Gastrointestinal fluid drainage device

By using a spiral guide plate, an anti-displacement mechanism, and an anti-backflow mechanism, combined with a PTFE drainage tube and a gastrointestinal fluid collection device, the problems of easy displacement and blockage of the gastrointestinal fluid drainage device are solved, achieving continuity, stability, and safety of drainage.

CN224113058UActive Publication Date: 2026-04-14THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing gastrointestinal fluid drainage devices are prone to displacement due to gastrointestinal peristalsis, changes in body position, or improper operation, affecting the continuity and stability of drainage, and are also prone to blockage, resulting in mixed components of the drainage fluid.

Method used

It employs a spiral guide plate, an anti-displacement mechanism, and an anti-backflow mechanism, combined with a PTFE drainage tube and a gastrointestinal fluid collection device to prevent displacement and blockage, ensuring the continuity and safety of drainage.

Benefits of technology

It effectively prevents drainage tube displacement and blockage, improves the continuity and stability of drainage, ensures the purity and safety of drainage fluid, and provides a reliable auxiliary treatment method.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gastrointestinal fluid drainage device, which relates to the technical field of medical instruments and is characterized by comprising a drainage tube and a spiral flow deflector fixedly mounted in the drainage tube, an anti-displacement mechanism is arranged on the outer side of the drainage tube, and an anti-suck-back mechanism is arranged at the fluid outlet end of the drainage tube. A gastrointestinal fluid collecting device is arranged at a fluid outlet of the suck-back preventing mechanism, the shifting preventing mechanism comprises an elastic assembly and an inflation assembly, the elastic assembly comprises a basic ring fixedly installed at the fluid inlet end of the drainage tube, and a film cylinder is fixedly installed at one end of the basic ring; the device has the technical effects that the problems that the drainage tube is easy to displace and the drainage liquid is blocked are effectively solved by utilizing the anti-displacement mechanism, the spiral flow deflector and the smooth polytetrafluoroethylene drainage tube as well as the anti-suck-back mechanism and the gastrointestinal fluid collecting device, meanwhile, the drainage efficiency and safety are improved, the continuity and stability of the drainage process are ensured, and the drainage effect is good. And a more reliable and effective auxiliary means is provided for treatment and rehabilitation of the patient.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a gastrointestinal fluid drainage device. Background Technology

[0002] Current gastrointestinal fluid drainage devices do provide medical personnel with effective assistance to a certain extent, helping them to successfully complete the drainage of gastrointestinal fluid, which is crucial for the treatment and recovery of patients.

[0003] However, in practice, the drainage tube may shift position during drainage due to natural peristalsis of the gastrointestinal tract, frequent changes in patient position, or external forces such as improper nursing procedures. This displacement not only directly interferes with the continuity and stability of drainage, leading to a significant reduction in drainage efficiency, but may also cause the drainage position to deviate from the predetermined optimal point, resulting in mixed and impure gastrointestinal fluid. Therefore, we propose a novel gastrointestinal fluid drainage device. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a gastrointestinal fluid drainage device, which solves the problem that current gastrointestinal fluid drainage devices are prone to displacement due to gastrointestinal peristalsis, changes in body position, or improper operation, thus affecting the continuity and stability of drainage.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gastrointestinal fluid drainage device, comprising a drainage tube and a spiral guide plate fixedly installed inside the drainage tube, an anti-displacement mechanism being provided on the outside of the drainage tube, an anti-backflow mechanism being provided at the outlet end of the drainage tube, and a gastrointestinal fluid collection device being provided at the outlet of the anti-backflow mechanism.

[0008] The anti-displacement mechanism includes an elastic component and an inflatable component;

[0009] The elastic component includes a base ring fixedly installed at the liquid inlet end of the drainage tube, a diaphragm tube fixedly installed at one end of the base ring, and an outer cylinder fixedly connected to the drainage tube at the end of the diaphragm tube away from the base ring.

[0010] The inflation assembly includes an inflation tube connected to the inner cavity of the outer cylinder, and the inflation end of the inflation tube is threaded with a sealing cap.

[0011] Preferably, the drainage tube is made of smooth polytetrafluoroethylene material;

[0012] Both the base ring and the outer cylinder are made of silicone.

[0013] Preferably, the film tube is located between the base ring and the outer tube, wherein the film tube is made of latex film.

