A one-way valve device for gastrointestinal endoscope water-air pipeline

By designing a one-way valve device for the water-gas pipeline of gastrointestinal endoscopes, and utilizing a combination of a sealing plate and an exhaust pipe, the problem of residual water leakage in the water-gas pipeline was solved, achieving effective collection of water and separation of gas, reducing environmental pollution and facilitating cleaning.

CN224441305UActive Publication Date: 2026-07-03THE 900TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 900TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2025-02-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During gastroscopy and colonoscopy, residual water in the water-air pipeline is prone to leakage, causing environmental pollution. Traditional solutions have failed to completely solve this problem.

Method used

Design a one-way valve device for the water-gas pipeline of gastrointestinal endoscopes. It uses a first sealing plate and a second sealing plate that are opposite to each other to form a seal. When inserted, a gap is formed to allow water to enter the water tank, and gas is discharged through the exhaust pipe. A dust-blocking ring prevents dust from entering.

Benefits of technology

It effectively controls residual water in the water and gas pipeline from entering the water tank, avoids external pollution, and separates and treats gas and water, making it convenient for disassembly and cleaning of the device.

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Abstract

This utility model relates to a one-way valve device for a water-air tubing in gastroscopy and colonoscopy, comprising a water tank, a sealing tube at the top of the water tank, a uniformly distributed first sealing plate fixedly connected to the left inner end of the sealing tube, and a uniformly distributed second sealing plate fixedly connected to the right inner end of the sealing tube, and an exhaust assembly provided in the sealing tube. This utility model provides a one-way valve device for a water-air tubing in gastroscopy and colonoscopy, which seals the inside of the sealing tube by the cooperation of the opposing first and second sealing plates. When the water-air tubing is not inserted, the first and second sealing plates are pressed together by their own elasticity, forming a seal. When the water-air tubing is inserted, the first and second sealing plates are pushed apart to form a gap, allowing water to drip into the water tank through the gap, thereby effectively controlling residual water in the water-air tubing and allowing only water to enter the water tank, avoiding external contamination.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a one-way valve device for the water and gas pipeline of gastrointestinal endoscopes. Background Technology

[0002] Currently, in gastroscopy and colonoscopy examinations and treatments, the water-air tubing is an important component of the endoscopy system, used to provide water flushing and airflow to expand the chambers. After the procedure, a certain amount of water or gas often remains in the water-air tubing. Disconnecting the water-air tubing from the endoscopy equipment may cause residual water to leak onto the worktable or floor, affecting the hygiene of the working environment and increasing the amount of cleaning work.

[0003] Traditional solutions typically involve hanging the water vapor pipe end on a bracket near the water tank. While this avoids contact with the ground, it doesn't completely solve the problem of residual water leakage. Furthermore, continuous venting through the water vapor pipe can force water out of the pipe, further exacerbating environmental pollution. Therefore, designing an improved device that addresses these issues is of great significance.

[0004] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art.

[0005] Therefore, this utility model provides a one-way valve device for the water-air pipeline of gastrointestinal endoscopes. Summary of the Invention

[0006] To address the shortcomings of existing technologies and the inability to completely resolve the leakage of residual water, and to mitigate the potential for further water leakage if the water-air pipe continues to release air, thus exacerbating environmental pollution, this invention proposes a one-way valve device for the water-air pipe of gastrointestinal endoscopes.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The one-way valve device for the water-air pipeline of gastrointestinal endoscope according to this utility model includes a water tank, a sealing pipe is provided at the top of the water tank, a first sealing plate that is evenly distributed is fixedly connected to the left end of the inner side of the sealing pipe, a second sealing plate that is evenly distributed is fixedly connected to the right end of the inner side of the sealing pipe, and an exhaust component is provided in the sealing pipe.

[0008] Furthermore, the exhaust assembly includes an exhaust pipe, the inner wall of the sealing pipe has evenly distributed exhaust pipes, the bottom inner side of the sealing pipe is fixedly connected to a water hopper, and the outer top of the sealing pipe is fixedly connected to a dust-blocking ring.

