Stomach tube for monitoring residual gastric fluid

Abstract

The utility model discloses a stomach tube for monitoring residual gastric fluid, which is characterized in that a connector is arranged at the near end of a tube body, an infusion tube and a monitoring tube are arranged on the connector, a first connecting piece capable of being connected with a nasal feeding fluid bag is arranged on the infusion tube, a second connecting piece is arranged on the monitoring tube, and a first branch tube and a second branch tube are arranged on the second connecting piece. A suction assembly is arranged at the end of the first branch pipe, and a drainage connector is arranged at the end of the second branch pipe. According to the stomach tube for monitoring the residual gastric fluid, when the residual gastric fluid of a patient needs to be monitored, suction operation is carried out through the suction assembly, the first branch tube and the monitoring tube, the sucked residual gastric fluid can be conveyed into a nasal feeding fluid bag or a bag body through the second branch tube, in the whole process, the residual gastric fluid cannot be exposed, and therefore the residual gastric fluid can be monitored. Therefore, no bad smell is emitted, and no pollution is caused.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a gastric tube for monitoring gastric residual fluid. Background Technology

[0002] In clinical practice, gastric residual volume (GRV) monitoring is often used as the most common method for assessing gastric motility disorders and enteral nutrition tolerance. Initially, GRV monitoring aimed to ensure the safe implementation of enteral nutrition and prevent aspiration pneumonia caused by excessive GRV. However, the resulting reduction in enteral nutrition intake and insufficient energy supply has increased patient mortality and the incidence of other complications, making GRV monitoring one of the most challenging aspects of implementing enteral nutrition in critically ill patients. Assessing the safety of enteral nutrition by monitoring GRV has become routine practice in many intensive care units.

[0003] Currently available methods for monitoring gastric residual volume (GRV) include: aspiration method, acetaminophen absorption test, refractive index method, and gastric impedance monitoring. The syringe aspiration method is the most commonly used clinical method. However, the aspirated gastric residual fluid is routinely injected into a disposable cup to observe the volume before being reinfused into the nasogastric tube. This method has two drawbacks: firstly, the unpleasant odor of the aspirated gastric residual fluid can cause an unpleasant experience for patients, their families, and staff; secondly, it is easily contaminated by the environment, contributing to diarrhea in patients. Utility Model Content

[0004] The purpose of this invention is to provide a gastric tube for monitoring gastric residual fluid, thereby addressing the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gastric tube for monitoring gastric residual fluid includes a tube body, a connector at the proximal end of the tube body, an infusion tube and a monitoring tube at the connector, both of which are connected to the tube body. The infusion tube has a first connector that can connect to a nasogastric feeding bag, and the first connector has a first control valve. The monitoring tube has a second connector, and the second connector has a second control valve. The second connector has a first branch tube and a second branch tube. The end of the first branch tube has a suction assembly, and the end of the second branch tube has a drainage connector, and the drainage connector has a third control valve.

[0007] The gastric tube for monitoring gastric residual fluid described above has a liquid channel inside the second connector for liquid to pass through. The second connector has a first connection port and a second connection port. The first branch tube and the second branch tube are respectively connected to the first connection port and the second connection port. Both the first connection port and the second connection port are connected to the liquid channel.

[0008] In the gastric tube described above for monitoring gastric residual fluid, the second control valve is located at one end of the liquid channel near the monitoring tube. When the second control valve is in the closed or open state, both the first connection port and the second connection port are connected.

[0009] The gastric tube described above for monitoring gastric residual fluid includes an aspiration assembly comprising an aspiration cylinder connected to the first branch tube and an aspiration piston disposed within the aspiration cylinder. The aspiration cylinder is provided with graduation markings and a transparent observation section.

[0010] The gastric tube described above for monitoring gastric residual fluid has a sealing plate at the end of the suction tube away from the first branch tube, and the sealing plate has a circular through hole.

[0011] The gastric tube described above for monitoring gastric residual fluid includes a piston piston comprising a piston head and a piston rod, with one end of the piston rod away from the piston head extending from the circular through-hole and connected to an operating head.

[0012] The gastric tube described above for monitoring gastric residual fluid has a cylindrical connector at the end of the piston rod, which is connected to the piston head, and a locking part is provided on the cylindrical connector.

[0013] The gastric tube for monitoring gastric residual fluid described above has an annular opening at one end of the sealing plate near the suction cylinder. The annular opening is coaxially arranged and connected to the circular through hole. A locking member corresponding to the locking part is provided on the side wall of the annular opening.

