Blood cell detection equipment for instant detection

Abstract

The invention discloses a blood cell detection device for instant detection, a bearing assembly of the blood cell detection device reciprocates between a loading station and a sample detection station, and the bearing assembly is used for receiving and loading a kit provided with an impedance detection cell at the loading station; and the shielding assembly is arranged at the sample detection station and is arranged to rotate by a preset angle in a manner of being driven by a transmission piece or a driving piece when the bearing assembly moves to the sample detection station so as to cover the bearing assembly for electromagnetic signal shielding. According to the mode, when the kit moves to the sample detection station for detection, the blood cell detection equipment covers the kit through the shielding assembly and shields the electromagnetic signal, so that interference of the electromagnetic signal of an external device on the detection process of the kit is reduced, and the blood cell detection accuracy is improved; the anti-interference performance of the blood cell detection equipment is improved.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a blood cell detection device for point-of-care testing. Background Art

[0002] In the field of medical devices, blood cell detection devices can be used in conjunction with test kits and reagent cards to perform point-of-care testing on test samples, so as to improve the detection speed and enable users to quickly obtain test results.

[0003] When the existing blood cell detection devices use the impedance method to test the test samples in the test kits, they need to capture the changes in the electrical pulse signals of the test samples to characterize some characteristics of the blood cells. However, the electrical pulse signals are usually relatively weak and are easily interfered by other factors such as electromagnetic signals, resulting in large errors in the results of blood cell detection and being unfavorable for improving the accuracy of blood cell detection devices. Summary of the Invention

[0004] In order to solve the problem of being easily interfered by electromagnetic signals in the prior art, this application provides a blood cell detection device for point-of-care testing.

[0005] To solve the technical problems existing in the prior art, this application provides a blood cell detection device, including a carrying component and a shielding component. The carrying component reciprocates between a loading station and a sample detection station, and is used to receive and load a test kit provided with an impedance detection cell at the above-mentioned loading station; the shielding component is arranged at the above-mentioned sample detection station and is configured to rotate a preset angle in a manner driven by a transmission member or a driving member to cover the carrying component for electromagnetic signal shielding when the carrying component moves to the above-mentioned sample detection station.

[0006] Optionally, the above-mentioned blood cell detection device further includes an electrode connecting member and a voltage building connecting member. The above-mentioned electrode connecting member and the above-mentioned voltage building connecting member are arranged at the above-mentioned sample detection station and are used to dock with the test kit when the carrying component moves to the above-mentioned sample detection station; when the test kit is docked with the above-mentioned electrode connecting member and the above-mentioned voltage building connecting member or after the docking is completed, the above-mentioned shielding component rotates a preset angle to cover the carrying component for electromagnetic signal shielding.

[0007] Optionally, the above-mentioned carrying component is provided with a transmission member, and during the process of the carrying component moving to the above-mentioned sample detection station, the above-mentioned transmission member drives the above-mentioned shielding component to rotate.

[0008] Optionally, the above-mentioned transmission member is a roller, at least one end of the above-mentioned shielding component is located on the path of the reciprocating movement of the above-mentioned carrying component, and during the process of the carrying component moving to the above-mentioned sample detection station, the above-mentioned roller comes into contact with the above-mentioned shielding component and rolls, so that the above-mentioned shielding component rotates around an axis.

[0009] Optionally, the above-mentioned carrier assembly includes an elastic restoring member. When the carrier assembly moves away from the sample detection station, the elastic restoring member causes the carrier assembly to return to its initial position.

[0010] Optionally, the above-mentioned shielding assembly includes a driving member. When the carrier assembly moves to the sample detection station, the driving member drives the shielding assembly to rotate a preset angle.

[0011] Optionally, the above-mentioned shielding assembly includes a main body and a cover. The shielding assembly is arranged on the path of the reciprocating movement of the carrier assembly. The main body has an opening to allow the carrier assembly to enter through the opening; after the carrier assembly enters the main body, the cover is driven by the driving member to cover the opening.

[0012] Optionally, the above-mentioned blood cell detection device further includes a pipetting assembly. A liquid preparation station is also provided between the assembly station and the sample detection station. The pipetting assembly is used to prepare a detection liquid at the liquid preparation station; the pipetting assembly is located in front of the shielding assembly on the path of the reciprocating movement of the carrier assembly.

