Cell suspension droplet slicing device

Abstract

The present invention discloses a cell suspension dropping device, which includes a carrier bin, a glass slide carrier, a feeding module, a carrier picking module, a carrier transfer line, a dropping protection area, a dropping partition and an inclination module, a sample tube storage area, a code scanning device, a capping device, a dropping nozzle area, a three-axis moving module and a frame. The device of the present invention arranges multiple glass slides side by side on the carrier, transports the carrier on the assembly line, and then places multiple carriers in a carrier bin. At the same time, multiple nozzles can be set for simultaneous dropping operation during the dropping process, greatly improving the dropping throughput and the efficiency of sample processing; the device of the present invention designs a physical partition with automatic lifting. During the dropping process, the partition automatically rises to prevent liquid splashing and cross-contamination between different samples; the device of the present invention adopts the method of inclined dropping, so that the suspension can flow and be evenly distributed on the glass slide; improving the uniformity and consistency of dropping, and ensuring the balanced distribution of samples in the entire dropping area.

Description

Technical Field

[0001] The present invention relates to the technical field of dropping tablet devices, and particularly to a cell suspension dropping tablet device. Background Art

[0002] In biological research and clinical diagnosis, automatic dropping tablet devices are widely used in the process of dropping cell suspension samples onto glass slides. However, the existing automated dropping tablet devices have the following technical drawbacks, which limit their application in high-throughput, high-efficiency, and high-precision sample preparation:

[0003] 1. Small throughput and low efficiency: The existing cell suspension dropping tablet devices usually can only transport and drop liquid on a single glass slide, resulting in a small throughput of the device and a low efficiency of glass slide transportation, thus limiting the speed of sample processing;

[0004] 2. Potential cross-contamination risk: During the liquid dropping process of the existing dropping tablet devices, there is a lack of effective isolation measures between glass slides, and there is a risk of sample cross-contamination caused by liquid splashing, affecting the accuracy and reliability of experimental results;

[0005] 3. Limited dropping tablet uniformity: The existing devices lack a design with inclination or other adjustable angles, resulting in non-uniform distribution of cell suspension on the glass slide and affecting the comprehensive evaluation of samples. Summary of the Invention

[0006] To solve the above technical problems, the present invention designs a cell suspension dropping tablet device.

[0007] The present invention adopts the following technical solutions:

[0008] A cell suspension dropping tablet device includes a carrier bin, a glass slide carrier, a loading module, a carrier picking module, a carrier transfer line, a dropping tablet protection area, a dropping tablet partition and an inclination module, a sample tube storage area, a code scanning device, a capping device, a dropping tablet nozzle area, a three-axis movement module and a frame;

[0009] The carrier bin includes a loading carrier bin and an unloading carrier bin. The loading carrier bin is used for loading and feeding the glass slide carrier without dropping tablets, and the unloading carrier bin is used for loading and unloading the glass slide carrier that has completed dropping tablets. The unloading carrier bin is arranged on the lifting mechanism at the end of the carrier transfer line;

[0010] Multiple glass slide placement grooves are provided on the glass slide carrier for loading multiple glass slides, and long grooves are respectively provided between adjacent glass slide placement grooves on the glass slide carrier;

[0011] The loading module is used for loading the carrier bin filled with the glass slide carrier without dropping tablets;

[0012] The carrier picking module is used for dialing the glass slide carrier without dropping tablets in the loading carrier bin onto the carrier transfer line;

[0013] A vehicle transfer line is used to transport the glass slide carriers without dropping tablets to the tablet dropping protection area for dropping tablets, and transport the glass slide carriers that have completed tablet dropping to the blanking carrier bin at the end of the vehicle transfer line;

[0014] The tablet dropping protection area is located above the vehicle transfer line. Dripping holes are respectively opened above the outer shell of the tablet dropping protection area corresponding to the number and positions of the glass slides on the glass slide carrier;

[0015] The tablet dropping partition and tilting module is arranged between the vehicle transfer lines and within the tablet dropping protection area. It consists of a lifting motor, a tilting motor, a guide rod, a sliding sleeve, a support plate, a rotating shaft pin, a vehicle guide post, a partition sheet, and a turning plate. The lifting motor drives the support plate to lift and lower along the guiding direction of the guide rod and the sliding sleeve. The tilting motor drives the turning plate to flip and retract along the rotating shaft pin at the hinge joint of the turning plate and the support plate. Multiple partition sheets are arranged on the turning plate corresponding to multiple long grooves on the glass slide carrier;

