A nasogastric feeding tube for balloon dilation

Abstract

The present invention relates to the technical field of nasogastric tubes, specifically a nasogastric tube for balloon dilatation, comprising a nasogastric tube body, one end of the nasogastric tube body is connected to an expansion air bag, the other end is connected to a nasogastric tube joint, the nasogastric tube body is provided with a main airflow channel, the nasogastric tube joint is connected to a spherical extrusion air bag, the outer side surface of one end of the nasogastric tube body is provided with an air bag groove, the expansion air bag is provided with an expansion air bag reinforcement wire inside, the spherical extrusion air bag is provided with a spherical air bag reinforcement wire inside, the expansion air bag is provided with a self-tapping joint for sliding inside, and when the spherical extrusion air bag is deformed, the self-tapping joint slides horizontally. The present invention achieves the purpose of intubation by cyclically extruding the spherical extrusion air bag, and then passing the nasogastric tube body from the esophagus to the patient's stomach. The self-tapping joint rotates during the pushing process, plays the role of a micro drill, and is convenient for pushing the nasogastric tube body into the esophagus, and the nasogastric tube will not be bent or folded.

Description

Technical Field

[0001] The invention relates to a nasogastric feeding tube for balloon dilatation, in particular to a nasogastric feeding tube for balloon dilatation, belonging to the technical field of nasogastric feeding tubes. Background Art

[0002] Nasogastric feeding is a method of inserting a gastric tube into the stomach through the nasal cavity and injecting liquid food, medicine or water through the gastric tube. This method is suitable for patients who cannot eat normally, have oral diseases, impaired consciousness, coma, etc. The nasogastric feeding tube reaches the stomach through the pharynx and esophagus, and after connecting the syringe, water and food are delivered to the patient's stomach, helping patients who cannot swallow independently to provide water and food, and injecting nutritious liquid food through the gastric tube to take in enough protein, water, medicine and calories, thereby maintaining the body's required nutrition and drug intake.

[0003] When a nasogastric feeding tube enters the stomach or intestine, it is difficult to pass the nasogastric feeding tube into the stomach when the intestinal area is relatively narrow or the patient's esophagus is injured. The current nasogastric feeding tube is inserted into the patient's stomach through a guide wire or directly. This method will bend or fold when encountering narrow parts and easily cause damage to the stomach. Therefore, it is difficult to use on special patients.

[0004] Therefore, it is urgent to improve the nasogastric feeding tube to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a nasogastric tube for balloon dilatation. By cyclically squeezing the spherical squeezing airbag, the nasogastric tube body is passed from the esophagus to the patient's stomach to complete the purpose of intubation. The self-tapping joint will rotate during the pushing process and play the role of a micro drill, which facilitates the pushing of the nasogastric tube body into the esophagus without bending or folding of the nasogastric tube.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] A nasogastric tube for balloon dilation, comprising a nasal puncture tube body, one end of the nasal puncture tube body is connected to an expansion air bag, the other end of the nasal puncture tube body is connected to a nasal puncture tube joint, the nasal puncture tube body is provided with an air flow main channel, the nasal puncture tube joint is fixedly connected to a spherical extrusion air bag through a ventilating tube, and the spherical extrusion air bag is connected to an inner protection part of the expansion air bag through the air flow main channel;

[0008] An airbag groove is provided on the outer side of one end of the nasal puncture tube body, the expansion airbag is fixedly arranged inside the airbag groove, an expansion airbag reinforcement wire is fixedly arranged inside the expansion airbag, and a spherical airbag reinforcement wire is fixedly arranged inside the spherical extrusion airbag, the spherical airbag reinforcement wire is a spherical structure, and when the spherical extrusion airbag is not deformed, the expansion airbag reinforcement wire is in a horizontal state;

[0009] The expansion airbag is internally slidably provided with a self-tapping joint, wherein when the spherical extrusion airbag is deformed, the self-tapping joint slides horizontally.

[0010] Preferably, an airbag hole is provided inside the airbag groove, and the airbag hole is connected to the inside of the main airflow channel. An airflow side channel and an inflatable airbag warehouse are provided inside the nasal puncture tube body. An inflatable airbag is fixedly arranged inside the inflatable airbag warehouse, and the inflatable airbag is connected to the inside of the main airflow channel through the airflow side channel.

