Three-cavity jejunum nutrition tube with support function
By setting a side hole in the stent structure in the three-lumen jejunal feeding tube, the problem of untimely gastric juice drainage is solved, and gastric juice can be smoothly introduced into the jejunum, preventing aspiration and intestinal disorders, improving the patient's nutritional status and promoting functional recovery.
Patent Information
- Application Number
- CN202422426207.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Traditional three-lumen jejunal feeding tubes can lead to delayed drainage of gastric or intestinal fluids in patients with gastric outflow tract obstruction, causing electrolyte imbalance, malnutrition, and aspiration pneumonia. Furthermore, the inability of acidic gastric fluids to enter the intestines can result in intestinal microecological dysbiosis.
A three-lumen jejunal feeding tube with a support function is designed. The tube contains a decompression chamber, a jejunal feeding chamber, and a pressure regulating chamber. Side holes are distributed on both sides of the obstruction site to allow gastric juice to enter the jejunum smoothly, promoting gastric emptying and intestinal peristalsis.
It effectively prevents gastric reflux and aspiration, improves patients' nutritional status, promotes the recovery of gastrointestinal function, and reduces the occurrence of aspiration pneumonia.
Smart Images

Figure CN223615149U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical devices, and more specifically, to a three-lumen jejunal feeding tube with stent function. Background Technology
[0002] The triple-lumen jejunal feeding tube has a clover-shaped structure, consisting of three chambers: a decompression chamber, a jejunal feeding chamber, and a pressure regulating chamber. Patients with laryngeal cancer, esophageal cancer, coma, or those who have undergone oral surgery and are unable to eat orally or have gastric outflow obstruction require a triple-lumen jejunal feeding tube.
[0003] Traditional three-lumen jejunal feeding tubes have a decompression lumen, a jejunal feeding lumen, and a pressure regulating lumen. The decompression lumen is used for gastric decompression; its distal end is placed at the pylorus, and its proximal end is connected to a negative pressure drainage bag to drain retained gastric juices promptly. However, in patients with gastric outflow tract obstruction, prolonged drainage of gastric or intestinal juices can lead to electrolyte imbalances and worsen malnutrition. Furthermore, obstruction of the lumen can cause delayed drainage of gastric juices, leading to aspiration pneumonia. Additionally, the inability of acidic gastric juices to enter the intestines alters the intestinal pH, disrupting the intestinal microecology and ultimately resulting in malnutrition.
[0004] Therefore, designing a three-lumen jejunal feeding tube with a support function that can effectively open the obstruction and allow gastric or intestinal fluid to smoothly enter the jejunum through the obstruction would have significant clinical practical value. Utility Model Content
[0005] To address the aforementioned deficiencies in the existing technology, this application provides a three-lumen jejunal feeding tube with a stent function. This three-lumen jejunal feeding tube can effectively pass through obstructions, allowing acidic gastric juice to smoothly enter the jejunum, effectively preventing aspiration pneumonia, intestinal microecological disorders, and malnutrition.
[0006] This application provides a three-lumen jejunal feeding tube with a stent function, using the following technical solution:
[0007] A three-lumen jejunal feeding tube with a stent function includes:
[0008] tube body;
[0009] The tube is circular, internally divided into three cavities: a decompression cavity, a jejunal feeding cavity, and a pressure regulating cavity. Each of these cavities is vertically connected and extends to the proximal end of the tube, forming its own independent opening: a decompression cavity opening, an enteral feeding cavity opening, and a pressure regulating cavity opening. These openings are sealed with sealing caps for the decompression cavity, jejunal feeding cavity, and pressure regulating cavity, respectively. The distal openings of the decompression cavity, jejunal feeding cavity, and pressure regulating cavity are located distal to the obstruction site, in the jejunal lumen, proximal to the obstruction site, and on the distal sidewall of the jejunal feeding cavity, respectively.
[0010] Side holes are provided on the side wall of the tube body and communicate with the decompression chamber. There are two sets of side holes, and in use, the two sets of side holes are located on both sides of the obstruction site.
[0011] Optionally, the two sets of side holes are spaced 5 cm apart.
[0012] Optionally, the three-lumen jejunal feeding tube with stent function further includes:
[0013] A marking line is set on the side wall of the tube body and between the two sets of side holes. In use, the marking line corresponds to the obstruction site.
