A urinary catheter

Abstract

The utility model relates to the technical field of medical apparatus and instruments, in particular to a catheter, its will guide structure inserts into the skin pipe, again will lubricant smears to the skin pipe surface, after that, the skin pipe is inserted into the urethra of patient, makes one end of skin pipe to pass through the urethra of patient and extends into the bladder of patient, improves the convenience and speed of skin pipe insertion, again, the guide structure is extracted from the skin pipe, after that, the skin pipe is positioned through the limiting structure, when needing to flush in the bladder of patient, the washing liquid is guided through the flushing structure, makes the washing liquid enter into the bladder of patient, thereby improves the practicability of catheter, including the skin pipe, the inside of skin pipe is provided with drainage passage no.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to a urinary catheter. Background Technology

[0002] A urinary catheter is a long, thin tubular device that allows urine to be drained from the body through the tube by inserting it into the patient's bladder. Existing urinary catheters, such as the balloon urinary catheter disclosed in utility model patent CN205460377U and a urinary catheter disclosed in utility model patent CN220002711U, can all achieve the function of urinary catheterization.

[0003] However, during use, it was found that the existing urinary catheters have a relatively simple structure. Firstly, the balloons of some urinary catheters leak during use. Since the balloons are located inside the patient's body, medical staff may not be able to detect this in time, which can easily lead to catheter dislodgement. Secondly, when performing intermittent bladder irrigation, the urinary catheter needs to be repeatedly connected and disconnected from the irrigation device, which is time-consuming, laborious, and prone to causing interference. Furthermore, the insertion of existing urinary catheters is difficult and time-consuming, causing more pain to the patient and resulting in poor practicality. Therefore, it is urgent to improve the existing urinary catheters and solve the above problems. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a catheter in which a guide structure is inserted into a tubing, lubricant is applied to the surface of the tubing, and then the tubing is inserted into the patient's urethra, with one end of the tubing extending into the patient's bladder through the urethra. This improves the convenience and speed of tubing insertion. The guide structure is then withdrawn from the tubing, and a limiting structure is used to limit the tubing. When it is necessary to irrigate the patient's bladder, the irrigating structure guides the irrigating fluid into the patient's bladder, thereby improving the practicality of the catheter.

[0005] The present invention provides a urinary catheter, including a tubing with a drainage passage inside; it also includes a limiting structure, a flushing structure, and a guiding structure, wherein the limiting structure and the flushing structure are both installed on the tubing, and the guiding structure is located in the tubing; The guiding structure guides the tubing, the tubing guides the urine flow, the limiting structure limits the tubing, and the flushing structure guides the flushing fluid. The guide structure is inserted into the tubing, and lubricant is applied to the surface of the tubing. The tubing is then inserted into the patient's urethra, with one end extending into the patient's bladder, improving the ease and speed of insertion. The guide structure is then withdrawn from the tubing, and the tubing is then positioned by a limiting structure. When bladder irrigation is required, the irrigation structure guides the irrigation fluid into the patient's bladder, thereby improving the practicality of the catheter.

[0006] Preferably, the guiding structure includes a guide rod and a guide rod end plug, with the guide rod end plug mounted on the guide rod; the guide rod is inserted into the tubing, allowing the guide rod to support the tubing, facilitating the insertion of one end of the tubing into the patient's bladder, thereby improving the practicality of the urinary catheter.

[0007] Preferably, the limiting structure includes a balloon, a pressure monitoring cap, a soft rubber plug, and an external thread. The tubing has a second drainage passage inside. The balloon is fitted onto one end of the tubing and communicates with the second drainage passage inside the tubing. The water inlet of the second drainage passage has an external thread. The soft rubber plug is interference-fitted into the water inlet of the second drainage passage, and a fine hole is provided in the middle of the soft rubber plug. The pressure monitoring cap is threaded onto the external thread. A syringe containing saline solution or other drainage device is passed through the fine hole in the middle of the soft rubber plug. The catheter is inserted through a small hole, and then the saline solution is drained into the second drainage channel of the tubing via a syringe or other drainage device. This allows the saline solution to enter the balloon. As the saline solution in the balloon increases, it expands and becomes lodged in the patient's bladder, limiting the tubing. The syringe or other drainage device is then pulled out through the small hole of the soft rubber plug. Because the soft rubber plug is interference-fitted, the small hole closes, preventing the saline solution from draining out. Finally, the pressure monitoring cap is threaded onto the external thread to monitor the pressure inside the balloon, thereby improving the practicality of the catheter.

