Nasogastric tube with nasal washing function

Abstract

The utility model relates to the technical field of nasogastric tube, and disclose a nasal gastric tube with nasal washing function, include: the main pipe of extension to stomach, constitute the main channel of nutrition delivery, the sub - pipe of main pipe front section is covered, and the independent washing channel is formed between the inner wall of sub - pipe and main pipe outer wall. The nasal gastric tube with nasal washing function, through the combination of main pipe and sub - pipe, the main pipe is used as the main channel of nutrition delivery, the sub - pipe is wrapped in the main pipe front section and forms the independent washing channel, the one - way valve of micro - jet hole and spiral arrangement on the sub - pipe wall realizes liquid one - way ejection, and Y type connector is used for realizing the external interface of double - channel, through above - mentioned design, can complete stomach nutrition supply and nasal cavity washing simultaneously, effectively reduce the risk of rhinitis, sinusitis, solve the problem that the long - time indwelling nasal gastric tube can cause nasal mucosa function to be damaged in the prior art, and because the stomach pipe occupies the nasal cavity, leading to the problem that it is difficult to flush with physiological saline externally.

Description

Technical Field

[0001] This utility model relates to the field of nasogastric tube technology, specifically a nasogastric tube with nasal irrigation function. Background Technology

[0002] Nasogastric tubes are a common clinical treatment widely used for nutritional support and gastrointestinal decompression. However, long-term placement can cause pressure damage to the nasal mucosa, impaired ciliary movement, and decreased mucociliary clearance function, leading to complications such as nasal mucosal damage, olfactory dysfunction, and sinusitis. Studies have shown that regular nasal irrigation can effectively alleviate these problems by clearing secretions and reducing pathogen colonization. However, traditional nasogastric tubes, due to their single-tube structure occupying nasal space, can cause the following issues:

[0003] 1. The outer wall of the gastric tube is tightly attached to the nasal mucosa, forming a closed space. External irrigation solution cannot penetrate deep into the nasal passage and can only wet the surface, resulting in low cleaning efficiency.

[0004] 2. Traditional single-channel gastric tubes cannot achieve simultaneous flushing and suction, and residual secretions continue to irritate the mucosa, exacerbating the inflammatory response.

[0005] Therefore, we propose a nasogastric tube with nasal irrigation function to address the problems mentioned above. Utility Model Content

[0006] This invention provides a nasogastric tube with nasal irrigation function, which can solve the problems in the prior art where indwelling nasogastric tubes may cause pressure damage to the nasal mucosa and make it difficult to rinse with saline solution when occupying the nasal cavity.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A nasogastric tube with nasal irrigation function includes: a main tube extending to the stomach, forming a main channel for nutrient delivery; and a secondary tube covering the front part of the main tube, with an independent irrigation channel formed between the inner wall of the secondary tube and the outer wall of the main tube.

[0009] The secondary pipe wall is provided with spirally arranged micro-spray holes; the micro-spray holes are equipped with a one-way valve structure; one end of the main pipe and the secondary pipe are connected to a Y-type connector, which is used to realize a dual-channel external interface between the main pipe and the secondary pipe.

[0010] Preferably, it also includes a pressure sensor and a temperature sensor located near the end of the secondary pipe.

[0011] Preferably, a heating ring is fitted around the outside of the secondary tube near the temperature sensor. The heating ring is embedded with nickel-chromium alloy resistance wires, which are arranged in a ring and are parallel to the axis of the secondary tube.

[0012] Preferably, a guide strip is provided between the secondary pipe and the main pipe to ensure that the flushing fluid is evenly distributed and flows quickly and stably.

