Flushing filter for enteral nutrient canal

By designing the filter box and cover structure of the enteral nutrition tube flushing filter, convenient dual filtration and quick disassembly and replacement are achieved, solving the problems of inconvenient disassembly and pore size adjustment of filters in the existing technology, and improving the filtration effect on small-particle drug residues.

CN224008802UActive Publication Date: 2026-03-20AFFILIATED HOSPITAL OF NANTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing flushing filters are inconvenient for dual filtration of drug residues and for adjusting the pore size of the filter screen, which affects the ease of disassembly and replacement of the filter screen and the filtration effect, especially for drug residues with smaller particles.

Method used

An enteral nutrition tube flushing filter was designed, which adopts a filter box and box cover structure. It is equipped with a lower filter screen and an upper filter screen. The filter screen can be quickly disassembled and replaced by sliding connection of limiting groove and limiting block. The filter screen aperture can be adjusted by the linkage of limiting column and limiting tooth through the knob, so as to effectively filter small particles of medicine residue.

Benefits of technology

It achieves convenient dual filtration of drug residues in the medicine, improves the ease of disassembly and replacement of the filter screen and the filtration effect, especially significantly improving the filtration effect of smaller drug residue particles.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224008802U_ABST
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Abstract

The utility model discloses an enteral nutrition tube flushing filter which comprises a filter box and a box cover, the box cover is arranged above the filter box, the box cover is in threaded connection with the filter box, a nutrition hose is arranged at the bottom end of the filter box and fixedly connected with the filter box, a glycerin injection tube is arranged on the outer wall of the filter box, and the glycerin injection tube is in threaded connection with the filter box. A glycerin injection tube is arranged in the filter box, the glycerin injection tube is fixedly connected with the filter box and is communicated with the interior of the filter box, an injector connecting tube is arranged at the top end of the box cover and is fixedly connected with the box cover, four groups of limiting grooves are formed in the inner wall of the filter box at equal intervals, and the limiting grooves are L-shaped. According to the medicine residue filter, medicine residues in medicine are conveniently and doubly filtered, the aperture of the filter screen is adjusted in a linkage mode, the filter screen can be conveniently and rapidly disassembled, assembled and replaced, the medicine residues with small particles can be well filtered, the convenience of disassembly, assembly and replacement of the filter screen is improved, and the use effect of the filter is improved.
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Description

Technical Field

[0001] This utility model relates to the field of flushing filter technology, specifically to an enteral feeding tube flushing filter. Background Technology

[0002] An enteral feeding tube is a tube inserted directly into a patient's intestine to provide nutritional support. It is suitable for patients who are unable to eat orally. The main function of the enteral feeding tube is to provide long-term or short-term enteral nutritional support, ensuring that the patient receives sufficient nutrition and energy. At the same time, medications can be injected into the intestine through the tube to flush out the affected area. In order to prevent the residue in the medication from being flushed into the intestine, it is usually necessary to filter the residue. However, the diameter of the enteral feeding tube is small, and it is very easy to be blocked by the residue in the medication, which makes the injection of medication slow and difficult, which is not conducive to the treatment of the patient and affects the treatment effect. In order to improve this situation, an enteral feeding tube flushing filter is proposed.

[0003] For example, a hose filter disclosed in the authorization announcement number CN212403750U includes a first hose, a second hose, and a filter assembly. The filter assembly includes a housing and a filter element disposed inside the housing. One end of the first hose and the second hose are respectively fixedly connected to both ends of the filter assembly. The other end of the first hose is connected to the water outlet terminal, and the other end of the second hose is connected to the water inlet.

[0004] Although it can prevent the water outlet from getting clogged, and can achieve functions such as sterilization and descaling of bath water, removal of chlorine ions in bath water, and enhancement of the fragrance of bath water by replacing different filter cartridges, thereby meeting users' high standards for bath water, it is not easy to leak and is inexpensive.

