Multi-cavity nutrient canal

Abstract

The utility model provides a multi-cavity nutrient canal which can solve the problem that a nutrient canal in the prior art is single in function. The multi-cavity nutrient canal comprises a multi-cavity canal body which is provided with a charging cavity, a stomach canal cavity and an intestinal canal cavity which are mutually independent; the intestinal tube cavity axially extends to the far end face of the multi-cavity tube body from the near end face of the multi-cavity tube body, and the intestinal tube cavity is provided with an intestinal tube inlet located in the near end face and an intestinal tube outlet located in the far end face; the flow filling cavity axially extends from the near end face of the multi-cavity tube body and is provided with a flow filling inlet located in the near end face and a cardia outlet located in the portion, corresponding to the gastric cardia, of the multi-cavity tube body. The intestinal tube cavity is provided with a stomach tube inlet located in the near end face and a stomach tube outlet located between the cardia outlet and the intestinal tube outlet. And the bag body assembly comprises a cardia bag body which is fixedly arranged on the multi-cavity tube body and is communicated with the cardia outlet, and the bag body assembly is used for expanding to form a balloon after being filled with fluid through the fluid filling cavity.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a multi-lumen nutrition tube. Background Art

[0002] In recent years, enteral nutrition and gastric nutrition have received increasing attention. The purpose is to provide basic nutritional supplementation or drug treatment for patients with normal or partial gastrointestinal functions who are unable to eat normally through the mouth. For example, after surgery, patients with digestive tract obstruction, pancreatitis, etc. have slow recovery of gastrointestinal functions, blocked gastrointestinal functions, and are unable to eat independently. Therefore, it is necessary to implant a gastric nutrition tube or an intestinal nutrition tube to meet the needs of gastric nutrition or enteral nutrition support respectively.

[0003] However, the existing gastric nutrition tubes or intestinal nutrition tubes are relatively single and cannot simultaneously meet the gastric nutrition and enteral nutrition needs of users. If a user needs to supply nutrition or decompress the stomach or intestine respectively, a gastric nutrition tube and an intestinal nutrition tube need to be inserted separately, and the catheter needs to be continuously replaced. To a certain extent, this will cause discomfort and fear in patients and greatly increase the pain of patients. Utility Model Content

[0004] The purpose of the present utility model is to provide a multi-lumen nutrition tube, which can solve the problem of single function of the nutrition tube in the prior art, realize decompression or nutrition supply to the stomach and jejunum simultaneously, reduce the number of catheter insertions, and reduce the pain of patients.

[0005] Based on this, an embodiment of the present utility model discloses a multi-lumen nutrition tube, including:

[0006] A multi-lumen tube body having independent charging cavities, a gastric tube cavity, and an intestinal tube cavity; the intestinal tube cavity axially extends from the proximal end face of the multi-lumen tube body to the distal end face of the multi-lumen tube body, and the intestinal tube cavity has an intestinal tube inlet at the proximal end face and an intestinal tube outlet at the distal end face; the charging cavity axially extends from the proximal end face of the multi-lumen tube body, and the charging cavity has a charging inlet at the proximal end face and a cardiac outlet at a position on the multi-lumen tube body corresponding to the cardiac orifice of the stomach; the intestinal tube cavity has a gastric tube inlet at the proximal end face and a gastric tube outlet between the cardiac outlet and the intestinal tube outlet; and

[0007] A balloon assembly including a cardiac balloon fixedly provided on the multi-lumen tube body and communicating with the cardiac outlet, which is used to expand to form a balloon after a fluid is filled through the charging cavity.

[0008] With the above technical solution, the intestinal lumen penetrates through the multi-lumen tube body to form a guiding channel for a guide wire or an endoscope to pass through, enabling the multi-lumen nutrition tube to be sequentially guided by the guide wire or the endoscope from the nose, esophagus, cardia, and stomach to the intestine, and then the guide wire or the endoscope is withdrawn to achieve the placement of the tube in place. At the same time, a fluid such as gas or water is filled into the cardia bladder through the fluid filling cavity, causing the cardia bladder to bulge to form a balloon at the cardia of the stomach, preventing the patient from pulling out the nutrition tube when feeling uncomfortable, avoiding re-placement of the tube, and reducing the pain of the patient. In particular, after the multi-lumen nutrition tube of the present application is placed in place, it can not only supply nutrition or decompress the stomach through the gastric tube lumen, but also supply nutrition or decompress the intestine through the intestinal tube lumen, so as to reduce the number of tube placements and reduce the pain of the patient.

