Double-cavity nasogastric tube for gastric lavage

By designing a double-lumen nasogastric tube and limiting components, the problems of cumbersome operation and loosening of existing nasogastric tubes have been solved, achieving a highly efficient and comfortable gastric lavage effect.

CN223901036UActive Publication Date: 2026-02-13FUJIAN PROVINCIAL HOSPITAL
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Patent Information

Application Number
CN202423033039.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2026-02-13
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

Existing nasogastric tubes require repeated flushing by medical staff during gastric lavage, which is inefficient, causes significant discomfort to patients, and can easily lead to loosening and displacement of the tube, affecting the effectiveness of the lavage.

Method used

A dual-lumen nasogastric tube was designed, comprising a main tube and a secondary tube for dispensing and aspirating fluid, respectively. It is equipped with a limiting ring and a wearing cord to secure the nasogastric tube, reducing loosening and improving operational efficiency and comfort.

Benefits of technology

It enables continuous infusion and extraction of gastric lavage fluid, reduces patient discomfort, improves gastric lavage efficiency, and secures the nasogastric tube with a limiting component to prevent loosening and ensure a smooth gastric lavage process.

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Abstract

The utility model relates to a double-cavity nasogastric tube for gastric lavage, which belongs to the technical field of gastric lavage and comprises a main tube and an auxiliary tube, a first limit ring and a second limit ring are sleeved on the outer sides of the opposite surfaces of the main tube and the auxiliary tube, and a pair of wearing ropes is fixedly connected to the outer side of the first limit ring and the outer side of the second limit ring respectively. The two wearing ropes located on the same side are fixedly connected with the same adhesive tape, a liquid outlet groove is formed in the bottom end of the main pipe, a suction groove is formed in the bottom end of the auxiliary pipe, and connectors are fixedly connected to the top end of the main pipe and the top end of the auxiliary pipe. The nasogastric lavage device is simple in operation and higher in efficiency, a good gastric lavage effect can be achieved, the limiting assembly convenient to wear is arranged, the nasogastric tube can be limited and fixed, the problem that the nasogastric tube gets loose and deviates is solved, and the gastric lavage effect is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of gastric lavage technology, and more specifically, to a double-lumen nasogastric tube for gastric lavage. Background Technology

[0002] In clinical practice, we frequently encounter patients with drug poisoning, which necessitates gastric lavage. Gastric lavage involves instilling a liquid of a specific composition into the stomach cavity, mixing it with the stomach contents, and then withdrawing it. This process is repeated multiple times to remove unabsorbed toxins or clean the stomach cavity. Clinically, it is used for preparation before gastric surgery and examinations. In emergencies, timely and rapid gastric lavage can save the lives of poisoned patients. The nasogastric tube is the main instrument used in gastric lavage. It is a flexible tube that can be inserted into the patient's stomach through the nose or mouth. It delivers the lavage fluid into the patient's stomach while simultaneously guiding the mixture out of the stomach, thus achieving the goal of gastric lavage.

[0003] Based on the above, the inventors discovered that existing nasogastric tubes require medical personnel to repeatedly flush the tube with a syringe during gastric lavage, which is not only cumbersome and inefficient but also yields poor lavage results. Furthermore, patients experience significant discomfort during the lavage process and are prone to large movements, leading to loosening and displacement of the nasogastric tube, ultimately resulting in lavage failure. Therefore, in view of this, the inventors researched and improved the existing structure to provide a double-lumen nasogastric tube for gastric lavage, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a double-lumen nasogastric tube for gastric lavage. This solution features a double-lumen nasogastric tube, which can continuously drip and extract gastric lavage fluid. It is simple to operate, more efficient, and can achieve good gastric lavage results. Furthermore, it is equipped with a convenient fitting limiting component to limit and fix the nasogastric tube, reducing the problem of loosening and displacement of the nasogastric tube, and further improving the gastric lavage effect.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] The utility model provides a kind of double-lumen nasogastric tube for gastric lavage, including main pipe and auxiliary pipe, opposite side of the main pipe and auxiliary pipe is equipped with first limit ring and second limit ring outside, the outside of the first limit ring and the outside of the second limit ring are fixedly connected with a pair of wearing rope, the bottom end of the main pipe is equipped with liquid outlet groove, the bottom end of the auxiliary pipe is equipped with suction groove, and the top end of the main pipe and the top end of the auxiliary pipe are fixedly connected with connector, and the inside of the first limit ring is fixedly connected with clamping block by both ends, the inside of the second limit ring is fixedly connected with clamping groove by both ends.

