Multi-cavity stomach tube
By designing a multi-lumen gastric tube structure, including a suction lumen, an air injection lumen, and a liquid injection lumen, and equipped with an air bag and graduation lines, the problem of difficulty in determining the length and position of existing single-lumen gastric tubes is solved, achieving efficient and safe gastric tube operation.
Patent Information
- Application Number
- CN202422854891.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing single-lumen gastric tubes are difficult to accurately determine in terms of length and position during use, and require multiple intubations, increasing patient discomfort and operational complexity.
A multi-lumen gastric tube is designed, comprising a suction chamber, an air injection chamber, and a liquid injection chamber, equipped with first and second balloons and graduation lines, enabling multi-functional operation and ensuring accurate insertion depth and safety.
It enables the flexible use of multi-lumen gastric tubes, reduces the risk of repeated intubation, reduces patient discomfort, and improves operational accuracy and safety.
Smart Images

Figure CN223787874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a multi-lumen gastric tube. Background Technology
[0002] In clinical practice, indwelling nasogastric tubes are quite common, primarily used to provide nutritional support and perform gastrointestinal decompression. For comatose patients and those unable to eat orally, nasogastric tubes deliver essential nutrients, fluids, and medications, effectively promoting recovery. Before certain surgeries or for conditions such as pancreatitis, nasogastric tubes are necessary to drain gastric contents and aid recovery. Nasogastric tube placement is a frequent procedure performed by clinical nurses, but it also presents some challenges. For example, the length of silicone nasogastric tubes is difficult to determine during placement, making it hard to confirm their position. Furthermore, single-lumen nasogastric tubes require a connector, increasing clinical workload. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a multi-lumen gastric tube that is convenient, safe, and efficient to use, and has multiple lumens and rich functions.
[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a multi-lumen gastric tube, comprising:
[0005] The gastric tube body has a suction chamber, an air injection chamber and a liquid injection chamber. One end of the gastric tube body is hemispherical and has several drainage holes communicating with the suction chamber. Several through holes communicating with the liquid injection chamber are opened on the side wall of the gastric tube body near the drainage holes. A first air bladder communicating with the air injection chamber is provided on the side wall of the gastric tube body near the drainage holes.
[0006] A connecting seat is installed on the end of the gastric tube body away from the drainage hole. The connecting seat is provided with a suction tube, an air injection tube, and an injection tube that are respectively connected to the suction chamber, the air injection chamber, and the injection chamber. The air injection tube and the injection tube are respectively provided with a first valve and a second valve.
[0007] Preferably, the first air bladder is arranged in a ring on the side wall of the gastric tube body.
[0008] Preferably, a second air bladder communicating with the air injection chamber is provided on the outer side wall of the gastric tube body along its circumferential direction.
[0009] Preferably, the injection chamber is arranged around the suction chamber, and the gas injection chamber is arranged in the suction chamber.
[0010] Preferably, the outer wall of the gastric tube body is provided with graduation lines along its axial direction.
[0011] Preferably, a plurality of the through holes are arranged in a ring array on the outer wall of the gastric tube body.
[0012] With the above structure, this utility model has the following advantages:
[0013] This application designs the gastric tube body as a multi-cavity structure with an air injection cavity, a suction cavity, and a water injection cavity, enabling multiple procedures to be performed with a single insertion, avoiding repeated intubation, reducing patient discomfort, and mitigating the risks of multiple intubations. The first balloon expands the gastric tissue, preventing blockage of the suction hole and affecting drainage. The second balloon seals the gastric tube to prevent reflux. The water injection cavity allows for the delivery of nutrients and medications to the patient's stomach and also facilitates the expulsion of gastric gas, reducing gastrointestinal pressure. It is flexible and convenient to use. The inclusion of graduation lines allows medical staff to quickly and accurately determine the depth of gastric tube insertion, improving the precision and safety of the procedure.
[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the gastric tube.