[0009] According to an embodiment of the present application, the cardia bladder is arranged around the peripheral wall of the multi-lumen tube body.

[0010] With the above technical solution, after the cardia bladder is inflated by filling a fluid through the fluid filling cavity, a balloon protruding from the peripheral wall of the multi-lumen tube body is formed at the cardia of the stomach, which is convenient for ensuring that the multi-lumen tube body is in the central position of the cardia of the stomach.

[0011] According to an embodiment of the present application, the multi-lumen nutrition tube further includes a fluid filling plug matching the fluid filling inlet, and the fluid filling plug seals the fluid filling inlet.

[0012] With the above technical solution, after a fluid is filled into the cardia bladder through the fluid filling cavity to form a balloon, it can prevent the fluid in the cardia bladder from flowing out through the fluid filling cavity and losing the anti-pulling-out function.

[0013] According to an embodiment of the present application, the fluid filling plug has a plug cap portion matching the proximal end of the multi-lumen tube body, a plug head portion protruding from the plug cap portion, and a flexible connecting portion; the plug cap portion covers the proximal end of the multi-lumen tube body, and the plug head portion is inserted into the fluid filling inlet; one end of the flexible connecting portion is fixedly connected to the multi-lumen tube body, and the other end of the flexible connecting portion is fixedly connected to the plug cap portion.

[0014] With the above technical solution, it can not only better seal the fluid filling inlet of the fluid filling cavity, but also prevent the fluid filling plug from being lost or contaminated due to random placement.

[0015] According to an embodiment of the present application, the multi-lumen nutrition tube further includes a lateral gastric tube body fixed to the peripheral wall of the multi-lumen tube body and connected to the gastric tube lumen, and a lateral intestinal tube body fixed to the peripheral wall of the multi-lumen tube body and communicating with the intestinal tube lumen.

[0016] With the above technical solution, even if the gastric tube inlet and the intestinal tube inlet are covered by the fluid filling plug, the multi-lumen nutrition tube can still deliver nutrient solution or exhaust / extract fluid to the gastric tube lumen and the intestinal tube lumen respectively through the lateral gastric tube body and the lateral intestinal tube body, so as to achieve nutrient supply or decompression in the stomach and intestine.

[0017] According to an embodiment of the present application, the multi-lumen feeding tube further includes a gastric tube plug matching the lateral gastric tube body and an intestinal tube plug matching the lateral intestinal tube body; the gastric tube plug seals the tube orifice of the lateral gastric tube body, and the intestinal tube plug seals the tube orifice of the lateral intestinal tube body.

[0018] By adopting the above technical solution, it is possible to prevent external pollutants from entering through the tube orifices of the lateral gastric tube body and / or the lateral intestinal tube body and contaminating the gastric lumen and the intestinal lumen, thereby causing gastric or intestinal infections.

[0019] According to an embodiment of the present application, the cross-sectional area of the gastric lumen is larger than the cross-sectional area of the intestinal lumen; the cross-sectional area of the gastric lumen is larger than the cross-sectional area of the filling cavity; a plurality of gastric tube outlets are located on the peripheral wall of the multi-lumen tube body, and the plurality of gastric tube outlets are arranged along the axial direction of the multi-lumen tube body.

[0020] By adopting the above technical solution, it is possible to meet the requirement that the amount of gastric nutrition supply is greater than the amount of intestinal nutrition supply.

[0021] According to an embodiment of the present application, the intestinal lumen further has a plurality of lateral outlets provided adjacent to the distal end face, and the plurality of lateral outlets are arranged along the axial direction of the multi-lumen tube body on the peripheral wall of the multi-lumen tube body.

[0022] By adopting the above technical solution, it is possible to increase the number of outlets of the intestinal lumen and facilitate the supply or decompression of enteral nutrition.