[0008] Preferably, the pressure monitoring cap includes a monitoring cap shell, a transparent top cover, a warning post, a float, a compression spring, and a sealing ring. A thin tube is disposed in the middle of the monitoring cap shell. The transparent top cover is installed on the top of the monitoring cap shell, and the thin tube communicates with the interior of the transparent top cover. The float is slidably installed in the transparent top cover. The warning post is installed on the top of the transparent top cover and is fixedly installed in the top of the transparent top cover, with the warning post located in the float. The compression spring is installed in the warning post. The sealing ring is fitted onto the thin tube. The monitoring cap shell is threaded. On the external thread one, a sealing ring is used to seal the gap between the monitoring cap housing and the external thread one. The thin tube one passes through the small hole in the middle of the soft rubber plug. Then, the saline in the tubing drainage passage two passes through the thin tube one into the transparent top cover, which causes the float to rise. This causes the compression spring to contract, and the float obscures the warning column. In the event of a balloon leak, the pressure in the balloon and drainage passage two decreases. The elasticity of the compression spring causes the float to fall, exposing the warning column and alerting medical personnel, thereby improving the practicality of the catheter.

[0009] Preferably, the balloon has a gradually varying wall thickness structure distributed along the axial direction, and the wall thickness value of the bottom region of the balloon is less than that of the top region, and the wall thickness increases continuously from the bottom to the top. After the balloon is inflated, the bottom is arc-shaped and the top is flat. This facilitates fitting the shape of the bottom of the patient's bladder and ensures that the entire balloon is located in the patient's bladder, reducing the pressure and friction of the balloon on the patient's urethra, thereby improving the practicality of the catheter.

[0010] Preferably, the flushing structure includes a sealing cap, and the inside of the tubing is provided with a drainage passage three. The water injection end of the drainage passage three is provided with an external thread two, and the sealing cap is threaded onto the external thread two. The water injection end of the drainage passage three is sealed by the external thread two. When the patient's bladder needs to be flushed, the flushing device is used to puncture the sealing cap and inject flushing solution into the drainage passage three, so that the solution passes through the drainage passage three and enters the patient's bladder, thereby improving the practicality of the catheter.

[0011] Preferably, the occlusion cap includes an occlusion cap shell, a sealing block, and a second sealing ring. A thin tube is provided in the middle of the occlusion cap shell. The sealing block is installed on the top of the occlusion cap shell, and the second sealing ring is fitted onto the thin tube. The occlusion cap shell is threaded onto the second external thread, allowing the thin tube to extend into the drainage passage three of the tubing. The gap between the occlusion cap shell and the second external thread is sealed by the second sealing ring. When the patient's bladder needs to be flushed, the flushing device punctures the sealing block, draining the flushing medication into the drainage passage three of the tubing, and then draining the flushing medication into the patient's bladder through the drainage passage three. This allows for repeated connection and disconnection of the flushing device and the pressure monitoring cap for intermittent flushing, thereby improving the practicality of the catheter.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The pressure monitoring cap allows for timely detection of leaks in the balloon by medical personnel. 2. The water injection end of the hose drainage passage three is sealed by the sealing cap, which facilitates the repeated connection and disconnection of the flushing device with the sealing cap for intermittent flushing; 3. The tubing is supported by a guide rod, which improves the ease and speed of tubing insertion; 4. The special structure and shape of the balloon reduce the pressure and friction on the patient's urethra, providing patient comfort and reducing complications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a front view cross-sectional structural diagram of the limiting structure of this utility model; Figure 4 This is a front view cross-sectional structural diagram of the flushing structure of this utility model; Figure 5 This is a partial cross-sectional isometric structural schematic diagram of this utility model; Figure 6 This is a utility model Figure 5 A magnified structural diagram of part A in the diagram; Figure 7 This is a frontal cross-sectional structural diagram of the tubing and balloon of this utility model.

