Anti-injury sengstaken-blakemore tube for jejunum nutrition and intragastric decompression

Abstract

The utility model discloses an anti-injury Sengstaken-Blakemore tube for jejunum nutrition and intragastric decompression, which comprises a tube body, the invasion end of the tube body is provided with a double-air-bag structure, the double-air-bag structure comprises an intestine force exerting air bag and a stomach supporting air bag, the tube body is sequentially provided with an intestine bag hole, a stomach drainage port and a stomach bag hole, the intestine bag hole is communicated with the intestine force exerting air bag, and the stomach drainage port is communicated with the stomach supporting air bag. The stomach pouch hole is communicated with the stomach supporting air bag, one end of the tube body is provided with a liquid outlet, an intestinal pouch inflation and exhaust pipe and a stomach pouch inflation and exhaust pipe, and the liquid outlet is communicated with the stomach drainage opening through the stomach tube. Scale marks are arranged on the outer surface of the tube body, and a developing mark layer is embedded in one side of the tube body and used for monitoring the intubation depth and position in real time. Through the design of the double air bags, smooth insertion of the tube body and efficient drainage of liquid in the stomach are achieved, damage and complications of a traditional Sengstaken-Blakemore tube are avoided, the blocking risk is reduced, and a safe and efficient gastrointestinal tract treatment instrument is provided.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression. Background Technology

[0002] Esophageal and gastric variceal bleeding (EGVB) refers to the rupture and bleeding of esophageal and / or gastric varices caused by portal hypertension resulting from conditions such as cirrhosis. When pressure increases or the variceal wall is damaged, the varices may rupture. In the emergency treatment of patients with cirrhosis and portal hypertension complicated by massive bleeding from ruptured esophageal and gastric varices, a three-lumen two-balloon tube is typically used for compression hemostasis, achieving a temporary hemostasis rate of 70%-94%.

[0003] Traditional three-lumen two-balloon tubes consist of several parts: a gastric tube, a gastric balloon, an esophageal balloon, and separate inflation and deflation tubes for the gastric and esophageal balloons. When using this traditional method, traction is required to ensure the balloon effectively compresses and stops bleeding from varicose veins, causing significant pain for the patient and increasing the risk of ulcers and even perforation. After insertion and inflation, doctors cannot accurately determine the actual pressure within the balloon. If the balloon ruptures and leaks, causing the gastric balloon to shrink, traction can easily pull it into the esophagus, causing esophageal tears or even into the pharynx, leading to suffocation and life-threatening situations. Suctioning can also damage the gastric mucosa and cause significant bleeding. Furthermore, traditional gastrointestinal tubes are difficult to insert into the intestines due to the presence of the duodenum. Traditional balloonless gastrointestinal tubes not only increase the difficulty of the procedure for doctors but also increase patient discomfort. Additionally, the presence of a plug makes most gastrointestinal tubes prone to blockage.

[0004] Therefore, there is an urgent need to design a damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression to meet clinical treatment needs. Utility Model Content

[0005] The purpose of this invention is to provide a damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression. This three-lumen two-balloon tube has a simple structure and reasonable design, which can effectively reduce damage to patients.

[0006] The technical solution adopted by this utility model to solve the above problems is: a three-lumen two-balloon tube for jejunal nutrition and gastric decompression, comprising a tube body, wherein the invasive end of the tube body is provided with a double balloon structure, which includes an intestinal support balloon and a gastric support balloon, one end of the tube body is provided with a gastric drainage port, and the other end of the tube body is provided with a drain port, an intestinal balloon inflation and decompression tube and a gastric balloon inflation and decompression tube, the drain port is connected to the gastric drainage port through the gastric tube, the intestinal balloon inflation and decompression tube is connected to the intestinal support balloon, and the gastric balloon inflation and decompression tube is connected to the gastric support balloon.

[0007] Preferably, the intestinal pressure bladder is a balloon that, after being inflated, becomes nearly spherical and adheres to the inner wall of the duodenum.

[0008] Preferably, the invasive end of the tube is provided with an intestinal orifice, and the other end of the tube is provided with an ingestion tube communicating with the intestinal orifice.

[0009] Preferably, the intrusion end of the tube is provided with a plug, and the intestinal orifice is a semi-open hole vertically set on the plug.

[0010] Preferably, the gastric tube and the feeding tube are symmetrically arranged inside the tube and have a circular cross-section. The intestinal pouch inflation and deflation tube and the gastric pouch inflation and deflation tube are symmetrically and vertically arranged on both sides of the line connecting the gastric tube and the feeding tube and have a mushroom-shaped cross-section, and their outlines are bent toward the circular cross-section of the gastric tube and the feeding tube.

[0011] Preferably, the outer surface of the tube is marked with scale markings, with the smallest scale being 20mm. Every 5 smallest scales form a 100mm large scale. The small scales are marked with circles, and the large scales are marked with rectangles.

