A visible intestinal obstruction catheter kit

Abstract

The present invention relates to the technical field of medical devices, and discloses a visible intestinal obstruction catheter kit, which includes an outer catheter and a catheter head end. A drainage tube is fixedly installed inside the outer catheter, and a balloon for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter. A gas blocking plate is fixedly installed on the outer wall of the drainage tube, and a variable connection unit is installed on one side of the gas blocking plate. By setting the variable connection unit, the water filling joint can control the inflation of the balloon and the release of the drug at the same time. After the medical staff drains and dredges the patient's intestinal obstruction through the intestinal obstruction catheter kit, normal saline can be further injected, so that the normal saline drives the extrusion balloon to expand. When the extrusion balloon expands, it will squeeze and drive the medicine storage rubber to expand appropriately, so that the medicine outlet holes opened on the medicine storage rubber are in an open state. When the extrusion balloon expands further, the liquid medicine inside the medicine storage rubber can be squeezed through the medicine outlet holes to the intestinal obstruction area for treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a visible intestinal obstruction catheter kit. Background Art

[0002] Intestinal obstruction refers to a disease in which intestinal contents (such as food, liquid, gas, etc.) cannot pass through the intestine normally due to mechanical or functional reasons, resulting in a series of symptoms and complications. A visible intestinal obstruction catheter kit is a medical device used for the diagnosis and treatment of intestinal obstruction, mainly used to relieve intestinal obstruction, drain intestinal contents, and assist in diagnosis. By draining the intestinal contents proximal to the obstruction through a catheter, the intestinal pressure is reduced and symptoms are alleviated. When a patient has intestinal obstruction, over time, bacteria in the obstruction area multiply excessively (such as secondary infection in fecal obstruction) or the intestinal wall becomes infected after ischemia. After the medical staff complete the drainage, they need to spray an antibiotic solution on the obstruction area by means of catheter perfusion.

[0003] Currently, the method of spraying medicine on the intestinal obstruction area of patients by catheter perfusion or oral administration of liquid medicine is used. Although the method of oral administration of liquid medicine is simpler, the utilization rate of the medicine is relatively low, especially when the patient is in a state of intestinal obstruction, the absorption rate of the medicine is even lower. While catheter perfusion can directly perfuse antibacterial drugs to the infected area through the catheter, which can increase the drug concentration in the infected area, effectively avoid the systemic absorption of oral drugs, and reduce the burden on the liver and kidneys or the risk of drug resistance. However, catheter irrigation still has the following problems: When using the catheter perfusion method, whether using the pressurized or direct perfusion method to spray the medicine on the intestinal obstruction area of the patient, it is impossible to well control the flow rate of the medicine. If the pressure is too high, the medicine acts on the intestinal obstruction area with a large pressure, which may cause perforation due to excessive pressure. If irrigation is used, some of the liquid medicine cannot completely enter the intestinal obstruction area of the patient, resulting in some medicine remaining in the catheter and causing waste. Moreover, when the perfusion speed is relatively fast, perforation will also occur. Summary of the Invention

[0004] In view of the problem in the prior art that perforation may occur when spraying medicine on the intestinal obstruction area of a patient by the pressurized or direct perfusion method if the pressure is too high or the perfusion speed is relatively fast, a visible intestinal obstruction catheter kit is proposed.

[0005] The present application provides a visible intestinal obstruction catheter kit, and its purpose is: by setting a variable connection unit, the water filling connector can control the inflation of the balloon and the release of drugs at the same time. After the medical staff drain and dredge the patient's intestinal obstruction through the intestinal obstruction catheter kit, normal saline can be further injected to drive the extrusion balloon to expand. When the extrusion balloon expands, it will drive the storage rubber to expand appropriately, so that the medicine outlet holes opened on the storage rubber are in an open state. When the extrusion balloon expands further, the liquid medicine inside the storage rubber can be extruded through the medicine outlet holes to the intestinal obstruction area for treatment.