[0016] The sample tube storage area correspondingly stores multiple rows of sample tubes;

[0017] The barcode scanning device realizes the scanning of information of different sample tubes to be retrieved;

[0018] The cap screwing device realizes the automatic cap screwing and opening of the sample tubes;

[0019] The three-axis moving module includes a moving module that can move in three directions of the X, Y, and Z axes. The execution end of the moving module includes a carrier bin gripper, a sample tube gripper, and a pipette;

[0020] The tablet dropping nozzle area is used to place a disposable tablet dropping nozzle for loading on the tip of the pipette.

[0021] Preferably, each glass slide placement groove of the glass slide carrier is respectively provided with a spring piece and a dovetail groove structure, and multiple magnets N are arranged on the side of the glass slide carrier.

[0022] Preferably, multiple magnets S are correspondingly arranged on the side of the carrier bin. The magnets S are arranged in cooperation with the magnets N. Safety buckle structures are equipped at both ends of the carrier bin. A carrier bin gripper opening for the carrier bin gripper to grip is opened on the carrier bin. The setting of the safety buckle structure ensures that the glass slide carrier will not slip during the handling and transportation of the carrier bin.

[0023] Preferably, the loading module consists of a linear slide, a pawl, and a carrier bin lifting table. The pawl moves along the linear slide, and the carrier bin lifting table is arranged at the end of the linear slide. A sensor for detecting the position of the carrier bin is arranged on the linear slide. The lifting mechanism includes a lifting table and a lifting motor, and the lifting motor controls the linear lifting and lowering of the lifting table.

[0024] Preferably, the carrier picking module is composed of a hook piece, a hook piece lifting motor, a hook piece guiding slider, a hook piece moving motor and a hook piece moving slide. The hook piece moving motor drives the hook piece moving slide to move along the slide rail through a lead screw. The hook piece lifting motor on the hook piece moving slide drives the hook piece to lift along the hook piece guiding slider. The carrier picking module can send the slide carrier at the corresponding position in the carrier bin to the carrier transfer line.

[0025] Preferably, the carrier transfer line is composed of a transfer line motor, a rotating wheel and a conveyor belt. The transfer line motor drives the rotating wheel to rotate, thereby driving the conveyor belt to realize the transportation of the slide carrier on the conveyor belt.

[0026] Preferably, a temperature and humidity control device is connected to the dropping slide protection area, and the dropping hole is a square dropping hole. The settings of the temperature and humidity control device and the square dropping hole can effectively ensure the stability of the temperature and humidity in the dropping slide protection area.

[0027] Preferably, the sample tube storage area includes multiple rows of sample tube brackets and guide grooves. Each sample tube bracket can hold multiple sample tubes, and the sample tube bracket is pushed into the designated position along the guide groove.

[0028] Preferably, the code scanning device includes a code scanning head moving module and a code scanning head. The code scanning head is driven to move linearly by the code scanning head moving module to realize the information scanning of sample tubes at different positions.

[0029] Preferably, the cap screwing device is located on the frame beside the sample tube storage area. Multiple cap screwing devices are arranged side by side to realize the simultaneous cap screwing of multiple sample tubes. Multiple pipettes are arranged side by side to realize the simultaneous dropping of multiple pipette tips.

[0030] The beneficial effects of the present invention are as follows: (1) Compared with the existing devices, the device of the present invention arranges multiple glass slides side by side on a carrier, transports the carrier on a production line, and then places multiple carriers in a carrier bin. At the same time, during the droplet dispensing process, multiple nozzles can be set to perform droplet dispensing operations simultaneously, greatly improving the throughput of droplet dispensing and the efficiency of sample processing; (2) The device of the present invention is designed with an automatically lifting physical partition. During the droplet dispensing process, the partition automatically rises to prevent liquid splashing and cross-contamination between different samples; after the droplet dispensing is completed, the partition automatically descends, which does not affect the transportation of the carrier on the production line, effectively protecting the purity of the sample and ensuring the accuracy and reliability of the experimental results; (3) The device of the present invention uses an inclined droplet dispensing method, and uses a lifting device to lift the carrier to a certain angle so that the suspension can flow and be evenly distributed on the glass slide; this improves the uniformity and consistency of droplet dispensing, ensures the balanced distribution of the sample throughout the droplet dispensing area, and enhances the reliability of subsequent microscopic observation and analysis; (4) The present invention also takes into account a series of supporting modules required for automatic droplet dispensing, such as a constant temperature and humidity protection area for the droplet dispensing area, a sample tube barcode scanning function, an opening function, a lifting and transfer of the carrier bin, etc., making the device have a wide range of application prospects in the field of cell suspension droplet dispensing and sample processing. Brief Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the present invention;