[0011] Preferably, a joint extrusion plate is fixedly provided on the outer side surface of the self-tapping joint, and the joint extrusion plate is arranged inside the inflatable airbag compartment and abuts against the inflatable airbag, wherein after the inflatable airbag is inflated, the inflatable airbag is used to squeeze the joint extrusion plate.

[0012] Preferably, the inner side surface of the nasal puncture tube body is provided with an internal thread groove on one side of the inflatable airbag warehouse, and the outer side surface of the self-tapping joint is provided with an internal thread clamp corresponding to the internal thread groove, wherein when the inflatable airbag squeezes the self-tapping joint, the self-tapping joint is rotated and advanced.

[0013] Preferably, the nasal puncture tube joint includes a joint support arm, the ventilation tube is fixedly arranged on the joint support arm, a gastroesophageal tube is fixedly arranged on the joint support arm, one end of the gastroesophageal tube is fixedly arranged inside the nasal puncture tube body, and the other end of the gastroesophageal tube is connected to a feeding port;

[0014] One end of the ventilation tube is fixedly arranged inside the main airflow channel, and the other end of the ventilation tube is communicated with the spherical extrusion airbag.

[0015] Preferably, a pressure gauge is fixedly provided in the middle of the ventilation pipe, the pressure gauge is fixedly provided on the joint support arm, and the pressure gauge is connected with the interior of the ventilation pipe.

[0016] Preferably, an airbag handle grip is fixedly provided on the joint support arm, and the airbag handle grip is fixedly provided directly below the spherical extrusion airbag.

[0017] Preferably, a micro camera is fixedly provided on one side of the expansion airbag, and an image line electrically connected to the micro camera is fixedly provided on the outer side of the nasal puncture tube body.

[0018] Preferably, the outer diameter of the nasal puncture tube body is 6 to 10 mm, the inner diameter is 4 to 9 mm, and the inner diameter of the main airflow channel is 1 to 2 mm.

[0019] Preferably, a counterweight is fixedly provided on one end of the self-tapping joint away from the nasal puncture tube joint, and the counterweight is fixedly connected to the self-tapping joint by means of threads.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. When the spherical squeezing airbag is squeezed, the airflow inside the spherical squeezing airbag enters into the interior of the expansion airbag through the main airflow channel. As the airflow inside the expansion airbag increases, the air pressure inside the expansion airbag increases. While the pressure increases, the expansion airbag reinforcement wire on the expansion airbag is deformed. While the expansion airbag reinforcement wire is deformed, the expansion airbag as a whole is expanded. While the expansion airbag is expanding, the esophagus is expanded. After the expansion reaches a certain degree, the hand stops squeezing the spherical squeezing airbag, and then the air inside the expansion airbag is pumped into the interior of the spherical squeezing airbag. The expansion airbag is in a contracted state. Therefore, the nasal puncture tube body can continue to be placed. Through the cyclic squeezing of the spherical squeezing airbag, the nasal puncture tube body is passed from the esophagus to the patient's stomach to complete the purpose of intubation. The structure is simple and the convenience of use is improved.

[0022] 2. An internal thread groove is fixedly provided on the inner side surface of the nasal puncture tube body, and an internal thread clamp corresponding to the internal thread groove is fixedly provided on the outer side surface of the self-tapping joint. In the process of the inflatable airbag pushing the self-tapping joint, the internal thread clamp on the self-tapping joint rotates inside the internal thread groove. Therefore, the self-tapping joint will rotate in the process of being pushed. That is to say, the self-tapping joint will be rotated and pushed, playing the role of a micro drill, which is convenient for pushing the nasal puncture tube body into the esophagus. When squeezing the ball-type squeezing airbag, the airflow will enter the inside of the expansion airbag and the inside of the inflatable airbag at the same time. Therefore, by squeezing the ball-type squeezing airbag, the nasal puncture tube body can be passed into the patient's esophagus relatively quickly.

[0023] 3. A micro camera is fixedly provided on one side of the expansion balloon, which is connected to an external processor through an image line, so as to facilitate medical staff to detect patients. A counterweight is fixedly provided on the end of the self-tapping joint away from the nasal puncture tube joint. The counterweight is fixedly connected to the self-tapping joint by means of threads. A counterweight is connected to one end of the self-tapping joint. Under the action of gravity, the counterweight makes it easier to deliver the nasal puncture tube body into the patient's esophagus, thereby improving the efficiency of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 is a cross-sectional view of the present invention;

[0027] Figure 3 for Figure 2 A magnified view of middle;

[0028] Figure 4 for Figure 2 Enlarged view of middle B;

[0029] Figure 5 A three-dimensional diagram of the nose piercing tube connector of the present invention;

[0030] Figure 6 It is a cross-sectional view of the nose piercing tube connector of the present invention;

[0031] Figure 7 It is a stereoscopic view of the self-tapping joint of the present invention.