[0014] Preferably, the anti-backflow mechanism includes a mounting plate fixedly installed at the liquid outlet end of the drainage pipe, and a single-opening hinged cover is rotatably connected inside the mounting plate.

[0015] Preferably, the gastrointestinal fluid collection device includes a collection component, an odor absorption component, and a negative pressure component;

[0016] The collection assembly includes a guide tube threaded to the liquid outlet end of the mounting plate, and the liquid outlet end of the guide tube is snapped with a graduated gastrointestinal fluid collection bottle.

[0017] The odor-absorbing component includes an inclined tube that communicates with a graduated gastrointestinal fluid collection bottle. An activated carbon box is threadedly connected to the inclined upper end of the inclined tube, and an activated carbon plate is movably installed in the inner cavity of the activated carbon box.

[0018] The negative pressure assembly includes a negative pressure pipe threaded to the inner wall of the activated carbon box, and a negative pressure pump is fixedly installed at the upper inclined end of the negative pressure pipe.

[0019] Preferably, the guide tube is L-shaped, and the guide tube is connected to the inner cavity of the graduated gastrointestinal fluid collection bottle.

[0020] Preferably, the graduated gastrointestinal fluid collection bottle is made of highly transparent polypropylene.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0023] 1. This utility model effectively solves the problem of easy displacement of the drainage tube by setting an anti-displacement mechanism. Specifically, the anti-displacement mechanism includes an elastic component and an inflation component, wherein the base ring, the thin film tube, and the outer tube of the elastic component together form a stable support structure. The inflation component inflates the thin film tube with an appropriate amount of gas, causing it to expand and adhere tightly to the surrounding tissues of the patient, thus forming a tight fixation effect. This design not only effectively resists internal factors such as natural peristalsis of the gastrointestinal tract and frequent changes in patient position, but also prevents external forces such as improper nursing operations from affecting the position of the drainage tube, ensuring the continuity and stability of drainage and improving drainage efficiency.

[0024] 2. This invention effectively prevents drainage fluid blockage by incorporating a spiral guide vane and a smooth PTFE drainage tube. The spiral guide vane facilitates the smooth flow of gastrointestinal fluid, reducing the risk of blockage caused by viscous or solid residues. Simultaneously, the PTFE material has an extremely low coefficient of friction and excellent corrosion resistance, further reducing the likelihood of blockage. This design not only improves drainage smoothness but also reduces the operational difficulty for medical personnel during the drainage process, thereby increasing work efficiency.

[0025] 3. This invention further enhances the safety and reliability of the drainage process by incorporating an anti-backflow mechanism and a gastrointestinal fluid collection device. The single-opening cap in the anti-backflow mechanism automatically opens and closes under liquid pressure, effectively preventing external air or liquid from being drawn back into the drainage tube, thus avoiding the risk of cross-infection. Simultaneously, the collection component, odor-absorbing component, and negative pressure component in the gastrointestinal fluid collection device work together to efficiently collect and process the drainage fluid, improving its quality. Furthermore, the graduated gastrointestinal fluid collection bottle allows medical personnel to clearly observe the volume and color of the drainage fluid, providing important reference data for subsequent diagnosis and treatment. This design not only improves the safety of the drainage process but also provides a more reliable and effective auxiliary means for patient treatment and rehabilitation. Attached Figure Description

[0026] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0027] Fig. 2 This is a schematic diagram of the spiral guide vane structure of this utility model;

[0028] Fig. 3 This is a schematic diagram of the inflatable component structure of this utility model;

[0029] Fig. 4 This is a schematic diagram of the odor-absorbing component and negative pressure component of this utility model;

[0030] Fig. 5 This is a schematic diagram of the single-opening hinged cover structure of this utility model.

[0031] In the picture:

[0032] 1. Drainage tube;

[0033] 2. Spiral guide vanes;

[0034] 3. Anti-displacement mechanism;

[0035] 31. Elastic component; 311. Base ring; 312. Membrane tube; 313. Outer tube;

[0036] 32. Inflation assembly; 321. Inflation hose; 322. Sealing cap;

[0037] 4. Anti-backflow mechanism; 41. Mounting plate; 42. Single-opening hinged cover;

[0038] 5. Gastrointestinal fluid collection device;

[0039] 51. Collection assembly; 511. Drainage tube; 512. Graduated gastrointestinal fluid collection bottle;

[0040] 52. Odor-absorbing component; 521. Inclined tube; 522. Activated carbon box; 523. Activated carbon plate;

[0041] 53. Negative pressure assembly; 531. Negative pressure pipe; 532. Negative pressure pump. Detailed Implementation

[0042] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0043] This utility model provides a technical solution:

[0044] Please see Figs. 1-5 A gastrointestinal fluid drainage device includes a drainage tube 1 and a spiral guide plate 2 fixedly installed inside the drainage tube 1. An anti-displacement mechanism 3 is provided on the outside of the drainage tube 1. An anti-backflow mechanism 4 is provided at the outlet end of the drainage tube 1. A gastrointestinal fluid collection device 5 is provided at the outlet of the anti-backflow mechanism 4.

