Novel bacterial suspension coating device

Abstract

The utility model relates to the technical field of biological sample analysis, in particular to a novel bacterial suspension coating device. The device comprises a rack (1), and is characterized in that a coating rotating platform (2) is fixed on the rack (1), a culture dish (18) is placed on the coating rotating platform (2), a bacterial suspension sampling device (3) is fixed below the coating rotating platform (2), a coating device (4) is fixed on the coating rotating platform (2), a culture dish uncovering device (5) is fixed on one side of the coating device (4), and the culture dish uncovering device (5) is fixed on the other side of the coating device (4). The coating device (4) comprises a three-axis moving mechanism (19), a rotating module (6) is fixed on a Z axis (20) of the three-axis moving mechanism (19), and a clamping jaw (7) is fixed on the rotating module (6). The bacterial suspension coating device has the advantages of simple structure and convenience in use, and can be used for conveniently coating bacterial suspension on the culture dish so as to realize automatic coating detection.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample analysis, in particular to a novel bacterial suspension coating device. Background Technique

[0002] In hospital clinical and medical research tests, it is often necessary to collect and analyze biological samples of patients. Clinically, biological samples, especially liquid biological samples such as sputum, are first separated and cultured. The laboratory technician mixes the sample with digestive fluid and stirs for a certain time. Then the sputum sample becomes a homogenized sample, and the homogenized sample is streaked and inoculated onto a culture dish containing solid medium for separation and culture to obtain bacterial colonies, and further bacterial identification and drug sensitivity testing are carried out. In the past, manual detection was used. Manual detection has a large workload and is prone to causing bacterial infection to the detection personnel. Now, fully automatic coating instruments are gradually used clinically. It can stick filter paper containing a quantitative antibacterial drug onto a culture dish on the agar surface inoculated with the test bacteria. The drug in the paper diffuses in the agar, and as the diffusion distance increases, the concentration of the antibacterial drug decreases logarithmically, thus forming a concentration gradient around the paper to determine the sensitivity of the drug to bacteria. The most basic of all these detections is to coat the bacterial suspension of the homogenized sample onto a culture dish containing a medium. In the past, manual streaking and coating were used. Manual streaking has a large workload and is extremely prone to causing bacterial infection to the detection personnel. Therefore, it is very beneficial to invent a novel bacterial suspension coating device. Summary of the Invention

[0003] To solve the above problems, the utility model provides a novel bacterial suspension coating device, which coats the bacterial suspension on a culture dish to achieve automatic coating detection.

[0004] The technical solution adopted by the utility model is: it includes a frame 1, and is characterized in that: a coating rotating platform 2 is fixed on the frame 1, a culture dish 18 is placed on the coating rotating platform 2, a bacterial suspension sampling device 3 is fixed under the coating rotating platform 2, a coating device 4 is fixed on the upper surface of the coating rotating platform 2, a culture dish lid opening device 5 is fixed on one side of the coating device 4. The coating device 4 includes a three-axis moving mechanism 19, a rotating module 6 is fixed on the Z-axis 20 of the three-axis moving mechanism 19, and a claw 7 is fixed on the rotating module 6.

[0005] A preferred technical solution of the present utility model is as follows: The bacterial suspension sampling device 3 includes a support frame 8, on which a test tube rack 9 is fixed. The test tube rack 9 is provided with a rotating groove 10, and at the bottom of the rotating groove 10, there is a rotating gear 11, which is connected to the output shaft of a rotating motor 12. The petri dish opening device 5 includes a suction rod 21, and at the top of the suction rod 21, a suction cup 13 is fixed. The suction cup 13 is connected to a vacuum pump 14 through a pipeline. On one side of the test tube rack 9, there is a test tube transfer manipulator 15 and a trash bin 16. On one side of the test tube rack 9, there is a barcode scanner 17.

