Visual intestinal obstruction catheter kit

Abstract

The invention relates to the technical field of medical equipment, and discloses a visual intestinal obstruction catheter suite which comprises an outer catheter and a catheter head end, a drainage tube is fixedly installed in the outer catheter, a balloon used for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter, an air baffle is fixedly installed on the outer wall of the drainage tube, and an air outlet is formed in the outer wall of the air baffle. And a variable connection unit is mounted on one side of the gas baffle. By arranging the variable connection unit, the water filling connector can control expansion of the balloon and release of medicine at the same time, after a medical worker conducts drainage and dredging on intestinal obstruction of a patient through the intestinal obstruction catheter kit, normal saline can be further injected, the normal saline drives the extrusion air bag to expand, and when the extrusion air bag expands, the medicine is released. When the extrusion air bag is extruded to drive the medicine storage rubber to properly expand, the medicine outlet hole formed in the medicine storage rubber is in an open state, and when the extrusion air bag is further expanded, liquid medicine in the medicine storage rubber can be extruded to an intestinal obstruction area through the medicine outlet hole to treat the intestinal obstruction area.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a visual 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, leading to a series of symptoms and complications. The visual intestinal obstruction catheter kit is a medical device used to diagnose and treat intestinal obstruction. It is mainly used to relieve intestinal obstruction, drain intestinal contents and assist in diagnosis. The intestinal contents proximal to the obstruction are drained through the catheter to reduce intestinal pressure and relieve symptoms. When a patient has intestinal obstruction, over time, bacteria in the obstruction area overgrow (such as secondary infection of fecal obstruction) or infection after intestinal wall ischemia. After completing the drainage, medical staff need to spray antibiotic solution on the obstruction area by catheter perfusion; The existing method of spraying drugs on the intestinal obstruction area of ​​patients is through catheter perfusion or oral drug solution. Although the oral drug solution method is simpler, the utilization rate of the drug is low, especially when the patient is in the state of intestinal obstruction, the absorption rate of the drug is even lower. The use of catheter perfusion can directly perfuse the antibacterial drug into 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 the drug is sprayed on the intestinal obstruction area of ​​the patient through the catheter by pressurization or direct perfusion, the flow rate of the drug cannot be well controlled. If the pressurized pressure is too high, the drug acts on the intestinal obstruction area with a large pressure, which may cause perforation due to excessive pressure. If irrigation is used, part of the drug solution cannot completely enter the intestinal obstruction area of ​​the patient, so that part of the drug remains in the catheter and causes waste. Moreover, when the perfusion speed is fast, perforation may also occur. Summary of the invention

[0003] In view of the problem in the prior art that spraying drugs on the intestinal obstruction area of ​​a patient by pressurization or direct infusion may cause perforation if the pressure is too high or the infusion speed is too fast, a visual intestinal obstruction catheter kit is proposed.

[0004] The present application provides a visual intestinal obstruction catheter kit, the purpose of which is: by setting a variable connection unit, the water-filled joint can simultaneously control the expansion of the balloon and the release of the drug. After the medical staff drains and clears the patient's intestinal obstruction through the intestinal obstruction catheter kit, they can further inject normal saline, so that the normal saline drives the squeezing airbag to expand. When the squeezing airbag expands, it squeezes and drives the drug storage rubber to expand appropriately, so that the drug outlet hole opened on the drug storage rubber is in an open state. When the squeezing airbag further expands, the drug liquid inside the drug storage rubber can be squeezed through the drug outlet hole to the intestinal obstruction area to treat it.

