Gastrointestinal nutrient canal

Abstract

The invention provides a gastrointestinal nutrition tube and belongs to the technical field of gastrointestinal tubules, the gastrointestinal nutrition tube comprises a tube body, the tube body is provided with a near end, a far end, an adjusting channel and an injection channel, the adjusting channel and the injection channel extend between the near end and the far end, a buffer film is arranged on the outer wall of the tube body, and a feeding hole and a discharging hole are formed in the buffer film. The feeding hole is communicated with the adjusting channel, the discharging hole penetrates through the pipe wall of the adjusting channel so that the buffer film can be communicated with the injection channel, a blocking piece is arranged in the adjusting channel, and the blocking state of the blocking piece on the feeding hole and the discharging hole can be adjusted by moving the position of the blocking piece in the adjusting channel. When the gastrointestinal nutrient canal is used, warm water is injected into the adjusting channel through the second connector, the warm water can enter the buffer film through the feeding hole, the buffer film can expand and block cardia or pylorus, and substances entering the stomach or enteric cavity can be effectively prevented from flowing back from the cardia or pylorus.

Description

Technical Field

[0001] The invention belongs to the technical field of gastrointestinal tubes, and particularly relates to a gastrointestinal nutrition tube. Background Art

[0002] A gastrointestinal feeding tube is a medical tube inserted through the nose, stomach, or intestines to provide nutritional support for patients who are unable to eat or have digestive and malabsorption disorders. It delivers liquid food, medication, or specialized nutritional supplements to help maintain the patient's nutritional needs and promote recovery. It is suitable for situations such as dysphagia, gastrointestinal surgery, and severe malnutrition. Common tubes include nasogastric and nasoenteric tubes.

[0003] The cardia is located at the junction of the esophagus and the stomach and is usually in a closed state. After food enters the stomach, the cardia will close to prevent gastric acid and other gastric substances from flowing back into the esophagus, avoiding damage to the esophagus. Secondly, the cardia can also regulate the speed at which food enters the stomach, so that food can enter the stomach more slowly and orderly so that the stomach can digest and process it; the pylorus is the junction of the stomach and the duodenum, and usually opens and closes in a certain pattern. It can control the amount and speed of food in the stomach entering the duodenum by opening and closing regularly, ensuring that food enters the intestine in an appropriate amount and rhythm, which is beneficial to intestinal digestion and absorption. At the same time, it can also prevent the contents of the duodenum from flowing back into the stomach, maintain the relative stability of the gastric environment, and reduce the adverse effects of abnormal reflux on the stomach. However, when using a gastrointestinal feeding tube, direct compression or continuous stimulation by the gastrointestinal feeding tube will affect the normal use of the cardia and pylorus, and substances entering the stomach or intestinal cavity will reflux from the cardia or pylorus, causing discomfort.

[0004] The Chinese patent application number CN202110693325.2 discloses an anti-reflux gastric tube, which belongs to the field of medical device technology. The anti-reflux gastric tube includes: a gastric tube body; the side wall of the gastric tube body is provided with an annular groove, and a cut-off assembly is provided in the annular groove; the annular groove includes a first end close to the inlet of the gastric tube body, and a second end close to the outlet of the gastric tube body; the cut-off assembly includes a blocking assembly, a stretching member, and a stretching guide wire; the blocking assembly and the stretching member are both sleeved on the outside of the gastric tube body, the blocking assembly is connected to the first end, the stretching member is close to the second end and connected to the stretching guide wire, and the stretching member moves to a position close to the first end under the drive of the stretching guide wire and stretches the blocking assembly. The invention uses a stretching member to stretch the blocking assembly, and the expanded blocking assembly fits against the wall of the human esophagus, thereby preventing the reflux of food or gastric juice. However, when the barrier component is expanded by the expansion member, the barrier component contacts the esophagus in an umbrella shape. The edge of the umbrella-shaped barrier component has a smaller contact area with the esophageal wall, which may cause excessive local pressure. The compression of the esophageal wall will not only cause esophageal mucosal ischemia or ulcers, but also increase discomfort.