[0032] Figure 2 is a schematic structural diagram of the glass slide carrier related to the present invention.

[0033] Figure 3 is a schematic structural diagram of the carrier picking module related to the present invention.

[0034] Figure 4 is a schematic structural diagram of the feeding module related to the present invention.

[0035] Figure 5 is a schematic structural diagram of the droplet dispensing partition and tilting module related to the present invention.

[0036] Figure 6 is a schematic working diagram of the droplet dispensing partition and tilting module related to the present invention;

[0037] In the figure: 1. Vehicle bin, 11. Magnet S, 12. Vehicle bin clamping opening, 2. Slide carrier, 21. Slide, 22. Spring piece, 23. Dovetail groove structure, 24. Long groove, 25. Magnet N, 3. Feeding module, 31. Linear slide, 32. Pawl, 33. Vehicle bin lifting platform, 4. Vehicle picking module, 41. Picking piece, 42. Picking piece lifting motor, 43. Picking piece guiding slider, 44. Picking piece moving motor, 45. Picking piece moving slide, 5. Vehicle transfer line, 51. Transfer line motor, 52. Rotating wheel, 53. Conveyor belt, 6. Droplet protection area, 61. Temperature and humidity control device, 62. Square droplet hole, 7. Droplet partition and tilting module, 71. Lifting motor, 72. Tilting motor, 73. Guide rod, 74. Sliding sleeve, 75. Support plate, 76. Rotating shaft pin, 77. Vehicle guiding column, 78. Partition piece, 79. Flipping plate, 8. Sample tube storage area, 81. Sample tube bracket, 82. Sample tube, 83. Guide groove, 9. Scanning device, 91. Scanning head moving module, 92. Scanning head, 10. Cap screwing device, 13. Three-axis moving module, 131. Vehicle bin clamping jaw, 132. Sample tube clamping jaw, 133. Pipette, 14. Frame, 15. Droplet head area. Detailed implementation manners

[0038] The technical solutions of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0039] Embodiment: As Figures 1 - 6 shown, a cell suspension droplet device includes a vehicle bin 1, a slide carrier 2, a feeding module 3, a vehicle picking module 4, a vehicle transfer line 5, a droplet protection area 6, a droplet partition and tilting module 7, a sample tube storage area 8, a scanning device 9, a cap screwing device 10, a droplet head area 15, a three-axis moving module 13 and a frame 14;

[0040] The vehicle bin includes a feeding vehicle bin and a discharging vehicle bin. The feeding vehicle bin is used for loading and feeding the slide carrier without droplet. The discharging vehicle bin is used for loading and discharging the slide carrier that has completed droplet. The discharging vehicle bin is arranged on the lifting mechanism at the end of the vehicle transfer line;

[0041] A plurality of slide placement grooves are provided on the slide carrier for loading multiple slides 21. Long grooves 24 are respectively arranged between adjacent slide placement grooves on the slide carrier;

[0042] The feeding module is used for feeding the vehicle bin filled with the slide carrier without droplet;

[0043] The vehicle picking module is used for dialing the slide carrier without droplet in the feeding vehicle bin onto the vehicle transfer line;

[0044] A vehicle transfer line is used to transport the glass slide carriers without dropping tablets to the tablet dropping protection area for dropping tablets, and transport the glass slide carriers that have completed tablet dropping to the blanking carrier bin at the end of the vehicle transfer line;

[0045] The tablet dropping protection area is located above the vehicle transfer line. Dripping holes are respectively opened above the outer shell of the tablet dropping protection area corresponding to the number and positions of the glass slides on the glass slide carrier;

