A nasointestinal tube and a method for treating blockage of the nasointestinal tube

Abstract

The present application relates to the technical field of medical devices, and specifically discloses a nasojejunal tube and a method for treating tube blockage of the nasojejunal tube, which comprises an intestinal feeding tube, further comprises a water and gas tube in communication with the middle and lower sections of the intestinal feeding tube close to the output end, and a filter is connected to the input end of the intestinal feeding tube, wherein the filter comprises a tee joint and a filter screen, the tee joint comprises an input port, an output port and a bypass port, the input port and the output port are located on the same axis, the input port is used for the entry of nutrient solution, the output port is in communication with the input end of the intestinal feeding tube, the bypass port is at an acute angle with the output port, the filter screen separates the input port and the output port, and the filter screen is inclined towards the bypass port; the bypass port is in communication with a bypass tube, and an auxiliary joint is further connected to the intestinal feeding tube, and the auxiliary joint is in communication with the output port of the tee joint through the intestinal feeding tube. The present application reduces the problem that the existing technology cannot realize tube unblocking after the tube blockage of the nasojejunal tube from the aspects of preventing tube blockage and the method for unblocking the tube after the tube blockage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a nasojejunal tube and a method for treating tube blockage of the nasojejunal tube. BACKGROUND

[0002] The nasojejunal tube is a tube inserted into the nasal cavity, passing through the pharynx, esophagus and stomach, and placed into the duodenum or jejunum for intrajejunal nutrition infusion. Nasogastric feeding has the advantages of high safety, economic convenience, and maximum reduction of aspiration risk, and is an important means for establishing enteral nutrition therapy access for adult patients. At present, this nutrition support approach has been widely used in the treatment of critically ill patients, elderly patients, severe pancreatitis patients, postoperative patients, etc., and has achieved ideal results.

[0003] However, due to the factors such as the long and small inner diameter of the nasojejunal tube, the viscosity of the nutritional preparation, the unreasonable drug infusion, the untimely tube flushing, the improper infusion speed of the nutritional liquid, and the change in the nature of the nutritional liquid, tube blockage may occur. Tube blockage is one of the most common mechanical complications in the application of the nasojejunal tube, and is also an important reason for unplanned extubation.

[0004] In the prior art, in order to reduce the probability of unplanned extubation, for the case of nasojejunal tube infusion of nutritional liquid, medical staff are required to flush the tube every 4 hours or to warm the infused nutritional liquid. However, in actual application, it is found that due to the viscosity of some nutritional liquids and the need to inject crushed drugs into the patient's body together with the nutritional liquid, there will still be a certain proportion of blocked tubes that cannot be unblocked in reality. If the tube is blocked and cannot be unblocked, it will cause the interruption of enteral nutrition support for the patient, and reinsertion of the tube not only causes pain to the patient, but also causes economic loss to the patient, affects the treatment effect, prolongs the hospitalization time, reduces patient satisfaction, and increases the workload of medical staff. SUMMARY

[0005] The present application aims to provide a nasojejunal tube to reduce the problem of blocked tube in the prior art.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A nasojejunal tube, comprising a jejunum nutrition tube, further comprising a water and gas tube in communication with the middle and lower segments of the jejunum nutrition tube close to the output end, the water and gas tube being used to inject a tube-unblocking fluid into the jejunum nutrition tube when the tube is blocked, and the input end of the jejunum nutrition tube being connected with a filter.

[0008] The principle and advantages of the present scheme are: when the primary selection of the intestinal nutrient tube is blocked, the conventional method of injecting warm water or physiological saline from the input end of the intestinal nutrient tube is abandoned, and instead, warm water or physiological saline is injected into the water gas pipe, so that the injected liquid directly reaches the section of the intestinal nutrient tube close to the patient's intestinal tract, and the liquid for pipe flushing moves a smaller path to push the nutrient liquid in the intestinal nutrient tube located in the patient's intestinal tract area, reducing the resistance of the nutrient liquid that needs to be broken by the liquid for pipe flushing, improving the efficiency of pipe flushing and the success rate of pipe flushing.