[0013] Preferably, the secondary pipe has a flushing chamber and a drainage chamber that are isolated from each other, and the guide strip separates the flushing chamber and the drainage chamber.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] This invention relates to a nasogastric tube with nasal irrigation function. The main tube serves as the primary channel for nutrient delivery, while the secondary tube provides an independent irrigation channel. This allows for nasal irrigation even with the nasogastric tube in place. Spiral micro-spray holes on the secondary tube wall, through a one-way valve structure, achieve low-pressure atomization, efficiently cleaning the nasal cavity without damaging the mucosa. A Y-connector facilitates connection to different infusion tools, ensuring operational safety. The antibacterial silver ion coating and heating ring on the secondary tube further reduce the risk of infection and protect the nasal mucosa. Temperature and pressure sensors monitor the irrigation fluid status in real time, and the temperature is adjusted via the heating ring to avoid cold stimulation. A guide strip guides the irrigation fluid for even distribution, ensuring efficient cleaning. Simultaneously, a multi-hole suction head and a manual negative pressure bulb enable simultaneous irrigation and suction. This design not only solves the problem of difficult irrigation caused by traditional nasogastric tubes occupying nasal space but also allows for simultaneous gastric nutrient delivery and nasal cleaning, effectively reducing the risk of rhinitis and sinusitis and mucosal damage, thus improving long-term patient comfort and safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the distribution and structure of the micro-spray nozzles and the multi-hole suction head of this utility model;

[0017] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the nasogastric tube of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0020] The components include: 1. Main pipe; 2. Secondary pipe; 3. Micro nozzle; 4. Y-type connector; 5. Antibacterial silver ion coating; 6. Silicone duckbill valve; 7. Heating ring; 8. Guide strip; 9. Flushing chamber; 10. Drainage chamber; 11. Multi-hole suction head; 12. Manual negative pressure ball. Detailed Implementation

[0021] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0022] Example 1:

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A nasogastric tube with nasal irrigation function includes: a main tube 1 extending to the stomach, forming a main channel for nutrient delivery; and a secondary tube 2 covering the front part of the main tube 1, with an independent irrigation channel formed between the inner wall of the secondary tube 2 and the outer wall of the main tube 1.

[0025] The wall of the secondary pipe 2 is provided with spirally arranged micro-spray holes 3; the micro-spray holes 3 are provided with a one-way valve structure; one end of the main pipe 1 and the secondary pipe 2 are connected to a Y-type connector 4, which is used to realize a dual-channel external interface between the main pipe 1 and the secondary pipe 2.

[0026] In the above scheme, the main tube 1 and the secondary tube 2 are combined. The main tube 1 serves as the main channel for nutrient delivery, while the secondary tube 2 wraps around the front end of the main tube 1 to form an independent flushing channel. The spirally arranged micro-spray holes 3 and one-way valves on the wall of the secondary tube 2 enable unidirectional liquid ejection. The Y-type connector 4 is used to realize the external interface of the dual channels. Through the above design, gastric nutrition supply and nasal irrigation can be completed simultaneously, effectively reducing the risk of rhinitis and sinusitis. This solves the problems in the prior art where long-term indwelling nasogastric tubes can lead to damage to the nasal mucosa and make external saline irrigation difficult due to the gastric tube occupying the nasal cavity.

[0027] In one embodiment, the length of the secondary tube 2 is greater than the depth of the nasal cavity, and its end is 30-35 cm from the gastric opening of the main tube 1.

[0028] In the above scheme, the length of the secondary tube 2 is designed to cover the inside of the nasal cavity, which is conducive to irrigation. The end is 30-35cm away from the stomach end to isolate the nasal cavity from the functional area of ​​the stomach, ensuring that the irrigation solution only accurately irrigates the nasal cavity and prevents aspiration or gastric reflux.

[0029] In another embodiment, the one-way valve is a silicone duckbill valve 6, and the opening pressure of the silicone duckbill valve 6 is 5-10 mmHg.

[0030] The nozzle arrangement is designed with 3-5 nozzles per group of spiral nozzles, with an orifice diameter of 0.3-0.5mm. The spiral arrangement matches the folds of the nasal mucosa, forming an atomized liquid flow through the small-diameter nozzles. The spiral distribution expands the coverage area, achieving thorough flushing under low pressure and reducing mucosal damage. The silicone duckbill valve 6 has an opening pressure of 5-10mmHg. Its valve body is embedded inside the nozzle and opens under pressure. The valve only opens when the flushing hydraulic pressure is greater than 5mmHg, preventing backflow of nasal secretions, providing bidirectional barrier against contamination, reducing the risk of cross-infection, and can be integrated with a micro filter to further intercept pathogens.

