Double-cavity nasointestinal tube

Abstract

The utility model discloses a double-cavity type nasointestinal tube, which relates to the technical field of medical instruments and comprises a tube body joint, an outer connecting tube is mounted at the bottom end of the tube body joint, a feeding tube is arranged in the tube body joint, a guide wire is arranged at the upper end in the tube body joint, a first fixing hole is formed in the lower end of the outer side of the outer connecting tube, and a second fixing hole is formed in the lower end of the outer side of the outer connecting tube. The upper end of the outer side of the outer connecting tube is sleeved with a limiting sliding block, and the outer side of the limiting sliding block is provided with an anti-deviation mechanism for preventing the position of the nasointestinal tube from being changed. According to the double-cavity type nasointestinal tube, the feeding tube and the arc-shaped guide head are matched with each other and can supply nutrition to the intestinal tract, the position of the outer end of the nasointestinal tube can be fixed through mutual matching of the first adhesive tape and the second adhesive tape, and the bottom end of the first adhesive tape makes contact with the upper end of the fixing block and is limited in position; and when the position of the outer end part of the nasointestinal tube is fixed, the mounting positions of the first adhesive tape and the second adhesive tape do not deviate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a double-lumen nasoenteric tube. Background Technology

[0002] A double-lumen nasoenteric tube is a medical device mainly used for the treatment of patients with intestinal obstruction and those requiring enteral nutrition. The double-lumen nasoenteric tube has two independent tubes that are separated inside the nasoenteric tube and can be used for different medical purposes.

[0003] When using traditional nasoenteric tubes, the ends need to be fixed in place with medical tape. However, in actual use, the tape may become less sticky due to contact with the skin and need to be replaced. Repeated replacements can cause wear and tear on the surface of the nasoenteric tube.

[0004] To overcome the above-mentioned defects, the existing technology (Chinese patent with announcement number CN217286550U and application date of 2022-08-26) provides a double-lumen nasogastric tube suitable for patients undergoing digestive tract surgery. The bottom end of the tube is fixedly sleeved with an insertion end. By first inserting the insertion end into the patient's body, the insertion end will pull the tube body in during insertion until the tube body is inserted into the first side hole and the second side hole are located in the patient's stomach and intestines, respectively. This can quickly relieve gas in the patient's gastrointestinal tract and improve the patient's comfort. At the same time, by placing the placement layer under the patient's chin and then pulling the first and second straps towards the back of the patient's neck with both hands, the female Velcro is placed on the male Velcro and can be automatically glued, which can achieve the function of preventing detachment and improve the fixation effect of the tube, making it highly practical.

[0005] The aforementioned mechanism uses Velcro to fix the nasoenteric tube in place. However, in actual use, the Velcro itself is not adhesive and is prone to displacement, resulting in the nasoenteric tube not being securely fixed. Utility Model Content

[0006] The purpose of this invention is to provide a double-lumen nasoenteric tube to solve the problem mentioned in the background art that traditional nasoenteric tubes require fixing the end with medical tape during use, but in actual use, the tape's adhesiveness decreases due to contact with the skin and needs to be replaced, and repeated replacements will cause wear and tear on the surface of the nasoenteric tube.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a double-lumen nasoenteric tube, including a tube body connector, an external connecting tube installed at the bottom end of the tube body connector, a feeding tube provided inside the tube body connector, a guide wire provided at the upper end inside the tube body connector, and a first fixing hole opened at the lower end of the outer side of the external connecting tube.

[0008] The upper end of the outer side of the external connecting tube is fitted with a limiting slider, and the outer side of the limiting slider is provided with an anti-displacement mechanism to prevent the position of the nasoenteric tube from changing. The anti-displacement mechanism includes a first adhesive sticker, which is attached to the front end of the limiting slider. The first adhesive sticker is connected to a second adhesive sticker through a connecting layer, and the second adhesive sticker is located at the rear end of the limiting slider.

[0009] The bottom end of the feeding tube is fitted with an arc-shaped guide head via a snap-fit ​​mechanism, and a second fixing hole is provided on the outer side of the arc-shaped guide head.

