Three-cavity two-bag stomach tube

Abstract

The invention provides a three-cavity two-balloon stomach tube which comprises a conveying pipeline, a stomach cavity tube is arranged at the head end of the conveying pipeline, a stomach balloon inflation tube and an esophageal balloon inflation tube are inserted into the two sides of the outer surface of one end of the stomach cavity tube in a penetrating mode, and a dimension line is arranged on the outer side face of the other end of the conveying pipeline; a limiting assembly is arranged at the tail end of the conveying pipeline, a first supporting assembly and a second supporting assembly are arranged at the head end of the conveying pipeline, through limiting of a limiting sleeve shell, the phenomenon that the Sengstaken-Blakemore tube is inserted too long by practice medical staff can be avoided, the operation correctness is improved, and the phenomenon that after the Sengstaken-Blakemore tube is inserted, the medical staff cannot work normally is avoided. And the phenomenon of continuous insertion occurs, so that the patient can be protected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device treatment, and particularly relates to a triple-lumen and double-balloon gastric tube. Background Art

[0002] The triple-lumen and double-balloon tube is a medical device used for treating rupture and bleeding of esophageal and gastric fundal varices. Its main functions are as follows: 1. Hemostasis by compression: By injecting an appropriate amount of gas into the gastric balloon and esophageal balloon to generate pressure, respectively compressing the varicose veins at the gastric fundus and the lower segment of the esophagus to achieve the purpose of hemostasis. 2. Temporary control of bleeding: To gain time for subsequent treatments, such as drug treatment, endoscopic treatment, or surgical treatment, etc. 3. Monitoring the condition: By observing the nature and amount of the drainage fluid in the drainage tube, it can be understood whether the bleeding is controlled and whether there are signs of rebleeding.

[0003] In the prior art, one-way valves are provided inside the ports of the gastric balloon and the esophageal balloon, but the pressure generated in the gas injected into the gastric balloon and the esophageal balloon cannot be directly reflected, which is not convenient for the operation of medical staff and wastes a lot of time. In particular, when the tail end of the triple-lumen and double-balloon tube is inserted into the patient's nostril, it is impossible to clearly see how many centimeters are inserted, and the insertion length of the triple-lumen and double-balloon tube cannot be limited, which increases the working intensity of intern medical staff in operating the triple-lumen and double-balloon tube, and thus reduces the functionality.

[0004] To solve the problems in the prior art, a triple-lumen and double-balloon gastric tube is provided. Summary of the Invention

[0005] In view of this, the present invention proposes a triple-lumen and double-balloon gastric tube to solve the existing problems.

[0006] The technical solution of the present invention is realized as follows: The present invention provides a triple-lumen and double-balloon gastric tube, including a delivery pipeline. The head end of the delivery pipeline is provided with a gastric cavity tube. On both sides of the outer surface of one end of the gastric cavity tube, a gastric balloon inflation tube and an esophageal balloon inflation tube are inserted. The outer side surface of the other end of the delivery pipeline is provided with a size line; the tail end of the delivery pipeline is provided with a limiting component, and the head end of the delivery pipeline is provided with a first support component and a second support component.

[0007] Further preferably, the limiting component includes a limiting sleeve shell sleeved on the outer side surface of the tail end of the delivery pipeline. On the upper parts of both inner side walls of the limiting sleeve shell, a first inclined sliding groove and a second inclined sliding groove are opened. A first sliding plate is slidably fitted inside the first inclined sliding groove. One side surface of the first sliding plate is fixedly connected with a pressing wheel. One side surface of the pressing wheel is fixedly connected with a second sliding plate which is slidably fitted inside the second inclined sliding groove. A sliding hole is opened in the lower part of one side surface of the limiting sleeve shell, and the tail end of the delivery pipeline is sleeved inside the sliding hole. A conical clamping shell is connected to the lower part of the other side surface of the limiting sleeve shell, and the tail end of the delivery pipeline is sleeved inside the conical clamping shell.

[0008] Further, preferably, one side of the upper part of the outer ring surface of the pressing wheel is fixedly connected with a pressing plate, and the lower part of the outer ring surface of the pressing wheel is provided with friction lines, and the lower part of the outer ring surface of the pressing wheel presses against the upper part of the outer side of the conveying pipeline.

