Gastric tube assembly

Abstract

This application provides a gastric tube assembly, including a gastric tube, a weighted bladder, a positioning bladder, and a bladder tube. The weighted bladder is connected to the front end of the gastric tube and is used to store liquid. The positioning bladder is fixedly connected to the gastric tube, and the bladder tube communicates with the positioning bladder to deliver gas to it. The positioning bladder is used to position the gastric tube after inflation. When in use, the increased weight at the front end enhances the passage of the gastric tube. Furthermore, after use, the liquid in the weighted bladder can be drained before the gastric tube is withdrawn, preventing the weighted bladder from obstructing withdrawal and making withdrawal more flexible and convenient.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a gastric tube assembly. Background Technology

[0002] A nasogastric tube can help deliver necessary fluids and food to patients who cannot swallow in special circumstances. Nasogastric tubes are generally made of polyurethane or silicone; depending on the material, polyurethane and silicone tubes should be replaced monthly. Nasogastric tubes are generally divided into orogastric tubes and nasogastric tubes. Due to inherent structural defects, successful insertion of the tube is very difficult. A counterweight is usually added to the tip of the tube to increase its weight and facilitate advancement. However, in current technology, the counterweight is a rigid structure and fixedly connected to the nasogastric tube, increasing the volume of the tube tip and affecting its passage. Summary of the Invention

[0003] This application provides a gastric tube assembly to improve the above-mentioned problems.

[0004] The present invention is as follows:

[0005] To achieve the above objectives, this embodiment provides a gastric tube assembly, including:

[0006] The gastric tube, a counterweight bladder, a positioning airbag, and an airbag tube are provided. The counterweight bladder is connected to the front end of the gastric tube and is used to store liquid. The positioning airbag is fixedly connected to the gastric tube and communicates with the positioning airbag to deliver gas to the positioning airbag. The positioning airbag is used to position the gastric tube after inflation.

[0007] In one embodiment of the present invention, the counterweight bag includes a connector and a flexible outer wall, the flexible outer wall being sealed to the connector, and the inner surface of the flexible outer wall and the outer surface of the connector jointly defining a liquid storage cavity; the connector or the flexible outer wall is provided with an injection hole communicating with the liquid storage cavity; the connector is connected to the gastric tube.

[0008] In one embodiment of the present invention, the injection hole is provided on the connector, the injection hole has a first port and a second port in its extending direction, the flexible outer wall wraps the second port so as to communicate with the liquid storage cavity through the second port; the gastric tube is inserted into the first port and sealed to the connector, and the gastric tube blocks the second port.

[0009] In one embodiment of the present invention, the end of the connector where the second port is located is configured as an arc-shaped end face.

[0010] In one embodiment of the present invention, the gastric tube is screwed to the injection hole.

[0011] In one embodiment of the present invention, the gastric tube includes a first tube segment and a second tube segment connected together, the outer diameter of the first tube segment is smaller than the outer diameter of the second tube segment, the first tube segment is screwed to the injection hole, and the outer peripheral surface of the connector is smoothly connected to the outer peripheral surface of the second tube segment.

[0012] In one embodiment of the present invention, the gastric tube includes a guide section, an adaptation section and an operating section connected in sequence, wherein the hardness of the guide section and the operating section is greater than that of the adaptation section; the counterweight bag and the positioning air bag are both disposed outside the guide section.

[0013] In one embodiment of the present invention, the guiding segment, the adapting segment, and the operating segment are configured as an integrated structure.

[0014] In one embodiment of the present invention, the gas delivery tube and the gastric tube share the same tube wall.

[0015] In one embodiment of the present invention, the positioning airbag is provided with a puncture member. The positioning airbag has a folded state and an unfolded state that can be switched between each other. When it is in the folded state, the puncture member is wrapped by the positioning airbag. When it is in the unfolded state, the puncture member is exposed outside the positioning airbag. When the positioning airbag switches from the folded state to the unfolded state, the puncture member contacts the counterweight bag and can move in a radially outward direction of the gastric tube to puncture the counterweight bag.

