Sample filling device for microfluidic disc

Abstract

The utility model relates to the technical field of sample filling devices, in particular to a microfluidic disc sample filling device which comprises a bottom plate, a three-axis moving mechanism, a filling mechanism and a disc supporting seat, a three-axis moving mechanism is arranged on the bottom plate, the three-axis moving mechanism is connected with the filling mechanism and is used for driving the filling mechanism to move, and the disc supporting seat is mounted on the bottom plate and is used for placing and heating a disc; and the filling mechanism is used for filling samples into the disc placed on the disc supporting seat. The device has the beneficial effects that the filling mechanism is moved through the three-axis moving mechanism, manual filling is replaced with mechanical automation of the filling mechanism, operation is convenient, a disc is heated through the disc supporting base with the heating function, the time needed for unfreezing the disc can be shortened, and then the time needed for the detection process is shortened.

Description

Technical Field

[0001] This utility model relates to the field of sample dispensing device technology, specifically to a microfluidic disc dispensing device for sample dispensing. Background Technology

[0002] Technological advancements have made point-of-care testing (POCT) increasingly less restricted by location or operator expertise; its applications have expanded beyond bedside care to include home healthcare, mobile medicine, field settings, battlefield medicaments, and even back into central laboratory settings. Especially with the continuous maturation of precise quantitative POCT testing systems, particularly the development of microfluidic technology, the use of POCT in laboratory settings is gradually becoming a reality. Therefore, modern POCT has become synonymous with "on-site," "fast," and "convenient." Simultaneously, while ensuring accurate test results, smaller size has become a development trend for POCT.

[0003] Currently, the microfluidic discs need to be taken out and thawed. After thawing for 30 minutes, the sample is added using a pipette and then placed into the device for testing. The whole process takes a relatively long time and requires manual sample addition. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a device for adding samples to a microfluidic disc, so as to solve the problem that in the prior art, microfluidic discs need to be taken out and thawed for 30 minutes before being placed into the device for testing. The whole process requires a long wait and manual sample addition, which is inconvenient to operate.

[0005] A device for dispensing samples onto a microfluidic disk includes a base plate, a three-axis moving mechanism, a dispensing mechanism, and a disk support.

[0006] A three-axis moving mechanism is provided on the base plate. The three-axis moving mechanism is connected to the filling mechanism and is used to drive the filling mechanism to move. The disc support is installed on the base plate to place and heat the disc. The filling mechanism is used to fill the disc placed on the disc support with samples.

[0007] Furthermore, the dispensing mechanism includes a stepper motor support, a guide mechanism, a sliding needle bracket, a suction pin, a nozzle suction device, and a nozzle;

[0008] The stepper motor support is connected to the three-axis moving mechanism; the guide mechanism is connected to the stepper motor support and is used to drive the sliding needle bracket to move up or down. A suction pin is provided on one side of the sliding needle bracket. The bottom end of the suction pin is inserted downward into the gun head suction device installed at the bottom of the motor bracket; a double-lip seal is provided between the suction pin and the gun head suction device. The gun head suction device is used to install the gun head.

[0009] Furthermore, the guiding mechanism includes a stepper motor, a fourth guide rail, a fourth slider, and a lead screw;

[0010] The stepper motor is mounted on the top of the stepper motor support. The output shaft at the bottom of the stepper motor is connected to a vertically arranged lead screw via a coupling. A sliding pin bracket is connected to the lead screw. One side of the sliding pin bracket is connected to the fourth slider. The fourth slider is slidably connected to the fourth guide rail, which is vertically arranged on the stepper motor support.

[0011] Furthermore, the three-axis moving mechanism includes a longitudinal moving mechanism, a lateral moving mechanism, and a vertical moving mechanism;

[0012] The longitudinal moving mechanism includes a first motor support, a first motor, a first transmission wheel, a first transmission belt, a first synchronous pulley, a first guide rail, a first slider, and a first buckle plate;

[0013] The first motor support is connected to the top surface of the base plate. The first motor is provided at one end of the top of the first motor support. The output shaft of the first motor passes through the top surface of the first motor support and is connected to the first transmission wheel. The first transmission wheel is driven by the first transmission belt and the first synchronous wheel. The first transmission wheel and the first synchronous wheel are longitudinally spaced apart. The first synchronous wheel is rotatably connected.