[0019] As shown in the figure: 1. Gastric tube body; 2. Connecting seat; 3. Suction tube; 4. Injection tube; 5. Inflation tube; 6. Second valve; 7. First valve; 8. Second air bladder; 9. First air bladder; 10. Through hole; 11. Drainage hole; 12. Injection chamber; 13. Suction chamber; 14. Inflation chamber. Detailed Implementation
[0020] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0022] Combined with appendix Figures 1-3 A multi-lumen gastric tube includes a gastric tube body 1 and a connecting seat 2 located at one end of the gastric tube body 1. The connecting seat 2 is provided with a suction tube 3, an air injection tube 5 and an injection tube 4.
[0023] The gastric tube body 1 is made of medical-grade polymer material, which is soft, corrosion-resistant and biocompatible, reducing irritation and damage to the patient's internal tissues. The outer wall of the gastric tube body 1 has scale lines along its axial direction. The scale lines are printed with a wear-resistant material, which makes it easy for medical staff to quickly and accurately judge the depth of gastric tube insertion, ensuring the safety and accuracy of the operation.
[0024] The gastric tube body 1 is provided with a suction chamber 13, an air injection chamber 14 and a liquid injection chamber 12. The liquid injection chamber 12 is arranged around the suction chamber 13, and the air injection chamber 14 is arranged in the suction chamber 13.
[0025] One end of the gastric tube body 1 is hemispherical and has several drainage holes 11 that communicate with the suction cavity 13.
[0026] The gastric tube body 1 has several through holes 10 on the side wall near the drainage hole 11, which are connected to the injection chamber 12. The several through holes 10 are arranged in a ring array on the outer wall of the gastric tube body 1 to ensure that the drug can be evenly distributed and act on the stomach wall.
[0027] A first air bladder 9 is provided on the side wall of the gastric tube body 1 and on the side near the drainage hole 11, which is connected to the air injection chamber 14. The first air bladder 9 is arranged in a ring on the side wall of the gastric tube body 1 to increase the gap between the gastric tube body 1 and the stomach wall, which facilitates suction and injection operations.
[0028] A second air bladder 8, which communicates with the air injection chamber 14, is also provided on the outer wall of the gastric tube body 1 along its circumferential direction to fix the position of the gastric tube body 1 in the stomach and prevent the gastric tube body 1 from slipping out.
[0029] The connecting seat 2 is installed on the side of the gastric tube body 1 away from the drainage hole 11. The connecting seat 2 is provided with a suction tube 3, an air injection tube 5, and an injection tube 4 that are respectively connected to the suction chamber 13, the air injection chamber 14, and the liquid injection chamber 12. The air injection tube 5 and the liquid injection tube 4 are respectively provided with a first valve 7 and a second valve 6.
[0030] The suction hole, suction cavity 13 and suction tube 3 are used to drain the fluid in the stomach. The air injection cavity 14 is embedded in the suction cavity 13 and connected to the air injection tube 5 to provide gas medium for the first airbag 9 and the second airbag 8. The pressure of the first airbag 9 and the second airbag 8 is maintained by the first valve 7. The liquid injection cavity 12 is connected to the liquid injection tube 4 to realize the infusion of drugs or nutrient solution.
[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.
Claims
1. A multi-lumen gastric tube, characterized in that, The utility model relates to a stomach tube, which comprises a stomach tube body, a connecting seat and a first air bag. The stomach tube body is provided with an aspiration cavity, an air injection cavity and a liquid injection cavity. The first air bag is annularly arranged on the lateral wall of the stomach tube body.
2. A multi-lumen gastric tube according to claim 1, wherein: The second air bag is annularly arranged on the lateral wall of the stomach tube body.
3. The multi-lumen gastric tube of claim 1, wherein: The liquid injection cavity is annularly arranged around the aspiration cavity.
4. The multi-lumen gastric tube of claim 1, wherein: The air injection cavity is arranged in the aspiration cavity.
5. The multi-lumen gastric tube of claim 1, wherein: The scale line is arranged on the outer wall of the stomach tube body along the axial direction.
6. The multi-lumen gastric tube of claim 1, wherein: The plurality of through holes are annularly arranged on the outer wall of the stomach tube body.