[0009] Further, preferably, the first support assembly includes a support long pipe sleeved on the head end of the conveying pipeline. The outer surface of the middle part of the support long pipe is slidably fitted with a support long plate. Installation openings are provided inside both sides of the support long plate, and the lower end surface of the support long plate is fixedly connected with a rotating shell. The rotating shell is connected with a rotating block through a first fixing rod, and the lower end surface of the rotating block is fixedly connected with a support shell. Both sides inside the support shell are rotatably fitted with a first rotating wheel and a second rotating wheel through a second fixing rod and a third fixing rod. The outer ring surface of the first rotating wheel is annularly connected with first teeth at equal angles, and the lower part of the outer ring surface of the first rotating wheel is fixedly connected with a first T-shaped long plate. The outer ring surface of the second rotating wheel is annularly connected with second teeth at equal angles, and the second teeth are meshed and fitted with the first teeth. The lower part of the outer ring surface of the second rotating wheel is fixedly connected with a second T-shaped long plate.

[0010] Further, preferably, the second support assembly includes a support frame slidably fitted inside the installation opening. Two pressing members are pressed against the upper end surfaces of both sides of the support frame inside the installation opening. A pressing hole is meshed and fitted inside the pressing member. The upper end surfaces of one side along the length of the support frame are movably provided with a first supporting plate and a second supporting plate. One side of the upper end surface of the first supporting plate is fixedly connected with a first flow stop plate, and a first baffle and a first placing rack are connected to the other side of the upper end surface of the first supporting plate. A first conical groove is provided in the upper part of the first baffle, and a first pressure indicating valve is placed on the inner surface of the upper part of the first placing rack. One side of the upper end surface of the second supporting plate is fixedly connected with a second flow stop plate, and a second baffle and a second placing rack are connected to the other side of the upper end surface of the second supporting plate. A second conical groove is provided in the upper part of the second baffle, and a second pressure indicating valve is placed on the inner surface of the upper part of the second placing rack.

[0011] Further, preferably, a placing hole is provided inside the first flow stop plate, and a clamping groove is provided in the lower part inside the placing hole. The structures of the first flow stop plate and the second flow stop plate are the same.

[0012] Further, preferably, one end of the gastric balloon inflation tube penetrates inside the placing hole and the first conical groove, and one end of the gastric balloon inflation tube is connected to one end of the first pressure indicating valve. One end of the esophageal balloon inflation tube penetrates inside the placing hole and the second conical groove on the second flow stop plate, and one end of the esophageal balloon inflation tube is connected to one end of the second pressure indicating valve.

[0013] Further, preferably, positioning grooves are provided in the middle parts of the first supporting plate or the second supporting plate, and positioning rods are provided at the lower ends of the first T-shaped long plate or the second T-shaped long plate, and the positioning grooves are anastomotically connected with the positioning rods.

[0014] The present invention has the following beneficial effects compared with the prior art: (1) For the triple-lumen and double-balloon gastric tube disclosed by the present invention, the pressing wheel gradually presses against the outer side of the conveying pipeline along the first inclined chute and the second inclined chute. Among them, the friction lines touch the outer side of the conveying pipeline, which can effectively make the conveying pipeline fixed in a determined position due to the resistance of friction and the pressing of the pressing wheel, and prevent the limiting sleeve from sliding up or down randomly; (2) Through the limitation of the limiting sleeve, it can prevent intern medical staff from inserting the triple-lumen and double-balloon tube too long. Moreover, it can also prevent medical staff from continuing to insert the tube after it has been inserted, which can provide protection for patients; (3) Through the support of the support frame, the second T-shaped long plate and the first T-shaped long plate, there is no need for medical staff to hold it all the time, which reduces the fatigue of medical staff. Moreover, it can be easily operated by a single medical staff, which can improve the practicability.

[0015] (4) After injecting gas multiple times, the pressure generated makes the first pressure indicating valve display, which can accurately inform medical staff, facilitating clinical emergency, reducing work intensity and saving a great deal of time.