[0014] The top of the first motor support is provided with a longitudinally extending first guide rail, and a first slider is slidably connected on the first guide rail. The top of the first slider is connected to the lateral moving mechanism. One side of the lateral moving mechanism is connected to the first transmission belt through the first buckle plate and drives the lateral moving mechanism to move longitudinally through the first transmission belt.

[0015] The lateral moving mechanism is connected to the vertical moving mechanism, which drives the vertical moving mechanism to move laterally, and the lateral moving mechanism drives the filling mechanism to move vertically.

[0016] Furthermore, the lateral movement mechanism includes a second motor support, a second motor, a second transmission wheel, a second transmission belt, a second synchronous pulley, a second guide rail, a second slider, and a second latching plate.

[0017] The second motor support is connected to the first slider. One side of the second motor support is connected to the first transmission belt via a first buckle. The bottom surface of the second motor support is connected to the second motor. The output shaft of the top of the second motor passes through the top surface of the second motor support and is connected to the second transmission wheel. The second transmission wheel is used to transmit power through the second transmission belt and the second synchronous wheel. The second transmission wheel is rotatably connected to the second motor support.

[0018] The top of the second motor support is provided with a second guide rail that extends laterally. A second slider is slidably connected to the second guide rail. The top surface of the second slider is connected to the vertical moving mechanism. One side of the vertical moving mechanism is connected to the second transmission belt through the second buckle plate and drives the vertical moving mechanism to move laterally through the second transmission belt.

[0019] Furthermore, the vertical moving mechanism includes a third motor support, a third motor, a third transmission wheel, a third transmission belt, a third synchronous pulley, a third guide rail, a third slider, and a third latching plate.

[0020] The third motor support is connected to the second slider, and one side of the third motor support is connected to the second transmission belt through the first buckle; a third motor is connected to one side of the third motor support, and the output shaft of the third motor extends through the third motor support away from the lateral movement mechanism and is connected to the third transmission wheel. The third transmission wheel is used to transmit power through the third transmission belt and the third synchronous wheel. The third transmission wheel and the third synchronous wheel are vertically spaced apart. The third synchronous wheel is rotatably connected to the third motor support.

[0021] A vertically extending third guide rail is provided on one side of the third motor support. A third slider is slidably connected to the third guide rail. The third slider is connected to the stepper motor support of the filling mechanism from the side opposite to the third motor support. One side of the stepper motor support is connected to the third transmission belt through the third buckle plate and drives the filling mechanism to move laterally through the third transmission belt.

[0022] Furthermore, the inner wall of the disk support is uniformly provided with a number of protrusions, and the outer periphery of the disk is provided with grooves that match the protrusions.

[0023] Furthermore, a gun head box is provided on the base plate.

[0024] Furthermore, a waste bin is provided on the base plate.

[0025] Furthermore, the base plate is provided with a centrifuge tube support for placing centrifuge tubes, and a limiting part is provided at the top of the centrifuge tube support.

[0026] Beneficial effects: The filling mechanism is moved by a three-axis moving mechanism, and the mechanical automation of the filling mechanism replaces manual filling, which is convenient to operate. By setting a plate support seat with heating function to heat the plate, the time required for plate thawing can be reduced, thereby reducing the time required for the testing process. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 :

[0030] Figure 3 This is a front view of an embodiment of the present utility model;

[0031] Figure 4 The left view of an embodiment of this utility model is as follows:

[0032] Figure 5 This is a right view of an embodiment of the present utility model;

[0033] Figure 6 This is a top view of an embodiment of the present utility model;

[0034] Figure 7 This is a schematic diagram of the nozzle suction device installation according to an embodiment of the present utility model;

[0035] Figure 8 This is a schematic diagram of the centrifuge tube installation according to an embodiment of the present invention.

[0036] In the diagram: 1. Base plate;

[0037] 2. Longitudinal moving mechanism; 201. First motor support; 202. First motor; 203. First transmission wheel; 204. First transmission belt; 205. First synchronous pulley; 206. First guide rail; 207. First slider; 208. First buckle plate;

[0038] 3. Lateral movement mechanism; 301. Second motor support; 302. Second motor; 303. Second transmission wheel; 304. Second transmission belt; 305. Second synchronous pulley; 306. Second guide rail; 307. Second slider; 308. Second buckle plate;

[0039] 4. Vertical moving mechanism; 401. Third motor support; 402. Third motor; 403. Third transmission wheel; 404. Third transmission belt; 405. Third synchronous pulley; 406. Third guide rail; 407. Third slider; 408. Third buckle plate;

