A back-suction preventing expiration bottle for urea breath test

Abstract

The utility model relates to urea breath test exhale bottle technical field, especially for a kind of anti-suck back exhale bottle of urea breath test, including gas collecting bottle assembly, blowing pipe assembly, anti-suck back component and pressure relief component, the gas collecting bottle assembly includes gas collecting bottle bottle body, the upside of gas collecting bottle bottle body is threadedly connected with gas collecting bottle cap, the upside of gas collecting bottle assembly is equipped with the blowing pipe assembly passing through gas collecting bottle assembly, in the utility model, by the gas collecting bottle cap, blowing pipe body, valve body, compression spring, valve and soft rubber baffle being set, the device can be by the tensile force of compression spring to make valve body upside opening of valve seal, to prevent user inhale and cause carbon dioxide gas collector backflow, simultaneously by gas collecting bottle cap can the opening of gas collecting bottle bottle body seal, by gas collecting bottle cap cooperation valve, soft rubber baffle, carbon dioxide gas collector in the gas collecting bottle bottle body can be prevented from leaking, gas in the gas collecting bottle bottle body can also be prevented from escaping.

Description

Technical Field

[0001] This utility model relates to the technical field of urea exhalation test exhalation bottle, specifically an anti-backflow exhalation bottle for urea exhalation test. Background Technology

[0002] The urea breath test is a non-invasive method for detecting Helicobacter pylori infection, and the breath bottle is one of the key tools used in this test to collect and test breath samples.

[0003] Existing urea breath test kits consist of a gas collection bottle and a blow tube inserted into the bottle opening. The blow tube lacks anti-backflow or anti-reverse flow protection. If the user accidentally inhales, the toxic carbon dioxide collector from the gas collection bottle will inevitably be drawn back into their mouth, causing serious consequences. Furthermore, since the gas collection bottle and blow tube are not fixed together, if the user drops the bottle before or during exhalation due to hand tremors or instability, the carbon dioxide collector will leak, preventing exhalation and interrupting the test. If the user does not promptly hand the gas collection bottle to the testing personnel after exhalation, the gas inside will escape, also interrupting the test. Therefore, to address these issues, a backflow-preventing breath test kit for urea breath testing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an anti-backflow exhalation bottle for urea exhalation experiments, in order to solve the problems that some existing urea exhalation bottles may cause users to accidentally inhale carbon dioxide collecting agent, and that the carbon dioxide collecting agent in the collecting bottle is prone to leakage, and the gas blown into the collecting bottle by the user is also prone to escape.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A backflow-preventing exhalation bottle for a urea exhalation test includes a gas collecting bottle assembly, a blowing tube assembly, an anti-backflow assembly, and a pressure relief assembly. The gas collecting bottle assembly includes a bottle body, with a bottle cap threadedly connected to the upper side of the bottle body. A blowing tube assembly is provided on the upper side of the gas collecting bottle assembly, passing through it. The blowing tube assembly includes a blowing tube body that passes through and is fixedly connected to the bottle cap. A soft silicone tube opening is fixedly connected to the upper end of the blowing tube body. A drip chamber is provided below the blowing tube body, and the lower end of the drip chamber is fixedly connected to... The device has an exhaust pipe, and the middle part of the air blowing pipe assembly is provided with an anti-backflow component. The anti-backflow component includes a valve body fixedly connected to the lower end of the air blowing pipe body. The lower end of the valve body is fixedly connected to the drip chamber. A pair of limiting protrusions are fixedly connected to the lower inner wall of the valve body. A positioning ring is provided above the valve body and fixedly connected to the inner wall of the air blowing pipe body. A compression spring is fixedly connected to the lower side of the positioning ring. A valve located inside the valve body is fixedly connected to the lower end of the compression spring. A pair of limiting sliding shafts that are slidably connected to the valve body are fixedly connected to the upper side of the valve.

[0006] Preferably, the upper side of the gas collecting bottle assembly is provided with a pressure relief component passing through the gas collecting bottle assembly. The pressure relief component includes a U-shaped tube passing through the gas collecting bottle cap and fixedly connected to the gas collecting bottle cap. An external threaded sleeve fixedly connected to the outer side of the U-shaped tube and fixedly connected to the upper side of the gas collecting bottle cap is fixedly connected to the outer side of the external threaded sleeve. A soft rubber baffle is fixedly connected to the upper side of the external threaded sleeve, and an internal threaded cap is threadedly connected to the outer side of the external threaded sleeve.