[0012] Preferably, the tube body has a developing mark layer embedded in the side facing away from the scale markings.

[0013] Preferably, the developing marker layer is made of metal wire.

[0014] Compared with the prior art, this utility model has the following advantages and effects:

[0015] This invention, by employing a dual-balloon structure (an intestinal support balloon and a gastric support balloon), provides additional support points during intubation, thereby assisting the tube in smoothly entering the jejunum and effectively preventing damage to the gastric wall and mucosa during suctioning of gastric contents. The inflated gastric support balloon expands the gastric wall, preventing damage and bleeding during suctioning; it also avoids the serious risks of esophageal tearing or pharyngeal asphyxia associated with traditional traction methods. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the tube body in an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 A partially enlarged structural diagram.

[0018] Figure 3 This is a schematic diagram of the structure of the tube intrusion end in an embodiment of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the tube body according to an embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the scale markings on the surface of the tube in an embodiment of this utility model.

[0021] Figure numbers: Tube body 11, Intestinal support bladder 12, Stomach support bladder 13, Stomach drainage port 14, Drainage port 15, Intestinal bladder inflation and deflation tube 16, Stomach bladder inflation and deflation tube 17, Stomach tube 18, Sealing plug 19, Intestinal opening 21, Feeding tube 22, Plug 23, Scale marking 24, Circular mark 25, Rectangular mark 26, Imaging marking layer 27, Metal wire 28. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0023] Example: See Figure 1 - Figure 5 This embodiment relates to a damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression. Specifically, it is used for jejunal nutrition delivery and gastric contents decompression and drainage, and has particularly good application effects in the treatment of acute bleeding or obstruction caused by gastrointestinal diseases. Specifically, it includes a tube body 11, the invasive end of which is provided with a double-balloon structure, including an intestinal support balloon 12 and a gastric support balloon 13. One end of the tube body 11 is provided with a gastric drainage port 14, and the other end is provided with a drain port 15, an intestinal balloon inflation and deflation tube 16, and a gastric balloon inflation and deflation tube 17. The drain port 15 is connected to the gastric drainage port 14 via a gastric tube 18, the intestinal balloon inflation and deflation tube 16 is connected to the intestinal support balloon 12, and the gastric balloon inflation and deflation tube 17 is connected to the gastric support balloon 13.

[0024] Specifically, in this embodiment, the specific operations are as follows:

[0025] Preoperative preparation: Before the procedure, the airtightness of each balloon (intestinal support balloon 12 and gastric support balloon 13) needs to be checked. Inflation can be performed by connecting the intestinal balloon inflation / deflation tube 16 and the gastric balloon inflation / deflation tube 17 to syringes respectively. The corresponding balloons are then placed in water to check for leaks. After inflating or deflating the balloons, the corresponding tubing must be clamped with hemostatic forceps.

[0026] Intubation: During intubation, the patient should be in a supine position with their head turned to one side, or in a lateral decubitus position. Use a cotton swab dipped in liquid paraffin to lubricate one nostril. Take gauze, dip it in liquid paraffin, and thoroughly lubricate the tube 11 before inserting it along the patient's nostril until the intestinal support balloon 12 and the tube 11 at its tip are inserted into the patient's duodenum, so that the gastric support balloon 13 is in the stomach and close to the esophagus to provide better drainage space for the subsequent gastric drainage port 14.

[0027] Inflation and Fixation: First, air is injected into the intestinal support bladder 12 through the intestinal bladder inflation and deflation tube 16, causing the intestinal support bladder 12 to expand and adhere to the inner wall of the duodenum. This provides more leverage points for intestinal peristalsis, allowing the intrusive end of the tube 11 to continue extending until the tube 11 inside the stomach is straightened. Then, air is injected into the stomach support bladder 13 through the stomach bladder inflation and deflation tube 17, causing it to expand and stretch the stomach wall. A traction force is applied to the other end of the tube 11 (a traction rope can be used to pull a 0.5kg saline bottle, suspended from a traction frame at the foot of the bed) to balance the force of intestinal peristalsis and prevent the tube 11 from penetrating further. In this embodiment, the intestinal support bladder 12 is a balloon, which, after inflation, becomes nearly spherical and adheres to the inner wall of the duodenum. The spherical structure increases the contact area (leverage points) between the intestinal support bladder 12 and the inner wall of the duodenum, making it easier to smoothly enter the intestine with the help of intestinal peristalsis (the contraction and relaxation of intestinal muscles).

[0028] This invention utilizes a double-balloon structure. The intestinal support balloon 12 near the tip provides more support points for intestinal peristalsis, allowing the entire tube 11 to enter the intestine with the peristalsis of the jejunum. The inflating stomach support balloon 13, while suctioning gastric fluid, expands the stomach wall, preventing the gastric drainage port 14 from suctioning the gastric mucosa and causing unnecessary damage and bleeding. Compared to traditional three-lumen two-balloon tubes that use traction balloons to block the esophagus, causing esophageal tears or even being pulled into the pharynx and causing suffocation, posing a life-threatening risk, this invention is relatively safer.

