A novel easy-to-place, anti-clogging, and highly tolerant nasogastric tube
By introducing spiral grooves, antibacterial coatings, and radiopaque lines into the nasogastric tube, the problems of blockage and nasal cavity damage caused by the hardness of traditional nasogastric tube materials have been solved, achieving higher tolerance and insertion accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG AOKE MEDICAL EQUIP CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-26
AI Technical Summary
The existing nasogastric tubes are made of relatively rigid materials, which can cause discomfort to patients during insertion, easily leading to damage, inflammation or ulceration of the nasal mucosa, and are prone to blockage, especially in patients with narrow or sensitive nasal cavities.
A novel, easily inserted, anti-clogging, and highly tolerant nasogastric tube has been designed. It employs technologies such as spiral grooves, antibacterial coatings, barium sulfate imaging lines, and micro-MEMS sensors. By rotating the tube, it reduces the risk of blockage, inhibits biofilm formation, and improves insertion accuracy and comfort.
It reduces the risk of nasal obstruction, minimizes damage to the nasal mucosa, improves the ease and accuracy of intubation, and enhances the tolerance and safety of the catheter.
Smart Images
Figure CN224269775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nasogastric tubes, and more specifically, to a novel easy-to-place, anti-clogging, and highly resistant nasogastric tube. Background Technology
[0002] A nasogastric tube is a medical catheter inserted into the stomach through the nasal cavity. It is mainly used for temporary medical support, delivering liquid food or nutritional solutions to patients who are unable to eat orally to maintain the body's metabolic needs. However, existing nasogastric tubes have the following drawbacks in use:
[0003] Traditional gastric tubes are made of relatively hard materials, which can cause discomfort to patients during insertion, especially those with narrow or sensitive nasal cavities. Insufficient dissolution of medication or incomplete flushing after injection can easily lead to tube adhesion and blockage. Long-term indwelling of the tube can also cause problems such as damage, inflammation or ulceration of the nasal mucosa. Therefore, a new type of easy-to-place, anti-blockage, and highly tolerant nasogastric tube is proposed. Utility Model Content
[0004] The purpose of this invention is to address the problems of traditional gastric tubes, which are made of hard materials, causing discomfort to patients during insertion, especially those with narrow or sensitive nasal cavities. In addition, incomplete dissolution of medication or inadequate flushing after injection can easily lead to tube adhesion and blockage, and long-term indwelling of the tube can easily cause damage, inflammation or ulceration of the nasal mucosa.
[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0006] A new type of easy-to-place, anti-clogging, and highly tolerant nasogastric tube was developed to improve the above-mentioned problems.
[0007] The present invention is as follows: it includes a nasogastric tube body, one end of which is connected to a protective cap, and the other end of which has a spiral groove on its inner wall. An antibacterial coating is provided on the outer wall of the end of the nasogastric tube body near the protective cap, and the end of the nasogastric tube body away from the protective cap is tapered.
[0008] As a preferred technical solution of this utility model, a barium sulfate imaging line is provided inside the wall of the nasogastric tube body, and a fluorescent marker point is provided on the side of the barium sulfate imaging line near the spiral groove.
[0009] As a preferred technical solution of this utility model, the antibacterial coating is made of a composite layer of silver ions and chitosan.
[0010] As a preferred technical solution of this utility model, a micro MEMS sensor is fixedly connected to the inner wall of one end of the nasogastric tube body near the spiral groove, and the micro MEMS sensor is connected to an external medical display via Bluetooth.
[0011] As a preferred technical solution of this utility model, a hydrophilic coating is provided on the outer wall of the end of the nasogastric tube body away from the protective cap, and the hydrophilic coating is made of polyvinylpyrrolidone.
[0012] As a preferred technical solution of this utility model, the interior of the spiral groove is provided with an anti-adhesion coating, and the anti-adhesion coating is made of polytetrafluoroethylene.