[0023] According to an embodiment of the present application, the multi-lumen feeding tube further includes a spring tube, and the spring tube is installed inside the filling cavity.

[0024] By adopting the above technical solution, it is possible to improve the anti-bending performance of the multi-lumen tube body and prevent it from being bent during tube placement or nutrition supply.

[0025] According to an embodiment of the present application, the pitch of the spring tube near the proximal end face is smaller than the pitch of the spring tube near the distal end face.

[0026] By adopting the above technical solution, while improving the anti-bending performance of the multi-lumen tube body, it is also possible to ensure that the part of the multi-lumen tube body adjacent to the distal end face has sufficient bending performance, which is convenient for controlling the bending with an endoscope.

[0027] According to an embodiment of the present application, the filling cavity further has a pyloric outlet located at a position on the multi-lumen tube body corresponding to the pylorus of the stomach; the capsule assembly further includes a pyloric capsule fixed to the multi-lumen tube body and communicating with the pyloric outlet, which is used to expand to form a balloon after filling the fluid through the filling cavity.

[0028] With the above technical solution, the pyloric bladder located in the stomach can prevent the multi-lumen tube from being overly inserted into the intestine after inflation, achieving a good positioning effect and ensuring that the gastric tube outlet between the cardiac bladder and the pyloric bladder is stably located in the stomach, guaranteeing the smooth progress of gastric nutrition supply or decompression. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 A three-dimensional schematic diagram of a multi-lumen nutrition tube provided in an embodiment of the present application;

[0031] Figure 2 A top view schematic diagram of the multi-lumen nutrition tube according to the above embodiment of the present application;

[0032] Figure 3 Shows Figure 2 A sectional view taken along line A-A of the multi-lumen nutrition tube shown;

[0033] Figure 4 Shows Figure 2 A sectional view taken along line B-B of the multi-lumen nutrition tube shown;

[0034] Figure 5 Shows Figure 2 A sectional view taken along line C-C of the multi-lumen nutrition tube shown;

[0035] Figure 6 A sectional view of the multi-lumen nutrition tube according to the first modified embodiment of the present application;

[0036] Figure 7 A three-dimensional schematic diagram of the multi-lumen nutrition tube according to the second modified embodiment of the present application;

[0037] Figure 8 Shows a sectional view of the multi-lumen nutrition tube according to the above second modified embodiment of the present application.

[0038] Reference numerals: 1, multi-lumen nutrition tube; 10, multi-lumen tube body; 101, proximal end face; 102, distal end face; 11, filling and flowing cavity; 111, filling and flowing inlet; 112, cardia outlet; 113, pylorus outlet; 12, gastric tube cavity; 121, gastric tube inlet; 122, gastric tube outlet; 13, intestinal tube cavity; 131, intestinal tube inlet; 132, intestinal tube outlet; 133, lateral outlet; 20, bladder assembly; 21, cardia bladder; 22, pylorus bladder; 30, filling and flowing plug; 31, plug cap part; 32, plug head part; 33, flexible connection part; 40, lateral gastric tube body; 50, lateral intestinal tube body; 60, gastric tube plug; 70, intestinal tube plug; 80, spring tube. Detailed implementation manners

[0039] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the embodiments of the present application, it should be noted that the terms "proximal" and "distal" are relative positional relationships. When an operator operates an instrument to process a target object, along this instrument, the side closer to the operator is "proximal", and the side closer to the target object is "distal".

[0041] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0045] Considering that existing gastric feeding tubes or intestinal feeding tubes are relatively single and cannot simultaneously meet the gastric nutrition and intestinal nutrition needs of users. To solve this problem, this application provides a multi-lumen feeding tube, which can achieve decompression or nutritional supply to the stomach and jejunum simultaneously, reduce the number of catheter insertions, and reduce the pain of patients.

