Antibiotic culture medium transfer pipette

Abstract

An antibiotic culture medium transfer pipette relates to the technical field of pipetting appliances and comprises a transfer pipette, a detachable heating patch is adhered to the outer wall of the transfer pipette, a rotating shaft is rotatably arranged in the transfer pipette, a plurality of stirring blades are arranged on the peripheral wall of the rotating shaft in a surrounding manner, and the adjacent stirring blades in the axial direction are arranged in a staggered manner. And a driving assembly for driving the rotating shaft to rotate is arranged outside the pipette. The utility model solves the problems that the agar culture medium in the prior art is viscous and easy to solidify, the culture medium solidifies when being transferred by a transfer pipette, the difference of the addition amount of the culture medium is too large, the temperature of the culture medium is easily reduced, the culture medium solidifies, a liquid inlet of the transfer pipette is blocked, and the addition amount of the culture medium is inconsistent.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid transfer instruments, in particular to an antibiotic culture medium pipette. Background Art

[0002] When testing antibiotics and microbial limits in the pharmaceutical field, culture medium needs to be added. The preparation level of the culture medium directly affects the test results of antibiotics. Generally, the amount of culture medium added to each plate is required to be basically consistent and as level as possible.

[0003] A patent with a publication number of CN214244418U is disclosed in the prior art. The solution includes a needle tube body placed at the mouth of the culture medium bottle, a right-angle glass conduit connected to the needle tube, a detachable rubber cap, and a conduit connecting the lower end of the needle tube to the bottom of the culture medium bottle at the upper end; the device for controlling the needle tube to absorb and discharge liquid can be a baffle or a valve arranged on the conduit to the bottom of the culture medium bottle. Its advantage is that this device can be directly installed on the culture medium bottle to transfer the same amount of culture medium to the culture dish without error. Since the capacity and thickness of the culture medium will affect the survival of the bacterial colony, this device can make the living environment of the bacterial colony in each culture dish the same, avoiding the error of artificially pouring the culture medium bottle, and controlling the variables to make the experiment more accurate. Moreover, the operation is particularly convenient. The principle is to use the pressure difference between the inside and the outside to absorb the liquid into the needle tube according to the scale, and then immediately push the partition, and then release the culture medium by opening the rubber head when ready to transfer.

[0004] As the existing devices including the above patents are used, the shortcomings of the technology are gradually exposed, which are mainly manifested in the following aspects:

[0005] First, because some agar culture media are viscous and easy to solidify, the culture media will solidify when being transferred with a pipette, resulting in large differences in the amount of culture media added and uneven culture media, which affects the test results and causes waste of manpower and financial resources.

[0006] Second, the existing pipette releases the colloidal liquid slowly, causing the culture medium temperature to drop and solidify, blocking the liquid inlet of the pipette, resulting in inconsistent amount of culture medium added, and the culture medium is stratified and uneven due to the long duration, affecting the test results, requiring manpower and material resources to be spent on testing, resulting in increased production costs.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model solves the problem that the agar culture medium in the traditional technology is viscous and easy to solidify, and the culture medium solidifies when being pipetted with a pipette, resulting in large differences in the amount of culture medium added, and easily causing the culture medium temperature to drop and solidify, blocking the liquid inlet of the pipette, resulting in inconsistent amounts of culture medium added.

[0009] In order to solve the above problems, the utility model provides the following technical solutions:

[0010] An antibiotic culture medium pipette comprises a pipette, a detachable heating patch is glued to the outer wall of the pipette, a rotating shaft is rotatably arranged inside the pipette, a plurality of stirring blades are arranged around the peripheral wall of the rotating shaft, and the stirring blades adjacent to each other along the axial direction are arranged in a staggered manner, and a driving component for driving the rotating shaft to rotate is arranged outside the pipette.

[0011] As an optimized solution, a transparent raised strip is fixedly connected to the outer wall of the pipette along the axial direction, and scale lines are arranged on the outer wall of the transparent raised strip.

[0012] As an optimized solution, the opposite side walls of the heating pad extend to both sides of the transparent raised strip respectively.