[0040] 5. Filling mechanism; 501. Stepper motor support; 5011. Mounting part; 502. Stepper motor; 503. Fourth guide rail; 504. Fourth slider; 505. Coupling; 506. Lead screw; 507. Gun head suction device; 508. Double lip seal; 509. Suction pin; 511. Gun head; 512. Sliding needle bracket;

[0041] 6. Disc support base; 7. Disc; 8. Centrifuge tube support; 801. Limiting part; 9. Centrifuge tube; 10. Pipe head box; 11. Waste bin. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0043] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0044] like Figure 1 The device shown is a microfluidic disk sample dispensing device, including a base plate 1, a three-axis moving mechanism, a dispensing mechanism 5, and a disk support 6;

[0045] A three-axis moving mechanism is provided on the base plate 1. The three-axis moving mechanism is connected to the filling mechanism 5 and is used to drive the filling mechanism 5 to move. The disc support seat 6 is installed on the base plate 1 to place and heat the disc 7. The filling mechanism 5 is used to fill the disc 7 placed on the disc support seat 6 with the sample.

[0046] In this embodiment, the filling mechanism 5 is moved by a three-axis moving mechanism, and the mechanical automation of the filling mechanism 5 replaces manual filling, which is convenient to operate. By setting a disk support seat 6 with heating function to heat the disk 7, the time required for the disk 7 to thaw can be reduced, thereby reducing the time required for the detection process.

[0047] like Figures 2-8 The filling mechanism 5 shown includes a stepper motor support 501, a fourth slider 504, a fourth guide rail 503, a stepper motor 502, a lead screw 506, a sliding needle bracket 512, a suction pin 509, a nozzle suction device 507, and a nozzle 511; the fourth slider 504, the fourth guide rail 503, the stepper motor 502, and the lead screw 506 are collectively referred to as a lifting mechanism, which is used to control the lifting and lowering of the suction pin 509;

[0048] A stepper motor support 501 is connected to a three-axis moving mechanism. A stepper motor 502 is mounted on the top of the stepper motor support 501. A vertically arranged fourth guide rail 503 is mounted on one side of the stepper motor 502. A fourth slider 504 is slidably connected to the fourth guide rail 503. A sliding pin bracket 512 is connected to the side of the fourth slider 504 facing away from the fourth guide rail 503. The output shaft at the bottom of the stepper motor 502 is connected to a vertically arranged lead screw 506 to drive the lead screw 506 to rotate. A sliding pin bracket 512 is threaded onto the lead screw 506. One side of the sliding pin bracket 512 is connected to the fourth slider 504. The lead screw 506 is used to control the movement of the sliding pin bracket 512. The stepper motor 502 can move upwards or downwards; a vertically arranged suction pin 509 is connected to one side of the sliding needle support 512; a mounting part 5011 is provided at the bottom of the stepper motor support 501, and a pipette tip suction device 507 is provided on the mounting part 5011. The bottom end of the pipette tip suction device 507 can be inserted into the pipette tip 511 to lift the pipette tip 511. The pipette tip suction device 507 is provided with a through hole for the vertical movement of the suction pin 509. A double-lip seal 508 is provided between the suction pin 509 and the pipette tip suction device 507 for sealing. The suction pin 509 is used to move upwards so that the pipette tip 511 can pick up the sample, or to move downwards so that the pipette tip 511 is disengaged from the pipette tip suction device 507. Preferably, the output shaft at the bottom of the stepper motor 502 is connected to the lead screw 506 via a coupling.

[0049] In this embodiment, the injection mechanism 5 is mainly used to draw samples through the nozzle 511, and then the nozzle 511 after drawing samples is moved above the disc 7 by the three-axis moving mechanism to inject the sample onto the disc 7.

[0050] The base plate 1 is provided with a centrifuge tube support 8 for placing centrifuge tubes 9. A limiting part 801 is provided on one side of the top of the centrifuge tube support 8, which is used to limit the cap of the centrifuge tube 9.

[0051] In this embodiment, the limiting part 801 is provided to limit the cap of the centrifuge tube 9, so as to prevent the cap from resetting and covering the cap under the action of elasticity, which would affect the pipette tip 511 from drawing the sample in the centrifuge tube 9.

[0052] An opening is provided on one side of the inner side of the disk support 6, and several protrusions are provided circumferentially at intervals on the inner wall of the disk support 6. A groove is provided on the outer periphery of the disk 7 corresponding to the protrusions to match the protrusions.

