Blind insertion three-cavity nasal gastrointestinal tube

Abstract

The blind insertion three-cavity nasal gastrointestinal tube comprises a claw-shaped connector, and a main intestine port is formed in the front end of the upper portion of the claw-shaped connector. A side intestine port and a stomach port are respectively formed in the side ends of the upper part of the claw-shaped connector; a pipe port is formed in the lower portion of the claw-shaped connector and connected with a thick pipe. A first cavity, a second cavity and a third cavity are formed in the thick pipe, and the first cavity, the second cavity and the third cavity are not communicated with one another; the main intestine port is communicated with the first cavity; the side intestine port is communicated with the second cavity; the stomach port is communicated with the third cavity; the other end of the second cavity is connected with a thin tube; a plurality of first side holes communicated with the third cavity are formed in the side part of the thick pipe; and a plurality of second side holes are formed in the thin tube. The stomach and intestine pressure reducing device can reduce the pressure of the stomach and intestine while meeting nutrition supply in the stomach and intestine, and improves the comfort level of a patient.

Description

Technical Field

[0001] This utility model relates to a blind-insertion three-cavity nasogastric tube, belonging to the field of medical device technology. Background Technology

[0002] A nasogastric tube is a medical device typically used to provide nutritional support or medication to patients. It is an infusion tube inserted into the patient's stomach or intestines through the nasal cavity or mouth. The nasogastric tube can deliver nutritional solutions or medications to meet the patient's nutritional or therapeutic needs. It is suitable for patients requiring long-term or extended nutritional support, such as those with severe digestive system diseases, post-oral surgery, swallowing disorders, or comatose patients. Insertion of a nasogastric tube requires professional medical personnel and regular care and monitoring. For example, Chinese utility model patent CN221229652U discloses a multifunctional nasogastric tube, specifically including a tube head, a flexible tube inserted into the inner cavity of the tube head, a retaining ring fixed to one end of the flexible tube near the tube head, a drainage groove and multiple drainage holes at the other end of the tube head, a connecting port fixed to the upper surface of the tube head, a first sleeve fitted onto the surface of the tube head, a first connecting strip fixed to the surface of the first sleeve, and a first rubber stopper fixed to the extended end of the first connecting strip; an insertion tube is fitted into one side of the tube head. When treating the gastrointestinal tract separately, this method requires constant insertion and removal to adjust the position of the drainage channel and drainage hole, which can easily cause discomfort to the patient. Utility Model Content

[0003] The purpose of this invention is to provide a blind-insertion three-lumen nasogastric tube. This invention can meet the nutritional needs of the gastrointestinal tract while simultaneously reducing gastrointestinal pressure, thus improving patient comfort.

[0004] The technical solution of this utility model is as follows: A blind-insertion three-lumen nasogastric tube includes a claw-shaped connector, with a main intestinal port at the upper front end of the claw-shaped connector; a lateral intestinal port and a gastric port are respectively provided on the upper side end of the claw-shaped connector; a tube port is provided at the lower part of the claw-shaped connector, and a thick tube is connected to the tube port; the thick tube has a first lumen, a second lumen, and a third lumen inside, which are not interconnected; the main intestinal port is connected to the first lumen; the lateral intestinal port is connected to the second lumen; the gastric port is connected to the third lumen; a thin tube is connected to the other end of the second lumen; the side of the thick tube has multiple first side holes that communicate with the third lumen; the thin tube has multiple second side holes.

[0005] In the aforementioned blind-insertion three-lumen nasogastric tube, the end of the thin tube is a solid tube, and multiple steel balls are installed inside the solid tube.

[0006] The aforementioned blind-insertion three-lumen nasogastric tube is equipped with an interface conversion mechanism on the main intestinal port, lateral intestinal port, and gastric port.

[0007] The aforementioned blind-insertion three-lumen nasogastric tube includes an interface conversion mechanism comprising a first connecting rope disposed on the side of the corresponding port, the other end of the first connecting rope being provided with a large cover plate, the large cover plate being provided with a large plug, the large plug being engaged with the corresponding port; the large plug being provided with a through hole; a second connecting rope disposed on the side of the large cover plate, the other end of the second connecting rope being provided with a small cover plate, the small cover plate being provided with a small plug, the small plug being engaged with the through hole.