[0016] (5) Medical staff can directly press down the gastric balloon inflation tube located in the placement hole directly into the card slot, thereby clamping one end of the gastric balloon inflation tube, which is beneficial to controlling the non-return of the injected gas and greatly improving the clinical use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic diagram of the triple-lumen and double-balloon gastric tube disclosed by the present invention; Figure 2 is a schematic diagram of the structure of the first inclined chute of the triple-lumen and double-balloon gastric tube disclosed by the present invention; Figure 3 is a schematic diagram of the structure of the pressing wheel of the triple-lumen and double-balloon gastric tube disclosed by the present invention; Figure 4 is a schematic diagram of the structure of the support long plate of the triple-lumen and double-balloon gastric tube disclosed by the present invention; Figure 5 is a schematic diagram of the structure of the second T-shaped long plate of the triple-lumen and double-balloon gastric tube disclosed by the present invention; Figure 6 It is a schematic structural diagram of the first supporting plate of the three-chamber and two-balloon gastric tube disclosed by the present invention; Figure 7 It is a schematic diagram of the second supporting plate of the three-chamber and two-balloon gastric tube disclosed by the present invention; Figure 8 It is a schematic diagram of the rotating block of the three-chamber and two-balloon gastric tube disclosed by the present invention.

[0019] Reference signs in the drawings: 1 - Delivery pipeline, 11 - Gastric cavity tube, 12 - Gastric balloon inflation tube, 13 - Esophageal balloon inflation tube, 14 - Dimension line, 2 - Limit assembly, 21 - Limit sleeve, 211 - Sliding hole, 22 - First inclined sliding groove, 23 - Second inclined sliding groove, 24 - First sliding plate, 25 - Pressure wheel, 251 - Pressing plate, 252 - Friction pattern, 26 - Second sliding plate, 27 - Conical clamping shell, 3 - First support assembly, 31 - Support long tube, 32 - Support long plate, 33 - Installation opening, 34 - Rotating shell, 35 - Rotating block, 36 - Support shell, 37 - First rotating wheel, 371 - First tooth, 372 - First T-shaped long plate, 38 - Second rotating wheel, 381 - Second tooth, 382 - Second T-shaped long plate, 3821 - Positioning plate, 4 - Second support assembly, 41 - Support frame, 42 - Pressing member, 43 - Pressing hole, 44 - First supporting plate, 441 - First flow-stop plate, 442 - Placing hole, 443 - Card slot, 444 - First baffle, 445 - First conical groove, 446 - First placing rack, 45 - First pressure indicating valve, 46 - Second supporting plate, 461 - Second flow-stop plate, 462 - Second baffle, 463 - Second conical groove, 464 - Second placing rack, 465 - Positioning groove, 47 - Second pressure indicating valve. Detailed implementation manners

[0020] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figure 1 shown, in combination with Figures 2 - 8 , an embodiment of the present invention discloses a three-chamber and two-balloon gastric tube, including a delivery pipeline 1. A gastric cavity tube 11 is provided at the head end of the delivery pipeline 1. Both sides of the outer surface of one end of the gastric cavity tube 11 are penetrated with a gastric balloon inflation tube 12 and an esophageal balloon inflation tube 13. A dimension line 14 is provided on the outer side surface of the other end of the delivery pipeline 11; a limit assembly 2 is provided at the tail end of the delivery pipeline 11, and a first support assembly 3 and a second support assembly 4 are provided at the head end of the delivery pipeline 11.

[0022] In this embodiment, the limiting component 2 includes a limiting sleeve 21 sleeved on the outer side of the tail end of the conveying pipeline 1. On the upper parts of the two inner side walls of the limiting sleeve 21, a first inclined sliding groove 22 and a second inclined sliding groove 23 are provided. A first sliding plate 24 is slidably fitted inside the first inclined sliding groove 22. One side surface of the first sliding plate 24 is fixedly connected with a pressing wheel 25. One side surface of the pressing wheel 25 is fixedly connected with a second sliding plate 24, and the other side is slidably fitted inside the second inclined sliding groove 26. A sliding hole 211 is provided in the lower part of one side surface of the limiting sleeve 21, and the tail end of the conveying pipeline 1 is sleeved inside the sliding hole 211. A conical clamping shell 27 is connected to the lower part of the other side surface of the limiting sleeve 21, and the tail end of the conveying pipeline 1 is sleeved inside the conical clamping shell 27. Press on the inner surface of the pressing plate 251, and then apply a force towards the inner surface of the pressing plate 251, so that the pressing wheel 25 drives the first sliding plate 24 and the second sliding plate 26 to slide upwards inside the first inclined sliding groove 22 and the second inclined sliding groove 23. The pressing wheel 25 gradually presses downwards against the outer side of the conveying pipeline 1 along the first inclined sliding groove 22 and the second inclined sliding groove 23. Among them, the friction lines 252 contact the outer side of the conveying pipeline 1. After the limiting sleeve 21 is fixed, the medical staff operates to insert the tail end of the conveying pipeline 1 into the patient's nasal cavity. After the conveying pipeline 1 reaches from the nasal cavity to the pharynx and then to the stomach, at this time, the conical clamping shell 27 on the limiting sleeve 1 has entered the patient's nasal cavity. Furthermore, the limiting effect is achieved, which is beneficial to avoiding the phenomenon that the intern medical staff inserts the three - lumen and two - balloon tube too long. Moreover, it also avoids the phenomenon that the medical staff continues to insert the three - lumen and two - balloon tube after it has been inserted, which can provide protection for the patient.

