Urethral catheterization device for urology department nursing and using method thereof

Abstract

The invention relates to the technical field of medical instruments, and discloses a urinary catheterization device for urology department nursing and a using method thereof.The urinary catheterization device comprises a main body and further comprises a deviation rectifying mechanism, the deviation rectifying mechanism is installed on the outer surface of the main body, and movement of the deviation rectifying mechanism can reduce the bending situation of the top of the main body when water is injected into the main body. The drainage holes are circumferentially distributed, when liquid is injected into the balloon barrel, the liquid entering the balloon barrel can be evenly distributed, meanwhile, the inner walls of the first blocking plate and the second blocking plate on the outer wall of the balloon barrel make contact with each other, deformation of the balloon barrel can be blocked to a certain degree, and therefore the overall deformation of the balloon barrel is in a synchronous state; the condition that the main body in the bladder is extruded by the deformation of the balloon barrel to be bent due to the deformation of one side, close to the water injection hole, of the balloon barrel is reduced, so that the stability of the urinary catheterization device for nursing in the bladder is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a urinary catheterization device for urological care and its usage method. Background Technology

[0002] The core function of a urinary catheter is to establish an external urination channel for precise urine management. Its core medical functions include: draining retained urine to protect the kidneys, accurately monitoring urine output in critically ill patients, providing operational conditions for urological surgeries or examinations, and assisting in treatment. As one of the most basic and widely used medical devices in clinical practice, it is an indispensable life support and treatment tool from short-term emergency care to long-term nursing care. Every advancement in its design and materials aims to improve patient safety and comfort. When using a urinary catheter, the catheter is typically inserted into the patient's bladder, and fluid is injected into the balloon through an internal inlet. This causes the balloon to inflate and block the bladder's drain outlet, preventing the catheter from slipping out. Because the drain outlet on a typical catheter is located near the outer surface of the catheter, the side of the balloon closest to the inlet is prone to deformation under the pressure of the continuously injected fluid. This unilateral deformation can cause the catheter inside the bladder to bend due to the pressure from the balloon, potentially scraping against the bladder wall. This not only affects patient comfort but also reduces the stability of the catheter within the bladder. Summary of the Invention

[0003] The purpose of this invention is to provide a urinary catheterization device for urological care and its method of use, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a urinary catheterization device for urological care, comprising a main body and further comprising: The correction mechanism is installed on the outer surface of the main body. The movement of the correction mechanism can reduce the bending of the top of the main body when water is injected into the main body. The auxiliary mechanism is installed on the outer surface of the correction mechanism. The operation of the auxiliary mechanism can reduce the warping that occurs when the correction mechanism is in operation.

[0005] Furthermore, the main body includes: The injection component is located on the front of the main body and is mainly used to drain urine from the patient's body. The discharge component is located on the back of the injection component.

[0006] Furthermore, corrective bodies include: The water storage component is located inside the main body. When the water storage component is in operation, it can rectify and store the liquid injected into the main body. Anti-crease component, which is set on the outer surface of the main body.

[0007] Furthermore, the auxiliary mechanisms include: The anti-folding component is located on the left side of the anti-folding component; the operation of the anti-folding component can reduce the upward floating of the main body when urine accumulates in the patient's bladder.

[0008] Furthermore, the injection assembly includes a urination connector fixedly connected to the front of the main body, and an injection head is fixedly connected to the outer surface of the urination connector.

[0009] Furthermore, the discharge component includes a urination port opened inside the main body; The main body has a water injection hole inside, and a urine discharge hole extends to the outside of the main body.

[0010] Furthermore, the water storage component includes a water collection tank inside the main body, and a number of drainage holes are provided on the top of the water collection tank, with the drainage holes distributed circumferentially around the main body. The side wall of the drainage hole is equipped with a balloon tube. The left and right sides of the balloon tube are fixedly connected to the side wall of the main body. The water collection tank and the water injection hole are connected. The diameter of the balloon tube is smaller than the diameter of the main body.

