Nasal tube with two channels

Abstract

The invention discloses a nasal tube with two channels, and relates to the technical field of medical instruments, the nasal tube comprises a tube body, the two ends of the tube body are of opening structures, the opening structure at one end is connected with a first connector, the opening structure at the other end enters the stomach or small intestine along the esophagus after being inserted into the nasal cavity of a patient, and a liquid outlet area is arranged on the outer wall of the end, close to the first connector, of the tube body; an inner pipe is connected to the inner wall of the end, close to the first connector, of the pipe body, one end of the inner pipe extends out of the outer wall of the end, close to the first connector, of the pipe body and is connected with a second connector, the other end of the inner pipe is of a closed structure, and liquid outlet small holes communicated with one another are formed in the side of the closed structure and the surface wall of a liquid outlet area of the pipe body. And the space in the inner pipe and the space in the pipe body are mutually independent. Effective injection of pain relieving liquid medicine is achieved, direct operation through an injector does not need to be frequently used, the contact frequency of external instruments and the nasal cavity is reduced, the risk of nasal cavity infection is reduced, and health and safety of a patient are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a nasal tube with dual channels. Background Technology

[0002] In clinical medicine, nasal tubes are a common and important treatment for many patients requiring long-term nutritional support and gastric care. Nasal tubes mainly include nasoenteric tubes and nasogastric tubes, each with different physiological functions and playing a crucial role in the patient's treatment. A nasoenteric tube is a relatively thin and long medical tube whose main function is to deliver nutritional solutions directly into the small intestine. In clinical applications, for patients with certain gastrointestinal dysfunction who cannot obtain sufficient nutrition through normal food intake, such as patients after severe trauma or major surgery, or patients with digestive system diseases that impair gastrointestinal absorption, a nasoenteric tube can bypass the stomach and precisely deliver nutritional solutions to the small intestine, ensuring that the patient receives the necessary nutrients to maintain normal metabolism and physiological functions. A nasogastric tube, on the other hand, is relatively thick and short, and its main function is to connect to the stomach. In clinical practice, on the one hand, for patients with excessive gastric acid secretion, the nasogastric tube can remove excess gastric acid, preventing gastric acid reflux from corroding the esophagus and gastric mucosa and alleviating the patient's discomfort symptoms; on the other hand, after surgery, some blood may remain in the stomach, and the nasogastric tube can remove this blood in a timely manner, avoiding blood accumulation in the stomach and causing complications such as infection. It also helps to observe the bleeding in the stomach, providing an important basis for doctors to adjust the treatment plan.

[0003] Currently, in clinical practice, nasoenteric tubes and nasogastric tubes are usually inserted into the same nasal cavity simultaneously. Since these two tubes share nasal space and remain in place for up to a month, they inevitably cause continuous mechanical irritation to the nasal mucosa. The nasal mucosa is very delicate, and prolonged pressure and friction from the two tubes can easily trigger pain. This pain is often severe and persistent, causing significant physical and psychological distress to patients and severely impacting their quality of life and treatment adherence.

[0004] To alleviate pain during nasal tube placement, the primary clinical method is currently the injection of analgesics into the nasal cavity. However, existing nasal tube designs do not allow for direct injection of analgesics. In practice, medical staff must use syringes and other tools to slowly inject the analgesics into the nasal cavity. This is not only cumbersome and increases the workload for medical staff, but it also makes it difficult to ensure that the analgesics are accurately and evenly distributed to the irritated areas of the nasal cavity, thus affecting the analgesic effect. Furthermore, frequent injections may increase the risk of nasal infection, further exacerbating the patient's suffering. Summary of the Invention

[0005] The purpose of this invention is to provide a nasal tube with dual channels to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nasal tube with dual channels, comprising a tube body, wherein both ends of the tube body are open structures, wherein one open structure is connected to a connector, and the other open structure is inserted into the patient's nasal cavity and enters the stomach or small intestine along the esophagus. The outer wall of the tube body near the first connector is provided with a liquid outlet area. An inner tube is connected to the inner wall of the tube body near the first connector. One end of the inner tube extends from the outer wall of the tube body near the first connector and is connected to the second connector. The other end of the inner tube is a closed structure, and small liquid outlet holes that communicate with each other are opened on the side of the closed structure and the surface wall of the liquid outlet area of ​​the tube body. The space inside the inner tube is independent of the space inside the tube.

[0007] In a further embodiment, the portion of the inner tube located within the tube body has a flat structure when no analgesic solution is injected, and the inner walls of the flat structure adhere to each other, thereby reducing its space ratio within the tube body.