[0005] The Chinese patent application number CN202110286814.6 discloses a double-lumen gastric tube for neonates, comprising a tube body, a first connector, a second connector, and a guidewire, wherein the tube body has a proximal end, a distal end, and a first channel and a second channel extending between the proximal end and the distal end, the proximal end is provided with a first through hole and a second through hole, the first through hole is connected to the first channel, the second through hole is located at a predetermined distance above the first through hole and is connected to the second channel; the first connector and the second connector are provided at the distal end, and the first connector is connected to the first channel, and the second connector is connected to the second channel; the guidewire is suitable for passing into the second channel via the second connector. The double-lumen gastric tube for neonates provided by this invention can be used for tube feeding, and can drain the gas in the gastric cavity to the outside of the body, alleviating phenomena such as flatulence and hiccups. However, during the insertion of the gastrointestinal feeding tube, the gastrointestinal feeding tube is easily blocked by viscous gastric juice, drug residues or incompletely dissolved nutrient solution, affecting subsequent use. The existing method usually uses a syringe to inject warm water at the distal end of the gastrointestinal feeding tube to solve the blockage problem. However, during the injection of warm water by the syringe, the internal pressure of the gastrointestinal feeding tube will increase due to the blockage of the gastrointestinal feeding tube. The blockage phenomenon is solved by pressure impacting the blocked end of the gastrointestinal feeding tube. During this process, the increased internal pressure of the gastrointestinal feeding tube will cause the gastrointestinal feeding tube to expand slightly, which will irritate the patient and cause discomfort. Moreover, the pressure at the moment the blocked end of the gastrointestinal feeding tube is opened is relatively high, which will cause a greater impact on the gastric cavity or intestinal cavity, causing local mucosal edema and bleeding, which will increase the patient's discomfort.

[0006] Therefore, in order to solve the above problems, it is necessary to provide a gastrointestinal nutrition tube. Summary of the Invention

[0007] The object of the present invention is to provide a gastrointestinal nutrition tube, which aims to solve the problem in the prior art that when using a gastrointestinal nutrition tube, the direct pressure or continuous stimulation of the gastrointestinal nutrition tube will affect the normal use of the cardia and pylorus, and the substances entering the stomach or intestinal cavity will reflux from the cardia or pylorus, causing discomfort. In addition, during the insertion of the gastrointestinal nutrition tube, the gastrointestinal nutrition tube is easily blocked by viscous gastric juice, drug residues or incompletely dissolved nutrient solution, affecting subsequent use. In addition, during the process of injecting warm water with a syringe, the internal pressure of the gastrointestinal nutrition tube is increased due to the blockage of the gastrointestinal nutrition tube. The blockage phenomenon is solved by pressure impacting the blocking end of the gastrointestinal nutrition tube. During this process, the increased internal pressure of the gastrointestinal nutrition tube will cause the gastrointestinal nutrition tube to expand slightly, which will stimulate the patient and cause discomfort. In addition, the pressure is relatively high at the moment the blocking end of the gastrointestinal nutrition tube is opened, which will cause a large impact on the gastric cavity or intestinal cavity, causing local mucosal edema and bleeding, which will increase the patient's discomfort.

[0008] To achieve the above object, the present invention provides the following technical solutions: A gastrointestinal nutrition tube includes a tube body, the tube body having a proximal end, a distal end, and an adjustment channel and an injection channel extending between the proximal end and the distal end; the outer wall of the tube body is provided with a buffer membrane; a feed hole and a discharge hole are opened on the outer wall of the tube body inside the buffer membrane; the feed hole is connected to the adjustment channel; the discharge hole passes through the tube wall of the adjustment channel, so that the buffer membrane is connected to the injection channel; a blocking member is provided inside the adjustment channel; moving the position of the blocking member in the adjustment channel can adjust the blocking state of the feed hole and the discharge hole by the blocking member.

[0009] Preferably, the feed hole is arranged above the discharge hole. When no material is injected into the regulating channel, the buffer membrane can fit with the outer surface of the tube body. When material is injected into the regulating channel, the material entering the regulating channel can cause the blocking member to move downward, thereby blocking the discharge hole, and the material entering the regulating channel can enter the interior of the buffer membrane through the feed hole, thereby causing the buffer membrane to expand.

[0010] Preferably, the gastrointestinal nutrition tube further comprises a first connector and a second connector provided at the distal end, the first connector being connected to the injection channel, and the second connector being connected to the regulating channel.

