Urethral catheter dredging device
By designing a catheter dredging device, the operational problems in catheter blockage are solved, convenient dredging and aspiration are achieved, the risk of acute urinary retention is reduced, and the safety of the use and operation stability of the catheter is improved.
Patent Information
- Application Number
- CN202421893878.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing catheter lacks rigid structural support when dealing with blockage, is difficult to aspirate and does not match the connection with the syringe, which leads to difficult operation and risk of acute urinary retention.
A catheter clearance device is designed, including a clearance catheter and a connector. The clearance catheter has a tapered part and a flushing hole. The connector has a catheter channel. It is used in conjunction with a syringe to achieve convenient flushing and suction operations.
It improves the convenience and safety of catheter clearance, reduces the risk of acute urinary retention, simplifies the operation process, and enhances sealing and stability.
Smart Images

Figure CN223263245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urinary catheter instruments, in particular to a urinary catheter dredging device. Background Art
[0002] Indwelling catheterization is a common treatment procedure in urology. However, it is very easy for the drainage hole of the catheter to be blocked after urethral, prostate, and bladder surgery, as well as for long-term indwelling catheterization. The blockage is usually a blood clot or flocs formed by tissue fragments and bladder secretions. The main treatment method is suction and flushing of the catheter. However, such a treatment method is difficult to operate for current ordinary catheters. On the one hand, the catheter lacks rigid structural support, and the tube body collapses during suction and cannot be suctioned; on the other hand, the connection port between the catheter and the urine collection bag does not match the syringe, which is extremely difficult to operate during flushing. If the catheter is replaced directly, it will be extremely difficult for the patient, and there is a risk that the catheter cannot be reinserted, causing the patient to suffer from acute urinary retention. Therefore, it is necessary to invent a device specifically for cleaning catheters. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a urinary catheter dredging device, which has the advantages of convenient dredging of urinary catheters and easy use.
[0004] According to the embodiment of the utility model, the urinary catheter unclogging device includes a unclogging catheter and a connector. The outer surface of the unclogging catheter is provided with a scale along the extension direction of the unclogging catheter. The first end of the unclogging catheter has a tapered portion for entering the urinary catheter. The first end of the unclogging catheter is provided with a flushing hole. The second end of the unclogging catheter has a connecting portion for matching with a syringe. The connector includes a penetration section, a transparent section and a tapered section connected in sequence. A catheter channel is provided in the center of the penetration section, the transparent section and the tapered section to connect the penetration section, the transparent section and the tapered section. The catheter channel is used for the unclogging catheter to pass through.
[0005] The urinary catheter unclogging device according to the embodiment of the utility model has the advantages of being convenient for unclogging the urinary catheter and being easy to use.
[0006] In some embodiments, the diameter of the tapered section gradually increases from the tapered section toward the penetration section until it becomes the same as the diameter of the transparent section.
[0007] In some embodiments, a first rubber stopper is provided in the penetration section, a through hole is provided in the first rubber stopper, and the through hole constitutes part of the catheter channel.
[0008] In some embodiments, the diameter of the through hole is smaller than the diameter of the dredging tube so as to improve the airtightness between the dredging tube and the rubber stopper.
[0009] In some embodiments, the length of the first rubber stopper is the same as the length of the penetration section.
[0010] In some embodiments, a plurality of annular protrusions are provided on the surface of the tapered section, and the annular protrusions are used to increase the contact area between the tapered section and the urinary catheter.
[0011] In some embodiments, the conical portion is made of rigid plastic and has four flushing holes disposed thereon.
[0012] In some embodiments, the length of the tapered portion is greater than or equal to 3 cm.
[0013] In some embodiments, the diameter of the unblocking catheter is smaller than the inner diameter of the urinary catheter, and the surface of the unblocking catheter is coated with a water-based lubricant.
[0014] In some embodiments, the connecting portion is a second rubber stopper, and the second rubber stopper has an opening for connecting to a syringe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the usage status of the urinary catheter dredging device according to an embodiment of the present utility model.
[0016] Figure 2 It is a structural schematic diagram of the dredging catheter of the urinary catheter dredging device according to an embodiment of the present utility model.
[0017] Figure 3 It is a structural schematic diagram of the connector of the urinary catheter dredging device according to an embodiment of the present utility model.