[0008] In a further embodiment, the inner tube is a smooth-walled PVC pipe with a wall thickness of 1 mm.

[0009] In a further embodiment, the liquid outlet area is an identification area and is coated with a marking color.

[0010] In a further embodiment, a thin adsorption ring is provided on the outer wall of the liquid outlet area, which is flush with the outer wall of the tube. The thin adsorption ring is used to adsorb the analgesic liquid sprayed from the liquid outlet hole, so that it comes into contact with the nasal mucosa in a wetted state.

[0011] In a further embodiment, the tube body has a length of 1.4-1.5m and an inner diameter of 2.4-5mm.

[0012] In a further embodiment, the tube has a length of 0.9-1m and an inner diameter of 5-8mm.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention relates to a nasal tube with dual channels. The inner tube space and the tube body space are independent of each other. According to the patient's pain relief needs, medical staff no longer need to use additional syringes or other tools to slowly inject the analgesic solution. They can simply connect the syringe through connector two to conveniently and quickly inject the analgesic solution into the inner tube. The analgesic solution can be accurately injected into the nasal cavity through the inner tube. Compared with the traditional method of directly injecting analgesic solution with an additional syringe, it avoids the problem of uneven distribution of the solution and ensures that the analgesic solution accurately acts on the parts of the nasal cavity that are compressed and rubbed by the nasal tube, thereby significantly improving the analgesic effect, effectively relieving nasal pain caused by nasal tube placement, reducing the patient's physical and mental suffering, and improving the patient's quality of life and treatment compliance.

[0014] 2. The portion of the inner tube inside the tube body of the present invention has a flat structure when no analgesic solution is injected, and the inner walls of the flat structure fit together, reducing the proportion of space inside the tube body. This prevents the inner tube from excessively occupying nasal space when the tube body is inserted into the nasal cavity, reducing pressure on the nasal mucosa, further reducing the possibility of pain, and also providing patients with a more comfortable indwelling experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of a partial structure of the tube body of the present invention; Figure 3 This is a schematic diagram of a further improved partial structure of the tube body of the present invention; Figure 4 This is a partial cross-sectional view of the inner tube of the present invention being compressed within the tube body; Figure 5 This is a partial cross-sectional view of the expansion structure of the inner tube within the tube body according to the present invention; Figure 6 This is a schematic diagram of the thickened tube structure of the present invention; Figure 7 This is a schematic diagram of the tube structure of the present invention without an inner tube; Figure 8 This is a schematic diagram of the thickened tube structure without an inner tube according to the present invention.

[0016] In the diagram: 1. Tube body; 2. Connector 1; 3. Discharge area; 4. Connector 2; 5. Discharge orifice; 6. Inner tube; 7. Thin adsorption ring. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This embodiment provides a nasal cannula with dual channels, such as... Figure 1 and Figure 2 As shown, it includes a tube body 1, which has open structures at both ends. One open structure is connected to a connector 2, and the other open structure is inserted into the patient's nasal cavity and enters the stomach or small intestine along the esophagus.

[0019] At the same time, such as Figure 2 , Figure 4 and Figure 5 As shown, the outer wall of the tube body 1 near the connector 2 has a liquid outlet area 3, and the inner wall of the tube body 1 near the connector 2 is connected to an inner tube 6. One end of the inner tube 6 extends from the outer wall of the tube body 1 near the connector 2 and is connected to a connector 4. The other end of the inner tube 6 is a closed structure, and the side of the closed structure and the surface of the liquid outlet area 3 of the tube body 1 have interconnected liquid outlet holes 5. There is no need to use additional syringes or other tools to slowly inject the analgesic solution. Just connect the syringe through the connector 4, and the analgesic solution can be conveniently and quickly injected into the inner tube 6 and sprayed into the nasal cavity through the liquid outlet hole 5, thereby quickly delivering the analgesic solution into the nasal cavity. The operation is simpler, the workload of medical staff is reduced, and the work efficiency is improved.

[0020] More importantly, dispensing area 3 is an identification area and is marked with a color, which can be red or blue. Designating dispensing area 3 as an identification area and marking it with a color allows medical personnel to quickly and accurately identify the dispensing area during operation, ensuring that the analgesic solution is accurately injected into the target location. Additionally, as... Figure 3 As shown, a thin absorbent ring 7, flush with the outer wall of the tube body 1, is fitted onto the outer wall of the dispensing area 3. The thin absorbent ring 7 is used to absorb the analgesic liquid dispensed from the dispensing hole 5, allowing it to contact the nasal mucosa in a moistened state, thus enabling the liquid to act on the nasal mucosa for a longer period and enhancing the analgesic effect. At the same time, the outer wall of the thin absorbent ring 7 is flush with the outer wall of the tube body 1 to avoid causing additional irritation to the nasal cavity.

