Self-service preparation bag for expiration particle reagent
By designing a self-preparation bag for exhaled particulate reagents, the problem of difficulty in controlling the amount and time of water added manually is solved, enabling precise ratio and automatic mixing of test reagents, and ensuring the stability and reliability of test results.
Patent Information
- Application Number
- CN202521209237.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-06-13
AI Technical Summary
In existing technologies, it is difficult to precisely control the amount and time of water added manually in C-13 isotope respiration tests, which affects the concentration of the detection reagents and the accuracy and repeatability of the test results.
Design a self-preparation bag for exhaled particulate reagents. The test particles and purified water are separated into different chambers by a diaphragm. Automatic mixing is achieved by using a ruptured membrane, ensuring a fixed water volume and time control.
It achieves precise mixing of testing reagents, ensuring the stability and reliability of test results, improving testing efficiency and accuracy, and avoiding the influence of external contamination and chemical reactions.
Smart Images

Figure CN224236638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disposable medical supplies technology, specifically a self-preparation bag for exhaled granule reagents. Background Technology
[0002] In the field of medical testing, the C-13 isotope breath test plays a crucial role in the diagnosis of Helicobacter pylori infection as a non-invasive and convenient detection method. This method is based on the fact that Helicobacter pylori produces urease. When a patient orally ingests a test reagent containing C-13-labeled urea, the urease breaks down the urea, producing carbon dioxide containing C-13, which is exhaled. By collecting the patient's exhaled breath using a specific disposable breath test card and analyzing the C-13-labeled carbon dioxide content, the infection level of Helicobacter pylori in the patient can be accurately determined, providing crucial evidence for the diagnosis and treatment of gastrointestinal diseases.
[0003] Currently, in the actual operation of C-13 isotope breath tests, graduated bottles are typically used to hold the test reagent particles. During use, staff need to add water to the bottle to dissolve the reagent. However, this method has significant drawbacks: manually adding water makes it difficult to precisely control the amount; too much or too little water will affect the concentration of the test reagent, thus interfering with the accuracy of the test results. Utility Model Content
[0004] In view of the shortcomings of the existing technology, a self-preparation bag for exhaled particulate reagent is provided, which aims to solve the problem that the amount of water and the amount of test reagent particles cannot be accurately controlled, and can effectively control the time of drinking the reagent to ensure the accuracy of the test results.
[0005] To achieve the above and other related objectives, this utility model proposes a self-preparation bag for exhaled granule reagents, comprising:
[0006] Bag body;
[0007] A diaphragm is disposed within the cavity of the bag body, dividing the bag body into a first cavity and a second cavity;
[0008] The first cavity is used to hold the detection particles, and the second cavity is used to hold purified water;
[0009] A channel is provided on the diaphragm, and a rupture membrane is provided on the channel, the rupture membrane being able to rupture under pressure;
[0010] A suction nozzle is provided on the first cavity.
[0011] In one embodiment of the present invention, a valve membrane is provided on the diaphragm, the valve membrane is located in the second cavity, and the valve membrane is provided with an opening that communicates with the channel.
[0012] In one embodiment of this utility model, the edge of the valve membrane is bonded to the membrane surface of the diaphragm as a whole, and the ruptured membrane is located in the area covered by the valve membrane.
[0013] In one embodiment of this utility model, the opening is strip-shaped, the rupture membrane is strip-shaped, and the opening is arranged parallel to the rupture membrane.
[0014] In one embodiment of the present invention, the opening and the ruptured membrane are spaced apart in a projection plane in a first direction, the first direction being the membrane surface direction perpendicular to the membrane.
[0015] In one embodiment of this utility model, the edge of the diaphragm is provided with a flange, and the flange is bonded and fixed to the inner wall of the bag.
[0016] In one embodiment of the present invention, the outer wall of the bag body is provided with a pressing recessed area, which is arranged close to the outer wall of the second cavity.
[0017] In one embodiment of this utility model, the bag body is made of a transparent material.
[0018] By adopting the above technical solution, the technical effect of this utility model is as follows:
[0019] By placing the test particles and purified water into the first and second chambers of the bag respectively, the patient only needs to apply pressure to the bag to rupture the membrane, achieving automatic mixing of the purified water and test particles. This eliminates the need for manual water addition by staff, simplifying the reagent preparation process and making it particularly suitable for self-service testing scenarios, effectively improving testing efficiency.
[0020] The diaphragm divides the bag into independent cavities, ensuring a fixed amount of purified water and a precise ratio with the test particles. This avoids the problem of difficulty in controlling the water volume when adding water manually in existing technologies, ensuring a stable and consistent concentration of test reagents each time, laying the foundation for accurate detection.