[0031] In one embodiment, the flushing interface of the Y-type connector 4 is a Luer connector; the flushing interface of the Y-type connector 4 is a Luer connector, which can be adapted to syringes or infusion tubing. The leak-proof design of the Luer connector ensures operational safety, simplifies clinical connection steps, and reduces operational errors.

[0032] Furthermore, the outer surface of the secondary tube 2 is provided with an antibacterial silver ion coating 5; the outer surface of the secondary tube 2 is coated with an antibacterial silver ion layer, and the coating is attached to the tube wall by nanotechnology. The silver ions destroy the bacterial cell membrane and inhibit the formation of biofilm, reducing the risk of nasal infection during long-term indwelling. In addition, the coating combined with sustained-release drugs can enhance the antibacterial effect.

[0033] Furthermore, it also includes a pressure sensor and a temperature sensor located near the end of the secondary tube 2. The pressure sensor and temperature sensor are embedded inside the wall of the secondary tube 2, and their wires extend to an external display to monitor the pressure and temperature of the flushing fluid in real time, so as to avoid high pressure damaging the mucosa or low temperature causing discomfort. The sensor data can be wirelessly transmitted to a mobile terminal to achieve remote monitoring.

[0034] Furthermore, a heating ring 7 is fitted around the outside of the secondary tube 2 near the temperature sensor. The heating ring 7 is embedded with nickel-chromium alloy resistance wires, which are arranged in a ring and parallel to the axis of the secondary tube 2. The temperature sensor monitors the temperature of the rinsing fluid flowing through the secondary tube 2 in real time and transmits the data to the external temperature control module. The temperature control module activates the heating ring 7, and the resistance wires are energized to generate heat. The heat is then conducted to the rinsing fluid in the secondary tube 2 through the silicone substrate, thereby avoiding the cold rinsing fluid from irritating the nasal mucosa and reducing the risk of spasms.

[0035] Furthermore, a guide strip 8 is provided between the secondary pipe 2 and the main pipe 1 to ensure uniform distribution and rapid, stable flow of the flushing fluid. The guide strip 8 separates the secondary pipe 2 from the main pipe 1, forming a stable flow channel. The guide strip 8 is designed in a spiral shape or with longitudinal ribs to guide the laminar flow of the liquid, avoid pressure fluctuations caused by turbulence, uniformly distribute the flushing fluid, and improve cleaning efficiency.

[0036] In another embodiment, the secondary tube 2 is provided with a flushing chamber 9 and a drainage chamber 10 that are isolated from each other, and the guide strip 8 separates the flushing chamber 9 and the drainage chamber 10; a multi-hole suction head 11 is provided at one end of the secondary tube 2 near the nasal cavity. The multi-hole suction head 11 is made of soft rubber and its diameter is smaller than the inner diameter of the nasal cavity. The external end of the drainage chamber 10 is connected to a manual negative pressure ball 12 or a standard negative pressure suction device.

[0037] In the above scheme, the secondary tube 2 and the main tube 1 form an independent flow channel through the longitudinal guide strip 8. After the rinsing fluid is injected into the rinsing chamber 9 of the Y-type connector 4, it forms a laminar flow under the guidance of the guide strip 8 and is evenly atomized and sprayed out through the spiral micro-spray holes 3 on the wall of the secondary tube 2, covering the nasal mucosa to complete the rinsing. At the same time, the guide strip 8 isolates the secondary tube 2 into the rinsing chamber 9 and the drainage chamber 10. The secretions and waste liquid after rinsing are sucked into the drainage chamber 10 through the porous suction head 11 and drained to the outside through the negative pressure generated by the manual negative pressure ball 12 or the standard negative pressure device, realizing the synchronous closed-loop operation of rinsing and suction. The guide structure ensures that the fluids in the two channels do not interfere with each other, and the pressure is stable, clean and efficient. It should be noted that the maximum diameter of the porous suction head 11 is smaller than the inner diameter of the nasal cavity to keep it adapted to the internal space of the nasal cavity and avoid pressure on the nasal mucosa and damage to the mucosa. The diameter of the porous suction head 11 is equal to or slightly thicker than the diameter of the main tube 1.

[0038] How does this nasogastric tube with nasal irrigation function work?

