A sterile culture bottle stopper puncture device

Abstract

This utility model discloses a sterile culture bottle stopper puncture device, including a fixed base with an outlet end and an inlet end. The outlet end is equipped with an air bladder with two openings, one of which is connected to the outlet end of the fixed base, and the other end is connected to a flow tube. The inlet end is equipped with a wide-mouth pointed structure for puncturing the culture bottle stopper. This utility model has a simple structure and reasonable design. By setting an air bladder and flow tube at the outlet end of the fixed base to control the flow rate, the smear operation can be simplified. The operator can directly operate the air bladder with their thumb and little finger while holding the culture bottle, thereby accurately controlling the outflow of sterile body fluid and improving the convenience of operation and the accuracy of outflow control.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a sterile culture bottle stopper puncture device. Background Technology

[0002] Smearing is a common laboratory procedure widely used in medicine and biology, especially in bacterial culture and detection in microbiology. The core purpose of smearing is to sample and spread substances such as cells and liquids onto a culture medium, providing support for further analysis and observation. Sterile culture flasks, as commonly used laboratory equipment, effectively ensure that liquids and culture media are not contaminated by external factors. To ensure the sterility of the internal environment of the culture flask, the mouth of the flask is usually sealed with a rubber stopper.

[0003] Traditional sterile liquid extraction methods typically employ syringes. In this method, the syringe needle punctures the rubber stopper of the culture flask, and the sterile liquid is extracted by manipulating the syringe plunger. While common, this method involves a sharp syringe needle, posing a risk of puncture wounds, especially under improper handling or stressful conditions. This not only increases the operator's occupational exposure risk but also may lead to contamination or leakage, affecting the accuracy and safety of experimental results. Therefore, a safer, more precise, and risk-reducing liquid extraction method is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a sterile culture bottle stopper puncture device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sterile culture bottle stopper puncture device, comprising a fixed base, the fixed base having an opposite outlet end and an inlet end, the outlet end having an air bladder, the air bladder having two openings, one of which is connected to the outlet end of the fixed base, and the other opening being connected to a flow tube, the inlet end having a wide-mouth pointed structure for puncturing the culture bottle stopper.

[0006] The above design simplifies the smear operation, allowing the operator to directly manipulate the balloon with their thumb and little finger while holding the culture bottle. This enables precise control of the outflow of sterile body fluids, improving operational convenience and the accuracy of outflow control, while reducing the operator's exposure risk.

[0007] Preferably, the wide-mouth pointed structure includes a cannula, and the end of the cannula is provided with a pointed tip.

[0008] Preferably, the tip is conical, and the tip is provided with a plurality of flow holes, the flow holes being connected to the insertion tube, and the insertion tube being connected to the liquid inlet end.

[0009] Preferably, the fixing base is provided with a plurality of barbs for fixing to the mouth of the culture bottle.

[0010] Preferably, the liquid outlet includes an extension section, which is formed by stretching the fixed base.

[0011] Preferably, the outlet of the flow tube is smaller than the inlet.

[0012] Preferably, the outlet of the flow tube is less than 2 mm.

[0013] Preferably, the diameters of both the extension section and the cannula are greater than 5 mm. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention installed on a culture flask; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0015] In the diagram: 1. Fixing base; 2. Liquid outlet; 3. Liquid inlet; 4. Air bladder; 5. Opening; 6. Wide-mouth pointed structure; 7. Insertion tube; 8. Point; 9. Flow hole; 10. Barb; 11. Extension section; 12. Flow tube; 13. Culture flask. Detailed Implementation

[0016] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., 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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0018] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0020] Example Please see Figure 1-3 As shown, the present invention provides a technical solution for a sterile culture bottle stopper puncture device: a sterile culture bottle stopper puncture device includes a fixed base 1, the fixed base 1 is provided with an outlet end 2 and an inlet end 3, the outlet end 2 is provided with an air bladder 4, the air bladder 4 is provided with two openings 5, one of the openings 5 ​​is connected to the outlet end 2 of the fixed base 1, and the other end is connected to a flow tube 12, and the inlet end 3 is provided with a wide-mouth pointed structure 6 for puncturing the stopper of the culture bottle 13.

