Gastric tube device

Abstract

The application provides a gastric tube device, which comprises a main pipe and a sub-pipe, a lower part of the main pipe is provided with a balloon, the sub-pipe is formed in a pipe wall of the main pipe, a lower end of the sub-pipe is connected to the balloon, an upper end of the sub-pipe extends to an outside from an upper part of the main pipe, the sub-pipe is used for inflating or deflating the balloon, after the balloon is inflated, the outside is in a conical shape, a diameter of an upper part of the conical shape is smaller than that of a lower part, the upper part of the balloon is used for being inserted into a cardia position of a stomach after the balloon is inflated, and the cardia is blocked, a nasal fixation assembly is vertically arranged on the upper part of the main pipe, the nasal fixation assembly is located outside a nostril of a subject, an upper part of the nasal fixation assembly is fixed on an outer peripheral surface of the main pipe, and a lower part of the nasal fixation assembly is supported outside the nostril which is inserted into the main pipe.

Description

Technical Field

[0001] This application relates to a medical device, and more particularly to a gastric tube device. Background Technology

[0002] A nasogastric tube is a common clinical tube used to assist patients in ingesting liquid food or medications, especially important for elderly patients unable to eat orally or for patients on invasive ventilators. It is typically inserted through the nostril, with the lower end reaching the patient's stomach. Due to physiological decline in elderly patients, the irritation of the stomach by the nasogastric tube, and other medical conditions, reflux of gastric contents is common, leading to aspiration and potentially serious complications such as aspiration pneumonia. Currently, elevating the head of the bed by 30°-45° is often used clinically to reduce reflux using gravity, but the effectiveness is limited.

[0003] CN215084006U addresses the problem of gastric reflux by proposing a gastric tube device. This device features a balloon at the lower part of a main inlet tube. The balloon inflates and holds itself within the esophagus, thus preventing gastric contents from refluxing into the patient's mouth and nose. To facilitate balloon inflation and deflation, a sub-tube is formed within the wall of the main inlet tube. The lower end of the sub-tube connects to the balloon, and the upper end extends to the outside of the upper part of the main inlet tube. A connector is installed at the upper end of the sub-tube to inflate or deflate the balloon using a syringe.

[0004] Although the gastric tube device of CN215084006U can prevent gastric contents from refluxing into the patient's mouth and nose, gastric contents can still reflux out of the cardia and enter the esophagus; in addition, the balloon can easily cause damage to the esophagus when it is stuck in the esophagus. Utility Model Content

[0005] In view of the above problems, this application aims to provide a gastric tube device that can effectively prevent gastric contents from flowing back out of the cardia.

[0006] The gastric tube device of this application includes a main tube and a sub-tube. A balloon is formed in the lower part of the main tube. The sub-tube is formed in the wall of the main tube and its lower end is connected to the balloon. The upper end of the sub-tube extends from the upper part of the main tube to the outside. The sub-tube is used to inflate or deflate the balloon. After the balloon is inflated, its external shape is conical, with the diameter of the upper part of the cone being smaller than the diameter of the lower part; after the balloon is inflated, its upper part is used to insert into the cardia of the stomach to block the cardia; A nasal fixation component is vertically installed on the upper part of the main tube, and the nasal fixation component is located outside the subject's nostril; the upper part of the nasal fixation component is fixed to the outer peripheral surface of the main tube, and the lower part of the nasal fixation component is supported outside the nostril into which the main tube is inserted.

[0007] Preferably, the nasal fixation assembly includes: a first ring body, a second tube body, and a nut; The first ring body supports the outside of the subject's nostrils through its first side; The outer circumferential surface of the second pipe body has an external thread; the second pipe body is composed of two semi-circular half-pipes with a cross-section of semi-circular; a nut is installed on the outside of the second pipe body; the nut is used to fix the two half-pipes on the outside; the inner diameter of the second pipe body is equal to the outer diameter of the main pipeline; multiple elastic support ribs are integrally formed between the second pipe body and the first ring body.

[0008] Preferably, the plurality of elastic support ribs are evenly arranged along the circumference of the first ring.

[0009] Preferably, each elastic support rib is formed in a curved shape.

[0010] Preferably, the inner circumferential surface of the second tube is formed as a rough surface.

[0011] The gastric tube device of this application uses a conical balloon to block the cardia, effectively preventing gastric contents from entering the esophagus from the cardia. The gastric tube device is secured to the upper part of the main tube via a nasal fixation component, preventing the balloon from sliding down into the stomach and ensuring that the cardia is effectively blocked by the conical balloon. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the gastric tube device of this application.

[0013] Figure 2 This is a side view of the gastric tube device of this application.

[0014] Figure 3 This is a three-dimensional structural diagram of the nasal fixation component of the gastric tube device of this application.

[0015] Figure 4 This is a side view of the nasal fixation component of the gastric tube device of this application. Detailed Implementation

[0016] The gastric tube device of this application will now be described in detail with reference to the accompanying drawings.

