Novel inoculating needle

Abstract

The utility model discloses a novel inoculating needle which comprises a middle-section needle body, a needle tip is arranged at the front end of the middle-section needle body, a handle is arranged at the rear end of the middle-section needle body, and a barb is arranged on the needle tip. The convenience and the stability of inoculation operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inoculation needles, in particular to a new inoculation needle. Background Art

[0002] As a most basic and commonly used instrument in the microbial fermentation industry, an inoculation needle is an essential tool for picking mycelium blocks during inoculation. Inoculation needles are usually made of materials such as nickel-chromium alloy or platinum wire, and have characteristics such as high temperature resistance, corrosion resistance, and easy sterilization. One end of it is made into a sharp needle shape for picking and inoculating mycelium blocks, and the other end is usually wrapped with insulating material for safe holding by users.

[0003] Traditional nickel-chromium alloy inoculation needles (soft and thin), about 6 cm in length, disposable sterile inoculation needles (long, thin and soft), about 20 cm in length. Nickel-chromium alloy inoculation needles need to be flame sterilized every time they are used, and the usage frequency is very low; commonly used disposable sterile inoculation needles, but disposable sterile inoculation needles are generally suitable for inoculating open petri dishes, ampoule bottles, and test tubes with shallow depths. Disposable inoculation needles are long, thin and soft, and the needle tips of the inoculation needles are not stable enough, making it inconvenient to operate during inoculation on the inclined surface of the test tube. Summary of the Utility Model

[0004] The utility model provides a new inoculation needle to solve the problems that the above-mentioned disposable sterile inoculation needles are generally suitable for inoculating open petri dishes, ampoule bottles, and test tubes with shallow depths, the disposable inoculation needles are long, thin and soft, the needle tips of the inoculation needles are not stable enough, and it is inconvenient to operate during inoculation on the inclined surface of the test tube.

[0005] To solve the above technical problems, the technical solution provided by the utility model is: a new inoculation needle, including a middle section needle body, a needle tip is provided at the front end of the middle section needle body, a handle is provided at the rear end of the middle section needle body, and barbs are provided on the needle tip.

[0006] As an improvement, the tip of the needle tip is 0.5 cm away from the tip of the barb.

[0007] As an improvement, the barb gradually tapers from the tail end to the tip.

[0008] As an improvement, the length of the middle section needle body is 13 cm.

[0009] As an improvement, the length of the needle tip is 5 cm.

[0010] As an improvement, the length of the handle is 2 cm.

[0011] The advantages of the utility model are as follows: The utility model is an inoculation needle with barbs, which makes up for the shortcomings of the conventional disposable inoculation needles being long, thin and soft and inconvenient for inoculation on the inclined surface of the test tube, and improves the convenience and stability of the inoculation operation. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of the present utility model.

[0013] Figure 2 It is a schematic diagram of the barb structure of the present utility model.

[0014] Figure 3 It is a schematic diagram of the usage state of the present utility model.

[0015] As shown in the figure: 1. Middle section needle body; 2. Needle tip; 3. Handle; 4. Barb. Specific embodiments

[0016] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0017] Combined with the attached Figure 1 , Figure 2 , Figure 3 , a new inoculation needle, based on the disposable inoculation needles on the market, made of the polymer material polypropylene (PP), including a middle section needle body 1, with a needle tip 2 provided at the front end of the middle section needle body 1, a handle 3 provided at the rear end of the middle section needle body 1, and a barb 4 provided on the needle tip 2.

[0018] Among them, the inoculation needle of the present utility model is of the disposable inoculation needle type. The use of disposable inoculation needles greatly reduces the risk of cross - contamination during the experiment and improves the accuracy and reliability of the experimental results.

[0019] The tip of the needle tip 2 is 0.5 cm away from the tip of the barb 4.

[0020] The barb 4 gradually tapers from the tail end to the tip.

[0021] The length of the middle section needle body 1 is 13 cm.

[0022] The length of the needle tip 2 is 5 cm, and the needle tip 2 is used for picking and inoculating hyphal blocks.

[0023] The length of the handle 3 is 2 cm, and the handle 3 is made of insulating material for the user to hold safely.

[0024] Example 1: During the biochemical identification stage of Salmonella, inoculate the suspected colonies on the triple - sugar iron slant. The triple - sugar iron slant prepared in our own laboratory uses 18×180 mm glass test tubes, and the distance from the slant to the test tube mouth is relatively long. The traditional disposable sterile inoculation needle is relatively soft and it is very difficult to inoculate the colonies (or strains) into the slant. It is easy to slide on the slant. After adding a barb 4 at about 0.5 cm below the tip of the inoculation needle tip 2, the colonies can be accurately inoculated into the test tube.

[0025] In the specific implementation of the present utility model, ensure that the inoculation needle is in a sterile state before use to avoid introducing contamination during the operation. Adopt the slant inoculation method. Hold the handle by hand. After dipping the tip of the needle into the mycelium, the mycelium is located at the tip of the needle tip and is assisted by barbs to fix the mycelium for inoculation. Insert it into the bottom of the slant medium and gently slide it upward to the top of the slant. After use, the disposable inoculation needle should be properly disposed of in accordance with laboratory regulations to avoid environmental pollution caused by random disposal.

[0026] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A new inoculation needle, characterized in that: It includes a middle-section needle body (1), a needle tip (2) is provided at the front end of the middle-section needle body (1), a handle (3) is provided at the rear end of the middle-section needle body (1), and barbs (4) are provided on the needle tip (2).

2. The novel inoculation needle according to claim 1, characterized in that: The tip of the needle tip (2) is 0.5 cm away from the tip of the barb (4).

3. A new inoculation needle according to claim 1, characterized in that: The barb (4) gradually tapers from the tail end to the tip end.

4. A new inoculation needle according to claim 1, characterized in that: The length of the middle-section needle body (1) is 13 cm.

5. A new inoculation needle according to claim 1, characterized in that: The length of the needle tip (2) is 5 cm.

6. A new inoculation needle according to claim 1, characterized in that: The length of the handle (3) is 2 cm.

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