Visual variable-diameter catheter

Abstract

The utility model relates to the field of medical instruments, in particular to a visual reducing catheter which comprises a catheter body, one end of the catheter body is provided with a urine bag connector, and the other end of the catheter body is provided with a catheterization hole and a balloon used for limiting the catheterization hole in the bladder. A first connecting pipe and a second connecting pipe are arranged on the left side and the right side of the catheter body respectively, and a first charging connector and a second charging connector are arranged at the head of the first connecting pipe; a side air bag is sleeved on the catheter body between the balloon and the roots of the first connecting tube and the second connecting tube, the first inflating nozzle is communicated with the side air bag, and the second inflating nozzle is communicated with the balloon; a visual assembly is arranged on the second connecting pipe and used for monitoring and displaying the air pressure in the side air bag in real time. The catheter not only has a reducing function, but also has the function of monitoring the pressure of the ureter part entering the body of a patient in real time, visualization is achieved, and the pressure can be dynamically adjusted according to the actual requirements of the patient.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a visualized variable diameter urinary catheter. Background Technology

[0002] In the field of medical devices, urinary catheters are a common medical assistive device widely used for patients with difficulty urinating or who require prolonged bed rest. The main function of a urinary catheter is to drain urine from the bladder to the outside of the body through insertion into the urethra, thereby avoiding urine retention and potential complications. However, although the design and technology of existing urinary catheters are relatively mature, many problems still exist in practical applications, especially regarding catheter selection, usage, and patient comfort.

[0003] Currently, the sizes of urinary catheters used in clinical practice range from 6 to 24 Fr, where 1 mm = 3 Fr. Each urinary catheter has a fixed size. In clinical practice, medical staff usually choose the size of the urinary catheter based solely on clinical experience or the patient's general condition (such as age, gender, weight, etc.). This selection method often lacks accuracy and personalization, and is prone to the following problems: (1) Problems caused by excessively large urinary catheter size: When the selected urinary catheter size is too large, it will put excessive pressure on the patient's urethra, increasing the patient's pain and discomfort. Long-term use of excessively large urinary catheters may also lead to urethral damage, inflammation or infection, posing a further threat to the patient's health. (2) Problems caused by excessively small urinary catheter size: Conversely, when the selected urinary catheter size is too small, it may not be able to completely close the urethra, leading to urine leakage, requiring re-insertion of the catheter. This will not only affect the drainage effect of urine, but may also increase the risk of urinary tract infection. In severe cases, urine leakage may also lead to waste of medical resources and increased medical costs.

[0004] Dedicated to addressing practical problems, the inventors searched and reviewed a large amount of existing technology related to urinary catheters. However, most existing urinary catheters have certain shortcomings. For example, patent CN114681770B, entitled "A Painless, Ultra-Slippery, Antibacterial Urinary Catheter," whose main components include a balloon, a catheterization device, a catheter, a sampling tube, a connecting tube, an inflation and water injection tube, and a draining tube, primarily aims to solve the problem of postoperative bleeding in urology patients. Due to the large size of the blood clots, blockage can occur during drainage, preventing timely bladder emptying and leading to excessive urine accumulation in the bladder, causing harm. This patent also lacks the ability to adjust the catheter size for different patients, resulting in poor versatility. For example, patent CN101292925B, entitled "A Leak-Proof Urinary Catheter," includes a catheter with an inlet at the head and a outlet at the tail. The catheter head also has a bladder-fixing balloon connected to an inflation nozzle via an inflation tube. A urine-absorbing bag is fitted onto the catheter, comprising an outer waterproof layer, an outer seepage layer, and a middle absorbent layer. The outer waterproof layer is away from the catheter, the outer seepage layer is close to the catheter, and the middle absorbent layer is located between the outer waterproof layer and the outer seepage layer. The position of the urine-absorbing bag on the catheter is adjustable. This patent prevents urine from leaking from the urethra by blocking the urine outlet with the urine-absorbing bag. While this method effectively absorbs and prevents urine leakage, its capacity is limited. When the urine-absorbing bag is saturated, if it is not replaced or emptied in time, urine may overflow, leading to leakage.

[0005] Based on the above, this utility model proposes a visual variable diameter urinary catheter, which can effectively solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a visualized variable-diameter urinary catheter. This catheter not only features variable diameter functionality, making it suitable for various types of patients, but also allows for real-time monitoring of the pressure within the catheter portion inside the patient's body, providing visualization. Furthermore, it can dynamically adjust the pressure according to the patient's actual needs, resolving various problems caused by inaccurate catheter selection.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A visualized variable-diameter urinary catheter includes a catheter body, one end of which has a urine bag interface, and the other end has a catheter port and a balloon for confining the catheter port within the bladder. A first connecting tube and a second connecting tube are respectively provided on the left and right sides of the catheter body. The head of the first connecting tube has a first inflation nozzle and a second inflation nozzle. A side balloon is fitted onto the catheter body between the balloon and the base of the first and second connecting tubes. The first inflation nozzle communicates with the side balloon, and the second inflation nozzle communicates with the balloon. A visualization component is provided on the second connecting tube for real-time monitoring and display of the air pressure within the side balloon.