[0016] The beneficial effects of this invention are:

[0017] In summary, this embodiment provides a gastric tube assembly with a weighted bladder at the distal end of the gastric tube. The weighted bladder is a flexible structure capable of holding a certain amount of liquid. Before insertion of the gastric tube into the patient, liquid is injected into the weighted bladder to increase the weight of the distal end of the gastric tube. Once the distal end of the gastric tube is inserted into the patient's body, its weight facilitates its movement to the designated position, improving the efficiency of insertion and reducing surgical risks. Furthermore, the liquid stored in the weighted bladder, along with the easily deformable liquid, facilitates passage through bends and narrow passages, resulting in better maneuverability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the gastric tube assembly provided in this application;

[0020] Figure 2 A partial structural schematic diagram of the gastric tube assembly provided in this application;

[0021] Figure 3 A schematic diagram of the positioning airbag and the counterweight bag provided in this application when the airbag is in a folded state;

[0022] Figure 4 This is a schematic diagram of the positioning airbag and the counterweight bag provided in this application when the airbag is in the deployed state.

[0023] icon:

[0024] 100-Gastric tube; 110-First tube segment; 120-Second tube segment; 200-Counterweight bladder; 210-Connector; 211-Injection port; 2111-First port; 2112-Second port; 220-Flexible outer wall; 300-Positioning bladder; 310-Folded slit; 400-Blank tube; 500-Piercing component. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the gastric tube assembly or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first," "second," "third," etc. are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In the prior art, gastric tubes are used frequently. For example, the technical solution described in the prior art patent CN202020212363.2 has a rigid counterweight at the end of the tube. Although this design can increase the weight of the tube tip (i.e. the distal end of the tube), the rigid counterweight increases the volume of the tube tip, resulting in poor passage and making it difficult to pass through narrow or curved areas, which indirectly increases the difficulty of the operation.

[0032] In view of this, the designers have provided a gastric tube assembly that, while increasing the weight of the gastric tube 100 tip, does not easily reduce the permeability of the gastric tube 100 tip, thus facilitating the insertion of the gastric tube 100 into the patient's body, improving surgical efficiency, and increasing the success rate of the surgery.

[0033] It should be noted that the front or distal end of the gastric tube 100 refers to the end of the gastric tube 100 that first enters the patient's body when it is inserted. Corresponding to the front or distal end is the rear or tail end of the gastric tube 100, which is closer to the operator.

[0034] Please combine Figure 1 In this embodiment, the gastric tube assembly includes a gastric tube 100, a counterweight bladder 200, a positioning airbag 300, and an airbag tube 400. The counterweight bladder 200 is connected to the front end of the gastric tube 100 and is used to store liquid. The positioning airbag 300 is fixedly connected to the gastric tube 100, and the airbag tube 400 is connected to the positioning airbag 300 and is used to deliver gas to the positioning airbag 300. The positioning airbag 300 is used to position the gastric tube 100 after inflation.

[0035] The gastric tube assembly provided in this embodiment can be used in the following ways, for example:

[0036] Before inserting the gastric tube 100, a certain amount of liquid is injected into the weight capsule 200, so that the liquid occupies 2 / 3 of the volume of the weight capsule 200. This increases the fluidity of the liquid and also increases the weight of the tip of the gastric tube 100. Then, the tip of the gastric tube 100 is inserted into the patient's body. During insertion, due to the weight of the tip, the gastric tube 100 is more easily guided to the intended position within the body, improving the efficiency of insertion and reducing surgical risks. Furthermore, the liquid stored in the weight capsule 200, along with the easily deformable liquid and weight capsule 200, facilitates passage through bends or narrow passages, resulting in better maneuverability.

[0037] Please combine Figure 2 In this embodiment, optionally, the gastric tube 100 includes a guide segment, an adaptation segment, and an operating segment connected in sequence. The rigidity of the guide segment and the operating segment is greater than that of the adaptation segment, meaning the guide segment has the lowest rigidity. The guide segment can be set as a flexible segment with the greatest deformation capacity, capable of adapting to the curvature and extension of tissue cavities within the patient's body. Furthermore, after the gastric tube 100 is inserted, it has minimal impact on tissue cavities, reducing patient discomfort. For example, in this embodiment, the length of the adaptation segment can be set to 25cm-35cm; specifically, the length of the adaptation segment can be 25cm, 30cm, or 35cm, etc.

[0038] It should be noted that the cross-sectional profile of the gastric tube 100 can be annular, with a smooth surface, low friction, and good passage.

[0039] Simultaneously, the end of the guiding section away from the adapting section is the front end of the gastric tube 100, and the end of the operating section away from the adapting section is the tail end of the gastric tube 100. The front end of the gastric tube 100 is closed. Further, the guiding section includes a coaxial first tube segment 110 and a second tube segment 120. The end of the second tube segment 120 away from the first tube segment 110 is connected to the adapting section, and the end of the first tube segment 110 away from the second tube segment 120 is the front end. The outer diameter of the first tube segment 110 is smaller than the outer diameter of the second tube segment 120, and an external thread is provided on the outer circumferential surface of the first tube segment 110.