[0005] The technical solution of the present invention is: a visual intestinal obstruction catheter kit, comprising an outer catheter and a catheter head end, a drainage tube is fixedly installed inside the outer catheter, a balloon for fixing the outer catheter is fixedly installed on the outer wall of the outer catheter, an air baffle is fixedly installed on the outer wall of the drainage tube, and a variable connection unit is installed on one side of the air baffle; The variable connection unit includes a connecting hole provided 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 on the lower end of the connecting plate, two connecting plates are fixedly installed on the lower ends of both sides of the movable plate, two vent holes are provided on the air baffle plate, matching holes are provided on the two connecting 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 air baffle plate, and a drug 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 located at the initial position, the first liquid chamber and the second liquid chamber are in a separated state, and the first liquid chamber and the interior of the balloon are in a connected state. When the movable plate is located at the set position, the first liquid chamber and the second liquid chamber are in a connected state, and the first liquid chamber and the interior of the balloon are in a separated state.

[0006] Furthermore, the drug application component includes an extrusion airbag fixedly installed between the outer catheter and the catheter head end, and a drug storage rubber fixedly installed on the outer wall of the outer catheter. The extrusion airbag is located inside the drug storage rubber, and the interior of the extrusion airbag is connected to the second liquid chamber. The balloon and the extrusion airbag are both expanded by injecting physiological saline.

[0007] Furthermore, a plurality of drug outlet holes for spraying drugs are evenly distributed on the side wall of the drug storage rubber, the drug storage rubber is made of high-resilience silicone rubber, and the area between the drug storage rubber and the extrusion airbag is the drug storage cavity.

[0008] Furthermore, 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.

[0009] Furthermore, a waterproof shell is fixedly mounted on the outer wall of the catheter head end, a miniature camera is embedded and packaged in the waterproof shell, and the miniature camera is located at the front end of the catheter head end.

[0010] Furthermore, a multi-connected catheter is fixedly installed on the side wall of one end of the outer catheter away from the catheter head end, and a flushing joint, a guide joint and a water filling joint are respectively fixedly connected to the multi-connected catheter, and sealing covers are threadedly installed at the ports of the flushing joint, the guide joint and the water filling joint.

[0011] Furthermore, a drainage joint is fixedly installed at one end of the drainage tube, the flushing joint is fixedly connected to the flushing cavity, and the drainage joint is fixedly connected to the drainage cavity.

[0012] Furthermore, a guide wire is placed inside the drainage cavity of the drainage tube, and the direction of the guide wire can be adjusted. After the catheter tip enters the stomach, the direction is adjusted and inserted into the pylorus and into the duodenum.

[0013] Furthermore, the connecting plate is made of rubber material, and the movable plate is made of hospital plastic material.

[0014] Beneficial effects of the present invention: 1. By setting up the variable connection unit, when the medical staff relieves the intestinal obstruction of the patient 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, so that the balloon expands and the catheter head end at one end of the catheter is fixed in the intestinal obstruction area of ​​the patient, so as to relieve the intestinal obstruction of the patient.

[0015] 2. By setting up the drug application component, after the patient's intestinal obstruction is contacted, the medical staff can further control the injection of physiological medicine. When the balloon expands to a certain extent, the first liquid chamber is connected to the second liquid chamber, and the physiological saline enters the squeezing airbag, causing the squeezing airbag to expand and drive the medicine storage rubber to expand appropriately. When the medicine storage rubber expands to a certain extent, the medicine outlet hole opened on the top of it is in an open state. The squeezing airbag further expands to squeeze the medicine liquid inside the medicine storage rubber through the medicine outlet hole to the patient's infected area, thereby completing the spraying treatment.

[0016] 3. By controlling the amount of saline solution injected, the amount of medicine sprayed on the infected area of ​​the patient can be controlled. By controlling the number of times the saline solution is injected, the infected area in the patient's intestine can be sprayed multiple times, which effectively improves 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 balloon expansion and the drug application of the drug storage rubber. There is no need to add additional pipelines, which ensures that the drug application can be controlled normally without increasing the thickness of the catheter, thereby alleviating the discomfort of the patient during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention; Figure 2 It is a schematic diagram of a partial cross-sectional structure of an outer catheter of the present invention; Figure 3 It is a schematic diagram of the installation structure of the extrusion airbag of the present invention; Figure 4 It is a schematic diagram of the structure of the variable connection unit of the present invention; Figure 5 It is a schematic diagram of the internal structure of the balloon of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the second viewing angle structure; Figure 7 It is a schematic diagram of the structure of the medicine applying component of the present invention; Figure 8 It is a schematic diagram of the partition plate installation structure of the present invention.