[0009] Furthermore, a first sliding groove is provided on the right side of the inner side of the water tank, a limiting ring is slidably connected to the inner side of the first sliding groove, a first slot is provided on the inner side of the front end of the limiting ring, the limiting ring is slidably connected to the sealing tube, and the first slot is slidably connected to the sealing tube.

[0010] Furthermore, a second slot is provided on the rear side of the bottom end of the sealing tube, and the second slot is engaged with the limiting ring.

[0011] Furthermore, a second slide is provided on the left side of the first slide, a first slider is slidably connected to the inner side of the second slide, a second slider is fixedly connected to the top of the first slider, and a handle is fixedly connected to the top of the second slider.

[0012] Furthermore, the inner side of the second slider is slidably connected to left and right opposing slide rods, the outer side of the slide rods is fixedly connected to front and rear opposing fixing blocks, the rear end of the slide rods is fixedly connected to a spring, the spring is fixedly connected to the rear fixing block, and the spring is slidably connected to the slide rod.

[0013] Furthermore, a support ring is fixedly connected to the right side of the top inner side of the water tank, and the support ring is slidably connected to the delivery pipe.

[0014] Furthermore, a rubber layer is provided on the outer wall of the sealing tube.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The one-way valve device for the water-air tubing of gastrointestinal endoscopes described in this utility model seals the interior of the tubing by cooperating with a first and second sealing plate that are opposite each other. When the water-air tubing is not inserted, the first and second sealing plates are pressed together by their own elasticity, forming a seal. When the water-air tubing is inserted, the first and second sealing plates are pushed apart to form a gap, through which water drips into the water tank, effectively controlling residual water in the water-air tubing and allowing only water to enter the water tank, thus avoiding external contamination.

[0017] 2. The one-way valve device for the water-gas pipeline of gastrointestinal endoscopy described in this utility model allows water and gas inside the water-gas pipeline to be simultaneously discharged into the water tank by opening an exhaust pipe in the inner wall of the sealed tube, while the gas is transported out through the exhaust pipe. At the same time, the water is guided by the water hopper to prevent water from flowing into the exhaust pipe and being discharged with the gas. Meanwhile, the dust-blocking ring blocks the outlet at the top of the exhaust pipe to reduce the entry of dust.

[0018] 3. The one-way valve device for the water-air pipeline of gastrointestinal endoscope described in this utility model moves back and forth by means of a drive, thereby enabling quick disassembly of the entire device through the cooperation of the drive and the valve, facilitating cleaning and maintenance of the device.

[0019] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0020] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0021] In the accompanying drawings of the instruction manual:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic cross-sectional view of the water tank in this utility model. Figure 1 ;

[0024] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0025] Figure 4 This is a schematic cross-sectional view of the water tank in this utility model. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0027] Figure 6 yes Figure 5 Enlarged view of a section at point B in the middle;

[0028] Figure 7 This is a cross-sectional structural diagram of the sealing tube in this utility model;

[0029] Figure 8 This is a partial three-dimensional structural schematic diagram of the present invention.

[0030] The reference numerals used in the above figures are explained as follows:

[0031] 1. Water tank; 2. Sealing pipe; 21. First sealing plate; 22. Second sealing plate; 23. Conveying pipe; 24. Water hopper; 25. Exhaust pipe; 26. Dust-blocking ring; 3. First sliding groove; 31. Limiting ring; 32. First slot; 33. Second slot; 4. Second sliding groove; 41. First slider; 42. Second slider; 43. Handle; 44. Fixing block; 45. Sliding rod; 46. Spring; 5. Support ring. Detailed Implementation

[0032] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0035] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0036] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0037] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0038] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0039] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0040] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0041] Traditional solutions typically involve hanging the water vapor pipe end on a bracket near the water tank. While this avoids contact with the ground, it doesn't completely solve the problem of residual water leakage. If the water vapor pipe continues to release air, it may even force water out of the pipe, further exacerbating environmental pollution.