[0021] In this way, the space inside the inner tube 6 is independent of the space inside the tube body 1. By setting up an independent inner tube 6, the analgesic solution can be effectively injected into the nasal cavity. Compared with the traditional method of using a separate syringe to inject the analgesic solution, this avoids the problem of uneven distribution of the solution, ensuring that the analgesic solution accurately acts on the areas of the nasal cavity that are compressed and rubbed by the nasal tube, thereby significantly improving the analgesic effect, effectively relieving nasal pain caused by nasal tube placement, reducing the patient's physical and mental suffering, and improving the patient's quality of life and treatment compliance.

[0022] When no analgesic solution is injected, the portion of the inner tube 6 located within the tube body 1 has a flat structure, and the inner walls of this flat structure adhere closely to each other, thus reducing its space occupation within the tube body 1. This ensures that when the tube body 1 is inserted into the nasal cavity, the presence of the inner tube 6 will not excessively occupy nasal space, reducing pressure on the nasal mucosa and further lowering the likelihood of pain, while also providing a more comfortable indwelling experience for the patient. To further reduce the space occupation of the inner tube 6, it is made of smooth-walled PVC tubing with a wall thickness of 1mm.

[0023] Pipe body 1 is 1.4-1.5m long and has an inner diameter of 2.4-5mm. For example... Figure 6 As shown, this type of tube 1 serves as a nasoenteric tube. It is relatively long and can be inserted into the nasal cavity, travel along the esophagus, and enter the small intestine to allow the patient's nutritional solution to be directly injected into the small intestine, thus meeting the patient's energy needs.

[0024] The length of pipe body 1 is 0.9-1m, and the inner diameter is 5-8mm. For example... Figure 7 As shown, this type of tube 1 serves as a nasogastric tube, which is shorter than a nasointestinal tube but thicker. It is used to suction out secreted gastric acid to prevent stomach wall corrosion or to absorb residual blood from surgery.

[0025] This design offers tube body 1 specifications with different lengths and inner diameters, such as lengths of 1.4-1.5m and inner diameters of 2.4-5mm, and lengths of 0.9-1m and inner diameters of 5-8mm, to meet the clinical needs of different patients. Whether a patient requires simultaneous insertion of a nasoenteric tube and a nasogastric tube, or only a nasogastric tube, or even a nasoenteric tube, the appropriate tube body 1 can be selected according to the actual situation, improving the product's versatility and practicality. The reason for this design is that in clinical practice, there are integrated dual-channel nasal tubes, one channel connecting to the stomach and the other to the small intestine. It is not possible to select only a single channel according to the patient's actual needs. For patients requiring a single channel, this would undoubtedly increase the discomfort and pain during use.

[0026] Clinical Application Method 1: Select one nasogastric tube and one nasoenteric tube, both inserted into the same nasal cavity. This is to leave the other nasal cavity open for inserting an oxygen tube to supply oxygen to the patient. The nasoenteric tube is 1.4-1.5m long and has an inner diameter of 2.4-5mm. Both tubes (1) are inserted simultaneously into the same nasal cavity, traveling along the esophagus to the stomach and small intestine respectively. The nasogastric tube is 0.9-1m long and has an inner diameter of 5-8mm. It is important to note that when inserting two tubes (1) into the same nasal cavity, the type of tube (1) must be carefully selected. Only one tube (1) with an inner tube (6) should be chosen. The other tube (1) should be of a different type. Figure 7 or Figure 8 The tube body 1 shown is sufficient, that is, the tube body 1 without the inner tube 6, which reduces the cost of use.

[0027] When pain relief medication is needed, a syringe filled with pain relief medication is connected via connector 2 (4) to inject the medication into the inner tube 6. The medication then flows out through the outlet hole 5 into the outlet area 3, where it is absorbed by the thin suction ring 7 and comes into contact with the nasal mucosa to relieve pain. When nutrient solution or other therapeutic fluids need to be delivered, the corresponding delivery device is connected via connector 1 (2) to inject the fluid into the tube 1 for delivery.