[0013] Optionally, the above-mentioned carrier assembly includes a carrier seat. The carrier seat is made of a metal material, and the shielding assembly and the carrier assembly form a shielding space.

[0014] Optionally, the above-mentioned blood cell detection device further includes an electrode connecting member and a voltage building connecting member. The docking positions of the reagent kit with the electrode connecting member and the voltage building connecting member are located within the shielding space.

[0015] Compared with the prior art, the carrier assembly of the blood cell detection device of the present application reciprocates between a loading station and a sample detection station. The carrier assembly is used to receive and load a reagent kit provided with an impedance detection cell at the loading station; the shielding assembly is arranged at the sample detection station and is configured to rotate a preset angle in a manner driven by a transmission member or a driving member to cover the carrier assembly for electromagnetic signal shielding when the carrier assembly moves to the sample detection station. By the above method, when the reagent kit moves to the sample detection station for detection, the shielding assembly covers the reagent kit and performs electromagnetic signal shielding to reduce the interference of electromagnetic signals from external devices on the detection process of the reagent kit, improve the accuracy of blood cell detection, and improve the anti-interference performance of the blood cell detection device. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the first embodiment of the blood cell detection device provided by the present application in the initial position;

[0018] Figure 2 It is a schematic structural diagram of the first embodiment of the blood cell detection device provided by the present application in the covered position;

[0019] Figure 3 is Figure 1 a schematic structural diagram of the shielding component in;

[0020] Figure 4 It is a schematic structural diagram of the second embodiment of the blood cell detection device provided by the present application in the initial position;

[0021] Figure 5 It is a schematic structural diagram of the second embodiment of the blood cell detection device provided by the present application in the covered position;

[0022] Figure 6 It is a schematic structural diagram of the third embodiment of the blood cell detection device provided by the present application in the initial position;

[0023] Figure 7 It is a schematic structural diagram of the third embodiment of the blood cell detection device provided by the present application in the covered position;

[0024] Figure 8 It is a schematic structural diagram of the fourth embodiment of the blood cell detection device provided by the present application. Detailed implementation manners

[0025] The following will further describe the present application in detail in conjunction with the accompanying drawings and embodiments. It should be specifically pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0026] References to "embodiments" in this specification mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "set", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] The embodiments of the present application first propose a blood cell detection device for instant detection, which is small in size and fast in detection speed, and can perform rapid detection immediately at the sampling site, with simple and fast operation.

[0029] Please refer to Figure 1 and Figure 2 , Figure 1 are schematic structural diagrams of the first embodiment of the blood cell detection device provided by the present application in the initial position, Figure 2 is a schematic structural diagram of the first embodiment of the blood cell detection device provided by the present application in the closed position. As Figure 1 and Figure 2 shown, the blood cell detection device includes a carrier assembly 10 and a shielding assembly 20.

[0030] The carrier assembly 10 reciprocates between a loading station and a sample detection station, and is used to receive the loading of a reagent kit 14 provided with an impedance detection cell 141 at the loading station. The shielding assembly 20 is disposed at the sample detection station, and is configured to rotate a preset angle in a manner driven by a transmission member 11 or a driving member 21 when the carrier assembly 10 moves to the sample detection station to cover the carrier assembly 10 for electromagnetic signal shielding.

[0031] Specifically, the carrier assembly 10 reciprocates in a preset direction. The blood cell detection device is provided with a loading station and a sample detection station; when the carrier assembly 10 is located at the loading station, the carrier assembly 10 is used to receive the reagent kit 14. The reagent kit 14 is provided with an impedance detection cell 141, and the impedance detection cell 141 is used to hold the sample to be tested and serve as a place for impedance detection of the sample to be tested. When the carrier assembly 10 moves to the sample detection station, the blood cell detection device can be electrically connected to the impedance detection cell 141 of the reagent kit 14, and impedance detection of the sample to be tested in the impedance detection cell 141 can be performed by the impedance method. When the carrier assembly 10 moves to the sample detection station, the carrier assembly 10 disposed at the sample detection station is driven and rotated by a transmission member 11 or a driving member 21 by a preset angle, so that the shielding assembly 20 covers the carrier assembly 10 and performs electromagnetic signal shielding on the impedance detection cell 141 during the detection process.