[0014] In the above technical solution, the gastric tube for monitoring gastric residual fluid provided in this embodiment of the utility model has a connector at the proximal end of the tube body, and an infusion tube and a monitoring tube are provided on the connector. The infusion tube is provided with a first connector that can be connected to a nasogastric feeding bag, and the monitoring tube is provided with a second connector. The second connector is provided with a first branch tube and a second branch tube. The end of the first branch tube is provided with a suction component, and the end of the second branch tube is provided with a drainage connector. During use, connecting the nasogastric feeding bag to the infusion tube can provide nutrition to patients who cannot eat orally. When it is necessary to monitor the patient's gastric residual fluid, a suction operation is performed through the suction component, the first branch tube, and the monitoring tube. The suctioned gastric residual fluid can be transported to the nasogastric feeding bag or the bag body through the second branch tube. During the whole process, the gastric residual fluid will not be exposed, so it will not emit unpleasant odors or be contaminated. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the structure of a gastric tube for monitoring gastric residual fluid provided in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the suction assembly provided in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the locking component provided in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Tube body; 11. Connector; 2. Infusion tube; 21. First connector; 22. First control valve; 3. Monitoring tube; 31. Second connector; 32. Second control valve; 33. First branch tube; 34. Second branch tube; 35. Drainage connector; 36. Third control valve; 4. Suction assembly; 41. Suction cylinder; 410. Scale markings; 42. Suction piston; 420. Piston head; 421. Piston rod; 422. Cylindrical connector; 423. Locking part; 424. Annular locking groove; 43. Sealing plate; 430. Circular through hole; 431. Annular opening; 432. Locking channel; 44. Locking component; 440. Circular moving plate; 441. Spring component; 442. Locking post. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-3As shown, this utility model embodiment provides a gastric tube for monitoring gastric residual fluid, including a tube body 1. A connector 11 is provided at the proximal end of the tube body 1. An infusion tube 2 and a monitoring tube 3 are provided on the connector 11. Both the infusion tube 2 and the monitoring tube 3 are connected to the tube body 1. A first connector 21 that can be connected to a nasogastric feeding bag is provided on the infusion tube 2. A first control valve 22 is provided on the first connector 21. A second connector 31 is provided on the monitoring tube 3. A second control valve 32 is provided on the second connector 31. A first branch tube 33 and a second branch tube 34 are provided on the second connector 31. A suction assembly 4 is provided at the end of the first branch tube 33. A drainage connector 35 is provided at the end of the second branch tube 34. A third control valve 36 is provided on the drainage connector 35.

[0023] Specifically, the tube body 1 and the infusion tube 2 can be nasogastric tubes or gastric tubes as used in the prior art. Preferably, the diameter of the tube body 1 is larger than the diameter of the infusion tube 2. For ease of description, the end of the tube body 1 that is farther from the operator is called the distal end, and the end of the tube body 1 that is closer to the operator is called the proximal end. During use, the distal end of the tube body 1 is inserted into the patient's stomach. A connector 11 is provided at the proximal end of the tube body 1. One end of the connector 11 is connected to the proximal end of the tube body 1, and the other end of the connector 11 is connected to the infusion tube 2 and the monitoring tube 3. Both the infusion tube 2 and the monitoring tube 3 are connected to the tube body 1. A first connector 21 is provided at the end of the infusion tube 2 that is far from the tube body 1. The first connector 21 can be a connector 11 corresponding to the nasogastric feeding bag. In this way, the nasogastric feeding bag can be connected and installed on the infusion tube 2, thereby providing nutrition to patients who cannot eat orally through the infusion tube 2.

[0024] In this embodiment, a second connector 31 is provided on the monitoring tube 3. One end of the second connector 31 is connected to the monitoring tube 3, and the other end of the second connector 31 is connected to a first branch tube 33 and a second branch tube 34. Both the first branch tube 33 and the second branch tube 34 are connected to the monitoring tube 3. A suction assembly 4 is provided at the end of the first branch tube 33 away from the second connector 31. The suction assembly 4 is used to aspirate and observe residual gastric fluid. A drainage connector 35 is provided at the end of the second branch tube 34. The drainage connector 35 is the same as the first connector 21 and can be connected to a nasogastric feeding bag or other bag. A first control valve 22 is provided on the first connector 21, a second control valve 32 is provided on the second connector 31, and a third control valve 36 is provided on the drainage connector 35. The first control valve 22, the second control valve 32, and the third control valve 36 can all be opened or closed during use to adapt to different operating modes.

