Disposable bent straw

Abstract

The utility model relates to the technical field of medical instruments, and discloses a disposable elbow straw which comprises a hollow bag, the lower end of the hollow bag is fixedly connected with a straw body, the lower end of the straw body is fixedly connected with a bent hollow straw head, and the upper portion and the lower portion of the outer wall of one side of the bent hollow straw head are both fixedly connected with scrapers. When the disposable elbow suction tube is used, the nozzle part of the disposable suction tube is subjected to bending treatment, so that cells can be vertically blown and beaten, the problem that a certain blind area exists when a straight-head suction tube blows and beaten the cells is solved, and secondly, the nozzle part of the disposable suction tube adopts a flat plate design in combination with the working principle of a cell scraper, so that the cell blowing and beating efficiency is improved. Compared with the prior art, the cell scraping device is simple in structure and convenient to use, cells on the surface of a cell culture can be effectively scraped, the two improvements are combined, blowing and beating of the cells can be achieved, the cells firmly attached to the wall can be directly scraped, the consumable cost and the time cost are greatly saved, and the cell activity is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable elbow straw. Background Art

[0002] As we all know, elbow pipettes are one of the commonly used equipment for laboratory cell culture. In addition to being used to absorb and transfer liquids, they are also used to blow and mix cells, so they are also called "cell blowing tubes". They are widely used in scientific research experiments and also involve many fields such as medicine and biotechnology. In medical experiments, disposable pipettes are used in cell culture, virus isolation, drug screening and other processes, providing strong support for medical research and treatment.

[0003] In medical experiments, disposable pipettes are often used for cell culture. In addition to absorbing and transferring liquids, they are also used to blow and mix cells. As we all know, cell culture is a technical job. In cell culture, adherent cells are more prone to problems because of their cumbersome culture process. Since adherent cells grow on the wall and are contact inhibited, they are tightly attached to the wall after growing a bottle and are not easy to remove. At this time, trypsin must be used for digestion. The digested cells need to be blown down with a disposable pipette. Some cells are firmly attached to the wall, and a cell scraper is needed to separate the cells from the bottle wall. This step can easily cause damage to the cells. At present, the disposable pipette tips on the market all adopt a straight head design. When blowing cells, the pipette needs to constantly adjust the angle and blow hard, which not only causes greater mechanical damage to the cells, but also some dead corners cannot be blown. Each treatment will lose a part of the cells, which greatly increases the experimental cost and time cost. Therefore, it is imperative to improve and innovate the existing disposable pipettes. For this reason, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a disposable elbow pipette is proposed. When the disposable elbow pipette is used, the disposable pipette nozzle is curved so that the pipette can vertically blow cells, thereby solving the problem of a certain blind spot when blowing cells with a straight pipette. Secondly, in combination with the working principle of a cell scraper, a flat plate design is adopted for the disposable pipette nozzle, so that the pipette can effectively scrape cells on the surface of the cell culture. The above two improvements are combined, which can not only meet the needs of blowing cells, but also directly scrape cells that are firmly attached to the wall, thereby greatly saving consumables costs and time costs, and effectively protecting cell activity.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The disposable elbow straw comprises a hollow bag, the lower end of which is fixedly connected to a tube body, the lower end of which is fixedly connected to a curved hollow tube head, and the upper and lower parts of the outer wall of one side of the curved hollow tube head are fixedly connected to scrapers.

[0007] Through the above technical scheme, compared with the existing disposable elbow straw, when the disposable elbow straw is used, the hollow capsule helps to mix solvents, drugs and cell bodies. The tube body is made of polyethylene material, which is slender and soft. The tube body is translucent and bright white. The liquid fluidity of the tube wall is ideal and easy to control. The curved hollow tube head is convenient for entering and exiting trace or special containers, and every cell in the culture bottle can be quickly blown, with high practical performance.

[0008] Furthermore, the outer wall of the front end of the tube body is provided with a plurality of scale lines;

[0009] Through the above technical solution, the liquid absorption capacity can be easily checked through the scale lines.

[0010] Furthermore, a hollow groove is provided in the middle of the lower surface of the hollow sac;

[0011] Through the above technical solution, the hollow groove is convenient for use in conjunction with the hollow capsule.

[0012] Furthermore, a through groove is provided in the middle of the upper surface of the tube head;

[0013] Through the technical solution, the through groove is used to facilitate storage of liquid during inhalation.

[0014] Furthermore, a liquid suction port is provided in the middle of the outer wall of one side of the curved hollow tube head;

[0015] Through the above technical solution, liquid can be easily sucked through the liquid suction port.

