamber, the cover is first rotated from the second position to the first position, thereby opening the blood separation chamber. The sample is then added to the blood separation chamber. The cover is then rotated in the opposite direction, from the first position to the second position, thereby closing the blood separation chamber. The centrifuge reagent disc is then driven by the driving device of the sample analyzer to rotate, and the sample is separated in the blood separation chamber. The cover is then rotated again, from the second position to the first position, opening the blood separation chamber. The separated sample is then extracted and added to the reaction chamber. The cover is then rotated again to close both the blood separation chamber and the reaction chamber.

[0008] This application incorporates a rotatable cover plate, allowing for the sealing or opening of the blood separation chamber and reaction chamber by rotating the cover plate. Compared to existing technologies that use sealing membranes, this avoids the need to puncture the sealing membrane when opening the blood separation chamber or reaction chamber, thus preventing the need to reseal the blood separation chamber or reaction chamber with a sealing membrane. This reduces the cost of using the centrifuge reagent tray and avoids resource waste.

[0009] Optionally, the cover plate is provided with a first connecting port corresponding to the blood separation chamber and a plurality of second connecting ports corresponding to the plurality of reaction chambers. When the cover plate is in the first position, the first connecting port is opposite to the blood separation chamber and each of the second connecting ports is opposite to its corresponding reaction chamber. When the cover plate is in the second position, the first connecting port is misaligned with the blood separation chamber and each of the second connecting ports is misaligned with its corresponding reaction chamber.

[0010] By adopting the above technical solution, since the cover plate is provided with a first connecting port and a second connecting port, and when the cover plate is in the first position, the first connecting port is opposite to the blood separation chamber and each second connecting port is opposite to its corresponding reaction chamber. When the cover plate is in the second position, the first connecting port is misaligned with the blood separation chamber and each second connecting port is misaligned with its corresponding reaction chamber, thereby achieving simultaneous sealing and opening of the blood separation chamber and multiple reaction chambers, so as to improve the user's operational convenience.

[0011] Optionally, the cover plate is provided with multiple covers, each corresponding to a blood separation chamber and a plurality of reaction chambers. The centrifuge reagent tray also includes connecting arms that correspond to the multiple covers. One end of each connecting arm is rotatably connected to the tray body, and the other end of each connecting arm is connected to its corresponding cover plate. Each connecting arm can apply an elastic force toward the tray body to its corresponding cover plate.

[0012] By adopting the above technical solution, since the cover plate is provided with multiple covers corresponding to the blood separation chamber and multiple reaction chambers, it is possible to individually seal or open the blood separation chamber and each reaction chamber, thereby increasing the flexibility of the centrifuge reagent tray. Since one end of the connecting arm is rotatably connected to the tray body and the other end of the connecting arm is connected to the corresponding cover plate, the cover plate can rotate relative to the tray body, thereby sealing or opening the blood separation chamber or reaction chamber by rotating the cover plate. Furthermore, since the connecting arm can apply an elastic force towards the tray body to the cover plate, it can increase the clamping force between the cover plate and the tray body. On the one hand, it can increase the sealing effect of the cover plate on the blood separation chamber or reaction chamber, and on the other hand, it can increase the friction between the cover plate and the tray body, thereby increasing the stability of the cover plate in the second position, and further ensuring the sealing effect of the cover plate on the blood separation chamber or reaction chamber.

[0013] Optionally, the connecting arm includes a connecting section and a pressure-applying section. The connecting section is rotatably connected to the disc body, and the pressure-applying section protrudes in a direction away from the disc body and is connected to the cover plate.

[0014] By adopting the above technical solution, since the pressure section protrudes in the direction away from the disc and is connected to the cover plate, the pressure section can apply an elastic force towards the disc plate to the cover plate, thereby increasing the friction between the cover plate and the disc plate, thus increasing the sealing effect of the cover plate on the blood separation chamber or reaction chamber, and also increasing the stability of the cover plate when it is in the second position.