[0013] As a preferred technical solution of this utility model, the nasogastric tube body is made of medical-grade thermoplastic polyurethane.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. With its protective cap, spiral groove, antibacterial coating, and tapered nasogastric tube body, the spiral groove forces the fluid to rotate during use. The centrifugal force generated by the rotation throws particulate matter (such as protein and fat particles) in the fluid toward the center of the tube, reducing the probability of them contacting the tube wall and thus reducing the risk of blockage. The antibacterial coating inhibits biofilm formation and reduces damage to the nasal mucosa. The tapered nasogastric tube body makes it easier to insert the nasogastric tube body into the patient's nasal cavity and esophagus.
[0016] 2. With the barium sulfate imaging line and fluorescent markers, the barium sulfate imaging line clearly shows the overall direction of the nasogastric tube under X-ray during use, ensuring that one end of the nasogastric tube is not bent, coiled or accidentally entered the airway in the body. The fluorescent markers enhance the visibility of key locations and help determine whether one end of the nasogastric tube has reached the stomach. Attached Figure Description
[0017] Figure 1 A schematic diagram of the structure of the novel easy-to-place, anti-clogging, and highly resistant nasogastric tube provided by this utility model;
[0018] Figure 2 Left view of the novel easy-to-place, anti-clogging, high-tolerance nasogastric tube provided by this utility model;
[0019] Figure 3 The novel easy-to-place, anti-clogging, and highly resistant nasogastric tube provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;
[0020] Figure 4 A schematic diagram of the structure of the novel easy-to-place, anti-blockage, high-tolerance nasogastric tube micro-MEMS sensor provided by this utility model;
[0021] Figure 5 The novel easy-to-place, anti-clogging, and highly resistant nasogastric tube provided by this utility model Figure 3 Enlarged view of point A in the middle.
[0022] The diagram shows: 1. Nasogastric tube body; 2. Protective cap; 3. Spiral groove; 4. Antibacterial coating; 5. Barium sulfate radiopaque line; 6. Fluorescent marker; 7. Micro MEMS sensor; 8. Hydrophilic coating; 9. Anti-adhesion coating. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] like Figure 1-5 As shown, this embodiment proposes a novel easy-to-place, anti-clogging, and highly tolerant nasogastric tube, including a nasogastric tube body 1. One end of the nasogastric tube body 1 is connected to a protective cap 2, and the inner wall of the other end of the nasogastric tube body 1 is provided with a spiral groove 3. An antibacterial coating 4 is provided on the outer wall of the end of the nasogastric tube body 1 near the protective cap 2, and the end of the nasogastric tube body 1 away from the protective cap 2 is conical. In use, the conical end of the nasogastric tube body 1 can be more easily inserted into the patient's body. The spiral groove 3 can force the fluid to rotate during the flow process. The centrifugal force generated by the rotational flow throws particulate matter (such as protein and fat particles) in the fluid toward the center of the lumen of the nasogastric tube body 1, reducing the probability of them contacting the inner wall of the nasogastric tube body 1, thereby reducing the risk of deposition. Then, the antibacterial coating 4 can inhibit the formation of biofilm and avoid damage to the patient's nasal mucosa.
[0028] like Figure 5As shown, a barium sulfate imaging line 5 is provided inside the wall of the nasogastric tube body 1, and a fluorescent marker 6 is provided on the side of the barium sulfate imaging line 5 near the spiral groove 3. During use, the barium sulfate imaging line 5 clearly shows the overall orientation of the nasogastric tube body 1 under X-ray, preventing one end of the nasogastric tube body 1 from accidentally entering the airway. The fluorescent marker 6 enhances the visibility of key positions, helps determine whether one end of the nasogastric tube body 1 has reached the stomach, and improves the accuracy of inserting the nasogastric tube body 1.
[0029] like Figure 1 As shown, the antibacterial coating 4 is made of a composite layer of silver ions and chitosan. After the silver ions and chitosan combine, they can target the extracellular polysaccharides and proteins secreted by bacteria, thereby disrupting the adhesion and stability of the biofilm. Chitosan interferes with bacterial quorum sensing signaling molecules, inhibiting the formation and maturation of the biofilm and preventing damage to the patient's nasal mucosa.