[0032] It can be understood that the shielding assembly 20 may include an initial position and a covering position after rotation. When the shielding assembly 20 is in the initial position, it does not cover the carrier assembly 10 or only partially covers the carrier assembly 10; when the shielding assembly 20 is in the covering position, multiple directions of the reagent kit 14 of the carrier assembly 10 are covered and electromagnetic signal shielding is achieved. In one embodiment, the shielding assembly 20 can be driven to rotate by the transmission member 11. At this time, the transmission member 11 can transmit an external force or the acting force of other components to drive the shielding assembly 20 to rotate. In another embodiment, the shielding assembly 20 can also be driven by the driving member 21. At this time, the driving member 21 specifically refers to a mechanism that drives through power output. For example, the driving member 21 can include driving members 21 that output power such as a servo motor, a lead screw motor, and an electric cylinder, so that the blood cell detection device can control the opening and closing of the shielding assembly 20 through the driving member 21, and the control accuracy is higher.

[0033] Among them, existing blood cell detection devices usually use a detection seat to receive a sample tube and move the sample to be tested in the sample tube to an internal impedance detection cell 141 for impedance detection. A large number of liquid pipelines are arranged on the detection seat for reagent delivery, so that the impedance detection cell 141 can be continuously used and a large number of continuous samples can be tested. However, the blood cell detection device of this embodiment only receives the reagent kit 14 through the carrier assembly 10 and assists in the impedance detection of the reagent kit 14. Since the impedance detection cell 141 is arranged on the reagent kit 14 and the reagent kit 14 can be used once, the blood cell detection device of this embodiment is more suitable for the scenario of point-of-care testing, reducing the time for reagent delivery, cleaning, etc., and quickly obtaining impedance detection results.

[0034] In the embodiment of the present application, the carrying component 10 of the blood cell detection device reciprocates between the loading station and the sample detection station. The carrying component 10 is used to receive the loading of the reagent kit 14 provided with the impedance detection cell 141 at the loading station; the shielding component 20 is arranged at the sample detection station and is configured to rotate a preset angle in a manner driven by the transmission member 11 or the driving member 21 to cover the carrying component 10 for electromagnetic signal shielding when the carrying component 10 moves to the sample detection station. In the above manner, when the reagent kit 14 moves to the sample detection station for detection, the shielding component 20 covers the reagent kit 14 and performs electromagnetic signal shielding, so as to reduce the interference of the electromagnetic signals of external devices on the detection process of the reagent kit 14, improve the accuracy of blood cell detection, and improve the anti-interference performance of the blood cell detection device.

[0035] In one embodiment, the blood cell detection device further includes an electrode connection member 31 and a voltage building connection member 32. The electrode connection member 31 and the voltage building connection member 32 are arranged at the sample detection station and are used to dock with the reagent kit 14 when the carrying component 10 moves to the sample detection station. When the reagent kit 14 is docked with the electrode connection member 31 and the voltage building connection member 32 or after the docking is completed, the shielding component 20 rotates a preset angle to cover the carrying component 10 for electromagnetic signal shielding.

[0036] Specifically, the blood cell detection device is connected to the reagent kit 14 through the electrode connection member 31 and the voltage building connection member 32. When the carrying component 10 is located at the sample detection station, the electrode connection member 31 is electrically connected to the electrode 143 on the reagent kit 14. The electrode connection member 31 is used to conduct the external current or voltage to the test sample in the impedance detection cell 141 through the electrode 143. The blood cell detection device collects the electrical pulse signal of the test sample and characterizes some characteristics of the blood cells according to the change of the electrical pulse signal to obtain the impedance detection result of the test sample.

[0037] The impedance detection cell 141 of the test kit 14 includes a front cell, a rear cell, and a counting hole. The test kit 14 further includes a negative pressure chamber 142. The front cell is used to hold the sample to be tested. The front cell is connected to the rear cell through the counting hole. The blood cell detection device collects the electrical pulse signal of the sample to be tested when the sample to be tested flows through the counting hole. The negative pressure chamber 142 is usually connected to the rear cell of the impedance detection cell 141. When the loading component 10 is located at the sample detection station, the pressure building connector 32 is connected to the negative pressure chamber 142 on the test kit 14. The pressure building connector 32 is used to build pressure and provide a negative pressure air flow for the negative pressure chamber 142, so that the negative pressure chamber 142 and the rear cell are in a negative pressure state, the front cell is in an atmospheric pressure state, and the sample to be tested in the front cell flows from the front cell to the rear cell under the action of the pressure difference, realizing the impedance detection of the sample to be tested. That is, the blood cell detection device controls the working states of the electrode connector 31 and the pressure building connector 32 to detect the sample to be tested in the impedance detection cell 141.