[0008] The aforementioned blind-insertion three-lumen nasogastric tube has a guide wire interface connected to the main intestinal port, and a guide wire is connected inside the guide wire interface, with the guide wire inserted into the first lumen.

[0009] The aforementioned blind-insertion three-lumen nasogastric tube has an inner bevel at the end of the thick tube and an oblique cut at the end of the thin tube, which cooperates with the inner bevel.

[0010] The aforementioned blind-insertion three-lumen nasogastric tube has an annular groove on the inner side of the end of the thick tube and a convex ring on the outer side of the end of the thin tube, which cooperates with the annular groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In this invention, a thin tube is connected to a thick tube. The thin tube is then inserted into the stomach through the patient's mouth or nose. Due to its smaller diameter, the thin tube can be inserted blindly into the patient's intestines, while the thick tube remains in the stomach. When nutritional support is needed for the intestines, the nutrient solution is injected through the lateral intestinal port. The nutrient solution flows through the second cavity and exits through the second side hole of the thin tube into the patient's intestines. When nutritional support is needed for the stomach, the nutrient solution is injected through the gastric port. The nutrient solution flows through the third cavity and exits through the first side hole into the patient's stomach. Alternatively, a suction device can be connected to the gastric or lateral intestinal port to remove waste from the patient's gastrointestinal tract. Therefore, this invention achieves the effect of simultaneously providing early enteral nutrition and gastrointestinal decompression by placing a single nasogastric tube, offering advantages such as simple structure and convenient practicality.

[0013] 2. In this utility model, by replacing the end of the thin tube with a solid tube and setting steel balls inside to increase the hardness of the solid tube, the thin tube is made easier to insert into the patient's intestine.

[0014] 3. In this utility model, the interface conversion mechanism enables the main intestinal port, lateral intestinal port and stomach port to be compatible with various specifications of external devices. When the external device interface is small, the large plug is inserted into the corresponding port and then connected to the external device through the through hole; when the small plug is inserted into the through hole and the large plug is inserted into the corresponding port, external bacteria and dust can be prevented from entering when the port is not in use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is an enlarged view of the inner slope section.

[0018] The labels in the attached diagram are as follows: 1-claw-shaped connector, 2-main intestine port, 3-lateral intestine port, 4-stomach port, 5-tube port, 6-thick tube, 7-thin tube, 8-first side hole, 9-second side hole, 10-interface conversion mechanism, 13-first connecting rope, 14-large cover plate, 15-large plug, 16-through hole, 17-second connecting rope, 18-small cover plate, 19-small plug, 20-guide wire interface, 21-guide wire, 22-inner slope, 23-oblique cut, 24-annular groove, 25-convex ring, 61-first cavity, 62-second cavity, 63-third cavity, 71-solid tube, 72-steel ball. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] Example: A blind-insertion three-lumen nasogastric tube, configured as follows Figure 1-3 As shown, it includes a claw-shaped connector 1, which is made of plastic. The upper front end of the claw-shaped connector 1 has a main intestine port 2; the upper side end of the claw-shaped connector 1 has a lateral intestine port 3 and a stomach port 4; the lower part of the claw-shaped connector 1 has a tube port 5, which is connected to a thick tube 6. The thick tube 6 is a transparent plastic flexible tube, 90cm in length and 6mm in diameter. Figure 2As shown, the thick tube 6 has a first cavity 61, a second cavity 62, and a third cavity 63 inside, which are not interconnected. The first cavity 61 is located inside the thick tube 6 near the main intestinal port 2 and is connected to the main intestinal port 2. The second cavity 62 is located inside the thick tube 6 near the lateral intestinal port 3 and is connected to the lateral intestinal port 3. The third cavity 63 is located between the first cavity 61 and the second cavity 62 and is connected to the gastric port 4. The other end of the second cavity 62 is connected to a thin tube 7, which is a transparent plastic tube with a total length of 30cm and a diameter of 3mm. The side of the thick tube 6 has multiple first side holes 8 that are connected to the third cavity 63. The first side holes 8 are used to connect to the gastric port 4. When the nutrient solution is injected, it leaks out through the first side hole after passing through the third cavity 63, thus entering the patient's stomach. The end of the third cavity 63 is closed and not connected to the outside. The upper side of the thin tube 7 has three elliptical second side holes 9. When the nutrient solution is injected into the lateral intestinal port 3, it flows through the second cavity 62 and into the thin tube 7, leaking out through the second side holes 9 into the patient's intestine. When it is necessary to aspirate the fluid in the intestine, the lateral intestinal port 3 is connected to an external suction device, so that the fluid is sucked in through the second side holes 9 and flows through the thin tube 7 and the second cavity 62 to the lateral intestinal port 3. The end of the thin tube 7 is closed and not connected to the outside, with a long diameter of 3 mm and a short diameter of 2.5 mm. The other end of the first cavity 61 is connected to the outside.

