A device for cleaning and unblocking a nasoenteral tube

Abstract

The utility model relates to medical instrument technical field, the utility model relates to a nasal tube cleaning and dredging device, including flexible cleaning rod, brush and flexible sleeve, flexible cleaning rod is set up in hollow and the one end of hollow portion extends to the one side end face department of flexible cleaning rod, brush is set up on flexible cleaning rod, flexible sleeve is slidably sleeved on flexible cleaning rod, the utility model has the advantages that: the flexible cleaning rod and flexible sleeve of the present application are all made of flexible material, can comply with the bending path of nasal tube, avoid the hard structure to nasal tube inner wall cause hard scraping or puncture injury, reduce the pipeline breakage risk, the end of flexible cleaning rod setting brush hair side is coniform, has strengthened the puncture ability of device to the plug in the process of inserting nasal tube on the inner wall of pipe cavity, and brush and spray hole staggered arrangement form the composite cleaning mode of'mechanical scraping + fluid flushing', and the synergy effect of both promotes dredging effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a nasoenteric tube cleaning and unblocking device. Background Technology

[0002] Nasoenteric tubes, as an important tool for enteral nutrition support, are commonly used for patients who are unable to eat orally or have digestive dysfunction. The tube is inserted into the intestine through the nasal cavity to deliver nutrients and medications. However, in practice, nasoenteric tubes are prone to blockage due to nutrient solution residue, medication precipitation, and food residue buildup. Blockage not only affects the normal delivery of nutrients and medications, reducing treatment effectiveness, but may also delay the patient's condition and increase medical risks. Existing methods for cleaning and clearing nasoenteric tubes, such as simply flushing with a syringe, are often ineffective for severe blockages; while using rigid tools can easily damage the tube wall, leading to rupture, leakage, and even patient discomfort and complications. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a nasoenteric tube cleaning and unblocking device that is safe, efficient, and easy to operate.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a nasoenteric tube cleaning and unblocking device, comprising:

[0005] A flexible cleaning rod, wherein the flexible cleaning rod is hollow and one end of the hollow part extends to one side end face of the flexible cleaning rod, and a connecting part that can be connected to a syringe is provided on the side of the flexible cleaning rod near the opening of the hollow part, and a plurality of spray holes are provided on the side wall of the flexible cleaning rod away from the connecting part.

[0006] The brush bristles are disposed on the flexible cleaning rod and located on the side wall of the flexible cleaning rod where the spray holes are disposed, and are staggered with the spray holes;

[0007] A flexible sleeve is slidably fitted onto the flexible cleaning rod, allowing the brush bristles to be stored between the flexible sleeve and the flexible cleaning rod.

[0008] Preferably, the end of the flexible cleaning rod near the side where the bristles are located is conical.

[0009] Preferably, a marking line is provided on the side wall of the flexible cleaning rod near the connecting part to mark the position of the flexible sleeve, ensuring that the bristles and the spray holes are fully exposed.

[0010] Preferably, the connecting part includes a limiting plate disposed at the end of the flexible cleaning rod, the limiting plate being perpendicular to the axial direction of the flexible cleaning rod, the limiting plate being provided with a connecting tube, the connecting tube communicating with the hollow part of the flexible cleaning rod, and the connecting tube being detachably provided with a sealing plug that can seal with it.

[0011] Preferably, the flexible cleaning rod and the flexible sleeve are in a static friction fit.

[0012] With the above structure, this utility model has the following advantages:

[0013] Both the flexible cleaning rod and the flexible sleeve in this application are made of flexible materials, which can conform to the curved path of the nasoenteric tube and avoid hard scraping or puncture damage to the inner wall of the nasoenteric tube caused by the rigid structure, thus reducing the risk of tube damage. The end of the flexible cleaning rod with the bristles is conical, which improves the penetration ability of the device during insertion into the nasoenteric tube and avoids failure to penetrate the blockage. The bristles and nozzles are arranged alternately to form a composite cleaning mode of "mechanical scraping + fluid flushing". The bristles can directly peel off the blockage such as nutrient solution residue and drug crystals attached to the tube wall, and the nozzles inject flushing fluid (such as physiological saline) through a syringe to further disperse the debris with water flow. The two work together to improve the unblocking effect.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0018] Figure 3 This is the front view of this utility model.