[0018] In the figure: 1. External catheter; 2. Catheter head; 3. Drainage tube; 4. Balloon; 5. Air baffle; 6. Connecting hole; 7. Connecting plate; 8. Movable plate; 9. Connecting plate; 10. Vent hole; 11. Matching hole; 12. First liquid chamber; 13. Second liquid chamber; 14. Extrusion airbag; 15. Drug storage rubber; 16. Drug outlet hole; 17. Drug storage chamber; 18. Partition plate; 19. Flushing chamber; 20. Drainage chamber; 21. Waterproof housing; 22. Miniature camera; 23. Multi-connected catheter; 24. Flushing connector; 25. Guide connector; 26. Water filling connector; 27. Cap; 28. Drainage connector; 29. ​​Guide wire. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] Example 1, reference Figure 1-Figure 6 , which is the first embodiment of the present invention, provides a visual intestinal obstruction catheter kit, including an outer catheter 1 and a catheter head 2, a drainage tube 3 is fixedly installed inside the outer catheter 1, 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; The variable connection unit includes a connecting hole 6 provided on the side wall of the outer catheter 1, a connecting plate 7 is fixedly installed on the inner wall of the balloon 4, a movable plate 8 is fixedly installed on the lower end of the connecting plate 7, two connecting plates 9 are fixedly installed on the lower ends of both sides of the movable plate 8, two vent holes 10 are provided on the air baffle plate 5, and matching holes 11 are provided on the two connecting plates 9. The area between the outer catheter 1 and the drainage tube 3 is divided into a first liquid chamber 12 and a second liquid chamber 13 by the air baffle plate 5, and a medicine application component is installed on the side wall of the outer catheter 1; The movable plate 8 includes an initial position and a set position. When the movable plate 8 is at 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 and the inside of the balloon 4 are in a connected state. When the movable plate 8 is at the set position, the first liquid chamber 12 and the second liquid chamber 13 are in a connected state, and the first liquid chamber 12 and the inside of the balloon 4 are in a separated state. The connecting plate 7 is made of rubber material, and the movable plate 8 is made of light-weight, low-cost medical plastic.

[0021] Specifically, in the prior art, the area between the outer catheter 1 and the drainage tube 3 is used to control the expansion of the balloon 4. When the catheter head end 2 reaches the intestinal obstruction area, the medical staff needs to drain the obstruction on the premise that the outer catheter 1 is fixed. Therefore, the medical staff injects normal saline into the balloon 4 to expand the balloon 4. The expanded balloon 4 cooperates with the patient's intestinal wall to support the outer catheter 1 and the catheter head end 2. The function of the variable connection unit is: without adding additional pipelines, the area between the inner wall of the outer catheter 1 and the inner wall of the drainage tube 3 can control the expansion of the balloon 4 while also controlling the application of medicine in the medicine application component.

[0022] Under normal conditions, the balloon 4 is in a relaxed state, that is, the movable plate 8 is in the initial position (attached to the inner wall of the drainage tube 3). At this time, the connecting plate 9 blocks one side of the vent 10 and seals it, so that the first liquid chamber 12 is only connected to the interior of the balloon 4, but not to the interior of the second liquid chamber 13. At this time, the staff injects a certain amount of saline, which enters the interior of the balloon 4, causing the balloon 4 to expand and support the external catheter 1, thereby performing subsequent drainage of intestinal obstruction blockages. During the expansion process of the balloon 4, its outer wall will move outward, and during the movement, the connecting plate 7 will drive the movable plate 8 to move synchronously. When the balloon 4 expands to a suitable size, the connecting plate 7 drives the movable plate 8 to move just to the lower end of the connecting hole 6, so that the movable plate 8 just closes the connecting hole 6, and when the movable plate 8 is in close contact with the connecting hole 6, the vent hole 10 and the matching hole 11 cooperate with each other, so that the first liquid chamber 12 is connected with the second liquid chamber 13 through the vent hole 10 and the matching hole 11. If physiological saline is continuously injected subsequently, the physiological saline will no longer enter the interior of the balloon 4, but directly enter the interior of the second liquid chamber 13.