[0005] However, the existing flushing filter does not solve the problems of inconvenient dual filtration of drug residues and the inability to quickly disassemble and replace the filter screen due to the linkage adjustment of the filter screen's pore size, as well as the inability to effectively filter small drug residues. This affects the convenience of filter screen disassembly and replacement and the effectiveness of the filter. Utility Model Content

[0006] The purpose of this invention is to provide an enteral nutrition tube flushing filter to solve the problems mentioned in the background art, such as the inconvenience of flushing filters in the dual filtration of medicine residue and the difficulty in quickly disassembling and replacing the filter screen due to the linkage adjustment of the filter screen's pore size, as well as the inability to effectively filter small particles of medicine residue, thus affecting the convenience of filter screen disassembly and replacement and the effectiveness of the filter.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an enteral nutrition tube flushing filter, comprising a filter box and a cover. The cover is provided on the top of the filter box and is threadedly connected to the filter box. A nutrient tubing is provided at the bottom of the filter box and is fixedly connected to the filter box. A glycerol injection tube is provided on the outer wall of the filter box and is fixedly connected to and communicates with the interior of the filter box. A syringe connecting tube is provided at the top of the cover and is fixedly connected to the cover. Four sets of equally spaced limiting grooves are provided on the inner wall of the filter box, and the limiting grooves are L-shaped.

[0008] Preferably, the filter box is provided with a lower filter screen inside, and the lower filter screen is slidably connected to the filter box.

[0009] Preferably, the outer wall of the lower filter screen is provided with four sets of equally spaced limiting blocks, and the limiting blocks are slidably connected to the limiting groove.

[0010] Preferably, a movable shaft is installed at the center of the top of the lower filter screen, and the movable shaft is fixedly connected to the lower filter screen.

[0011] Preferably, an upper filter screen is provided above the lower filter screen, and the upper filter screen is movably connected to the lower filter screen via a movable shaft.

[0012] Preferably, a knob is provided at the center of the top of the upper filter screen, and the knob is fixedly connected to the upper filter screen.

[0013] Preferably, the outer wall of the upper filter screen is provided with four sets of equally spaced limiting posts, and the lower filter screen on one side of the limiting posts is provided with multiple sets of equally spaced limiting teeth, and the limiting posts and limiting teeth are slidably connected.

[0014] Preferably, both the lower and upper filter screens have multiple sets of filter holes with equal spacing on their surfaces, and the diameters of the filter holes are equal.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the flushing filter not only realizes convenient dual filtration of drug residue in the medicine and linkage adjustment of the filter screen pore size, which facilitates quick disassembly and replacement of the filter screen and good filtration of small drug residue particles, but also improves the convenience of disassembly and replacement of the filter screen and the effect of filter use.

[0016] (1) By removing the lower filter screen, align the limiting block with the limiting groove, and move the lower filter screen, the limiting block will move inside the limiting groove. When the limiting block moves to the turning point of the limiting groove, rotate the lower filter screen, the limiting block will rotate inside the limiting groove, and the limiting block will be locked inside the limiting groove. This will install the lower and upper filters inside the filter box. Then, install the box cover on the filter box and insert the nutrition tubing into the patient's body. When medication is needed, connect the syringe connecting tube to the syringe, and the medication will be delivered to the patient through the syringe connecting tube. The filter box contains a double filter, consisting of a lower filter and an upper filter, to remove drug residue from the medication. When glycerin is needed to cleanse the intestines, it can be injected by connecting the glycerin to the glycerin injection tube. The filtration process is the same as described above. When the filter needs to be removed and replaced, unscrew the box cover and then rotate the lower filter in the opposite direction to remove both the lower and upper filters from the filter box. Then, replace them with new ones. This achieves convenient double filtration of drug residue from the medication, facilitating quick disassembly and replacement of the filter and improving the ease of filter disassembly and replacement.

[0017] (2) By rotating the knob, the upper filter screen rotates around the movable shaft. The upper filter screen drives the limiting post to slide on the surface of the limiting teeth. The limiting teeth limit the limiting post and maintain the state of the upper filter screen to prevent it from shifting. This makes the filter screen holes on the surfaces of the lower filter screen and the upper filter screen misaligned, thereby adjusting and reducing the diameter of the filter screen holes to filter smaller particles of medicine residue. This improves the filter's performance and enables convenient linkage adjustment of the filter screen hole diameter, facilitating the good filtration of smaller particles of medicine residue and improving the filter's performance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional exploded structure diagram of the present invention;

[0020] Figure 3 This is a three-dimensional exploded structure diagram of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the limiting groove of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the upper filter screen of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the lower filter screen of this utility model.