[0006] The technical solution of the present invention is: a visible intestinal obstruction catheter kit, including an outer catheter and a catheter head end. A drainage tube is fixedly installed inside the outer catheter, and a balloon for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter. A gas blocking plate is fixedly installed on the outer wall of the drainage tube, and a variable connection unit is installed on one side of the gas blocking plate;

[0007] The variable connection unit includes a communication hole opened on the side wall of the outer catheter. A connecting plate is fixedly installed on the inner wall of the balloon, and a movable plate is fixedly installed at the lower end of the connecting plate. Two communication plates are fixedly installed at the lower ends of both sides of the movable plate. Two ventilation holes are opened on the gas blocking plate, and cooperation holes are opened on both communication plates. The area between the outer catheter and the drainage tube is divided into a first liquid chamber and a second liquid chamber by the gas blocking plate, and a medicine application component is installed on the side wall of the outer catheter;

[0008] The movable plate includes an initial position and a set position. When the movable plate is in the initial position, the first liquid chamber and the second liquid chamber are in a separated state, and the first liquid chamber is in communication with the inside of the balloon. When the movable plate is in the set position, the first liquid chamber and the second liquid chamber are in communication, and the first liquid chamber is in a separated state from the inside of the balloon.

[0009] Further, the medicine application component includes an extrusion balloon fixedly installed between the outer catheter and the catheter head end, and a storage rubber fixedly installed on the outer wall of the outer catheter. The extrusion balloon is located inside the storage rubber, and the inside of the extrusion balloon is in communication with the second liquid chamber. Both the balloon and the extrusion balloon are expanded by injecting normal saline.

[0010] Further, a plurality of medicine outlet holes for spraying drugs are evenly distributed on the side wall of the storage rubber. The storage rubber is made of high-elasticity silicone rubber, and the area between the storage rubber and the extrusion balloon is a medicine storage cavity.

[0011] Further, a partition plate is fixedly installed inside the drainage tube, and the partition plate divides the inside of the drainage tube into a flushing cavity and a drainage cavity.

[0012] Furthermore, a waterproof housing is fixedly installed on the outer wall of the head end of the catheter. A micro camera is embedded and encapsulated in the waterproof housing, and the micro camera is located at the front end of the head end of the catheter.

[0013] Furthermore, a multi-connection catheter is fixedly installed on the side wall of one end of the outer catheter away from the head end of the catheter. A flushing joint, a guiding joint, and a water filling joint are respectively fixedly connected to the multi-connection catheter, and caps are threadedly installed at the ports of the flushing joint, the guiding joint, and the water filling joint.

[0014] Furthermore, a drainage joint is fixedly installed at one end of the drainage tube. The flushing joint is fixedly communicated with the flushing cavity, and the drainage joint is fixedly communicated with the drainage cavity.

[0015] Furthermore, a guide wire is placed inside the drainage cavity of the drainage tube. The direction of the guide wire can be adjusted. After the head end of the catheter enters the stomach, the direction is adjusted and inserted into the pylorus and then into the duodenum.

[0016] Furthermore, the connecting plate is made of rubber material, and the movable plate is made of hospital plastic material.

[0017] Advantages of the present invention:

[0018] 1. By setting the variable connection unit, when medical staff relieve the patient's intestinal obstruction through the catheter, a certain amount of normal saline can be normally injected, so that the normal saline directly enters the balloon through the first liquid chamber, causing the balloon to expand and then fixing the head end of the catheter at one end of the catheter in the intestinal obstruction area of the patient to relieve the patient's intestinal obstruction.

[0019] 2. By setting the medicine application component, after the patient's intestinal obstruction is relieved, medical staff can further control the injection of physiological liquid medicine. When the balloon expands to a certain extent, the first liquid chamber is communicated with the second liquid chamber, and the normal saline enters the extrusion airbag, causing the extrusion airbag to expand and drive the storage rubber to expand appropriately. When the storage rubber expands to a certain extent, the medicine outlet holes opened above it are in an open state. Further expansion of the extrusion airbag can squeeze the liquid medicine inside the storage rubber through the medicine outlet holes to the infected area of the patient to complete the spraying treatment.