[0014] The following are labeled in the attached diagram: 1. Tubing; 2. Guide rod; 3. Guide rod end plug; 4. Balloon; 5. Pressure monitoring cap; 6. Soft rubber plug; 7. External thread one; 8. Monitoring cap housing; 9. Transparent top cover; 10. Warning column; 11. Float; 12. Compression spring; 13. Sealing ring one; 14. Thin tube one; 15. Sealing cap; 16. External thread two; 17. Sealing cap housing; 18. Sealing block; 19. Sealing ring two; 20. Thin tube two; 21. Drainage passage one; 22. Drainage passage two; 23. Drainage passage three. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0016] like Figures 1 to 7 As shown, a urinary catheter includes a tubing 1, the tubing 1 having a drainage passage 21 inside; it also includes a limiting structure, a flushing structure and a guiding structure, the limiting structure and the flushing structure being installed on the tubing 1, and the guiding structure being located in the tubing 1. The guiding structure guides the tubing 1, the tubing 1 guides the urine flow, the limiting structure limits the tubing 1, and the flushing structure guides the flushing fluid. The guiding structure includes a guide rod 2 and a guide rod end plug 3, with the guide rod end plug 3 mounted on the guide rod 2; The limiting structure includes a balloon 4, a pressure monitoring cap 5, a soft rubber plug 6, and an external thread 7. The inside of the tubing 1 is provided with a drainage passage 22. The balloon 4 is fitted onto one end of the tubing 1 and is connected to the drainage passage 22 inside the tubing 1. The water injection port of the drainage passage 22 is provided with an external thread 7. The soft rubber plug 6 is interference-fitted into the water injection port of the drainage passage 22, and a fine hole is provided in the middle of the soft rubber plug 6. The pressure monitoring cap 5 is threaded onto the external thread 7. The pressure monitoring cap 5 includes a monitoring cap shell 8, a transparent top cover 9, a warning post 10, a float 11, a compression spring 12, and a sealing ring 13. A thin tube 14 is provided in the middle of the monitoring cap shell 8. The transparent top cover 9 is installed on the top of the monitoring cap shell 8, and the thin tube 14 communicates with the interior of the transparent top cover 9. The float 11 is slidably installed in the transparent top cover 9. The warning post 10 is installed on the top inside the transparent top cover 9 and is fixedly installed on the top inside the transparent top cover 9. The warning post 10 is located in the float 11. The compression spring 12 is installed in the warning post 10. The sealing ring 13 is fitted onto the thin tube 14. The balloon 4 has a gradually varying wall thickness structure distributed along the axial direction, and the wall thickness value of the bottom region of the balloon 4 is less than the wall thickness value of the top region. The wall thickness increases continuously from the bottom to the top. After the balloon 4 is inflated, the bottom is arc-shaped and the top is planar. Insert the guide rod 2 into the tubing 1 to support it. Apply lubricant to the surface of the tubing 1. Then, insert one end of the tubing 1 through the patient's urethra into the patient's bladder. Remove the guide rod 2 from the tubing 1. Pass the drain end of a syringe or other drainage device filled with saline solution through the small hole in the middle of the soft rubber plug 6. Drain the saline solution into the drainage passage 22 of the tubing 1, allowing it to enter the balloon 4. As the saline solution in the balloon 4 increases, it inflates and becomes lodged in the patient's bladder, limiting the tubing 1. Then, remove the syringe or other drainage device from the small hole in the soft rubber plug 6. The monitoring cap 8 is installed with the fine hole closed to prevent saline leakage. The monitoring cap housing 8 is then threaded onto the external thread 7, and the sealing ring 13 seals the gap between the monitoring cap housing 8 and the external thread 7. The fine tube 14 passes through the fine hole in the middle of the soft rubber plug 6. Then, the saline in the drainage passage 22 of the tubing 1 passes through the fine tube 14 and enters the transparent top cover 9, causing the float 11 to float up and the compression spring 12 to contract. The float 11 then blocks the warning post 10. When the balloon 4 leaks, the pressure in the balloon 4 and the drainage passage 22 decreases. The elasticity of the compression spring 12 causes the float 11 to fall, exposing the warning post 10 and alerting medical personnel, thereby improving the practicality of the catheter. Example