[0023] In this embodiment, a pressing plate 251 is fixedly connected to one side of the upper part of the outer ring surface of the pressing wheel 25, and friction lines 252 are provided on the lower part of the outer ring surface of the pressing wheel 25, and the lower part of the outer ring surface of the pressing wheel 25 presses against the upper part of the outer side of the conveying pipeline 1. It can effectively make the conveying pipeline 1 fixed in a determined position due to the frictional resistance and the pressing of the pressing wheel 25, avoiding the random upward or downward sliding of the limiting sleeve 21, and can assist the medical staff in the insertion work.

[0024] In this embodiment, the first support assembly 3 includes a support long tube 31 sleeved on the head end of the conveying pipeline 1. A support long plate 32 is slidably fitted on the outer surface of the middle part of the support long tube 31. Installation openings 33 are formed in both inner sides of the support long plate 32, and a rotating shell 34 is fixedly connected to the lower end surface of the support long plate 32. The rotating shell 34 is connected to a rotating block 35 through a first fixing rod, and a support shell 36 is fixedly connected to the lower end surface of the rotating block 35. A first rotating wheel 37 and a second rotating wheel 38 are rotatably fitted on both inner sides of the support shell 36 through a second fixing rod and a third fixing rod. First teeth 371 are annularly connected to the outer ring surface of the first rotating wheel 37 at equal angles, and a first T-shaped long plate 372 is fixedly connected to the lower part of the outer ring surface of the first rotating wheel 37. Second teeth 381 are annularly connected to the outer ring surface of the second rotating wheel 38 at equal angles, and the second teeth 381 are meshed with the first teeth 371. A second T-shaped long plate 382 is fixedly connected to the lower part of the outer ring surface of the second rotating wheel 38. After a medical staff holds the first T-shaped long plate 372 and the second T-shaped long plate 382, an external force can be applied. The rotating block 35 on the support shell 36 rotates under the force on the outside of the first fixing rod until it rotates to 90 degrees. Then, the medical staff holds the first T-shaped long plate 372 and applies an external force to make the first rotating wheel 37 rotate on the outside of the second fixing rod. At the same time, the first teeth 271 are meshed with the second teeth 381, so that the second rotating wheel 38 drives the second T-shaped long plate 382 to expand outward simultaneously until the second T-shaped long plate 382 and the first T-shaped long plate 372 expand outward to 60 degrees, which is beneficial to eliminating the need for the medical staff to support all the time and reducing the fatigue of the medical staff.

[0025] In this embodiment, the second support assembly 4 includes a support frame 41 that is slidably fitted inside an installation opening 33. Two pressing members 42 are pressed against the upper end surfaces on both sides of the support frame 41 located inside the installation opening 33. A pressing hole 43 is engaged inside the pressing member 42. A first support plate 44 and a second support plate 46 are movably arranged on the upper end surface along one side of the length of the support frame 41. A first flow stop plate 441 is fixedly connected to one side of the upper end surface of the first support plate 44. A first baffle 444 and a first placement rack 446 are connected to the other side of the upper end surface of the first support plate 44. A first conical groove 445 is formed in the upper part of the first baffle 444. A first pressure indicating valve 45 is placed on the inner surface of the upper part of the first placement rack 446. A second flow stop plate 461 is fixedly connected to one side of the upper end surface of the second support plate 46. A second baffle 462 and a second placement rack 464 are connected to the other side of the upper end surface of the second support plate 46. A second conical groove 463 is formed in the upper part of the second baffle 462. A second pressure indicating valve 47 is placed on the inner surface of the upper part of the second placement rack 446. Insert both sides of the support frame 41 into the two installation openings 33. As long as it can be ensured that the first pressure indicating valve 45 and the second pressure indicating valve 47 are placed on the inner surfaces of the first placement rack 446 and the second placement rack 446, the insertion of the support frame 41 into the installation opening 33 can be stopped. Then, rotate the two pressing members 42 to rotate in the two pressing holes 43, so that the bottom surfaces of the two pressing members 42 gradually press against the upper end surface of the support frame 41 inserted inside the installation opening 33. Furthermore, the support frame 41 is fixed. After fixing the support frame, insert the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13 into the placement holes 442 on the first flow stop plate 441 and the second flow stop plate 461. Among them, one ends of the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13 are sequentially inserted into the inside of the first conical groove 445 and the second conical groove 463. Then, one ends of the first pressure indicating valve 45 and the second pressure indicating valve 47 are connected to the ports of the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13. Thus, the installation of the second support assembly 4 is completed, which is beneficial for even medical staff who operate alone to easily operate and can improve the practicability. In order to prevent the first pressure indicating valve 45 from falling outwards or disconnecting the connection of the first pressure indicating valve 45 after being pulled, the first conical groove 445 is provided. If the first pressure indicating valve 45 is pulled to slide to one side, then one end of the first pressure indicating valve 45 enters the inside of the first conical groove 445. By means of the first conical groove 445, the moving distance of the first pressure indicating valve 45 is increased, and the problem of falling outwards or disconnecting the connection of the first pressure indicating valve 45 can be avoided.