[0006] The present utility model has the advantages of simple structure and convenient use. It can conveniently coat the bacterial suspension on the petri dish to achieve automatic coating detection. Description of the Drawings

[0007] Figure 1 is a structural schematic diagram of the present utility model;

[0008] Figure 2 is a structural schematic diagram of the three-axis moving mechanism of the present utility model;

[0009] Figure 3 is a structural schematic diagram of the bacterial suspension sampling device of the present utility model;

[0010] Figure 4 is a structural schematic diagram of the petri dish opening device of the present utility model; Detailed Embodiments

[0011] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0012] As Figure 1 、 Figure 2 shown, the present utility model includes a frame 1, on which a coating rotating platform 2 is fixed. A petri dish 18 is placed on the coating rotating platform 2. Below the coating rotating platform 2, a bacterial suspension sampling device 3 is fixed. Above the coating rotating platform 2, a coating device 4 is fixed. On one side of the coating device 4, a petri dish opening device 5 is fixed. The coating device 4 includes a three-axis moving mechanism 19. On the Z-axis 20 of the three-axis moving mechanism 19, a rotating module 6 is fixed, and on the rotating module 6, a claw 7 is fixed. As Figure 3 shown, the bacterial suspension sampling device 3 includes a support frame 8, on which a test tube rack 9 is fixed. The test tube rack 9 is provided with a rotating groove 10, and at the bottom of the rotating groove 10, there is a rotating gear 11, which is connected to the output shaft of a rotating motor 12. As Figure 4As shown in the figure, the petri dish lid opening device 5 includes a suction rod 21, and a suction cup 13 is fixed at the top of the suction rod 21. The suction cup 13 is connected to a vacuum pump 14 through a pipeline. On one side of the test tube rack 9, there is a test tube transfer manipulator 15 and a garbage bin 16. On one side of the test tube rack 9, there is a barcode scanner 17.

[0013] The working process of the present utility model is as follows:

[0014] 1. Place the configured bacterial suspension test tube into the test tube rack 9;

[0015] 2. The rotating motor 12 on the test tube rack 9 drives the test tube rack to rotate;

[0016] 3. The barcode scanner 17 reads the relevant information of the bacterial suspension test tube;

[0017] 4. The coating rotating platform 2 rotates to transfer the petri dish 18 to the bacterial suspension coating station (coating rotating platform)

[0018] 5. The coating device 4 moves above the bacterial suspension test tube.

[0019] 6. The test tube clamping manipulator 22 clamps the suspension test tube; the claw 7 of the coating device grabs the cover of the bacterial suspension test tube with a swab to complete sampling.

[0020] 7. The test tube clamping manipulator 22 releases the bacterial suspension test tube, and the test tube transfer manipulator 15 clamps the bacterial suspension test tube and transfers it to the garbage bin 16 to complete the disposal of medical waste.

[0021] 8. The petri dish lid opening device 5 transfers the upper lid of the petri dish 18 through the suction cup 13.

[0022] 9. The coating device 4 adjusts its working angle through the rotating module 6 and transfers to above the petri dish to start coating and scribing.

[0023] 10. After the coating and scribing are completed, transfer the lid of the bacterial suspension test tube to above the garbage bin to complete the disposal of medical waste.

[0024] 11. The coating device 4 transfers the petri dish lid to the petri dish 18 through the suction cup 13 to complete closing the lid.

[0025] 12. The bacterial suspension linear module 23 moves one station, and steps 2 to 11 are cycled. Until the coating detection of all specimens is completed.

Claims

1. A novel bacterial suspension coating device, comprising a frame (1), characterized in that: A coating rotating platform (2) is fixed on the frame (1), a culture dish (18) is placed on the coating rotating platform (2), a bacterial suspension injection device (3) is fixed below the coating rotating platform (2), a coating device (4) is fixed above the coating rotating platform (2), a culture dish opening device (5) is fixed on one side of the coating device (4), and the coating device (4) comprises a three-axis moving mechanism (19), a rotating module (6) is fixed on the Z axis (20) of the three-axis moving mechanism (19), and a clamping claw (7) is fixed on the rotating module (6).

2. The novel bacterial suspension coating device according to claim 1, characterized in that: The bacterial suspension sampling device (3) comprises a support frame (8), a test tube rack (9) is fixed on the support frame (8), a rotating groove (10) is provided on the test tube rack (9), a rotating gear (11) is provided at the bottom of the rotating groove (10), and the rotating gear (11) is connected to the output shaft of the rotating motor (12).

3. The novel bacterial suspension coating device according to claim 1, characterized in that: The culture dish cover opening device (5) comprises a suction rod (21), a suction cup (13) is fixed on the top end of the suction rod (21), and the suction cup (13) is connected to a vacuum pump (14) through a pipeline.

4. The novel bacterial suspension coating device according to claim 2, characterized in that: A test tube transfer manipulator (15) and a trash bin (16) are provided on one side of the test tube rack (9).

5. The novel bacterial suspension coating device according to claim 2, characterized in that: A code scanning gun (17) is provided on one side of the test tube rack (9).

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