[0011] Preferably, a first through groove and a second through groove connected to the adjustment channel are provided inside the second joint, an accommodating cavity is provided inside the first through groove, the diameter of the accommodating cavity is larger than the diameter of the first through groove, a sliding part is provided inside the accommodating cavity, the outer diameter of the sliding part is smaller than the diameter of the accommodating cavity, an elastic part is connected between the bottom of the sliding part and the inner wall of the accommodating cavity, and a first sealing block adapted to the first through groove is provided on the top of the sliding part.

[0012] Preferably, a guide wire extending into the adjustment channel and connected to the blocking member is provided inside the second through groove, the outer diameter of the guide wire is smaller than the diameter of the second through groove, and the outer wall of the guide wire is provided with a second sealing member adapted to the second through groove.

[0013] Preferably, when the guide wire is moved, the blocking member can be moved between a first position and a second position inside the adjustment channel. The position where the blocking member can block the discharge hole inside the adjustment channel and the feed hole can be connected to the buffer membrane is the first position, and the position where the blocking member can block the feed hole inside the adjustment channel and the discharge hole can be connected to the buffer membrane is the second position.

[0014] Preferably, when no material is injected into the first through groove, the sliding part can keep the first sealing block in a blocked state on the first through groove under the elastic force of the elastic part; when material is injected into the first through groove, the material pressure pushes the first sealing block and the sliding part downward and releases the blockage, and the material can enter the interior of the adjusting channel, push the blocking part to move downward in the adjusting channel, contact with the bottom of the adjusting channel, reach the first position, and block the discharge hole; at this time, the blocking part drives the guide wire downward, and enables the second sealing part to be inserted into the top of the second through groove for blocking.

[0015] Preferably, when the guide wire is pulled outward, the second sealing member can be detached from the top of the second through groove and no longer block it, so that the adjustment channel can be connected to the outside world through the second through groove. The guide wire can pull the sealing member upward in the adjustment channel to reach the second position, and the feed hole can be blocked. At this time, the material entering the buffer membrane can enter the injection channel through the discharge hole under the action of the elastic reset of the buffer membrane.

[0016] Preferably, the material injected into the regulating channel is warm water.

[0017] Preferably, the guide wire is an elastic steel wire.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a buffer membrane and an adjustment channel. When a gastrointestinal nutrition tube is used, warm water is injected into the adjustment channel through the second joint. The warm water can enter the buffer membrane through the feed hole, causing the buffer membrane to expand. The expanded buffer membrane can contact the inside of the cardia or pylorus, thereby achieving blockage, and effectively preventing substances entering the stomach or intestinal cavity from flowing back from the cardia or pylorus. In addition, the warm water filled in the adjustment channel can soften the gastrointestinal nutrition tube to a certain extent, thereby improving the stretchability of the gastrointestinal nutrition tube during use and reducing the patient's discomfort.

[0019] The present invention provides a feed hole and a discharge hole. Before injecting nutrients or drugs into the injection channel through the first joint, the guide wire is first pulled to enable the blocking member to move upward in the adjustment channel. When the blocking member moves from the first position to the second position, the blocking member no longer blocks the discharge hole, but blocks the feed hole. At this time, the warm water entering the buffer membrane can enter the injection channel through the discharge hole under the action of the elastic reset of the buffer membrane. Under the action of the elastic force of the buffer membrane, the warm water entering the injection channel can maintain a certain flow rate to impact the proximal end of the injection channel, thereby avoiding blockage at the proximal end of the injection channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is an overall schematic diagram of the gastrointestinal nutrition tube of the present invention; Figure 2 Schematic diagram of the internal structure of the gastrointestinal nutrition tube of the present invention; Figure 3 It is a schematic structural diagram of the feed hole and the discharge hole of the present invention; Figure 4 Schematic diagram of the structure of the second joint of the present invention; Figure 5 Schematic diagram of the structure of the sliding member of the present invention.

