Multi-cavity gastrointestinal tube

Abstract

The utility model relates to a multi-cavity gastrointestinal tube which comprises a three-way connector, a stomach tube and an intestinal tube. The three-way joint comprises an intestinal tube sub-joint and a stomach tube joint; a stomach tube interlayer is fixedly arranged on the inner circumferential face of the stomach tube between the stomach tube front end and the stomach tube rear end, the two ends of the stomach tube interlayer are in arc transition connection with the inner circumferential face of the stomach tube, the stomach tube interlayer divides the inner space of the stomach tube into a gastric juice suction cavity and an intestinal tube infusion cavity, and the gastric juice suction cavity close to the stomach tube front end is provided with a through hole communicated with the side edge inlet. A plurality of suction holes are further formed in the peripheral surface of the stomach tube; the front end of the intestinal tube is connected with the rear end of the stomach tube, and an intestinal tube perfusion liquid outlet communicated with the intestinal tube and the interior of the intestinal tube perfusion cavity is formed in the peripheral face of the rear end of the intestinal tube. Compared with a traditional gastrointestinal tube formed through bonding or one-time injection molding, the gastrointestinal tube has the advantages that the connectivity is good, and the outer diameter of the catheter does not need to be increased, so that the self-indwelling trafficability is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gastrointestinal tube technical field, concretely is a kind of multi-lumen gastrointestinal tube. BACKGROUND

[0002] In clinical medicine, the application of gastrointestinal tube is crucial for patients who need enteral nutrition support or gastrointestinal decompression.

[0003] Traditional gastrointestinal tube is generally formed by one-time injection molding process, and in order to ensure normal flow between chambers, the outer diameter of the catheter is generally increased, which leads to poor passability of catheterization, and the aperture of the nutrition chamber is reduced, resulting in reduced flow of nutrient solution, and the connection is generally connected by bonding, which poses a certain risk to the firmness of the gastrointestinal tube. Therefore, we improve the existing gastrointestinal tube to meet the use requirements. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a multi-lumen gastrointestinal tube with a sectional welding and fixing integrated structure and a smooth transition connection between the interlayers of the gastrointestinal tube.

[0005] The technical problem to be solved by the utility model is solved by the following technical solution: a multi-lumen gastrointestinal tube includes a tee joint, a stomach tube, and an intestinal tube, which are fixed as one body by welding.

[0006] The tee joint includes an intestinal tube sub connector and a stomach tube sub connector. One end of the intestinal tube sub connector is an intestinal tube sub connector inlet, and the other end is an intestinal tube sub connector outlet. A side inlet is formed on the outer circumferential surface of the intestinal tube sub connector outlet end. The stomach tube sub connector is fixedly connected to the side inlet.

[0007] One end of the stomach tube is a stomach tube front end, and the other end is a stomach tube rear end. A stomach tube interlayer is fixedly arranged on the inner circumferential surface of the stomach tube between the stomach tube front end and the stomach tube rear end. The two ends of the stomach tube interlayer are arc transitionally connected to the inner circumferential surface of the stomach tube. The stomach tube interlayer divides the internal space of the stomach tube into a gastric juice suction chamber and an intestinal tube perfusion chamber. The gastric juice suction chamber near the stomach tube front end has a through hole that is in communication with the side inlet. The outer circumferential surface of the stomach tube also has a plurality of suction holes.

[0008] One end of the intestinal tube is an intestinal tube front end, and the other end is an intestinal tube rear end. The intestinal tube front end is connected to the stomach tube rear end. An intestinal tube perfusion liquid outlet is formed on the outer circumferential surface of the intestinal tube rear end, which is in communication with the internal space of the intestinal tube and the intestinal tube perfusion chamber.

[0009] The technical problem to be solved by the utility model can also be solved by the following technical solution: the radial distance of the intestinal tube sub connector outlet is greater than the outer diameter of the stomach tube, and the outer diameter of the stomach tube is greater than the outer diameter of the intestinal tube.

[0010] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0011] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0012] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0013] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0014] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0015] The technical problems to be solved by the utility model can also be implemented by the following technical solutions, the multi-cavity gastrointestinal tube, the rear end of the intestinal tube is formed into a bullet head structure.

[0016] Compared with the prior art, the utility model has the beneficial technical effects that:

[0017] (1) the tee joint, the stomach tube and the intestinal tube are welded, compared with the traditional adhesion or one-time injection molding gastrointestinal tube, the connectivity is good, and the outer diameter of the catheter does not need to be increased, so that the self catheterization passability is affected.

[0018] (2) the stomach tube sandwich and the stomach tube inner wall circular arc transition joint, the maximum degree avoids the drainage liquid and appears the flow blockage problem because the existence of the sharp part of the stomach tube sandwich, guarantees the normal use of the gastrointestinal tube.