[0046] As Figure 5 shown, the tablet dropping partition and tilting module 7 is arranged between the vehicle transfer lines and within the tablet dropping protection area. It consists of a lifting motor 71, a tilting motor 72, a guide rod 73, a sliding sleeve 74, a support plate 75, a rotating shaft pin 76, a vehicle guide post 77, a partition piece 78, and a turning plate 79. The lifting motor drives the support plate to lift and lower along the guiding directions of the guide rod and the sliding sleeve. The tilting motor drives the turning plate to flip and retract along the rotating shaft pin at the hinge joint of the turning plate and the support plate. Multiple partition pieces are arranged on the turning plate corresponding to multiple long grooves on the glass slide carrier;

[0047] The sample tube storage area correspondingly stores multiple rows of sample tubes;

[0048] The barcode scanning device realizes the scanning of information of different sample tubes to be retrieved;

[0049] The capping device realizes the automatic capping and opening of the sample tubes;

[0050] The three-axis moving module includes a moving module that can move in three directions of the X, Y, and Z axes. The execution end of the moving module includes a carrier bin jaw 131, a sample tube jaw 132, and a pipette 133;

[0051] The tablet dropping tip area is used to place disposable tablet dropping tips for loading on the tips of the pipettes.

[0052] As Figure 2 shown, spring pieces 22 and dovetail groove structures 23 are respectively arranged on the glass slide placement grooves of each glass slide 21 of the glass slide carrier. Multiple magnets N25 are arranged on the side of the glass slide carrier.

[0053] As Figure 3 shown, multiple magnets S11 are correspondingly arranged on the side of the carrier bin. The magnets S and the magnets N are arranged in cooperation. Safety buckle structures are equipped at both ends of the carrier bin. A carrier bin jaw opening 12 for the carrier bin jaw to grip is opened on the carrier bin.

[0054] The vehicle hook module 4 consists of a hook piece 41, a hook piece lifting motor 42, a hook piece guiding slider 43, a hook piece moving motor 44, and a hook piece moving slide 45. The hook piece moving motor drives the hook piece moving slide to move along the slide rail through a lead screw. The hook piece lifting motor on the hook piece moving slide drives the hook piece to lift and lower along the hook piece guiding slider. The vehicle hook module can dial the glass slide carrier at the corresponding position in the carrier bin onto the vehicle transfer line.

[0055] As shown Figure 4 in FIG. 3, the loading module 3 is composed of a linear slide 31, a pawl 32 and a carrier bin lifting table 33. The pawl moves along the linear slide, and the carrier bin lifting table is arranged at the end of the linear slide. A sensor for detecting the position of the carrier bin is arranged on the linear slide. The lifting mechanism includes a lifting table and a lifting motor, and the lifting motor controls the linear lifting of the lifting table.

[0056] As shown Figure 6 in FIG. 4, the carrier transfer line 5 is composed of a transfer line motor 51, a rotating wheel 52 and a conveyor belt 53. The transfer line motor drives the rotating wheel to rotate, thereby driving the conveyor belt to realize the transportation of the slide carriers on the conveyor belt.

[0057] A constant temperature and humidity control device 61 is connected to the dropping protection area 6, and the dropping hole is a square dropping hole 62.

[0058] The sample tube storage area 8 includes multiple rows of sample tube brackets 81 and guide grooves 83. Each sample tube bracket can hold multiple sample tubes 82, and the sample tube brackets are pushed into the designated position along the guide grooves.

[0059] The code scanning device 9 includes a code scanning head moving module 91 and a code scanning head 92. The code scanning head is driven by the code scanning head moving module to move linearly to realize the information scanning of sample tubes at different positions.

[0060] The capping device 10 is located on the frame beside the sample tube storage area. Multiple capping devices are arranged side by side to realize capping of multiple sample tubes simultaneously. Multiple pipettes are arranged side by side to realize simultaneous dropping of multiple pipette tips.

