Anti-reflux stomach tube connector

Abstract

The utility model belongs to the technical field of stomach tubes, and relates to an anti-reflux stomach tube connector which comprises a first through tube, a second through tube, a first stomach tube connector, a second stomach tube connector, a tube connector and a rubber duckbilled valve, and the first stomach tube connector, the first through tube, the tube connector, the second through tube and the second stomach tube connector are sequentially connected in the axial direction. The rubber duckbill valve is installed in the second through pipe, and an outlet faces the pipe connector. When a nutrient solution is infused, the outlet of the duckbilled part of the rubber duckbilled valve is closed under the action of elasticity of the rubber duckbilled valve to prevent the nutrient solution from flowing reversely, and when the liquid pressure of the second stomach tube connector is gradually increased, the outlet of the duckbilled part is gradually increased to allow the nutrient solution to be discharged in one direction; when the injector stops injecting the nutrient solution, the duckbilled part of the rubber duckbilled valve can be tightly closed through the reverse nutrient solution or stomach air pressure, the nutrient solution is prevented from flowing back, and the backflow phenomenon in the infusion tube can be avoided in the process after infusion of liquid food or the nutrient solution and the like is finished.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stomach tube technical field, concretely relates to a backflow prevention stomach tube joint. BACKGROUND

[0002] When feeding a patient with a detained stomach tube, no matter a guide wire stomach tube or a silica gel stomach tube, liquid food is easy to flow back from the injection port at the moment of pulling out the syringe. At present, when the syringe is pulled out, the way of folding the infusion tube is generally adopted to avoid the backflow leakage of liquid food, but this way has poor backflow prevention effect and can easily cause damage of the infusion tube. SUMMARY

[0003] In view of the problems in the background art, the utility model provides a backflow prevention stomach tube joint.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A backflow prevention stomach tube joint, comprising first stomach tube joints, first tubes, tube joints, second tubes and second stomach tube joints connected in sequence;

[0006] The first tubes, the second tubes, the first stomach tube joints, the second stomach tube joints and the tube joints are coaxially arranged;

[0007] The second tube is internally provided with a rubber duckbill valve; the outlet of the rubber duckbill valve faces the tube joint and is used for controlling the one-way flow of medium along the rubber duckbill valve to the tube joint.

[0008] Further, the first tube is internally provided with a stepped hollow structure, one end of which is threadedly connected with the first stomach tube joint, and the other end is threadedly connected with the connecting tube joint.

[0009] Further, the second tube is internally provided with a stepped hollow structure, one end of which is threadedly connected with the tube joint, and the other end is threadedly connected with the second stomach tube joint.

[0010] Further, the stepped hollow structure of the second tube is internally provided with a plurality of bolt holes in the circumferential direction on the step surface, and the bolt holes are used for mounting the rubber duckbill valve.

[0011] Further, the first stomach tube joint is internally provided with a stepped hollow structure, and the end connected with the first tube is provided with external threads.

[0012] Further, the second stomach tube joint is internally provided with a stepped hollow structure, and the end connected with the second tube is provided with external threads.

[0013] Further, the tube joint is internally provided with a stepped hollow structure, and both ends are provided with external threads.

[0014] Furthermore, the rubber duckbill valve includes a flange and a duckbill portion;

[0015] The flange is fixedly connected to the duckbill portion and has a plurality of bolt holes formed along the circumferential direction for connecting to the stepped surface inside the second through pipe via bolts;

[0016] The pressure mouth portion is in a duckbill shape and faces the pipe joint.

[0017] Furthermore, the first gastric tube connector is connected to the gastric tube.

[0018] Furthermore, the second gastric tube connector is connected to a syringe.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides an anti-reflux gastric tube connector, when nutrient solution is infused, the outlet of the duckbill portion of the rubber duckbill valve closes under the action of its own elasticity to prevent the reverse flow of the nutrient solution, when the liquid pressure of the second gastric tube connector gradually increases, the outlet of the duckbill portion gradually increases, allowing the nutrient solution to be discharged in one direction; when the syringe stops injecting the nutrient solution, the reverse nutrient solution or gastric air pressure will cause the duckbill portion of the rubber duckbill valve to close tightly to prevent the nutrient solution from flowing back. The above process can avoid the backflow phenomenon in the infusion tube after the infusion of liquid food or nutrient solution is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an explosion diagram of an anti-reflux gastric tube connector of the utility model;

[0021] Figure 2 Schematic diagram of the first through pipe structure;

[0022] Figure 3 Schematic diagram of the second through pipe structure;

[0023] Figure 4 This is a schematic diagram of the rubber duckbill valve structure;

[0024] Figure 5 Schematic diagram of the pipe joint structure;

[0025] Figure 6 Schematic diagram of the structure of the first gastric tube connector;

[0026] Figure 7 The utility model is a schematic diagram of the assembly of an anti-reflux gastric tube connector.