[0009] As a further optimization of this utility model, the visualization component includes a pressure display, a pressure sensing line, and a pressure probe. The pressure display is disposed at the head of the second connecting tube, and the pressure probe is disposed inside the side airbag. One end of the pressure sensing line is connected to the pressure display, and the other end extends into the side airbag and is connected to the pressure probe.

[0010] As a further optimization of this utility model, the pressure sensing wire passes through the inside of the second connecting tube and the third wall hole on the catheter body and is connected to the pressure probe.

[0011] As a further optimization of this utility model, an O-ring is provided at the connection between the pressure sensing line and the side airbag for sealing.

[0012] As a further optimization of this utility model, the side airbag is cylindrical in shape, and the pressure probe is fixed on the inner wall of the side airbag.

[0013] As a further optimization of this utility model, the pressure display is an electronic display with its own power supply or an external power supply.

[0014] As a further optimization of this utility model, the pressure sensing wire is attached and fixed to the inner wall of the second connecting pipe.

[0015] As a further optimization of this utility model, the first inflation nozzle is connected to the side airbag through the first air supply pipe. One end of the first air supply pipe is connected to the first inflation nozzle, and the other end passes through the first wall hole on the catheter body and is connected to the side airbag.

[0016] As a further optimization of this utility model, the second inflation nozzle is connected to the balloon through the second air supply tube. One end of the second air supply tube is connected to the second inflation nozzle, and the other end passes through the second wall hole on the catheter body and is connected to the balloon.

[0017] As a further optimization of this utility model, the two ends of the side airbag are fixedly connected to the outer wall of the catheter body.

[0018] This invention proposes a specially designed, visualized variable-diameter urinary catheter. This catheter combines the advantages of visualization and variable diameter, and is specifically designed for the urethra, a unique location. The following is a detailed description of the advantages and beneficial effects of this invention:

[0019] (1) This utility model, through the design of the side balloon, allows the size of the urinary catheter to be adjusted according to the patient's actual situation during use, thereby avoiding problems caused by the urinary catheter being too large or too small. This design improves the accuracy and personalization of urinary catheter use, reduces patient pain and discomfort, and lowers the risk of urethral injury, inflammation, or infection.

[0020] (2) The addition of the visualization component allows medical staff to monitor the air pressure inside the side balloon in real time. When the side balloon leaks (the air pressure decreases), the pressure inside the side balloon and the corresponding catheter size can be maintained by re-inflating the side balloon to ensure that there is no leakage. This real-time monitoring function helps to adjust the size of the catheter in a timely manner, improves patient comfort, and reduces potential health risks.

[0021] (3) Because the air pressure of the side balloon can be monitored in real time, medical staff can identify and deal with potential problems such as urine leakage more quickly, thereby improving the efficiency of catheter use. In addition, this design also helps to reduce the waste of medical resources and the increase in medical costs caused by urine leakage.

[0022] (4) The structure of this utility model is relatively simple, easy to operate and maintain. Medical staff can easily inflate or deflate the side balloon through the first inflation nozzle to adjust the size of the catheter. At the same time, the pressure display of the visualization component provides intuitive and easy-to-read information display, enabling medical staff to quickly understand the working status of the catheter.

[0023] (5) Because it can precisely adjust the size of the urinary catheter and monitor its working status in real time, this invention helps reduce the risk of complications caused by improper use of the urinary catheter, such as urethral injury, inflammation, and infection. This is especially important for patients who need to use urinary catheters for extended periods. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the urinary catheter of this utility model.

[0025] Figure 2 for Figure 1 A schematic diagram of the longitudinal cross-sectional structure at point A.

[0026] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure along the BB direction.

[0027] In the diagram: 1. Catheter body; 2. Urine bag interface; 3. Catheter port; 4. Balloon; 5. First connecting tube; 6. Second connecting tube; 7. First inflation nozzle; 8. Second inflation nozzle; 9. Side balloon; 10. Visualization component; 101. Pressure display; 102. Pressure sensor line; 103. Pressure probe; 11. First air supply tube; 12. First wall hole; 13. Second air supply tube; 14. Second wall hole; 15. Third wall hole. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. For those skilled in the art, the omission of certain well-known structures and their descriptions in the drawings is understandable. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.