[0015] Optionally, the connecting arm further includes a support section located at the end of the pressure section away from the connecting section, the support section being arranged parallel to the end face of the cover plate away from the disc body, and the support section being connected to the cover plate.

[0016] By adopting the above technical solution, since the support section is set parallel to the end face of the cover plate away from the disc body and the support section is connected to the cover plate, the contact area between the connecting arm and the cover plate can be increased, thereby increasing the connection stability between the connecting arm and the cover plate. At the same time, the pressure effect of the connecting arm on the cover plate can also be increased, thereby further increasing the sealing effect of the cover plate on the blood separation chamber or reaction chamber.

[0017] Optionally, the support section is provided with a connecting groove, and the cover plate is provided with a connecting block extending into the connecting groove.

[0018] By adopting the above technical solution, since the support section is provided with a connecting groove and the cover plate is provided with a connecting block extending into the connecting groove, the connection between the connecting arm and the cover plate is realized. At the same time, the cover plate and the connecting arm can be separated to facilitate the replacement or cleaning of the cover plate, thereby improving the user experience.

[0019] Optionally, the support section is located at the bottom of the pressure section and extends from the pressure section toward the connecting section, the connecting groove has a through-hole located at one end of the support section near the connecting section, and the connecting block is provided with a stop edge located at the top of the support section.

[0020] By adopting the above technical solution, since the connecting groove has a passage located at one end of the support section near the connecting section, when disassembling the cover plate, a pushing force towards the center of the disc can be applied to the cover plate first, causing the cover plate to move the connecting block towards the center of the disc, thereby allowing the connecting block to detach from the connecting groove through the passage, thus completing the disassembly of the cover plate. This process only requires applying a pushing force towards the center of the disc, thus reducing the difficulty of disassembling the cover plate. Simultaneously, it can prevent the cover plate from separating from the connecting arm under centrifugal force, ensuring the connection stability between the cover plate and the connecting arm. Furthermore, since the connecting block is equipped with a stop edge located at the top of the support section, the stop edge can cooperate with the stop of the support section to limit the cover plate, preventing separation when the connecting arm is pulled upwards, further increasing the connection stability between the cover plate and the connecting arm.

[0021] Optionally, the cover plate is provided with multiple sealing rings, each of which corresponds to a blood separation chamber and a reaction chamber, and all of the sealing rings are located between the cover plate and the disc body. When the cover plate is in the second position, each sealing ring surrounds its corresponding blood separation chamber or reaction chamber.

[0022] By adopting the above technical solution, since the sealing ring is located between the cover plate and the disc, and when the cover plate is in the second position, each sealing ring surrounds its corresponding blood separation chamber or reaction chamber. This can increase the sealing effect of the cover plate on the blood separation chamber or reaction chamber, and increase the friction between the cover plate and the disc, thereby further increasing the stability of the cover plate when it is in the second position, and further increasing the sealing effect on the blood separation chamber or reaction chamber.

[0023] Optionally, the cover plate is provided with a plurality of receiving grooves, and the plurality of receiving grooves are provided one-to-one with a plurality of sealing rings, and at least a portion of each sealing ring is located in its corresponding receiving groove.

[0024] By adopting the above technical solution, since the receiving groove and the sealing ring are set one-to-one, and at least part of each sealing ring is located in its corresponding receiving groove, the situation that the sealing ring cannot follow the movement of the cover plate when the cover plate and the disc rotate relative to each other is avoided, thus preventing the sealing ring from detaching from the cover plate and the disc, thereby increasing the connection stability between the sealing ring and the cover plate. On the other hand, it can also increase the contact area between the sealing ring and the cover plate, so as to further increase the sealing effect of the cover plate on the blood separation chamber or reaction chamber.

[0025] Optionally, the disc body has a central region and an edge region surrounding the central region. The blood separation chamber and the plurality of reaction chambers are all located in the edge region. The side of the blood separation chamber and the plurality of reaction chambers away from the central region has a guide wall, and the guide wall is inclined downward in the direction close to the central region.