[0024] In the diagram: 1. Filter box; 2. Glycerin injection tube; 3. Box cover; 4. Syringe connecting tube; 5. Lower filter screen; 6. Nutrient tubing; 7. Limiting groove; 8. Upper filter screen; 9. Knob; 10. Limiting post; 11. Movable shaft; 12. Limiting block; 13. Limiting teeth. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figure 1-6 An embodiment of this utility model provides an enteral nutrition tube flushing filter, including a filter box 1 and a cover 3. The cover 3 is provided on the top of the filter box 1 and is threadedly connected to the filter box 1. A nutrition tubing 6 is provided at the bottom of the filter box 1 and is fixedly connected to the filter box 1. A glycerol injection tube 2 is provided on the outer wall of the filter box 1 and is fixedly connected to the filter box 1 and communicates with the inside of the filter box 1. A syringe connecting tube 4 is provided at the top of the cover 3 and is fixedly connected to the cover 3. Four sets of equal-spaced limiting grooves 7 are provided on the inner wall of the filter box 1, and the limiting grooves 7 are L-shaped.

[0027] Remove the lower filter screen 5, align the limiting block 12 with the limiting groove 7, and move the lower filter screen 5. The lower filter screen 5 will then move the limiting block 12 within the limiting groove 7. When the limiting block 12 reaches the turning point of the limiting groove 7, rotate the lower filter screen 5. The lower filter screen 5 will then rotate the limiting block 12 within the limiting groove 7, thus locking the limiting block 12 inside the limiting groove 7. This installs the lower filter screen 5 and the upper filter screen 8 inside the filter box 1. Then, install the box cover 3 onto the filter box 1. Insert the nutrition tubing 6 into the patient's body. When medication is needed, connect the syringe connecting tube 4 to the syringe, and the medication will be administered through the syringe. The connecting tube 4 delivers the medicine into the filter box 1, and it passes through the lower filter screen 5 and the upper filter screen 8 for double filtration to remove the residue in the medicine. When glycerin needs to be injected to cleanse the intestines, the glycerin is connected to the glycerin injection tube 2 for injection. The filtration steps are the same as above. When the filter screen needs to be disassembled and replaced, the box cover 3 is unscrewed, and then the lower filter screen 5 is rotated in the opposite direction to remove the lower filter screen 5 and the upper filter screen 8 from the inside of the filter box 1. Then, a new one can be replaced. This achieves convenient double filtration of the residue in the medicine, facilitates quick disassembly and replacement of the filter screen, and improves the convenience of disassembly and replacement of the filter screen.

[0028] The filter box 1 is provided with a lower filter screen 5 inside, and the lower filter screen 5 is slidably connected to the filter box 1. The outer wall of the lower filter screen 5 is provided with four sets of equally spaced limiting blocks 12, and the limiting blocks 12 are slidably connected to the limiting groove 7.

[0029] A movable shaft 11 is installed at the center of the top of the lower filter screen 5, and the movable shaft 11 is fixedly connected to the lower filter screen 5. An upper filter screen 8 is provided above the lower filter screen 5, and the upper filter screen 8 is movably connected to the lower filter screen 5 through the movable shaft 11.

[0030] A knob 9 is provided at the center of the top of the upper filter screen 8, and the knob 9 is fixedly connected to the upper filter screen 8;

[0031] The upper filter screen 8 has four sets of equally spaced limiting posts 10 on its outer wall. The lower filter screen 5 on one side of the limiting posts 10 has multiple sets of equally spaced limiting teeth 13 inside. The limiting posts 10 and the limiting teeth 13 are slidably connected. The surfaces of the lower filter screen 5 and the upper filter screen 8 are both provided with multiple sets of equally spaced filter holes with equal diameters.

[0032] Rotating knob 9 causes the upper filter screen 8 to rotate around the movable shaft 11. The upper filter screen 8 then causes the limiting post 10 to slide on the surface of the limiting tooth 13. The limiting tooth 13 limits the limiting post 10, maintaining the state of the upper filter screen 8 and preventing it from shifting. This causes the filter mesh holes on the surfaces of the lower filter screen 5 and the upper filter screen 8 to be misaligned, thereby adjusting and reducing the diameter of the filter mesh holes to filter smaller particles of medicinal residue. This improves the filter's effectiveness and enables convenient linkage adjustment of the filter mesh hole diameter, facilitating the effective filtration of smaller particles of medicinal residue and enhancing the filter's performance.