[0027] The numbers in the figure are: 1, first through pipe; 2, second through pipe; 201, step surface; 3, first gastric tube connector; 4, second gastric tube connector; 5, pipe connector; 6, rubber duckbill valve; 601, flange; 602, duckbill part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely explained in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] As Figure 1 shown, it is an explosion view of an anti-reflux stomach tube joint, comprising a first through pipe 1, a second through pipe 2, a first stomach tube joint 3, a second stomach tube joint 4, a pipe joint 5 and a rubber duckbill valve 6. The first through pipe 1, the second through pipe 2, the first stomach tube joint 3, the second stomach tube joint 4 and the pipe joint 5 are coaxially arranged; the first stomach tube joint 3, the first through pipe 1, the pipe joint 5, the second through pipe 2 and the second stomach tube joint 4 are sequentially connected in the axial direction. The rubber duckbill valve 6 is installed inside the second through pipe 2, and the outlet of the rubber duckbill valve 6 faces the pipe joint 5, which is used for controlling the one-way flow of the medium (such as nutrient solution) along the rubber duckbill valve 6 to the pipe joint 5. The assembled stomach tube joint is as shown in Figure 7 .

[0030] As a preferred embodiment, the inside of the first through pipe 1 is a stepped hollow structure, the left end is threadedly connected for connecting the first stomach tube joint 3, and the right end is threadedly connected for connecting the pipe joint 5.

[0031] It should be noted that, as Figure 2 shown, the first through pipe 1 is a hollow structure, and the two ends are provided with internal thread holes, wherein the hole diameter of the internal thread hole matched with the first stomach tube joint 3 is smaller, and the hole diameter of the internal thread hole matched with the pipe joint 5 is larger.

[0032] As a preferred embodiment, the inside of the second through pipe 2 is a stepped hollow structure, the left side is threadedly connected for connecting the pipe joint 5, and the right side is threadedly connected for connecting the second stomach tube joint 4. In addition, a plurality of bolt holes are arranged on the stepped surface 201 of the stepped hollow structure in the second through pipe 2 in the circumferential direction, and the bolt holes are used for installing the rubber duckbill valve 6.

[0033] It should be noted that, as Figure 3 shown, the second through pipe 2 is a hollow structure, and the two ends are provided with internal thread holes, wherein the hole diameter of the internal thread hole matched with the second stomach tube joint 4 is smaller, and the hole diameter of the internal thread hole matched with the pipe joint 5 is larger.

[0034] It should be further explained that the stepped surface 201 of the second through pipe 2 is located Figure 3The right end of the rubber duck valve 6, and the bolt hole in the figure is provided with six, in other embodiments, the number of bolt holes can be designed according to the demand.

[0035] As a preferred embodiment, as shown in Figure 4 The flange 601 and the duckbill part 602 are fixedly connected, and a plurality of bolt holes are provided in the circumferential direction, which are used for connecting the second through pipe 2 inside the step surface 201 through bolts, and the step surface 201 is located at the end of the second through pipe 2 away from the pipe joint 5; the duckbill part is duckbill-shaped and faces the pipe joint 5.

[0036] It should be noted that, in Figure 4 The duckbill part 602 is generally made of elastic material, which can be connected with the flange 601 by adhesive. In addition, the number of bolt holes on the flange 601 is six, which corresponds to the number of bolt holes on the second through pipe 2 in Figure 3 .

[0037] As a preferred embodiment, as shown in Figure 6 The first stomach tube joint 3 is internally stepped hollow structure, and the end connected with the first through pipe 1 is provided with external threads. The second stomach tube joint 4 is internally stepped hollow structure, and the end connected with the second through pipe 2 is provided with external threads. In addition, as shown in Figure 5 The pipe joint 5 is internally stepped hollow structure, and both ends are provided with external threads.

[0038] It should be noted that the first stomach tube joint 3 has an internal stepped hollow structure, which facilitates effective connection with the first through pipe 1, and the end connected with the first through pipe 1 is designed with external threads, which helps to enhance the stability and sealing of the connection. Similarly, the second stomach tube joint 4 also adopts a stepped hollow structure design inside, and is equipped with external threads at the end connected with the second through pipe 2, to ensure the tightness and reliability of the connection. In addition, the intermediate pipe joint 5 is also designed as a stepped hollow structure, and both ends are provided with external threads, which not only ensures the compatibility with the left second stomach tube joint, but also further improves the connection strength and sealing effect of the whole system.