[0026] By adopting the above technical solution, since the guide wall is inclined downward along the direction close to the central region, when the sample in the blood separation chamber or reaction chamber moves away from the central region under the action of centrifugal force, the guide wall can guide the sample so that the sample returns to the blood separation chamber or reaction chamber under the action of the guide wall, thereby avoiding the situation where the sample flows out of the blood separation chamber or reaction chamber.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The centrifuge reagent tray of this application includes a tray body and a cover plate. The tray body is provided with a blood separation chamber and multiple reaction chambers. The blood separation chamber and multiple reaction chambers are all located at the edge of the tray body and are spaced apart along the circumference of the tray body. The cover plate can rotate relative to the tray body so that the cover plate has a first position for opening the blood separation chamber and the reaction chamber and a second position for closing the blood separation chamber and the reaction chamber. Thus, by rotating the cover plate, the blood separation chamber and the reaction chamber can be sealed or opened. At the same time, compared with the prior art using a sealing film, it avoids the need to puncture the sealing film when opening the blood separation chamber or the reaction chamber, thereby avoiding the need to reseal the blood separation chamber or the reaction chamber using a sealing film, and thus reducing the use cost of the centrifuge reagent tray.

[0029] 2. In this application, the cover plate is provided with a first connecting port corresponding to the blood separation chamber and multiple second connecting ports corresponding to multiple reaction chambers. When the cover plate is in the first position, the first connecting port is opposite to the blood separation chamber and each of the second connecting ports is opposite to its corresponding reaction chamber. When the cover plate is in the second position, the first connecting port is misaligned with the blood separation chamber and each of the second connecting ports is misaligned with its corresponding reaction chamber, thereby achieving simultaneous sealing and opening of the blood separation chamber and multiple reaction chambers, thereby improving the user's operational convenience.

[0030] 3. The cover plate in this application is provided with multiple covers, each corresponding to a blood separation chamber and multiple reaction chambers. The centrifuge reagent tray also includes connecting arms that correspond to multiple covers. One end of each connecting arm is rotatably connected to the tray body, and the other end of each connecting arm is connected to its corresponding cover plate. Each connecting arm can apply an elastic force toward the tray body to its corresponding cover plate. This can increase the sealing effect of the cover plate on the blood separation chamber or reaction chamber, and increase the friction between the cover plate and the tray body to increase the stability of the cover plate when it is in the second position, thereby further ensuring the sealing effect of the cover plate on the blood separation chamber or reaction chamber. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of the centrifuge reagent tray described in one embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the structure of the centrifuge reagent tray described in another embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the connecting arm in one embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the connecting arm from another perspective in one embodiment of this application;

[0036] Figure 5 This is a cross-sectional view of the connecting arm described in one embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the structure of the cover plate described in another embodiment of this application;

[0038] Figure 7 This is a cross-sectional view of the cover plate described in another embodiment of this application;

[0039] Figure 8 This is a cross-sectional view of the disk body described in one embodiment of this application.

[0040] Figure label:

[0041] 1. Disc body; 11. Blood separation chamber; 111. Guide wall; 12. Reaction chamber; 2. Cover plate; 21. First connecting port; 22. Second connecting port; 221. Connecting block; 222. Stop edge; 23. Receiving groove; 231. Sealing ring; 3. Connecting arm; 31. Connecting section; 32. Pressurizing section; 33. Supporting section; 331. Connecting groove. Detailed Implementation

[0042] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0044] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0047] Reference Figures 1 to 8 A centrifuge reagent tray is disclosed, which includes a tray body 1 and a cover plate 2. The tray body 1 is provided with a blood separation chamber 11 and a plurality of reaction chambers 12. The blood separation chamber 11 and the plurality of reaction chambers 12 are all located at the edge of the tray body 1 and are spaced apart along the circumference of the tray body 1. The cover plate 2 can rotate relative to the tray body 1 so that the cover plate 2 has a first position for opening the blood separation chamber 11 and the reaction chambers 12 and a second position for closing the blood separation chamber 11 and the reaction chambers 12.