[0042] Therefore, this application provides a one-way valve device for a water-air pipeline in a gastrointestinal endoscope, including a water tank. A sealing tube is located at the top of the water tank. A uniformly distributed first sealing plate is fixedly connected to the left inner end of the sealing tube, and a uniformly distributed second sealing plate is fixedly connected to the right inner end of the sealing tube. The sealing tube is equipped with an exhaust assembly. The first and second sealing plates, positioned opposite each other, cooperate to seal the interior of the sealing tube. When the water-air pipeline is not inserted, the first and second sealing plates are held together by their own elasticity, forming a seal. When the water-air pipeline is inserted, the first and second sealing plates are pushed apart, creating a gap. Water drips into the water tank through this gap, effectively controlling residual water in the water-air pipeline and allowing only water to enter the water tank, thus preventing external contamination.

[0043] like Figures 1 to 8 As shown, the present invention discloses a one-way valve device for a gastrointestinal endoscope water-air pipeline, comprising a water tank 1, a sealing tube 2 at the top of the water tank 1, which supports and fixes the sealing tube 2; a uniformly distributed first sealing plate 21 is fixedly connected to the left inner side of the sealing tube 2, which supports and fixes the first sealing plate 21; a uniformly distributed second sealing plate 22 is fixedly connected to the right inner side of the sealing tube 2, which supports and fixes the second sealing plate 22; the first sealing plate 21 and the second sealing plate 22 are arranged crosswise, and both the first sealing plate 21 and the second sealing plate 22 are made of medical-grade silicone, thus giving them good flexibility and durability; and the sealing tube 2 is equipped with an exhaust assembly.

[0044] The exhaust assembly includes an exhaust pipe 25. The inner wall of the sealing pipe 2 has evenly distributed exhaust pipes 25. The air pressure inside the water tank 1 can be regulated through the exhaust pipes 25. The exhaust pipe 25 is equipped with a one-way gas valve in the middle, which is not explained in the prior art. The bottom of the inner side of the sealing pipe 2 is fixedly connected to a water hopper 24. The water hopper 24 is fixed by the sealing pipe 2. At the same time, the bottom of the water hopper 24 is lower than the bottom opening of the exhaust pipe 25, so as to prevent water on the inner wall of the water hopper 24 from entering the exhaust pipe 25. The top of the sealing pipe 2 is fixedly connected to a dust baffle ring 26. The dust baffle ring 26 is fixed by the sealing pipe 2 and protects the top of the exhaust pipe 25, reducing the entry of external dust into the exhaust pipe 25.

[0045] A first sliding groove 3 is provided on the right side of the inner side of the water tank 1. A limiting ring 31 is slidably connected to the inner side of the first sliding groove 3. The limiting ring 31 is limited by the first sliding groove 3, so that the limiting ring 31 can slide in the first sliding groove 3. A first slot 32 is provided on the inner side of the front end of the limiting ring 31. The limiting ring 31 is slidably connected to the sealing tube 2. The first slot 32 is slidably connected to the sealing tube 2, so that the sealing tube 2 can move up and down in the first slot 32.

[0046] A second slot 33 is provided on the rear side of the bottom end of the sealing tube 2. The second slot 33 engages with the limiting ring 31. When the sealing tube 2 is in a position other than the first slot 32, it will be limited by the second slot 33 and can only move back and forth, but cannot move up and down. Thus, the disassembly of the sealing tube 2 is controlled by the back and forth movement of the limiting ring 31.

[0047] A second slide groove 4 is provided on the left side of the first slide groove 3. A first slider 41 is slidably connected to the inner side of the second slide groove 4. The first slider 41 is limited by the second slide groove 4. A second slider 42 is fixedly connected to the top of the first slider 41. The second slider 42 is supported and fixed by the first slider 41. A handle 43 is fixedly connected to the top of the second slider 42. The handle 43 is fixed by the second slider 42. Thus, the second slider 42 can be moved synchronously by moving the handle 43.

[0048] The inner side of the second slider 42 is slidably connected to a left-right opposing slide rod 45. The outer side of the slide rod 45 is fixedly connected to a front-back opposing fixing block 44. The fixing block 44 is supported and fixed by the water tank 1, and the slide rod 45 is fixed by the fixing block 44. The slide rod 45 limits the movement of the second slider 42. The rear end of the slide rod 45 is fixedly connected to a spring 46. The spring 46 is fixedly connected to the rear fixing block 44 and slidably connected to the slide rod 45. The spring 46 pushes the second slider 42 forward with the rear fixing block 44 as the stress point.