[0011] Furthermore, the anti-wrinkle assembly includes a first baffle plate fixedly connected to the outer surface of the main body, a second baffle plate provided on the left side of the first baffle plate, and the inner wall of the second baffle plate fixedly connected to the outer surface of the main body. The outer surface of the first baffle plate is in contact with the inner wall of the second baffle plate. The point where the first baffle plate and the second baffle plate meet is located in the upper middle part of the balloon tube. Half of the first baffle plate is located in the outer area of ​​the balloon tube, while the second baffle plate completely covers the outside of the balloon tube. There are gaps between the first baffle plate, the second baffle plate and the balloon tube.

[0012] Furthermore, the anti-tilting component includes an anti-tilting plate fixedly connected to the outer surface of the second baffle plate, with the left side of the anti-tilting plate fixedly connected to the outer surface of the main body; A leak-proof plate is provided on the right side of the anti-tilting plate. The side wall of the leak-proof plate is fixedly connected to the outer surface of the first blocking plate, and the end of the leak-proof plate away from the first blocking plate is fixedly connected to the outer surface of the main body.

[0013] Furthermore, a method of using a urological nursing catheter, the method comprising the following steps: S1: Device installation: When using the device, medical personnel should first apply lubricant to the outer surface of the main body, and then insert it into the bladder through the patient's urethra; S2: Device fixation: After the main body is placed inside the patient's bladder, medical staff will inject liquid into the main body through the injection head, so that the balloon is affected by water pressure and eventually forms a ball, thereby blocking the bladder outlet and making it difficult for the main body to slip off. S3: Device Removal: When the patient recovers and the main body needs to be removed, medical staff will first use the injection head to drain the liquid inside the balloon to restore the balloon to its initial state. Then, the medical staff will remove the main body from the patient's body, thus completing the installation and removal of the urinary catheter.

[0014] The present invention has the following beneficial effects: 1. In this invention, while the balloon is filled with liquid, more liquid is injected into the balloon through the injection head. At this time, the balloon will deform under the pressure of the liquid and expand outward. Due to the circumferential distribution of multiple drainage holes, the liquid entering the balloon can be evenly distributed when liquid is injected into the balloon. At the same time, the inner walls of the first and second baffle plates on the outer wall of the balloon can block the deformation of the balloon to a certain extent, so that the overall deformation of the balloon is synchronized. This reduces the situation where the side of the balloon closer to the injection hole deforms first, causing the main body in the bladder to bend due to the pressure of the balloon deformation, thereby improving the stability of the nursing catheter in the bladder.

[0015] 2. In this invention, the second blocking plate will reset before the first blocking plate. At this time, the contact surface between the first and second blocking plates will become the inner wall of the first blocking plate and the outer wall of the second blocking plate. This prevents the first blocking plate from moving due to the friction with the urethra when the main body is pulled out. At the same time, the covering of the balloon by the first and second blocking plates reduces the resistance formed by the folds generated when the balloon resets after a long period of expansion and elastic potential energy decreases, thereby reducing the obstruction when the main body is pulled out and further improving the smoothness of the removal of the nursing catheter.

[0016] 3. In this invention, the top of the anti-tilting plate is fixedly connected to the outer surface of the main body. When the anti-tilting plate deforms, it will push the curved part of the second blocking plate to move towards the surface of the deformed balloon. As the movement of the anti-tilting plate reduces the buoyancy generated at the contact point between the urine level inside the patient's bladder and the inclined surface formed by the curved second blocking plate, the balloon will float up and down, thereby further improving the stability of the nursing catheterization device in the patient's body.

[0017] 4. In this invention, the bending of the end of the blocking plate near the urination connector causes the anti-leakage plate to deform, eventually forming an elliptical shape. Because the anti-leakage plate is made of a relatively soft material, it can reduce the leakage of the bladder after catheterization when it comes into contact with the patient's bladder drain. The anti-leakage plate reduces the possibility of leakage due to the funnel-like shape formed by the outward bending of the blocking plate blocking the bladder drain, thereby improving the leak-proof performance of the nursing catheter after installation.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention.

[0022] Figure 3 For the present invention Figure 2 An enlarged diagram of A in the diagram.

[0023] Figure 4 This is a schematic diagram of the water storage component of the present invention.

[0024] Figure 5 This is a schematic diagram of the anti-wrinkle component of the present invention.