[0009] In addition, because the water gas pipe is not in use during the normal infusion of nutrient liquid in the intestinal nutrient pipe, the inner wall of the water gas pipe is cleaner than the inner wall of the intestinal nutrient pipe, and when liquid or gas is injected from the water gas pipe, the pressure drop during fluid flow is reduced, so that the fluid flow rate at the output end of the water gas pipe is relatively faster, and the impact force on the blocked part of the nutrient liquid is greater, which is more conducive to improving the success probability of pipe flushing.

[0010] In addition, in order to further reduce the occurrence of pipe blockage, a filter is installed at the input end of the intestinal nutrient pipe, so that the nutrient liquid entering the intestinal nutrient pipe must pass through the filter before entering the intestinal nutrient pipe, to prevent large particles from entering the intestinal nutrient pipe.

[0011] Preferably, as an improvement, the filter comprises a tee joint and a filter screen, the tee joint comprises an input port, an output port and a bypass port, the input port and the output port are on the same axis, the input port is used for the nutrient liquid to enter, the output port communicates with the input end of the intestinal nutrient pipe, the bypass port is at an acute angle with the output port, the filter screen separates the input port and the output port, and the filter screen is inclined towards the bypass port; the bypass port is communicated with a bypass pipe; the intestinal nutrient pipe is also communicated with an auxiliary joint, and the auxiliary joint communicates with the output port of the tee joint through the intestinal nutrient pipe.

[0012] Beneficial effects: when the filter screen is blocked by substances, the intestinal nutrient pipe is cut off, the input port of the tee joint is closed, and the bypass pipe is opened, and then fluid is injected into the auxiliary joint, so that the injected fluid impacts the filter screen from the output port in reverse, the nutrient liquid impacting the filter screen moves along the inclined filter screen to the bypass pipe, and then the substances intercepted by the filter screen are discharged from the bypass pipe.

[0013] Preferably, as an improvement, a gastric decompression pipe is further included, the length of the gastric decompression pipe is shorter than that of the intestinal nutrient pipe, both ends of the gastric decompression pipe are provided with openings, and the position where the water gas pipe communicates with the intestinal nutrient pipe is located at the end of the gastric decompression pipe.

[0014] Beneficial effects: the present scheme provides the gastric decompression pipe, so that for patients with gastroparesis or insufficient gastric motility, gastric liquid can be discharged in time by using the gastric decompression pipe to communicate negative pressure, avoiding the difficulty of repositioning the gastric tube.

[0015] Preferably, as an improvement, the gastric decompression tube is located on one side of the intestinal nutrition tube and the water-gas tube, the inner diameter of the water-gas tube is smaller than that of the intestinal nutrition tube, and the overall cross-section of the gastric decompression tube, the water-gas tube and the intestinal nutrition tube is circular.

[0016] Beneficial effects: the present scheme makes the cross-sectional width of the gastric decompression tube wider than when the gastric decompression tube is sleeved outside the intestinal nutrition tube, which is beneficial to the rapid discharge of gastric juice. At the same time, the overall cross-section of the entire nasojejunal tube is circular, which reduces the difficulty of nasojejunal tube placement.

[0017] The present application also provides a nasojejunal tube clogging treatment method, which needs to use the nasojejunal tube, and further comprises the following steps:

[0018] When the filter screen is not clogged, and the intestinal nutrition tube cannot continue to infuse the nutrient solution, the following steps are performed:

[0019] S11, closing the input end of the intestinal nutrition tube so that the intestinal nutrition tube no longer continues to input the nutrient solution, and injecting fluid into the intestinal nutrition tube through the water-gas tube, if the fluid can be continuously injected, step A is performed, if the fluid cannot be continuously injected, steps S12 and S13 are performed;

[0020] Step A, the amount of fluid injected through the water-gas tube is not less than 20ml, after the injection is completed, the intestinal nutrition tube is opened to continue to infuse the nutrient solution, if the nutrient solution cannot be infused from the intestinal nutrition tube, step S12 is performed;

[0021] S12, closing the input port and the bypass port of the three-way joint, the intestinal nutrition tube is only connected with the auxiliary joint and the water-gas tube, fluid is injected into the water-gas tube, and the material in the intestinal nutrition tube is sucked from the auxiliary joint until the intestinal nutrition tube is unblocked in the section connected with the auxiliary joint and the water-gas tube, and then the suction from the auxiliary joint is stopped;

[0022] S13, after step S12 is completed, liquid is injected into the intestinal nutrition tube through the auxiliary joint, and gas is injected into the water-gas tube, so that the liquid and the gas are simultaneously extruded to the middle and lower sections of the intestinal nutrition tube.

