Disposable clinical examination suction tube
By designing a retractable straw structure and sealing components, the problems of space occupation and bending and breakage of traditional straws during transportation and carrying are solved, achieving flexible portability and leak-proof effects, ensuring the safety and accuracy of samples.
Patent Information
- Application Number
- CN202422664553.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The fixed length design of traditional disposable clinical testing straws takes up a large space during transportation and carrying, is prone to bending or breaking, is difficult to flexibly adapt to different portability needs, and there is a risk of sample leakage during transportation.
A retractable structure consisting of an air bag, an upper straw, a middle straw and a lower straw is designed. Quantitative sampling is achieved through a sealing ring and a scale. It is equipped with a sealing component and a leak-proof component to prevent sample leakage. The straw can be shortened in length during carrying and transportation to reduce the risk of damage.
The flexible adjustment of the length of the straw during transportation and carrying is achieved, which reduces the risk of bending or breaking, ensures that the sterile sample does not leak, reduces loss and replacement costs, and improves the safety and portability of operation.
Smart Images
Figure CN223351728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test straws, in particular to a disposable clinical test straw. Background Art
[0002] Clinical medical testing analyzes human samples (such as blood, urine, and body fluids) to obtain information about health status and disease, aiding diagnosis, monitoring treatment effectiveness, and disease prevention. During the testing process, sample purity and data accuracy are crucial, necessitating the use of disposable clinical testing straws. These straws effectively prevent cross-contamination and external contamination of samples, ensure aseptic operation, and precisely draw up minute amounts of liquid, thereby guaranteeing the reliability and accuracy of test results. This also reduces the risk of infection and improves operational safety.
[0003] When using traditional disposable clinical test pipettes, the operator first opens the straw packaging in a sterile environment to prevent the straw from contacting non-sterile surfaces. Next, the tip of the straw is immersed in the sample or reagent to be tested and slowly aspirated to the required amount, taking care to keep it vertical to prevent air bubbles from entering. After aspiration, the pipette is moved to the target container and the liquid is carefully squeezed out. After use, the straw should be immediately discarded in a medical waste container to avoid cross-contamination and infection risks. The entire process should ensure accurate aspiration, aseptic operation, and timely disposal to ensure the accuracy and safety of experimental results.
[0004] Traditional disposable clinical test straws are usually designed with a fixed length and hard plastic material. This design lacks flexibility because its fixed length takes up a large space during transportation and carrying, is prone to bending or breaking, and is difficult to flexibly adapt to different portability needs. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a disposable clinical test straw, which aims to improve the traditional disposable clinical test straw, because its fixed length takes up a large space during transportation and carrying, is prone to bending or breaking, and is difficult to flexibly adapt to different portability needs.
[0006] To achieve the above objectives, the present invention provides the following technical solutions: a disposable clinical test straw, comprising an airbag, an upper straw fixedly connected to the interior of the airbag, a middle straw fixedly connected to one end of the upper straw, a lower straw slidably connected to the interior of the middle straw, scales provided on the interiors of the upper, middle, and lower straws, a pipette tip fixedly connected to one end of the lower straw, a sealing assembly provided on one side of the outer wall of the lower straw, the sealing assembly being used to seal between the middle and lower straws;
[0007] The sealing assembly includes a sealing ring 1, the inner wall of which is fixedly connected to one side of the outer wall of the lower straw, and a sealing ring 2 is fixedly connected to the other side of the outer wall of the lower straw, and an annular groove 1 is opened inside the scale.
[0008] Furthermore, the outer wall of the lower straw is slidably connected to a sliding sleeve, the outer wall of the sliding sleeve is fixedly connected to an elastic harness, one end of the elastic harness is fixedly connected to a sealing sleeve, the inner wall of the sealing sleeve is provided with a leak-proof component, the leak-proof component is used to prevent liquid leakage, and the outer wall of the lower straw is fixedly connected to a limiting ring.
[0009] Furthermore, the leakage-proof component includes a sealing ring three, the outer wall of the sealing ring three is fixedly connected to the inner wall of the sealing sleeve, and an annular groove two is provided inside the suction head.
[0010] Furthermore, the sealing ring 1 and the sealing ring 2 are both slidably connected to the inner wall of the middle straw, and the sealing ring 1 and the sealing ring 2 are used to prevent liquid leakage between the lower straw and the middle straw.
[0011] Furthermore, the outer wall of the sealing ring 1 is slidably connected to the inside of the annular groove 1, and the outer wall of the sealing ring 2 is slidably connected to the inside of the annular groove 1.
[0012] Furthermore, the inner wall of the sealing sleeve is slidably connected to the outer wall of the suction head, and the sealing sleeve is used to protect the suction head.
[0013] Furthermore, the outer wall of the sealing ring 3 is slidably connected to the inside of the annular groove 2, and the sealing ring 3 is used to seal between the sealing sleeve and the suction head.