[0021] Preferably, such as Figure 2 As shown, the end of the thin tube 7 is a solid tube 71, which is 5 cm long. Multiple steel balls 72, each with a diameter of 2.5 mm, are inserted into the solid tube 71 starting 3 mm from its tip. By replacing the end of the thin tube 7 with a solid tube 71 and adding steel balls 72 inside, the rigidity of the solid tube 71 is increased, making it easier to insert the thin tube 7 into the patient's intestine.

[0022] Preferably, such as Figure 1As shown, the main intestinal port 2 and the lateral intestinal port 3 are provided with a second conversion mechanism 11 on their sides, and the stomach port 4 is provided with an interface conversion mechanism 10. The interface conversion mechanism 10 includes a first connecting rope 13 provided on the side of the corresponding port, the other end of the first connecting rope 13 is provided with a large cover plate 14, the large cover plate 14 is provided with a large plug 15, the large plug 15 cooperates with the corresponding port; the large plug 15 is provided with a through hole 16; the side of the large cover plate 14 is provided with a second connecting rope 17, the other end of the second connecting rope 17 is provided with a small cover plate 18, the small cover plate 18 is provided with a small plug 19, the small plug 19 cooperates with the through hole 16. The first conversion mechanism 10, the second conversion mechanism 11, and the third conversion mechanism 12 enable the main intestinal port 2, the lateral intestinal port 3, and the gastric port 4 to be compatible with various sizes of external devices. When the external device interface is small, the large plug 15 is inserted into the corresponding port and then connected to the external device through the through hole 16. When the small plug 19 is inserted into the through hole 16 and the large plug 15 is inserted into the corresponding port, it can prevent external bacteria and dust from entering when the port is not in use. The large cover plate 14 facilitates the separation of the large plug 15 from the corresponding port, and the small cover plate 18 facilitates the separation of the small plug 19 from the through hole 16.

[0023] Preferably, such as Figure 2 As shown, a guide wire interface 20 is connected to the main intestinal port 2, and a guide wire 21 is connected inside the guide wire interface 20. The guide wire 21 passes through the first cavity 61 and exits from the end of the first cavity 61 to the patient's stomach. This can be used to better observe the patient's gastrointestinal condition and at the same time help patients who cannot swallow to ingest water and food.

[0024] Preferably, such as Figure 3 As shown, the end of the thick tube 6 is provided with an inner slope portion 22; the end of the thin tube 7 is provided with a beveled portion 23, which cooperates with the inner slope portion 22. By connecting the beveled portion 23 and the inner slope portion 22, the diameter of the thin tube 7 and the diameter of the second cavity 62 can be matched and connected.

[0025] Preferably, such as Figure 3 As shown, the inner side of the end of the thick tube 6 is provided with an annular groove 24; the outer side of the end of the thin tube 7 is provided with a convex ring 25, which cooperates with the annular groove 24. Through the cooperation of the convex ring 25 and the annular groove 24, the thin tube 7 is not easily detached from the thick tube 6.