[0010] Furthermore, a fixing block is provided at the upper end of the surface of the limiting slider, and the fixing block is located below the first adhesive sticker.

[0011] Furthermore, the first adhesive sticker and the second adhesive sticker are of equal length, and the front end of the second adhesive sticker is in contact with the rear end of the limiting slider.

[0012] Furthermore, an auxiliary lubrication mechanism for reducing friction is sleeved on the outer side of the arc-shaped guide head. The auxiliary lubrication mechanism includes a soft bladder, which is sleeved on the outer side of the arc-shaped guide head, and an extrusion port is provided at the bottom end of the soft bladder.

[0013] Furthermore, the extrusion ports are evenly distributed at the bottom end of the soft capsule, and the soft capsule is positioned above the second fixing hole.

[0014] Furthermore, the locking mechanism includes an inner locking block, which is disposed at the bottom end of the feeding tube, and an outer locking block is disposed at the upper end of the outer side of the arc-shaped guide head, which is sleeved on the upper end of the inner locking block.

[0015] Furthermore, the diameter of the lower outer end of the inner snap-fit ​​block is larger than the diameter of the upper outer end, and the cross-section of the inner snap-fit ​​block is frustum-shaped.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The function of the external connecting tube and its first fixing hole is to decompress the gastrointestinal tract and to extract gastric juice or gas to relieve symptoms of gastric retention; the second fixing hole on the surface of the arc-shaped guide is located at the tip of the nasoenteric tube and is used to infuse enteral nutrition solution or drugs to provide nutritional support to the patient.

[0018] Furthermore, an external connecting tube and a feeding tube are inserted, with the external connecting tube located in the stomach and the arc-shaped guide and feeding tube located inside the intestine. The feeding tube and the arc-shaped guide work together to supply nutrition to the intestine. The position of the outer end of the nasoenteric tube is fixed by the cooperation of the first adhesive patch and the second adhesive patch. The first adhesive patch and the second adhesive patch are respectively set at the front end and the rear end of the limiting slider. The bottom end of the first adhesive patch contacts the upper end of the fixing block and restricts its position, so that the installation position of the first adhesive patch and the second adhesive patch will not shift when the position of the outer end of the nasoenteric tube is fixed.

[0019] Furthermore, by setting a limiting slider, the first and second adhesive strips will not come into direct contact with the nasoenteric tube, thereby effectively preventing wear on the outer surface of the nasoenteric tube due to the pulling of the adhesive tape when the nasoenteric tube is repeatedly pasted and limited.

[0020] 2. When it is necessary to insert the nasoenteric tube, the lubricant inside the soft capsule is squeezed out through the extrusion port due to the squeezing force. The extrusion port sprays the lubricant onto the outside of the arc-shaped guide. The lubricant can reduce the friction between the nasoenteric tube and the nasal cavity, pharynx and esophagus, making it easier and smoother to insert the nasoenteric tube into the predetermined position.

[0021] Furthermore, to prevent the second fixing hole on the surface of the arc-shaped guide from becoming clogged, which would render the entire device unusable and reduce comfort, when the second fixing hole is clogged, the outer locking block on the outside of the arc-shaped guide is fitted onto the outside of the inner locking block. This allows for the disassembly and replacement of the arc-shaped guide and the feeding tube. The locking between the outer and inner locking blocks makes the disassembly of the arc-shaped guide more convenient, and the limiting fixation between the arc-shaped guide and the feeding tube increases the overall comfort during use. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a side sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the anti-deviation mechanism of this utility model;

[0025] Figure 4 This is a frontal sectional view of the present invention.

[0026] Figure 5 This is a schematic diagram of the arc-shaped guide head of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the feeding tube and the external connecting tube of this utility model.