[0038] Among them, the shielding component 20 can close the shielding cover plate 22 during the process of the loading component 10 moving to the sample detection station, or can close the shielding cover plate 22 during the process of the loading component 10 moving to the sample detection station and docking, or can close the shielding cover plate 22 during the process of impedance detection after the test kit 14 is docked with the pressure building connector 32 and the electrode connector 31. No specific limitation is made here.

[0039] In the embodiment of the present application, when the blood cell detection device docks with the electrode connector 31 and the pressure building connector 32 or after the docking is completed, the shielding component 20 rotates a preset angle to cover the loading component 10 for electromagnetic signal shielding, so that the connection positions of the test kit 14 with the electrode connector 31 and the pressure building connector 32 can be covered by the shielding component 20, further reducing the interference of electromagnetic signals on the test kit 14, the electrode connector 31, and the pressure building connector 32, reducing the degree of electromagnetic interference, and improving the accuracy of blood cell detection.

[0040] In one embodiment, the loading component 10 is provided with a transmission member 11. During the process of the loading component 10 moving to the sample detection station, the transmission member 11 drives the shielding component 20 to rotate.

[0041] Specifically, please refer to Figure 3 , Figure 3 is Figure 1 the structural schematic diagram of the shielding component in Figure 3 As shown in

[0042] Exemplarily, when the carrier assembly 10 is located at other positions outside the sample detection station, the transmission member 11 may be in partial contact with the carrier assembly 10, which may be direct contact or indirect contact; when the carrier assembly 10 moves to the sample detection station, the carrier assembly 10 disengages from the transmission member 11 and causes the transmission member 11 to drive the shielding cover plate 22 to rotate along the first rotating shaft 212. Alternatively, when the carrier assembly 10 is located at other positions outside the sample detection station, the transmission member 11 does not operate and keeps the shielding cover plate 22 in its initial state without covering; when the carrier assembly 10 moves to the sample detection station, the carrier assembly 10 comes into contact with the transmission member 11 and causes the transmission member 11 to receive the external force applied by the carrier assembly 10. Under the action of the external force, the transmission member 11 drives the shielding cover plate 22 to rotate along the first rotating shaft 212, and the shielding cover plate 22 covers the carrier assembly 10 and performs electromagnetic signal shielding.

[0043] Optionally, the transmission member 11 is a roller, and at least one end of the shielding assembly 20 is located on the path of the reciprocating movement of the carrier assembly 10. During the movement of the carrier assembly 10 to the sample detection station, the roller comes into contact with the shielding assembly 20 and rolls, causing the shielding assembly 20 to rotate around the axis.

[0044] Specifically, the transmission member 11 may be a roller, and the roller is provided in front of or above the carrier assembly 10. When the carrier assembly 10 reciprocates between the loading station and the sample detection station, at least part of the shielding assembly 20 will come into contact with the roller of the carrier assembly 10; that is, when the carrier assembly 10 reciprocates, the height of the roller is the first height, and the height of the lowest end surface of the shielding assembly 20 when it is in the initial position is the second height. The first height is at least greater than or equal to the second height, so that during the repeated movement of the carrier assembly 10, it can contact the shielding assembly 20 through the roller, and the shielding assembly 20 rotates around the axis under the drive of the carrier assembly 10 and gradually covers the carrier assembly 10.

[0045] In a possible implementation manner, the shielding cover plate 22 includes a first cover plate, a second cover plate, a third cover plate, and a fourth cover plate. The first rotating shaft 212 is fixed at a preset height position. The first cover plate is connected to the first rotating shaft 212. The second cover plate, the third cover plate, and the fourth cover plate are respectively arranged around the first cover plate. The second cover plate is arranged opposite to the first rotating shaft 212. The third cover plate and the fourth cover plate are located on both sides of the second cover plate, so that a first opening is formed at the position of the shielding cover plate 22 relative to the first rotating shaft 212, and the test kit 14 is docked with the electrode connection member 31 and the voltage building connection member 32 through the first opening. Wherein, a sliding surface is provided on one side of the third cover plate and / or the fourth cover plate. The carrier assembly 10 includes a carrier seat 13 and a roller provided on the carrier seat 13. The carrier seat 13 is used to hold the test kit 14, and the roller is used to abut against the sliding surface during the movement of the carrier seat 13 to the sample detection station.