[0029] See Figure 3 In this embodiment, an intestinal orifice 21 is provided at the invasive end of the tube 11, and an ingestion tube 22 communicating with the intestinal orifice 21 is provided at the other end of the tube 11. Nutrients are directly delivered to the intestines through the ingestion tube 22, bypassing the stomach, thus improving nutrient delivery efficiency and reducing the risk of gastrointestinal reflux and blockage, providing the patient with the most basic dietary needs. In this embodiment, paraffin wax can be injected into the intestinal orifice 21 for lubrication during the insertion of the tube 11, making the insertion process smoother. A plug 23 is provided at the invasive end of the tube 11, and the intestinal orifice 21 is semi-open and vertically positioned on the plug 23, reducing scratches to the inner wall of the patient's digestive tract, reducing resistance during insertion, and lowering the chance of blockage. Both the drainage port 15 and the ingestion tube 22 in this embodiment are equipped with sealing plugs 19, which are normally closed when not in use, effectively reducing the entry and exit of contaminants from the tube opening and keeping the tube 11 clean and hygienic.

[0030] See Figure 4The gastric tube 18 and the feeding tube 22 are symmetrically arranged within the tube body 11 and have a circular cross-section. The intestinal pouch inflation and deflation tube 16 and the gastric pouch inflation and deflation tube 17 are symmetrically and perpendicularly arranged on both sides of the line connecting the gastric tube 18 and the feeding tube 22 and have a mushroom-shaped cross-section, with their outlines curving towards the circular cross-section of the gastric tube 18 and the feeding tube 22. The intestinal pouch inflation and deflation tube 16 and the gastric pouch inflation and deflation tube 17 adopt a non-circular design to maximize the use of limited space, ensuring sufficient space for sucking and feeding while ensuring that the overall thickness of the gastrointestinal tube 18 is not too thick.

[0031] See Figure 5 The outer surface of the tube 11 is provided with scale markings 24, with the smallest scale being 20mm. Every 5 smallest scales form a 100mm large scale. The small scales are marked with circular marks 25, and the large scales are marked with rectangular marks 26. The scale markings 24 have high visibility and are helpful for medical staff to judge the insertion depth of the tube 11 at any time.

[0032] See Figure 4 The tube body 11 has a contrast-enhancing marker layer 27 embedded in the side facing away from the scale markings 24. It is clearly visible under X-ray imaging, providing an effective positioning reference for clinical operation and reducing the possibility of cannulation deviation or depth misjudgment. In this embodiment, the contrast-enhancing marker layer 27 is made of metal wire 28, which can increase the flexibility of the tube body 11 and improve the tensile strength of the tube body 11.

[0033] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression, comprising a tube body, characterized in that, The invasive end of the tube is equipped with a double-bag structure, which includes an intestinal support bag and a gastric support bag. One end of the tube is equipped with a gastric drainage port, and the other end of the tube is equipped with a drainage port, an intestinal bag inflation and deflation tube, and a gastric bag inflation and deflation tube. The drainage port is connected to the gastric drainage port through the gastric tube, the intestinal bag inflation and deflation tube is connected to the intestinal support bag, and the gastric bag inflation and deflation tube is connected to the gastric support bag.

2. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 1, characterized in that: The intestinal pressure bladder is a balloon that, when inflated, becomes nearly spherical and adheres to the inner wall of the duodenum.

3. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 1, characterized in that: The tube has an intestinal orifice at its invasive end and an ingestion tube communicating with the intestinal orifice at the other end.

4. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 3, characterized in that: The intrusion end of the tube is provided with a plug, and the intestinal orifice is a semi-open hole vertically set on the plug.

5. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 4, characterized in that: The gastric tube and the feeding tube are symmetrically arranged inside the tube and have a circular cross-section. The intestinal pouch inflation and deflation tube and the gastric pouch inflation and deflation tube are symmetrically and vertically arranged on both sides of the line connecting the gastric tube and the feeding tube and have a mushroom-shaped cross-section, and their outlines are bent toward the circular cross-section of the gastric tube and the feeding tube.

6. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 1, characterized in that: The outer surface of the tube is marked with scale markings. The smallest scale is 20mm, and every 5 smallest scales form a 100mm large scale. The small scales are marked with circles, and the large scales are marked with rectangles.

7. The damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 1, characterized in that: The tube body has a developing mark layer embedded in the side facing away from the scale markings.

8. A damage-resistant three-lumen two-balloon tube for jejunal nutrition and gastric decompression according to claim 7, characterized in that: The developing marker layer is made of metal wire.

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