[0061] The specific implementation process of the present invention is as follows:

[0062] a. The operator loads new slides into the slide carriers one by one, and then puts multiple slide carriers into the loading carrier bin. After the loading carrier bin is full, the operator places the loading carrier bin at the entrance of the loading module, pushes the loading carrier bin over the pawl of the loading module. After the sensor detects that a carrier bin is placed, the linear slide drives the pawl to move, conveys the loading carrier bin inward, creates a new loading space, and completes the loading after the loading carrier bin is full;

[0063] b. Push the sample tube bracket loaded with sample tubes along the guide groove to the required position, and require the label of the sample tube to face the code scanning device;

[0064] c. After starting the equipment, the constant temperature and humidity control device connected to the dropping protection bin is started to ensure the constant temperature and humidity in the dropping area and guarantee the dropping effect;

[0065] d. After the sample tube is scanned by the code scanning device, the sample tube gripper on the three-axis moving module grabs the sample tube and rotates the cap at the cap rotating device station. After the cap is rotated, the three-axis moving module drives the pipette to move to the dropper tip area to complete the installation of the disposable dropper tip;

[0066] e. The carrier grabbing module grabs the glass slide carrier in the carrier bin, sends it to the transfer line, and then the transfer line transports the glass slide carrier to be dropped to the dropping area;

[0067] f. After the glass slide carrier is transported to the dropping position, the lifting motor of the dropping partition and tilting module starts to work, driving the flipping plate to lift the glass slide carrier upward. At the same time, the partition sheet fixed on the flipping plate will also pass through the long slot on the carrier, lift the carrier to the required position, and then the tilting motor starts to work to push the flipping plate to tilt at a certain angle;

[0068] g. The pipette equipped with the dropper tip extends into the sample tube with the cap rotated in the cap rotating area, blows and mixes the cell suspension, aspirates a certain amount of cell suspension, and drops the suspension onto the glass slide through the square dropping hole above the dropper protection cover. After the dropping is completed, the pipette automatically retracts the disposable dropper tip;

[0069] h. Repeat the above steps d~g to complete the dropping operation of an entire glass slide carrier;

[0070] i. After the dropping of an entire glass slide carrier is completed, the tilting motor retracts, the glass slide carrier is placed flat, and then the lifting motor retracts, and the glass slide carrier after dropping is placed back on the carrier transfer line. The carrier transfer line transports the carrier to the empty unloading carrier bin on the right;

[0071] j. Repeat the above steps d~i to complete the dropping operation of a carrier bin, and then the carrier bin gripper on the three-axis moving module unloads the materials;

[0072] Repeat the above steps d~j to complete the dropping of all samples.

[0073] The above-described embodiments are only a preferred solution of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A cell suspension droplet-slicing device, characterized in that, It includes a vehicle bin (1), a glass slide carrier (2), a loading module (3), a vehicle grabbing module (4), a vehicle transfer line (5), a dropper protection area (6), a dropper partition and tilting module (7), a sample tube storage area (8), a barcode scanning device (9), a capping device (10), a dropper tip area (15), a three-axis moving module (13) and a frame (14); The vehicle bin (1) includes a loading vehicle bin and an unloading vehicle bin. The loading vehicle bin is used for loading and feeding the glass slide carriers without droppers, and the unloading vehicle bin is used for loading and unloading the glass slide carriers that have completed dropping. The unloading vehicle bin is placed on the lifting mechanism at the end of the vehicle transfer line (5); A plurality of glass slide placement grooves are provided on the glass slide carrier (2) for loading multiple glass slides. Long grooves (24) are respectively provided between adjacent glass slide placement grooves on the glass slide carrier (2); The loading module (3) is used for loading the vehicle bin filled with glass slide carriers without droppers; The vehicle grabbing module (4) is used for dialing the glass slide carriers (2) without droppers in the loading vehicle bin onto the vehicle transfer line (5); The vehicle transfer line (5) is used for transporting the glass slide carriers without droppers to the dropper protection area (6) for dropping, and transporting the glass slide carriers that have completed dropping into the unloading vehicle bin at the end of the vehicle transfer line (5); The dropper protection area (6) is located above the vehicle transfer line (5). Dripping holes are respectively opened above the outer shell of the dropper protection area (6) corresponding to the number and positions of the glass slides on the glass slide carrier; The dropper partition and tilting module (7) is arranged between the vehicle transfer lines (5) and inside the dropper protection area (6). It is composed of a lifting motor (71), a tilting motor (72), a guide rod (73), a sliding sleeve (74), a support plate (75), a rotating shaft pin (76), a vehicle guide post (77), a partition piece (78), and a turning plate (79). The lifting motor (71) drives the support plate (75) to lift along the guiding directions of the guide rod (73) and the sliding sleeve (74), and the tilting motor (72) drives the turning plate (79) to turn and retract along the rotating shaft pin (76) at the hinge joint of the turning plate (79) and the support plate (75). A plurality of partition pieces (78) are provided on the turning plate (79) corresponding to the plurality of long grooves (24) on the glass slide carrier; The sample tube storage area (8) correspondingly stores multiple rows of sample tubes; The barcode scanning device (9) realizes the scanning of information of different sample tubes to be retrieved; The capping device (10) realizes the automatic capping and opening of the sample tubes; The three-axis moving module (13) includes a moving module that can move in three directions of the X, Y, and Z axes. The execution end of the moving module includes a vehicle bin gripper (131), a sample tube gripper (132), and a pipette (133); The dropper tip area (15) is used for placing disposable dropper tips to be loaded on the tip of the pipette (133).