[0053] In this embodiment, the opening is provided to create a space between the bottom of the disc 7 and the disc support 6 for inserting a hand or other tools, so as to facilitate placing the disc 7 or removing the disc 7 from the disc support 6.

[0054] The base plate 1 is provided with a gun head box 10 for placing the gun head 511 and a waste bin 11 for placing the used gun head 511.

[0055] In this embodiment, the gun head box 10 is used to hold the gun head 511 before use, and the waste bin 11 is used to hold the gun head 511 after use. The gun head 511 is a disposable item to avoid the impact on the measurement structure caused by the repeated use of the gun head.

[0056] The three-axis moving mechanism includes a longitudinal moving mechanism 2, a transverse moving mechanism 3, and a vertical moving mechanism 4.

[0057] The longitudinal moving mechanism 2 includes a first motor support 201, a first motor 202, a first transmission wheel 203, a first transmission belt 204, a first synchronous pulley 205, a first guide rail 206, a first slider 307 / 207, and a first buckle plate 208.

[0058] The first motor support 201 is connected to the top surface of the base plate 1. A first motor 202 is provided at one end of the top of the first motor support 201. The output shaft of the top of the first motor 202 passes through the top surface of the first motor support 201 and is connected to the first transmission wheel 203. The first transmission wheel 203 is driven by the first transmission belt 204 and the first synchronous wheel 205. The first transmission wheel 203 and the first synchronous wheel 205 are longitudinally spaced apart. The first synchronous wheel and the first bearing are sleeved on the first mandrel. The top and bottom of the first mandrel are connected to the first bearing and the first synchronous wheel 205 by the first retaining ring, so that the first synchronous wheel 205 can rotate synchronously with the first mandrel. The first mandrel is rotatably connected to the top of the first motor support 201 by the bearing. The first mandrel, the first retaining ring, and the first bearing are existing technologies for rotatably connecting the first synchronous wheel 205 and the first motor support 201, and will not be described in detail here.

[0059] The top of the first motor support 201 is provided with a longitudinally extending first guide rail 206. A first slider 307207 is slidably connected to the first guide rail 206. The top of the first slider 307207 is connected to the transverse moving mechanism 3. One side of the transverse moving mechanism 3 is connected to the first transmission belt 204 through the first buckle plate 208 and drives the transverse moving mechanism 3 to move longitudinally through the first transmission belt 204.

[0060] The lateral movement mechanism 3 includes a second motor support 301, a second motor 302, a second transmission wheel 303, a second transmission belt 304, a second synchronous pulley 305, a second guide rail 306, a second slider, and a second latching plate 308.

[0061] The second motor support 301 is connected to the first slider 307207. One side of the second motor support 301 is connected to the first transmission belt 204 via a first buckle. The bottom surface of the second motor support 301 is connected to the second motor 302. The output axis of the top of the second motor 302 passes through the top surface of the second motor support 301 and is connected to the second transmission wheel 303. The second transmission wheel 303 is used to transmit power through the second transmission belt 304 and the second synchronous wheel 305. The second transmission wheel 303 and the second synchronous wheel 305 are laterally spaced. The second synchronous wheel and the second bearing are sleeved on the second mandrel. The top and bottom of the second mandrel are connected to the second bearing and the second synchronous wheel 305 via a second retaining ring, so that the second synchronous wheel 305 can rotate synchronously with the second mandrel. The second mandrel is rotatably connected to the second motor support 301 via the bearing. The second mandrel, the second retaining ring, and the second bearing are existing technologies for rotatably connecting the second synchronous wheel 305 and the second motor support 301, and will not be described in detail here.

[0062] The top of the second motor support 301 is provided with a second guide rail 306 extending laterally. A second slider is slidably connected to the second guide rail 306. The top surface of the second slider is connected to the vertical moving mechanism 4. One side of the vertical moving mechanism 4 is connected to the second transmission belt 304 through the second buckle plate 308 and drives the vertical moving mechanism 4 to move laterally through the second transmission belt 304.

[0063] The vertical moving mechanism 4 includes a third motor support 401, a third motor 402, a third transmission wheel 403, a third transmission belt 404, a third synchronous pulley 405, a third guide rail 406, a third slider 407, and a third buckle plate 408.