[0014] Furthermore, the limiting ring is arranged on one side of the outer wall of the sliding sleeve, and the limiting ring is used to limit the sliding sleeve.
[0015] The utility model has the following beneficial effects:
[0016] 1. In the utility model, the lower straw is first pulled to slide inside the upper straw and the middle straw, and then the lower straw is fixed and sealed in cooperation with the sealing ring 1, the sealing ring 2 and the annular groove 1. Finally, the air bag, the upper straw, the middle straw, the lower straw, the suction head and the scale on the outer wall are cooperated to realize quantitative sampling. This solves the problem that the straw occupies a large space during transportation and carrying, is prone to bending or breaking, and is difficult to flexibly adapt to different portability requirements. The straw is retractable, and the length of the straw can be shortened during carrying and transportation, reducing the risk of bending or breaking, protecting the sterility of the straw, reducing loss and waste, and thus reducing the replacement cost caused by damage.
[0017] 2. In the present invention, the sealing sleeve is first pulled to slide on the outer wall of the pipette tip, and then the sealing ring 3, the annular groove 2, the elastic harness and the sliding sleeve are coordinated to seal and release the pipette tip, thereby effectively preventing the sample from leaking during transportation, ensuring that it is not affected by external factors during movement, and avoiding contamination of other objects and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a disposable clinical test straw proposed by the utility model;
[0019] Figure 2 This is a schematic diagram of the air bag structure of a disposable clinical test straw proposed in the present invention;
[0020] Figure 3 This is a schematic diagram of the internal structure of the middle part of a disposable clinical test straw proposed by the present invention;
[0021] Figure 4 The utility model is a schematic diagram of the internal structure of a sealing sleeve of a disposable clinical test straw.
[0022] Legend:
[0023] 1. Air bag; 2. Upper straw; 3. Middle straw; 4. Scale; 5. Lower straw; 6. Suction head; 7. Sealing ring 1; 8. Sealing ring 2; 9. Annular groove 1; 10. Sliding sleeve; 11. Elastic harness; 12. Sealing sleeve; 13. Sealing ring 3; 14. Annular groove 2; 15. Limiting ring. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Reference Figure 1 - Figure 3The utility model provides an embodiment of a disposable clinical test straw, comprising an air bag 1, an upper straw 2 is fixedly connected to the inside of the air bag 1, one end of the upper straw 2 is fixedly connected to the middle straw 3, a lower straw 5 is slidably connected to the inside of the middle straw 3, and scales 4 are provided inside the upper straw 2, the middle straw 3 and the lower straw 5. The test solution is stored through the upper straw 2, the middle straw 3 and the lower straw 5, and quantitative measurement is performed at the same time. One end of the lower straw 5 is fixedly connected to a suction head 6, and a sealing component is provided on one side of the outer wall of the lower straw 5, which is used to seal between the middle straw 3 and the lower straw 5;
[0026] The sealing assembly includes a sealing ring 7, the inner wall of which is fixedly connected to one side of the outer wall of the lower straw 5. A sealing ring 2 is fixedly connected to the other side of the outer wall of the lower straw 5. An annular groove 9 is formed inside the scale 4. The sealing ring 7 and the sealing ring 2 slide inside the annular groove 9 to seal the lower straw 5 after it is extended and contracted, preventing leakage of the test solution and preventing external debris from entering the interior.
[0027] Reference Figure 1 and Figure 4 The outer wall of the lower suction pipe 5 is slidably connected with a sliding sleeve 10, and the outer wall of the sliding sleeve 10 is fixedly connected with an elastic harness 11. One end of the elastic harness 11 is fixedly connected with a sealing sleeve 12, and the sealing sleeve 12 is limited by the elastic harness 11 to prevent the sealing sleeve 12 from being lost or falling and being contaminated. The inner wall of the sealing sleeve 12 is provided with a leak-proof component, which is used to prevent liquid leakage. The outer wall of the lower suction pipe 5 is fixedly connected with a limiting ring 15, and the leak-proof component includes a sealing ring three 13. The outer wall of the sealing ring three 13 is fixedly connected to the inner wall of the sealing sleeve 12, and an annular groove two 14 is provided inside the suction head 6. The sealing sleeve 12 slides on the outer wall of the suction head 6, which can drive the sealing ring three 13 to slide inside the annular groove two 14, thereby The suction head 6 and the sealing sleeve 12 are sealed. The sealing ring 17 and the sealing ring 2 are both slidably connected to the inner wall of the middle suction pipe 3. The sealing ring 17 and the sealing ring 2 are used to prevent leakage between the lower suction pipe 5 and the middle suction pipe 3. The outer wall of the sealing ring 17 is slidably connected to the inside of the annular groove 19. The outer wall of the sealing ring 28 is slidably connected to the inside of the annular groove 19. The inner wall of the sealing sleeve 12 is slidably connected to the outer wall of the suction head 6. The sealing sleeve 12 is used to protect the suction head 6. The outer wall of the sealing ring 3 13 is slidably connected to the inside of the annular groove 2 14. The sealing ring 3 13 is used to seal between the sealing sleeve 12 and the suction head 6. The limiting ring 15 is provided on one side of the outer wall of the sliding sleeve 10 and is used to limit the sliding sleeve 10.