[0021] In the figure: 1. Tube body; 11. Proximal end; 12. Distal end; 13. Adjustment channel; 14. Injection channel; 2. Buffer membrane; 21. Feed hole; 22. Discharge hole; 3. Blocking member; 4. First joint; 5. Second joint; 51. First through groove; 52. Second through groove; 53. Accommodating chamber; 54. Sliding member; 55. Elastic member; 56. First sealing block; 57. Guide wire; 58. Second sealing member. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1 The cardia is located at the junction of the esophagus and the stomach and is usually closed. After food enters the stomach, the cardia will close to prevent gastric acid and other gastric substances from flowing back into the esophagus, avoiding damage to the esophagus. Secondly, the cardia can also regulate the speed at which food enters the stomach, allowing food to enter the stomach more slowly and orderly so that the stomach can digest and process it. The pylorus is the junction of the stomach and the duodenum, and usually opens and closes in a certain pattern. It can control the amount and speed of food in the stomach entering the duodenum by opening and closing regularly, ensuring that food enters the intestine in an appropriate amount and rhythm, which is beneficial to intestinal digestion and absorption. At the same time, it can also prevent the contents of the duodenum from flowing back into the stomach, maintaining the relative stability of the gastric environment and reducing the adverse effects of abnormal reflux on the stomach. However, when using a gastrointestinal feeding tube, the direct pressure or continuous stimulation of the gastrointestinal feeding tube will affect the normal use of the cardia and pylorus, causing substances entering the stomach or intestinal cavity to reflux from the cardia or pylorus, causing discomfort.

[0024] See also Figures 1 to 4 The present invention provides the following technical solutions: a gastrointestinal nutrition tube, comprising a tube body 1, the tube body 1 having a proximal end 11, a distal end 12, and an adjusting channel 13 and an injection channel 14 extending between the proximal end 11 and the distal end 12, a buffer membrane 2 being provided on the outer wall of the tube body 1, a feed hole 21 and a discharge hole 22 being provided on the outer wall of the tube body 1 inside the buffer membrane 2, the feed hole 21 being connected to the adjusting channel 13, the discharge hole 22 penetrating the tube wall of the adjusting channel 13, so that the buffer membrane 2 is connected to the injection channel 14, a blocking member 3 being provided inside the adjusting channel 13, and the position of the blocking member 3 in the adjusting channel 13 can be moved to adjust the blocking state of the blocking member 3 on the feed hole 21 and the discharge hole 22.

[0025] After the tube body 1 is manufactured, the feed hole 21 and the discharge hole 22 are opened at the desired positions, and then the buffer film 2 is connected to the outer wall of the tube body 1 by thermoplastic technology. Thermoplastic technology is an existing method and will not be described in detail here.

[0026] The feed hole 21 is arranged above the discharge hole 22. When no material is injected into the regulating channel 13, the buffer membrane 2 can fit with the outer surface of the tube body 1. When material is injected into the regulating channel 13, the material entering the regulating channel 13 can cause the blocking member 3 to move downward, thereby blocking the discharge hole 22. The material entering the regulating channel 13 can enter the buffer membrane 2 through the feed hole 21, thereby causing the buffer membrane 2 to expand.

[0027] When the gastrointestinal nutrition tube is a nasogastric tube, the buffer membrane 2 should be set on the tube body 1 near the cardia. At this time, the buffer membrane 2 expands and can be in close contact with the inside of the cardia to achieve blocking, which can prevent the substances in the stomach from entering the esophagus from the cardia. When the gastrointestinal nutrition tube is a nasogastric tube, the buffer membrane 2 should be set on the tube body 1 near the pylorus. At this time, the buffer membrane 2 expands and can be in close contact with the inside of the pylorus to achieve blocking, which can prevent the substances inside the intestinal cavity from entering the stomach from the pylorus.

[0028] When using a gastrointestinal nutrition tube, different models of gastrointestinal nutrition tubes should be selected according to the depth of insertion of the gastrointestinal nutrition tube in the patient. When making a gastrointestinal nutrition tube, the buffer membrane 2 should be set at different positions of the tube body 1 according to factors such as the height and esophageal length of different patients in reality, and different models of gastrointestinal nutrition tubes should be made. When in use, the required insertion depth of the gastrointestinal nutrition tube is measured in vitro to select the corresponding model of gastrointestinal nutrition tube.

[0029] The length of the buffer membrane 2 on the nasogastric tube and the nasointestinal tube is different. Generally, the diameter of the cardia is about 2-3 cm, while the pylorus may be narrower, about 1.5-2.5 cm. Therefore, when the gastrointestinal nutrition tube is a nasogastric tube, the length of the buffer membrane 2 set should be greater than the length of the buffer membrane 2 set when the gastrointestinal nutrition tube is a nasointestinal tube. As the length of the buffer membrane 2 increases, the degree of expansion will also increase. The purpose is to ensure that when the corresponding model of gastrointestinal nutrition tube is selected, the expansion of the buffer membrane 2 can be in close contact with the inside of the cardia or pylorus.

