Gastric tube with anti-backflow function for clinical nursing

Abstract

This utility model discloses a gastric tube for clinical nursing with anti-backflow function. The gastric tube for clinical nursing with anti-backflow function includes a main flow tube and a secondary flow tube. The main flow tube contains an insertion tube and a sheath, while the secondary flow tube contains a blocking sleeve, valve one, and valve two. The main flow tube can be pinched and inserted into the secondary flow tube. During this process, a plastic spring continuously pushes the sheath towards its lowest point, forcing the sheath and its lower protective layer to open valve one. Subsequently, the blocking sleeve restricts the sheath's downward movement, causing the insertion tube to open the protective layer, making the protective layer and valve one adhere to each other. The insertion tube then continues to move downward, opening valve two until it passes through valve two. Air and dust / particulate matter only come into contact with valve one and the protective layer, avoiding contact with the insertion tube and valve two, thus effectively reducing the possibility of dust and rubber particles entering the gastric tube.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a gastric tube for clinical nursing with anti-backflow function. Background Technology

[0002] A nasogastric tube is a medical device, usually made of polyvinyl chloride or other soft materials, used to deliver nutrients, fluids, and medications into the gastrointestinal tract via the nose. It is an important tool for providing enteral nutritional support, especially suitable for patients who refuse to eat, are in a coma, have oral diseases, or are unable to swallow after surgery.

[0003] To prevent gastric infections and reflux, a funnel-shaped valve is usually installed at the inlet end of the gastric tube. This valve has a certain one-way restrictive function. However, this anti-reflux valve still has some drawbacks. Gastric tubes are often used to introduce nutrient solutions and water. After frequent use, the outer side of the valve is prone to accumulating debris such as dust and rubber particles. If this debris enters the stomach, it may increase the digestive burden on the patient's stomach and also pose a risk of infection. To avoid these problems, this utility model proposes a clinical nursing gastric tube with anti-reflux function. Utility Model Content

[0004] The main purpose of this invention is to provide a gastric tube for clinical care with anti-backflow function, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A gastric tube for clinical nursing with anti-backflow function includes a main flow tube and a secondary flow tube. The main flow tube is provided with an insertion tube and a sleeve inside. A plastic spring is sleeved on the outside of the insertion tube. The sleeve is sleeved on the outside of the insertion tube. A protective layer is provided at the bottom end of the sleeve. The secondary flow tube is provided with a blocking sleeve, valve one, and valve two inside.

[0007] Preferably, a first connector is fixedly installed on the outer surface of the main flow pipe, and a second connector is fixedly installed on the outer surface of the secondary flow pipe, wherein the first connector and the second connector are interlocked.

[0008] Preferably, the inner wall of the main tube and the outer surface of the insertion tube are fixedly installed, the outer surface of the insertion tube and the inner wall of the sleeve are slidably connected, an annular plate is fixedly installed at the top of the sleeve, and several through holes are opened on the inner side of the annular plate.

[0009] Preferably, the plastic spring is sleeved on the outer surface of the insertion tube, with the top end of the plastic spring fixedly installed to the outer surface of the insertion tube and the bottom end of the plastic spring fixedly installed to the outer surface of the annular plate.

[0010] Preferably, a limiting ring is fixedly installed at the bottom end of the insertion tube, and the outer surface of the limiting ring is slidably connected to the inner wall of the sleeve.

[0011] Preferably, the protective layer includes a hard plastic ring, the outer surface of the sleeve and the inner wall of the hard plastic ring are fixedly installed, two plastic films are fixedly installed on the outer surface of the hard plastic ring, and an expansion ring is fixedly installed on the outer surface of the sleeve near the bottom end.