[0033] Working principle: Remove the lower filter screen 5, align the limiting block 12 with the limiting groove 7, move the lower filter screen 5, and the lower filter screen 5 will drive the limiting block 12 to move inside the limiting groove 7. When the limiting block 12 moves to the turning position of the limiting groove 7, rotate the lower filter screen 5, and the lower filter screen 5 will drive the limiting block 12 to rotate inside the limiting groove 7, thereby locking the limiting block 12 inside the limiting groove 7. This installs the lower filter screen 5 and the upper filter screen 8 inside the filter box 1. Then, install the box cover 3 on the filter box 1, insert the nutrition tubing 6 into the patient's body. When medication needs to be injected, connect the syringe connecting tube 4 to the syringe. The medication is delivered to the inside of the filter box 1 through the syringe connecting tube 4 and undergoes double filtration by the lower filter screen 5 and the upper filter screen 8 to filter out any residue in the medication. When glycerin needs to be injected to cleanse the intestines... When injecting glycerin, simply connect the glycerin injection tube 2. The filtration steps are the same as above. When it is necessary to disassemble and replace the filter screen, unscrew the box cover 3, and then rotate the lower filter screen 5 in the opposite direction to remove the lower filter screen 5 and the upper filter screen 8 from the inside of the filter box 1. Then replace them with new ones. Turn the knob 9, which will drive the upper filter screen 8 to rotate around the movable shaft 11. The upper filter screen 8 will drive the limiting post 10 to slide on the surface of the limiting tooth 13. The limiting tooth 13 will limit the limiting post 10 to maintain the state of the upper filter screen 8 and prevent it from shifting. This will cause the filter screen holes on the surfaces of the lower filter screen 5 and the upper filter screen 8 to be misaligned, thereby adjusting and reducing the diameter of the filter screen holes to filter out smaller particles of medicine residue, thereby improving the filter's effectiveness. The above is the complete usage of the enteral nutrition tube flushing filter.

Claims

1. An enteral feeding tube flushing filter, comprising a filter box (1) and a box cover (3), characterized in that: The filter box (1) is provided with a cover (3) on the top, and the cover (3) is threadedly connected to the filter box (1). The filter box (1) is provided with a nutrient tubing (6) at the bottom end, and the nutrient tubing (6) is fixedly connected to the filter box (1). The filter box (1) is provided with a glycerin injection tube (2) on the outer wall, and the glycerin injection tube (2) is fixedly connected to the filter box (1) and communicates with the inside of the filter box (1). The cover (3) is provided with a syringe connecting tube (4) at the top end, and the syringe connecting tube (4) is fixedly connected to the cover (3). The filter box (1) is provided with four sets of equally spaced limiting grooves (7), and the limiting grooves (7) are L-shaped.

2. The enteral feeding tube flushing filter according to claim 1, characterized in that: The filter box (1) is provided with a lower filter screen (5) inside, and the lower filter screen (5) is slidably connected to the filter box (1).

3. The enteral feeding tube flushing filter according to claim 2, characterized in that: The outer wall of the lower filter screen (5) is provided with four sets of equally spaced limiting blocks (12), and the limiting blocks (12) are slidably connected to the limiting groove (7).

4. The enteral feeding tube flushing filter according to claim 2, characterized in that: A movable shaft (11) is installed at the center of the top of the lower filter screen (5), and the movable shaft (11) is fixedly connected to the lower filter screen (5).

5. The enteral feeding tube flushing filter according to claim 2, characterized in that: An upper filter (8) is provided above the lower filter (5), and the upper filter (8) is movably connected to the lower filter (5) via a movable shaft (11).

6. The enteral feeding tube flushing filter according to claim 5, characterized in that: A knob (9) is provided at the center of the top of the upper filter screen (8), and the knob (9) is fixedly connected to the upper filter screen (8).

7. The enteral feeding tube flushing filter according to claim 5, characterized in that: The upper filter screen (8) has four sets of equally spaced limiting posts (10) on its outer wall. The lower filter screen (5) on one side of the limiting posts (10) has multiple sets of equally spaced limiting teeth (13) inside, and the limiting posts (10) and limiting teeth (13) are slidably connected.

8. The enteral feeding tube flushing filter according to claim 2, characterized in that: The surfaces of both the lower filter screen (5) and the upper filter screen (8) are provided with multiple sets of filter holes at equal intervals, and the diameters of the filter holes are equal.

Citation Information

Patent Citations

  • Hose filter

    CN212403750U