[0028] In the diagram: 1. Tube connector; 2. Guide wire; 3. External connecting tube; 4. First fixing hole; 5. Feeding tube; 6. Arc-shaped guide head; 7. Second fixing hole; 8. Limiting slider; 9. First adhesive tape; 10. Second adhesive tape; 11. Fixing block; 12. Soft capsule; 13. Extrusion port; 14. External clamping block; 15. Internal clamping block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0030] like Figures 1-4 and Figure 6 The technical solution shown addresses the problem of traditional nasoenteric tubes requiring fixation at the end with medical tape, which often leads to decreased adhesiveness and replacement due to skin contact, causing wear on the tube surface after repeated replacements. This dual-lumen nasoenteric tube discloses an anti-deviation mechanism, including a tube connector 1, an external connecting tube 3 at the bottom, a feeding tube 5 inside the connector 1, a guide wire 2 at the upper end inside the connector 1, and a first fixing hole 4 at the lower end of the external connecting tube 3. A limiting slider 8 is sleeved on the upper end of the outer side of the 3, and an anti-displacement mechanism is provided on the outer side of the limiting slider 8 to prevent the position of the nasoenteric tube from changing. The anti-displacement mechanism includes a first adhesive sticker 9, which is attached to the front end of the limiting slider 8. The first adhesive sticker 9 is connected to a second adhesive sticker 10 through a connecting layer. The second adhesive sticker 10 is located at the rear end of the limiting slider 8. A fixing block 11 is provided on the upper end of the surface of the limiting slider 8, and the fixing block 11 is located below the first adhesive sticker 9. The lengths of the first adhesive sticker 9 and the second adhesive sticker 10 are equal, and the front end of the second adhesive sticker 10 is in contact with the rear end of the limiting slider 8.

[0031] In this example, the external connecting tube 3 and its first fixing hole 4 serve to decompress the gastrointestinal tract, and are used to extract gastric juice or gas to relieve symptoms of gastric retention; the second fixing hole 7 on the surface of the arc-shaped guide 6 is located at the tip of the nasoenteric tube and is used to infuse enteral nutrition solution or drugs to provide nutritional support to the patient.

[0032] The external connecting tube 3 and the feeding tube 5 are inserted so that the external connecting tube 3 can be located in the stomach, while the arc-shaped guide 6 and the feeding tube 5 are located inside the intestine. This allows the feeding tube 5 and the arc-shaped guide 6 to work together to supply nutrition to the intestine. The position of the outer end of the nasoenteric tube can be fixed by the cooperation of the first adhesive patch 9 and the second adhesive patch 10. The first adhesive patch 9 and the second adhesive patch 10 are respectively set at the front end and the rear end of the limiting slider 8. The bottom end of the first adhesive patch 9 contacts the upper end of the fixing block 11 and restricts its position, so that the installation position of the first adhesive patch 9 and the second adhesive patch 10 will not be offset when the position of the outer end of the nasoenteric tube is fixed.

[0033] By setting a limiting slider 8, the first adhesive sticker 9 and the second adhesive sticker 10 will not come into direct contact with the nasoenteric tube, thereby effectively preventing wear on the outer surface of the nasoenteric tube due to the pulling of the adhesive tape when the nasoenteric tube is repeatedly pasted and limited. Example 2

[0034] like Figure 1 , Figure 2 , Figure 4 and Figure 5 The technical solution shown addresses the issue of needing to apply paraffin oil separately to reduce irritation to the nasal cavity and throat when using a nasoenteric tube. This dual-lumen nasoenteric tube discloses an auxiliary lubrication mechanism. An auxiliary lubrication mechanism for reducing friction is fitted around the outer side of the arc-shaped guide head 6. The auxiliary lubrication mechanism includes a soft capsule 12, which is fitted around the outer side of the arc-shaped guide head 6. An extrusion port 13 is provided at the bottom end of the soft capsule 12, and the extrusion ports 13 are evenly distributed at the bottom end of the soft capsule 12. The soft capsule 12 is positioned above the second fixing hole 7.