[0032] In the figure, 1. nasal puncture tube body; 101. main airflow channel; 102. airbag hole; 103. secondary airflow channel; 104. airbag groove; 105. inflatable airbag compartment; 106. internal thread groove; 2. expansion airbag; 201. expansion airbag reinforcement wire; 3. nasal puncture tube joint; 301. gastroesophageal tube; 302. ventilation tube; 303. feeding port; 304. spherical extrusion airbag; 305. airbag handle grip; 306. joint support arm; 307. pressure gauge; 308. spherical airbag reinforcement wire; 4. self-tapping joint; 401. joint extrusion plate; 402. internal thread clamp; 403. counterweight; 5. inflatable airbag; 6. miniature camera; 7. imaging line. DETAILED DESCRIPTION

[0033] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0034] like Figure 1-Figure 7As shown, the nasogastric feeding tube for balloon dilation provided in this embodiment includes a nasal puncture tube body 1, one end of the nasal puncture tube body 1 is connected to the dilation airbag 2, the other end of the nasal puncture tube body 1 is connected to the nasal puncture tube joint 3, the nasal puncture tube body 1 is provided with a main airflow channel 101, the nasal puncture tube joint 3 is fixedly connected with a spherical extrusion airbag 304 through a ventilation tube 302, the spherical extrusion airbag 304 is connected to the inner protection part of the dilation airbag 2 through the main airflow channel 101, the outer diameter of the nasal puncture tube body 1 is 6-10mm, the inner diameter is 4-9mm, the inner diameter of the main airflow channel 101 is 1-2mm, the dilation airbag 2 is connected to one end of the nasal puncture tube body 1 and the spherical extrusion airbag 304 is connected to the other end, the spherical extrusion airbag 304 is connected to the dilation airbag 2 through the main airflow channel 101, and in the process of placing the nasal puncture tube body 1 into the esophagus, the inner part of the airbag groove 104 is provided There is an airbag hole 102, and the airbag hole 102 is connected to the inside of the main airflow channel 101. Therefore, when the ball-type squeezing airbag 304 is squeezed, the airflow inside the ball-type squeezing airbag 304 enters the inside of the expansion airbag 2 through the main airflow channel 101. As the airflow inside the expansion airbag 2 increases, the air pressure inside the expansion airbag 2 increases. When the pressure increases, the expansion airbag reinforcement wire 201 on the expansion airbag 2 is deformed. When the expansion airbag reinforcement wire 201 is deformed, the expansion airbag 2 is expanded as a whole. When the expansion airbag 2 is expanded, the esophagus is expanded. After the expansion reaches a certain degree, the hand stops squeezing the ball-type squeezing airbag 304, and then the air inside the expansion airbag 2 is pumped into the inside of the ball-type squeezing airbag 304. The expansion airbag 2 is in a contracted state, so the nasal puncture tube body 1 can continue to be placed;

[0035] An airbag groove 104 is provided on the outer side of one end of the nasal puncture tube body 1, and the expansion airbag 2 is fixedly arranged inside the airbag groove 104. An expansion airbag reinforcement wire 201 is fixedly arranged inside the expansion airbag 2, and a spherical airbag reinforcement wire 308 is fixedly arranged inside the spherical extrusion airbag 304. The spherical airbag reinforcement wire 308 is a spherical structure. When the spherical extrusion airbag 304 does not deform, the expansion airbag reinforcement wire 201 is in a horizontal state. The expansion airbag 2 is fixedly arranged with the expansion airbag reinforcement wire 201, and the spherical extrusion airbag 304 is fixedly arranged with the spherical airbag reinforcement wire 308. In the initial state, the expansion airbag reinforcement wire 201 drives the expansion airbag 2 is in a horizontal state, and the spherical airbag reinforcement wire 308 drives the spherical extrusion airbag 304 to be in an expanded state. Therefore, in the process of squeezing the spherical extrusion airbag 304, the spherical extrusion airbag 304 is deformed to discharge the air inside the spherical extrusion airbag 304 into the inside of the expansion airbag 2. When the squeezing of the spherical extrusion airbag 304 is stopped, the spherical extrusion airbag 304 is restored to its original state under the action of the spherical airbag reinforcement wire 308. At the same time, when the expansion airbag reinforcement wire 201 on the expansion airbag 2 is restored to the initial state, the air in the expansion airbag 2 can be pumped into the inside of the spherical extrusion airbag 304, and the expansion airbag 2 is restored to the initial horizontal state.