[0012] Preferably, a rigid plastic head is fixedly installed at the bottom end of the cannula, and several through grooves are opened on the inner side of the rigid plastic head.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, through the cooperation of the main flow tube, the secondary flow tube, the plastic spring, the sleeve, the protective layer, valve one, valve two, and the blocking sleeve, the main flow tube can be held by hand and inserted into the secondary flow tube. During this process, the plastic spring will always push the sleeve towards the bottom, forcing the sleeve and the protective layer below it to open valve one. Then, due to the restriction of the blocking sleeve, the sleeve is forced to stop moving downwards, so the tube will push open the protective layer, making the protective layer and valve one fit together. Then the tube continues to move downwards and push open valve two until it passes through valve two. Air and dust and particles are only in contact with valve one and the protective layer, avoiding contact with the tube and valve two, thereby effectively reducing the possibility of such dust and rubber particles entering the gastric tube.

[0015] In this invention, the sleeve, hard plastic ring, and plastic film work together. The hard plastic ring itself has high hardness and is not easily deformed. The two plastic films overlap to protect the internal cannula from external bacteria and dust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a gastric tube for clinical nursing with anti-backflow function according to the present invention;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of a gastric tube for clinical nursing with anti-backflow function according to the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the main tube and the secondary tube of a gastric tube for clinical nursing with anti-backflow function according to this utility model.

[0019] Figure 4 This is a schematic diagram of the insertion bottom of a gastric tube for clinical nursing with anti-backflow function according to this utility model;

[0020] Figure 5This is a schematic diagram of the overall internal plan of a gastric tube for clinical nursing with anti-backflow function according to the present invention.

[0021] In the diagram: 1. Main flow tube; 2. Secondary flow tube; 3. Insertion tube; 4. Plastic spring; 5. Sleeve; 6. Protective layer; 7. Barrier sleeve; 8. Valve 1; 9. Valve 2; 10. Connector 1; 11. Connector 2; 12. Annular plate; 13. Limiting ring; 14. Hard plastic ring; 15. Plastic film; 16. Expansion ring; 17. Hard plastic head; 18. Through groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-5 As shown, a clinical nursing gastric tube with anti-backflow function includes a main flow tube 1 and a secondary flow tube 2. The main flow tube 1 has an insertion tube 3 and a sheath 5 inside. A plastic spring 4 is fitted around the outside of the insertion tube 3. The sheath 5 is fitted over the insertion tube 3, and a protective layer 6 is provided at the bottom end of the sheath 5. The secondary flow tube 2 has a blocking sleeve 7, a valve 1 8, and a valve 2 9 inside. During use, the main flow tube 1 can be pinched and inserted into the secondary flow tube 2. During this process, the plastic spring 4 will continuously push the sheath 5 towards the bottom, forcing the sheath 5... The protective layer 6 below pushes open valve 8. Then, restricted by the blocking sleeve 7, the cannula 5 is forced to stop moving downward. Therefore, the cannula 3 will push open the protective layer 6, so that the protective layer 6 and valve 8 fit together. Then the cannula 3 continues to move downward and push open valve 9 until it passes through valve 9. Air and dust and particles are only in contact with valve 8 and the protective layer 6, avoiding contact between the cannula 3 and valve 9, thus effectively reducing the possibility of such dust and rubber particles entering the gastric tube.

[0024] A connector 10 is fixedly installed on the outer surface of the main flow tube 1, and a connector 21 is fixedly installed on the outer surface of the secondary flow tube 2. The connector 10 and the connector 21 are interlocked. The connector 10 and the connector 21 are made of rigid plastic. When in use, the connector 10 and the connector 21 can be pinched by hand and brought close together and interlocked. After interlocking, the cannula 3 in the main flow tube 1 can be forced to insert the valve 18 and the valve 29 in the secondary flow tube 2.

[0025] The inner wall of the main tube 1 is fixedly installed with the outer surface of the insertion tube 3. The outer surface of the insertion tube 3 is slidably connected with the inner wall of the sleeve 5. An annular plate 12 is fixedly installed at the top of the sleeve 5. Several through holes are opened on the inner side of the annular plate 12. The through holes opened on the inner side of the annular plate 12 can ensure air circulation and ensure that the space between the annular plate 12 and the top of the insertion tube 3 maintains a stable pressure when the sleeve 5 moves upward.