[0045] The anti-displacement mechanism 3 includes an elastic component 31 and an inflation component 32. Through the elastic component 31 and the inflation component 32, the membrane tube 312 is expanded by inflation to fit tightly against the surrounding tissue, forming a stable support, effectively preventing the drainage tube from shifting due to various factors, and ensuring the continuity and stability of drainage.

[0046] The elastic component 31 includes a base ring 311 fixedly installed at the liquid inlet end of the drainage tube 1. A diaphragm tube 312 is fixedly installed at one end of the base ring 311, and an outer tube 313 fixedly connected to the drainage tube 1 is fixedly installed at the other end of the diaphragm tube 312 away from the base ring 31. Through the fixed connection of the base ring 311, the diaphragm tube 312 and the outer tube 313, an inflatable elastic structure is formed to provide support for the anti-displacement mechanism 3, ensuring that the drainage tube 1 does not shift during the drainage process and ensuring the continuity and stability of the drainage.

[0047] The inflation assembly 32 includes an inflation tube 321 connected to the inner cavity of the outer cylinder 313. The inflation end of the inflation tube 321 is threaded with a sealing cap 322. Inflation is carried out through the inflation tube 321 to the membrane cylinder 312, and the sealing cap 322 ensures that the gas does not leak, thereby causing the membrane cylinder 312 to expand and fit tightly against the surrounding tissue, providing stable support for the drainage tube 1, preventing its displacement, and ensuring the continuity and stability of the drainage.

[0048] Furthermore, the drainage tube 1 is made of smooth polytetrafluoroethylene material. The purpose of using smooth polytetrafluoroethylene material for the drainage tube 1 is to take advantage of its extremely low coefficient of friction and excellent corrosion resistance to reduce the risk of gastrointestinal fluid residue and blockage, ensure a smooth drainage process, and improve drainage efficiency.

[0049] Both the base ring 311 and the outer cylinder 313 are made of silicone. The use of silicone in the base ring 311 and the outer cylinder 313 is due to its good flexibility and biocompatibility, which allows it to adapt to the patient's internal environment, ensuring the stability and safety of the anti-displacement mechanism 3, while reducing discomfort to the patient.

[0050] Furthermore, the membrane tube 312 is located between the base ring 311 and the outer tube 313. The membrane tube 312 is made of latex film. Because the membrane tube 312 is made of latex film and is located between the base ring 311 and the outer tube 313, it expands rapidly by inflation. It uses its elasticity and sealing properties to tightly adhere to the surrounding tissue, forming a stable support, effectively preventing the drainage tube from shifting, and ensuring the continuity and stability of drainage.

[0051] Furthermore, the anti-backflow mechanism 4 includes a mounting plate 41 fixedly installed at the liquid outlet end of the drainage tube 1. A single-opening flap 42 is rotatably connected inside the mounting plate 41. The single-opening flap 42 inside the mounting plate 41 automatically opens under liquid pressure to allow liquid to flow out, and automatically closes when the external pressure increases to prevent backflow, ensure hygiene and safety during the drainage process, and avoid the risk of cross-infection.

[0052] Furthermore, the gastrointestinal fluid collection device 5 includes a collection component 51, an odor-absorbing component 52, and a negative pressure component 53. The collection component 51 collects the drainage fluid, the odor-absorbing component 52 removes odors, and the negative pressure component 53 provides negative pressure to ensure that the drainage fluid flows smoothly into the collection bottle, thereby improving the purity and collection efficiency of the drainage fluid.

[0053] The collection component 51 includes a guide tube 511 threadedly connected to the outlet end of the mounting plate 41. The outlet end of the guide tube 511 is snapped with a graduated gastrointestinal fluid collection bottle 512. The threaded guide tube 511 ensures smooth introduction of drainage fluid, and the graduated gastrointestinal fluid collection bottle 512 at its outlet end facilitates observation and recording of drainage fluid volume, improving the accuracy and convenience of collection, while ensuring hygiene and safety during the drainage process.