[0016] Furthermore, the tube body is made of polyethylene material, which is slender and soft, the tube body is translucent and bright white, the fluidity of the tube wall liquid is ideal, and the controllability is strong;

[0017] The utility model has the following beneficial effects:

[0018] 1. Compared with the existing disposable elbow pipettes, the disposable elbow pipette proposed in the utility model can vertically blow cells by curving the nozzle of the disposable pipette, thereby solving the problem of certain blind spots in blowing cells with a straight pipette. Secondly, combined with the working principle of a cell scraper, a flat plate design is adopted for the nozzle of the disposable pipette, so that the cells on the surface of the cell culture can be effectively scraped. The combination of the above two improvements can not only meet the needs of blowing cells, but also directly scrape cells that are firmly attached to the wall, greatly saving the cost of consumables and time, and effectively protecting the activity of cells.

[0019] 2. Compared with the existing disposable elbow straws, the disposable elbow straw proposed by the utility model helps to mix solvents, drugs and cell bodies through the hollow capsule when used. The tube body is made of polyethylene material, which is slender and soft. The tube body is translucent and bright white. The liquid fluidity of the tube wall is ideal and easy to control. The curved hollow tube head is convenient for entering and exiting trace or special containers, and can quickly blow every cell in the culture bottle, with high practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric view of the disposable elbow straw proposed by the utility model;

[0021] Figure 2 This is an exploded schematic diagram of the disposable elbow straw proposed by the utility model;

[0022] Figure 3 This is a front view of the disposable elbow straw proposed by the utility model;

[0023] Figure 4 This is an axial cross-sectional view of the disposable elbow straw proposed by the utility model;

[0024] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Hollow sac; 2. Tube body; 3. Curved hollow tube head; 4. Scraper; 5. Scale line; 6. Empty slot; 7. Through slot; 8. Liquid suction port. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-5 , an embodiment provided by the utility model:

[0029] The disposable elbow straw comprises a hollow capsule 1, the lower end of which is fixedly connected to a tube body 2, the lower end of which is fixedly connected to a curved hollow tube head 3, and the upper and lower parts of the outer wall of one side of the curved hollow tube head 3 are fixedly connected to scrapers 4.

[0030] Compared with the existing disposable elbow straws, when the disposable elbow straw is used, the hollow capsule 1 is helpful to mix the solvent medicine and the cell body. The tube body 2 is made of polyethylene material, which is slender and soft. The tube body 2 is translucent and bright white. The liquid fluidity of the tube wall is ideal and easy to control. The curved hollow tube head 3 is convenient for entering and exiting trace or special containers, and can quickly blow every cell in the culture bottle, with high practical performance.

[0031] The outer wall of the front end of the tube body 2 is provided with multiple scale lines 5, through which the scale lines 5 are convenient for checking the liquid absorption capacity; a hollow groove 6 is opened in the middle of the lower surface of the hollow capsule 1, through which the hollow groove 6 is convenient for use with the hollow capsule 1; a through groove 7 is opened in the middle of the upper surface of the tube head 2, through which the liquid is convenient for storing during suction; a liquid suction port 8 is opened in the middle of the outer wall on one side of the curved hollow tube head 3, through which the liquid is convenient for absorbing the liquid; the tube body 2 is made of polyethylene material, which is slender and soft; the tube body 2 is translucent and bright white; the liquid fluidity of the tube wall is ideal and easy to control.

[0032] Working principle: When in use, the hollow capsule 1 is pressed to facilitate blowing cells through the curved hollow tube head 3, which solves the problem of certain blind spots in blowing cells with a straight pipette. The scraper 4 can directly scrape cells that are more firmly attached to the wall. By pressing the hollow capsule 1, the curved hollow tube head 3 can also be used to mix solvents, drugs and cell bodies and transfer them.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable elbow straw, comprising a hollow capsule (1), characterized in that: The lower end of the hollow sac (1) is fixedly connected to a tube body (2), the lower end of the tube body (2) is fixedly connected to a curved hollow tube head (3), and the upper and lower parts of the outer wall of one side of the curved hollow tube head (3) are fixedly connected to a scraper (4).

2. The disposable elbow straw according to claim 1, characterized in that: The outer wall of the front end of the tube body (2) is provided with a plurality of scale lines (5).

3. The disposable elbow straw according to claim 1, characterized in that: A hollow groove (6) is provided in the middle of the lower surface of the hollow bag (1).

4. The disposable elbow straw according to claim 1, characterized in that: A through groove (7) is provided in the middle of the upper surface of the tube body (2).

5. The disposable elbow straw according to claim 1, characterized in that: A liquid suction port (8) is provided in the middle of an outer wall of one side of the curved hollow pipe head (3).

6. The disposable elbow straw according to claim 1, characterized in that: The tube body (2) is made of polyethylene material.

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