[0009] Further, the lower end of the main pipe and the lower end of the auxiliary pipe are fixedly connected, and the upper end of the main pipe and the upper end of the auxiliary pipe are arranged in a bifurcated manner, with the liquid outlet groove being located below the suction groove.

[0010] Further, the inside of the main pipe and the inside of the auxiliary pipe are both arranged in a penetrating manner, and the main pipe and the auxiliary pipe are both made of soft tube material.

[0011] Further, the inside of the first limit ring and the inside of the second limit ring are both equipped with a concave groove.

[0012] Further, the concave groove is arranged in a semicircular shape, and the concave groove is attached to the outer surface of the main pipe.

[0013] Further, the first limit ring and the second limit ring are arranged symmetrically, and the clamping block and the clamping groove are adapted to each other.

[0014] Further, the two wearing ropes on the same side are fixedly connected with the same adhesive tape.

[0015] Further, the two adhesive tapes are arranged in a bonded manner, and the adhesive tapes and the corresponding two wearing ropes are arranged in a Y shape.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) By inserting the main pipe and the auxiliary pipe into the patient's body from the patient's nasal cavity, the liquid outlet groove is located at the bottom of the stomach, and the suction groove is located below the cardia. The soft liquid outlet groove and suction groove can reduce the discomfort of the patient during insertion. During gastric lavage, the main pipe cooperates with the liquid outlet groove to make the gastric lavage fluid enter the bottom of the stomach and react with the mixture in the stomach. The auxiliary pipe cooperates with the suction groove to continuously suck out the mixture in the stomach. Compared with the prior art, the double-lumen nasogastric tube can continuously perform gastric lavage fluid infusion and extraction work, is simple to operate, has higher efficiency, and can achieve good gastric lavage effect.

[0019] (2) through the first limiting ring and the second limiting ring symmetrically clamped in the nasal cavity, make the limiting ring inner groove and the outer surface of the fixed connection position of the main pipe and the auxiliary pipe fit, through the clamping block cooperates with the clamping groove, thereby improve the clamping effect of the first limiting ring and the second limiting ring, then make two pairs of wearing ropes located outside the patient's ear, and then stick two adhesive tapes on the back of the patient, complete the wearing work of the limiting assembly, compared with the prior art, the limiting assembly is convenient to wear, can limit and fix the nasogastric tube, reduce the problem of loosening and deviation of the nasogastric tube, and further improve the effect of gastric lavage.

[0020] The above-mentioned content related to the description is only a summary of the technical scheme of the application, in order to enable those skilled in the art to more clearly understand the technical scheme of the application, and then can be implemented according to the content of the description and the drawings, and in order to let the above-mentioned purpose and other purposes, characteristics and advantages of the application can be more easily understood, the following is described in combination with the specific embodiment and the drawings of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings are only used to show the principles, implementation modes, applications, characteristics and effects of the specific embodiments and other related contents of the application, and cannot be considered as the limitation of the application.

[0022] In the drawings of the specification:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a structure split diagram of the main pipe and the auxiliary pipe of the utility model;

[0025] Figure 3 It is a schematic diagram of the position relationship between the wearing rope and the adhesive tape of the utility model;

[0026] Figure 4 It is a partial sectional view of the main pipe and the auxiliary pipe of the utility model;

[0027] Figure 5 It is a structure split diagram of the first limiting ring and the second limiting ring of the utility model.