[0054] The odor-absorbing component 52 includes an inclined tube 521 that communicates with a graduated gastrointestinal fluid collection bottle 512. An activated carbon box 522 is threadedly connected to the inclined upper end of the inclined tube 521. An activated carbon plate 523 is movably installed in the inner cavity of the activated carbon box 522. The activated carbon box 522 is connected to the inclined tube 521, and the built-in activated carbon plate 523 effectively absorbs the odor in the drainage fluid.

[0055] The negative pressure assembly 53 includes a negative pressure tube 531 threadedly connected to the inner wall of the activated carbon box 522. A negative pressure pump 532 is fixedly installed at the upper inclined end of the negative pressure tube 531. The negative pressure tube 531 and the negative pressure pump 532 create a negative pressure environment in the graduated gastrointestinal fluid collection bottle 512, which serves as the power source for the flow of gastrointestinal fluid, ensuring a continuous and stable drainage process and improving drainage efficiency.

[0056] Furthermore, the guide tube 511 is L-shaped, and it is connected to the inner cavity of the graduated gastrointestinal fluid collection bottle 512. The L-shaped design of the guide tube 511 ensures that the drainage fluid flows smoothly into the graduated gastrointestinal fluid collection bottle 512, while avoiding direct impact of the liquid on the bottom of the bottle, reducing splashing and air bubbles, and ensuring the quality of the collected gastrointestinal fluid.

[0057] Furthermore, the graduated gastrointestinal fluid collection bottle 512 is made of highly transparent polypropylene. By using highly transparent polypropylene to make the graduated gastrointestinal fluid collection bottle 512, medical personnel can clearly observe the drainage fluid, which is convenient for assessing the condition. At the same time, the polypropylene material is lightweight and durable, ensuring its safety and practicality.

[0058] In practical use, the working principle of this utility model is as follows:

[0059] First, medical personnel must precisely insert the inlet end of drainage tube 1 into the target drainage location within the patient's body. Because a spiral guide vane 2 is fixedly installed inside drainage tube 1, these vanes not only guide the smooth flow of gastrointestinal fluid but also effectively prevent blockage of drainage tube 1 due to viscous gastrointestinal fluid or solid residue. Simultaneously, drainage tube 1 is made of smooth polytetrafluoroethylene (PTFE), a material with an extremely low coefficient of friction and excellent corrosion resistance, further reducing the risk of blockage.

[0060] To ensure that the drainage tube 1 does not shift during drainage, the anti-displacement mechanism 3 must be activated immediately. An appropriate amount of gas is injected into the membrane cylinder 312 through the inflation tube 321 in the inflation assembly 32. The membrane cylinder 312, made of latex film, expands rapidly after inflation and, thanks to its good elasticity and sealing properties, adheres tightly to the surrounding tissues within the patient's body, forming a stable support structure. This design not only effectively resists internal factors such as natural gastrointestinal peristalsis and frequent changes in patient position, but also prevents external forces such as improper nursing procedures from affecting the position of the drainage tube 1, thereby ensuring the continuity and stability of drainage.

[0061] After inflation is complete, medical personnel must use the sealing cap 322 to tightly seal the inflation end of the inflation tube 321 to prevent gas leakage and ensure the continuous expansion and support effect of the membrane cylinder 312.

[0062] Next, the negative pressure pump 532 in the negative pressure assembly 53 is activated. The negative pressure pump 532 is connected to the activated carbon box 522 through the negative pressure tube 531, thereby creating a negative pressure environment inside the graduated gastrointestinal fluid collection bottle 512. This negative pressure state becomes the main driving force for the flow of gastrointestinal fluid, causing the fluid in the gastrointestinal tract to flow downward along the drainage tube 1 under the action of negative pressure.

[0063] When gastrointestinal fluid flows into drainage tube 1, the spiral guide vane 2 further guides its smooth flow and prevents blockage. Simultaneously, the single-opening flap 42 in the anti-backflow mechanism 4 automatically opens under liquid pressure, allowing the fluid to flow out smoothly. When external pressure increases, such as a sudden change in patient position or a pause in the negative pressure pump 532, the single-opening flap 42 automatically closes, effectively preventing external air or liquid from being drawn back into drainage tube 1, thus avoiding the risk of cross-infection and ensuring the hygiene and safety of the drainage process.