[0021] The fixed water volume and closed mixing environment effectively mitigate the impact of water temperature fluctuations on reagent activity, allowing the test reagents to dissolve and mix under stable conditions. Furthermore, the rapid mixing of reagents after membrane rupture allows patients to quickly drink the solution, precisely controlling the drinking time and reducing deviations in test results due to time differences, significantly improving the accuracy and repeatability of test results.
[0022] The disposable sealed bag design prevents external impurities from contaminating the test reagents, ensuring their purity and effectiveness. Simultaneously, the enclosed mixing environment reduces contact between the reagents and outside air, preventing oxidation or other chemical reactions and further enhancing the safety and reliability of the testing process. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the planar structure of the self-preparation bag for exhaled particulate reagent in one embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram showing two states of the diaphragm and valve diaphragm after they are combined in one embodiment of the present invention;
[0026] Figure 3 This is a planar schematic diagram of the diaphragm in one embodiment of the present invention;
[0027] Figure 4 This is a plan view of the assembly of the diaphragm, valve membrane and bag body in one embodiment of the present invention. Detailed Implementation
[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.
[0029] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0030] In the actual operation of C-13 isotope breath test, graduated bottles are usually used to hold the test reagent particles. During use, staff need to add water to the bottle to dissolve the reagent. However, this method has significant drawbacks: firstly, it is difficult to precisely control the amount of water added manually; too much or too little water will affect the concentration of the test reagent, thus interfering with the accuracy of the test results; secondly, it is difficult to precisely control the timing of the patient's ingestion of the reagent, as different ingestion times will cause differences in the reaction process of the reagent in the body, affecting the consistency and repeatability of the test results. To address this, a self-preparation bag for breath reagent particles is proposed, comprising: a bag body 10; a diaphragm 20 disposed within the chamber of the bag body 10, dividing the bag body 10 into a first chamber 11 and a second chamber 12; the first chamber 11 is used to hold the test particles, and the second chamber 12 is used to hold purified water; a channel 21 is provided on the diaphragm 20, and a rupture membrane 22 is provided on the channel 21, the rupture membrane 22 being capable of rupturing under pressure; and a mouthpiece 111 is provided on the first chamber 11.
[0031] See Figure 1 In one embodiment, the rupture membrane 22 is thin and is attached to the channel 21, which is essentially a strip-shaped opening on the diaphragm 20. When the patient or medical staff squeezes the second cavity 12 of the bag body 10, the rupture membrane 22 can be broken by pure water, allowing pure water to enter the first cavity 11 and mix with the detection particles in the first cavity 11. The patient can then drink the mixed solution through the mouthpiece 111.
[0032] Since the timing of a patient's ingestion of the reagent is difficult to control precisely, different ingestion times can cause differences in the reaction process of the reagent in the body, affecting the consistency and repeatability of the test results. In this regard, in one embodiment, the user can attach a stopwatch to the outer wall of the bag 10. When the patient drinks the mixed liquid, the timer starts and the patient is reminded to perform a breath test after the time is up.
[0033] In one embodiment, the bag 10 is made of a transparent material, such as a transparent plastic film, which allows for accurate observation of whether the particulate reagent has completely dissolved. The purified water is safe from contamination, and the water temperature and volume meet the requirements, ensuring precise control in all aspects.
[0034] In one embodiment, the second cavity 12 of the bag 10 is filled with 80ml to 100ml of purified water as needed. When in use, the purified water in the second cavity 12 is squeezed into the first cavity 11.
[0035] In one embodiment, since the disposable preparation bag is stored at room temperature, it can ensure that the temperature of the purified water is at room temperature, thus eliminating the influence of existing factors that cause unstable water temperature.
[0036] In one embodiment, a valve membrane 23 is provided on the diaphragm 20, the valve membrane 23 is located inside the second cavity 12, and the valve membrane 23 is provided with an opening 231, the opening 231 being connected to the channel 21.
[0037] In the above embodiment, when the user squeezes the second cavity 12 of the bag body 10, purified water enters the channel 21 through the opening 231, and under water pressure, the rupture membrane 22 is broken, allowing purified water to enter the first cavity 11. Since there is tension between the membrane surface of the valve membrane 23 and the diaphragm 20, the membrane surface of the valve membrane 23 and the membrane surface of the diaphragm 20 are adsorbed together, preventing the purified water entering the first cavity 11 from flowing back into the second cavity 12, thus achieving a sealing effect.
[0038] In one embodiment, the edge of the valve membrane 23 is bonded to the membrane surface of the diaphragm 20 as a single unit, and the ruptured membrane 22 is located within the area covered by the valve membrane 23.
[0039] In one embodiment, the opening 231 is strip-shaped, the ruptured membrane 22 is strip-shaped, and the opening 231 and the ruptured membrane 22 are arranged parallel to each other.