[0017] like Figures 1 to 7 As shown, a urinary catheter includes a tubing 1, the tubing 1 having a drainage passage 21 inside; it also includes a limiting structure, a flushing structure and a guiding structure, the limiting structure and the flushing structure being installed on the tubing 1, and the guiding structure being located in the tubing 1. The guiding structure guides the tubing 1, the tubing 1 guides the urine flow, the limiting structure limits the tubing 1, and the flushing structure guides the flushing fluid. The guiding structure includes a guide rod 2 and a guide rod end plug 3, with the guide rod end plug 3 mounted on the guide rod 2; The limiting structure includes a balloon 4, a pressure monitoring cap 5, a soft rubber plug 6, and an external thread 7. The inside of the tubing 1 is provided with a drainage passage 22. The balloon 4 is fitted onto one end of the tubing 1 and is connected to the drainage passage 22 inside the tubing 1. The water injection port of the drainage passage 22 is provided with an external thread 7. The soft rubber plug 6 is interference-fitted into the water injection port of the drainage passage 22, and a fine hole is provided in the middle of the soft rubber plug 6. The pressure monitoring cap 5 is threaded onto the external thread 7. The pressure monitoring cap 5 includes a monitoring cap shell 8, a transparent top cover 9, a warning post 10, a float 11, a compression spring 12, and a sealing ring 13. A thin tube 14 is provided in the middle of the monitoring cap shell 8. The transparent top cover 9 is installed on the top of the monitoring cap shell 8, and the thin tube 14 communicates with the interior of the transparent top cover 9. The float 11 is slidably installed in the transparent top cover 9. The warning post 10 is installed on the top inside the transparent top cover 9 and is fixedly installed on the top inside the transparent top cover 9. The warning post 10 is located in the float 11. The compression spring 12 is installed in the warning post 10. The sealing ring 13 is fitted onto the thin tube 14. The balloon 4 has a gradually varying wall thickness structure distributed along the axial direction, and the wall thickness value of the bottom region of the balloon 4 is less than the wall thickness value of the top region. The wall thickness increases continuously from the bottom to the top. After the balloon 4 is inflated, the bottom is arc-shaped and the top is planar. The flushing structure includes a sealing cap 15, and the inside of the hose 1 is provided with a drainage passage 3 23. The water injection end of the drainage passage 3 is provided with an external thread 2 16, and the sealing cap 15 is threadedly installed on the external thread 2 16. The sealing cap 15 includes a sealing cap housing 17, a sealing block 18, and a sealing ring 19. A thin tube 20 is provided in the middle of the sealing cap housing 17. The sealing block 18 is installed on the top of the sealing cap housing 17, and the sealing ring 19 is fitted onto the thin tube 20. Insert the guide rod 2 into the tubing 1 to support it. Apply lubricant to the surface of the tubing 1. Then, insert one end of the tubing 1 through the patient's urethra into the patient's bladder. Remove the guide rod 2 from the tubing 1. Pass the end of a syringe or other drainage device filled with saline solution through the small hole in the middle of the soft rubber plug 6. Drain the saline solution into the drainage passage 22 of the tubing 1 through the syringe or other drainage device, allowing the saline solution to enter the balloon 4. As the saline solution in the balloon 4 increases, the balloon 4 inflates and becomes lodged in the patient's bladder, limiting the tubing 1. Then, remove the syringe or other drainage device from the small hole of the soft rubber plug 6. Because the soft rubber plug 6 is interference-fitted, the small hole closes, preventing saline solution from draining. Finally, thread the monitoring cap housing 8 onto the external thread 7, ensuring the sealing ring 13 is aligned with the monitoring cap housing. The gap between the body 8 and the external thread 7 is sealed, allowing the thin tube 14 to pass through the small hole in the middle of the soft rubber plug 6. Then, the saline in the drainage passage 22 of the tubing 1 passes through the thin tube 14 and enters the transparent cap 9, causing the float 11 to float up and the compression spring 12 to contract. The float 11 covers the warning post 10. When the balloon 4 leaks, the pressure in the balloon 4 and the drainage passage 22 decreases. The elasticity of the compression spring 12 causes the float 11 to fall down, exposing the warning post 10 to remind medical personnel. When the patient's bladder needs to be flushed, the flushing device punctures the sealing block 18 and discharges the flushing medication into the drainage passage 3 23 of the tubing 1. The flushing medication is then discharged into the patient's bladder through the drainage passage 3 23. This allows the flushing device to be repeatedly connected and disconnected from the pressure monitoring cap 5 for intermittent flushing, thereby improving the practicality of the catheter.