[0026] In this embodiment, a placement hole 442 is formed inside the first flow-stop plate 441, and a clamping groove 443 is formed in the lower part of the placement hole 442. The first flow-stop plate 441 and the second flow-stop plate 461 have the same structure. Medical staff can directly press down the gastric balloon inflation tube 12 located in the placement hole 442 until it reaches the clamping groove 443, thereby clamping one end of the gastric balloon inflation tube 12, which is beneficial to controlling the non-backflow of the injected gas and greatly improving the use efficiency in this clinical embodiment.

[0027] One end of the gastric balloon inflation tube 12 is inserted into the placement hole 442 and the first conical groove 445, and one end of the gastric balloon inflation tube 12 is connected to one end of the first pressure indicating valve 45. One end of the esophageal balloon inflation tube 13 is inserted into the placement hole and the second conical groove 463 on the second flow-stop plate 461, and one end of the esophageal balloon inflation tube 13 is connected to one end of the second pressure indicating valve 47. The pressure generated by multiple injections of gas causes the first pressure indicating valve 45 to display, which can accurately inform medical staff, facilitating clinical emergency treatment, reducing work intensity, and saving a great deal of time.

[0028] Furthermore, preferably, a positioning groove 465 is formed in the middle of the first supporting plate 44 or the second supporting plate 46, and a positioning rod 3821 is provided at the lower end of the first T-shaped long plate 372 or the second T-shaped long plate 382. The positioning groove 465 is in mating connection with the positioning rod 3821. The width of the positioning groove 465 is slightly larger than that of the positioning rod 3821. The positioning rod 3821 not only plays a supporting role, but also, after the delivery pipe 1 of the triple-lumen and double-balloon gastric tube is inserted into the patient's stomach, at this time, the part located outside the patient's nasal cavity needs to be tilted 45 degrees, and then a rope is tied to the end of the gastric tube, and a heavy object is used to create a dragging effect on the outer end of the gastric tube (this is a conventional medical method). One end of the rope is easily slipped when tied to the end of the existing gastric tube, while in the present invention, the rope can be tied to the first T-shaped long plate 372 or the second T-shaped long plate 382, so that the positioning rod 3821 can also play an anti-slip effect. The two T-shaped long plates can be flipped around the position of the rotating block 35. At the same time, the first supporting plate 44 and the second supporting plate 46 rotate towards the middle, and the positioning rod 3821 at the lower end of the T-shaped long plate can be inserted into the positioning groove 465. Furthermore, in the state of lifting the gastric tube at 45 degrees or in the storage state, the positions of the first supporting plate 44 and the second supporting plate 46 can be closer, and thus, the overall structure can be more compact, avoiding occupying too much space.