[0040] In the above embodiments, the strip-shaped opening 231 and the ruptured membrane 22 have regular shapes, making them easier to process, shape, and assemble during the manufacturing process, effectively improving production efficiency and reducing production costs. At the same time, the standardized strip structure facilitates quality inspection and control, ensuring the performance consistency of each configuration bag, which is beneficial for the large-scale production and widespread application of the product.
[0041] In one embodiment, the opening 231 and the ruptured membrane 22 are spaced apart in a projection plane in a first direction, which is perpendicular to the membrane surface direction of the diaphragm 20.
[0042] In the above embodiment, the opening 231 and the ruptured membrane 22 are arranged at intervals. When pure water enters the first chamber 11, due to the tension between the membrane surface of the valve membrane 23 and the diaphragm 20, the membrane surface of the valve membrane 23 and the membrane surface of the diaphragm 20 are adsorbed together, preventing the pure water entering the first chamber 11 from flowing back into the second chamber 12, thus playing a sealing role. Referring to points a and b in Figure 2, the adsorption points between the membrane surface of the valve membrane 23 and the membrane surface of the diaphragm 20 can form a seal and prevent backflow.
[0043] In one embodiment, see Figure 2 and Figure 4 To achieve bonding between the diaphragm 20 and the bag body 10, the edge of the diaphragm 20 is provided with a flange 24, which is bonded and fixed to the inner wall of the bag body 10.
[0044] In one embodiment, the cross-section of the bag body 10 can be circular or rectangular, see reference. Figure 3 The unfolded outline of the diaphragm 20 matches the unfolded cross-sectional outline of the bag body 10. The diaphragm 20 and the inner cavity of the bag body 10 can be glued together by the processing equipment. Before glued and fixed, pure water is introduced into the bag body 10. After the diaphragm 20 and the bag body 10 are glued and fixed together, the reagent particles are introduced and then packaged to form the product.
[0045] In one embodiment, a disposable cap can be provided on the mouthpiece 111. After the purified water and reagent particles are mixed, the cap can be removed for consumption.
[0046] In one embodiment, see Figure 1 To facilitate medical staff or patients to press the bag 10, the outer wall of the bag 10 is provided with a pressing recess area 13, which is located close to the outer wall of the second cavity 12.
[0047] In the above embodiments, the design of the indented area 13 is ergonomic, providing users with a clear point of application. When mixing test reagents, the user's fingers can naturally fit into the indented area, facilitating precise pressure application to cause the rupture membrane 22 to break, thus achieving the mixing of purified water and test particles. Compared to the flat outer wall of the bag, this design significantly reduces the difficulty of operation, making it especially suitable for users of different ages and skill levels, effectively improving the convenience and efficiency of the testing operation.
[0048] The above description is only a preferred embodiment of this application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by replacing the above features with (but not limited to) technical features with similar functions disclosed in this application.
[0049] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.
Claims
1. A self-preparation bag for exhaled granule reagent, characterized in that, include: Bag body (10); A diaphragm (20) is disposed in the cavity of the bag body (10) and divides the bag body (10) into a first cavity (11) and a second cavity (12). The first cavity (11) is used to place the detection particles, and the second cavity (12) is used to place pure water; A channel (21) is provided on the diaphragm (20), and a rupture membrane (22) is provided on the channel (21), the rupture membrane (22) being able to rupture under pressure; A suction nozzle (111) is provided on the first cavity (11).
2. The self-preparation bag for exhaled particulate reagent according to claim 1, characterized in that: A valve membrane (23) is provided on the diaphragm (20), the valve membrane (23) is located in the second cavity (12), and an opening (231) is provided on the valve membrane (23), the opening (231) being connected to the channel (21).
3. The self-preparation bag for exhaled particulate reagent according to claim 2, characterized in that: The edge of the valve membrane (23) is bonded to the membrane surface of the diaphragm (20) as a whole, and the ruptured membrane (22) is located in the area covered by the valve membrane (23).
4. The self-preparation bag for exhaled particulate reagent according to claim 2, characterized in that: The opening (231) is strip-shaped, the ruptured membrane (22) is strip-shaped, and the opening (231) and the ruptured membrane (22) are arranged parallel to each other.
5. The self-preparation bag for exhaled particulate reagent according to claim 4, characterized in that: The opening (231) and the ruptured membrane (22) are spaced apart in the projection plane of a first direction, which is the direction perpendicular to the membrane surface of the diaphragm (20).
6. The self-preparation bag for exhaled particulate reagent according to claim 3, characterized in that: The edge of the diaphragm (20) is provided with a flange (24), which is bonded and fixed to the inner wall of the bag body (10).
7. The self-preparation bag for exhaled particulate reagent according to claim 1, characterized in that: The outer wall of the bag (10) is provided with a pressing recess area (13), which is arranged close to the outer wall of the second cavity (12).
8. The self-preparation bag for exhaled particulate reagent according to claim 1, characterized in that: The bag body (10) is made of transparent material.