[0030] When manufacturing gastrointestinal nutrition tubes of different models, the position data of the buffer membrane 2 on the tube body 1, the length data of the buffer membrane 2, and the expansion degree data can be obtained through experiments to ensure that after intubation, the buffer membrane 2 can stay at the patient's cardia or pylorus, and can block the cardia or pylorus after the buffer membrane 2 expands. The model of the gastrointestinal nutrition tube can be determined based on the patient's physical examination report. For example, first, an imaging test (such as ultrasound or CT) is used to determine the distance from the patient's nostril to the esophagus, and then to the cardia or pylorus, as well as the diameter data of the patient's cardia or pylorus. The above-mentioned physical examination test to obtain the corresponding data is an existing technical means in the medical field and will not be repeated here.

[0031] It should be noted that when no material is injected into the adjustment channel 13, the outer wall of the buffer membrane 2 can fit on the outer surface of the tube body 1, the purpose of which is to facilitate the insertion of the gastrointestinal nutrition tube as a whole into the human body, and when inserting the gastrointestinal nutrition tube, the outer walls of the tube body 1 and the buffer membrane 2 need to be lubricated to avoid the gastrointestinal nutrition tube causing discomfort to the esophagus during insertion. Lubricating the gastrointestinal nutrition tube is an existing technical means and will not be repeated here. When no material is injected into the adjustment channel 13, the inner wall of the buffer membrane 2 can contact with the tube body 1, the purpose of which is to facilitate the subsequent discharge of warm water that enters the buffer membrane 2.

[0032] The gastrointestinal nutrition tube further includes a first connector 4 and a second connector 5 provided at the distal end 12 . The first connector 4 is connected to the injection channel 14 , and the second connector 5 is connected to the regulation channel 13 .

[0033] Among them, nutrients or medicines can be injected into the injection channel 14 through the first connector 4. The first connector 4 can be compatible with the syringe for injecting nutrients or medicines. The existing technology will not be described here.

[0034] The material injected into the regulating channel 13 is warm water, and the selected warm water can be 40°C.

[0035] The purpose of choosing warm water as the material is, on the one hand, to soften the gastrointestinal nutrition tube by warm water, improve the stretchability of the gastrointestinal nutrition tube during use, and reduce the patient's discomfort; on the other hand, to facilitate the subsequent dissolution of blockages by warm water.

[0036] It should be noted that when using a gastrointestinal nutrition tube, the gastrointestinal nutrition tube is first inserted into the human body, and then warm water is injected into the regulating channel 13 through the second joint 5. The warm water enters the regulating channel 13, which can push the blocking member 3 to move downward, contact the bottom of the regulating channel 13, and block the discharge hole 22. At this time, the warm water entering the regulating channel 13 can enter the buffer membrane 2 through the feed hole 21, and can expand the buffer membrane 2. The expanded buffer membrane 2 can contact the inside of the cardia or pylorus, and can achieve blocking, which can effectively prevent substances entering the stomach or intestinal cavity from refluxing from the cardia or pylorus, and the warm water filled in the regulating channel 13 can soften the gastrointestinal nutrition tube to a certain extent, which can improve the stretchability of the gastrointestinal nutrition tube during use and reduce the patient's discomfort.

[0037] To sum up, the present invention provides a buffer membrane 2 and an adjustment channel 13. When a gastrointestinal nutrition tube is used, warm water is injected into the adjustment channel 13 through the second connector 5. The warm water can enter the buffer membrane 2 through the feed hole 21, causing the buffer membrane 2 to expand. The expanded buffer membrane 2 can contact the inside of the cardia or pylorus, thereby achieving blocking, and effectively preventing substances entering the stomach or intestinal cavity from flowing back from the cardia or pylorus. Moreover, the warm water filled in the adjustment channel 13 can soften the gastrointestinal nutrition tube to a certain extent, thereby improving the stretchability of the gastrointestinal nutrition tube and reducing the patient's discomfort.