[0048] Understandably, the cover plate 2 can switch between the first and second positions by rotating.

[0049] When adding a sample to the blood separation chamber 11, first rotate the cover plate 2 from the second position to the first position, thereby opening the blood separation chamber 11. Then, add the sample into the blood separation chamber 11. Next, rotate the cover plate 2 in the opposite direction, from the first position to the second position, thereby closing the blood separation chamber 11. Then, use the driving device of the sample analyzer to drive the centrifuge reagent tray to rotate, and the sample is separated in the blood separation chamber 11. Then, rotate the cover plate 2 again, from the second position to the first position, opening the blood separation chamber 11. Then, extract the separated sample and add it to the reaction chamber 12. Finally, rotate the cover plate 2 to close the blood separation chamber 11 and the reaction chamber 12.

[0050] In this application, a cover plate 2 is provided and is made rotatable. By rotating the cover plate 2, the blood separation chamber 11 and the reaction chamber 12 can be sealed or opened. Compared with the prior art using a sealing membrane, this avoids the need to puncture the sealing membrane when opening the blood separation chamber 11 or the reaction chamber 12, thus avoiding the need to reseal the blood separation chamber or the reaction chamber 12 with a sealing membrane. This reduces the cost of using the centrifuge reagent tray and avoids waste of resources.

[0051] This application does not impose specific limitations on the structure of the cover plate 2, which can adopt any of the following embodiments:

[0052] Implementation Method 1, in this implementation method, refer to Figure 1 The cover plate 2 is provided with a first connecting port 21 corresponding to the blood separation chamber 11 and a plurality of second connecting ports 22 corresponding to the plurality of reaction chambers 12. When the cover plate 2 is in the first position, the first connecting port 21 is opposite to the blood separation chamber 11 and each second connecting port 22 is opposite to its corresponding reaction chamber 12. When the cover plate 2 is in the second position, the first connecting port 21 is misaligned with the blood separation chamber 11 and each second connecting port 22 is misaligned with its corresponding reaction chamber 12.

[0053] It is understood that the number of second connecting ports 22 is equal to the number of reaction chambers 12, and the second connecting ports 22 are set in a one-to-one correspondence with the reaction chambers 12; the cover plate 2 is an integral structure, the cover plate 2 is rotatably connected to the disk body 1, and the rotation axis of the cover plate 2 is collinear with the central axis of the disk body 1.

[0054] It should be noted that the above-mentioned "when the cover plate 2 is in the first position, the first connecting port 21 is opposite to the blood separation chamber 11 and each second connecting port 22 is opposite to its corresponding reaction chamber 12" means that when the cover plate 2 is in the first position, the first connecting port 21 is connected to the blood separation chamber 11 to open the blood separation chamber 11, and each second connecting port 22 is connected to its corresponding reaction chamber 12 to open the reaction chamber 12. The above-mentioned "when the cover plate 2 is in the second position, the first connecting port 21 is misaligned with the blood separation chamber 11 and each second connecting port 22 is misaligned with its corresponding reaction chamber 12" means that when the cover plate 2 is in the second position, the cover plate 2 blocks the openings of the blood separation chamber 11 and the multiple reaction chambers 12 to seal the blood separation chamber 11 and the multiple reaction chambers 12.

[0055] Because the cover plate 2 is provided with a first connecting port 21 and a second connecting port 22, and when the cover plate 2 is in the first position, the first connecting port 21 is opposite to the blood separation chamber 11 and each of the second connecting ports 22 is opposite to its corresponding reaction chamber 12. When the cover plate 2 is in the second position, the first connecting port 21 is misaligned with the blood separation chamber 11 and each of the second connecting ports 22 is misaligned with its corresponding reaction chamber 12, thereby achieving simultaneous sealing and opening of the blood separation chamber 11 and multiple reaction chambers 12, thereby improving the user's operational convenience.