[0020] 3. By controlling the amount of normal saline injected, the amount of liquid medicine sprayed on the infected area of the patient can be controlled. By controlling the number of times of normal saline injection, the infected area in the patient's intestine can be sprayed multiple times, effectively improving the applicability and flexibility of the present invention. At the same time, the area between the inner wall of the outer catheter and the outer wall of the drainage tube controls the expansion of the balloon and the medicine application of the storage rubber at the same time. There is no need to additionally install pipelines. While ensuring normal control of medicine application, the thickness of the catheter will not be increased, and the discomfort of the patient during use can be relieved. Description of the drawings

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the first perspective of the present invention;

[0022] Figure 2 Schematic diagram of the partial sectional structure of the outer catheter of the present invention;

[0023] Figure 3 Schematic diagram of the installation structure of the extrusion balloon of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the variable connection unit of the present invention;

[0025] Figure 5 Schematic diagram of the internal structure of the balloon of the present invention;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the second perspective structure;

[0027] Figure 7 Schematic diagram of the medicine application component structure of the present invention;

[0028] Figure 8 Schematic diagram of the installation structure of the partition board of the present invention.

[0029] In the figure:

[0030] 1. Outer catheter; 2. Catheter head end; 3. Drainage tube; 4. Balloon; 5. Air baffle; 6. Communication hole; 7. Connection plate; 8. Movable plate; 9. Communication plate; 10. Ventilation hole; 11. Matching hole; 12. First liquid chamber; 13. Second liquid chamber; 14. Extrusion balloon; 15. Medicine storage rubber; 16. Medicine outlet hole; 17. Medicine storage cavity; 18. Partition board; 19. Flushing cavity; 20. Drainage cavity; 21. Waterproof housing; 22. Miniature camera; 23. Multi-connection catheter; 24. Flushing joint; 25. Guide joint; 26. Water filling joint; 27. Sealing cover; 28. Drainage joint; 29. Guide wire. Detailed implementation manners

[0031] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0032] Example 1, referring to Figures 1-6 , which is the first embodiment of the present invention, provides a visible intestinal obstruction catheter kit, including an outer catheter 1 and a catheter head end 2. A drainage tube 3 is fixedly installed inside the outer catheter 1, and a balloon 4 for fixing the outer catheter 1 is fixedly installed on the outer wall of the outer catheter 1. An air baffle 5 is fixedly installed on the outer wall of the drainage tube 3, and a variable connection unit is installed on one side of the air baffle 5;

[0033] The variable connection unit includes a communication hole 6 opened on the side wall of the outer catheter 1. A connecting plate 7 is fixedly installed on the inner wall of the balloon 4. The lower end of the connecting plate 7 is fixedly installed with a movable plate 8. Two communication plates 9 are fixedly installed at the lower ends on both sides of the movable plate 8. Two ventilation holes 10 are opened on the air baffle 5. Matching holes 11 are opened on both of the two communication plates 9. The area between the outer catheter 1 and the drainage tube 3 is separated into a first liquid chamber 12 and a second liquid chamber 13 by the air baffle 5. A medicine application assembly is installed on the side wall of the outer catheter 1;

[0034] The movable plate 8 includes an initial position and a set position. When the movable plate 8 is in the initial position, the first liquid chamber 12 and the second liquid chamber 13 are in a separated state, and the first liquid chamber 12 is in communication with the inside of the balloon 4. When the movable plate 8 is in the set position, the first liquid chamber 12 and the second liquid chamber 13 are in a communicating state, and the first liquid chamber 12 is in a separated state from the inside of the balloon 4. The connecting plate 7 is made of rubber material, and the movable plate 8 is made of a medical plastic with a relatively light mass and a relatively low cost.

[0035] Specifically, in the prior art, the area between the outer catheter 1 and the drainage tube 3 is used to control the inflation of the balloon 4. After the catheter tip 2 reaches the intestinal obstruction area, it is a prerequisite for medical staff to drain the obstruction that the outer catheter 1 is fixed. Therefore, the medical staff inject normal saline into the inside of the balloon 4, causing the balloon 4 to expand. The expanded balloon 4 cooperates with the intestinal inner wall of the patient to support the outer catheter 1 and the catheter tip 2. The function of the variable connection unit is: without additionally adding a pipeline, the area between the inner wall of the outer catheter 1 and the inner wall of the drainage tube 3 can control the inflation of the balloon 4 and also control the medicine application of the medicine application assembly.