[0038] Example 2 During the insertion of the gastrointestinal nutrition tube, the gastrointestinal nutrition tube is easily blocked by viscous gastric juice, drug residues or incompletely dissolved nutrient solution, affecting subsequent use. The current method is to inject warm water at the distal end of the gastrointestinal nutrition tube with a syringe to solve the blockage problem. However, during the injection of warm water by the syringe, the internal pressure of the gastrointestinal nutrition tube will increase due to the blockage of the gastrointestinal nutrition tube. The blockage phenomenon is solved by pressure impacting the blocked end of the gastrointestinal nutrition tube. During this process, the increased internal pressure of the gastrointestinal nutrition tube will cause the gastrointestinal nutrition tube to expand slightly, which will irritate the patient and cause discomfort. Moreover, the pressure at the moment the blocked end of the gastrointestinal nutrition tube is opened is relatively high, which will cause a greater impact on the gastric cavity or intestinal cavity, causing local mucosal edema and bleeding, which will increase the patient's discomfort.

[0039] See also Figures 2 to 5 The interior of the second joint 5 is provided with a first through groove 51 and a second through groove 52 connected to the adjustment channel 13. The interior of the first through groove 51 is provided with an accommodating cavity 53. The diameter of the accommodating cavity 53 is larger than the diameter of the first through groove 51. A sliding member 54 is provided inside the accommodating cavity 53. The outer diameter of the sliding member 54 is smaller than the diameter of the accommodating cavity 53. An elastic member 55 is connected between the bottom of the sliding member 54 and the inner wall of the accommodating cavity 53. The top of the sliding member 54 is provided with a first sealing block 56 adapted to the first through groove 51.

[0040] When no material is injected into the first through groove 51, the sliding member 54 can keep the first sealing block 56 in a blocked state with respect to the first through groove 51 under the elastic force of the elastic member 55. When material is injected into the first through groove 51, the material pressure pushes the first sealing block 56 and the sliding member 54 downward and releases the blockage. The purpose of the unidirectional setting is to increase the pressure inside the regulating channel 13 when warm water is injected into the regulating channel 13, thereby ensuring that the buffer membrane 2 can expand.

[0041] A guide wire 57 extending into the interior of the adjustment channel 13 and connected to the blocking member 3 is provided inside the second through groove 52. The outer diameter of the guide wire 57 is smaller than the diameter of the second through groove 52. The outer wall of the guide wire 57 is provided with a second sealing member 58 adapted to the second through groove 52. The end of the guide wire 57 away from the blocking member 3 is located outside for easy operation.

[0042] The outer diameter of the guide wire 57 is smaller than the diameter of the second through groove 52 , so as to ensure that the gas or warm water inside the regulating channel 13 can flow to the outside through between the guide wire 57 and the second through groove 52 .

[0043] When the guide wire 57 is moved, the blocking member 3 can be moved between the first position and the second position inside the regulating channel 13. Figure 3 As shown, the blocking member 3 is in the first position inside the regulating channel 13, where the discharge hole 22 can be blocked while the feed hole 21 can communicate with the buffer membrane 2. Figure 5 As shown, the blocking member 3 is located inside the regulating channel 13 , and the position where the feeding hole 21 can be blocked while the discharging hole 22 can be connected to the buffer membrane 2 is the second position.

[0044] When no material is injected into the first through groove 51, the sliding member 54 can keep the first sealing block 56 in a blocked state with respect to the first through groove 51 under the elastic force of the elastic member 55. When material is injected into the first through groove 51, the material pressure pushes the first sealing block 56 and the sliding member 54 downward and releases the blockage. The material can enter the interior of the regulating channel 13, push the blocking member 3 to move downward in the regulating channel 13, contact the bottom of the regulating channel 13, reach the first position, and block the discharge hole 22. At this time, the blocking member 3 drives the guide wire 57 to move downward, so that the second sealing member 58 can be inserted into the top of the second through groove 52 for blocking.

[0045] When the guide wire 57 is pulled outward, the second sealing member 58 can be detached from the top of the second through groove 52 and no longer block it, so that the adjustment channel 13 can be connected to the outside world through the second through groove 52. The guide wire 57 can pull the sealing member 3 to move upward in the adjustment channel 13 and reach the second position, so that the feed hole 21 can be blocked. At this time, the material entering the buffer membrane 2 can enter the injection channel 14 through the discharge hole 22 under the action of the elastic reset of the buffer membrane 2.

[0046] The guide wire 57 is made of elastic steel wire, which can bend and adjust synchronously with the gastrointestinal nutrition tube during intubation.