2. The cell suspension droplet-slicing device according to claim 1, characterized in that, Spring pieces (22) and dovetail groove structures (23) are respectively provided on each glass slide placement groove of the glass slide carrier (2), and a plurality of magnets N (25) are provided on the side of the glass slide carrier (2).

3. The cell suspension droplet-slicing device according to claim 2, characterized in that, A plurality of magnets S (11) are correspondingly arranged on the side of the vehicle compartment (1). The magnets S (11) are arranged in cooperation with the magnets N (25). Safety buckle structures are provided at both ends of the vehicle compartment. A vehicle compartment clamping opening (12) for clamping by the vehicle compartment clamping jaws (131) is formed on the vehicle compartment.

4. The cell suspension droplet-slicing device according to claim 1, characterized in that The feeding module (3) is composed of a linear slide (31), a pawl (32) and a vehicle compartment lifting table (33). The pawl (32) moves along the linear slide. The vehicle compartment lifting table (33) is arranged at the end of the linear slide (31). A sensor for detecting the position of the vehicle compartment is arranged on the linear slide. The lifting mechanism includes a lifting table and a lifting motor, and the lifting motor controls the linear lifting of the lifting table.

5. The cell suspension droplet-slicing device according to claim 1, characterized in that, The vehicle picking module (4) is composed of a hook piece (41), a hook piece lifting motor (42), a hook piece guiding slider (43), a hook piece moving motor (44) and a hook piece moving slide (45). The hook piece moving motor drives the hook piece moving slide (45) to move along the slide rail through a lead screw. The hook piece lifting motor (42) on the hook piece moving slide (45) drives the hook piece (41) to lift along the hook piece guiding slider (43). The vehicle picking module (4) can send the glass slide carrier (2) at the corresponding position in the vehicle compartment (1) to the vehicle transfer line (5).

6. The cell suspension droplet-slicing device according to claim 1, characterized in that, The vehicle transfer line (5) is composed of a transfer line motor (51), a rotating wheel (52) and a conveyor belt (53). The transfer line motor (51) drives the rotating wheel (52) to rotate, thereby driving the conveyor belt (53) to realize the transportation of the glass slide carrier (2) on the conveyor belt (53).

7. The cell suspension droplet-slicing device according to claim 1, characterized in that, A constant temperature and humidity control device (61) is connected to the dropping slide protection area (6). The dropping liquid hole is a square dropping hole.

8. The cell suspension droplet-slicing device according to claim 1, wherein The sample tube storage area (8) includes multiple rows of sample tube brackets (81) and guide grooves (83). Each sample tube bracket (81) can hold multiple sample tubes (82). The sample tube brackets (81) are pushed into the designated positions along the guide grooves (83).

9. The cell suspension droplet-slicing device according to claim 1, characterized in that, The code scanning device (9) includes a code scanning head moving module (91) and a code scanning head (92). The code scanning head (92) is driven by the code scanning head moving module (91) to move linearly to realize the information scanning of sample tubes at different positions.

10. The cell suspension droplet slicing device according to claim 1, characterized in that, The capping device (10) is located on the rack (14) beside the sample tube storage area. A plurality of capping devices (10) are arranged side by side to realize capping of multiple sample tubes at the same time. A plurality of pipettes (133) are arranged side by side to realize dropping of multiple pipette tips at the same time.

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