[0036] Under normal conditions, the balloon 4 is in a relaxed state, that is, the movable plate 8 is located at the initial position (attached to the inner wall of the drainage tube 3). At this time, since the connecting plate 9 blocks one side of the ventilation hole 10 and seals it, the first liquid chamber 12 is only connected to the inside of the balloon 4 and is not connected to the inside of the second liquid chamber 13. At this time, the staff injects a certain amount of physiological saline, and the physiological saline will enter the inside of the balloon 4, causing the balloon 4 to expand and support the outer catheter 1, and then perform the subsequent work of draining the intestinal obstruction blockage. During the expansion process of the balloon 4, its outer wall will move outward, and during the movement, it will drive the movable plate 8 to move synchronously through the connecting plate 7. When the balloon 4 expands to an appropriate size, the connecting plate 7 drives the movable plate 8 just to move to the lower end of the communication hole 6, so that the movable plate 8 just closes the communication hole 6. And when the movable plate 8 is in close contact with the communication hole 6, the ventilation hole 10 and the matching hole 11 cooperate with each other, so that the first liquid chamber 12 is connected to the second liquid chamber 13 through the ventilation hole 10 and the matching hole 11. If physiological saline is continuously injected subsequently, the physiological saline will not enter the inside of the balloon 4 again, but directly enter the inside of the second liquid chamber 13.

[0037] During use, after finding the intestinal obstruction area of the patient, the distal end 2 of the catheter is directed at the front end of the intestinal obstruction, and physiological saline is injected into the first liquid chamber 12 through the water filling joint 26. The physiological saline entering the first liquid chamber 12 enters the inside of the balloon 4 through the communication hole 6, causing the balloon 4 to expand. During the expansion process of the balloon 4, its inside will drive the movable plate 8 to move synchronously through the connecting plate 7. When the balloon 4 expands to the maximum distance (when the movable plate 8 is closely attached to the lower end of the communication hole 6), the expanded balloon 4 cooperates with the inner wall of the patient's intestine to fix the outer catheter 1 and the distal end 2 of the catheter at the front end of the intestinal obstruction. At the same time, when the movable plate 8 is closely attached to the lower part of the communication hole 6, the matching hole 11 and the ventilation hole 10 are in a coincident state. If the medical staff injects physiological saline, the physiological saline will directly enter the inside of the second liquid chamber 13.

[0038] Example 2, refer to Figure 4 and Figure 7 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the medicine application component includes an extrusion balloon 14 fixedly installed between the outer catheter 1 and the distal end 2 of the catheter, and a medicine storage rubber 15 fixedly installed on the outer wall of the outer catheter 1. The extrusion balloon 14 is located inside the medicine storage rubber 15, and the inside of the extrusion balloon 14 is connected to the second liquid chamber 13. Both the balloon 4 and the extrusion balloon 14 are expanded by injecting physiological saline. A plurality of medicine outlet holes 16 for spraying medicine are evenly distributed on the side wall of the medicine storage rubber 15. The medicine storage rubber 15 is made of high-elasticity silicone rubber, and the area between the medicine storage rubber 15 and the extrusion balloon 14 is the medicine storage cavity 17.

[0039] Specifically, the extrusion airbag 14 is located inside the medicine storage rubber 15. Medical staff can inject the required medicine into the inside of the medicine storage cavity 17 through a syringe for storage. The purpose of making the medicine storage rubber 15 with high-elasticity silicone rubber is that when the medicine outlet hole 16 is opened on the medicine storage rubber 15, as long as the thickness of the medicine storage rubber 15 is thick enough and has high elasticity, it can be ensured that when the medicine storage rubber 15 is in a relaxed state, the medicine outlet hole 16 on it is equivalent to being in a closed state. At this time, the liquid medicine inside the medicine storage cavity 17 will not flow out through the medicine outlet hole 16. When the medicine storage rubber 15 expands, the medicine outlet hole 16 at its upper end will gradually become larger due to the expansion of the medicine storage rubber 15. During the process of becoming larger, the medicine outlet hole 16 is equivalent to being in an open state. At this time, spraying medicine can be carried out through the medicine outlet hole 16. The principle is as follows:

[0040] Elastic deformation mechanism of rubber:

[0041] Relaxed state (not stressed): The rubber molecular chains are in a natural curly state. The internal contraction force of the material causes the elastomer around the small hole to gather towards the center, resulting in the passive closure of the small hole. At this time, the cavity may only appear as a gap.