[0028] The reference signs involved in the above-mentioned drawings are explained as follows:

[0029] 1, main pipe; 2, auxiliary pipe; 3, first limiting ring; 4, second limiting ring; 5, wearing rope; 6, adhesive tape; 7, liquid outlet groove; 8, suction groove; 9, connecting head; 10, inner groove; 11, clamping block; 12, clamping groove. DETAILED DESCRIPTION

[0030] To explain possible application scenarios, technical principles, specific implementation schemes, and the purposes and effects of the present application in detail, the following embodiments are described in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0031] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0032] Unless otherwise defined, the meaning of the technical terms used herein is the same as that generally understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0033] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, X and / or Y, which means that there are three cases: X exists, Y exists, and X and Y exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a kind of "or" logical relationship.

[0034] In the present application, such as "first" and "second", the terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0035] In the present application, without more limitation, the "include", "contain", "have" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent in such process, method or product.

[0036] In the present application, the expressions such as "greater than", "less than", "exceed" and the like are understood as not including the number itself; the expressions such as "above", "below", "within" and the like are understood as including the number itself. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is two or more (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly specified.

[0037] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and do not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0038] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", and the like should be understood broadly. For example, the "connection" can be fixed connection, or detachable connection, or integral setting; it can be mechanical connection, or electrical connection, or communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] The existing nasogastric tube needs to be repeatedly flushed by medical personnel with a syringe when performing gastric lavage, which is not only complicated and inefficient, but also has poor gastric lavage effect. At the same time, the patient will have a strong sense of discomfort during the gastric lavage process, and is easy to move greatly, thereby causing the loosening and deviation of the nasogastric tube, resulting in failure of gastric lavage.

[0040] The embodiment inserts the main pipe and the auxiliary pipe into the patient's body from the patient's nasal cavity, so that the liquid outlet groove is located at the bottom of the stomach and the suction groove is located below the cardia, and the soft liquid outlet groove and the suction groove can reduce the discomfort of the patient when the main pipe and the auxiliary pipe are inserted. During the gastric lavage process, the main pipe cooperates with the liquid outlet groove to make the gastric lavage liquid enter the bottom of the stomach and react with the mixture in the stomach, and the auxiliary pipe cooperates with the suction groove to continuously suck out the mixture in the stomach. Compared with the prior art, the double-lumen nasogastric tube can continuously perform gastric lavage liquid infusion and extraction work, is simple to operate, is more efficient, and can achieve good gastric lavage effect.

[0041] The first limiting ring and the second limiting ring are symmetrically clamped in the nasal cavity, so that the inner groove of the limiting ring is in close contact with the outer surface of the fixed connection position of the main pipe and the auxiliary pipe, and the clamping block cooperates with the clamping groove, thereby improving the clamping effect of the first limiting ring and the second limiting ring. Then, the two pairs of wearing ropes are located outside the patient's ears, and the two adhesive tapes are adhered behind the patient's head to complete the wearing work of the limiting assembly. Compared with the prior art, the limiting assembly is convenient to wear, can fix the nasogastric tube, reduces the problem of loosening and deviation of the nasogastric tube, and further improves the gastric lavage effect.

[0042] Embodiment:

[0043] Please refer to Figures 1-5 A double-lumen nasogastric tube for gastric lavage includes a main pipe 1 and an auxiliary pipe 2. The opposite sides of the main pipe 1 and the auxiliary pipe 2 are provided with a first limiting ring 3 and a second limiting ring 4. The outer side of the first limiting ring 3 and the outer side of the second limiting ring 4 are fixedly connected with a pair of wearing ropes 5. The bottom end of the main pipe 1 is provided with a liquid outlet groove 7, and the bottom end of the auxiliary pipe 2 is provided with a suction groove 8. The top end of the main pipe 1 and the top end of the auxiliary pipe 2 are fixedly connected with a connecting head 9. The inner side of the first limiting ring 3 is fixedly connected with a clamping block 11 at both ends, and the inner side of the second limiting ring 4 is fixedly connected with a clamping groove 12 at both ends. The connecting head 9 at the top end of the main pipe 1 is connected with a pipeline for conveying gastric lavage liquid, and the connecting head 9 at the top end of the auxiliary pipe 2 is connected with a negative pressure aspirator.