[0056] Implementation Method Two: In this implementation method, refer to... Figures 2 to 7 The cover plate 2 is provided with multiple covers, which are respectively arranged in a blood separation chamber 11 and multiple reaction chambers 12. The centrifuge reagent tray also includes connecting arms 3 that are respectively arranged in a multiple cover plate 2. One end of each connecting arm 3 is rotatably connected to the tray body 1, and the other end of each connecting arm 3 is connected to its corresponding cover plate 2. Each connecting arm 3 can apply an elastic force toward the tray body 1 to its corresponding cover plate 2.

[0057] It is understandable that there are multiple cover plates 2, and the number of cover plates 2 is equal to the number of blood separation chambers 11 plus the number of reaction chambers 12. Each cover plate 2 is rotatably connected to the disc body 1 through its corresponding connecting arm 3.

[0058] It should be noted that each cover plate 2 has a first position and a second position. When the cover plate 2 corresponding to the blood separation chamber 11 is in the first position, it is located diagonally above the blood separation chamber 11, so that the cover plate 2 avoids the opening of the blood separation chamber 11. When the cover plate 2 corresponding to the blood separation chamber 11 is in the second position, it is located directly above the blood separation chamber 11, so that the cover plate 2 blocks the opening of the blood separation chamber 11, thereby sealing the blood separation chamber 11. When the cover plate 2 corresponding to the reaction chamber 12 is in the first position, it is located diagonally above the reaction chamber 12, so that the cover plate 2 avoids the opening of the reaction chamber 12. When the cover plate 2 corresponding to the reaction chamber 12 is in the second position, it is located directly above the reaction chamber 12, so that the cover plate 2 blocks the opening of the reaction chamber 12, thereby sealing the reaction chamber 12.

[0059] Because the cover plate 2 is provided with multiple covers, each corresponding to a blood separation chamber 11 and a reaction chamber 12, it enables the individual sealing or opening of each blood separation chamber 11 and each reaction chamber 12, thereby increasing the flexibility of the centrifuge reagent tray. Since one end of the connecting arm 3 is rotatably connected to the tray body 1 and the other end is connected to its corresponding cover plate 2, the cover plate 2 can rotate relative to the tray body 1, allowing the blood separation chamber 11 or reaction chamber 12 to be sealed or opened by rotating the cover plate 2. Furthermore, because the connecting arm 3 can apply an elastic force towards the tray body 1 to the cover plate 2, it increases the clamping force between the cover plate 2 and the tray body 1. This increases the sealing effect of the cover plate 2 on the blood separation chamber 11 or reaction chamber 12 and also increases the friction between the cover plate 2 and the tray body 1, thereby increasing the stability of the cover plate 2 in the second position and further ensuring the sealing effect of the cover plate 2 on the blood separation chamber 11 or reaction chamber 12.

[0060] This application does not specifically limit the structure of the connecting arm 3; preferably, refer to... Figures 3 to 5 The connecting arm 3 includes a connecting section 31 and a pressure section 32. The connecting section 31 is rotatably connected to the disc body 1, and the pressure section 32 protrudes in the direction away from the disc body 1 and is connected to the cover plate 2.

[0061] It is understandable that the pressure section 32 is arc-shaped, and the center of the arc of the pressure section 32 is located on the side of the pressure section 32 closer to the disc body 1. After the connecting arm 3 is installed on the disc body 1, the pressure section 32 is in an elastic deformation state so that the pressure section 32 can apply an elastic force toward the disc body 1 to the cover plate 2.

[0062] Since the pressure section 32 protrudes in the direction away from the disc body 1 and is connected to the cover plate 2, the pressure section 32 can be used to apply an elastic force to the cover plate 2 in the direction of the disc body 1 to increase the friction between the cover plate 2 and the disc body 1, thereby increasing the sealing effect of the cover plate 2 on the blood separation chamber 11 or the reaction chamber 12, and also increasing the stability of the cover plate 2 when it is in the second position.