[0064] After passing through the anti-backflow mechanism 4, the drainage fluid flows into the guide tube 511 in the collection assembly 51. The guide tube 511 is designed in an "L" shape. This design not only ensures the smooth flow of the drainage fluid, but also avoids the liquid directly impacting the bottom of the graduated gastrointestinal fluid collection bottle 512, reducing the splashing of gastrointestinal fluid and the generation of air bubbles.

[0065] Finally, the drainage fluid flows from the outlet of the drainage tube 511 into the graduated gastrointestinal fluid collection bottle 512. The highly transparent polypropylene material allows medical personnel to clearly observe the amount and color of the drainage fluid, providing important reference for subsequent diagnosis and treatment. Simultaneously, the activated carbon plate 523 in the odor-absorbing component 52 effectively adsorbs odors and harmful substances as the drainage fluid flows into the graduated gastrointestinal fluid collection bottle 512, further improving the purity and quality of the collected gastrointestinal fluid.

[0066] In summary, the gastrointestinal fluid drainage device of this utility model, through its unique anti-displacement mechanism, spiral guide plate, anti-backflow mechanism, and gastrointestinal fluid collection device design, not only effectively solves the problems of easy displacement of drainage tube and blockage of drainage fluid in existing devices, but also improves drainage efficiency and safety, providing a more reliable and effective auxiliary means for the treatment and rehabilitation of patients.

[0067] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A gastrointestinal fluid drainage device, comprising a drainage tube (1) and a spiral guide plate (2) fixedly installed inside the drainage tube (1), characterized in that: An anti-displacement mechanism (3) is provided on the outside of the drainage tube (1), an anti-backflow mechanism (4) is provided at the outlet of the drainage tube (1), and a gastrointestinal fluid collection device (5) is provided at the outlet of the anti-backflow mechanism (4). The anti-displacement mechanism (3) includes an elastic component (31) and an inflatable component (32); The elastic component (31) includes a base ring (311) fixedly installed at the liquid inlet end of the drainage tube (1), a membrane tube (312) fixedly installed at one end of the base ring (311), and an outer tube (313) fixedly connected to the drainage tube (1) at the end of the membrane tube (312) away from the base ring (311). The inflation assembly (32) includes an inflation tube (321) connected to the inner cavity of the outer cylinder (313), and the inflation end of the inflation tube (321) is threadedly connected to a sealing cap (322).

2. The gastrointestinal fluid drainage device according to claim 1, characterized in that: The drainage tube (1) is made of smooth polytetrafluoroethylene material; Both the base ring (311) and the outer cylinder (313) are made of silicone material.

3. The gastrointestinal fluid drainage device according to claim 1, characterized in that: The film tube (312) is located between the base ring (311) and the outer tube (313), wherein the film tube (312) is made of latex film.

4. The gastrointestinal fluid drainage device according to claim 1, characterized in that: The anti-backflow mechanism (4) includes a mounting plate (41) fixedly installed at the liquid outlet end of the drainage pipe (1), and a single-opening cap (42) is rotatably connected inside the mounting plate (41).

5. A gastrointestinal fluid drainage device according to claim 4, characterized in that: The gastrointestinal fluid collection device (5) includes a collection component (51), an odor absorption component (52), and a negative pressure component (53). The collection assembly (51) includes a guide tube (511) threaded to the liquid outlet end of the mounting plate (41), and the liquid outlet end of the guide tube (511) is snapped with a graduated gastrointestinal fluid collection bottle (512). The odor-absorbing component (52) includes an inclined tube (521) that communicates with a graduated gastrointestinal fluid collection bottle (512). An activated carbon box (522) is threadedly connected to the inclined upper end of the inclined tube (521). An activated carbon plate (523) is movably installed in the inner cavity of the activated carbon box (522). The negative pressure assembly (53) includes a negative pressure tube (531) threaded to the inner wall of the activated carbon box (522), and a negative pressure pump (532) is fixedly installed at the upper inclined end of the negative pressure tube (531).

6. A gastrointestinal fluid drainage device according to claim 5, characterized in that: The guide tube (511) is L-shaped and is connected to the inner cavity of the graduated gastrointestinal fluid collection bottle (512).

7. A gastrointestinal fluid drainage device according to claim 5, characterized in that: The graduated gastrointestinal fluid collection bottle (512) is made of highly transparent polypropylene.