[0013] As an optimized solution, the extending direction of the stirring blade is parallel to the axial direction of the pipette.

[0014] As an optimized solution, the side wall of the stirring blade is in friction contact with the inner wall of the pipette.

[0015] As an optimized solution, the relative inner wall of the pipette is fixedly connected with a support sleeve through a rod body, and the rotating shaft is rotatably mounted on the support sleeve at a position close to the upper end.

[0016] As an optimized solution, the driving assembly includes a horizontal shaft mounted on the pipette for horizontal rotation, one end of the horizontal shaft extends into the pipette and is fixedly connected to a driving bevel gear, and the upper end of the rotating shaft is fixedly connected to a driven bevel gear meshing with the driving bevel gear.

[0017] As an optimized solution, the other end of the horizontal axis is located outside the pipette and is fixedly connected to a gear. A rack that slides vertically is provided outside the pipette, and the rack is meshed with the gear.

[0018] As an optimized solution, a support seat is fixedly connected to the outer wall of the pipette, a sliding hole for avoiding the rack is opened on the support seat, and the rack is slidably installed in the sliding hole.

[0019] As an optimized solution, the upper end of the rack is fixedly connected to a limit plate, and the lower end of the rack is fixedly connected to a pull ring.

[0020] As an optimized solution, the lower end of the pipette is provided with a conical liquid inlet and outlet, and the upper end of the pipette is provided with a liquid suction rubber tip.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] By sticking a heating sticker on the outer wall of the pipette, the agar medium can be heated by the heating sticker when taking liquid, which can reduce coagulation, ensure the normal pipetting and improve efficiency.

[0023] By rotating the stirring blade inside the pipette, the phenomenon of liquid solidification inside can be further reduced, ensuring that the liquid entering can be discharged normally;

[0024] The stirring blades are in frictional contact with the inner wall of the pipette, so that the liquid adhering to the inner wall of the pipette can be scraped off to prevent the liquid from adhering to the inner wall of the pipette;

[0025] By providing the pull ring, the operator can squeeze the liquid-absorbing rubber head with the thumb and index finger, and then use other fingers to hook the pull ring to drive the rack to move up and down, thereby driving the stirring blade to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] In the figure: 1-pipette; 2-transparent raised strip; 3-heating patch; 4-rotating shaft; 5-stirring blade; 6-support sleeve; 7-transverse shaft; 8-driving bevel gear; 9-driven bevel gear; 10-gear; 11-rack; 12-pull ring; 13-support seat; 14-limiting plate. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] like Figure 1As shown, the antibiotic culture medium pipette includes a pipette 1, a detachable heating patch 3 is glued to the outer wall of the pipette 1, a rotating shaft 4 is rotatably provided inside the pipette 1, a plurality of stirring blades 5 are arranged around the peripheral wall of the rotating shaft 4, and the stirring blades 5 adjacent to each other along the axial direction are staggered, and a driving component for driving the rotating shaft 4 to rotate is provided on the outside of the pipette 1.

[0031] A transparent raised strip 2 is fixedly connected to the outer wall of the pipette 1 along the axial direction, and scale lines are arranged on the outer wall of the transparent raised strip 2 .

[0032] The opposite side walls of the heating pad 3 extend to the two sides of the transparent raised strip 2 respectively.

[0033] The extending direction of the stirring blade 5 is parallel to the axial direction of the pipette.

[0034] The side wall of the stirring blade 5 is in frictional contact with the inner wall of the pipette 1 .

[0035] The opposite inner wall of the pipette 1 is fixedly connected with a support sleeve 6 through a rod body, and the rotating shaft 4 is rotatably mounted on the support sleeve 6 near the upper end.

[0036] The driving assembly includes a horizontal shaft 7 mounted on the pipette 1 for horizontal rotation. One end of the horizontal shaft 7 extends into the pipette 1 and is fixedly connected to a driving bevel gear 8. The upper end of the rotating shaft 4 is fixedly connected to a driven bevel gear 9 meshing with the driving bevel gear 8.