[0019] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of AA.

[0020] Figure 5 yes Figure 1 A magnified structural diagram of section B.

[0021] Figure 6 This is a schematic diagram of the unused state of this utility model.

[0022] Figure 7 This is a schematic diagram of the utility model in use.

[0023] As shown in the figure: 1. Flexible cleaning rod; 2. Flexible sleeve; 3. Limiting plate; 4. Adaptor tube; 5. Sealing plug; 6. Brush bristles; 7. Spray nozzle; 8. Marking line. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Combined with appendix Figures 1-7 A nasoenteric tube cleaning and unblocking device includes a flexible cleaning rod 1, bristles 6 and a flexible sleeve 2.

[0027] The flexible cleaning rod 1 is hollow, with one end of the hollow portion extending to one side of the end face of the flexible cleaning rod 1. The flexible cleaning rod 1 has a connecting part that can be connected to a syringe on the side near the opening of its hollow portion. Several spray holes 7 are opened on the side wall of the flexible cleaning rod 1 away from the connecting part. The bristles 6 are set on the flexible cleaning rod 1 and are located on the side wall of the flexible cleaning rod 1 where the spray holes 7 are set, and are arranged alternately with the spray holes 7. The flexible sleeve 2 can be slidably sleeved on the flexible cleaning rod 1, and can store the bristles 6 between the flexible sleeve 2 and the flexible cleaning rod 1. Both the flexible cleaning rod 1 and the flexible sleeve 2 are made of medical silicone material.

[0028] In one embodiment of this utility model, the end of the flexible cleaning rod 1 near the side where the bristles 6 are located is conical. Specifically, as shown... Figure 5As shown, the conical end adopts an arc-shaped transition design, and its surface roughness is controlled at a low level to reduce frictional resistance with the inner wall of the nasoenteric tube. The diameter of the conical structure is adapted to the diameter of the main body of the flexible cleaning rod 1, which can smoothly pass through the curved part of the nasoenteric tube. During the insertion of the nasoenteric tube, it can enhance its ability to penetrate the blockage. At the same time, when it goes deep into the nasoenteric tube, it helps to guide the flexible cleaning rod 1 to move naturally along the lumen of the nasoenteric tube, ensuring the safety and smoothness of the unblocking operation.

[0029] In one embodiment of this utility model, a marking line 8 is provided on the side wall of the flexible cleaning rod 1, near the connecting part, to mark the position of the flexible sleeve 2, ensuring that the bristles 6 and the spray nozzle 7 are fully exposed. Specifically, as shown... Figure 6 As shown, the marking line 8 is made on the side wall surface of the flexible cleaning rod 1 using a ring etching process. Its width is moderate and has clear visual recognition. When the flexible sleeve 2 slides along the flexible cleaning rod 1, the operator can accurately judge the exposure status of the bristles 6 and the nozzles 7 by observing the relative position of the end of the flexible sleeve 2 and the marking line 8. When the end of the flexible sleeve 2 is aligned with the marking line 8, it indicates that the bristles 6 and the nozzles 7 are fully exposed and normal cleaning and unblocking operations can be carried out. If the end of the flexible sleeve 2 does not reach the marking line 8, the sleeve needs to be slid until the two are aligned, thereby ensuring the functional integrity and effectiveness of the cleaning and unblocking device and avoiding poor cleaning effect due to improper sleeve position.

[0030] In one embodiment of this utility model, the connecting part includes a limiting plate 3 disposed at the end of the flexible cleaning rod 1. The limiting plate 3 is perpendicular to the axial direction of the flexible cleaning rod 1. The limiting plate 3 is provided with a connecting pipe 4, which communicates with the hollow part of the flexible cleaning rod 1. A sealing plug 5 that can be detachably and sealingly fitted to the connecting pipe 4 is provided. Specifically, as shown... Figures 1-4 As shown, the limiting plate 3 is a circular flat plate structure with a diameter larger than the outer diameter of the flexible cleaning rod 1. It is firmly connected to the end of the flexible cleaning rod 1 through a hot-press forming process, providing a stable support plane for the connection of the adapter tube 4. The adapter tube 4 is vertically fixed at the center of the limiting plate 3, and its inner diameter matches the inner diameter of the hollow part of the flexible cleaning rod 1 to ensure smooth flow of the flushing fluid. The outer surface of the adapter tube 4 is provided with external threads, and the inner wall of the sealing plug 5 is provided with matching internal threads. The sealing plug 5 and the adapter tube 4 are detachably connected by screwing the threads together. When it is necessary to connect a syringe for flushing, the sealing plug 5 can be unscrewed, and the output end of the syringe head can be tightly inserted into the adapter tube 4 through the tube. After the operation is completed, the sealing plug 5 is screwed onto the adapter tube 4 to prevent external impurities from entering the device and to maintain the cleanliness and safety of the device.