[0036] Therefore, the nasal puncture tube body 1 can be passed from the esophagus to the patient's stomach by cyclic squeezing of the spherical squeezing airbag 304, thereby achieving the purpose of intubation, with a simple structure and improved convenience of use;

[0037] In addition, an airflow side channel 103 and an inflatable airbag chamber 105 are provided inside the nasal puncture tube body 1. An inflatable airbag 5 is fixedly provided inside the inflatable airbag chamber 105. The inflatable airbag 5 is connected to the inside of the main airflow channel 101 through the airflow side channel 103. A self-tapping joint 4 is slidably provided inside the expansion airbag 2. When the spherical extrusion airbag 304 is deformed, the self-tapping joint 4 slides horizontally. A main airflow channel 101 is provided on the nasal puncture tube body 1. The main airflow channel 101 is connected to the airflow side channel 103. When the airflow flows into the expansion airbag 2, it also flows into the inflatable airbag 5, so that the inflatable airbag 5 expands. The main airflow channel 101, the airbag hole 102 and the airflow side channel 103 are all provided on the nasal puncture tube body 1. The structure is simple. When the nasal puncture tube body 1 is inserted into the esophagus of the patient, it will not get stuck, thereby improving the convenience of use.

[0038] The outer side surface of the self-tapping joint 4 is fixedly provided with a joint extrusion plate 401, which is arranged inside the inflatable airbag compartment 105 and abuts against the inflatable airbag 5. After the inflatable airbag 5 is inflated, the inflatable airbag 5 is used to squeeze the joint extrusion plate 401. The outer side surface of the self-tapping joint 4 is fixedly provided with a joint extrusion plate 401. After the inflatable airbag 5 is inflated, the inflated inflatable airbag 5 squeezes the joint extrusion plate 401, so that the self-tapping joint 4 can be pushed outward;

[0039] In addition, an internal thread groove 106 is provided on the inner side of the nasal puncture tube body 1 at one side of the inflatable airbag chamber 105, and an internal thread clamp 402 corresponding to the internal thread groove 106 is provided on the outer side of the self-tapping joint 4, wherein when the inflatable airbag 5 squeezes the self-tapping joint 4, the self-tapping joint 4 is rotated and pushed forward, and the internal thread groove 106 is fixedly provided on the inner side of the nasal puncture tube body 1, and the internal thread clamp 402 corresponding to the internal thread groove 106 is fixedly provided on the outer side of the self-tapping joint 4. In the process of the inflatable airbag 5 pushing the self-tapping joint 4, the internal thread clamp 402 on the self-tapping joint 4 rotates inside the internal thread groove 106, so the self-tapping joint 4 rotates during the process of being pushed, that is, the self-tapping joint 4 will be rotated and pushed forward, playing the role of a micro drill, which is convenient for pushing the nasal puncture tube body 1 into the esophagus;

[0040] When squeezing the spherical squeezing airbag 304 , the airflow will enter the interior of the expansion airbag 2 and the interior of the inflation airbag 5 , so by squeezing the spherical squeezing airbag 304 , the nasal puncture tube body 1 can be passed into the patient's esophagus more quickly.

[0041] Further, such as Figure 5 and Figure 6 As shown, the nasal puncture tube connector 3 includes a connector support arm 306, a ventilating tube 302 is fixedly arranged on the connector support arm 306, a gastroesophageal tube 301 is fixedly arranged on the connector support arm 306, one end of the gastroesophageal tube 301 is fixedly arranged inside the nasal puncture tube body 1, and the other end of the gastroesophageal tube 301 is connected to a feeding port 303, and the gastroesophageal tube 301 is fixedly arranged on the connector support arm 306, and a nutrient solution can be injected into the patient's body through the feeding port 303 on the gastroesophageal tube 301, one end of the ventilating tube 302 is fixedly arranged inside the main airflow channel 101, and the other end of the ventilating tube 302 is connected to the spherical extrusion airbag 304, and the ventilating tube 302 and the spherical extrusion airbag 304 are both fixed on the connector support arm 306, so as to improve the stability of the spherical extrusion airbag 304;