[0018] Reference numerals:
[0019] 1. Unclogging catheter; 11. Conical portion; 12. Flushing hole; 13. Connecting portion;
[0020] 2. Connector; 21. Penetration section; 22. Transparent section; 23. Conical section;
[0021] 3. Catheter. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0023] According to the urinary catheter 3 unclogging device of the embodiment of the present invention, the urinary catheter 3 unclogging device includes a unclogging catheter 1 and a connector 2. The outer surface of the unclogging catheter 1 is provided with a scale along the extension direction of the unclogging catheter 1. The first end of the unclogging catheter 1 has a tapered portion 11 for entering the urinary catheter 3. The first end of the unclogging catheter 1 is provided with a flushing hole 12. The second end of the unclogging catheter 1 has a connecting portion 13 for matching with a syringe. The connector 2 includes a penetration section 21, a transparent section 22 and a tapered section 23 connected in sequence. A catheter channel is provided in the center of the penetration section 21, the transparent section 22 and the tapered section 23 to connect the penetration section 21, the transparent section 22 and the tapered section 23. The catheter channel is used for the unclogging catheter 1 to pass through. The dredging catheter 1 is made of high-toughness plastic material, and the scale on the surface makes it easy to estimate the length of the urinary catheter. The dredging catheter 1 and connector 2 are used together, which makes it easy to move the dredging catheter 1 relative to the connector 2. Normal saline is injected into the urinary catheter through the dredging catheter 1 to flush and clean the blockage. After flushing, aspiration is performed. If the aspiration is normal, the dredging is successful. If it is not smooth, flushing can be repeated. Pay attention to the bladder capacity to avoid flushing too much liquid. Aspiration can also be performed. If the blockage is fragile or soft, it can be directly aspirated into the syringe. If the syringe aspiration resistance is too large, it indicates that the blockage has been aspirated into the drainage port of the dredging catheter 1. The syringe can be kept in a negative pressure state and the dredging catheter 1 can be withdrawn (keeping the connector 2 connected to the urinary catheter). The tip of the dredging catheter 1 can be observed through the transparent part of the connector 2 to see if there is any blockage. At this time, the connector 2 can be pulled out, the dredging catheter 1 can be cleaned, and then reconnected. Aspiration or flushing is repeated until the bladder is unobstructed. The bladder should be palpated before the operation. If there is little urine in the bladder, flushing is recommended first. After the bladder is full, an attempt can be made to aspirate the blockage in the bladder.
[0024] The urinary catheter 3 unclogging device according to the embodiment of the utility model has the advantages of being convenient for unclogging the urinary catheter and being easy to use.
[0025] In some embodiments, the diameter of the tapered section 23 gradually increases from the tapered section 23 toward the penetrating section 21 to the same as the diameter of the transparent section 22 .
[0026] Specifically, the gradually increasing diameter of the tapered section 23 allows for a smooth transition from the tapered section 23 to the transparent section 22, which helps provide uniform pressure when the connector 2 is connected to the catheter 3, reducing damage to the catheter 3. This improves the stability and sealing of the connection, while also protecting the integrity of the catheter 3.
[0027] In some embodiments, a first rubber stopper is provided in the penetration section 21 , a through hole is provided in the first rubber stopper, and the through hole constitutes a part of the catheter channel.
[0028] Specifically, the presence of the rubber stopper can prevent liquid leakage between the urinary catheter 3 and the connector 2, while the through hole ensures the continuity of the catheter channel, thereby enhancing the sealing performance of the device, preventing leakage of the flushing liquid, and maintaining clean operation.
[0029] In some embodiments, the diameter of the through hole is smaller than the diameter of the dredging catheter 1 to improve the airtightness between the dredging catheter 1 and the first rubber stopper.
[0030] Specifically, the diameter of the through hole is slightly smaller than the diameter of the dredging catheter 1. The elasticity of the first rubber stopper increases the static friction between the dredging catheter 1 and the first rubber stopper, thereby improving the sealing effect, reducing the possibility of leakage during operation, and ensuring smooth flushing or suction operations.
[0031] In some embodiments, the length of the first rubber stopper is the same as the length of the penetration section 21 .
[0032] Specifically, the length of the first rubber stopper is equal to the length of the penetration section 21, ensuring that the rubber stopper can completely fill the penetration section 21, avoiding gaps and leakage caused by length mismatch. The first rubber stopper fills the interior of the penetration section 21, further enhancing the sealing and reducing the risk of liquid leakage.
[0033] In some embodiments, a plurality of annular protrusions are provided on the surface of the tapered section 23 , and the annular protrusions are used to increase the contact area between the tapered section 23 and the urinary catheter 3 .
