Bacteria taking device for bacteria regulating suspension
By designing a bacterial suspension extractor, the problem of colony contamination is solved, the accuracy and safety of colony concentration are achieved, and a colony extraction method is provided to prevent external bacterial contamination.
Patent Information
- Application Number
- CN202422513705.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-17
AI Technical Summary
In the prior art, during microbial culture and drug sensitivity testing, pure bacterial colonies collected with inoculation needles/inoculation loops/cotton swabs are easily contaminated by external bacteria, resulting in inaccurate colony concentrations.
A bacterial suspension extractor is designed, which includes a tube body and a colony needle. The colony needle can be extended and retracted out of the tube body by using a clamping seat and a button structure, and is sealed with a screw cap to prevent external bacterial contamination.
It effectively prevents the colony needle from being contaminated by external bacteria during use, ensures the accuracy and safety of the colony concentration, and facilitates the removal and use of the colony.
Smart Images

Figure CN223316683U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bacteria collectors, in particular to a bacteria collection device for adjusting bacterial suspension. Background Art
[0002] Pathogenic microorganisms are numerous and rapidly mutating, leading to an increasing number of clinical diseases caused by microbial infections. Laboratory departments often need to culture, identify, and perform drug susceptibility testing on isolated microorganisms, requiring the concentration of the bacterial solution used in these tests to be within a certain range. Currently, the commonly used method for microbial culture, identification, and drug susceptibility testing is to collect pure bacterial colonies in the inoculum using an inoculation needle, loop, or swab. However, these methods can easily lead to contamination of the collected colonies with external bacteria. Utility Model Content
[0003] The purpose of the utility model is to provide a bacteria suspension extractor to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bacterial suspension extractor, comprising a tube body and a colony needle, a fixed plate is provided inside the tube body, the top of the fixed plate is elastically connected to the inner wall of the top of the tube body by a first spring, the bottom of the fixed plate is fixedly connected to one end of two straight rods, a clamping seat for clamping one end of the colony needle is slidably connected to the straight rod, the top of the clamping seat is fixedly connected to one end of the connecting rod, the other end of the connecting rod passes through the fixed plate and is fixedly connected to an extension plate located at the bottom of the button, the top of the button extends out of the top of the tube body, and the bottom end of the tube body is detachably connected to a screw cap.
[0005] Preferably, the clamping seat includes a flat plate, both sides of the flat plate are fixedly connected with corresponding sliding sleeves, the sliding sleeves are slidably connected to the straight rod, the top of the flat plate is fixedly connected to one end of the connecting rod, a fixed block is fixed on the sliding sleeve on one side of the flat plate, one side of the fixed block is connected to the movable block through a second spring, one end of the colony needle is clamped and fixed between the movable block and the fixed block, and the other end of the colony needle is located inside the tube body.
[0006] Preferably, the sliding sleeve on the side of the flat plate away from the fixed block is fixedly connected to one end of the cross bar, and the movable block is slidably connected to the other end of the cross bar.
[0007] Preferably, a limiting head is provided at the other end of the straight rod.
[0008] Preferably, a first through hole is provided on the top of the tube body to facilitate the extension of the top of the button, the width of the first through hole is smaller than the width of the fixing plate, and a second through hole is provided on the fixing plate to facilitate the passage of the connecting rod.
[0009] Compared with the prior art, the beneficial effects of the present invention are:
[0010] 1. Before using this bacterial suspension extractor, first clamp the top of the colony needle between the movable block and the fixed block, and at the same time make the bottom of the colony needle located inside the tube body. When in use, press the top of the button with your finger to drive the bottom of the colony needle out of the bottom end of the tube body and into the colony bottle to absorb colonies. Then, screw the cap on the bottom end of the tube body to seal it, which protects the colony needle and prevents it from being contaminated by external bacteria.
[0011] 2. Since the pressure on the top of the colony needle clamped between the movable block and the fixed block is relatively small, the colony needle can be easily removed from between the movable block and the fixed block. Then, a rubber sleeve is put on one end of the colony needle, and the rubber sleeve is squeezed to squeeze out the colonies in the colony needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional view of the overall structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the colony needle installation structure of the utility model;
[0014] Figure 3 This is a schematic structural diagram of the second spring in a normal state of the present utility model;
[0015] Figure 4 This is a schematic diagram of the screw cap structure of the utility model;
[0016] Figure 5 It is a schematic diagram of the connection structure of the fixed block and the movable block of the utility model.
[0017] In the accompanying drawings, the following are marked: 1. tube body; 2. colony needle; 3. fixed plate; 4. first spring; 5. straight rod; 6. clamping seat; 7. connecting rod; 8. button; 9. extension plate; 10. screw cap; 11. flat plate; 12. sliding sleeve; 13. fixed block; 14. second spring; 15. movable block; 16. cross bar; 17. limit head. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.