[0035] In this example, by adding a suitable lubricant to the inside of the soft capsule 12, when the nasoenteric tube needs to be inserted, the soft capsule 12 is squeezed, causing the lubricant inside the soft capsule 12 to be discharged through the extrusion port 13 due to the squeezing force. The extrusion port 13 sprays the lubricant onto the outside of the arc-shaped guide head 6. Since the extrusion ports 13 are evenly spaced at the bottom of the soft capsule 12, the lubricant inside the soft capsule 12 can be sprayed evenly. The lubricant can reduce the friction between the nasoenteric tube and the nasal cavity, pharynx, and esophagus, making it easier and smoother to insert the nasoenteric tube into the predetermined position. Example 3

[0036] like Figure 1 , Figure 4 , Figure 5The technical solution shown addresses the potential blockage of the nasoenteric tube after a period of use. The dual-lumen nasoenteric tube discloses a locking mechanism. An arc-shaped guide head 6 is mounted at the bottom of the feeding tube 5 via this mechanism, and a second fixing hole 7 is provided on the outer side of the arc-shaped guide head 6. The locking mechanism includes an inner locking block 15, which is positioned at the bottom of the feeding tube 5. An outer locking block 14 is positioned at the upper end of the outer side of the arc-shaped guide head 6, and is fitted onto the upper end of the inner locking block 15. The diameter of the lower outer end of the inner locking block 15 is larger than the diameter of its upper outer end, and the cross-section of the inner locking block 15 is frustum-shaped.

[0037] In this example, to avoid the second fixing hole 7 on the surface of the arc-shaped guide head 6 becoming blocked and rendering the whole unit unusable, when the second fixing hole 7 is blocked, the outer locking block 14 on the outside of the arc-shaped guide head 6 is sleeved on the outside of the inner locking block 15, thereby realizing the disassembly and replacement between the arc-shaped guide head 6 and the feeding tube 5. The locking between the outer locking block 14 and the inner locking block 15 makes the disassembly of the arc-shaped guide head 6 more convenient.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-lumen nasoenteric tube, comprising a tube body connector (1), an external connecting tube (3) installed at the bottom end of the tube body connector (1), and a feeding tube (5) provided inside the tube body connector (1), a guide wire (2) provided at the upper end inside the tube body connector (1), and a first fixing hole (4) opened at the lower end outside the external connecting tube (3). characterized in that The upper end of the outer side of the external connecting tube (3) is fitted with a limiting slider (8), and the outer side of the limiting slider (8) is provided with an anti-deviation mechanism to prevent the nasoenteric tube from changing position. The anti-deviation mechanism includes a first adhesive sticker (9), and the first adhesive sticker (9) is attached to the front end of the limiting slider (8). The first adhesive sticker (9) is connected to a second adhesive sticker (10) through a connecting layer, and the second adhesive sticker (10) is located at the rear end of the limiting slider (8). The bottom end of the feeding tube (5) is fitted with an arc-shaped guide head (6) via a snap-fit ​​mechanism, and a second fixing hole (7) is provided on the outer side of the arc-shaped guide head (6).

2. A dual lumen naso-enteric tube according to claim 1, wherein: A fixing block (11) is provided at the upper end of the surface of the limiting slider (8), and the fixing block (11) is located below the first adhesive sticker (9).

3. A dual lumen naso-enteric tube according to claim 2, wherein: The first adhesive sticker (9) and the second adhesive sticker (10) are of equal length, and the front end of the second adhesive sticker (10) is in contact with the rear end of the limiting slider (8).

4. A dual lumen naso-enteric tube according to claim 1, wherein: An auxiliary lubrication mechanism for reducing friction is sleeved on the outer side of the arc-shaped guide (6). The auxiliary lubrication mechanism includes a soft bladder (12), which is sleeved on the outer side of the arc-shaped guide (6). An extrusion port (13) is provided at the bottom end of the soft bladder (12).

5. A dual lumen naso-enteric tube according to claim 4, wherein: The extrusion ports (13) are evenly distributed at the bottom of the soft capsule (12), and the soft capsule (12) is positioned above the second fixing hole (7).

6. A dual lumen naso-enteric tube according to claim 1, wherein: The locking mechanism includes an inner locking block (15), which is located at the bottom end of the feeding tube (5), and an outer locking block (14) is located at the upper end of the outer side of the arc-shaped guide (6), which is sleeved on the upper end of the inner locking block (15).

7. A dual lumen naso-enteric tube according to claim 6, wherein: The diameter of the lower outer end of the inner snap-fit ​​block (15) is greater than the diameter of the upper outer end, and the cross-section of the inner snap-fit ​​block (15) is frustum-shaped.

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