[0039] As a preferred embodiment, the first stomach tube joint 3 has 16, 18, 20, 22 and the like, which can be used to connect different stomach tubes.

[0040] As a preferred embodiment, the first stomach tube joint 3 is connected with the stomach tube.

[0041] As a preferred embodiment, the second stomach tube joint 4 is connected with the syringe.

[0042] The working principle of the anti-reflux stomach tube joint of the utility model is as follows:

[0043] During the infusion of the nutrient solution, the syringe is inserted into the second gastric tube connector 4, the nutrient solution is injected, and the nutrient solution enters the second tube 2 through the rubber duckbill valve 6. When the second gastric tube connector 4 has no liquid pressure, the outlet of the duckbill part 602 of the rubber duckbill valve 6 is closed under the elastic force of itself, preventing the nutrient solution from flowing backward. When the liquid pressure of the second gastric tube connector 4 gradually increases, the outlet of the duckbill part 602 gradually increases, allowing the nutrient solution to flow out in one direction. At this time, the opening pressure of the rubber duckbill valve 6 is very small, so that the nutrient solution can flow smoothly. When the syringe stops injecting the nutrient solution, the reverse nutrient solution or the stomach gas pressure will make the duckbill part 602 of the rubber duckbill valve 6 tightly closed, preventing the nutrient solution from flowing back. The nutrient solution in the second tube 2 passes through the tube connector 5, the first tube 1, the first gastric tube connector 3, and then enters the stomach through the gastric tube.

[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An anti-reflux gastric tube connector, characterized by: It comprises a first stomach tube connector (3), a first through tube (1), a tube connector (5), a second through tube (2) and a second stomach tube connector (4) which are connected in sequence; The first through tube (1), the second through tube (2), the first stomach tube connector (3), the second stomach tube connector (4) and the tube connector (5) are coaxially arranged; A rubber duckbill valve (6) is installed on the inner wall of the second through pipe (2); The outlet of the rubber duckbill valve (6) faces the pipe joint (5) and is used to control the unidirectional flow of the medium along the direction from the rubber duckbill valve (6) to the pipe joint (5).

2. The anti-reflux gastric tube connector according to claim 1, characterized in that: The interior of the first through tube (1) is a stepped hollow structure, one end of which is threadedly connected to the first stomach tube connector (3), and the other end of which is threadedly connected to the tube connector (5).

3. The anti-reflux gastric tube connector according to claim 2, characterized in that: The interior of the second through tube (2) is a stepped hollow structure, one end of which is threadedly connected to the tube connector (5), and the other end of which is threadedly connected to the second stomach tube connector (4).

4. The anti-reflux gastric tube connector according to claim 3, characterized in that: A plurality of bolt holes are provided on a stepped surface (201) of the stepped hollow structure inside the second through pipe (2) along a circumferential direction, and the stepped surface (201) is located at an end of the second through pipe (2) away from the pipe joint (5); The bolt holes are used to install the rubber duckbill valve (6).

5. The anti-reflux gastric tube connector according to claim 1, characterized in that: The interior of the first gastric tube connector (3) is a stepped hollow structure, and one end connected to the first through tube (1) is provided with an external thread.

6. The anti-reflux gastric tube connector according to claim 1, characterized in that: The interior of the second gastric tube connector (4) is a stepped hollow structure, and one end connected to the second through tube (2) is provided with an external thread.

7. The anti-reflux gastric tube connector according to claim 3, characterized in that: The interior of the pipe joint (5) is a stepped hollow structure, with external threads provided at both ends.

8. The anti-reflux gastric tube connector according to claim 4, characterized in that: The rubber duckbill valve (6) comprises a flange (601) and a duckbill portion (602); The flange (601) is fixedly connected to the duckbill portion (602), and is provided with a plurality of bolt holes along the circumferential direction for connecting to the stepped surface (201) inside the second through pipe (2) via bolts; The duckbill portion (602) is in a duckbill shape, with the outlet facing the pipe joint (5).

9. The anti-reflux gastric tube connector according to claim 1, characterized in that: The first gastric tube connector (3) is connected to the gastric tube.

10. The anti-reflux gastric tube connector according to claim 1, characterized in that: The second stomach tube connector (4) is connected to a syringe.

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