An enteral feeding tube flush filter

Abstract

The utility model relates to filter technical field, and disclose a kind of enteral nutrition tube flushing filter, including pipe body and the filter cartridge of pipe body middle end setting, the inner wall of the filter cartridge is fixedly connected with an arc filter screen, and the top of filter cartridge is provided with shaft housing. This kind of enteral nutrition tube flushing filter, by the structure that spiral auger piece of filter cartridge inside setting and arc filter screen, filter cartridge inner wall close contact, when rotating shaft drives spiral auger piece to rotate, its spiral auger piece can push down the impurity attached to the surface of filter screen and cylinder wall continuously to the sealing cap place concentration, realized the cleaning purpose of filter screen and filter cartridge inner wall, effectively avoid the blockage problem caused by impurity accumulation, the design of the backflush pipe and manual valve, medical staff can be connected backflush pipe by injector reverse injection flushing liquid, form directional backflush to arc filter screen aperture and spiral auger piece gap, substantially improve the removal efficiency of stubborn impurity.

Description

Technical Field

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

[0002] After a period of use, enteral feeding tubes often accumulate deposits, residues, or bacteria inside the tube. If not cleaned in time, this can lead to complications such as tube blockage and infection.

[0003] An existing patent (publication number: CN222151136U) discloses an enteral nutrition tube flushing filter, including a housing. A feeding tube is fixedly connected to the left side of the housing, an inlet pipe is fixedly connected to the right side, and a waste discharge pipe is fixedly connected to the front. A sealing block is slidably connected to the top of the housing, and a filter screen is fixedly connected to the bottom of the sealing block. A cleaning assembly is installed inside the right side of the housing. A fixing block is fixedly connected to the inner bottom wall of the sealing block, and positioning rods are fixedly connected to both sides of the fixing block. Insert rods are slidably connected to the outer periphery of the positioning rods, and a spring is sleeved in the middle of the outer periphery of the positioning rods. In this invention, the combination of the sealing block, filter screen, fixing block, positioning rod, insert rod, spring, pull rod, and limiting plate allows for convenient disassembly and assembly of the enteral nutrition tube flushing filter structure, thereby ensuring regular cleaning of the filter structure and maintaining stable filter operation.

[0004] The aforementioned filter's movable frame, under the action of guide wheels, can move in a circular motion along one side of the inner wall of the housing. Guide rings on both sides ensure that the movable frame does not deviate during the circular motion. At the same time, the brush on the movable frame can easily clean the impurities attached to the inside of the housing. However, the brush can only clean the inner wall of the housing and cannot clean the filter screen. When there are many impurities attached to the filter screen, the flow rate is low, which increases the resistance to liquid flow, reduces the flow rate, affects the rotation of the impeller, reduces the rotation of the brush, and affects the cleaning of the housing. Secondly, during the cleaning process, the brush bristles are easy to fall off and may pass through the filter screen, which is a low safety concern. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an enteral nutrition tube flushing filter, which has advantages such as requiring no disassembly for filter cleaning, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an enteral nutrition tube flushing filter, comprising a tube body and a filter cylinder disposed at the middle end of the tube body, wherein an arc-shaped filter screen is fixedly connected to the inner wall of the filter cylinder, a shaft housing is disposed at the top end of the filter cylinder, a rotating shaft is rotatably connected to the inner top wall of the shaft housing, and a spiral auger plate is fixedly connected to the bottom end of the rotating shaft, wherein the outer surface of the spiral auger plate abuts against the arc-shaped filter screen and the inner wall of the filter cylinder respectively; The outer surface of the filter cartridge is fixedly connected to a backwash pipe with one end inclined upwards. A manual valve is installed at the top of the backwash pipe, and an arc-shaped filter screen is located between the spiral auger blades and the backwash pipe. The bottom end of the filter cartridge is threaded with a sealing cap.

[0007] Furthermore, a sealing gasket is installed on the inner bottom wall of the sealing cover.

[0008] The above solution, by setting a sealing gasket, can improve the sealing effect of the sealing cap and prevent leakage.

[0009] Furthermore, a one-way valve is installed near the middle end of the tube body, and the one-way valve is located on one side of the spiral auger blade.

[0010] The above solution, through the setting of a one-way valve, can effectively avoid backflow, ensure the safe one-way delivery of nutrient solution, and prevent the backflow of digestive tract contents from contaminating the pipeline system.

[0011] Furthermore, a sealing plug is fixedly connected to the outer surface of the rotating shaft, and the outer surface of the sealing plug is in close contact with the inner wall of the shaft housing.

[0012] The above solution, through the setting of the sealing plug, can improve the sealing performance at the connection between the shaft housing and the rotating shaft, effectively preventing liquid from seeping out from the connection of the rotating shaft.

[0013] Furthermore, a rotating ring is fixedly connected to the top end of the rotating shaft.