[0029] The working principle of the present invention is: In the present invention, first, determine the insertion dimension. Then, find the determined dimension from the dimension line 14, and then perform the operation of pushing the limit sleeve 21 upward or downward. After the limit sleeve 21 is pushed to the determined position, first press the inner surface of the pressing plate 251 with the thumb, and then apply a force in the direction of the inner surface of the pressing plate 251, so that the pressing wheel 25 drives the first sliding plate 24 and the second sliding plate 26 to slide upward inside the first inclined chute 22 and the second inclined chute 23. The pressing wheel 25 gradually presses against the outer side of the conveying pipeline 1 along the first inclined chute 22 and the second inclined chute 23. Among them, the friction pattern 252 abuts against the outer side of the conveying pipeline 1. Thus, the limit sleeve 21 is fixed on the outer side of the conveying pipeline 1. After the limit sleeve 21 is fixed (the degree of the pressing wheel 25 pressing downward only needs to ensure that the limit sleeve 1 is fixed in the determined position to avoid greatly affecting the gas conveying effect), the medical staff operates to insert the tail end of the conveying pipeline 1 into the patient's nasal cavity. After the conveying pipeline 1 reaches the stomach through the nasal cavity and the throat, at this time, the conical shell 27 on the limit sleeve 1 has entered the patient's nasal cavity. Furthermore, the limiting effect is achieved.

[0030] After the tail end of the conveying pipeline 1 is inserted, at this time, when the medical staff holds the first T-shaped long plate 372 and the second T-shaped long plate 382, an external force can be applied. The rotating block 35 on the support shell 36 is stressed and rotates on the outer side of the first fixing rod until it rotates to 90 degrees (as Figure 6 shown). The medical staff holds the first T-shaped long plate 372 and applies an external force to make the first rotating wheel 37 rotate on the outer side of the second fixing rod. At the same time, the first tooth 271 meshes with the second tooth 381, so that the second rotating wheel 38 drives the second T-shaped long plate 382 to expand outward simultaneously until the second T-shaped long plate 382 and the first T-shaped long plate 372 expand outward to 60 degrees. Then stop expanding outward. Under the support of the second T-shaped long plate 382 and the first T-shaped long plate 372, the support frame 41 can be installed. Insert both sides of the support frame 41 into the two installation ports 33. As long as it can be ensured that the first pressure indicating valve 45 and the second pressure indicating valve 47 are placed on the inner surfaces of the first placement frame 446 and the second placement frame 446, the insertion of the support frame 41 into the installation port 33 can be stopped. Then, twist the two pressing members 42 to press against the upper end surface of the support frame 41. Furthermore, the support frame 41 is fixed. After the support frame is fixed, insert the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13 into the placement holes 442 on the first stop plate 441 and the second stop plate 461. Among them, one ends of the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13 are sequentially inserted into the first conical groove 445 and the second conical groove 463. Then, one ends of the first pressure indicating valve 45 and the second pressure indicating valve 47 are connected to the ports of the gastric balloon inflation tube 12 and the esophageal balloon inflation tube 13. Thus, the installation of the second support assembly 4 is completed.

[0031] After the installation of the second support assembly 4, gas is delivered into the gastric balloon inflation tube 12, and its syringe delivery port is inserted into the port of the first pressure indicating valve 45. Then, gas is injected multiple times, and the pressure generated causes the first pressure indicating valve 45 to display, which can accurately inform medical staff. After injecting gas, one end of the gastric balloon inflation tube 12 needs to be pressed. At this time, medical staff can directly press down the gastric balloon inflation tube 12 located in the placement hole 442 until it reaches the card slot 443, thereby completing the clamping of one end of the gastric balloon inflation tube 12.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A three-chamber and two-balloon gastric tube, comprising a delivery conduit (1), characterized in that: The head end of the conveying pipeline (1) is provided with a gastric cavity tube (11). On both sides of the outer surface of one end of the gastric cavity tube (11), a gastric balloon inflation tube (12) and an esophageal balloon inflation tube (13) are inserted. On the outer side surface of the other end of the conveying pipeline (11), a dimension line (14) is provided; the tail end of the conveying pipeline (11) is provided with a limiting component (2), and the head end of the conveying pipeline (11) is provided with a first support component (3) and a second support component (4).

2. The triple-lumen and double-balloon gastric tube according to claim 1, characterized in that: The limiting component (2) includes a limiting sleeve (21) sleeved on the outer side surface of the tail end of the conveying pipeline (1). On the upper parts of the inner side walls on both sides of the limiting sleeve (21), a first inclined sliding groove (22) and a second inclined sliding groove (23) are opened. A first sliding plate (24) is slidably fitted in the first inclined sliding groove (22). One side surface of the first sliding plate (24) is fixedly connected with a pressing wheel (25). One side surface of the pressing wheel (25) is fixedly connected with a second sliding plate (24) which is slidably fitted in the second inclined sliding groove (26). On the lower part of one side surface of the limiting sleeve (21), a sliding hole (211) is opened. The tail end of the conveying pipeline (1) is sleeved in the sliding hole (211). On the lower part of the other side surface of the limiting sleeve (21), a conical clamping shell (27) is connected. The tail end of the conveying pipeline (1) is sleeved in the conical clamping shell (27).