[0007] Preferably, the soft rubber baffle has a cross-shaped cut in the middle, the lower side of the soft rubber baffle fits against the upper end of the U-shaped tube, and the soft rubber baffle is located between the external threaded sleeve and the internal threaded cap.

[0008] Preferably, the diameter of the valve is greater than the diameter of the upper opening and the lower opening of the valve body, and the diameter of the valve is smaller than the inner diameter of the valve body.

[0009] Preferably, the outer diameter of the compression spring is smaller than the upper opening diameter of the valve body, the limiting slide shafts are all located directly above the limiting protrusions, and the opposite sides of the two limiting slide shafts are in contact with the inner wall of the air blowing pipe body.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the device, consisting of a gas collecting bottle cap, an air blowing tube body, a valve body, a compression spring, a valve, and a soft rubber baffle, can seal the upper opening of the valve body using the tension of the compression spring. This prevents the user from inhaling air and causing the carbon dioxide collecting agent to flow back, thus avoiding the user from inhaling the carbon dioxide collecting agent into their mouth. Simultaneously, the air blowing tube body and the gas collecting bottle cap are fixedly connected. The gas collecting bottle cap seals the opening of the gas collecting bottle. If the user accidentally drops the gas collecting bottle, the gas collecting bottle cap, in conjunction with the valve and the soft rubber baffle, can prevent the carbon dioxide collecting agent inside the bottle from leaking. If the user does not promptly hand the gas collecting bottle over to the inspector, the gas collecting bottle cap, valve, and soft rubber baffle can also prevent the gas inside the bottle from escaping. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the air blowing pipe assembly of this utility model; Figure 4 This is a cross-sectional view of the anti-backflow component assembly of this utility model; Figure 5 This is a cross-sectional view of the pressure relief component of this utility model; Figure 6 This is a schematic diagram of the installation structure of the soft rubber baffle of this utility model.

[0012] In the diagram: 1. Gas collecting bottle assembly; 11. Gas collecting bottle body; 12. Gas collecting bottle cap; 2. Air blowing pipe assembly; 21. Air blowing pipe body; 22. Soft silicone tube opening; 23. Drip funnel; 24. Exhaust pipe; 3. Anti-backflow assembly; 31. Valve body; 32. Limiting protrusion; 33. Positioning ring; 34. Compression spring; 35. Valve; 36. Limiting slide shaft; 4. Pressure relief assembly; 41. U-shaped tube; 42. External threaded sleeve; 43. Soft rubber baffle; 44. Internal threaded cap. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0015] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0016] Please see Figure 1-6 This utility model provides a technical solution: A backflow prevention exhalation bottle for a urea exhalation test includes a gas collection bottle assembly 1, an exhalation tube assembly 2, an anti-backflow assembly 3, and a pressure relief assembly 4. The gas collection bottle assembly 1 includes a gas collection bottle body 11, with a gas collection bottle cap 12 threadedly connected to the upper side of the gas collection bottle body 11. An exhalation tube assembly 2 is provided on the upper side of the gas collection bottle assembly 1, passing through the gas collection bottle assembly 1. The exhalation tube assembly 2 includes an exhalation tube body 21 that passes through and is fixedly connected to the gas collection bottle cap 12. A soft silicone tube opening 22 is fixedly connected to the upper end of the exhalation tube body 21, and a dripping funnel 23 is provided below the exhalation tube body 21. An exhaust tube is fixedly connected to the lower end of the dripping funnel 23. The middle part of the air blowing pipe assembly 2 is provided with an anti-backflow assembly 3. The anti-backflow assembly 3 includes a valve body 31 fixedly connected to the lower end of the air blowing pipe body 21. The lower end of the valve body 31 is fixedly connected to the dripping bucket 23. A pair of limiting protrusions 32 are fixedly connected to the lower inner wall of the valve body 31. A positioning ring 33 is fixedly connected to the upper part of the valve body 31 and to the inner wall of the air blowing pipe body 21. A compression spring 34 is fixedly connected to the lower side of the positioning ring 33. A valve 35 located inside the valve body 31 is fixedly connected to the lower end of the compression spring 34. A pair of limiting sliding shafts 36 that are slidably connected to the valve body 31 are fixedly connected to the upper side of the valve 35.