[0034] Specifically, the annular protrusion can better adapt to the inner diameter of the catheter 3 and provide a stable connection. Multiple annular protrusions can meet the connection requirements of catheters 3 of different specifications. The annular protrusion increases the firmness of the connection and prevents relative slippage between the catheter 3 and the connector 2.
[0035] In some embodiments, the conical portion 11 is made of rigid plastic, and four flushing holes 12 are provided on the conical portion 11 .
[0036] Specifically, the rigid plastic ensures the shape of the tapered portion 11 is stable, while the flushing holes 12 help evenly distribute the flushing liquid, improving flushing efficiency and ensuring that blockages are effectively removed. The rigid, unbendable plastic prevents the tapered portion 11 from passing through the drainage hole after entering the urinary catheter and potentially damaging the bladder. The tapered shape facilitates urinary catheter entry.
[0037] In some embodiments, the length of the tapered portion 11 is greater than or equal to 3 cm.
[0038] Specifically, the longer tapered portion 11 can better guide the dredging catheter 1 into the urinary catheter 3, reducing the difficulty of the operation and improving the accuracy and safety of the operation.
[0039] In some embodiments, the diameter of the unblocking catheter 1 is smaller than the inner diameter of the urinary catheter, and the surface of the unblocking catheter 1 is coated with a water-based lubricant.
[0040] Specifically, the diameter of the dredging catheter 1 is slightly smaller than the inner diameter of the urinary catheter, ensuring that the dredging catheter 1 can smoothly enter the urinary catheter 3. At the same time, the water-based lubricant reduces friction and protects the inner wall of the urinary catheter 3, thereby reducing the patient's discomfort and the risk of damage to the urinary catheter 3.
[0041] In some embodiments, the connecting portion 13 is a second rubber stopper, and the opening of the second rubber stopper is used to connect with the syringe.
[0042] Specifically, the tail end of the connecting portion 13 is tapered and expanded, and a rubber stopper is provided to facilitate connection to various syringes. Its structure is similar to the water inlet of a conventional dual-lumen urinary catheter 3. The opening of the second rubber stopper facilitates connection to the syringe while maintaining a good seal. This simplifies the operation steps and improves the convenience of flushing and aspiration operations.
[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0047] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A urinary catheter dredging device, characterized in that: include: A dredging catheter, wherein the outer surface of the dredging catheter is provided with scales along the extension direction of the dredging catheter, the first end of the dredging catheter has a tapered portion for entering a urinary catheter, the first end of the dredging catheter is provided with a flushing hole, and the second end of the dredging catheter has a connecting portion for connecting with a syringe; A connector, the connector comprising a penetration section, a transparent section and a tapered section connected in sequence, wherein a catheter channel is provided in the center of the penetration section, the transparent section and the tapered section and connects the penetration section, the transparent section and the tapered section, and the catheter channel is used for the passage of the dredging catheter.
2. The urinary catheter dredging device according to claim 1, characterized in that: The tapered section drives the diameter to gradually increase from the tapered section toward the penetration section until it becomes the same as the diameter of the transparent section.
3. The urinary catheter unclogging device according to claim 1, characterized in that: A first rubber plug is provided in the penetration section, a through hole is provided in the first rubber plug, and the through hole constitutes a part of the catheter channel.
4. The urinary catheter dredging device according to claim 3, characterized in that: The diameter of the through hole is smaller than the diameter of the dredging tube so as to improve the airtightness between the dredging tube and the rubber stopper.
5. The urinary catheter unclogging device according to claim 3, characterized in that: The length of the first rubber stopper is the same as the length of the penetration section.
6. The urinary catheter unclogging device according to claim 1, characterized in that: A plurality of annular protrusions are provided on the surface of the tapered section, and the annular protrusions are used to increase the contact area between the tapered section and the urinary catheter.
7. The urinary catheter unclogging device according to claim 1, characterized in that: The conical portion is made of rigid plastic and is provided with four flushing holes.
8. The urinary catheter unclogging device according to claim 1, characterized in that: The length of the tapered portion is greater than or equal to 3 cm.
9. The urinary catheter unclogging device according to claim 1, characterized in that: The diameter of the dredging catheter is smaller than the inner diameter of the urinary catheter, and the surface of the dredging catheter is coated with a water-based lubricant.
10. The urinary catheter unclogging device according to claim 1, characterized in that: The connecting portion is a second rubber stopper, and the opening of the second rubber stopper is used for connecting with a syringe.