[0046] Specifically, please refer to Figures 1 to 5 , an embodiment of this application provides a multi-lumen feeding tube 1, which may include a multi-lumen tube body 10 and a bladder assembly 20. The multi-lumen tube body 10 has independent charging and flowing cavities 11, a gastric tube cavity 12, and an intestinal tube cavity 13. The intestinal tube cavity 13 axially extends from the proximal end face 101 of the multi-lumen tube body 10 to the distal end face 102 of the multi-lumen tube body 10, and the intestinal tube cavity 13 has an intestinal tube inlet 131 located at the proximal end face 101 and an intestinal tube outlet 132 located at the distal end face 102. In this way, the intestinal tube cavity 13 penetrates through the multi-lumen tube body 10 to form a guiding channel for a guide wire or an endoscope (not shown in the figure) to pass through, so that the multi-lumen feeding tube 1 is first guided by the guide wire or the endoscope to be sequentially pulled from the nose, esophagus, cardia, stomach to the intestine, and then the guide wire or the endoscope is withdrawn to achieve the catheter placement in place. It can be understood that the proximal end and the distal end mentioned in this application respectively refer to the end of the multi-lumen feeding tube 1 located outside the body and the end located inside the body after being inserted into the human body.

[0047] More specifically, as Figure 2 and Figure 4 shown, the charging and flowing cavity 11 axially extends from the proximal end face 101 of the multi-lumen tube body 10, and the charging and flowing cavity 11 has a charging and flowing inlet 111 located at the proximal end face 101 and a cardia outlet 112 located at the position on the multi-lumen tube body 10 corresponding to the cardia of the stomach. As Figure 2 andFigure 5 As shown, the gastric tube lumen 12 axially extends from the proximal end face 101 of the multi-lumen tube body 10, and the gastric tube lumen 12 has a gastric tube inlet 121 located at the proximal end face 101 and a gastric tube outlet 122 located between the cardiac outlet 112 and the intestinal tube outlet 132. As Figure 1 and Figure 4 shown, the bladder assembly 20 includes a cardiac bladder 21 fixedly arranged on the multi-lumen tube body 10 and communicating with the cardiac outlet 112, which is used to expand after filling with fluid through the filling cavity 11 to form a balloon at the cardiac orifice of the stomach.

[0048] In this way, when the multi-lumen nutrition tube 1 is in place, the cardiac outlet 112 of the filling cavity 11 is located at the cardiac orifice of the stomach, the gastric tube outlet 122 of the gastric tube lumen 12 is located in the human stomach, and the intestinal tube outlet 132 of the intestinal tube lumen 13 is located in the human intestine; at this time, a fluid such as gas or water is filled into the cardiac bladder 21 through the filling cavity 11, so that the cardiac bladder 21 located in the stomach bulges to form a balloon at the cardiac orifice of the stomach, preventing the patient from pulling out the nutrition tube when feeling uncomfortable, avoiding re-catheterization, and reducing the pain of the patient. In particular, after the multi-lumen nutrition tube 1 of the present application is in place, it can not only supply nutrition or decompress the stomach through the gastric tube lumen 12, but also supply nutrition or decompress the intestine through the intestinal tube lumen 13.

[0049] Optionally, as Figures 2 to 5 shown, the cardiac bladder 21 is arranged around the peripheral wall of the multi-lumen tube body 10, so as to form a balloon protruding from the peripheral wall of the multi-lumen tube body 10 at the cardiac orifice of the stomach after expanding by filling with fluid through the filling cavity 11, which is convenient for ensuring that the multi-lumen tube body 10 is in the center position of the cardiac orifice of the stomach.

[0050] It should be noted that after filling the cardiac bladder 21 with fluid through the filling cavity 11 to form a balloon, in order to prevent the fluid in the cardiac bladder 21 from flowing out through the filling cavity 11, as Figures 1 to 5 shown, the multi-lumen nutrition tube 1 of the present application may further include a filling plug 30 matching the filling inlet 111, and the filling plug 30 seals the filling inlet 111 to seal the filling cavity 11.

[0051] Optionally, as Figure 2 shown, the filling plug 30 has a plug cap portion 31 matching the proximal end of the multi-lumen tube body 10 and a plug head portion 32 protruding from the plug cap portion 31; the plug cap portion 31 covers the proximal end of the multi-lumen tube body 10, and the plug head portion 32 is inserted into the filling inlet 111 so as to better seal the filling inlet 111 of the filling cavity 11.