[0025] When providing nutrition to patients who cannot eat orally, the first control valve 22 is opened and the second control valve 32 is closed. At this time, the nasogastric tube is opened and the monitoring tube 3 is closed. The nasogastric feeding bag is connected to the first connector 21, which can provide nutrition to the patient.

[0026] When monitoring of residual gastric fluid is required, the first control valve 22 is closed and the second control valve 32 is opened. During the initial aspiration operation: the third control valve 36 is closed, and the first branch tube 33 is connected to the monitoring tube 3, allowing for aspiration and observation of residual gastric fluid through the aspiration assembly 4. When the aspiration assembly 4 is full of residual gastric fluid, the drainage operation is performed: the second control valve 32 is closed and the third control valve 36 is opened, connecting the first branch tube 33 and the second branch tube 34. A bag is then connected to the drainage connector 35, allowing the residual gastric fluid in the aspiration assembly 4 to be transferred to the bag on the drainage connector 35. The aspiration and drainage operations are then performed sequentially until the operation is complete. Throughout the process, only one aspiration and drainage operation may be performed, or two, three, or more aspiration and drainage operations may be performed.

[0027] This utility model embodiment provides a gastric tube for monitoring gastric residual fluid. A connector 11 is provided at the proximal end of the tube body 1. An infusion tube 2 and a monitoring tube 3 are provided on the connector 11. A first connector 21, which can connect to a nasogastric feeding bag, is provided on the infusion tube 2. A second connector 31 is provided on the monitoring tube 3. A first branch tube 33 and a second branch tube 34 are provided on the second connector 31. A suction assembly 4 is provided at the end of the first branch tube 33, and a drainage connector 35 is provided at the end of the second branch tube 34. During use, connecting the nasogastric feeding bag to the infusion tube 2 provides nutrition to patients who cannot eat orally. When monitoring the patient's gastric residual fluid is required, a suction operation is performed using the suction assembly 4, the first branch tube 33, and the monitoring tube 3. The suctioned gastric residual fluid can be transported through the second branch tube 34 to the nasogastric feeding bag or the bag body. Throughout the process, the gastric residual fluid is not exposed, thus preventing the emission of unpleasant odors and contamination.

[0028] In this embodiment, preferably, the second connector 31 has a liquid channel for liquid to pass through inside, and the second connector 31 has a first connection port and a second connection port. The first branch pipe 33 and the second branch pipe 34 are respectively connected to the first connection port and the second connection port. Both the first connection port and the second connection port are connected to the liquid channel. The second control valve 32 is located at the end of the liquid channel near the monitoring pipe 3. When the second control valve 32 is in the closed or open state, both the first connection port and the second connection port are connected. That is, when the second control valve 32 is open, the monitoring pipe 3 is connected to the liquid channel. When the second control valve 32 is closed, the monitoring pipe 3 is not connected to the liquid channel. At this time, the first branch pipe 33, the liquid channel and the second branch pipe 34 are connected.

[0029] In this embodiment, preferably, the suction assembly 4 includes a suction cylinder 41 connected to the first branch tube 33 and a suction piston 42 disposed inside the suction cylinder 41. The suction piston 42 moves along the suction cylinder 41 to realize the suction operation of gastric residual fluid. The suction cylinder 41 is provided with a scale mark 410 and a transparent observation part. The scale mark 410 and the transparent observation part are arranged along the length direction of the suction cylinder 41. The amount of gastric residual fluid in the suction cylinder 41 can be observed through the transparent observation part and the scale mark 410.

[0030] In this embodiment, preferably, a sealing plate 43 is provided at the end of the suction cylinder 41 away from the first branch pipe 33, and a circular through hole 430 is provided on the sealing plate 43. The suction piston 42 includes a piston head 420 and a piston rod 421. The end of the piston rod 421 away from the piston head 420 extends out of the circular through hole 430 and is connected to an operating head. In use, the operator operates the operating head with their hand, which can drive the piston head 420 to move inside the suction cylinder 41, thereby realizing the suction operation of gastric residual fluid.

[0031] In this embodiment, preferably, the end of the piston rod 421 is provided with a cylindrical connector 422, which is connected to the piston head 420. The cylindrical connector 422 is provided with a locking part 423, which is an annular locking groove 424 provided on the cylindrical connector 422. The end of the sealing plate 43 near the suction cylinder 41 is provided with an annular opening 431, which is coaxially arranged and connected with the circular through hole 430. The size of the annular opening 431 is consistent with the size of the cylindrical connector 422. The side wall of the annular opening 431 is provided with a locking member 44 corresponding to the locking part 423. The locking member 44 and the locking part 423 have a locked state and an unlocked state: in the unlocked state, suction operation or liquid discharge operation can be performed; in the locked state, the piston rod 421 is locked, and the operator can adjust the first control valve 22, the second control valve 32 and the third control valve 36, so as to avoid the piston rod 421 being accidentally pushed during operation.