[0023] Beneficial effects: When the present scheme is adopted, because the position of the intestinal feeding tube blockage is mostly in the section of the intestinal tube at the end of the stomach and into the patient's intestinal tract. This section belongs to the middle and lower section of the intestinal feeding tube (also known as the end section of the intestinal feeding tube). The intestinal feeding tube bends with the intestinal tract in the middle and lower section, so it is more likely to be blocked. If the fluid is directly injected from the input end of the intestinal feeding tube for flushing, the entire material in the intestinal feeding tube needs to be squeezed out from the output end of the intestinal feeding tube to achieve unblocking, which greatly increases the difficulty of unblocking. Moreover, when the intestinal feeding tube is blocked in the middle and lower section, the conventional method of injecting fluid from the input end of the intestinal feeding tube for flushing may even make the blocked position in the middle and lower section of the intestinal feeding tube more compact, thereby increasing the probability of unblocking.

[0024] When the present scheme finds that the intestinal feeding tube cannot continue to infuse the nutrient solution and the filter screen is not blocked, it can be determined that the intestinal feeding tube is blocked. At this time, the step S11 is used first to flush the middle and lower section of the intestinal feeding tube directly using the water and gas tube. If it can be unblocked, the intestinal feeding tube is used to continue to infuse the nutrient solution. If the nutrient solution still cannot be infused into the patient's body at this time, it means that the intestinal feeding tube is blocked in the section of the auxiliary connector and the section connected with the water and gas tube. At this time, the step S12 is used to inject fluid into the intestinal feeding tube through the water and gas tube while sucking the material in the intestinal feeding tube from the auxiliary connector, so as to achieve the extraction of the nutrient material in the section of the pharynx, esophagus and stomach of the intestinal feeding tube, that is, the unblocking of the front section and middle section of the intestinal feeding tube. After the section is unblocked, the entire intestinal feeding tube is unblocked.

[0025] If the blockage is more serious and the fluid cannot be injected through the water and gas tube alone, step S12 needs to be performed at this time. First, the fluid is injected into the water and gas tube, and the intestinal feeding tube is sucked through the auxiliary connector, so that the section of the pharynx, esophagus and stomach of the intestinal feeding tube is quickly unblocked under the extrusion of the fluid injected from the water and gas tube at one end (that is, the section of the intestinal feeding tube connected with the auxiliary connector and the water and gas tube). When the intestinal feeding tube is unblocked in this section, step S13 is used to inject the liquid for unblocking from the input end of the intestinal feeding tube while injecting gas through the water and gas tube, so that the mixture of gas and liquid is quickly sent to the middle and lower section close to the output end of the intestinal feeding tube. Because the fluid for unblocking contains both liquid and gas, the resistance of the gas is smaller, so the gas will be pushed further, that is, it will enter the middle and lower section of the intestinal feeding tube faster, and the originally dense nutrient solution will be filled with gas, reducing the viscosity of the nutrient solution at the blocked position, and greatly improving the probability of unblocking success.

[0026] Preferably, as an improvement, when the filter screen is blocked, the following steps are further included:

[0027] S21, block the continuing infusion of the intestinal nutrition tube, close the input port of the three-way joint, open the bypass pipe communicated with the three-way joint, and make the auxiliary joint only communicated with the output port of the three-way joint;

[0028] S22, pump the pipe-passing liquid to the nasojejunal tube through the auxiliary joint, the pipe-passing liquid impacts the filter screen from the output port of the three-way joint, and the substances left on the filter screen are flushed to the bypass pipe and flow out.

[0029] Preferably, as an improvement, the input port of the three-way joint is communicated with an input pipe, the first valve is installed on the input pipe, the second valve is installed on the intestinal nutrition tube, and the auxiliary joint is located between the second valve and the output port of the three-way joint.

[0030] Beneficial effects: the closing of the input port of the three-way joint is realized through the first valve, the input blocking of the intestinal nutrition tube is realized through the second valve, and the operation is simple and convenient.