[0025] Figure 6 This is a schematic diagram of the component preventing damage according to the present invention.

[0026] Figure 7 For the present invention Figure 6 Enlarged diagram of B in the diagram.

[0027] Figure 8 This is a partial schematic diagram of the component of the present invention.

[0028] Figure 9 For the present invention Figure 8 An enlarged diagram of C in the diagram.

[0029] Figure 10 This is a flowchart illustrating the use of the urinary catheterization device for nursing care according to the present invention.

[0030] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Injection assembly; 111. Urinating connector; 112. Water injection head; 12. Discharge assembly; 121. Urinating hole; 122. Water injection hole; 2. Correction mechanism; 21. Water storage assembly; 211. Water collection tank; 212. Drainage hole; 213. Balloon tube; 22. Anti-wrinkle assembly; 221. Baffle plate one; 222. Baffle plate two; 3. Auxiliary mechanism; 31. Anti-warping assembly; 311. Anti-tilting plate; 312. Leakage prevention plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1 - Figure 10 As shown, the present invention is a urinary catheterization device for urological care, comprising a main body 1, and further comprising: Correction mechanism 2 is installed on the outer surface of the main body 1. The movement of correction mechanism 2 can reduce the bending of the top of the main body 1 when water is injected into the interior of the main body 1. Auxiliary mechanism 3 is installed on the outer surface of the correction mechanism 2. The operation of auxiliary mechanism 3 can reduce the warping of correction mechanism 2 during operation.

[0033] Entity 1 includes: Injection component 11 is disposed on the front of the main body 1. Injection component 11 is mainly used to drain urine from the patient's body. Discharge component 12 is disposed on the back side of injection component 11.

[0034] Corrective agency 2 includes: Water storage component 21 is installed inside the main body 1. When the water storage component 21 is in operation, it can rectify and store the liquid injected into the main body 1. Anti-wrinkle component 22 is disposed on the outer surface of the main body 1.

[0035] Auxiliary mechanism 3 includes: The anti-wrinkle component 31 is located on the left side of the anti-wrinkle component 22; the operation of the anti-wrinkle component 31 can reduce the upward floating of the main body 1 when urine accumulates in the patient's bladder.

[0036] The injection assembly 11 includes a urination connector 111 fixedly connected to the front of the main body 1. A water injection head 112 is fixedly connected to the outer surface of the urination connector 111. When the main body 1 is inserted into the patient's bladder, the medical staff will inject liquid into the interior of the main body 1 through the water injection head 112. The balloon 213 will eventually form a ball due to the water pressure, thereby blocking the bladder's outlet and preventing the main body 1 from slipping out.

[0037] The discharge component 12 includes a urination hole 121 opened inside the main body 1; The main body 1 has a water injection hole 122 inside and a urine discharge hole 121 extending to the outside of the main body 1. Urine will be discharged through the urine discharge hole 121 inside the main body 1 and flow into the urine bag outside through the urine discharge connector 111. When the patient recovers and needs to remove the main body 1, the medical staff will first use the water injection head 112 to extract the liquid inside the balloon 213 to restore the balloon 213 to its initial state.

[0038] The water storage component 21 includes a water collection tank 211 inside the main body 1. The top of the water collection tank 211 is provided with a number of drainage holes 212, which are distributed circumferentially around the main body 1. A balloon cylinder 213 is provided on the side wall of the drain hole 212. The left and right sides of the balloon cylinder 213 are fixedly connected to the side wall of the main body 1. The water collection tank 211 is connected to the water injection hole 122. The diameter of the balloon cylinder 213 is smaller than the diameter of the main body 1. When the liquid inside the water collection tank 211 is full, the liquid will enter the interior of the balloon cylinder 213 through the drain hole 212. While the balloon cylinder 213 is full of liquid, liquid is still being injected into the balloon cylinder 213 through the water injection head 112. At this time, the balloon cylinder 213 will be deformed by the pressure of the liquid and expand outward from the main body 1.