[0039] The system uses the main tube 1 as the primary nutrient delivery channel and the secondary tube 2 as an independent flushing channel, connected externally via a Y-connector 4. The secondary tube 2 is designed to cover the inside of the nasal cavity, with its end 30-35 cm from the stomach to isolate the nasal cavity from the stomach, ensuring the flushing solution precisely irrigates only the nasal cavity. The spirally arranged micro-spray holes 3 and built-in one-way valve on the wall of the secondary tube 2 atomize the flushing solution under low pressure, expanding the coverage area and reducing mucosal damage. The flushing interface of the Y-connector 4 is a Luer connector, easily adaptable to syringes or infusion tubing, ensuring operational safety. The outer surface of the secondary tube 2 is coated with an antibacterial silver ion coating 5 to reduce the risk of nasal infection. Pressure and temperature sensors are located near the proximal end of the secondary tube 2 to monitor the pressure and temperature of the flushing solution in real time, and a heating ring 7 regulates the temperature to avoid cold stimulation. In addition, a guide strip 8 is provided between the secondary pipe 2 and the main pipe 1 to ensure that the flushing fluid is evenly distributed and flows stably. At the same time, the guide strip 8 separates the flushing chamber 9 and the drainage chamber 10. After flushing, secretions and waste liquid are sucked into the drainage chamber 10 through the porous suction head 11, realizing the synchronous closed-loop operation of flushing and suction, ensuring cleanliness and efficiency, and reducing the risk of infection.

[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A nasogastric tube with nasal irrigation function, characterized in that, include: The main tube (1) extends to the stomach and forms the main channel for nutrient delivery; the secondary tube (2) covers the front part of the main tube (1), and an independent flushing channel is formed between the inner wall of the secondary tube (2) and the outer wall of the main tube (1); The wall of the secondary pipe (2) is provided with spirally arranged micro nozzles (3); the micro nozzles (3) are provided with a one-way valve structure; one end of the main pipe (1) and the secondary pipe (2) are connected to a Y-type connector (4), which is used to realize a dual-channel external interface between the main pipe (1) and the secondary pipe (2).

2. The nasogastric tube with nasal irrigation function according to claim 1, characterized in that: The length of the secondary tube (2) is greater than the depth of the nasal cavity, and its end is 30-35 cm from the gastric opening of the main tube (1).

3. The nasogastric tube with nasal irrigation function according to claim 1, characterized in that: The one-way valve is a silicone duckbill valve (6), and the opening pressure of the silicone duckbill valve (6) is 5-10 mmHg.

4. The nasogastric tube with nasal irrigation function according to claim 1, characterized in that: The flushing interface of the Y-type connector (4) is a Luer connector.

5. The nasogastric tube with nasal irrigation function according to any one of claims 1-4, characterized in that: The outer surface of the secondary tube (2) is coated with an antibacterial silver ion coating (5).

6. The nasogastric tube with nasal irrigation function according to claim 5, characterized in that: It also includes a pressure sensor and a temperature sensor located near the end of the secondary pipe (2).

7. The nasogastric tube with nasal irrigation function according to claim 6, characterized in that: A heating ring (7) is attached to the outside of the secondary tube (2) near the temperature sensor. The heating ring (7) is embedded with nickel-chromium alloy resistance wires, which are distributed in a ring and are parallel to the axis of the secondary tube (2).

8. The nasogastric tube with nasal irrigation function according to claim 1, characterized in that: A guide strip (8) is provided between the secondary pipe (2) and the main pipe (1) to ensure that the flushing liquid is evenly distributed and flows quickly and stably.

9. The nasogastric tube with nasal irrigation function according to claim 5, characterized in that: The secondary pipe (2) is equipped with a flushing chamber (9) and a drainage chamber (10) that are isolated from each other, and the guide strip (8) separates the flushing chamber (9) and the drainage chamber (10).

10. The nasogastric tube with nasal irrigation function according to claim 9, characterized in that: The secondary tube (2) is equipped with a multi-hole suction head (11) near the nasal cavity. The multi-hole suction head (11) is made of soft rubber and its central diameter is smaller than the nasal cavity diameter. The external end of the drainage cavity (10) is connected to a manual negative pressure ball (12) or a standard negative pressure suction device.

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