[0014] The above solution, with its rotating loop design, facilitates waste removal and cleaning by medical staff.

[0015] Furthermore, the filter cartridge is made of a transparent material.

[0016] The above solution makes it easier for medical staff to check the interception status of the arc-shaped filter.

[0017] Furthermore, the spiral auger blades are made of polycarbonate material.

[0018] The above-mentioned solution meets the biocompatibility standards for medical devices, and is also heat-resistant and can withstand routine disinfection procedures.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: This enteral nutrition tube flushing filter features a structure where spiral auger blades inside the filter cartridge tightly contact the arc-shaped filter screen and the inner wall of the filter cartridge. When the rotating shaft drives the spiral auger blades to rotate, the spiral auger blades continuously push impurities adhering to the surface of the filter screen and the cylinder wall downwards to the sealing cap for collection, achieving the purpose of cleaning the filter screen and the inner wall of the filter cartridge. This effectively avoids clogging problems caused by the accumulation of impurities. The design of the backflush tube and manual valve allows medical staff to inject flushing fluid in reverse through a syringe connected to the backflush tube, forming a directional backflush on the arc-shaped filter screen pores and the gaps between the spiral auger blades, greatly improving the removal efficiency of stubborn impurities. The transparent filter cartridge allows for real-time observation of the filter screen's interception status, and the removable sealing cap at the bottom enables rapid discharge of impurities, effectively improving the overall practicality. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ; Figure 2 This is a cross-sectional view of the overall structure of this application; Figure 3 This is a structural diagram of the filter cartridge of this application; Figure 4 This is a cross-sectional view of the filter cartridge structure of this application.

[0021] In the picture: 1. Pipe body; 2. Filter cartridge; 3. Arc-shaped filter screen; 4. Shaft housing; 5. Rotating shaft; 6. Spiral auger blade; 7. Backflush pipe; 8. Manual valve; 9. Sealing cap; 10. Sealing gasket; 11. Check valve; 12. Sealing plug; 13. Rotary ring. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Please see Figure 1 , Figure 2 and Figure 3 The enteral nutrition tube flushing filter in this embodiment includes a tube body 1 and a filter cylinder 2 disposed in the middle of the tube body 1. The filter cylinder 2 is made of transparent material, so that medical staff can easily check the interception status of the arc-shaped filter screen 3.

[0024] Please see Figure 1 , Figure 2 and Figure 4An arc-shaped filter screen 3 is fixedly connected to the inner wall of the filter cylinder 2. A shaft housing 4 is provided at the top of the filter cylinder 2. A rotating shaft 5 is rotatably connected to the inner top wall of the shaft housing 4. A spiral auger blade 6 is fixedly connected to the bottom of the rotating shaft 5. The spiral auger blade 6 is made of polycarbonate material, which meets the biocompatibility standards for medical devices. It is also heat-resistant and can withstand routine sterilization procedures. The outer surface of the spiral auger blade 6 abuts against the arc-shaped filter screen 3 and the inner wall of the filter cylinder 2, respectively. When the arc-shaped filter screen 3 is clogged or impurities adhere to the inner wall of the filter cylinder 2, rotating the spiral auger blade 6 can push the impurities attached to the surfaces of the filter cylinder 2 and the arc-shaped filter screen 3 downward, thus preventing the arc-shaped filter screen 3 from becoming clogged.

[0025] Please see Figure 1 , Figure 2 and Figure 4 A rotating ring 13 is fixedly connected to the top of the rotating shaft 5. The rotating ring 13 facilitates waste removal and cleaning by medical personnel. A sealing plug 12 is fixedly connected to the outer surface of the rotating shaft 5. The outer surface of the sealing plug 12 is in close contact with the inner wall of the shaft housing 4. The sealing plug 12 improves the sealing performance at the connection between the shaft housing 4 and the rotating shaft 5, effectively preventing liquid from seeping out from the connection of the rotating shaft 5. A backflush pipe 7 with one end tilted upwards is fixedly connected to the outer surface of the filter cylinder 2. A manual valve 8 is installed at the top of the backflush pipe 7. The arc-shaped filter screen 3 is located between the spiral auger blade 6 and the backflush pipe 7. When cleaning the arc-shaped filter screen 3 and discharging impurities, the arc-shaped filter screen 3 can be backflushed by connecting an external syringe to one end of the backflush pipe 7. At the same time, the spiral auger blade 6 can also be backflushed, thereby improving the overall cleaning effect.