[0037] The other end of the horizontal axis 7 is located outside the pipette 1 and is fixedly connected with a gear 10 . A rack 11 that slides vertically is provided outside the pipette 1 , and the rack 11 is meshed with the gear 10 .

[0038] A support seat 13 is fixedly connected to the outer wall of the pipette 1. A sliding hole for avoiding the rack 11 is opened on the support seat 13, and the rack 11 is slidably installed in the sliding hole.

[0039] The upper end of the rack 11 is fixedly connected to a limit plate 14 , and the lower end of the rack 11 is fixedly connected to a pull ring 12 .

[0040] The lower end of the pipette 1 is provided with a conical liquid inlet and outlet, and the upper end of the pipette 1 is provided with a liquid suction rubber head.

[0041] The working principle of this device is:

[0042] By sticking the heating sticker 3 on the outer wall of the pipette 1, the heating sticker 3 is used to heat the agar medium when taking liquid, which can reduce coagulation, ensure the normal pipetting, and improve efficiency;

[0043] By rotating the stirring blade 5 inside the pipette 1, the phenomenon of liquid solidification inside can be further reduced, ensuring that the liquid entering can be discharged normally;

[0044] By making the stirring blade 5 rub against the inner wall of the pipette 1, the liquid adhering to the inner wall of the pipette 1 is scraped off, thereby preventing the liquid from adhering to the inner wall of the pipette 1.

[0045] By providing the pull ring 12, the operator can squeeze the liquid-absorbing rubber head with the thumb and index finger, and then use other fingers to hook the pull ring 12 to drive the rack 11 to move up and down, thereby driving the stirring blade 5 to rotate.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. Antibiotic medium pipette, Features: The invention comprises a pipette (1), the outer wall of which is glued with a detachable heating pad (3), a rotating shaft (4) is rotatably arranged inside the pipette (1), a plurality of stirring blades (5) are arranged around the peripheral wall of the rotating shaft (4), and the stirring blades (5) adjacent to each other in the axial direction are arranged in a staggered manner, and a driving component for driving the rotating shaft (4) to rotate is arranged outside the pipette (1).

2. The antibiotic medium pipette according to claim 1, Features: A transparent raised strip (2) is fixedly connected to the outer wall of the pipette (1) along the axial direction, and scale lines are provided on the outer wall of the transparent raised strip (2).

3. The antibiotic medium pipette according to claim 2, Features: The opposite side walls of the heating pad (3) extend to the two sides of the transparent raised strip (2) respectively.

4. The antibiotic medium pipette according to claim 3, Features: The extending direction of the stirring blade (5) is parallel to the axial direction of the pipette.

5. The antibiotic medium pipette according to claim 4, Features: The side wall of the stirring blade (5) is in frictional contact with the inner wall of the pipette (1).

6. The antibiotic medium pipette according to claim 5, Features: The opposite inner wall of the pipette (1) is fixedly connected to a support sleeve (6) via a rod body, and the rotating shaft (4) is rotatably mounted on the support sleeve (6) at a position close to the upper end.

7. The antibiotic medium pipette according to claim 6, Features: The driving assembly comprises a transverse shaft (7) mounted on the pipette (1) for horizontal rotation, one end of the transverse shaft (7) extending into the pipette (1) and fixedly connected to a driving bevel gear (8), and an upper end of the rotating shaft (4) is fixedly connected to a driven bevel gear (9) meshing with the driving bevel gear (8).

8. The antibiotic medium pipette according to claim 7, Features: The other end of the transverse axis (7) is located outside the pipette (1) and is fixedly connected to a gear (10). A rack (11) that slides vertically is provided outside the pipette (1), and the rack (11) is meshed with the gear (10).

9. The antibiotic medium pipette according to claim 8, Features: A support seat (13) is fixedly connected to the outer wall of the pipette (1), and a sliding hole for avoiding the rack (11) is opened on the support seat (13), and the rack (11) is slidably installed in the sliding hole.

10. The antibiotic medium pipette according to claim 9, Features: The upper end of the rack (11) is fixedly connected to a limiting plate (14), and the lower end of the rack (11) is fixedly connected to a pull ring (12).

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