[0042] The ventilation tube 302 on the joint support arm 306 is fixed inside the nasal puncture tube body 1, and the gastroesophageal tube 301 is fixed inside the main airflow channel 101, so as to improve the overall structural strength and stability of the nasal puncture tube joint 3. A pressure gauge 307 is fixedly arranged in the middle of the ventilation tube 302, and the pressure gauge 307 is fixedly arranged on the joint support arm 306. The pressure gauge 307 is connected to the inside of the ventilation tube 302, and the pressure gauge 307 is connected to the middle of the gastroesophageal tube 301, so as to observe the pressure of the airflow, facilitate observation by medical personnel, and improve the convenience of use;

[0043] An airbag handle grip 305 is fixedly provided on the joint support arm 306, and the airbag handle grip 305 is fixedly provided directly below the spherical squeezing airbag 304. At the same time, an airbag handle grip 305 is fixedly provided on the joint support arm 306. During the process of squeezing the spherical squeezing airbag 304, the airbag handle grip 305 can be held by hand to squeeze the spherical squeezing airbag 304. The structure is simple, certain force points are provided, and convenience of use is improved.

[0044] Furthermore, Figure 1 and Figure 7 As shown, a micro camera 6 is fixedly provided on one side of the expansion balloon 2, and an image line 7 electrically connected to the micro camera 6 is fixedly provided on the outer side of the nasal puncture tube body 1. The micro camera 6 is fixedly provided on one side of the expansion balloon 2, and is connected to an external processor through the image line 7, so that medical personnel can detect the patient conveniently. The micro camera 6 is arranged on the outer side of the nasal puncture tube body 1. During the insertion of the nasal puncture tube body 1, the situation inside the intestine can be observed through the micro camera 6, so that the general position of the front end of the nasogastric feeding tube can be confirmed after the nasal puncture tube body 1 enters the stomach or intestine. A counterweight 403 is fixedly provided on one end of the self-tapping joint 4 away from the nasal puncture tube joint 3. The counterweight 403 is fixedly connected to the self-tapping joint 4 by means of threads, and the counterweight 403 is connected to one end of the self-tapping joint 4. Under the action of gravity, the counterweight 403 is more convenient to deliver the nasal puncture tube body 1 into the patient's esophagus, thereby improving the efficiency of use.

[0045] like Figure 1-Figure 7 As shown, the principle of the nasogastric feeding tube for balloon dilation provided in this embodiment is as follows:

[0046] When the spherical squeezing airbag 304 is squeezed, the airflow inside the spherical squeezing airbag 304 enters the inside of the expansion airbag 2 through the main airflow channel 101. As the airflow inside the expansion airbag 2 increases, the air pressure inside the expansion airbag 2 increases. When the pressure increases, the expansion airbag reinforcement wire 201 on the expansion airbag 2 is deformed. When the expansion airbag reinforcement wire 201 is deformed, the expansion airbag 2 as a whole is expanded. When the expansion airbag 2 is expanded, the esophagus is expanded. After the expansion reaches a certain degree, the hand stops squeezing the spherical squeezing airbag 304, and then the air inside the expansion airbag 2 is pumped into the spherical squeezing airbag 304. The expansion airbag 2 is in a contracted state, so the nasal puncture tube body 1 can continue to be placed;

[0047] An internal thread groove 106 is fixedly provided on the inner side of the nasal puncture tube body 1, and an internal thread clamp 402 corresponding to the internal thread groove 106 is fixedly provided on the outer side of the self-tapping joint 4. When the inflatable airbag 5 pushes the self-tapping joint 4, the internal thread clamp 402 on the self-tapping joint 4 rotates inside the internal thread groove 106. Therefore, the self-tapping joint 4 rotates when being pushed, that is, the self-tapping joint 4 is rotated and pushed forward, playing the role of a micro drill, which facilitates the nasal puncture tube body 1 to be pushed into the esophagus.

[0048] When squeezing the spherical squeezing airbag 304 , the airflow will enter the interior of the expansion airbag 2 and the interior of the inflation airbag 5 , so by squeezing the spherical squeezing airbag 304 , the nasal puncture tube body 1 can be passed into the patient's esophagus more quickly.