[0030] like Figure 4 As shown, a miniature MEMS sensor 7 is fixedly connected to the inner wall of the nasogastric tube body 1 near the spiral groove 3. The miniature MEMS sensor 7 is connected to an external medical display via Bluetooth. The miniature MEMS sensor 7 can monitor changes in pressure inside the nasogastric tube body 1, provide early warning of blockage risk, and transmit data to the external medical display via Bluetooth when blockage occurs, so that caregivers can be notified.
[0031] like Figure 5 As shown, a hydrophilic coating 8 is provided on the outer wall of the end of the nasogastric tube body 1 away from the protective cap 2. The hydrophilic coating 8 is made of polyvinylpyrrolidone. The hydrophilic coating 8 made of polyvinylpyrrolidone has the characteristic of being lubricated by water, reducing the frictional resistance between the end of the nasogastric tube body 1 and the patient's nasal cavity and esophagus.
[0032] like Figure 5 As shown, the spiral groove 3 has an anti-adhesion coating 9 inside, and the anti-adhesion coating 9 is made of polytetrafluoroethylene (PTFE). The PTFE anti-adhesion coating 9 can reduce the adsorption rate of proteins and fats, further improving the anti-clogging effect.
[0033] like Figure 1 As shown, the nasogastric tube body 1 is made of medical-grade thermoplastic polyurethane. The nasogastric tube body 1 made of medical-grade thermoplastic polyurethane exhibits 20% increased flexibility at body temperature, improving patient comfort.
[0034] Specifically, when using this novel easy-to-place, anti-clogging, and highly resistant nasogastric tube: the device is inserted into the patient's body. The conical nasogastric tube body 1 allows for easier entry into the patient's body. Furthermore, the hydrophilic coating 8 made of polyvinylpyrrolidone provides water lubrication, reducing frictional resistance between the end of the nasogastric tube body 1 and the patient's nasal cavity and esophagus, thus improving the ease of placement. The barium sulfate imaging line 5 clearly shows the overall orientation of the nasogastric tube body 1 under X-ray, preventing accidental entry into the airway. Fluorescent markers 6 enhance the visibility of key locations, aiding in determining whether the end of the nasogastric tube body 1 has reached the stomach. During feeding, the spiral groove 3 forces the fluid to rotate during flow. The centrifugal force generated by the rotation throws particles in the fluid towards the center of the nasogastric tube body 1 lumen, reducing the probability of contact with the inner wall of the nasogastric tube body 1, thereby reducing the risk of deposition. Finally, the antibacterial coating 4 inhibits biofilm formation, preventing damage to the patient's nasal mucosa.
[0035] All technical features in this embodiment can be freely combined according to actual needs.
[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A new type of easy-to-place anti-blocking high-tolerant nasogastric tube comprising a nasogastric tube body (1), characterized in that, One end of the nasogastric tube body (1) is connected to a protective cap (2), and a spiral groove (3) is provided on the inner wall of the other end of the nasogastric tube body (1). An antibacterial coating (4) is provided on the outer wall of the end of the nasogastric tube body (1) near the protective cap (2), and the end of the nasogastric tube body (1) away from the protective cap (2) is conical.
2. The novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, The nasogastric tube body (1) has a barium sulfate imaging line (5) inside its wall, and a fluorescent marker (6) is provided on the side of the barium sulfate imaging line (5) near the spiral groove (3).
3. The novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, The antibacterial coating (4) is made of a composite layer of silver ions and chitosan.
4. The novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, A micro MEMS sensor (7) is fixedly connected to the inner wall of one end of the nasogastric tube body (1) near the spiral groove (3), and the micro MEMS sensor (7) is connected to an external medical display via Bluetooth.
5. A novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, A hydrophilic coating (8) is provided on the outer wall of the end of the nasogastric tube body (1) away from the protective cap (2), and the hydrophilic coating (8) is made of polyvinylpyrrolidone.
6. A novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, The spiral groove (3) is provided with an anti-adhesion coating (9), which is made of polytetrafluoroethylene.
7. A novel easy-to-place, anti-clogging, high-tolerance nasogastric tube according to claim 1, characterized in that, The nasogastric tube body (1) is made of medical-grade thermoplastic polyurethane.