[0063] Furthermore, refer to Figures 3 to 5 The connecting arm 3 also includes a support section 33 located at the end of the pressure section 32 away from the connecting section 31. The support section 33 is arranged parallel to the end face of the cover plate 2 away from the disc body 1, and the support section 33 is connected to the cover plate 2.

[0064] It is understandable that the end face of the cover plate 2 away from the disc body 1 is flat, and the end face of the cover plate 2 away from the disc body 1 is set parallel to the extension direction of the connecting section 31, and the support section 33 is set parallel to the connecting section 31.

[0065] Since the support section 33 is arranged parallel to the end face of the cover plate 2 away from the disc body 1, and the support section 33 is connected to the cover plate 2, the contact area between the connecting arm 3 and the cover plate 2 can be increased, thereby increasing the connection stability between the connecting arm 3 and the cover plate 2. At the same time, the pressure effect of the connecting arm 3 on the cover plate 2 can also be increased, thereby further increasing the sealing effect of the cover plate 2 on the blood separation chamber 11 or the reaction chamber 12.

[0066] This application does not specify the connection method between the cover plate 2 and the support section 33. Preferably, refer to... Figures 3 to 7 The support section 33 is provided with a connecting groove 331, and the cover plate 2 is provided with a connecting block 221 that extends into the connecting groove 331, thereby realizing the connection between the connecting arm 3 and the cover plate 2. At the same time, it can also separate the cover plate 2 from the connecting arm 3, so as to facilitate the replacement or cleaning of the cover plate 2, thereby improving the user experience.

[0067] Furthermore, refer to Figures 3 to 7 The support section 33 is located at the bottom of the pressure section 32 and extends from the pressure section 32 toward the direction close to the connecting section 31. The connecting groove 331 has a through-hole located at one end of the support section 33 near the connecting section 31. The connecting block 221 is provided with a stop edge 222, which is located at the top of the support section 33.

[0068] It is understood that the connecting groove 331 penetrates the support section 33 in the thickness direction of the support section 33, and the connecting groove 331 penetrates the end of the support section 33 near the connecting section 31 and forms a passage.

[0069] Since the connecting groove 331 has a passage located at one end of the support section 33 near the connecting section 31, when disassembling the cover plate 2, a pushing force towards the center of the disc body 1 can be applied to the cover plate 2 first, so that the cover plate 2 drives the connecting block 221 to move towards the center of the disc body 1, thereby allowing the connecting block 221 to detach from the connecting groove 331 through the passage, thus completing the disassembly of the cover plate 2. In this process, only a pushing force towards the center of the disc body 1 needs to be applied to the cover plate 2, thereby reducing the difficulty of disassembling the cover plate 2; at the same time, it can also prevent the cover plate 2 from separating from the connecting arm 3 under the action of centrifugal force, so as to ensure the connection stability between the cover plate 2 and the connecting arm 3.

[0070] Furthermore, since the connecting block 221 is provided with a stop edge 222, which is located at the top of the support section 33, the stop edge 222 and the stop of the support section 33 can cooperate to limit the cover plate 2, so as to prevent the cover plate 2 from separating from the connecting arm 3 when the connecting arm 3 is pulled upward, thereby further increasing the connection stability between the cover plate 2 and the connecting arm 3.

[0071] In other implementation examples, the cover plate 2 can also be fixed to the support section 33 by screws or adhesive.

[0072] In other embodiments, the connecting arm 3 may also be a straight arm structure.

[0073] This application does not specify the material for the connecting arm 3. Preferably, the connecting arm 3 is made of manganese steel to ensure that the connecting arm 3 can exert an elastic force on the cover plate 2, thereby ensuring the sealing effect of the cover plate 2 on the blood separation chamber 11 or the reaction chamber 12. In other embodiments, the connecting arm 3 can also be made of other materials such as plastic, as long as the connecting arm 3 can be elastic.