[0046] In an embodiment of the present application, during the movement of the carrier assembly 10 to the sample detection station, the roller contacts the shielding assembly 20, enabling the roller to transmit the driving force of the carrier assembly 10 to the shielding assembly 20. The shielding assembly 20 can directly rotate under the transmission of the roller and cover the carrier assembly 10. The structure is simple, the transmission is stable, and there is no need to use an independent driving member 21 for driving, reducing the cost of the blood cell detection device and improving the anti-interference performance of the blood cell detection device.

[0047] In one embodiment, the carrier assembly 10 includes an elastic restoring member 12. When the carrier assembly 10 moves away from the sample detection station, the elastic restoring member 12 causes the carrier assembly 10 to return to its initial position.

[0048] After the carrier assembly 10 completes the sample detection, in order to enable the shielding assembly 20 to return and remain in its initial position and reduce the interference of the shielding assembly 20 on other detection processes, in this embodiment, by setting the elastic restoring member 12, the shielding assembly 20 can restore its position through elastic force. Specifically, the elastic restoring member 12 can be, but is not limited to, a tension spring. One end of the tension spring is connected to the first cover plate, and the other end of the tension spring is connected to the carrier assembly 10. During the movement of the carrier assembly 10 to the sample detection station, the roller abuts against the shielding assembly 20 and drives the tension spring to stretch, so that the shielding cover plate 22 rotates; after the carrier assembly 10 moves away from the sample detection station, the roller disengages from the shielding assembly 20, causing the tension spring to drive the shielding assembly 20 to rotate in the reverse direction under the action of the elastic tension until the tension spring returns to its initial length and the shielding assembly 20 remains in its initial position.

[0049] In an embodiment of the present application, the elastic restoring member 12 causes the carrier assembly 10 to return to its initial position. The structure is simple and the maintenance cost is low, which can effectively reduce the cost of the blood cell detection device and improve the anti-interference performance of the blood cell detection device.

[0050] In one embodiment, please refer to Figures 4 - 7 , Figure 4 which is a schematic structural diagram of a second embodiment of the blood cell detection device provided by the present application in the initial position, Figure 5 which is a schematic structural diagram of a second embodiment of the blood cell detection device provided by the present application in the closed position, Figure 6 which is a schematic structural diagram of a third embodiment of the blood cell detection device provided by the present application in the initial position, Figure 7 which is a schematic structural diagram of a third embodiment of the blood cell detection device provided by the present application in the closed position. As Figures 4 - 7 shown, the shielding assembly 20 includes a driving member 21. When the carrier assembly 10 moves to the sample detection station, the driving member 21 drives the shielding assembly 20 to rotate a preset angle.

[0051] Specifically, the blood cell detection device of this embodiment can also control the rotation of the shielding component 20 through the driving member 21, so that the shielding component 20 can accurately rotate to the specified position, reduce the error problem that is likely to occur during the transmission process, and improve the shielding effect of the shielding component 20.

[0052] In an alternative embodiment, as Figure 4 and Figure 5 shown, the shielding component 20 includes a shielding cover plate 22, a first rotating shaft 212, a driving member 21, a rotating beam 213, and a first bearing 214. A first sliding groove 211 is provided on the shielding cover plate 22. The first bearing 214 is arranged in the first sliding groove 211. One end of the rotating beam 213 is connected to the first sliding groove 211 through the first bearing 214, and the other end of the rotating beam 213 is connected to the driving member 21. The driving member 21 is used to drive the rotating beam 213 to slide in the first sliding groove 211 to drive the shielding cover plate 22 to rotate along the first rotating shaft 212. The driving member 21 can be composed of a first motor and a motor bracket. The rotating beam 213 is connected to the output shaft of the first motor to slide based on the output power of the first motor.

[0053] In another alternative embodiment, as Figure 6 and Figure 7 shown, the shielding component 20 includes a main body 23 and a cover body 24. The shielding component 20 is arranged on the reciprocating movement path of the carrying component 10. The main body 23 has an opening to allow the carrying component 10 to enter through the opening; after the carrying component 10 enters the main body 23, the cover body 24 is driven by the driving member 21 to cover the opening.