[0052] Optionally, as Figure 2As shown, the filling flow plug 30 further has a flexible connecting portion 33. One end of the flexible connecting portion 33 is fixedly connected to the multi-cavity tube body 10, and the other end of the flexible connecting portion 33 is fixedly connected to the plug cap portion 31, preventing the plug cap portion 31 from completely detaching from the multi-cavity tube body 10 after being pulled out from the proximal end of the multi-cavity tube body 10, avoiding loss or being contaminated due to random placement.

[0053] It should be noted that since the gastric tube inlet 121 and the intestinal tube inlet 131 are both located on the proximal end face 101 of the multi-cavity tube body 10 like the filling flow inlet 111, when the filling flow plug 30 covering the proximal end of the multi-cavity tube body 10 seals the filling flow inlet 111, it will cover the gastric tube inlet 121 and the intestinal tube inlet 131, affecting the supply of gastric / intestinal nutrition or decompression.

[0054] For the convenience of gastric / intestinal nutrition supply or decompression, as Figures 1 to 5 shown, the multi-cavity nutrition tube 1 of the present application may further include a lateral gastric tube body 40 fixedly provided on the peripheral wall of the multi-cavity tube body 10 and communicating with the gastric tube cavity 12, and a lateral intestinal tube body 50 fixedly provided on the peripheral wall of the multi-cavity tube body 10 and communicating with the intestinal tube cavity 13, so that while the gastric tube inlet 121 and the intestinal tube inlet 131 are covered by the filling flow plug 30, nutrient solution can be respectively delivered to the gastric tube cavity 12 and the intestinal tube cavity 13 or air can be exhausted / liquid can be pumped through the lateral gastric tube body 40 and the lateral intestinal tube body 50, thereby realizing the supply of gastric and intestinal nutrition or decompression. It can be understood that in other examples of the present application, the multi-cavity nutrition tube 1 may also be configured with a lateral filling flow tube body. At this time, only the filling flow inlet 111 located on the proximal end face 101 needs to be sealed, and the present application will not elaborate on this; in addition, the decompression mentioned in the present application not only includes exhausting air, but also includes extracting food / liquid in the stomach or intestine to reduce the pressure in the gastrointestinal cavity.

[0055] Optionally, as Figures 1 to 5 shown, the multi-cavity nutrition tube 1 may further include a gastric tube plug 60 matching the lateral gastric tube body 40 and an intestinal tube plug 70 matching the lateral intestinal tube body 50; the gastric tube plug 60 seals the tube orifice of the lateral gastric tube body 40, and the intestinal tube plug 70 seals the tube orifice of the lateral intestinal tube body 50 to prevent external pollutants from contaminating the gastric tube cavity 12 and the intestinal tube cavity 13. It can be understood that the gastric tube plug 60 and the intestinal tube plug 70 mentioned in the present application may have a similar structure to the filling flow plug 30, and the present application will not elaborate on this.

[0056] According to the above embodiments of the present application, as Figure 2As shown, the cross-sectional area of the gastric lumen 12 is generally larger than that of the intestinal lumen 13 to meet the requirement that the amount of gastric nutrition supply is greater than that of intestinal nutrition supply. In addition, the cross-sectional area of the filling lumen 11 can be equivalent to that of the intestinal lumen 13 or smaller than that of the intestinal lumen 13. For example, the gastric lumen 12, the intestinal lumen 13, and the filling lumen 11 all have a circular cross-section, and the radius of the gastric lumen 12 is greater than the radius of the intestinal lumen 13 and / or the filling lumen 11.

[0057] It should be noted that since the gastric outlet 122 of the gastric lumen 12 is located on the peripheral wall of the multi-lumen tube body 10, the number of gastric outlets 122 in the present application can be multiple, and the multiple gastric outlets 122 are arranged along the axial direction of the multi-lumen tube body 10 to supply gastric nutrition or decompress more quickly.