[0023] During use, after finding the area where the patient has intestinal obstruction, the catheter head end 2 is facing 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 interior of the balloon 4 through the connecting hole 6, causing the balloon 4 to expand. During the expansion process of the balloon 4, the interior of the balloon 4 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 close to the lower end of the connecting 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 head end 2 at the front end of the intestinal obstruction. At the same time, when the movable plate 8 is close to the bottom of the connecting hole 6, the matching hole 11 and the vent hole 10 are in an overlapping state. If the medical staff injects physiological saline, the physiological saline will directly enter the second liquid chamber 13.

[0024] Example 2, reference Figure 4 as well as Figure 7 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: the drug application assembly includes an extrusion airbag 14 fixedly installed between the outer catheter 1 and the catheter head end 2, and a drug storage rubber 15 fixedly installed on the outer wall of the outer catheter 1. The extrusion airbag 14 is located inside the drug storage rubber 15, and the inside of the extrusion airbag 14 is connected to the second liquid chamber 13. The balloon 4 and the extrusion airbag 14 are both expanded by injecting physiological saline. There are multiple drug outlet holes 16 for spraying drugs evenly distributed on the side wall of the drug storage rubber 15. The drug storage rubber 15 is made of high-rebound silicone rubber, and the area between the drug storage rubber 15 and the extrusion airbag 14 is a drug storage cavity 17.

[0025] Specifically, the extrusion airbag 14 is located inside the medicine storage rubber 15, and the medical staff can inject the required medicine into the medicine storage cavity 17 for storage through a syringe. The medicine storage rubber 15 is made of high-rebound silicone rubber for the following purpose: when a medicine outlet 16 is opened on the medicine storage rubber 15, as long as the thickness of the medicine storage rubber 15 is ensured to be thick enough and highly resilient, it can be ensured that when the medicine storage rubber 15 is in a relaxed state, the medicine outlet 16 thereon is equivalent to being in a closed state, and at this time, the medicine liquid inside the medicine storage cavity 17 will not flow out through the medicine outlet 16, and when the medicine storage rubber 15 expands, the medicine outlet 16 at its upper end will gradually become larger due to the expansion of the medicine storage rubber 15, and during the process of enlargement, the medicine outlet 16 is equivalent to being in an open state, and at this time, the medicine can be sprayed through the medicine outlet 16. The principle is: Elastic deformation mechanism of rubber: Relaxed state (unstressed): The rubber molecular chain is in a naturally curled state. The internal contraction force of the material causes the elastomer around the small hole to gather toward the center, causing the small hole to passively close. At this time, the void may only appear as a gap.

[0026] Expansion state (under tension or pressure): Under the action of external force, the rubber molecular chain is stretched, the material as a whole is deformed, and the area around the small hole expands radially due to stress concentration, resulting in a significant increase in the pore size and the formation of a visible open channel.

[0027] The squeezing airbag 14 is used to trigger the medicine application component. When the medical staff needs to apply medicine, they continue to inject physiological saline into the first liquid chamber 12. The physiological saline enters the second liquid chamber 13 and directly enters the squeezing airbag 14, so that the squeezing airbag 14 expands inside the medicine storage rubber 15. During the expansion process, the squeezing airbag 14 will first drive the medicine storage rubber 15 to expand to a certain extent. When the squeezing airbag 14 expands and gives enough pressure to the medicine storage rubber 15, the squeezing airbag 14 can squeeze the medicine liquid inside the medicine storage rubber 15 through the medicine outlet 16, and perform drug treatment on the patient's intestinal obstruction infection area (drug treatment occurs after the intestinal obstruction is relieved and cleaned, to prevent flushing from washing away the medicine and affecting the subsequent treatment effect).