[0044] Please refer to Figure 2 The lower end of the main pipe 1 and the lower end of the auxiliary pipe 2 are fixedly connected, and the upper end of the main pipe 1 and the upper end of the auxiliary pipe 2 are provided in a forked manner. The liquid outlet groove 7 is located below the suction groove 8, so that the liquid outlet groove 7 is located at the bottom of the stomach and the suction groove 8 is located below the cardia. The soft liquid outlet groove 7 and the suction groove 8 can reduce the discomfort of the patient when the main pipe 1 and the auxiliary pipe 2 are inserted.

[0045] Please refer to Figure 3The interior of the main pipe 1 and the interior of the auxiliary pipe 2 are both through, and the main pipe 1 and the auxiliary pipe 2 are both soft pipe materials, in the process of gastric lavage, the infusion pipe is started, the liquid outlet groove 7 is matched with the main pipe 1, gastric lavage liquid can be continuously dropped, the gastric lavage liquid enters the bottom of the stomach and reacts with the mixture in the stomach, the auxiliary pipe 2 is matched with the suction groove 8, and continuous suction is carried out, so that the mixture in the stomach is sucked out, so that a good gastric lavage effect is achieved, and the continuous gastric lavage work is ensured.

[0046] Referring to Figure 5 The inner side of the first limiting ring 3 and the inner side of the second limiting ring 4 are both provided with an inner groove 10, so that the inner groove 10 on the inner side of the first limiting ring 3 and the inner groove 10 on the inner side of the second limiting ring 4 are respectively matched with the outer surfaces of the fixed connection positions of the main pipe 1 and the auxiliary pipe 2.

[0047] Referring to Figure 5 The inner groove 10 is in a semicircular shape, and the inner groove 10 is matched with the outer surface of the main pipe 1, the main pipe 1 and the auxiliary pipe 2 are inserted into the patient's body from the patient's nasal cavity, and then the first limiting ring 3 and the second limiting ring 4 are symmetrically clamped outside the nasal cavity.

[0048] Referring to Figure 5 The first limiting ring 3 and the second limiting ring 4 are symmetrically arranged, the clamping block 11 is matched with the clamping groove 12, and the stability of the two limiting rings is ensured by the clamping block 11 matched with the clamping groove 12 during the clamping of the first limiting ring 3 and the second limiting ring 4.

[0049] Referring to Figure 2 The same side of the two wearing ropes 5 is fixedly connected with the same adhesive tape 6, so that the two wearing ropes 5 on the same side are located on the outer side of the patient's ear, and the two adhesive tapes 6 are placed on the back of the patient's head, and the wearing rope 5 passes through the patient's ear and plays a limiting role.

[0050] Referring to Figure 4 The two adhesive tapes 6 are adhesively arranged, and the adhesive tape 6 and the corresponding two wearing ropes 5 are arranged in a Y shape, and finally the two adhesive tapes 6 are adhesively fixed on the back of the patient's head, so that the position of the wearing rope 5 is fixed, and the wearing work of the limiting assembly is completed by the adhesive tape 6 matched with the wearing rope 5.