[0058] However, since the intestinal outlet 132 of the intestinal lumen 13 is located on the distal end face 102 of the multi-lumen tube body 10, and the distal end face 102 of the multi-lumen tube body 10 usually has a small area for catheter placement, the flow area of the intestinal outlet 132 is usually small, making it difficult to meet the requirements of intestinal nutrition supply or decompression. To solve this problem, as Figure 1 and Figure 3 shown, the intestinal lumen 13 of the present application can further have a plurality of lateral outlets 133 provided adjacent to the distal end face 102, and the plurality of lateral outlets 133 are arranged along the axial direction of the multi-lumen tube body 10 on the peripheral wall of the multi-lumen tube body 10 to increase the number of outlets of the intestinal lumen 13 and facilitate intestinal nutrition supply or decompression.

[0059] It is worth mentioning that since the filling lumen 11, the gastric lumen 12, and the intestinal lumen 13 are simultaneously provided in the multi-lumen tube body 10, and the multi-lumen tube body 10 usually has a small cross-section for catheter placement, the inter-lumen wall of the multi-lumen tube body 10 is thin, resulting in poor anti-bending performance and being prone to bending, making it difficult to complete catheter placement or unable to supply nutrition. To solve this problem, in the first variant embodiment of the present application, as Figure 6As shown, the multi - cavity feeding tube 1 may further include a spring tube 80 installed within the fluid - filling cavity 11 to support the multi - cavity tube body 10. This can not only improve the anti - bending performance of the multi - cavity tube body 10, preventing it from bending during tube placement or nutritional supply, but also increase the flexibility of the multi - cavity tube body 10, enabling it to more flexibly adapt to curved human body cavities, which helps reduce damage to surrounding tissues. It can be understood that the spring tube 80 of the present application is preferably arranged within the fluid - filling cavity 11, rather than within the gastric tube cavity 12 or the intestinal tube cavity 13. This is because the fluid - filling cavity 11 is usually used to inflate the bladder assembly 20, so even if the spring tube 80 is arranged within the fluid - filling cavity 11, it will not have a great impact on the inflation effect; while if it is arranged within the gastric tube cavity 12 or the intestinal tube cavity 13, it is likely to have a great impact on the supply of nutrient solution and is easily corroded by the nutrient solution, resulting in contamination.

[0060] In addition, the material of the multi - cavity tube body 10 mentioned in the present application can be, but is not limited to, one of polyurethane, TPU (thermoplastic polyurethane elastomer), silicone, and PEBAX (nylon elastomer).

[0061] Optionally, the pitch of the spring tube 80 near the proximal end face 101 is smaller than the pitch of the spring tube 80 near the distal end face 102. This is to ensure that while improving the anti - bending performance of the multi - cavity tube body 10, the part of the multi - cavity tube body 10 adjacent to the distal end face 102 has sufficient bending performance, facilitating the use of an endoscope for bending control. It can be understood that the pitch of the spring tube 80 mentioned in the present application can gradually increase from the proximal end face 101 towards the distal end face 102, or increase step - by - step from the proximal end face 101 towards the distal end face 102, or a combination of gradual increase and step - by - step increase. The present application will not elaborate on this.

[0062] It should be noted that in the above - mentioned embodiment of the present application, the bladder assembly 20 only includes the cardiac bladder 21, which expands after the fluid is filled through the fluid - filling cavity 11 to form a balloon at the cardiac orifice of the stomach, preventing the multi - cavity feeding tube 1 from being withdrawn. In the second variant embodiment of the present application, as Figure 7 and Figure 8 shown, the fluid - filling cavity 11 in the multi - cavity feeding tube 1 may further have a pyloric outlet 113 located at the part of the multi - cavity tube body 10 corresponding to the pylorus of the stomach; correspondingly, the bladder assembly 20 further includes a pyloric bladder 22 fixedly arranged on the multi - cavity tube body 10 and communicating with the pyloric outlet 113, which expands after the fluid is filled through the fluid - filling cavity 11 to form a balloon at the pylorus of the stomach.

[0063] In other words, as Figure 7As shown, the pyloric sac 22 connected to the pyloric outlet 113 is located between the gastric tube outlet 122 of the gastric tube lumen 12 and the lateral outlet 133 of the intestinal tube lumen 13, so as to prevent the multi-lumen tube body 10 from being excessively inserted into the intestine after the pyloric sac 22 located in the stomach expands, achieving a better positioning effect and ensuring that the gastric tube outlet 122 between the cardiac sac 21 and the pyloric sac 22 is stably located in the stomach, guaranteeing the smooth progress of gastric nutrition supply or decompression.