[0047] It should be noted that when using a gastrointestinal nutrition tube, the gastrointestinal nutrition tube is first inserted into the human body, and then warm water is injected into the regulating channel 13 through the second joint 5. The warm water enters the regulating channel 13, which can push the blocking member 3 to move downward, contact the bottom of the regulating channel 13, and block the discharge hole 22. At the same time, during the downward movement of the blocking member 3, the blocking member 3 drives the guide wire 57 to move downward, so that the second sealing member 58 can be inserted into the top of the second through groove 52 and blocked, which can ensure that the regulating channel 13 remains sealed. In this state, warm water injected into the regulating channel 13 can enter the buffer membrane 2 through the feed hole 21, causing the buffer membrane 2 to expand and achieve blocking. In order to prevent the proximal end 11 of the gastrointestinal nutrition tube from being blocked by viscous gastric juice, drug residues or incompletely dissolved nutrient solution during the insertion process, before injecting nutrients or drugs into the injection channel 14 through the first connector 4, the guide wire 57 is pulled first. The stretching of the guide wire 57 can cause the second sealing member 58 to detach from the top of the second through groove 52 first and no longer block the regulating channel 13. When the sealing member 3 is connected to the outside world, the sealing state of the regulating channel 13 is broken, and then the guide wire 57 is pulled, the blocking member 3 can move upward in the regulating channel 13, pushing the warm water and gas inside the regulating channel 13 to move upward, so that the warm water and gas inside the regulating channel 13 can be discharged from the second through groove 52. When the blocking member 3 moves from the first position to the second position, the blocking member 3 no longer blocks the discharge hole 22, but blocks the feed hole 21. At this time, the warm water entering the buffer membrane 2 can pass through the discharge hole 22 under the action of the elastic reset of the buffer membrane 2. The hole 22 enters the interior of the injection channel 14 and is affected by the elastic force of the buffer membrane 2, which can keep the warm water entering the injection channel 14 at a certain flow rate to impact the proximal end 11 of the injection channel 14, thereby avoiding the blockage of the proximal end 11 of the injection channel 14. After that, warm water is injected into the adjustment channel 13 again through the first through groove 51, so that the buffer membrane 2 expands again and contacts the inside of the cardia or pylorus to achieve blockage, effectively preventing the subsequent substances injected into the stomach or intestinal cavity through the injection channel 14 from flowing back from the cardia or pylorus.

[0048] During the process of injecting substances into the stomach or intestinal cavity through the injection channel 14, the expanded buffer membrane 2 can contact the inside of the cardia or pylorus, which not only plays a blocking role, but also provides support for the tube body 1 to prevent movement. After each injection of substances into the stomach or intestinal cavity through the injection channel 14, before taking out the tube body 1, it is necessary to pull the guide wire 57 so that the buffer membrane 2 no longer expands. During this process, the warm water entering the buffer membrane 2 can enter the injection channel 14 through the discharge hole 22 under the action of the elastic reset of the buffer membrane 2, and can clean the proximal end 11 of the injection channel 14, thereby avoiding that when the gastrointestinal nutrition tube is taken out, the proximal end 11 carries a lot of stomach or intestinal substances into the esophagus, thereby preventing damage to the esophagus.

[0049] If the blockage of the proximal end 11 of the injection channel 14 is more serious, warm water can be repeatedly injected into the adjustment channel 13 through the first through groove 51 to expand the buffer membrane 2 and pull the guide wire 57, so that the warm water entering the buffer membrane 2 can enter the injection channel 14 through the discharge hole 22 under the action of the elastic reset of the buffer membrane 2. In this way, the serious blockage problem is solved by multiple warm water impacts. In this process, since the position of the buffer membrane 2 is the same each time, the degree of expansion each time is relatively consistent, and the force of the buffer membrane 2 when it resets each time is relatively stable, which can make the flow rate of the warm water entering the injection channel 14 more consistent. It can avoid the situation of relying on experience to adjust the injection speed when manually injecting warm water through a syringe to solve the blockage, thereby improving applicability, and can avoid the greater impact on the gastric cavity or intestinal cavity when solving the blockage phenomenon through pressure shock through a stable flow rate, thereby improving comfort.