[0019] (3) the stomach tube and the intestinal tube outer diameter decrement design and the bullet head structure of the rear end of the intestinal tube, the smoothness and the comfort degree of insertion are improved, and the waist type hole design of the intestinal tube perfusion liquid outlet and the layout of the suction hole close to the rear end optimize the outflow effect of the perfusion liquid.

[0020] (4) the added stomach balance cavity can make the gastric juice more smooth during suction, reduce the suction difficulty, and form a three-chamber gastrointestinal tube.

[0021] (5) The added balloon cavity makes the gastrointestinal tube have a balloon function, and forms a four-chamber gastrointestinal tube. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the utility model;

[0023] Figure 2 It is a partial cross-sectional view structural schematic diagram of the stomach tube;

[0024] Figure 3 It is a cross-sectional view of the front end of the stomach tube;

[0025] Figure 4 It is a cross-sectional view of the rear end of the stomach tube;

[0026] Figure 5 It is a structural schematic diagram of a three-chamber gastrointestinal tube with a stomach balance cavity;

[0027] Figure 6 It is a structural schematic diagram of a four-chamber gastrointestinal tube with a balloon cavity.

[0028] REFERENCE NUMERALS

[0029] 1, intestinal tube sub connector; 2, stomach tube sub connector; 3, side inlet; 4, front end of stomach tube; 5, rear end of stomach tube; 6, stomach tube interlayer; 7, circular arc transition; 8, gastric juice suction cavity; 9, intestinal tube perfusion cavity; 10, suction hole; 11, front end of intestinal tube; 12, rear end of intestinal tube; 13, sealing cap; 14, intestinal tube perfusion liquid outlet; 15, stomach balance cavity; 16, stomach balance cavity connector; 17, balance cavity side hole; 18, balloon cavity; 19, balloon gas exchange connector; 20, balloon. DETAILED DESCRIPTION

[0030] The specific technical scheme of the utility model is further described below with reference to the drawings, so that those skilled in the art can further understand the utility model without limiting its rights.

[0031] Embodiment 1, refer to Figures 1-6 A multi-chamber gastrointestinal tube, comprising a tee connector, a stomach tube and an intestinal tube which are welded and fixed as a whole at the end;

[0032] The tee connector comprises an intestinal tube sub connector 1 and a stomach tube sub connector 2, one end of the intestinal tube sub connector 1 is an intestinal tube sub connector inlet, the other end is an intestinal tube sub connector outlet, a side inlet 3 is formed on the outer circumferential surface of the intestinal tube sub connector outlet end, the side inlet 3 is a circular hole, the stomach tube sub connector 2 is fixedly connected on the side inlet 3, the radial distance of the intestinal tube sub connector outlet is greater than the outer diameter of the stomach tube, the outer diameter of the stomach tube is greater than the outer diameter of the intestinal tube, and the size can be selected according to the use requirement;

[0033] One end of the stomach tube is the stomach tube front end 4, the other end is the stomach tube rear end 5, the stomach tube inner circumferential surface between the stomach tube front end 4 and the stomach tube rear end 5 is fixedly provided with a stomach tube interlayer 6, the length of the stomach tube interlayer 6 can be selected according to the use requirement, the two ends of the stomach tube interlayer 6 are connected with the stomach tube inner circumferential surface arc transition 7, the stomach tube internal space is divided into a gastric juice suction cavity 8 and an intestinal tube perfusion cavity 9 by the stomach tube interlayer 6, the gastric juice suction cavity 8 close to the stomach tube front end 4 has a through hole communicated with the side inlet 3, the stomach tube outer circumferential surface is also provided with a plurality of suction holes 10, the number of the suction holes 10 can be selected according to the use requirement, and the suction holes 10 are arranged close to the stomach tube rear end 5.

[0034] One end of the stomach tube is the stomach tube front end 4, the other end is the stomach tube rear end 5, the stomach tube inner circumferential surface between the stomach tube front end 4 and the stomach tube rear end 5 is fixedly provided with a stomach tube interlayer 6, the length of the stomach tube interlayer 6 can be selected according to the use requirement, the two ends of the stomach tube interlayer 6 are connected with the stomach tube inner circumferential surface arc transition 7, the stomach tube internal space is divided into a gastric juice suction cavity 8 and an intestinal tube perfusion cavity 9 by the stomach tube interlayer 6, the gastric juice suction cavity 8 close to the stomach tube front end 4 has a through hole communicated with the side inlet 3, the stomach tube outer circumferential surface is also provided with a plurality of suction holes 10, the number of the suction holes 10 can be selected according to the use requirement, and the suction holes 10 are arranged close to the stomach tube rear end 5.

[0035] The inlet end outer circumferential surface of the intestinal tube sub connector 1 and the stomach tube sub connector 2 is fixedly provided with a sealing cap 13.

[0036] It also includes a stomach balance cavity 15, a stomach balance cavity connector 16 is installed on the outer circumferential surface of the three-way connector, and a plurality of balance cavity side holes 17 are formed in the outer circumferential surface of the stomach tube rear end 5.