[0017] A pressure relief assembly 4 is provided on the upper side of the gas collecting bottle assembly 1, passing through the gas collecting bottle assembly 1. The pressure relief assembly 4 includes a U-shaped tube 41 that passes through and is fixedly connected to the gas collecting bottle cap 12. An external threaded sleeve 42 that is fixedly connected to the outer side of the U-shaped tube 41 and fixedly connected to the upper side of the gas collecting bottle cap 12 is fixedly connected to the outer side of the external threaded sleeve 42. A soft rubber baffle 43 is fixedly connected to the upper side of the external threaded sleeve 42. An internal threaded cap 44 is threadedly connected to the outer side of the external threaded sleeve 42. The air pressure in the U-shaped tube 41 can cause the soft rubber baffle 43 to deform to a certain extent, and the gas can overflow from the cut of the soft rubber baffle 43, thus relieving pressure. A cross-shaped cut is provided in the middle of the soft rubber baffle 43. The lower side of the soft rubber baffle 43 fits against the upper end of the U-shaped tube 41. The soft rubber baffle 43 is located between the external threaded sleeve 42 and the upper side of the gas collecting bottle cap 12. Between the internal threaded caps 44, the device can be sealed by the external threaded sleeve 42 to prevent leakage of gas and carbon dioxide collecting agent; the diameter of valve 35 is larger than the diameter of the upper opening and the lower opening of valve body 31, and the diameter of valve 35 is smaller than the inner diameter of valve body 31. The tension of compression spring 34 causes valve 35 to seal the upper opening of valve body 31, thereby preventing the backflow of carbon dioxide collecting agent caused by the user inhaling air; the outer diameter of compression spring 34 is smaller than the diameter of the upper opening of valve body 31. The limiting slide shafts 36 are all located directly above the limiting protrusions 32. The opposite sides of the two limiting slide shafts 36 are in contact with the inner wall of the blowing pipe body 21. The limiting slide shafts 36 can ensure that valve 35 moves vertically downward, and the limiting protrusions 32 can prevent the lower end of valve 35 from sealing the lower opening of valve body 31.

[0018] Workflow: Before use, check that the device is intact. If intact, medical personnel can unscrew the gas collecting bottle cap 12 on the upper side of the gas collecting bottle body 11, add an appropriate amount of carbon dioxide gas collecting agent into the gas collecting bottle body 11, and then screw the gas collecting bottle cap 12 back on. Then, the medical personnel unscrew the inner thread cap 44 on the outside of the outer threaded sleeve 42 and hand the device to the user. The user can open their mouth and hold the soft silicone tube opening 22. The flexible soft silicone tube opening 22 allows the user to blow air in a comfortable position. When the user blows air, the air pressure in the blowing tube body 21 can cause the valve 35 inside the valve body 31 to move down, positioning the device. The compression spring 34, fixed by ring 33, is stretched, which opens the upper opening of valve body 31. The limiting slide shaft 36 ensures the valve 35 moves vertically downwards, and the limiting protrusion 32 prevents the lower end of valve 35 from sealing the lower opening of valve body 31. At this time, gas can pass through valve body 31 into drip chamber 23 and through exhaust pipe 24 into gas collecting bottle body 11. The gas can then contact the carbon dioxide collecting agent for experimentation. Air inside gas collecting bottle body 11 can be discharged through U-shaped tube 41. After air enters gas collecting bottle body 11, the air pressure inside U-shaped tube 41 can cause the soft rubber baffle to... The device 43 undergoes a certain degree of deformation, allowing gas to overflow from the cut in the soft rubber baffle 43. Pressure relief is achieved through the soft rubber baffle 43. The curved structure of the U-shaped tube 41 prevents the carbon dioxide collector from splashing out of the U-shaped tube 41 during user exhalation. After the user finishes exhaling, the device is handed over to medical personnel, who then tighten the external threaded sleeve 42 to seal the device and prevent gas and carbon dioxide collector leakage. The device can also use the tension of the compression spring 34 to seal the upper opening of the valve body 31 with the valve 35, thus preventing the carbon dioxide collector from overflowing due to user inhalation. The device prevents users from inhaling the carbon dioxide collector back into their mouths. The blowing tube body 21 and the gas collecting bottle cap 12 are fixedly connected, sealing the opening of the gas collecting bottle body 11. If a user accidentally drops the gas collecting bottle body 11, the cap 12, valve 35, and soft rubber baffle 43 prevent leakage of the carbon dioxide collector inside. Furthermore, if the user does not promptly hand the gas collecting bottle over to the inspector, the cap 12, valve 35, and soft rubber baffle 43 also prevent the gas from escaping from the gas collecting bottle body 11.