[0031] Preferably, as an improvement, the input pipe is provided with a pipeline pressure monitor, and the pipeline pressure monitor sends an alarm signal when the pressure in the input pipe is monitored to exceed a preset value, so as to play a reminding role.

[0032] Preferably, as an improvement, the bypass pipe is communicated with the infusion device for infusion of the nutrient solution, so that the large-sized nutrient substances intercepted by the filter screen can be sent to the infusion device again, so as to reduce the probability of waste of the nutrient solution.

[0033] Preferably, as an improvement, the infusion device is an infusion device with a stirring function, so that the large block substances gathered in the nutrient solution are stirred uniformly through the stirring structure or the size of the nutrient substances is smaller through the stirring, and the probability of filter screen blocking is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view schematic diagram of the embodiment of the application.

[0035] Figure 2 It is a front view schematic diagram of the lower segment of the nasojejunal tube in the embodiment of the application.

[0036] Figure 3 It is a longitudinal section schematic diagram of the nasojejunal tube in the embodiment of the application, which shows the connection relationship between the intestinal nutrition tube and the water and gas pipe.

[0037] Figure 4 It is a transverse section schematic diagram of the nasojejunal tube in the embodiment of the application, which shows the intestinal nutrition tube, the gastric decompression tube and the water and gas pipe.

[0038] Figure 5 It is a front view schematic diagram of the nasojejunal tube in the embodiment of the application, which shows the connection relationship between the intestinal nutrition tube, the bypass pipe and the input pipe.

[0039] Figure 6A front view of a filter according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The application will be further described in detail by the following specific embodiments:

[0041] The reference signs in the attached drawings of the specification include: an intestinal feeding tube 1, a gastric decompression tube 2, a water and gas tube 3, a three-way joint 4, an input port 41, an output port 42, a bypass port 43, a filter 5, a bypass tube 6, a bypass valve 61, an auxiliary joint 7, an input tube 8, a first valve 81, a second valve 11, a line pressure monitor 82, and an infusion device 10.

[0042] EMBODIMENT

[0043] COMBINATION Figures 1 to 6 The nasal intestinal tube comprises the intestinal feeding tube 1, the gastric decompression tube 2 and the water and gas tube 3 which are integrally formed, the gastric decompression tube 2 is located on one side of the intestinal feeding tube 1 and the water and gas tube 3, the flow passage cross section of the gastric decompression tube 2 is greater than or equal to the flow passage cross section of the intestinal feeding tube 1 which is greater than or equal to the flow passage cross section of the water and gas tube 3, the flow passage cross sections of the intestinal feeding tube 1 and the water and gas tube 3 are circular, the flow passage cross section of the gastric decompression tube 2 is crescent-shaped, the overall cross section of the gastric decompression tube 2, the water and gas tube 3 and the intestinal feeding tube 1 is circular, and the adjacent tubes share a common tube wall.

[0044] The length of the gastric decompression tube 2 is shorter than that of the intestinal feeding tube 1, the gastric decompression tube 2 can be placed in the stomach of a human body, and the output end of the intestinal feeding tube 1 can be placed in the intestinal tract of the human body when the end of the gastric decompression tube 2 is placed in the stomach of the human body.

[0045] Both ends of the gastric decompression tube 2 are provided with openings to facilitate the decompression and drainage of gastric juice.

[0046] The position where the water and gas tube 3 communicates with the intestinal feeding tube 1 is located at the end of the gastric decompression tube 2 close to the output end of the intestinal feeding tube 1. The water and gas tube 3 is used to inject a pipe-cleaning fluid into the intestinal feeding tube 1 when the intestinal feeding tube 1 is blocked, and the input end of the intestinal feeding tube 1 is connected with a filter.

[0047] The filter comprises a tee joint 4 and a filter screen 5, the tee joint 4 comprises an integrally formed input port 41, an output port 42 and a bypass port 43, the input port 41 is coaxial with the output port 42, the input port 41 is used for the nutrition liquid to enter, the output port 42 is communicated with the input end of the enteral nutrition tube 1, the bypass port 43 is at an acute angle with the output port 42, the filter screen 5 separates the input port 41 and the output port 42, and the filter screen 5 is inclined towards the bypass port 43; the bypass port 43 is communicated with a bypass pipe 6, the bypass pipe 6 is provided with a bypass valve 61, the bypass pipe 6 is communicated with the infusion device 10 used for infusion of the nutrition liquid, and the infusion device 10 is an infusion device 10 with a stirring function and a heating function. The input end of the enteral nutrition tube 1 is also communicated with an auxiliary joint 7, the auxiliary joint 7 is communicated with the output port 42 of the tee joint 4 through the enteral nutrition tube 1.