[0014] In summary, this application has the following beneficial effects:
[0015] The three-lumen jejunal feeding tube of this application has a support structure. Specifically, the support structure refers to two sets of side holes distributed on the sidewall of the decompression chamber and communicating with the decompression chamber. The side holes are distributed on both sides of the gastric obstruction site, so that this utility model patent can connect the upper and lower cavities of the obstruction while providing jejunal nutrition, thereby promoting gastric emptying, preventing gastric juice reflux and aspiration, and reducing pneumonia caused by aspiration. At the same time, the drainage of gastric juice into the jejunum can regulate intestinal peristalsis, significantly improve the nutritional status of obstructed patients, promote the recovery of gastrointestinal function, and enable patients to wean off jejunal nutrition as soon as possible. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the three-lumen jejunal feeding tube with stent function in the embodiments of this application (A represents the tube cross-section at AA; B represents the tube cross-section at BB; C represents the tube cross-section at CC-; D represents the tube cross-section at DD; E represents the tube cross-section at EE; F represents the tube cross-section at FF; G represents the tube cross-section at GG; H represents the tube cross-section at HH);
[0017] Reference numerals in the attached drawings: 1. Tube body; 2. Cross-sectional view; 3. Decompression chamber; 4. Jejunal feeding chamber; 5. Pressure regulating chamber; 6. Decompression chamber port; 7. Jejunal feeding chamber port; 8. Pressure regulating chamber port; 9. Decompression chamber sealing cap; 10. Pressure regulating chamber sealing cap; 11. Jejunal feeding chamber sealing cap; 12. Side hole; 13. Marking line. Detailed Implementation
[0018] The structure and effects of this application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the invention, not the entire structure.
[0019] Example: Three-lumen jejunal feeding tube with stent function
[0020] This application discloses a three-lumen jejunal feeding tube with a stent function, referring to... Figure 1 The three-lumen jejunal feeding tube includes a tube body 1, and the inside of the tube body 1 is divided into a decompression chamber 3, a jejunal feeding chamber 4 and a pressure regulating chamber 5, and the decompression chamber 3, the jejunal feeding chamber 4 and the pressure regulating chamber 5 are all channel structures that are connected vertically.
[0021] Reference Figure 1 To achieve the technical solution of this application, the side wall of the tube body 1 is provided with side holes 12, which are configured in two sets and both are connected to the pressure reducing chamber 3. The two sets of side holes 12 are distributed vertically at intervals on the side wall of the tube body 1, with a spacing of 5 cm between the two sets of side holes 12, and a marking line 13 is provided in the middle of the hole. In use, the marking line 13 is set to correspond to the obstruction site, so that the two sets of side holes 12 are located on both sides of the obstruction site, thereby achieving communication.
[0022] Reference Figure 1 The decompression chamber 3, jejunal feeding chamber 4, and pressure regulating chamber 5 all extend to the proximal end of the tube body 1 and form their own independent decompression chamber port 6, jejunal feeding chamber port 7, and pressure regulating chamber port 8, respectively. The decompression chamber port 6 and jejunal feeding chamber port 7 are respectively located on both sides of the pressure regulating chamber port 8. To achieve sealing of the decompression chamber port 6, jejunal feeding chamber port 7, and pressure regulating chamber port 8, decompression chamber sealing cap 9, jejunal feeding chamber sealing cap 11, and pressure regulating chamber sealing cap 10 are also provided. The decompression chamber sealing cap 9, pressure regulating chamber sealing cap 10, and jejunal feeding chamber sealing cap 11 can be separately installed or connected to the decompression chamber port 6, jejunal feeding chamber port 7, and pressure regulating chamber port 8 via connectors.
[0023] The beneficial effects of this invention are as follows: The three-lumen jejunal feeding tube of this application has a lumen support structure that passes through the obstruction site. The lumen support has upper and lower connecting channels inside, which pass through the gastric obstruction site. While providing jejunal nutrition, it can also connect the upper and lower lumens of the obstruction to promote gastric emptying, prevent gastric juice reflux and aspiration, and reduce pneumonia caused by aspiration. At the same time, the gastric juice flowing into the jejunum can regulate intestinal peristalsis, significantly improve the nutritional status of obstructed patients, promote the recovery of gastrointestinal function, and enable patients to wean off jejunal nutrition as soon as possible.
[0024] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. A three-lumen jejunal feeding tube with a support function, characterized in that, include: tube(1); The tube body (1) is internally divided into a decompression chamber (3), a jejunal nutrition chamber (4), and a pressure regulating chamber (5). The decompression chamber (3), jejunal nutrition chamber (4), and pressure regulating chamber (5) are all vertically connected channels, extending to the proximal end of the tube body (1) and forming their respective independent decompression chamber opening (6), jejunal nutrition chamber opening (7), and pressure regulating chamber opening (8). Side holes (12) are provided on the side wall of the tube body (1) and communicate with the decompression chamber (3). The side holes (12) are provided in two sets. In use, the two sets of side holes (12) are located on both sides of the obstruction site.
2. The three-lumen jejunal feeding tube with stent function according to claim 1, characterized in that, The two sets of side holes (12) are spaced 5 cm apart, and both sets of side holes (12) are connected to the decompression chamber (3).
3. The three-lumen jejunal feeding tube with stent function according to claim 1, characterized in that, Also includes: A marking line (13) is provided on the side wall of the tube body (1) and between the two sets of side holes (12). When in use, the marking line (13) corresponds to the obstruction site.
4. The three-lumen jejunal feeding tube with support function according to claim 1, characterized in that, Also includes: The decompression chamber sealing cap (9), the pressure regulating chamber sealing cap (10), and the jejunal nutrition chamber sealing cap (11) are used to seal the decompression chamber port (6), the jejunal nutrition chamber port (7), and the pressure regulating chamber port (8), respectively.