[0018] The tubing 1 of the urinary catheter of this utility model is purchased from the market. Technicians in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A urinary catheter comprising a skin tube (1), an inside of the skin tube (1) being provided with a drainage passage one (21); characterized in that, It also includes a limiting structure, a flushing structure and a guiding structure. The limiting structure and the flushing structure are both installed on the tubing (1), and the guiding structure is located in the tubing (1). The guiding structure guides the tubing (1), the tubing (1) guides the urine, the limiting structure limits the tubing (1), and the flushing structure guides the flushing fluid. The guiding structure includes a guide rod (2) and a guide rod end plug (3), with the guide rod end plug (3) mounted on the guide rod (2); The limiting structure includes a balloon (4), a pressure monitoring cap (5), a soft rubber plug (6), and an external thread (7). The tubing (1) has a drainage passage (22) inside. The balloon (4) is fitted onto one end of the tubing (1) and is connected to the drainage passage (22) inside the tubing (1). The water injection port of the drainage passage (22) is provided with an external thread (7). The soft rubber plug (6) is interference-fitted into the water injection port of the drainage passage (22) and has a fine hole in the middle. The pressure monitoring cap (5) is threaded onto the external thread (7).

2. A urinary catheter as claimed in claim 1, characterized in that The pressure monitoring cap (5) includes a monitoring cap housing (8), a transparent top cover (9), a warning post (10), a float (11), a compression spring (12), and a sealing ring (13). A thin tube (14) is provided in the middle of the monitoring cap housing (8). The transparent top cover (9) is installed on the top of the monitoring cap housing (8), and the thin tube (14) communicates with the interior of the transparent top cover (9). The float (11) is slidably installed in the transparent top cover (9). The warning post (10) is installed on the top inside the transparent top cover (9). The warning post (10) is fixedly installed on the top inside the transparent top cover (9), and the warning post (10) is located in the float (11). The compression spring (12) is installed in the warning post (10), and the sealing ring (13) is fitted on the thin tube (14).

3. A urinary catheter as defined in claim 1, characterized in that The balloon (4) has a gradually varying wall thickness structure distributed along the axial direction, and the wall thickness value of the bottom region of the balloon (4) is less than that of the top region. The wall thickness increases continuously from the bottom to the top. After the balloon (4) is inflated, the bottom is arc-shaped and the top is planar.

4. A urinary catheter as defined in claim 1, characterized in that The flushing structure includes a plug cap (15), and the inside of the tubing (1) is provided with a third drain passage (23). The water injection end of the third drain passage is provided with an external thread (16), and the plug cap (15) is threaded onto the external thread (16).

5. A urinary catheter as defined in claim 4, characterized in that The sealing cap (15) includes a sealing cap housing (17), a sealing block (18), and a sealing ring (19). A thin tube (20) is provided in the middle of the sealing cap housing (17). The sealing block (18) is installed on the top of the sealing cap housing (17), and the sealing ring (19) is fitted onto the thin tube (20).

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