[0064] The third motor support 401 is connected to the second slider. One side of the third motor support 401 is connected to the second transmission belt 304 via a first buckle. A third motor 402 is connected to one side of the third motor support 401. The output shaft of the third motor 402 extends through the third motor support 401 away from the lateral moving mechanism 3 and is connected to the third transmission wheel 403. The third transmission wheel 403 is used to transmit power through the third transmission belt 404 and the third synchronous wheel 405. The third transmission wheel 403 and the third synchronous wheel 405 are vertically spaced apart. The third synchronous wheel and the third bearing are sleeved on the third mandrel. One end of the third mandrel and the other end of the third mandrel are connected to the third bearing and the third synchronous wheel 405 via a third retaining ring, so that the third synchronous wheel 205 can rotate synchronously with the third mandrel. The third mandrel is rotatably connected to the third motor support 401 via the bearing. The third mandrel, the third retaining ring, and the third bearing are existing technologies for rotatably connecting the third synchronous wheel 405 and the third motor support 401, and will not be described in detail here.

[0065] A vertically extending third guide rail 406 is provided on one side of the third motor support 401. A third slider 407 is slidably connected to the third guide rail 406. The third slider 407 is connected to the stepper motor support 501 of the filling mechanism 5 on one side away from the third motor support 401. One side of the stepper motor support 501 is connected to the third transmission belt 404 through the third buckle plate 408 and drives the filling mechanism 5 to move laterally through the third transmission belt 404.

[0066] In this embodiment, the three-axis moving mechanism has a simple structure, is easy to manufacture and use, and can better adjust the position of the filling mechanism 5.

[0067] Working principle: First, the disc 7 is installed on the disc support 6, the nozzle 511 is placed on the nozzle box 10, and the centrifuge tube 9 is placed on the centrifuge tube support 8.

[0068] The three-axis motion mechanism is activated to move the dispensing mechanism 5 onto the nozzle box 10 and drive the dispensing mechanism 5 to move downwards. The nozzle suction device 507 is inserted downwards into the nozzle 511 to engage the nozzle 511.

[0069] The three-axis motion mechanism drives the gun head 511 to move upward, then moves it above the centrifuge tube 9 and then moves it downward to insert it into the centrifuge tube 9.

[0070] Stepper motor 502 drives lead screw 506 to rotate. The rotation of lead screw 506 controls the sliding needle support 512 to move upward. The sliding needle support 512 drives the suction pin 509 to move upward. Due to the double lip seal 508, the top of the pipette tip 507 is sealed. After the pipette tip 511 is inserted into the liquid sample in the centrifuge tube 9, a sealed space is formed. After the suction pin 509 moves upward, the sample is sucked into the pipette tip 511 under the action of air pressure.

[0071] Subsequently, the three-axis motion mechanism moves the sample-drawing nozzle 511 above the disk 7 and injects the sample onto the disk 7. At the same time as the sample is injected into the disk 7, the disk support 6 heats the disk 7.

[0072] After the sample is injected, the three-axis motion mechanism moves the injection mechanism to the waste bin 11. Then the suction pin 509 moves downward until it touches the nozzle 511, causing the nozzle 511 to detach from the nozzle suction device 507 and fall downward into the waste bin 11.

[0073] The heated disc 7 is removed through the opening on one side of the disc support 6, and then proceeds to the next process.

[0074] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A device for dispensing samples onto a microfluidic disk, characterized in that, Includes base plate, three-axis moving mechanism, filling mechanism, and disc support base; A three-axis moving mechanism is provided on the base plate. The three-axis moving mechanism is connected to the filling mechanism and is used to drive the filling mechanism to move. The disc support is installed on the base plate to place and heat the disc. The filling mechanism is used to fill the disc placed on the disc support with samples.

2. The device for microfluidic disk sample dispensing according to claim 1, characterized in that, The dispensing mechanism includes a stepper motor support, a guide mechanism, a sliding needle bracket, a suction pin, a nozzle suction device, and a nozzle; The stepper motor support is connected to the three-axis moving mechanism; the guide mechanism is connected to the stepper motor support and is used to drive the sliding needle bracket to move up or down. A suction pin is provided on one side of the sliding needle bracket. The bottom end of the suction pin is inserted downward into the gun head suction device installed at the bottom of the motor bracket; a double-lip seal is provided between the suction pin and the gun head suction device. The gun head suction device is used to install the gun head.