[0019] Example: See Figure 1-5The utility model provides a technical solution: a bacterial suspension extractor, comprising a tube body 1 and a colony needle 2. A fixing plate 3 is provided inside the tube body 1. The top of the fixing plate 3 is elastically connected to the inner wall of the top of the tube body 1 by a first spring 4. The bottom of the fixing plate 3 is fixedly connected to one end of two straight rods 5. The straight rod 5 is slidably connected with a clamping seat 6 for clamping one end of the colony needle 2. The top of the clamping seat 6 is fixedly connected to one end of the connecting rod 7. The other end of the connecting rod 7 passes through the fixing plate 3 and is fixedly connected to an extension plate 9 at the bottom of the button 8. The top of the button 8 extends out of the top of the tube body 1. The bottom end of the tube body 1 is detachably connected with a screw cap 10, which is used to seal the bottom end port of the tube body 1, thereby protecting the colony needle 2 and preventing the colony needle 2 from being contaminated by external bacteria.
[0020] In this embodiment, the clamping seat 6 includes a flat plate 11, and corresponding sliding sleeves 12 are fixedly connected on both sides of the flat plate 11. The sliding sleeves 12 are slidably connected to the straight rod 5. The top of the flat plate 11 is fixedly connected to one end of the connecting rod 7. A fixed block 13 is fixed on the sliding sleeve 12 on one side of the flat plate 11. One side of the fixed block 13 is connected to the movable block 15 through a second spring 14. One end of the colony needle 2 is clamped and fixed between the movable block 15 and the fixed block 13, and the other end of the colony needle 2 is located inside the tube body 1. When the second spring 14 is in a normal state, the gap between the movable block 15 and the fixed block 13 is slightly smaller than the diameter of the colony needle 2, which facilitates the top end of the colony needle 2 to extend into the gap, thereby facilitating the clamping and fixing of the top end of the colony needle 2 by the movable block 15 and the fixed block 13.
[0021] In this embodiment, the sliding sleeve 12 on the side of the flat plate 11 away from the fixed block 13 is fixedly connected to one end of the cross bar 16, and the movable block 15 is slidably connected to the other end of the cross bar 16, so that the movable block 15 can move stably along the cross bar 16.
[0022] In this embodiment, a limiting head 17 is provided at the other end of the straight rod 5 to limit the movement of the sliding sleeve 12 on the straight rod 5 .
[0023] In this embodiment, a first through hole is provided on the top of the tube body 1 for the top of the button 8 to extend out. The width of the first through hole is smaller than the width of the fixing plate 3. The fixing plate 3 is provided with a second through hole for the connecting rod 7 to pass through.
[0024] Working principle: Before using this bacterial suspension extractor, first clamp the top of the colony needle 2 between the movable block 15 and the fixed block 13, and at the same time make the bottom end of the colony needle 2 located inside the tube body 1. When in use, press the top of the button 8 with your finger to drive the bottom end of the colony needle 2 to extend out of the bottom end port of the tube body 1 and extend into the colony bottle to absorb colonies. Then, screw the cap 10 to seal the bottom end port of the tube body 1 to protect the colony needle 2 and prevent it from being contaminated by external bacteria.
[0025] Since the pressure on the top of the colony needle 2 clamped between the movable block 15 and the fixed block 13 is relatively small, the colony needle 2 can be easily removed from between the movable block 15 and the fixed block 13, and then a rubber sleeve is put on one end of the colony needle 2, and the rubber sleeve is squeezed to squeeze out the colonies in the colony needle 2.
[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0027] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed or detachable connections, mechanical or electrical connections, and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
Claims
1. A bacterial suspension extractor, characterized in that: The invention comprises a tube body (1) and a colony needle (2), wherein a fixing plate (3) is provided inside the tube body (1), the top of the fixing plate (3) is elastically connected to the inner wall of the top of the tube body (1) through a first spring (4), the bottom of the fixing plate (3) is fixedly connected to one end of two straight rods (5), the straight rods (5) are slidably connected with a clamping seat (6) for clamping one end of the colony needle (2), the top of the clamping seat (6) is fixedly connected to one end of a connecting rod (7), the other end of the connecting rod (7) passes through the fixing plate (3) and is fixedly connected to an extension plate (9) located at the bottom of a button (8), the top of the button (8) extends out of the top of the tube body (1), and the bottom end of the tube body (1) is detachably connected to a screw cap (10).
2. A bacterial suspension extractor according to claim 1, characterized in that: The clamping seat (6) includes a flat plate (11), both sides of which are fixedly connected with corresponding sliding sleeves (12), the sliding sleeves (12) are slidably connected to the straight rod (5), the top of the flat plate (11) is fixedly connected to one end of the connecting rod (7), a fixed block (13) is fixed on the sliding sleeve (12) on one side of the flat plate (11), one side of the fixed block (13) is connected to the movable block (15) through a second spring (14), one end of the colony needle (2) is clamped and fixed between the movable block (15) and the fixed block (13), and the other end of the colony needle (2) is located inside the tube body (1).
3. A bacterial suspension extractor according to claim 2, characterized in that: The sliding sleeve (12) on the side of the flat plate (11) away from the fixed block (13) is fixedly connected to one end of the cross bar (16), and the movable block (15) is slidably connected to the other end of the cross bar (16).
4. A bacterial suspension extractor according to claim 3, characterized in that: The other end of the straight rod (5) is provided with a limiting head (17).
5. A bacterial suspension extractor according to claim 4, characterized in that: The top of the tube body (1) is provided with a first through hole for facilitating the top of the button (8) to extend out, the width of the first through hole is smaller than the width of the fixing plate (3), and the fixing plate (3) is provided with a second through hole for facilitating the connecting rod (7) to pass through.