[0029] like Figures 1-3 As shown, this embodiment aims to provide a visualized variable-diameter urinary catheter. This catheter can dynamically adjust its size according to the actual urethral condition of the patient, and the pressure inside the catheter can be monitored in real time through the visualization component 10 to ensure accuracy and safety in use. The structure of this urinary catheter mainly includes a catheter body 1, a first connecting tube 5, a second connecting tube 6, a balloon 4, a side balloon 9, and a visualization component 10.

[0030] In some examples, the catheter body 1 is made of medical-grade plastic material with good flexibility and biocompatibility, such as silicone or rubber. Common catheter sizes range from 6F to 24F, with wall thicknesses generally between 0.8 mm and 2 mm. One end of the catheter body 1 has a urine bag interface 2 for connecting to a urine collection bag, and the other end has a catheter port 3 and a balloon 4. The balloon 4 is used to secure the catheter port 3 in the bladder to prevent dislodgement. Further, such as... Figure 3 As shown, in order to better integrate and arrange various pipelines, a first wall hole 12, a second wall hole 14, and a third wall hole 15 are provided along the length of the catheter body 1, which are used to install the first air supply pipe 11, the second air supply pipe 13, and the pressure sensing wire 102, respectively. The diameter of the wall hole is slightly larger than the diameter of the various pipelines to facilitate the passage of the various pipelines.

[0031] In some examples, such as Figure 1As shown, the catheter body 1 has a first connecting tube 5 and a second connecting tube 6 on its left and right sides, respectively, for connecting the inflation device and the visualization component 10. The head of the first connecting tube 5 has a first inflation nozzle 7 and a second inflation nozzle 8, used to inflate the side airbag 9 and the balloon 4, respectively. Figure 3 As shown, the first inflation nozzle 7 is connected to the side balloon 9 via the first air supply tube 11. One end of the first air supply tube 11 is connected to the first inflation nozzle 7, and the other end passes through the first wall hole 12 on the catheter body 1 and is connected to the side balloon 9. The second inflation nozzle 8 is connected to the balloon 4 via the second air supply tube 13. One end of the second air supply tube 13 is connected to the second inflation nozzle 8, and the other end passes through the second wall hole 14 on the catheter body 1 and is connected to the balloon 4.

[0032] In some examples, such as Figure 1 As shown, the side balloon 9 can be made of silicone or rubber, etc. The side balloon 9 is cylindrical in shape to facilitate uniform expansion after inflation, adapting to different patients' urethral diameters. The side balloon 9 is fitted onto the catheter body 1, located between the balloon 4 and the base of the first connecting tube 5 and the second connecting tube 6. The two ends of the side balloon 9 are fixedly connected to the outer wall of the catheter body 1 by adhesive or other fixing methods, thus preventing the side balloon 9 from slipping off during use. The side balloon 9 is connected to an external inflation device through the first inflation nozzle 7 and the first air delivery tube 11, allowing the catheter diameter to be adjusted by inflation or deflation.

[0033] In some examples, such as Figure 1 and Figure 2 As shown, the visualization component 10 includes a pressure display 101, a pressure sensing line 102, and a pressure probe 103. The pressure display 101 is located at the head of the second connecting tube 6, providing intuitive pressure readings. The pressure display 101 is preferably an electronic display, with its own power supply or an external power supply, ensuring continuous operation during surgery or nursing care. The specific structure and working principle of the electronic display can be conventionally selected. The pressure probe 103 is fixed to the inner wall of the side balloon 9 by adhesive or other means to prevent shaking during use. It is connected to the pressure display 101 via the pressure sensing line 102 to monitor the air pressure inside the side balloon 9 in real time. The pressure sensing line 102 is adhered and fixed to the inner wall of the second connecting tube 6 by adhesive or other means to ensure a stable connection and not affect the use of the catheter. The pressure sensing wire 102 passes through the inside of the second connecting tube 6 and the third wall hole 15 on the catheter body 1 and is connected to the pressure probe 103. An O-ring is provided at the connection between the pressure sensing wire 102 and the side airbag 9 to ensure airtightness, prevent gas leakage, and not affect the airtightness of the side airbag 9.

[0034] Based on the above-described structural design of the urinary catheter, this embodiment provides a method for using the urinary catheter, including:

[0035] Preliminary preparations:

[0036] Check the integrity of the catheter to ensure there is no breakage or air leakage. Insert the catheter into the patient's urethra until the balloon 4 reaches the bladder.

[0037] Inflation adjustment:

[0038] The balloon 4 is inflated and secured inside the bladder by the second inflation nozzle 8 and the second air inlet tube 13. The side balloon 9 is inflated by the first inflation nozzle 7 and the first air inlet tube 11, and the size of the catheter is adjusted according to the patient's urethral diameter.