3. The triple-lumen and double-balloon gastric tube according to claim 2, characterized in that: On one side of the upper part of the outer ring surface of the pressing wheel (25), a pressing plate (251) is fixedly connected. On the lower part of the outer ring surface of the pressing wheel (25), a friction pattern (252) is opened, and the lower part of the outer ring surface of the pressing wheel (25) presses against the upper part of the outside of the conveying pipeline (1).

4. The triple-lumen and double-balloon gastric tube according to claim 1, wherein: The first support component (3) includes a support long tube (31) sleeved on the head end of the conveying pipeline (1). A support long plate (32) is slidably fitted on the outer surface of the middle part of the support long tube (31). Installation openings (33) are opened in both sides of the support long plate (32). The lower end surface of the support long plate (32) is fixedly connected with a rotating shell (34). The rotating shell (34) is connected with a rotating block (35) through a first fixing rod. The lower end surface of the rotating block (35) is fixedly connected with a support shell (36). On both sides inside the support shell (36), a first rotating wheel (37) and a second rotating wheel (38) are rotatably fitted through a second fixing rod and a third fixing rod. On the outer ring surface of the first rotating wheel (37), first teeth (371) are annularly connected at equal angles. On the lower part of the outer ring surface of the first rotating wheel (37), a first T-shaped long plate (372) is fixedly connected. On the outer ring surface of the second rotating wheel (38), second teeth (381) are annularly connected at equal angles. The second teeth (381) are meshed with the first teeth (371). On the lower part of the outer ring surface of the second rotating wheel (38), a second T-shaped long plate (382) is fixedly connected.

5. The triple-lumen and double-balloon gastric tube according to claim 4, wherein: The second support assembly (4) includes a support frame (41) that is slidably fitted inside the installation opening (33). On the upper end faces of both sides of the support frame (41) located inside the installation opening (33), two pressing members (42) are pressed. Inside the pressing member (42), a pressing hole (43) is engaged. On the upper end face along one side of the length of the support frame (41), a first support plate (44) and a second support plate (46) are movably arranged. On one side of the upper end face of the first support plate (44), a first flow-stop plate (441) is fixedly connected. On the other side of the upper end face of the first support plate (44), a first baffle (444) and a first placement rack (446) are connected. In the upper part of the first baffle (444), a first tapered groove (445) is formed. On the inner surface of the upper part of the first placement rack (446), a first pressure indicating valve (45) is placed. On one side of the upper end face of the second support plate (46), a second flow-stop plate (461) is fixedly connected. On the other side of the upper end face of the second support plate (46), a second baffle (462) and a second placement rack (464) are connected. In the upper part of the second baffle (462), a second tapered groove (463) is formed. On the inner surface of the upper part of the second placement rack (446), a second pressure indicating valve (47) is placed.

6. The triple-lumen and double-balloon gastric tube according to claim 5, characterized in that: A placement hole (442) is formed inside the first flow-stop plate (441). A clamping groove (443) is formed in the lower part inside the placement hole (442). The first flow-stop plate (441) and the second flow-stop plate (461) have the same structure.

7. The triple-lumen and double-balloon gastric tube according to claim 6, wherein: One end of the gastric balloon inflation tube (12) penetrates inside the placement hole (442) and the first tapered groove (445), and one end of the gastric balloon inflation tube (12) is connected to one end of the first pressure indicating valve (45). One end of the esophageal balloon inflation tube (13) penetrates inside the placement hole and the second tapered groove (463) on the second flow-stop plate (461), and one end of the esophageal balloon inflation tube (13) is connected to one end of the second pressure indicating valve (47).

8. The triple-lumen and double-balloon gastric tube according to claim 5, wherein: A positioning groove (465) is formed in the middle of the first support plate (44) or the second support plate (46). A positioning rod (3821) is provided at the lower end of the first T-shaped long plate (372) or the second T-shaped long plate (382). The positioning groove (465) is in a mating connection with the positioning rod (3821).

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