[0039] The anti-wrinkle assembly 22 includes a first baffle plate 221 fixedly connected to the outer surface of the main body 1, and a second baffle plate 222 is provided on the left side of the first baffle plate 221. The inner wall of the second baffle plate 222 is fixedly connected to the outer surface of the main body 1. The outer surface of the first baffle plate 221 is in contact with the inner wall of the second baffle plate 222. The contact point between the first baffle plate 221 and the second baffle plate 222 is located in the upper middle part of the balloon cylinder 213. Half of the first baffle plate 221 is located in the outer area of ​​the balloon cylinder 213, while the second baffle plate 222 completely covers the outside of the balloon cylinder 213. There are gaps between the first baffle plate 221 and the second baffle plate 222 and the balloon cylinder 213. When liquid is injected into the balloon cylinder 213, the liquid entering the balloon cylinder 213 can be evenly distributed. At the same time, the contact between the outer wall of the first baffle plate 221 and the inner wall of the second baffle plate 222 can block the deformation of the balloon cylinder 213 to a certain extent, so that the overall deformation of the balloon cylinder 213 is synchronized.

[0040] The anti-tilting component 31 includes an anti-tilting plate 311 fixedly connected to the outer surface of the second baffle plate 222, and the left side of the anti-tilting plate 311 is fixedly connected to the outer surface of the main body 1. A leak-proof plate 312 is provided on the right side of the anti-tilting plate 311. The side wall of the leak-proof plate 312 is fixedly connected to the outer surface of the first blocking plate 221. The end of the leak-proof plate 312 away from the first blocking plate 221 is fixedly connected to the outer surface of the main body 1. Since the inner wall of the first blocking plate 221 completely covers the outside of the balloon tube 213, the bending angle of the first blocking plate 221 is relatively large under the pushing force of the deformation of the balloon tube 213. At the same time, since the second blocking plate 222 only covers half of the outside of the balloon tube 213, the bending angle of the second blocking plate 222 is smaller than that of the first blocking plate 221 when the second blocking plate 222 deforms under the pushing force of the deformation of the balloon tube 213.

[0041] A method of using a urological nursing catheter, the method comprising the following steps: S1: Device installation: When using the device, medical personnel should first apply lubricant to the outer surface of the main body 1, and then insert it into the bladder through the patient's urethra; S2: Device fixation: After the main body 1 is placed inside the patient's bladder, the medical staff will inject liquid into the inside of the main body 1 through the water injection head 112, so that the balloon 213 will eventually form a ball under the influence of water pressure, thereby blocking the bladder outlet and making it difficult for the main body 1 to slip off. S3: Device Removal: When the patient recovers and the main body 1 needs to be removed, the medical staff will first use the water injection head 112 to extract the liquid inside the balloon 213 to restore the balloon 213 to its initial state. Then, the medical staff will remove the main body 1 from the patient's body, thus completing the installation and removal of the urinary catheter.

[0042] In use, medical personnel first apply lubricant to the outer surface of the main body 1, and then insert it into the bladder through the patient's urethra. After the main body 1 is inserted into the patient's bladder, the medical personnel inject liquid into the inside of the main body 1 through the injection head 112, so that the balloon 213 is affected by water pressure and eventually forms a ball, thereby blocking the bladder's outlet and preventing the main body 1 from slipping out. At this time, urine will be discharged through the urination hole 121 opened inside the main body 1 and flow into the external urine bag through the urination connector 111. When the patient recovers and the main body 1 needs to be removed, the medical personnel first use the injection head 112 to extract the liquid inside the balloon 213 to restore the balloon 213 to its initial state. Then, the medical personnel will remove the main body 1 from the patient's body, thus completing the installation and removal of the urinary catheter.

[0043] When the main body 1 is located inside the patient's bladder and liquid is injected into the balloon 213 through the injection head 112, the injected liquid first enters the collection tank 211 through the injection hole 122. The liquid then accumulates inside the collection tank 211. When the collection tank 211 is full, liquid enters the balloon 213 through the drain hole 212. Even as the balloon 213 is full, liquid continues to be injected into it through the injection head 112. At this point, the balloon 213 is deformed by the pressure of the liquid and expands outwards from the main body 1. Due to multiple... The circumferential distribution of the drain hole 212 ensures that the liquid entering the balloon 213 is evenly distributed when liquid is injected into the balloon 213. At the same time, the contact between the inner walls of the first baffle plate 221 and the second baffle plate 222 on the outer wall of the balloon 213 can block the deformation of the balloon 213 to a certain extent, so that the overall deformation of the balloon 213 is synchronized. This reduces the possibility of the main body 1 in the bladder bending due to the compression caused by the deformation of the balloon 213, which occurs first on the side of the balloon 213 closest to the water injection hole 122. This improves the stability of the nursing catheter in the bladder.