[0019] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A backflow prevention exhalation bottle for a urea exhalation test, comprising a gas collection bottle assembly (1), an exhalation tube assembly (2), an anti-backflow assembly (3), and a pressure relief assembly (4), characterized in that: The gas collecting bottle assembly (1) includes a gas collecting bottle body (11), with a gas collecting bottle cap (12) threadedly connected to the upper side of the gas collecting bottle body (11). A blowing pipe assembly (2) is provided on the upper side of the gas collecting bottle assembly (1), passing through the gas collecting bottle assembly (1). The blowing pipe assembly (2) includes a blowing pipe body (21) passing through and fixedly connected to the gas collecting bottle cap (12). A soft silicone tube opening (22) is fixedly connected to the upper end of the blowing pipe body (21). A dripping funnel (23) is provided below the blowing pipe body (21), and an exhaust pipe (24) is fixedly connected to the lower end of the dripping funnel (23). An anti-backflow component is provided in the middle of the blowing pipe assembly (2). (3) The anti-backflow assembly (3) includes a valve body (31) fixedly connected to the lower end of the air blowing pipe body (21). The lower end of the valve body (31) is fixedly connected to the dripping bucket (23). A pair of limiting protrusions (32) are fixedly connected to the lower inner wall of the valve body (31). A positioning ring (33) is fixedly connected to the upper part of the valve body (31) and to the inner wall of the air blowing pipe body (21). A compression spring (34) is fixedly connected to the lower side of the positioning ring (33). A valve (35) located inside the valve body (31) is fixedly connected to the lower end of the compression spring (34). A pair of limiting sliding shafts (36) that are slidably connected to the valve body (31) are fixedly connected to the upper side of the valve (35).

2. The anti-backflow exhalation bottle for a urea exhalation test according to claim 1, characterized in that: The gas collecting bottle assembly (1) has a pressure relief assembly (4) passing through it on its upper side. The pressure relief assembly (4) includes a U-shaped tube (41) passing through the gas collecting bottle cap (12) and fixedly connected to it. An external threaded sleeve (42) fixedly connected to the outer side of the U-shaped tube (41) and fixedly connected to the upper side of the gas collecting bottle cap (12) is fixedly connected to it. A soft rubber baffle (43) is fixedly connected to the upper side of the external threaded sleeve (42). An internal threaded cap (44) is threadedly connected to the outer side of the external threaded sleeve (42).

3. The anti-backflow exhalation bottle for a urea exhalation test according to claim 2, characterized in that: The soft rubber baffle (43) has a cross-shaped cut in the middle. The lower side of the soft rubber baffle (43) is attached to the upper end of the U-shaped tube (41). The soft rubber baffle (43) is located between the external threaded sleeve (42) and the internal threaded cover (44).

4. The anti-backflow exhalation bottle for a urea exhalation test according to claim 1, characterized in that: The diameter of the valve (35) is greater than the upper opening diameter and the lower opening diameter of the valve body (31), and the diameter of the valve (35) is smaller than the inner diameter of the valve body (31).

5. The anti-backflow exhalation bottle for a urea exhalation test according to claim 1, characterized in that: The outer diameter of the compression spring (34) is smaller than the upper opening diameter of the valve body (31). The limiting slide shafts (36) are all located directly above the limiting protrusions (32). The back sides of the two limiting slide shafts (36) are in contact with the inner wall of the air blowing pipe body (21).

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