[0074] In a preferred embodiment, refer to Figure 6 and Figure 7 The cover plate 2 is provided with multiple sealing rings 231, which are respectively provided with blood separation chamber 11 and multiple reaction chambers 12. The multiple sealing rings 231 are all located between the cover plate 2 and the disc body 1. When the cover plate 2 is in the second position, each sealing ring 231 surrounds its corresponding blood separation chamber 11 or reaction chamber 12.

[0075] It is understandable that the number of sealing rings 231 is equal to the number of blood separation chambers 11 plus the number of reaction chambers 12.

[0076] It should be noted that, for the above-mentioned scheme in which the cover plate 2 is provided with the first connecting port 21 and the second connecting port 22, multiple sealing rings 231 are provided on the same cover plate 2. However, for the above-mentioned scheme in which the cover plate 2 is provided with multiple corresponding blood separation chamber 11 and reaction chamber 12, each cover plate 2 is provided with one sealing ring 231, that is, the sealing ring 231 is provided in a one-to-one correspondence with the cover plate 2.

[0077] Since the sealing ring 231 is located between the cover plate 2 and the disc body 1, and when the cover plate 2 is in the second position, each sealing ring 231 surrounds its corresponding blood separation chamber 11 or reaction chamber 12. This can increase the sealing effect of the cover plate 2 on the blood separation chamber 11 or reaction chamber 12, and increase the friction between the cover plate 2 and the disc body 1, thereby further increasing the stability of the cover plate 2 when it is in the second position, and further increasing the sealing effect on the blood separation chamber 11 or reaction chamber 12.

[0078] Furthermore, refer to Figure 7The cover plate 2 is provided with multiple receiving grooves 23, and the multiple receiving grooves 23 are respectively provided with multiple sealing rings 231. At least a part of each sealing ring 231 is located in its corresponding receiving groove 23. This avoids the situation where the sealing ring 231 cannot follow the movement of the cover plate 2 when the cover plate 2 and the disc 1 rotate relative to each other, thus preventing the sealing ring 231 from detaching from the cover plate 2 and the disc 1. This increases the connection stability between the sealing ring 231 and the cover plate 2. On the other hand, it can also increase the contact area between the sealing ring 231 and the cover plate 2, so as to further increase the sealing effect of the cover plate 2 on the blood separation chamber 11 or the reaction chamber 12.

[0079] It should be noted that, for the above-mentioned scheme in which the cover plate 2 is provided with a first connecting port 21 and a second connecting port 22, multiple receiving slots 23 are provided on the same cover plate 2, while for the above-mentioned scheme in which the cover plate 2 is provided with multiple blood separation chambers 11 and reaction chambers 12, each cover plate 2 is provided with a receiving slot 23.

[0080] In a preferred embodiment, refer to Figure 8 The disc body 1 has a central region and an edge region surrounding the central region. The blood separation chamber 11 and multiple reaction chambers 12 are located in the edge region. The side of the blood separation chamber 11 and multiple reaction chambers 12 away from the central region has a guide wall 111. The guide wall 111 is inclined downward in the direction close to the central region.

[0081] It is understood that the guide wall 111 in the blood separation chamber 11 is located at the top opening of the blood separation chamber 11, and the guide wall 111 in the reaction chamber 12 is located at the top opening of the reaction chamber 12.

[0082] Since the guide wall 111 is inclined downwards along the direction close to the central region, when the sample in the blood separation chamber 11 or reaction chamber 12 moves away from the central region under the action of centrifugal force, the guide wall 111 can guide the sample so that the sample returns to the blood separation chamber 11 or reaction chamber 12 under the action of the guide wall 111, so as to avoid the sample flowing out of the blood separation chamber 11 or reaction chamber 12.

[0083] Preferably, the guide wall 111 is an arc-shaped wall surface to increase the guiding effect of the guide wall 111 on the sample.