[0040] It should be noted that the gastric tube 100 can be configured as an integral structure, that is, the guiding section, the adaptation section and the operating section are molded as one piece.

[0041] Please combine Figure 3 and Figure 4In this embodiment, optionally, the counterweight bladder 200 includes a connector 210 and a flexible outer wall 220. The connector 210 is a cylindrical tube, and its cavity is configured as an injection hole 211. Both ends of the injection hole 211 are open; for ease of description, the two ends of the injection hole 211 are designated as a first port 2111 and a second port 2112. The flexible outer wall 220 can be configured as an elastic wall. The outer edge of the flexible outer wall 220 is sealed to the outer peripheral surface of the connector 210, and the flexible outer wall 220 encloses the second port 2112. Thus, the inner surface of the flexible outer wall 220 and the outer surface of the connector 210 together define a liquid storage cavity. The second port 2112 communicates with the liquid storage cavity, allowing liquid to be injected from the first port 2111 and enter the liquid storage cavity from the second port 2112. Meanwhile, the wall of the injection hole 211 can be partially or entirely provided with internal threads. With this design, the first section 110 of the guiding section of the gastric tube 100 can be screwed and fixed to the internal threads on the wall of the injection hole 211 using external threads. Furthermore, a leak-proof membrane is covered on the outer surface of the internal or external threads. After the connector 210 is screwed to the gastric tube 100, the leak-proof membrane can be squeezed, thereby improving the sealing performance between the connector 210 and the gastric tube 100. The second port 2112 is sealed by the gastric tube 100. That is, when a set amount of liquid is stored in the storage cavity, the connector 210 is connected to the gastric tube 100, and the gastric tube 100 acts as a sealer for the injection hole 211. The liquid in the storage cavity will not leak from the injection hole 211. The overall structure is simple, easy to assemble, and reduces costs.

[0042] It should be understood that in other embodiments, the injection hole 211 may also be provided on the flexible outer wall 220.

[0043] The counterweight bladder 200 provided in this embodiment is threadedly connected to the gastric tube 100 via a connector 210, facilitating the assembly and disassembly of the counterweight bladder 200 and the gastric tube 100. Furthermore, when the gastric tube assembly is not in use, the counterweight bladder 200 and the gastric tube 100 can be installed separately for easy storage and handling. Additionally, the counterweight bladder 200 can be easily replaced if damaged, reducing costs. Simultaneously, the gastric tube 100 is used to seal the injection hole 211, eliminating the need for an additional sealing structure, simplifying the overall structure, facilitating assembly, and reducing costs.

[0044] Furthermore, the outer diameter of the connector 210 is the same as the outer diameter of the second pipe section 120. Thus, when the connector 210 is screwed into the first pipe section 110, the end face of the connector 210 can abut against the end face at the connection position of the first pipe section 110 and the second pipe section 120. The outer circumferential surface of the second pipe section 120 and the outer circumferential surface of the connector 210 are located in the same cylindrical surface, and the two are smoothly connected without forming a step structure. This reduces friction with the tissue wall during travel, reduces damage to the tissue wall, and ensures high safety.

[0045] It should be understood that because the flexible outer wall 220 wraps around the second port 2112, meaning that the tip of the gastric tube 100 is also wrapped by the flexible outer wall 220 when it travels, the flexible outer wall 220 is less likely to damage the tissue wall when it comes into contact with it, further improving the safety of the surgical procedure. When encountering narrow or curved sections, because both the flexible outer wall 220 and the fluid stored in the reservoir have good fluidity, the flexible outer wall 220 and the fluid can move backward, causing the second port 2112 of the connector 210 to push the flexible outer wall 220 forward, improving the passage.

[0046] In this embodiment, optionally, the positioning airbag 300 is fitted over the gastric tube 100, for example, it can be fitted over the second tube segment 120. The positioning airbag 300 can share an outer wall surface with the gastric tube 100, so that the gastric tube 100 and the positioning airbag 300 jointly define the air storage cavity, saving costs. It should be understood that after the positioning airbag 300 is inflated, its volume increases, and the air pressure makes its outer surface adhere to the tissue wall, which plays a role in stabilizing the gastric tube 100. The air pressure can be set as needed, and this embodiment does not impose a specific limitation. When the positioning airbag 300 is not inflated, the positioning airbag 300 is in a folded state, which is small in size and does not easily affect the passage. In other words, the positioning airbag 300 has a switchable folded state and an unfolded state, the folded state being the uninflated state and the unfolded state being the state filled with a set amount of gas.