[0050] To sum up, the present invention sets the feed hole 21 and the discharge hole 22. Before injecting nutrients or drugs into the injection channel 14 through the first joint 4, the guide wire 57 is pulled first, which can make the blocking member 3 move upward in the adjustment channel 13. When the blocking member 3 moves from the first position to the second position, the blocking member 3 no longer blocks the discharge hole 22, but blocks the feed hole 21. At this time, the warm water entering the buffer membrane 2 can enter the injection channel 14 through the discharge hole 22 under the action of the elastic reset of the buffer membrane 2. Under the action of the elastic force of the buffer membrane 2, the warm water entering the injection channel 14 can maintain a certain flow rate to impact the proximal end 11 of the injection channel 14, thereby avoiding the blockage phenomenon of the proximal end 11 of the injection channel 14.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gastrointestinal nutrition tube, characterized in that: The invention comprises a tube body, which has a proximal end, a distal end, and an adjustment channel and an injection channel extending between the proximal end and the distal end. The outer wall of the tube body is provided with a buffer membrane, and a feed hole and a discharge hole are opened on the outer wall of the tube body inside the buffer membrane. The feed hole is connected with the adjustment channel, and the discharge hole passes through the tube wall of the adjustment channel to connect the buffer membrane with the injection channel. A blocking member is provided inside the adjustment channel, and moving the position of the blocking member in the adjustment channel can adjust the blocking state of the feed hole and the discharge hole by the blocking member.

2. The gastrointestinal nutrition tube according to claim 1, characterized in that: The feed hole is arranged above the discharge hole. When no material is injected into the regulating channel, the buffer membrane can fit with the outer surface of the tube body. When material is injected into the regulating channel, the material entering the regulating channel can cause the blocking member to move downward, thereby blocking the discharge hole. Moreover, the material entering the regulating channel can enter the interior of the buffer membrane through the feed hole, thereby causing the buffer membrane to expand.

3. The gastrointestinal nutrition tube according to claim 2, characterized in that: It also includes a first connector and a second connector arranged at the distal end, the first connector is connected to the injection channel, and the second connector is connected to the adjustment channel.

4. The gastrointestinal nutrition tube according to claim 3, characterized in that: A first through groove and a second through groove connected to the adjustment channel are provided inside the second joint, an accommodating cavity is provided inside the first through groove, the diameter of the accommodating cavity is larger than the diameter of the first through groove, a sliding part is provided inside the accommodating cavity, the outer diameter of the sliding part is smaller than the diameter of the accommodating cavity, an elastic part is connected between the bottom of the sliding part and the inner wall of the accommodating cavity, and a first sealing block adapted to the first through groove is provided on the top of the sliding part.

5. The gastrointestinal nutrition tube according to claim 4, characterized in that: A guide wire extending into the regulating channel and connected to the blocking member is provided inside the second through groove. The outer diameter of the guide wire is smaller than the diameter of the second through groove. A second sealing member adapted to the second through groove is provided on the outer wall of the guide wire.

6. The gastrointestinal nutrition tube according to claim 5, characterized in that: When the guide wire is moved, the blocking member can move between a first position and a second position inside the adjustment channel. The position where the blocking member can block the discharge hole inside the adjustment channel and the feed hole can be connected to the buffer membrane is the first position, and the position where the blocking member can block the feed hole inside the adjustment channel and the discharge hole can be connected to the buffer membrane is the second position.

7. The gastrointestinal nutrition tube according to claim 6, characterized in that: When no material is injected into the first through groove, the sliding part can keep the first sealing block in a blocked state on the first through groove under the elastic force of the elastic part; when material is injected into the first through groove, the material pressure pushes the first sealing block and the sliding part downward and releases the blockage, and the material can enter the interior of the adjusting channel, push the blocking part to move downward in the adjusting channel, contact with the bottom of the adjusting channel, reach the first position, and block the discharge hole; at this time, the blocking part drives the guide wire to move downward, and enables the second sealing part to be inserted into the top of the second through groove for blocking.

8. The gastrointestinal nutrition tube according to claim 7, characterized in that: When the guide wire is pulled outward, the second sealing member can be detached from the top of the second through groove and no longer block it, so that the adjustment channel can be connected to the outside world through the second through groove. The guide wire can pull the sealing member upward in the adjustment channel to reach the second position, so as to block the feed hole. At this time, the material entering the buffer membrane can enter the injection channel through the discharge hole under the action of the elastic reset of the buffer membrane.

9. The gastrointestinal nutrition tube according to claim 8, characterized in that: The material injected into the regulating channel is warm water.

10. The gastrointestinal nutrition tube according to claim 9, characterized in that: The guide wire is an elastic steel wire.

Images