[0044] As the balloon tube 213 begins to expand outwards, the first baffle 221 and the second baffle 222 located outside the balloon tube 213 are pushed by the balloon tube 213 and bend outwards to different degrees. Since the inner wall of the first baffle 221 completely covers the outside of the balloon tube 213, the bending angle of the first baffle 221 is relatively large under the pushing force of the balloon tube 213's deformation. Meanwhile, since the second baffle 222 only covers half of the outside of the balloon tube 213, the bending angle of the second baffle 221 is relatively large. When the second blocking plate 222 deforms under the force of deformation, its bending angle is smaller than that of the first blocking plate 221. During the process of the balloon cylinder 213 deforming into its final spherical shape, the contact points between the first blocking plate 221 and the second blocking plate 222 will gradually move away from each other until they no longer contact each other. At this point, due to the different bending angles of the first blocking plate 221 and the second blocking plate 222, the first blocking plate 221 will gradually detach from the blocking plate under the force of the balloon cylinder 213 deformation. The covering of the second baffle plate 222, when the liquid inside the balloon 213 is completely drained and the main body 1 is removed, the balloon 213 will gradually reset under the action of the drained liquid. Due to the small bending angle of the second baffle plate 222, when the first baffle plate 221 and the second baffle plate 222 reset, the second baffle plate 222 will reset before the first baffle plate 221. At this time, the contact surface between the first baffle plate 221 and the second baffle plate 222 will become the contact between the inner wall of the first baffle plate 221 and the outer wall of the second baffle plate 222. This prevents the first baffle plate 221 from moving due to the friction with the urethra when the main body 1 is pulled out again. At the same time, the covering of the balloon 213 by the first baffle plate 221 and the second baffle plate 222 reduces the resistance formed by the folds generated when the balloon 213 resets after a long period of expansion and elastic potential energy decreases, thus reducing the obstruction when the main body 1 is pulled out and further improving the smoothness of the removal of the nursing catheter.

[0045] When the second baffle plate 222 bends outward toward the main body 1, the inside of the second baffle plate 222 contacts the outer wall of the deformed balloon tube 213. Since the second baffle plate 222 is slidably connected to the outer surface of the main body 1, the second baffle plate 222 will slide toward the top of the main body 1 under its own restoring force after deformation. The upward sliding of the second baffle plate 222 will cause the anti-tilting plate 311 to deform. Since the top of the anti-tilting plate 311 is fixedly connected to the outer surface of the main body 1, when the anti-tilting plate 311 deforms, it will push the bent part of the second baffle plate 222 toward the surface of the deformed balloon tube 213. The movement of the anti-tilting plate 311 reduces the buoyancy generated at the contact point between the urine level inside the patient's bladder and the inclined surface formed by the bent second baffle plate 222 when the urine level gradually rises, causing the balloon tube 213 to float up and down, thereby further improving the stability of the nursing catheter in the patient's body.

[0046] When the outer body 1 of the baffle plate 221 bends, the bending of the end of the baffle plate 221 near the urination connector 111 will cause the anti-leak plate 312 to deform, eventually forming an elliptical shape. Since the material of the anti-leak plate 312 is relatively soft, when the anti-leak plate 312 comes into contact with the patient's bladder drain, it can reduce the leakage of the bladder after catheterization. The setting of the anti-leak plate 312 reduces the possibility of leakage due to the funnel-like shape formed by the outward bending of the baffle plate 221 blocking the bladder drain, thereby improving the leak-proof performance of the nursing catheter after installation.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A urinary catheterization device for urological care, comprising a main body (1), characterized in that, Also includes: The correction mechanism (2) is installed on the outer surface of the main body (1). The movement of the correction mechanism (2) can reduce the bending of the top of the main body (1) when water is injected into the interior of the main body (1). The auxiliary mechanism (3) is installed on the outer surface of the correction mechanism (2). The operation of the auxiliary mechanism (3) can reduce the warping of the correction mechanism (2) during operation.