[0048] The filter screen 5 of the embodiment is a cylindrical filter screen, the axial direction of the filter screen 5 is coaxial with the axial direction of the bypass port 43, and the filter screen 5 can be taken out through the bypass port 43, so that the filter screen can be conveniently cleaned or replaced.

[0049] The input port 41 of the tee joint 4 is communicated with an input pipe 8, the input pipe 8 is provided with a first valve 81, and the input end of the input pipe 8 is communicated with the infusion device 10. The input pipe 8 is provided with a pipeline pressure monitor 82 (for example, a pipeline pressure monitor of an enteral nutrition infusion device disclosed in a patent with a publication number CN213748892U), and the pipeline pressure monitor 82 sends an alarm signal when the pressure in the input pipe 8 is detected to exceed a preset value.

[0050] The enteral nutrition tube 1 is provided with a second valve 11, and the auxiliary joint 7 is located between the second valve 11 and the output port 42 of the tee joint 4.

[0051] The tee joint 4 of the embodiment is made of transparent material, so that the situation on the filter screen 5 can be observed;

[0052] In addition, the input pipe 8, the water and gas pipe 3, the gastric decompression pipe 2 and the enteral nutrition tube 1 of the embodiment can also be made of transparent material.

[0053] When the nasal intestinal tube normally infuses the nutrition liquid, the first valve 81 and the second valve 11 are opened, and the auxiliary joint 7, the bypass valve 61 and the water and gas pipe 3 are closed.

[0054] The nasal intestinal tube blockage processing method of the embodiment comprises the following steps:

[0055] When the filter screen 5 is not blocked through the transparent tee joint 4, and the pipeline pressure monitor 82 alarm shows that the pressure exceeds the preset value, it indicates that the enteral nutrition tube 1 is blocked, at this time, the nutrition liquid in the infusion device 10 cannot continue to be infused into the human body through the enteral nutrition tube 1, and the following steps are performed:

[0056] S11, close the second valve 11, so that the enteric feeding tube 1 no longer continue to input the nutrient solution, and use the syringe to inject the tube-passing fluid into the enteric feeding tube 1 through the water-air tube 3, the tube-passing fluid such as warm water or warm saline; when the injection tube is used, the pulse injection method is adopted, and the suction reciprocating cycle is improved to improve the speed of tube-passing; if the tube-passing fluid can be continuously injected, step A is executed, if the fluid cannot be continuously injected, steps S12 and S13 are executed;

[0057] Step A, the amount of fluid injected through the water-air tube 3 is not less than 20 ml, after the injection is completed, the part of the enteric feeding tube 1 close to the output end located in the human intestine is dredged, and the end of the enteric feeding tube 1 is realized. Tube-passing, because most of the blockage of the nutrient solution occurs in the enteric feeding tube 1 located in the intestine, most of the end blockage can be dredged, after the end is dredged, the second valve 11 is opened, and the enteric feeding tube 1 continues to infuse the nutrient solution to the patient. But if the second valve 11 is opened, the nutrient solution cannot continue to be infused, which means that the enteric feeding tube 1 has been blocked between the second valve 11 and the water-air tube 3, at this time, step S12 is executed, after step S12 is executed, the water-air tube 3 and the auxiliary connector 7 are closed, and the second valve 11 is opened, so that the enteric feeding tube 1 continues to infuse the nutrient solution to the input end.

[0058] S12, close the first valve 81 and the bypass valve 61, which is equivalent to closing the input port 41 and the bypass port 43 of the three-way connector 4, so that the enteric feeding tube 1 is only connected with the auxiliary connector 7 and the water-air tube 3, and the tube-passing fluid is injected into the water-air tube 3, and the material in the enteric feeding tube 1 is sucked from the auxiliary connector 7, until the enteric feeding tube 1 in communication with the auxiliary connector 7 and the water-air tube 3 is realized, and the suction from the auxiliary connector 7 is stopped;

[0059] S13, after step S12 is completed, the tube-passing liquid such as warm water or warm saline is injected into the enteric feeding tube 1 through the auxiliary connector 7 by means of the syringe, at the same time, the gas is injected into the water-air tube 3 by means of the syringe, so that the liquid and the gas are extruded to the middle and lower sections of the enteric feeding tube 1 at the same time. When the injection tube is used, the pulse injection method is adopted, and the suction reciprocating cycle is improved to improve the speed of tube-passing.