[0026] Working principle:

[0027] Insert the oblique cut 23 of the thin tube 7 into the inner slope 22 of the thick tube 6, and engage the convex ring 25 in the annular groove 24 to connect the thin tube 7 and the thick tube 6. Then, insert the thin tube 7 into the stomach through the patient's mouth or nose. Due to the small diameter of the thin tube 7, it can be inserted into the patient's intestines blindly, while the thick tube 6 remains in the patient's stomach. When nutritional supply to the patient's intestines is needed, inject the nutrient solution through the lateral intestinal port 3. The nutrient solution flows through the second lumen 62 and then out through the second side hole 9 of the thin tube 7 into the patient's intestines. When nutritional supply to the patient's stomach is needed, inject the nutrient solution through the gastric port 4. The nutrient solution flows through the third lumen 63 and then out through the first side hole 8 into the patient's stomach. Alternatively, by connecting a suction device to the gastric port 4 or the lateral intestinal port 3, waste can be suctioned from the patient's stomach and intestines. Insert the guidewire interface 20 into the main intestinal port 2 and insert the guidewire 21 into the first lumen 61 for operation.

Claims

1. A blind insertion trachea-gastric-jejunal tube, characterized in that: The utility model provides a kind of gastroenteric tube, including claw-shaped connector (1), the upper end of claw-shaped connector (1) is equipped with main intestine port (2);The upper side end of claw-shaped connector (1) is equipped with side intestine port (3) and stomach port (4) respectively;The lower part of claw-shaped connector (1) is equipped with pipe port (5), pipe port (5) is connected with thick pipe (6);The inside of thick pipe (6) is equipped with first cavity (61), second cavity (62) and third cavity (63), and first cavity (61), second cavity (62) and third cavity (63) are not communicated with each other;Main intestine port (2) is communicated with first cavity (61);Side intestine port (3) is communicated with second cavity (62);Stomach port (4) is communicated with third cavity (63);Second cavity (62) other end is connected with thin pipe (7);The side of thick pipe (6) is equipped with a plurality of first side hole (8) being communicated with third cavity (63);Thin pipe (7) is equipped with a plurality of second side hole (9).

2. The blind insertion trachea-gastrointestinal tube according to claim 1, wherein: The end of the thin pipe (7) is a solid tube (71), and a plurality of steel balls (72) are arranged in the solid tube (71).

3. The blind insertion trachea-gastrointestinal tube according to claim 1, wherein: The main intestine port (2), the side intestine port (3) and the stomach port (4) are all provided with an interface conversion mechanism (10).

4. The blind insertion trachea-gastrointestinal tube according to claim 3, characterized in that: The interface conversion mechanism (10) includes a first connecting rope (13) arranged on the side of the corresponding port, the other end of the first connecting rope (13) is provided with a large cover plate (14), the large cover plate (14) is provided with a large plug column (15), and the large plug column (15) is matched with the corresponding port; the large plug column (15) is provided with a through hole (16); the side of the large cover plate (14) is provided with a second connecting rope (17), the other end of the second connecting rope (17) is provided with a small cover plate (18), the small cover plate (18) is provided with a small plug column (19), and the small plug column (19) is matched with the through hole (16).

5. The blind insertion trachea-gastroenteral tube according to claim 1, wherein: The main intestine port (2) is connected with a guide wire interface (20), the guide wire interface (20) is connected with a guide wire (21) inside, and the guide wire (21) penetrates into the first cavity (61).

6. The blind insertion trachea-gastrointestinal tube according to claim 1, wherein: The end of the thick pipe (6) is provided with an inner inclined slope (22); the end of the thin pipe (7) is provided with an inclined cutting part (23), and the inclined cutting part (23) is matched with the inner inclined slope (22).

7. The blind insertion trachea-gastroenteral tube according to claim 1, wherein: The inside of the end of the thick pipe (6) is provided with a ring groove (24); the outside of the end of the thin pipe (7) is provided with a convex ring (25), and the convex ring (25) is matched with the ring groove (24).

Images