[0084] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0085] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0086] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A centrifuge reagent tray, characterized in that, The device includes a disc body (1) and a cover plate (2). The disc body (1) is provided with a blood separation chamber (11) and a plurality of reaction chambers (12). The blood separation chamber (11) and the plurality of reaction chambers (12) are located at the edge of the disc body (1) and are spaced apart along the circumference of the disc body (1). The cover plate (2) is rotatable relative to the disc body (1) so that the cover plate (2) has a first position for opening the blood separation chamber (11) and the reaction chambers (12) and a second position for closing the blood separation chamber (11) and the reaction chambers (12).

2. A centrifuge reagent tray according to claim 1, characterized in that, The cover plate (2) is provided with a first communication port (21) corresponding to the blood separation chamber (11) and a plurality of second communication ports (22) corresponding to the plurality of reaction chambers (12). When the cover plate (2) is in the first position, the first communication port (21) is opposite to the blood separation chamber (11) and each of the second communication ports (22) is opposite to its corresponding reaction chamber (12). When the cover plate (2) is in the second position, the first communication port (21) is misaligned with the blood separation chamber (11) and each of the second communication ports (22) is misaligned with its corresponding reaction chamber (12).

3. A centrifuge reagent tray according to claim 1, characterized in that, The cover plate (2) is provided with a plurality of corresponding blood separation chambers (11) and a plurality of reaction chambers (12). The centrifuge reagent tray also includes connecting arms (3) corresponding to the plurality of cover plates (2). One end of each connecting arm (3) is rotatably connected to the tray body (1), and the other end of each connecting arm (3) is connected to its corresponding cover plate (2). Each connecting arm (3) can apply an elastic force toward the tray body (1) to its corresponding cover plate (2).

4. A centrifuge reagent tray according to claim 3, characterized in that, The connecting arm (3) includes a connecting section (31) and a pressure section (32). The connecting section (31) is rotatably connected to the disc body (1), and the pressure section (32) protrudes in a direction away from the disc body (1) and is connected to the cover plate (2).

5. A centrifuge reagent tray according to claim 4, characterized in that, The connecting arm (3) also includes a support section (33) located at the end of the pressure section (32) away from the connecting section (31). The support section (33) is arranged parallel to the end face of the cover plate (2) away from the disc body (1) and is connected to the cover plate (2).

6. A centrifuge reagent tray according to claim 5, characterized in that, The support section (33) is provided with a connecting groove (331), and the cover plate (2) is provided with a connecting block (221) extending into the connecting groove (331).

7. A centrifuge reagent tray according to claim 6, characterized in that, The support section (33) is located at the bottom of the pressure section (32) and extends from the pressure section (32) toward the connecting section (31). The connecting groove (331) has a through-hole located at one end of the support section (33) near the connecting section (31). The connecting block (221) is provided with a stop edge (222), which is located at the top of the support section (33).

8. A centrifuge reagent tray according to any one of claims 1-7, characterized in that, The cover plate (2) is provided with a plurality of sealing rings (231), and the plurality of sealing rings (231) are provided one-to-one with the blood separation chamber (11) and the plurality of reaction chambers (12). The plurality of sealing rings (231) are all located between the cover plate (2) and the disc body (1). When the cover plate (2) is in the second position, each sealing ring (231) surrounds its corresponding blood separation chamber (11) or reaction chamber (12).

9. A centrifuge reagent tray according to claim 8, characterized in that, The cover plate (2) is provided with a plurality of receiving grooves (23), and the plurality of receiving grooves (23) are provided one-to-one with the plurality of sealing rings (231), and at least a portion of each sealing ring (231) is located in its corresponding receiving groove (23).

10. A centrifuge reagent tray according to any one of claims 1-7, characterized in that, The disc body (1) has a central region and an edge region surrounding the central region. The blood separation chamber (11) and the plurality of reaction chambers (12) are all located in the edge region. The side of the blood separation chamber (11) and the plurality of reaction chambers (12) away from the central region has a guide wall (111). The guide wall (111) is inclined downward in the direction close to the central region.

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