[0042] Expanded state (under tensile or compressive force): Under the action of an external force, the rubber molecular chains are stretched, and the overall material deforms. The area around the small hole expands radially due to stress concentration, resulting in a significant increase in the hole diameter and forming a visible open channel.

[0043] The extrusion airbag 14 is used to trigger the medicine application component. When medical staff need to apply medicine, continue to inject physiological saline into the inside of the first liquid chamber 12. The physiological saline enters the second liquid chamber 13 and directly enters the inside of the extrusion airbag 14, causing the extrusion airbag 14 to expand inside the medicine storage rubber 15. During the expansion process of the extrusion airbag 14, it will first drive the medicine storage rubber 15 to expand to a certain extent. When the extrusion airbag 14 expands and gives enough pressure to the medicine storage rubber 15, the extrusion airbag 14 can squeeze the liquid medicine inside the medicine storage rubber 15 out of the inside of the medicine storage rubber 15 through the medicine outlet hole 16 and perform drug treatment on the intestinal obstruction infection area of the patient (drug treatment occurs after the intestinal obstruction is relieved and cleaned up to prevent the flushing from washing away the medicine and affecting the subsequent treatment effect).

[0044] During use, after cleaning is completed, medical staff inject physiological saline into the water filling joint 26. Since the movable plate 8 closely adheres to the lower end of the communication hole 6 during the inflation process of the balloon 4, the fitting hole 11 on the movable plate 8 coincides with the ventilation hole 10. At this time, the first liquid chamber 12 is communicated with the second liquid chamber 13, and the injected physiological saline enters the interior of the second liquid chamber 13 and directly enters the interior of the extrusion balloon 14. While the extrusion balloon 14 is inflating, it generates an outward extrusion force on the inner wall of the medicine storage rubber 15. Under the action of the extrusion force, the medicine storage rubber 15 expands. During the expansion process, the medicine outlet hole 16 on the medicine storage rubber 15 becomes larger under the action of stretching. With the further extrusion of the extrusion balloon 14, the extrusion balloon 14 can extrude the medicine inside the medicine storage cavity 17 and directly act on the intestinal obstruction area. Medical staff can control the amount of medicine released by the medicine storage rubber 15 and the number of times of spraying medicine by the amount and frequency of injecting physiological saline.

[0045] The remaining structure is the same as that of Embodiment 1.

[0046] Embodiment 3, referring to Figure 1 and Figure 8 , is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that a partition plate 18 is fixedly installed inside the drainage tube 3, and the partition plate 18 divides the interior of the drainage tube 3 into a flushing chamber 19 and a drainage chamber 20. A waterproof housing 21 is fixedly installed on the outer wall of the catheter head end 2, and a micro camera 22 is embedded and encapsulated inside the waterproof housing 21. The micro camera 22 is located at the front end of the catheter head end 2. A multi-connection catheter 23 is fixedly installed on the side wall of the outer catheter 1 away from the catheter head end 2. A flushing joint 24, a guiding joint 25, and a water filling joint 26 are respectively fixedly connected to the multi-connection catheter 23, and caps 27 are threadedly installed at the ports of the flushing joint 24, the guiding joint 25, and the water filling joint 26. A drainage joint 28 is fixedly installed at one end of the drainage tube 3. The flushing joint 24 is fixedly communicated with the flushing chamber 19, and the drainage joint 28 is fixedly communicated with the drainage chamber 20. A guide wire 29 is placed inside the drainage chamber 20 of the drainage tube 3, and the direction of the guide wire 29 can be adjusted. After the catheter head end 2 enters the stomach, the direction can be adjusted to insert into the pylorus and enter the duodenum.

[0047] Specifically, the interior of the drainage tube 3 is divided into a flushing chamber 19 and a drainage chamber 20. The flushing chamber 19 is used to introduce physiological saline into the intestinal obstruction area to flush the blockage. The drainage chamber 20 is used to drain the flushed blockage and discharge it from the human body through the drainage joint 28. Flushing and drainage are carried out simultaneously. Drainage can immediately discharge the physiological saline and the flushed blockage that enter the human body, preventing the accumulation of physiological saline and causing discomfort to the patient.

[0048] The guide wire 29 is used to guide the movement of the outer catheter 1 inside the human body. The guide wire 29 is located inside the outer catheter 1. The part of the guide wire 29 that first enters the patient's body is in a certain area, and then the medical staff introduces the outer catheter 1 into the next area according to the position and angle of the guide wire 29 until it enters the interior of the duodenum.