[0047] Furthermore, a puncture element 500 is provided on the side of the positioning airbag 300 near the counterweight bladder 200. The puncture element 500 has a pointed tip facing the counterweight bladder 200. When the positioning airbag 300 is in a folded state, the puncture element 500 is held in the folded gap 310 formed after the positioning airbag 300 is folded, and the pointed tip always faces the counterweight bladder 200. When the positioning airbag 300 is inflated, the positioning airbag 300 gradually unfolds, and the puncture element 500 moves accordingly with the unfolding of the positioning airbag 300. That is, as the positioning airbag 300 unfolds, the puncture element 500 moves radially outward in the direction of the gastric tube 100 while approaching the counterweight bladder 200. The pointed tip of the puncture element 500 moves from the inside out relative to the counterweight bladder 200, puncturing the flexible outer wall 220 of the counterweight bladder 200, allowing the liquid inside the counterweight bladder 200 to drain out, facilitating the subsequent removal of the gastric tube 100 from the patient's body. It should be understood that the liquid inside the weight bag 200 can be the fluid needed by the patient and can be directly drained into the patient's body.

[0048] Optionally, the gastric tube can share the same wall as the gastric tube 100, thereby reducing costs, shrinking the overall size, and making it easier to insert into the patient's body.

[0049] In this embodiment, when the gastric tube assembly is in use, the increased weight at the front end enhances the passability of the gastric tube 100 during its movement. Furthermore, after the gastric tube 100 is used up, the liquid in the counterweight bladder 200 can be drained before the gastric tube 100 is withdrawn. The counterweight bladder 200 is less likely to obstruct the withdrawal of the gastric tube 100, making the withdrawal of the gastric tube 100 more flexible and convenient.

[0050] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gastric tube assembly, characterized by, include: The system includes a gastric tube, a counterweight bladder, a positioning airbag, and an airbag tube. The counterweight bladder is connected to the front end of the gastric tube and is used to store liquid. The positioning airbag is fixedly connected to the gastric tube, and the airbag tube communicates with the positioning airbag to deliver gas to the positioning airbag. The positioning airbag is used to position the gastric tube after inflation. The positioning airbag is equipped with a puncture component. The positioning airbag has a folded state and an unfolded state that can be switched between each other. When it is in the folded state, the puncture component is wrapped by the positioning airbag. When it is in the unfolded state, the puncture component is exposed outside the positioning airbag. When the positioning airbag switches from the folded state to the unfolded state, the puncture component contacts the counterweight bag and can move in a radially outward direction of the gastric tube to puncture the counterweight bag.

2. The gastric tube assembly according to claim 1, characterized in that: The counterweight bag includes a connector and a flexible outer wall. The flexible outer wall is sealed to the connector. The inner surface of the flexible outer wall and the outer surface of the connector together define a liquid storage cavity. An injection hole communicating with the liquid storage cavity is provided on the connector or the flexible outer wall. The connector is connected to the gastric tube.

3. The gastric tube assembly according to claim 2, characterized in that: The injection hole is located on the connector and has a first port and a second port in its extending direction. The flexible outer wall wraps around the second port to communicate with the storage cavity through the second port. The gastric tube is inserted into the first port and sealed to the connector, and the gastric tube blocks the second port.

4. The gastric tube assembly according to claim 3, characterized in that: The second port of the connector is located at one end with an arc-shaped end face.

5. The gastric tube assembly according to claim 3, characterized in that: The gastric tube is screwed to the injection port.

6. The gastric tube assembly according to claim 5, characterized in that: The gastric tube includes a first tube segment and a second tube segment connected together. The outer diameter of the first tube segment is smaller than the outer diameter of the second tube segment. The first tube segment is screwed to the injection hole. The outer peripheral surface of the connector is smoothly connected to the outer peripheral surface of the second tube segment.

7. The gastric tube assembly according to any one of claims 1-6, characterized in that: The gastric tube includes a guide section, an adaptation section, and an operating section connected in sequence. The rigidity of the guide section and the operating section is greater than that of the adaptation section. The counterweight bag and the positioning air bag are both located outside the guide section.

8. The gastric tube assembly according to claim 7, characterized in that: The guiding segment, the adaptation segment, and the operation segment are configured as an integrated structure.

9. The gastric tube assembly according to claim 1, characterized in that: The balloon tube and the gastric tube share the same tube wall.

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