[0037] It should be noted that the purpose of the added stomach balance cavity 15 is to balance the stomach pressure when sucking gastric juice, and to form a three-chamber stomach and intestinal tube.

[0038] It also includes a balloon cavity 18, a balloon gas exchange connector 19 is installed on the outer circumferential surface of the three-way connector, a balloon gas hole is formed in the outer circumferential surface of the stomach tube rear end 5, and a balloon 20 is fixedly arranged at the balloon gas hole.

[0039] It should be noted that the added balloon makes the stomach and intestinal tube have the function of the balloon, the size of the balloon 20 can be controlled through the balloon gas exchange connector 19, and a four-chamber stomach and intestinal tube is formed.

[0040] The welding steps of the multi-cavity stomach and intestinal tube are as follows:

[0041] (1) First, the stomach tube rear end 5 is closed by a radio frequency welding machine, so that the end of the stomach tube interlayer 6 forms a closed arc transition 7 on the inner wall of the stomach tube, like Figure 4 ;

[0042] (2) After the end of the stomach tube interlayer 6 in the stomach tube forms a closed arc transition 7, the inner circumferential surface of the stomach tube rear end 5 is sleeved on the outer circumferential surface of the intestinal tube front end 11, and welding is performed again by the radio frequency welding machine.

[0043] (3) the other end of the stomach tube layer 6 is closed with a circular arc transition 7, and all welding operations are completed.

[0044] The welding temperature is 165-175℃, the constant temperature time is 26-30s, the welding setting time is 3-4s, and the air cooling time is 45-50s.

[0045] After the welding process is completed, a plurality of suction holes 10 are arranged on the outer peripheral surface of the rear end 5 of the stomach tube, a bullet-shaped sheath with a hydrophilic coating is sleeved on the rear end 12 of the intestine tube, and a through hole and a side inlet 3 corresponding to the through hole are arranged on the front end 4 of the stomach tube and the joint 1 of the intestine tube.

Claims

1. A multi-lumen gastroenteral tube, characterized by: The three-way joint, the stomach tube and the intestinal tube are fixed by welding at the end; The three-way joint comprises an intestinal tube joint and a stomach tube joint, one end of the intestinal tube joint is an intestinal tube joint inlet, the other end is an intestinal tube joint outlet, and a side inlet is formed on the outer circumferential surface of the intestinal tube joint outlet end; the stomach tube joint is fixedly connected to the side inlet; One end of the stomach tube is a stomach tube front end, the other end is a stomach tube rear end, a stomach tube interlayer is fixedly arranged on the inner circumferential surface of the stomach tube between the stomach tube front end and the stomach tube rear end, and the two ends of the stomach tube interlayer are connected to the inner circumferential surface of the stomach tube in a circular arc transition manner; the stomach tube interlayer divides the internal space of the stomach tube into a gastric juice suction cavity and an intestinal tube perfusion cavity; the gastric juice suction cavity close to the stomach tube front end has a through hole in communication with the side inlet; and a plurality of suction holes are formed on the outer circumferential surface of the stomach tube. One end of the intestinal tube is an intestinal tube front end, the other end is an intestinal tube rear end, the intestinal tube front end is connected to the stomach tube rear end, and an intestinal tube perfusion liquid outlet in communication with the internal space of the intestinal tube and the intestinal tube perfusion cavity is formed on the outer circumferential surface of the intestinal tube rear end.

2. The multi-lumen gastroenteral tube of claim 1, wherein: The radial distance of the intestinal tube joint outlet is greater than the outer diameter of the stomach tube, and the outer diameter of the stomach tube is greater than the outer diameter of the intestinal tube.

3. The multi-lumen gastroenteral tube of claim 1, wherein: The intestinal tube rear end of the intestinal tube is formed in a bullet head structure.

4. The multi-lumen gastroenteral tube of claim 1, wherein: The intestinal tube perfusion liquid outlet is a waist-shaped hole.

5. The multi-lumen gastroenteral tube of claim 1, wherein: The suction holes are arranged close to the stomach tube rear end.

6. The multi-lumen gastroenteral tube of claim 1, wherein: Sealing caps are fixedly arranged on the outer circumferential surfaces of the inlet ends of the intestinal tube joint and the stomach tube joint.

7. The multi-lumen gastroenteral tube according to any one of claims 1-6, wherein: A stomach balance cavity is further arranged, a stomach balance cavity joint is arranged on the outer circumferential surface of the three-way joint, and a plurality of balance cavity side holes are formed on the outer circumferential surface of the stomach tube rear end.

8. The multi-lumen gastroenteral tube of claim 7, wherein: A balloon cavity is further arranged, a balloon gas exchange joint is arranged on the outer circumferential surface of the three-way joint, a balloon gas hole is formed on the outer circumferential surface of the stomach tube rear end, and a balloon is fixedly arranged at the balloon gas hole.

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