[0060] In the case of more serious blockage, the fluid cannot be injected through the water and gas pipe 3, and then step S12 is needed to inject the fluid into the water and gas pipe 3, and the auxiliary joint 7 is used to suck the intestinal feeding tube 1, so that the intestinal feeding tube 1 in the pharynx, esophagus and stomach is extruded by the fluid injected from the water and gas pipe 3 at one end, and the intestinal feeding tube 1 in the pharynx, esophagus and stomach is quickly unblocked (i.e. the intestinal feeding tube 1 in the section communicating with the auxiliary joint 7 and the water and gas pipe 3). When the intestinal feeding tube 1 is unblocked in this section, step S13 is used to inject the liquid for tube passage into the input end of the intestinal feeding tube 1, and the water and gas pipe 3 is used to inject the gas, so that the mixture of the gas and the liquid is quickly sent to the middle and lower sections of the intestinal feeding tube 1 close to the output end (i.e. the end of the intestinal feeding tube 1). Since the fluid for tube passage contains both the liquid and the gas, the gas has smaller resistance, and thus the gas is pushed farther, i.e. enters the end of the intestinal feeding tube 1 more quickly, and the gas is filled between the originally dense nutrient liquid, so that the viscosity of the nutrient liquid at the blockage position is reduced, and the probability of successful tube passage is greatly improved.

[0061] When the filter screen 5 is blocked, the pressure of the input pipe 8 is increased, and the pipe pressure monitor 82 alarms to remind the medical staff, and the medical staff performs the following operation:

[0062] S21, the second valve 11 is closed to block the continuous infusion of the intestinal feeding tube 1, the first valve 81 is closed, so that the input port 41 of the three-way joint 4 is equivalent to being closed, and the bypass valve 61 communicating with the three-way joint 4 is opened, so that the auxiliary joint 7 only communicates with the output port 42 of the three-way joint 4.

[0063] S22, the tube passage liquid is pumped into the nasogastric tube through the auxiliary joint 7, and the tube passage liquid impacts the filter screen 5 from the output port 42 of the three-way joint 4, and the substances left on the filter screen 5 are flushed into the bypass pipe 6, and the liquid mixed with the nutrient liquid intercepted by the filter screen 5 is sent into the infusion device 10 again to be used again, so as to avoid the loss of the nutrient liquid.

[0064] The embodiment makes the nutrient liquid pass through the filter screen 5 before entering the intestinal feeding tube 1 through steps S21 and S22, so as to avoid the case that the nutrient liquid is too viscous and contains large substances to quickly block the intestinal feeding tube 1, and the prevention effect on the possible blockage is achieved.

[0065] When the intestinal nutrition tube 1 is blocked, the water and gas tube 3 is only used to infuse the tube-passing gas or liquid, and the patient generally raises the head during the nutrition liquid infusion stage to ensure that the water and gas tube 3 is much cleaner than the intestinal nutrition tube 1, so that the water and gas tube 3 can be set smaller, so that the size of the entire nasojejunal tube does not change greatly, and at the same time, the pressure loss during the infusion of the tube-passing liquid from the water and gas tube 3 is small, the liquid sprayed from the water and gas tube 3 to the intestinal nutrition tube 1 has a high flow rate and impact force, to ensure the pipe flushing intensity in step S11, in step S11, the pipe flushing is directly performed on the end of the intestinal nutrition tube 1 most prone to blockage through the water and gas tube 3, to improve the efficiency of the blockage treatment, and also to avoid directly injecting the tube-passing liquid from the input end of the intestinal nutrition tube 1, which instead increases the burden in the intestinal nutrition tube 1 and increases the difficulty of blockage.

[0066] If serious blockage occurs, steps S12 and S13 can also be used to achieve the unblocking of the serious blockage and reduce the probability of unblocking.