[0054] Specifically, the carrying component 10 can include a carrying seat 13 and a guide rail. The carrying seat 13 is used to carry the reagent kit 14 and reciprocate along the guide rail. The main body 23 of the shielding component 20 is fixedly arranged at a certain position of the blood cell detection device and is located on one side of the electrode connection member 31 and the voltage building connection member 32. The main body 23 is used to partially cover the electrode connection member 31, the voltage building connection member 32, and the guide rail. The cover body 24 is correspondingly arranged with the main body 23. The cover body 24 is used to cover the opening of the main body 23, so that a sealed shielding space is formed inside the main body 23 after covering, and the blood cell detection device can perform sample detection on the impedance detection pool 141 of the reagent kit 14 in the shielding space.

[0055] Exemplarily, the main board may include a first board body, a second board body, a third board body, and a fourth board body. The electrode connection member 31 and the voltage building connection member 32 may be disposed on the first board body. The second board body is disposed above the first board body and shields the electromagnetic signals above. The third board body and the fourth board body are respectively located on both sides of the second board body and are oppositely disposed. The first board body, the third board body, and the fourth board body are used to partially shield the electromagnetic signals on the sides. An opening is provided opposite to the first board body. The carrier assembly 10 may enter the main body 23 through this opening. After the carrier assembly 10 enters the main body 23, the cover body 24 is driven by the driving member 21 and covers this opening.

[0056] Further, the shielding assembly 20 may further include a second rotating shaft 241 and a rotating mechanism. The second rotating shaft 241 is disposed on one side of the main body 23 close to the opening. For example, the second rotating shaft 241 is disposed on one side of the third board body or the fourth board body close to the opening. The rotating mechanism is disposed on the second rotating shaft 241 and is connected to the cover body 24. The rotating mechanism is used to drive the cover body 24 to rotate along the second rotating shaft 241 through the driving member 21 and cover the opening.

[0057] In a possible implementation manner, the rotating mechanism may include a transmission cross beam 243, a second bearing 244, and a second sliding groove 245. The cover body 24 is connected to the main body 23 through the second rotating shaft 241. The second sliding groove 245 is disposed on the cover body 24. The second bearing 244 is slidably connected to the second sliding groove 245. The driving member 21 may be composed of a second motor and a motor bracket. The first end of the transmission cross beam 243 is connected to the output shaft of the second motor. The second end of the transmission cross beam 243 is connected to the second bearing 244. The second motor is used to drive the transmission cross beam 243 to slide in the second sliding groove 245 and make the cover body 24 rotate along the second rotating shaft 241, so as to realize the covering and opening of the opening by the cover body 24.

[0058] In one embodiment, please refer to Figure 8 , Figure 8 is a schematic structural diagram of the fourth embodiment of the blood cell detection device provided by the present application. As Figure 8 shown, the blood cell detection device further includes a liquid transfer assembly 40. A liquid preparation station is further provided between the assembly station and the sample detection station. The liquid transfer assembly 40 is used to prepare the detection liquid at the liquid preparation station. The liquid transfer assembly 40 is located in front of the path of the shielding assembly 20 where the carrier assembly 10 reciprocates.

[0059] Specifically, in the present embodiment, the reagent box 14 includes an impedance detection pool 141 and a plurality of non-detection pools, the impedance detection pool 141 and the non-detection pools are arranged along a linear direction, and the carrying assembly 10 is used to move the reagent box 14 to the liquid preparation station along the linear direction of the reagent box 14, so that the impedance detection pool 141 and the non-detection pool of the reagent box 14 are sequentially located below the pipetting assembly 40. The pipetting assembly 40 may include a pipette 41 and a vertical motor 42, the vertical motor 42 is used to control the movement of the pipette 41 in the vertical direction so that the pipette 41 absorbs and discharges liquid, and the pipetting assembly 40 is used to perform multiple liquid transfers from the impedance detection pool 141 and the non-detection pool to configure the detection liquid. Therefore, the pipetting assembly 40 of the present embodiment is located on the path of the reciprocating motion of the carrying assembly 10.