[0032] In this embodiment, preferably, the annular locking groove 424 is an arc-shaped groove along the axial direction of the cylindrical connector 422. That is, two arc-shaped surfaces are formed on both sides of the annular locking groove 424 along the axial direction of the cylindrical connector 422. The arc-shaped surfaces can press against the locking member 44. At the same time, the height of the arc-shaped surface on the side of the annular locking groove 424 away from the piston head 420 is lower, which facilitates the pressing and unlocking of the locking member 44. An annular inclined surface is provided at the end of the cylindrical connector 422 away from the piston head 420.

[0033] In this embodiment, preferably, a locking channel 432 is provided on the side wall of the annular opening 431. There are at least two locking channels 432, and a locking member 44 is provided in each locking channel 432. The locking member 44 includes a locking post 442 and a circular moving plate 440 provided on the locking post 442. Furthermore, a spring 441 is provided within the locking channel 432. One end of the spring 441 is connected to the circular moving plate 440, and the other end is connected to the inner wall of the locking channel 432. The spring 441 is arranged such that when the spring 441 is in its initial state, the locking pin 442 extends out from the annular opening 431. During the suction operation, when the suction operation is completed, the cylindrical connecting body 422 moves into the annular opening 431. The locking pin 442 is first pressed against the annular inclined surface of the cylindrical connecting body 422 and moves into the locking channel 432. At this time, the spring 441 is in a pressing state. When the cylindrical connecting body 422 has completely moved into the annular opening 431, the locking pin 442 is embedded into the annular locking groove 424 under the action of the spring 441, thereby locking the cylindrical connecting body 422. At this time, the piston rod 421 is locked. When it is necessary to push the piston rod 421, the piston rod 421 is pushed with force, and the arc-shaped surface of the annular locking groove 424 presses against the locking post 442, thereby causing the locking post 442 to move into the locking channel 432, realizing the unlocking operation of the cylindrical connector 422.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gastric tube for monitoring gastric residual fluid, comprising a tube body, characterized in that, A connector is provided at the proximal end of the tube body. An infusion tube and a monitoring tube are provided on the connector. Both the infusion tube and the monitoring tube are connected to the tube body. A first connector is provided on the infusion tube, which can be connected to the nasogastric feeding bag. A first control valve is provided on the first connector. A second connector is provided on the monitoring tube, which is equipped with a second control valve. A first branch tube and a second branch tube are provided on the second connector. A suction assembly is provided at the end of the first branch tube, and a drainage connector is provided at the end of the second branch tube. A third control valve is provided on the drainage connector.

2. The gastric tube for monitoring gastric residual fluid according to claim 1, characterized in that, The second connector has a liquid channel for liquid to pass through inside. The second connector has a first connection port and a second connection port. The first branch pipe and the second branch pipe are respectively connected to the first connection port and the second connection port. Both the first connection port and the second connection port are connected to the liquid channel.

3. The gastric tube for monitoring gastric residual fluid according to claim 2, characterized in that, The second control valve is located at one end of the liquid channel near the monitoring tube. When the second control valve is in the closed or open state, both the first connection port and the second connection port are connected.

4. The gastric tube for monitoring gastric residual fluid according to claim 1, characterized in that, The suction assembly includes a suction cylinder connected to the first branch pipe and a suction piston disposed inside the suction cylinder. The suction cylinder is provided with scale markings and a transparent observation section.

5. The gastric tube for monitoring gastric residual fluid according to claim 4, characterized in that, A sealing plate is provided at the end of the suction cylinder away from the first branch pipe, and a circular through hole is provided on the sealing plate.

6. The gastric tube for monitoring gastric residual fluid according to claim 5, characterized in that, The suction piston includes a piston head and a piston rod, with one end of the piston rod away from the piston head extending from the circular through hole and connected to an operating head.

7. The gastric tube for monitoring gastric residual fluid according to claim 6, characterized in that, The piston rod has a cylindrical connector at its end, which is connected to the piston head. The cylindrical connector has a locking part.

8. The gastric tube for monitoring gastric residual fluid according to claim 7, characterized in that, The sealing plate has an annular opening at one end near the suction cylinder. The annular opening is coaxially arranged and connected to the circular through hole. A locking member corresponding to the locking part is provided on the side wall of the annular opening.

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