[0049] The micro camera 22 transmits the video of the area around the catheter tip 2 to the medical staff in real time. The medical staff can observe the situation inside the patient through the transmitted information, can observe the situation inside the patient more intuitively, and effectively helps the medical staff to evaluate the patient's physical condition. At the same time, the waterproof housing 21 is used to protect the micro camera 22 to prevent water from entering the micro camera 22 during the flushing process and causing damage.

[0050] During use, the medical staff inserts the outer catheter 1 into the body through the patient's nasal cavity and inserts the guide wire 29 while observing through the picture transmitted by the micro camera 22. After the guide wire 29 enters the designated position, under the guidance of the guide wire 29, the outer catheter 1 is synchronously inserted into the designated position. When the catheter tip 2 enters the duodenum of the patient, the area of the patient's intestinal obstruction is searched. After finding the area where the patient has intestinal obstruction, the catheter tip 2 is aligned with the front end of the intestinal obstruction, and normal saline is injected into the first liquid chamber 12 through the water filling joint 26. The normal saline that enters the first liquid chamber 12 enters the inside of the balloon 4 through the communication hole 6, causing the balloon 4 to expand. During the expansion process of the balloon 4, the movable plate 8 is driven to move synchronously through the connecting plate 7 inside it. When the balloon 4 expands to the maximum distance (when the movable plate 8 is closely attached to the lower end of the communication hole 6), the expanded balloon 4 cooperates with the inner wall of the patient's intestine to fix the outer catheter 1 and the catheter tip 2 at the front end of the intestinal obstruction. After the fixation of the outer catheter 1 and the catheter tip 2 is completed, the medical staff injects normal saline into the flushing chamber 19 through the flushing joint 24. The normal saline in the flushing chamber 19 directly acts on the intestinal obstruction area to flush the blockage. At the same time, the drainage joint 28 drains the normal saline and the blockage that enter the patient's body out of the human body, and continuous operation is carried out until the intestinal obstruction is relieved.

[0051] The remaining structure is the same as that of Embodiment 2.

[0052] Combining Embodiments 1-3, the working principle of the present invention is as follows:

[0053] Insertion of the outer catheter 1: The medical staff inserts the outer catheter 1 into the body through the patient's nasal cavity and inserts the guide wire 29 while observing through the picture transmitted by the micro camera 22. After the guide wire 29 enters the designated position, under the guidance of the guide wire 29, the outer catheter 1 is synchronously inserted into the designated position. When the catheter tip 2 enters the duodenum of the patient, the area of the patient's intestinal obstruction is searched.

[0054] Fixation of the outer catheter 1: After finding the intestinal obstruction area of the patient, align the distal end 2 of the catheter with the front end of the intestinal obstruction. Inject normal saline into the inner part of the first liquid chamber 12 through the water filling connector 26. The normal saline entering the inner part of the first liquid chamber 12 enters the inner part of the balloon 4 through the communication hole 6, causing the balloon 4 to expand. During the expansion of the balloon 4, the movable plate 8 will be driven to move synchronously through the connecting plate 7 inside it. When the balloon 4 expands to the maximum distance (when the movable plate 8 is closely attached to the lower end of the communication hole 6), the expanded balloon 4 cooperates with the inner wall of the patient's intestine to fix the outer catheter 1 and the distal end 2 of the catheter at the front end of the intestinal obstruction.

[0055] Relief of intestinal obstruction: After completing the fixation of the outer catheter 1 and the distal end 2 of the catheter, the medical staff inject normal saline into the inner part of the flushing chamber 19 through the flushing connector 24. The normal saline in the flushing chamber 19 directly acts on the intestinal obstruction area to flush the blockage. At the same time, the drainage connector 28 drains the normal saline and the blockage that enter the patient's body out of the human body. Keep operating until the relief of the intestinal obstruction is completed.