[0067] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific embodiments and the like in the specification can be used to explain the content of the claims.

Claims

1. A nasojejunal tube comprising a jejunal feeding tube, characterized by: The water-gas pipe is used for injecting a pipe-through fluid into the enteral feeding tube when the enteral feeding tube is blocked, and the input end of the enteral feeding tube is connected with a filter; The filter comprises a tee joint and a filter screen, the tee joint comprises an input port, an output port and a bypass port, the input port is coaxial with the output port, the input port is used for the enteral feeding liquid to enter, the output port is communicated with the input end of the enteral feeding tube, the bypass port is at an acute angle with the output port, the filter screen separates the input port and the output port, and the filter screen is inclined towards the bypass port; the bypass port is communicated with a bypass pipe; the enteral feeding tube is further communicated with an auxiliary joint, and the auxiliary joint is communicated with the output port of the tee joint through the enteral feeding tube; The gastric decompression tube is shorter than the enteral feeding tube, both ends of the gastric decompression tube are provided with openings, and the position where the water-gas pipe is communicated with the enteral feeding tube is located at the end of the gastric decompression tube; The gastric decompression tube is located at one side of the enteral feeding tube and the water-gas pipe, the inner diameter of the water-gas pipe is smaller than the inner diameter of the enteral feeding tube, and the overall cross-section of the gastric decompression tube, the water-gas pipe and the enteral feeding tube is circular.

2. A method of clog management for a nasojejunal tube, the method comprising: The nasal-enteral tube of claim 1 is used, and the following steps are further included: When the filter screen is not blocked and the enteral feeding tube cannot continue to infuse the enteral feeding liquid, the following steps are performed: S11, the input end of the enteral feeding tube is closed, so that the enteral feeding tube no longer continues to input the enteral feeding liquid, and a fluid is injected into the enteral feeding tube through the water-gas pipe, if the fluid can be continuously injected, step A is performed, if the fluid cannot be continuously injected, steps S12 and S13 are performed; Step A, the amount of the fluid injected through the water-gas pipe is not less than 20 ml, after the injection is completed, the enteral feeding tube is opened to continue to infuse the enteral feeding liquid, if the enteral feeding liquid cannot be infused from the enteral feeding tube, step S12 is performed; S12, the input port and the bypass port of the tee joint are closed, the enteral feeding tube is only communicated with the auxiliary joint and the water-gas pipe, a fluid is injected into the water-gas pipe, and substances in the enteral feeding tube are sucked from the auxiliary joint until the enteral feeding tube is unblocked in the section communicated with the auxiliary joint and the water-gas pipe, and then the sucking from the auxiliary joint is stopped; S13, after step S12 is completed, a liquid is injected into the enteral feeding tube through the auxiliary joint, and a gas is injected into the water-gas pipe, so that the liquid and the gas are extruded to the middle and lower sections of the enteral feeding tube at the same time.

3. The method of claim 2, wherein the step of applying a treatment to the blocked tube is performed by a user. When the filter screen is blocked, the following steps are further included: S21, the continuous infusion of the enteral feeding tube is blocked, the input port of the tee joint is closed, the bypass pipe communicated with the tee joint is opened, and the auxiliary joint is only communicated with the output port of the tee joint; S22, a pipe-through liquid is pumped into the nasal-enteral tube through the auxiliary joint, the pipe-through liquid impacts the filter screen from the output port of the tee joint, and substances left on the filter screen are flushed into the bypass pipe and discharged.

4. The method of claim 3, wherein the step of applying a treatment to the blocked tube is performed by a user. The input port of the tee joint is communicated with an input pipe, a first valve is installed on the input pipe, a second valve is installed on the enteral feeding tube, and the auxiliary joint is located between the second valve and the output port of the tee joint.

5. The method of claim 4, wherein the step of applying a treatment to the blocked tube is performed by a user. A pipeline pressure monitor is installed on the input pipe, and the pipeline pressure monitor sends an alarm signal when the pressure in the input pipe is detected to exceed a preset value.

6. The method of clog management of a nasojejunal tube according to any one of claims 3-5, wherein, The bypass pipe is communicated with an infusion device used for infusing the enteral feeding liquid.

7. The method of clog management of a nasojejunal tube according to claim 6, wherein, The infusion device is an infusion device with a stirring function.

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