[0049] A support ring 5 is fixedly connected to the upper right side of the inner side of the water tank 1. The support ring 5 is supported and fixed by the water tank 1. The support ring 5 is slidably connected to the delivery pipe 23. The support ring 5 limits the delivery pipe 23 and supports the sealing pipe 2 at the same time.

[0050] The outer wall of the sealing tube 2 is provided with a rubber layer. By providing a rubber layer on the outside of the sealing tube 2, the sealing performance between the sealing tube 2 and the water tank 1 can be increased firstly, and the wear between the limiting ring 31 and the sealing tube 2 can be reduced secondly.

[0051] Working principle: When the one-way valve device used for the gastrointestinal endoscope water-air tubing is in operation, after the gastrointestinal endoscope water-air tubing is disassembled, the connector is directly inserted through the sealing tube 2. During the process, the first sealing plate 21 and the second sealing plate 22 are squeezed to both sides. Then, the water and air in the gastrointestinal endoscope water-air tubing will flow into the water tank 1 through the drain hopper 24. The water will flow downward, while the gas will be discharged from the water tank 1 through the exhaust pipe 25 and the one-way valve in the exhaust pipe 25. When the sealing tube 2 is disassembled after use, simply push the handle 43 forward. The handle 43 will simultaneously drive the second slider 42, the first slider 41, and the limiting ring 31 to move backward in sync. The limiting ring 31 will drive the first slot 32 to move backward, so that the sealing tube 2 fits into the first slot 32, and the mutual locking between the limiting ring 31 and the second slot 33 is released. Thus, the sealing tube 2 can be pulled out from the inside of the first slot 32 for cleaning.

[0052] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A one-way valve device for a gastrointestinal scope water gas line, comprising: Includes a water tank (1), the top of the water tank (1) is provided with a sealing pipe (2), the left end of the inner side of the sealing pipe (2) is fixedly connected with a uniformly distributed first sealing plate (21), the right end of the inner side of the sealing pipe (2) is fixedly connected with a uniformly distributed second sealing plate (22), and the sealing pipe (2) is provided with an exhaust assembly.

2. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 1, characterized in that, The exhaust assembly includes an exhaust pipe (25), and the inner wall of the sealing pipe (2) is provided with evenly distributed exhaust pipes (25). A water hopper (24) is fixedly connected to the bottom inner side of the sealing pipe (2), and a dust-blocking ring (26) is fixedly connected to the outer side of the top end of the sealing pipe (2).

3. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 2, characterized in that, The water tank (1) has a first sliding groove (3) on the right side inside. A limiting ring (31) is slidably connected inside the first sliding groove (3). A first slot (32) is provided on the inner side of the front end of the limiting ring (31). The limiting ring (31) is slidably connected to the sealing tube (2). The first slot (32) is slidably connected to the sealing tube (2).

4. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 3, characterized in that, The sealing tube (2) has a second slot (33) on the rear side of its bottom end, and the second slot (33) engages with the limiting ring (31).

5. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 4, wherein A second slide (4) is provided on the left side of the first slide (3). A first slider (41) is slidably connected to the inner side of the second slide (4). A second slider (42) is fixedly connected to the top of the first slider (41). A handle (43) is fixedly connected to the top of the second slider (42).

6. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 5, wherein The second slider (42) is slidably connected to a left-right opposing slide rod (45) on its inner side. The slide rod (45) is fixedly connected to a front-back opposing fixing block (44) on its outer side. The rear end of the slide rod (45) is fixedly connected to a spring (46). The spring (46) is fixedly connected to the rear fixing block (44), and the spring (46) is slidably connected to the slide rod (45).

7. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 6, characterized in that A support ring (5) is fixedly connected to the right side of the top inner side of the water tank (1), and the support ring (5) is slidably connected to the conveying pipe (23).

8. A one-way valve device for a water and air line of a gastrointestinal scope according to claim 7, characterized in that, The outer wall of the sealing tube (2) is provided with a rubber layer.