[0017] The gastric tube device of this application includes a main tube 10 and a sub-tube 11. A balloon 12 is formed in the lower part of the main tube 10. The sub-tube 11 is formed in the wall of the main tube 10, and its lower end is connected to the balloon 12. The upper end of the sub-tube 11 extends from the upper part of the main tube 10 to the outside. The sub-tube 11 is used to inflate or deflate the balloon 12. These are all the same as those in the prior art.

[0018] The difference in this application is that after the balloon 12 is inflated, its external shape is conical, and the diameter of the upper part of the cone is smaller than the diameter of the lower part; after the balloon 12 is inflated, its upper part is used to insert into the cardia of the stomach to block the cardia.

[0019] A nasal fixation component 20 is vertically mounted on the upper part of the main tube 10, located outside the subject's nostril; the upper part of the nasal fixation component 20 is fixed to the outer peripheral surface of the main tube 10, and the lower part of the nasal fixation component 20 is supported outside the nostril into which the main tube is inserted. In this way, once the main tube is fixed, it cannot slide downwards or upwards.

[0020] The nasal fixation assembly 20 includes: a first ring body 21, a second tube body, and a nut 22.

[0021] The first ring body supports the outside of the subject's nostrils through its first side; The outer circumferential surface of the second pipe body has external threads. The second pipe body is composed of two semi-circular half-pipes, namely the first half-pipe 23a and the second half-pipe 23b. A nut 22 is installed on the outside of the second pipe body. The nut 22 is used to fix the two half-pipes on the outside so that they together form the second pipe body. The inner diameter of the second pipe body is equal to the outer diameter of the main pipeline 10. Multiple elastic support ribs 24 are integrally formed between the second pipe body and the first ring body 21. The multiple elastic support ribs 24 are evenly arranged along the circumference of the first ring body 21. Each elastic support rib 24 is formed in a curved shape. The inner circumferential surface of the second pipe body is formed as a rough surface to increase the bonding force between the second pipe body and the outer surface of the main pipeline.

[0022] Before use, the nut of the nasal fixation component is unscrewed from the second tube and fitted onto the main tube. During use, the balloon is in a contracted state. The main tube is inserted into the stomach through the patient's nostril, positioning the balloon inside the stomach. Inflation of the balloon is achieved by injecting air into the balloon through the sub-tube. The main tube is then pulled outwards, causing the upper part of the inflated, cone-shaped balloon to insert into the cardia and block it. Depending on the patient's condition, the nasal fixation component without the nut is slid towards the patient's nostril. Because the nut is not installed, the clamping force of the two half-tubes on the main tube is limited, allowing the operator to easily overcome this clamping force and slide the nasal fixation component. After the first ring body is supported against the outside of the nostril, further pushing the second tube body causes elastic deformation of the elastic support ribs, ensuring the cone-shaped balloon's sealing force on the cardia. After adjusting the position of the nasal fixation component, the nut is reinstalled on the second tube body, ensuring it is firmly secured to the main tube, thus completing the fixation of the entire gastric tube device. Because the balloon blocks the cardia, stomach contents cannot reflux into the esophagus.

Claims

1. A gastric tube device comprising a main tube and a sub-tube, wherein a balloon is formed in the lower portion of the main tube; the sub-tube is formed in the wall of the main tube, and its lower end is connected to the balloon; the upper end of the sub-tube extends from the upper portion of the main tube to the outside; the sub-tube is used for inflating or deflating the balloon; characterized in that: After the balloon is inflated, its external shape is conical, with the diameter of the upper part of the cone being smaller than the diameter of the lower part; after the balloon is inflated, its upper part is used to insert into the cardia of the stomach to block the cardia; A nasal fixation component is vertically installed on the upper part of the main tube, and the nasal fixation component is located outside the subject's nostril; the upper part of the nasal fixation component is fixed to the outer peripheral surface of the main tube, and the lower part of the nasal fixation component is supported outside the nostril into which the main tube is inserted.

2. The gastric tube device according to claim 1, characterized in that: The nasal fixation assembly includes: a first ring, a second tube, and a nut; The first ring body supports the outside of the subject's nostrils through its first side; The outer circumferential surface of the second pipe body has an external thread; the second pipe body is composed of two semi-circular half-pipes with a cross-section of semi-circular; a nut is installed on the outside of the second pipe body; the nut is used to fix the two half-pipes on the outside; the inner diameter of the second pipe body is equal to the outer diameter of the main pipeline; multiple elastic support ribs are integrally formed between the second pipe body and the first ring body.

3. The gastric tube device according to claim 2, characterized in that: The multiple elastic support ribs are evenly arranged along the circumference of the first ring.

4. The gastric tube device according to claim 3, characterized in that: Each elastic support bar is formed in a curved shape.

5. The gastric tube device according to claim 2, characterized in that: The inner circumferential surface of the second tube is formed into a rough surface.

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