[0028] Of course, if the patient's nasal cavity is in good condition, has a high pain tolerance, and the expected indwelling time is short with a low risk of pain, to simplify the procedure and reduce costs, a tube body 1 of the same specification but without the inner tube 6 can be selected. One tube body 1 is as follows: Figure 7 The nasoenteric tube shown has another tube 1 as shown. Figure 8 The nasogastric tube shown.

[0029] Clinical Application Method Two: Only a nasogastric tube is needed in the same nasal cavity. Medical staff can choose whether or not to include the inner tube 6 in the tube body 1, depending on the patient's needs. If the patient's nasal cavity is sensitive and significant pain is anticipated during the nasogastric tube placement, a tube body 1 with an inner tube 6, 0.9-1m in length and 5-8mm in inner diameter, should be selected. This tube body 1 should be fabricated and installed according to the steps described in the specific implementation method above, and then inserted into the patient's nasal cavity before entering the stomach.

[0030] When analgesic injection is required, connect the analgesic delivery device via connector 2 (4) for injection; when gastric care fluid or nutritional solution is required, connect the corresponding delivery device via connector 1 (2). If the patient's nasal cavity is in good condition and pain is not expected to be significant during the nasogastric tube placement period, the tube body 1 without the inner tube 6 can be selected and inserted into the patient's nasal cavity in the usual manner for gastric care or nutritional support treatment, without the need for analgesic injection.

[0031] If the patient's nasal cavity is in good condition, has a high pain tolerance, and the expected indwelling time is short with a low risk of pain, then to simplify the procedure and reduce costs, a tube body 1 of the same specifications but without the inner tube 6 can be selected. Figure 8 The nasogastric tube shown.

[0032] Clinical Application Method 3: When a patient requires only a nasogastric tube in the same nasal cavity, medical staff can choose whether or not to use tube body 1 with an inner tube 6, depending on the patient's needs. If the patient's nasal cavity is sensitive and significant pain is anticipated during nasogastric tube placement, tube body 1 with a length of 1.4-1.5m and an inner diameter of 2.4-5mm, featuring an inner tube 6, should be selected and inserted into the small intestine after entering the patient's nasal cavity. If the patient's nasal cavity is in good condition, has a high pain tolerance, and the expected placement time is short with a low risk of pain, to simplify the procedure and reduce costs, tube body 1 of the same specifications but without the inner tube 6 can be selected. Figure 7 The nasoenteric tube shown.

[0033] In summary, in clinical practice, medical staff selectively use tubes of different specifications 1 according to the patient's actual situation to meet the patient's actual needs and minimize the patient's pain.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nasal cannula with dual channels, characterized in that, include: The tube (1) has an open structure at both ends. One open structure is connected to a connector (2), and the other open structure is inserted into the patient's nasal cavity and enters the stomach or small intestine along the esophagus. The outer wall of the tube body (1) near the connector (2) is provided with a liquid outlet area (3). The inner wall of the tube body (1) near the connector (2) is connected to an inner tube (6). One end of the inner tube (6) extends from the outer wall of the tube body (1) near the connector (2) and is connected to a connector (4). The other end of the inner tube (6) is a closed structure, and the side of the closed structure and the surface wall of the liquid outlet area (3) of the tube body (1) are provided with interconnected liquid outlet holes (5). The space inside the inner tube (6) is independent of the space inside the tube body (1).

2. The nasal cannula with dual channels according to claim 1, characterized in that, The portion of the inner tube (6) located inside the tube body (1) is a flat structure when no analgesic solution is injected, and the inner walls of the flat structure are attached to each other, thereby reducing the space ratio inside the tube body (1).

3. The nasal cannula with dual channels according to claim 1, characterized in that, The inner tube (6) is a smooth PVC pipe with a wall thickness of 1mm.

4. The nasal cannula with dual channels according to claim 1, characterized in that, The liquid outlet area (3) is an identification area and is coated with a marking color.

5. The nasal cannula with dual channels according to claim 1, characterized in that, The outer wall of the liquid outlet area (3) is fitted with a thin adsorption ring (7) that is flush with the outer wall of the tube body (1). The thin adsorption ring (7) is used to adsorb the analgesic liquid that is sprayed out from the liquid outlet hole (5) and contact the nasal mucosa in a wet state.

6. The nasal cannula with dual channels according to claim 1, characterized in that, The tube (1) has a length of 1.4-1.5m and an inner diameter of 2.4-5mm.

7. The nasal cannula with dual channels according to claim 1, characterized in that, The tube (1) has a length of 0.9-1m and an inner diameter of 5-8mm.

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