[0028] During use, after cleaning, the medical staff injects saline into the water filling joint 26. Because the movable plate 8 is tightly attached to the lower end of the connecting hole 6 during the expansion of the balloon 4, the matching hole 11 on the movable plate 8 and the vent hole 10 overlap each other. At this time, the first liquid chamber 12 is connected to the second liquid chamber 13, and the injected saline enters the second liquid chamber 13 and directly enters the extrusion airbag 14. The extrusion airbag 14 generates an outward extrusion force on the inner wall of the medicine storage rubber 15 while expanding. 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 squeezing of the extrusion airbag 14, the extrusion airbag 14 can squeeze out the medicine inside the medicine storage cavity 17 and directly act on the intestinal obstruction area. The medical staff can control the amount of medicine released by the medicine storage rubber 15 and the number of spraying times by the amount and number of times of injecting saline.

[0029] The remaining structures are the same as those of Example 1.

[0030] Example 3, reference Figure 1 as well as Figure 8, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that a partition plate 18 is fixedly installed inside the drainage tube 3, and the partition plate 18 divides the inside of the drainage tube 3 into a flushing cavity 19 and a drainage cavity 20. A waterproof shell 21 is fixedly installed on the outer wall of the catheter head end 2, and a miniature camera 22 is embedded and encapsulated in the waterproof shell 21. The miniature camera 22 is located at the front end of the catheter head end 2, and a multi-connected catheter 23 is fixedly installed on the side wall of the end of the outer catheter 1 away from the catheter head end 2. The multi-connected catheter 23 is respectively fixedly connected with a flushing joint 24, a guide joint 25 and a water filling joint 26, and a cover 27 is threadedly installed at the ports of the flushing joint 24, the guide joint 25 and the water filling joint 26. A drainage joint 28 is fixedly installed at one end of the drainage tube 3, and the flushing joint 24 is fixedly connected to the flushing cavity 19, and the drainage joint 28 is fixedly connected to the drainage cavity 20. A guide wire 29 is placed inside the drainage cavity 20 of the drainage tube 3. The direction of the guide wire 29 can be adjusted. After the catheter tip 2 enters the stomach, the direction can be adjusted to be inserted into the pylorus and into the duodenum.

[0031] 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, and 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. The drainage can discharge the physiological saline that has entered the human body and the flushed blockage in the first place, thereby preventing the accumulation of physiological saline from causing discomfort to the patient.

[0032] The guide wire 29 is used to guide the movement of the outer catheter 1 in the human body. The guide wire 29 is located inside the outer catheter 1. The guide wire 29 first enters a partial area of ​​the patient's body, and then the 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 duodenum.

[0033] The micro camera 22 transmits the video of the area around the catheter head end 2 to the medical staff in real time. The medical staff can observe the situation inside the patient's body through the transmitted information, and can observe the situation inside the patient's body more intuitively, which effectively helps the medical staff to evaluate the patient's physical condition. At the same time, the waterproof shell 21 is used to protect the micro camera 22 to prevent water from entering the micro camera 22 and causing damage during the flushing process.

[0034] During use, the medical staff inserts the outer catheter 1 into the body through the patient's nasal cavity, and observes the image transmitted by the micro camera 22 and inserts the guide wire 29. After the guide wire 29 enters the designated position, the outer catheter 1 is synchronously inserted into the designated position under the guidance of the guide wire 29. When the catheter head end 2 enters the patient's duodenum, the area of ​​the patient's intestinal obstruction is found. After the area of ​​the patient's intestinal obstruction is found, the catheter head end 2 is facing 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 balloon 4 through the connecting hole 6, causing the balloon 4 to expand. During the expansion process of the balloon 4, the interior thereof 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 close to the lower end of the connecting 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 head end 2 at the front end of the intestinal obstruction. After completing the fixation of the outer catheter 1 and the catheter head end 2, the medical staff injects saline into the flushing cavity 19 through the flushing connector 24. The saline in the flushing cavity 19 directly acts on the intestinal obstruction area to flush the blockage. At the same time, the drainage connector 28 drains the saline and the blockage that have entered the patient's body out of the human body. The operation is continued until the intestinal obstruction is relieved.