[0060] It is understandable that since the pipetting assembly 40 usually uses a lifting motor to drive the pipette 41 to move back and forth in the height direction, the pipetting assembly 40 will occupy a large amount of space in the height direction. In order to reduce the possibility of collision failure between the pipetting assembly 40 and the shielding assembly 20, the present embodiment arranges the pipetting assembly 40 on the outside of the shielding assembly 20. Exemplarily, on the path of the reciprocating motion of the carrier assembly 10, the carrier assembly 10 is usually located on one side of the sample detection station and is at least used to electromagnetically shield the carrier assembly 10 of the sample detection station. Arranging the pipetting assembly 40 in front of the shielding assembly 20 on the path can make it difficult for the shielding assembly 20 to collide with the shielding assembly 20 during the rotation and covering process, thereby improving the reliability of the blood cell detection device.

[0061] In one embodiment, the carrying assembly 10 includes a carrying seat 13 , the carrying seat 13 is made of metal, and the shielding assembly 20 and the carrying assembly 10 form a shielding space.

[0062] Specifically, the supporting seat 13 can be provided with a metal seat body, which is used to support the test kit 14; and the shielding component 20 can be configured as a metal cover plate, so that when the shielding component 20 rotates along the first rotating shaft 212 or the second rotating shaft 241, the shielding component 20 and the supporting seat 13 can jointly form a metal shielding space and shield the electromagnetic signals outside the shielding space, thereby further improving the shielding effect and improving the accuracy of the blood cell detection equipment.

[0063] Optionally, the joints between the reagent box 14 and the electrode connector 31 and the voltage building connector 32 are located in the shielding space.

[0064] Specifically, the blood cell detection equipment performs impedance detection on the sample to be tested in the test kit 14 by docking the test kit 14 with the electrode connector 31 and the voltage building connector 32. Since the docking point of the test kit 14 is located in the shielded space, it can reduce the interference of devices such as motors outside the shielded space that may generate electromagnetic signals, thereby improving the accuracy of impedance detection.

[0065] The above are only the embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A blood cell detection device for instant detection, characterized in that, Comprising: A carrying component, reciprocating between a loading station and a sample detection station, for receiving and loading a reagent kit provided with an impedance detection cell at the loading station; A shielding component, disposed at the sample detection station, configured to rotate a preset angle in a manner driven by a transmission member or a driving member to cover the carrying component for electromagnetic signal shielding when the carrying component moves to the sample detection station.

2. The blood cell detection device according to claim 1, characterized in that, The blood cell detection device further includes an electrode connection member and a pressure building connection member, the electrode connection member and the pressure building connection member are disposed at the sample detection station, and are used for docking with the reagent kit when the carrying component moves to the sample detection station; When the reagent kit is docked with the electrode connection member and the pressure building connection member or after the docking is completed, the shielding component rotates a preset angle to cover the carrying component for electromagnetic signal shielding.

3. The blood cell detection device according to claim 1, wherein, The carrying component is provided with a transmission member, and during the process of the carrying component moving to the sample detection station, the transmission member drives the shielding component to rotate.

4. The blood cell detection device according to claim 3, wherein, The transmission member is a roller, at least one end of the shielding component is located on the reciprocating movement path of the carrying component, and during the process of the carrying component moving to the sample detection station, the roller contacts and rolls with the shielding component, so that the shielding component rotates around an axis.

5. The blood cell detection device according to claim 1, characterized in that, The carrying component includes an elastic restoring member, and when the carrying component moves away from the sample detection station, the elastic restoring member causes the carrying component to return to the initial position.

6. The blood cell detection device according to claim 1, wherein The shielding component includes a driving member, and when the carrying component moves to the sample detection station, the driving member drives the shielding component to rotate a preset angle.

7. The blood cell detection device according to claim 6, characterized in that, The shielding component includes a main body and a cover body, the shielding component is disposed on the reciprocating movement path of the carrying component, the main body has an opening to allow the carrying component to enter from the opening; after the carrying component enters the main body, the cover body is driven by the driving member to cover the opening.

8. The blood cell detection device according to claim 1, characterized in that, The blood cell detection device further includes a liquid transfer component, and a liquid preparation station is further provided between the assembly station and the sample detection station, and the liquid transfer component is used for preparing a detection liquid at the liquid preparation station; The liquid transfer component is located in front of the shielding component on the reciprocating movement path of the carrying component.

9. The blood cell detection device according to claim 1, wherein, The carrying component includes a carrying seat, the carrying seat is made of a metal material, and the shielding component and the carrying component form a shielding space.

10. The blood cell detection device according to claim 9, wherein, The blood cell detection device further includes an electrode connection member and a pressure building connection member, and the docking positions of the reagent kit with the electrode connection member and the pressure building connection member are located in the shielding space.

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