[0039] Real-time monitoring:

[0040] Observe the reading on the pressure display 101 to ensure that the air pressure inside the side airbag 9 is within the safe range. If a drop in air pressure is detected (possibly caused by air leakage), promptly perform secondary inflation through the first inflation nozzle 7 to maintain the pressure inside the side airbag 9.

[0041] Follow-up care:

[0042] Regularly check the catheter's usage, including the readings on the pressure monitor 101 and the patient's comfort. Adjust the pressure of the side balloon 9 as needed to ensure the catheter is always adapted to the patient's urethral diameter.

[0043] The visualized variable-diameter urinary catheter of this embodiment has the following advantages:

[0044] Personalized Adjustment: The side balloon design allows for catheter size adjustment based on the patient's individual needs, improving accuracy and personalization. Real-time Monitoring: The visualization component monitors the air pressure within the side balloon in real time, helping to promptly identify and address potential problems such as air leaks or urine leakage. Enhanced Comfort: Precise size adjustment reduces patient pain and discomfort, lowering the risk of urethral injury, inflammation, or infection. Easy Operation and Maintenance: The simple design allows healthcare professionals to easily inflate and deflate the catheter via the inflation nozzle, while the visualization component provides intuitive and easy-to-read information.

[0045] In summary, the visualized variable diameter urinary catheter of this embodiment is of great significance in improving patient comfort, reducing the risk of complications, and improving nursing efficiency.

[0046] Based on the description and accompanying drawings of this utility model, those skilled in the art can easily manufacture or use a visual variable diameter urinary catheter of this utility model, and can produce the positive effects described in this utility model.

[0047] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0048] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A visualizing variable diameter urinary catheter comprising a catheter body (1) provided at one end with a urine bag interface (2) and at the other end with a urinary orifice (3) and a balloon (4) for restricting the urinary orifice (3) inside the urinary bladder, characterized in that: The catheter body (1) is provided with a first connecting tube (5) and a second connecting tube (6) on the left and right sides of the catheter body (1), respectively, a first inflation nozzle (7) and a second inflation nozzle (8) are arranged at the head of the first connecting tube (5); a side air bag (9) is sleeved on the catheter body (1) between the root of the first connecting tube (5) and the second connecting tube (6) and the balloon (4), the first inflation nozzle (7) is communicated with the side air bag (9), and the second inflation nozzle (8) is communicated with the balloon (4); a visualization assembly (10) is arranged on the second connecting tube (6), and the visualization assembly (10) is used for monitoring and displaying the air pressure in the side air bag (9) in real time.

2. The visualizing variable diameter urinary catheter of claim 1, wherein: The visualization assembly (10) comprises a pressure display (101), a pressure sensing line (102) and a pressure probe (103), the pressure display (101) is arranged at the head of the second connecting tube (6), and the pressure probe (103) is arranged inside the side air bag (9); one end of the pressure sensing line (102) is connected with the pressure display (101), and the other end is inserted into the side air bag (9) and connected with the pressure probe (103).

3. The visualizing variable diameter urinary catheter of claim 2, wherein: The pressure sensing line (102) is connected with the pressure probe (103) from the inside of the second connecting tube (6) and a third wall hole (15) on the catheter body (1).

4. The visualizing variable diameter urinary catheter of claim 2 or 3, wherein: An O-shaped sealing ring is arranged at the connection between the pressure sensing line (102) and the side air bag (9) for sealing.

5. The visualizing variable diameter urinary catheter of claim 2, wherein: The shape of the side air bag (9) is cylindrical, and the pressure probe (103) is fixed to the inner ring wall of the side air bag (9).

6. The visualizing variable diameter urinary catheter of claim 2, wherein: The pressure display (101) is an electronic display with a power supply or an external power supply.

7. The visualizing variable diameter urinary catheter of claim 2, wherein: The pressure sensing line (102) is fixed to the inner wall of the second connecting tube (6).

8. The visualizing variable diameter urinary catheter of claim 1, wherein: The first inflation nozzle (7) is communicated with the side air bag (9) through a first gas conveying tube (11), one end of the first gas conveying tube (11) is connected with the first inflation nozzle (7), and the other end penetrates a first wall hole (12) on the catheter body (1) and is connected with the side air bag (9).

9. The visualizing variable diameter urinary catheter of claim 1, wherein: The second inflation nozzle (8) is communicated with the balloon (4) through a second gas conveying tube (13), one end of the second gas conveying tube (13) is connected with the second inflation nozzle (8), and the other end penetrates a second wall hole (14) on the catheter body (1) and is connected with the balloon (4).

10. The visualizing variable diameter urinary catheter of claim 1, wherein: The side air bag (9) is fixedly connected with the outer wall of the catheter body (1) at the two ends.

Images