[0031] In one embodiment of this utility model, the flexible cleaning rod 1 and the flexible sleeve 2 are in static friction fit. Specifically, the outer surface of the flexible cleaning rod 1 adopts an elliptical or chamfered conical micro-convex structure (height 50-150μm, major axis diameter 80-200μm), with a 10-15° chamfer at the top and a spiral array layout (pitch 1-2mm, helix angle 15-30°). The inner surface of the flexible sleeve 2 is also designed with a matching micro-convex texture. The two work together to generate a suitable static friction force. The magnitude of this static friction force has been precisely calculated and experimentally verified. It can ensure that the flexible sleeve 2 is stably fitted on the flexible cleaning rod 1 without slipping when no external force is applied, and that the flexible sleeve 2 can slide smoothly along the flexible cleaning rod 1 when the operator applies a moderate external force, so as to realize the operation of storing and exposing the bristles 6. At the same time, this static friction cooperation method can maintain stable performance during long-term use and is not prone to frictional decrease due to wear, ensuring that the device can still reliably perform its function after multiple uses.

[0032] In summary, this invention constructs a composite cleaning mechanism that combines mechanical scraping and fluid flushing through an innovative combination of the flexible cleaning rod 1, the bristles 6, and the flexible sleeve 2. The conical end and flexible material ensure that the device can follow the curved path of the nasoenteric tube and smoothly penetrate the lumen. The design of the marking line 8 and static friction cooperation enables precise control of the sleeve position and ensures the functional integrity of the bristles 6 and the nozzle 7. The sealing structure of the connection takes into account both the efficiency of the flushing fluid flow and the need for device cleaning and maintenance. In clinical applications, this device can efficiently remove blockages such as nutrient solution residue and drug precipitation, and the flexible structure design can reduce the risk of nasoenteric tube damage. It is convenient and safe to operate.

[0033] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A nasoenteric tube cleaning and unblocking device, characterized in that, include: A flexible cleaning rod, wherein the flexible cleaning rod is hollow and one end of the hollow part extends to one side end face of the flexible cleaning rod, and a connecting part that can be connected to a syringe is provided on the side of the flexible cleaning rod near the opening of the hollow part, and a plurality of spray holes are provided on the side wall of the flexible cleaning rod away from the connecting part. The brush bristles are disposed on the flexible cleaning rod and located on the side wall of the flexible cleaning rod where the spray holes are disposed, and are staggered with the spray holes; A flexible sleeve is slidably fitted onto the flexible cleaning rod, allowing the brush bristles to be stored between the flexible sleeve and the flexible cleaning rod.

2. The nasoenteric tube cleaning and unblocking device according to claim 1, characterized in that: The end of the flexible cleaning rod near the side where the bristles are located is conical.

3. The nasoenteric tube cleaning and unblocking device according to claim 2, characterized in that: A marking line is provided on the side wall of the flexible cleaning rod, near the connecting part, to mark the position of the flexible sleeve and ensure that the bristles and the spray holes are fully exposed.

4. The nasoenteric tube cleaning and unblocking device according to claim 3, characterized in that: The connecting part includes a limiting plate disposed at the end of the flexible cleaning rod. The limiting plate is perpendicular to the axial direction of the flexible cleaning rod. The limiting plate is provided with a connecting tube, which communicates with the hollow part of the flexible cleaning rod. A sealing plug that can be detachably fitted to the connecting tube is provided with it.

5. The nasoenteric tube cleaning and unblocking device according to claim 4, characterized in that: The flexible cleaning rod and the flexible sleeve are in a static friction fit.

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