3. The device for microfluidic disk sample dispensing according to claim 2, characterized in that, The guiding mechanism includes a stepper motor, a fourth guide rail, a fourth slider, and a lead screw; The stepper motor is mounted on the top of the stepper motor support. The output shaft at the bottom of the stepper motor is connected to a vertically arranged lead screw via a coupling. A sliding pin bracket is connected to the lead screw. One side of the sliding pin bracket is connected to the fourth slider. The fourth slider is slidably connected to the fourth guide rail, which is vertically arranged on the stepper motor support.

4. The device for adding samples to a microfluidic disk according to claim 1, characterized in that, The three-axis moving mechanism includes a longitudinal moving mechanism, a lateral moving mechanism, and a vertical moving mechanism; The longitudinal moving mechanism includes a first motor support, a first motor, a first transmission wheel, a first transmission belt, a first synchronous pulley, a first guide rail, a first slider, and a first buckle plate; The first motor support is connected to the top surface of the base plate. The first motor is provided at one end of the top of the first motor support. The output shaft of the first motor passes through the top surface of the first motor support and is connected to the first transmission wheel. The first transmission wheel is driven by the first transmission belt and the first synchronous wheel. The first transmission wheel and the first synchronous wheel are longitudinally spaced apart. The first synchronous wheel is rotatably connected. The top of the first motor support is provided with a longitudinally extending first guide rail, and a first slider is slidably connected on the first guide rail. The top of the first slider is connected to the lateral moving mechanism. One side of the lateral moving mechanism is connected to the first transmission belt through the first buckle plate and drives the lateral moving mechanism to move longitudinally through the first transmission belt. The lateral moving mechanism is connected to the vertical moving mechanism, which drives the vertical moving mechanism to move laterally, and the lateral moving mechanism drives the filling mechanism to move vertically.

5. The microfluidic disk sample dispensing device according to claim 4, characterized in that, The lateral movement mechanism includes a second motor support, a second motor, a second transmission wheel, a second transmission belt, a second synchronous pulley, a second guide rail, a second slider, and a second latching plate. The second motor support is connected to the first slider. One side of the second motor support is connected to the first transmission belt via a first buckle. The bottom surface of the second motor support is connected to the second motor. The output shaft of the top of the second motor passes through the top surface of the second motor support and is connected to the second transmission wheel. The second transmission wheel is used to transmit power through the second transmission belt and the second synchronous wheel. The second transmission wheel is rotatably connected to the second motor support. The top of the second motor support is provided with a second guide rail that extends laterally. A second slider is slidably connected to the second guide rail. The top surface of the second slider is connected to the vertical moving mechanism. One side of the vertical moving mechanism is connected to the second transmission belt through the second buckle plate and drives the vertical moving mechanism to move laterally through the second transmission belt.

6. The microfluidic disk sample dispensing device according to claim 5, characterized in that, The vertical moving mechanism includes a third motor support, a third motor, a third transmission wheel, a third transmission belt, a third synchronous pulley, a third guide rail, a third slider, and a third latching plate. The third motor support is connected to the second slider, and one side of the third motor support is connected to the second transmission belt through the first buckle; a third motor is connected to one side of the third motor support, and the output shaft of the third motor extends through the third motor support away from the lateral movement mechanism and is connected to the third transmission wheel. The third transmission wheel is used to transmit power through the third transmission belt and the third synchronous wheel. The third transmission wheel and the third synchronous wheel are vertically spaced apart. The third synchronous wheel is rotatably connected to the third motor support. A vertically extending third guide rail is provided on one side of the third motor support. A third slider is slidably connected to the third guide rail. The third slider is connected to the stepper motor support of the filling mechanism from the side opposite to the third motor support. One side of the stepper motor support is connected to the third transmission belt through the third buckle plate and drives the filling mechanism to move laterally through the third transmission belt.

7. The device for microfluidic disk sample dispensing according to claim 1, characterized in that, The inner wall of the disk support is uniformly provided with several protrusions, and the outer periphery of the disk is provided with grooves that match the protrusions.

8. The device for microfluidic disk sample dispensing according to claim 1, characterized in that, A gun head box is provided on the base plate.

9. The device for microfluidic disk sample dispensing according to claim 8, characterized in that, A waste bin is installed on the base plate.

10. The microfluidic disk sample dispensing device according to claim 8, characterized in that, The base plate is provided with a centrifuge tube support for placing centrifuge tubes, and a limiting part is provided at the top of the centrifuge tube support.

Images