[0051] In use: first, the main pipe 1 and the auxiliary pipe 2 are inserted into the patient's body from the patient's nasal cavity, so that the liquid outlet groove 7 is located at the bottom of the stomach and the suction groove 8 is located below the cardia, and the main pipe 1 and the auxiliary pipe 2 can be inserted through the soft liquid outlet groove 7 and the suction groove 8 to reduce the discomfort of the patient, then the first limiting ring 3 and the second limiting ring 4 are symmetrically clamped outside the nasal cavity, so that the inner grooves 10 on the inner sides of the first limiting ring 3 and the second limiting ring 4 are respectively fixedly connected to the outer surfaces of the two sides of the main pipe 1 and the auxiliary pipe 2, and the stability of the two limiting rings is ensured by the clamping blocks 11 cooperating with the clamping grooves 12 during the clamping process of the first limiting ring 3 and the second limiting ring 4, thereby improving the clamping effect of the first limiting ring 3 and the second limiting ring 4, then the two pairs of wearing ropes 5 are located outside the ears of the patient to play a limiting role, and the two adhesive tapes 6 are adhered and fixed at the back of the patient's head, so that the wearing work of the limiting assembly is completed by the adhesive tapes 6 cooperating with the wearing ropes 5, then the connecting heads 9 at the top ends of the main pipe 1 and the auxiliary pipe 2 are connected with the pipeline for conveying the gastric lavage liquid, and the connecting heads 9 at the top ends of the main pipe 1 and the auxiliary pipe 2 are connected with the negative pressure aspirator, in the gastric lavage process, the gastric lavage liquid is conveyed by the infusion tube, and the gastric lavage liquid can be continuously instilled by the main pipe 1 cooperating with the liquid outlet groove 7, so that the gastric lavage liquid enters the bottom of the stomach and reacts with the mixture in the stomach, and the auxiliary pipe 2 cooperates with the suction groove 8 to continuously suck the mixture in the stomach, so as to achieve a good gastric lavage effect and ensure the continuous gastric lavage work, and the nasal gastric tube is fixed and limited by the limiting assembly to reduce the problem of loosening of the nasal gastric tube and ensure the smooth progress of the gastric lavage work.

[0052] Those skilled in the art will appreciate that a combination of features of different embodiments means that such combinations are within the scope of the application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0053] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A double lumen nasogastric tube for gastric lavage, comprising a main tube (1) and a sub-tube (2), the opposite sides of the main tube (1) and the sub-tube (2) are sleeved with a first limiting ring (3) and a second limiting ring (4) from the outside, characterized in that: The outer side of the first limiting ring (3) is fixedly connected with a pair of wearing ropes (5), the bottom end of the main pipe (1) is provided with a liquid outlet groove (7), the bottom end of the auxiliary pipe (2) is provided with a suction groove (8), and the top end of the main pipe (1) and the top end of the auxiliary pipe (2) are fixedly connected with a connecting head (9), and the inner side of the first limiting ring (3) is fixedly connected with a clamping block (11) at both ends.

2. The double lumen nasogastric tube for gastric lavage according to claim 1, characterized in that: The lower end of the main pipe (1) is fixedly connected with the lower end of the auxiliary pipe (2), and the upper end of the main pipe (1) and the upper end of the auxiliary pipe (2) are arranged in a bifurcated manner, and the liquid outlet groove (7) is located below the suction groove (8).

3. The double lumen nasogastric tube for gastric lavage according to claim 1, characterized in that: The inside of the main pipe (1) and the inside of the auxiliary pipe (2) are both arranged in a penetrating manner, and the main pipe (1) and the auxiliary pipe (2) are both made of soft pipe material.

4. The double lumen nasogastric tube for gastric lavage according to claim 1, characterized in that: The inner side of the first limiting ring (3) is centrally provided with an inner recess (10), and the inner side of the second limiting ring (4) is centrally provided with an inner recess (10).

5. The double lumen nasogastric tube for gastric lavage according to claim 4, characterized in that: The inner recess (10) is arranged in a semicircular shape, and the inner recess (10) is attached to the outer surface of the main pipe (1).

6. The double lumen nasogastric tube for gastric lavage according to claim 1, characterized in that: The first limiting ring (3) and the second limiting ring (4) are symmetrically arranged, the clamping block (11) is matched with the clamping groove (12).

7. The double lumen nasogastric tube for gastric lavage according to claim 1, characterized in that: The two wearing ropes (5) located on the same side are fixedly connected with the same adhesive tape (6).

8. The double lumen nasogastric tube for gastric lavage according to claim 7, characterized in that: The two adhesive tapes (6) are arranged in a bonding manner, and the adhesive tape (6) and the corresponding two wearing ropes (5) are arranged in a Y shape.