[0026] Please see Figure 1 , Figure 2 and Figure 4 A one-way valve 11 is installed near the middle end of the pipe body 1. The one-way valve 11 is located on one side of the spiral auger plate 6. The one-way valve 11 can effectively prevent backflow, ensure the safe one-way delivery of nutrient solution, and prevent the backflow of digestive tract contents to contaminate the pipeline system. The bottom end of the filter cylinder 2 is threaded with a sealing cap 9. The sealing cap 9 makes it easy for users to discharge impurities. A sealing gasket 10 is installed on the inner bottom wall of the sealing cap 9. The sealing gasket 10 can improve the sealing effect of the sealing cap 9 to prevent leakage.

[0027] This embodiment of an enteral nutrition tube flushing filter utilizes a structure where a spiral auger blade 6 inside the filter cylinder 2 tightly contacts the arc-shaped filter screen 3 and the inner wall of the filter cylinder 2. When the rotating shaft 5 drives the spiral auger blade 6 to rotate, the spiral auger blade 6 continuously pushes impurities attached to the surface of the filter screen and the cylinder wall downwards to the sealing cover 9 for concentration, achieving the purpose of cleaning the filter screen and the inner wall of the filter cylinder 2, effectively avoiding clogging problems caused by impurity accumulation. The design of the backflush pipe 7 and manual valve 8 allows medical personnel to inject flushing fluid in reverse through a syringe connected to the backflush pipe 7, forming a directional backflush on the pores of the arc-shaped filter screen 3 and the gaps of the spiral auger blade 6, greatly improving the removal efficiency of stubborn impurities. The transparent material of the filter cylinder 2 facilitates real-time observation of the filter screen's interception status, and the removable sealing cover 9 at the bottom enables rapid discharge of impurities, effectively improving the overall practicality.

[0028] The working principle of the above embodiment is as follows: After the nutrient solution enters the filter cylinder 2 through the inlet of the tube 1, the arc-shaped filter screen 3 filters the nutrient solution, and impurities are trapped on one side of the filter screen. At this time, the spiral auger blade 6 is in a stationary state, and the one-way valve 11 remains open. The liquid flows to the outlet end through the one-way valve 11 to prevent backflow. When the transparent filter cylinder 2 shows that impurities have accumulated on the surface of the filter screen, the medical staff manually rotates the rotating ring 13, which drives the rotating shaft 5 to make the spiral auger blade 6 rotate. The spiral edge of the spiral auger blade 6 contacts the filter screen to scrape it. Wipe away the impurities adhering to the surface of the arc-shaped filter screen 3. At the same time, the friction between the auger blades and the inner wall of the filter cylinder 2 pushes the deposits on the cylinder wall downwards. Unscrew the manual valve 8 to connect the syringe and inject the flushing liquid to form a reverse water flow. The backwash water flows obliquely through the backwash pipe 7 to flush out the back of the filter screen and flush out the particles embedded in the mesh. The impurities accumulated at the bottom of the filter cylinder 2 are discharged in a concentrated manner by unscrewing the threaded sealing cap 9 with the sealing gasket 10. After cleaning, tighten the sealing cap 9 again, and the sealing gasket 10 will undergo elastic deformation to achieve a seal.

[0029] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An enteral feeding tube flush filter comprising a tube body (1) and a filter cartridge (2) arranged in the tube body (1), characterized in that: An arc-shaped filter screen (3) is fixedly connected to the inner wall of the filter cylinder (2). A shaft housing (4) is provided at the top of the filter cylinder (2). A rotating shaft (5) is rotatably connected to the inner top wall of the shaft housing (4). A spiral auger plate (6) is fixedly connected to the bottom end of the rotating shaft (5). The outer surface of the spiral auger plate (6) abuts against the arc-shaped filter screen (3) and the inner wall of the filter cylinder (2) respectively. The outer surface of the filter cylinder (2) is fixedly connected to a backflush pipe (7) with one end inclined upward. A manual valve (8) is installed at the top of the backflush pipe (7). The arc-shaped filter screen (3) is located between the spiral auger plate (6) and the backflush pipe (7). The bottom end of the filter cartridge (2) is threaded with a sealing cap (9).

2. An enteral feeding tube flush filter according to claim 1, wherein: A sealing gasket (10) is installed on the inner bottom wall of the sealing cover (9).

3. An enteral feeding tube flush filter according to claim 1, wherein: A one-way valve (11) is installed near the middle end of the tube body (1), and the one-way valve (11) is located on one side of the spiral auger plate (6).

4. An enteral feeding tube flush filter according to claim 1, wherein: A sealing plug (12) is fixedly connected to the outer surface of the rotating shaft (5), and the outer surface of the sealing plug (12) is in close contact with the inner wall of the shaft housing (4).

5. An enteral feeding tube flush filter according to claim 1, wherein: A rotating ring (13) is fixedly connected to the top end of the rotating shaft (5).

6. An enteral feeding tube flush filter according to claim 1, wherein: The filter cartridge (2) is made of transparent material.

7. An enteral feeding tube flush filter according to claim 1, wherein: The spiral auger plate (6) is made of polycarbonate material.

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