[0021] The above design simplifies the smear operation, allowing the operator to directly operate the airbag 4 with their thumb and little finger while holding the culture bottle 13, thereby precisely controlling the outflow of sterile body fluids, improving the convenience of operation and the accuracy of outflow control, while reducing the operator's exposure risk.

[0022] The wide-mouth pointed structure 6 includes a cannula 7, with a pointed tip 8 at the end of the cannula 7 for pressing and piercing the rubber stopper of the culture flask 13.

[0023] In this embodiment, the tip 8 is conical, and several flow holes 9 are provided on the tip 8. The flow holes 9 are connected to the insertion tube 7, and the insertion tube 7 is connected to the inlet end 3. When the puncture device is inserted into the culture bottle 13 and the culture bottle 13 is inverted, the sterile body fluid will pass through the flow holes 9 and the insertion tube 7 in sequence into the air bag 4, and be in a state of waiting to flow out.

[0024] The mounting base 1 is also provided with several barbs 10 for fixing to the mouth of the culture flask 13.

[0025] The liquid outlet 2 includes an extension section 11, which is formed by stretching the fixed base 1 to form a stable flow channel and provide infusion protection for the airbag 4.

[0026] The diameter of the outlet of the flow tube 12 is smaller than that of the inlet, and the diameter of the outlet is preferably less than 2 mm, so as to prevent sterile liquid from flowing out directly when the culture bottle 13 is inverted, thereby improving the accuracy of subsequent operations.

[0027] Both the extension section 11 and the cannula 7 have a diameter greater than 5 mm. This design ensures that the sterile liquid can flow smoothly to the balloon 4 after entering the tip 8, which facilitates subsequent dripping operations.

[0028] The working principle of this utility model is as follows: During use, the operator first aligns the tip 8 with the rubber stopper of the culture bottle 13 and presses until it punctures the stopper. After puncture, the barb 10 hooks onto the mouth of the culture bottle 13, preventing the trocar from falling out. Then, the operator holds the body of the culture bottle 13 and inverts it. At this point, sterile liquid enters the trocar through the flow hole 9 of the tip 8 and flows along the insertion tube 7 into the balloon 4. The operator presses the balloon 4 firmly with their index finger and thumb to prevent backflow, while simultaneously pushing the balloon 4 with their thumb to allow the sterile liquid to flow out from the outlet of the flow tube 12, thus removing an appropriate amount of sterile liquid. This design makes the operation simpler and more precise, improving operational stability and control accuracy.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sterile culture bottle stopper puncture device, characterized in that: The device includes a fixed base with an opposite liquid outlet and a liquid inlet. The liquid outlet is equipped with an air bladder with two openings. One opening is connected to the liquid outlet of the fixed base, and the other opening is connected to a flow tube. The liquid inlet is equipped with a wide-mouth pointed structure for piercing the rubber stopper of the culture bottle.

2. The sterile culture bottle stopper puncture device according to claim 1, characterized in that: The wide-mouth pointed structure includes a cannula, the end of which is provided with a pointed tip.

3. The sterile culture bottle stopper puncture device according to claim 2, characterized in that: The tip is conical, and the tip is provided with several flow holes. The flow holes are connected to the insertion tube, and the insertion tube is connected to the liquid inlet.

4. The sterile culture bottle stopper puncture device according to claim 1, characterized in that: The mounting base is equipped with several barbs for fixing to the mouth of the culture flask.

5. The sterile culture bottle stopper puncture device according to claim 2, characterized in that: The liquid outlet includes an extension section, which is formed by stretching the fixed base.

6. The sterile culture bottle stopper puncture device according to claim 1, characterized in that: The outlet of the flow tube is smaller than the inlet.

7. The sterile culture bottle stopper puncture device according to claim 1, characterized in that: The outlet of the flow tube is less than 2mm.

8. The sterile culture bottle stopper puncture device according to claim 5, characterized in that: The diameter of both the extension section and the cannula is greater than 5 mm.

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