2. The urinary catheterization device for urological care according to claim 1, characterized in that: The main body (1) includes: Injection assembly (11), which is disposed on the front of the main body (1), is mainly used to drain urine from the patient's body; Discharge assembly (12) is disposed on the back side of injection assembly (11).

3. A urinary catheterization device for urological care according to claim 2, characterized in that: The correction mechanism (2) includes: Water storage component (21), which is located inside the main body (1), can rectify and store the liquid injected into the main body (1) when the water storage component (21) is in operation; Anti-wrinkle assembly (22) is disposed on the outer surface of the main body (1).

4. A urinary catheterization device for urological care according to claim 3, characterized in that: The auxiliary mechanism (3) includes: An anti-folding component (31) is located on the left side of the anti-folding component (22); the operation of the anti-folding component (31) can reduce the upward floating of the main body (1) when urine accumulates in the patient's bladder.

5. A urinary catheterization device for urological care according to claim 4, characterized in that: The injection assembly (11) includes a urination connector (111) fixedly connected to the front of the main body (1), and a water injection head (112) is fixedly connected to the outer surface of the urination connector (111).

6. A urinary catheterization device for urological care according to claim 4, characterized in that: The discharge assembly (12) includes a urination port (121) opened inside the body (1). The main body (1) has a water injection hole (122) inside, and the urination hole (121) extends to the outside of the main body (1).

7. A urinary catheterization device for urological care according to claim 5, characterized in that: The water storage component (21) includes a water collection tank (211) inside the main body (1), and a number of drainage holes (212) are provided on the top of the water collection tank (211), and the number of drainage holes (212) are distributed in a circle around the main body (1). The side wall of the drain hole (212) is provided with a balloon cylinder (213). The left and right sides of the balloon cylinder (213) are fixedly connected to the side wall of the main body (1). The water collection tank (211) and the water injection hole (122) are connected in a continuous manner.

8. A urinary catheterization device for urological care according to claim 5, characterized in that: The anti-wrinkle assembly (22) includes a first baffle plate (221) fixedly connected to the outer surface of the main body (1), and a second baffle plate (222) is provided on the left side of the first baffle plate (221). The inner wall of the second baffle plate (222) is fixedly connected to the outer surface of the main body (1). The outer surface of the first baffle (221) is in contact with the inner wall of the second baffle (222).

9. A urinary catheterization device for urological care according to claim 8, characterized in that: The anti-tilting component (31) includes an anti-tilting plate (311) fixedly connected to the outer surface of the second baffle plate (222), and the left side of the anti-tilting plate (311) is fixedly connected to the outer surface of the main body (1). A leak-proof plate (312) is provided on the right side of the anti-tilting plate (311). The side wall of the leak-proof plate (312) is fixedly connected to the outer surface of the first blocking plate (221). The end of the leak-proof plate (312) away from the first blocking plate (221) is fixedly connected to the outer surface of the main body (1).

10. A method of using a urinary catheterization device for urological care, characterized in that: The method of using a urological catheterization device as described in claim 9 includes the following steps: S1: Device installation: When in use, medical personnel should first apply lubricant to the outer surface of the main body (1), and then insert it into the bladder through the patient's urethra; S2: Device fixation: After the main body (1) is placed inside the patient's bladder, the medical staff will inject liquid into the inside of the main body (1) through the water injection head (112) so that the balloon tube (213) will eventually form a ball under the influence of water pressure, thereby blocking the bladder outlet and making it difficult for the main body (1) to slip off. S3: Device removal: When the patient recovers and needs to remove the main body (1), the medical staff will first use the water injection head (112) to extract the liquid inside the balloon (213) to restore the balloon (213) to its initial state. Then the medical staff will remove the main body (1) from the patient's body, thus completing the installation and removal of the catheterization device.

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