[0035] The remaining structure is the same as that of Example 2.

[0036] Based on Examples 1-3, the working principle of the present invention is as follows: Insertion of the external catheter 1: The medical staff inserts the external catheter 1 into the body through the patient's nasal cavity, and inserts the guide wire 29 by observing the image transmitted by the micro camera 22. After the guide wire 29 enters the designated position, the external catheter 1 is synchronously inserted into the designated position under the guidance of the guide wire 29. When the catheter head end 2 enters the patient's duodenum, the area of ​​intestinal obstruction of the patient is found.

[0037] Fixation of the outer catheter 1: After finding the area where the patient has intestinal obstruction, the catheter head end 2 is facing 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 interior of the balloon 4 through the connecting hole 6, causing the balloon 4 to expand. During the expansion process of the balloon 4, the interior of the balloon 4 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 close to the lower end of the connecting 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 head end 2 at the front end of the intestinal obstruction.

[0038] Relief of intestinal obstruction: After completing the fixation of the external catheter 1 and the catheter head end 2, the medical staff injects normal saline into the flushing cavity 19 through the flushing connector 24. The normal saline in the flushing cavity 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 have entered the patient's body out of the human body. The operation is continued until the intestinal obstruction is relieved.

[0039] Applying medicine to the intestinal obstruction area: After completing the cleaning, the medical staff injects saline into the water filling joint 26. Because the movable plate 8 is tightly attached to the lower end of the connecting hole 6 during the expansion of the balloon 4, the matching hole 11 on the movable plate 8 and the vent hole 10 overlap each other. At this time, the first liquid chamber 12 is connected to the second liquid chamber 13, and the injected saline enters the second liquid chamber 13 and directly enters the extrusion airbag 14. The extrusion airbag 14 generates an outward extrusion force on the inner wall of the medicine storage rubber 15 while expanding. The medicine storage rubber 15 expands under the action of the extrusion force. 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 squeezing of the extrusion airbag 14, the extrusion airbag 14 can squeeze out the medicine in the medicine storage cavity 17 and directly act on the intestinal obstruction area. The medical staff can control the amount of medicine released by the medicine storage rubber 15 and the number of spraying times by the amount and number of times of injecting saline.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A visual intestinal obstruction catheter kit, comprising an outer catheter and a catheter head, wherein 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, characterized in that: An air baffle is fixedly mounted on the outer wall of the drainage tube, and a variable connection unit is mounted on one side of the air baffle; The variable connection unit includes a connecting hole provided 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 on the lower end of the connecting plate, two connecting plates are fixedly installed on the lower ends of both sides of the movable plate, two vent holes are provided on the air baffle plate, matching holes are provided on the two connecting 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 air baffle plate, and a drug 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 located at the initial position, the first liquid chamber and the second liquid chamber are in a separated state, and the first liquid chamber and the interior of the balloon are in a connected state. When the movable plate is located at the set position, the first liquid chamber and the second liquid chamber are in a connected state, and the first liquid chamber and the interior of the balloon are in a separated state.

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

3. A visual intestinal obstruction catheter kit according to claim 2, characterized in that: A plurality of drug outlet holes for spraying drugs are evenly distributed on the side wall of the drug storage rubber. The drug storage rubber is made of high-resilience silicone rubber. The area between the drug storage rubber and the extrusion airbag is the drug storage cavity.

4. A visual intestinal obstruction catheter kit according to claim 3, characterized in that: 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.

5. The visual intestinal obstruction catheter kit according to claim 1, characterized in that: A waterproof shell is fixedly mounted on the outer wall of the catheter head end, and a miniature camera is embedded and packaged in the waterproof shell. The miniature camera is located at the front end of the catheter head end.

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

7. A 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 connected to the flushing cavity, and the drainage joint is fixedly connected to the drainage cavity.

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

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

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