[0026] The plastic spring 4 is sleeved on the outer surface of the insertion tube 3. The top end of the plastic spring 4 is fixedly installed on the outer surface of the insertion tube 3, and the bottom end of the plastic spring 4 is fixedly installed on the outer surface of the annular plate 12. The plastic spring 4 can push the annular plate 12 of the sleeve 5 with the insertion tube 3 as the fixed point, forcing the sleeve 5 to always remain in the lowest position without being subjected to other external forces.

[0027] A limiting ring 13 is fixedly installed at the bottom end of the cannula 3. The outer surface of the limiting ring 13 is slidably connected to the inner wall of the sleeve 5. The limiting ring 13 can provide a minimum limit for the sleeve 5 to prevent the sleeve 5 from being pushed down by the plastic spring 4 and detached from the cannula 3.

[0028] The protective layer 6 includes a hard plastic ring 14. The outer surface of the sleeve 5 is fixedly installed to the inner wall of the hard plastic ring 14. Two plastic film sheets 15 are fixedly installed on the outer surface of the hard plastic ring 14. An expansion ring 16 is fixedly installed on the outer surface of the sleeve 5 near the bottom. The hard plastic ring 14 itself has high hardness and is not easily deformed. The two plastic film sheets 15 overlap each other and can protect the internal insertion tube 3 to prevent infection by external bacteria and dust.

[0029] A rigid plastic head 17 is fixedly installed at the bottom of the cannula 3. Several through grooves 18 are opened on the inner side of the rigid plastic head 17. The rigid plastic head 17 itself has high hardness. When the cannula 5 and the rigid plastic ring 14 stop moving, the rigid plastic head 17 can directly break through the plastic film 15 and the valve 2 9, and communicate with the interior of the auxiliary flow tube 2 through the through grooves 18.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clinical nursing stomach tube with anti-backflow function, characterized in that: It includes a main flow tube (1) and a secondary flow tube (2). The main flow tube (1) is provided with an insertion tube (3) and a sleeve (5). A plastic spring (4) is sleeved on the outside of the insertion tube (3). The sleeve (5) is sleeved on the outside of the insertion tube (3). A protective layer (6) is provided at the bottom end of the sleeve (5). The secondary flow tube (2) is provided with a blocking sleeve (7), valve one (8) and valve two (9).

2. The clinical nursing stomach tube with anti-backflow function according to claim 1, characterized in that: A connecting seat one (10) is fixedly installed on the outer surface of the main flow pipe (1), and a connecting seat two (11) is fixedly installed on the outer surface of the secondary flow pipe (2). The connecting seat one (10) and the connecting seat two (11) are plugged into each other.

3. The gastric tube with anti-reflux function for clinical care according to claim 1, characterized in that: The inner wall of the main tube (1) is fixedly installed with the outer surface of the insertion tube (3), the outer surface of the insertion tube (3) is slidably connected with the inner wall of the sleeve (5), and an annular plate (12) is fixedly installed at the top of the sleeve (5). Several through holes are opened on the inner side of the annular plate (12).

4. The clinical nursing stomach tube with anti-backflow function according to claim 3, characterized in that: The plastic spring (4) is sleeved on the outer surface of the insertion tube (3). The top end of the plastic spring (4) is fixedly installed on the outer surface of the insertion tube (3), and the bottom end of the plastic spring (4) is fixedly installed on the outer surface of the annular plate (12).

5. The clinical nursing stomach tube with anti-backflow function according to claim 1, characterized in that: A limiting ring (13) is fixedly installed at the bottom end of the insertion tube (3), and the outer surface of the limiting ring (13) is slidably connected to the inner wall of the sleeve (5).

6. The gastric tube with anti-reflux function for clinical care according to claim 1, characterized in that: The protective layer (6) includes a hard plastic ring (14), the outer surface of the sleeve (5) is fixedly installed to the inner wall of the hard plastic ring (14), two plastic film sheets (15) are fixedly installed on the outer surface of the hard plastic ring (14), and an expansion ring (16) is fixedly installed on the outer surface of the sleeve (5) near the bottom.

7. The gastric tube with anti-reflux function for clinical care according to claim 1, characterized in that: The bottom end of the cannula (3) is fixedly installed with a hard plastic head (17), and the inner side of the hard plastic head (17) is provided with several through grooves (18).

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