[0028] Working principle: When a disposable clinical test straw is needed, first pull the lower straw 5 to slide on the inner wall of the upper straw 2 and the middle straw 3, thereby driving the sealing ring 2 8 to slide. When the sealing ring 2 8 slides to the inside of the annular groove 1 9, the lower straw 5 can be limited. At the same time, the connection between the lower straw 5 and the middle straw 3 is sealed by the sealing ring 2 8 to prevent leakage. Then pull the sealing sleeve 12 to slide on the outer wall of the suction head 6, thereby pulling the sealing ring 3 13 out of the inside of the annular groove 2 14, so that The suction head 6 is exposed, and then the sliding sleeve 10 is pulled to slide on the outer wall of the lower suction tube 5, passing the sealing ring 1 7 and moving to the upper side of the lower suction tube 5. Then, the air bag 1 is pressed to cause it to deform and gradually flatten. Then, the suction head 6 is placed in the test liquid, and then the air bag 1 is released to drive the test liquid to be sucked into the lower suction tube 5, the middle suction tube 3 and the upper suction tube 2. During this process, the amount of medicine can be observed by the scale 4. Then, the sealing sleeve 12 is re-put on the outer wall of the suction head 6 and sealed with the sealing ring 3 13, thereby facilitating the transfer of the test liquid.
[0029] Finally, it should be noted that the above are only preferred embodiments of the present invention and are 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A disposable clinical test straw, comprising an air bag (1), characterized in that: The air bag (1) is fixedly connected to an upper suction pipe (2), one end of the upper suction pipe (2) is fixedly connected to a middle suction pipe (3), the middle suction pipe (3) is slidably connected to a lower suction pipe (5), the upper suction pipe (2), the middle suction pipe (3) and the lower suction pipe (5) are all provided with scales (4) inside, one end of the lower suction pipe (5) is fixedly connected to a suction head (6), and a sealing component is provided on one side of the outer wall of the lower suction pipe (5), and the sealing component is used to seal between the middle suction pipe (3) and the lower suction pipe (5); The sealing assembly includes a sealing ring (7), the inner wall of the sealing ring (7) is fixedly connected to one side of the outer wall of the lower suction pipe (5), the other side of the outer wall of the lower suction pipe (5) is fixedly connected to a sealing ring (8), and an annular groove (9) is provided inside the scale (4).
2. A disposable clinical test straw according to claim 1, characterized in that: The outer wall of the lower suction pipe (5) is slidably connected to a sliding sleeve (10), the outer wall of the sliding sleeve (10) is fixedly connected to an elastic harness (11), one end of the elastic harness (11) is fixedly connected to a sealing sleeve (12), the inner wall of the sealing sleeve (12) is provided with a leak-proof component, the leak-proof component is used to prevent liquid leakage, and the outer wall of the lower suction pipe (5) is fixedly connected to a limiting ring (15).
3. A disposable clinical test straw according to claim 2, characterized in that: The anti-leakage component comprises a sealing ring three (13), the outer wall of the sealing ring three (13) is fixedly connected to the inner wall of the sealing sleeve (12), and an annular groove two (14) is provided inside the suction head (6).
4. The disposable clinical test straw according to claim 1, characterized in that: The sealing ring 1 (7) and the sealing ring 2 (8) are both slidably connected to the inner wall of the middle suction pipe (3), and the sealing ring 1 (7) and the sealing ring 2 (8) are used to prevent liquid leakage between the lower suction pipe (5) and the middle suction pipe (3).
5. The disposable clinical test straw according to claim 1, characterized in that: The outer wall of the sealing ring 1 (7) is slidably connected to the inside of the annular groove 1 (9), and the outer wall of the sealing ring 2 (8) is slidably connected to the inside of the annular groove 1 (9).
6. The disposable clinical test straw according to claim 3, characterized in that: The inner wall of the sealing sleeve (12) is slidably connected to the outer wall of the suction head (6), and the sealing sleeve (12) is used to protect the suction head (6).
7. The disposable clinical test straw according to claim 3, characterized in that: The outer wall of the sealing ring three (13) is slidably connected to the inside of the annular groove two (14), and the sealing ring three (13) is used to seal between the sealing sleeve (12) and the suction head (6).
8. The disposable clinical test straw according to claim 2, characterized in that: The limiting ring (15) is arranged on one side of the outer wall of the sliding sleeve (10), and the limiting ring (15) is used to limit the sliding sleeve (10).