[0056] Medication of the intestinal obstruction area: After the cleaning is completed, the medical staff inject normal saline into the water filling connector 26. Since the movable plate 8 is closely attached to the lower end of the communication hole 6 during the expansion of the balloon 4, the matching hole 11 on the movable plate 8 coincides with the ventilation hole 10. At this time, the first liquid chamber 12 is connected to the second liquid chamber 13. The injected normal saline enters the inner part of the second liquid chamber 13 and directly enters the inner part of the extrusion airbag 14. When the extrusion airbag 14 expands, it generates an outward extrusion force on the inner wall of the medicine storage rubber 15. Under the action of the extrusion force, the medicine storage rubber 15 expands. During the expansion process, the medicine outlet hole 16 on the medicine storage rubber 15 becomes larger under the action of stretching. With the further extrusion of the extrusion airbag 14, the extrusion airbag 14 can extrude the medicine in the medicine storage chamber 17 and directly act on the intestinal obstruction area. The medical staff can control the dosage of the medicine released by the medicine storage rubber 15 and the number of times of spraying medicine by the amount and frequency of injecting normal saline.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A visible intestinal obstruction catheter kit, comprising an outer catheter and a catheter head end. A drainage tube is fixedly installed inside the outer catheter, and a balloon for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter. It is characterized in that: A gas baffle is fixedly installed on the outer wall of the drainage tube, and a variable connection unit is installed on one side of the gas baffle; The variable connection unit includes a communication hole opened on the side wall of the outer catheter. A connecting plate is fixedly installed on the inner wall of the balloon. A movable plate is fixedly installed at the lower end of the connecting plate. Two communicating plates are fixedly installed at the lower ends of both sides of the movable plate. Two ventilation holes are opened on the gas baffle. Matching holes are opened on both of the communicating plates. The area between the outer catheter and the drainage tube is divided into a first liquid chamber and a second liquid chamber by the gas baffle. A medicine application component is installed on the side wall of the outer catheter; The movable plate includes an initial position and a set position. When the movable plate is in the initial position, the first liquid chamber and the second liquid chamber are in a separated state, and the first liquid chamber is in communication with the inside of the balloon. When the movable plate is in the set position, the first liquid chamber and the second liquid chamber are in communication, and the first liquid chamber is in a separated state from the inside of the balloon.

2. The visual intestinal obstruction catheter kit according to claim 1, characterized in that: The medicine application component includes an extrusion balloon fixedly installed between the outer catheter and the catheter head end, and a medicine storage rubber fixedly installed on the outer wall of the outer catheter. The extrusion balloon is located inside the medicine storage rubber. The inside of the extrusion balloon is in communication with the second liquid chamber. Both the balloon and the extrusion balloon are expanded by injecting physiological saline.

3. The visual intestinal obstruction catheter kit according to claim 2, wherein: A plurality of medicine outlet holes for spraying medicine are uniformly distributed on the side wall of the medicine storage rubber. The medicine storage rubber is made of high-elasticity silicone rubber. The area between the medicine storage rubber and the extrusion balloon is a medicine storage cavity.

4. The visual intestinal obstruction catheter kit according to claim 3, wherein: A partition plate is fixedly installed inside the drainage tube. The partition plate divides the inside of the drainage tube into a flushing cavity and a drainage cavity.

5. The visual intestinal obstruction catheter kit according to claim 1, wherein: A waterproof shell is fixedly installed on the outer wall of the catheter head end. A micro camera is embedded and encapsulated inside the waterproof shell. The micro camera is located at the front end of the catheter head end.

6. The visual intestinal obstruction catheter kit according to claim 1, characterized in that: A multi-connection catheter is fixedly installed on the side wall of the outer catheter away from the catheter head end. A flushing joint, a guiding joint and a water filling joint are respectively fixedly connected to the multi-connection catheter. Sealing caps are threadedly installed at the ports of the flushing joint, the guiding joint and the water filling joint.

7. The visual intestinal obstruction catheter kit according to claim 6, characterized in that: A drainage joint is fixedly installed at one end of the drainage tube. The flushing joint is fixedly communicated with the flushing cavity. The drainage joint is fixedly communicated with the drainage cavity.

8. The visual intestinal obstruction catheter kit according to claim 1, wherein: A guide wire is placed inside the drainage cavity of the drainage tube. The direction of the guide wire can be adjusted. After the catheter head end enters the stomach, the direction is adjusted and inserted into the pylorus and then into the duodenum.

9. The visual intestinal obstruction catheter kit according to claim 1, wherein: The connecting plate is made of rubber material. The movable plate is made of hospital plastic material.

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