[0049] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0050] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0051] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A nasogastric feeding tube for balloon dilatation, comprising a nasogastric tube body (1), characterized in that: One end of the nasal puncture tube body (1) is connected to an expansion airbag (2), and the other end of the nasal puncture tube body (1) is connected to a nasal puncture tube connector (3). The nasal puncture tube body (1) is provided with an airflow main channel (101), and the nasal puncture tube connector (3) is fixedly connected to a spherical extrusion airbag (304) via a ventilating tube (302). The spherical extrusion airbag (304) is connected to the inner protection part of the expansion airbag (2) via the airflow main channel (101); An airbag groove (104) is provided on the outer side surface of one end of the nasal puncture tube body (1); the expansion airbag (2) is fixedly arranged inside the airbag groove (104); an expansion airbag reinforcement wire (201) is fixedly arranged inside the expansion airbag (2); a spherical airbag reinforcement wire (308) is fixedly arranged inside the spherical extrusion airbag (304); the spherical airbag reinforcement wire (308) is a spherical structure; when the spherical extrusion airbag (304) is not deformed, the expansion airbag reinforcement wire (201) is in a horizontal state; The expansion airbag (2) is internally slidably provided with a self-tapping joint (4), wherein when the spherical extrusion airbag (304) is deformed, the self-tapping joint (4) slides horizontally; An airbag hole (102) is provided inside the airbag groove (104), and the airbag hole (102) is connected to the inside of the main airflow channel (101); an airflow secondary channel (103) and an inflatable airbag chamber (105) are provided inside the nasal puncture tube body (1); an inflatable airbag (5) is fixedly arranged inside the inflatable airbag chamber (105), and the inflatable airbag (5) is connected to the inside of the main airflow channel (101) through the airflow secondary channel (103); A joint extrusion plate (401) is fixedly provided on the outer side surface of the self-tapping joint (4), and the joint extrusion plate (401) is arranged inside the inflatable airbag compartment (105) and abuts against the inflatable airbag (5), wherein after the inflatable airbag (5) is inflated, the inflatable airbag (5) is used to squeeze the joint extrusion plate (401); The inner side surface of the nasal puncture tube body (1) is provided with an internal thread groove (106) on one side of the inflatable airbag chamber (105), and the outer side surface of the self-tapping joint (4) is provided with an internal thread clamp (402) corresponding to the internal thread groove (106), wherein when the inflatable airbag (5) squeezes the self-tapping joint (4), the self-tapping joint (4) is rotated and pushed forward.

2. A nasogastric feeding tube for balloon dilatation according to claim 1, characterized in that: The nasal puncture tube connector (3) comprises a connector support arm (306), the ventilation tube (302) is fixedly arranged on the connector support arm (306), a gastroesophageal tube (301) is fixedly arranged on the connector support arm (306), one end of the gastroesophageal tube (301) is fixedly arranged inside the nasal puncture tube body (1), and the other end of the gastroesophageal tube (301) is connected to a feeding port (303); One end of the ventilation tube (302) is fixedly arranged inside the main airflow channel (101), and the other end of the ventilation tube (302) is connected to the spherical extrusion airbag (304).

3. A nasogastric feeding tube for balloon dilatation according to claim 2, characterized in that: A pressure gauge (307) is fixedly arranged in the middle of the ventilation pipe (302); the pressure gauge (307) is fixedly arranged on the joint support arm (306); and the pressure gauge (307) is connected to the inside of the ventilation pipe (302).

4. A nasogastric feeding tube for balloon dilatation according to claim 2, characterized in that: An airbag handle grip (305) is fixedly arranged on the joint support arm (306), and the airbag handle grip (305) is fixedly arranged directly below the spherical extrusion airbag (304).

5. A nasogastric feeding tube for balloon dilatation according to claim 1, characterized in that: A micro camera (6) is fixedly arranged on one side of the expansion air bag (2), and an image line (7) electrically connected to the micro camera (6) is fixedly arranged on the outer side surface of the nasal puncture tube body (1).

6. A nasogastric feeding tube for balloon dilatation according to claim 1, characterized in that: The outer diameter of the nasal puncture tube body (1) is 6 to 10 mm, the inner diameter is 4 to 9 mm, and the inner diameter of the main airflow channel (101) is 1 to 2 mm.

7. A nasogastric feeding tube for balloon dilatation according to claim 1, characterized in that: A counterweight block (403) is fixedly provided at one end of the self-tapping joint (4) away from the nasal puncture tube joint (3), and the counterweight block (403) is fixedly connected to the self-tapping joint (4) by means of threads.

Images