[0064] Without changing the basic principle of the present utility model, the technical features of the above embodiments can be combined. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0065] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A multi-lumen feeding tube, characterized in that: include: The multi-lumen tube body has mutually independent fluid filling lumens, stomach lumens and intestinal lumens; The intestinal tube cavity axially extends from the proximal surface of the multi-lumen tube body to the distal surface of the multi-lumen tube body, and the intestinal tube cavity has an intestinal tube inlet located at the proximal surface and an intestinal tube outlet located at the distal surface; the filling cavity axially extends from the proximal surface of the multi-lumen tube body, and the filling cavity has a filling inlet located at the proximal surface and a cardiac outlet located at a portion of the multi-lumen tube body corresponding to the gastric cardia; the intestinal tube cavity has a stomach tube inlet located at the proximal surface and a stomach tube outlet located between the cardiac outlet and the intestinal tube outlet; and The balloon assembly comprises a cardiac balloon body fixedly arranged on the multi-cavity tube body and connected with the cardiac outlet, and is used for expanding to form a balloon after the fluid is filled into the filling cavity.

2. The multi-lumen feeding tube according to claim 1, characterized in that: The cardiac sac is arranged around the peripheral wall of the multi-lumen tube.

3. The multi-lumen feeding tube according to claim 1, characterized in that: It also includes a filling plug that matches the filling inlet, and the filling plug is sealed at the filling inlet.

4. The multi-lumen feeding tube according to claim 3, characterized in that: The filling plug comprises a plugging cap portion matching the proximal end of the multi-lumen tube body, a plugging portion protruding from the plugging cap portion, and a flexible connecting portion; the plugging cap portion covers the proximal end of the multi-lumen tube body, and the plugging portion is inserted into the filling inlet; one end of the flexible connecting portion is fixedly connected to the multi-lumen tube body, and the other end of the flexible connecting portion is fixedly connected to the plugging cap portion.

5. The multi-lumen feeding tube according to claim 1, characterized in that: It also includes a lateral stomach tube body fixedly arranged on the peripheral wall of the multi-lumen tube body and connected to the stomach tube cavity, and a lateral intestinal tube body fixedly arranged on the peripheral wall of the multi-lumen tube body and connected to the intestinal tube cavity.

6. The multi-lumen feeding tube according to claim 5, characterized in that: It also includes a stomach tube plug that matches the lateral stomach tube body and an intestinal tube plug that matches the lateral intestinal tube body; the stomach tube plug is sealed at the tube opening of the lateral stomach tube body, and the intestinal tube plug is sealed at the tube opening of the lateral intestinal tube body.

7. The multi-lumen feeding tube according to claim 1, characterized in that: The cross-sectional area of ​​the gastric tube cavity is larger than the cross-sectional area of ​​the intestinal tube cavity; the cross-sectional area of ​​the gastric tube cavity is larger than the cross-sectional area of ​​the filling cavity; the plurality of gastric tube outlets are located on the peripheral wall of the multi-cavity tube body, and the plurality of gastric tube outlets are arranged along the axial direction of the multi-cavity tube body.

8. The multi-lumen feeding tube according to claim 1, characterized in that: The intestinal tube cavity further has a plurality of lateral outlets disposed adjacent to the distal end surface, and the plurality of lateral outlets are arranged on the peripheral wall of the multi-lumen tube body along the axial direction of the multi-lumen tube body.

9. The multi-lumen feeding tube according to any one of claims 1 to 8, characterized in that: It also includes a spring tube, which is installed in the filling cavity; the pitch of the spring tube close to the proximal end surface is smaller than the pitch of the spring tube close to the distal end surface.

10. The multi-lumen feeding tube according to any one of claims 1 to 8, characterized in that: The filling cavity further has a pyloric outlet located on the multi-cavity tube body for corresponding to the pylorus of the stomach; the balloon assembly further includes a pyloric balloon body fixed to the multi-cavity tube body and connected to the pyloric outlet, which is used to expand to form a balloon after the fluid is filled into the filling cavity.

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