Disposable bladder irrigation connector
By designing a bladder irrigation connector with a switching structure, the risks of needle dislodgement and infection caused by needle puncture into the urinary catheter were eliminated, enabling a safe and smooth bladder irrigation process.
Patent Information
- Application Number
- CN202422817148.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing bladder irrigation methods, the needle piercing the urinary catheter poses a risk of dislodgement, increasing the patient's chance of infection, and also poses a risk of needlestick injury to medical staff, and compromises the airtight seal.
A disposable bladder irrigation connector was designed, which adopts a changeover switch structure. By tossing the handle, the arc-shaped baffle is controlled to close the infusion set or drainage tube interface, preventing the needle from piercing the catheter, ensuring airtightness, and reducing the risk of infection.
This technology enables bladder irrigation without the need for needle insertion into a urinary catheter, reducing the risk of infection for patients, protecting the safety of healthcare workers, and ensuring the smooth progress of the irrigation process.
Smart Images
Figure CN223831509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a disposable bladder irrigation connector. Background Technology
[0002] Bladder irrigation is a method of instilling a solution into the bladder using a catheter, and then draining the instilled fluid using the siphon principle. It is mainly used to maintain unobstructed urine drainage, remove foreign objects from the bladder, treat bladder diseases, and differentiate between upper and lower urinary tract infections. Currently, clinically, bladder irrigation is performed using an infusion set following the intravenous infusion protocol: the needle is inserted into the catheter lumen, ensuring it does not extend beyond the bifurcation point, secured with adhesive tape, the regulator is opened for irrigation, and after completion, the regulator is closed, the adhesive tape is loosened, and the needle is removed. Existing bladder irrigation methods have the following problems: First, the current method requires precise needle insertion, as there is a risk of the needle piercing the end of the "Y"-shaped balloon of the catheter, leading to catheter dislodgement. Second, there is a risk of needle stick injury to healthcare workers during needle insertion. Third, needle insertion into the catheter disrupts its seal, increasing the patient's risk of infection. Utility Model Content
[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0004] To address the technical problems mentioned in the background section above, some embodiments of this application provide a disposable bladder irrigation connector, including a cylindrical shell, an infusion set interface disposed on the cylindrical shell, a urinary catheter interface disposed on the cylindrical shell, a drainage tube interface disposed on the cylindrical shell, and a changeover switch disposed on the cylindrical shell. The changeover switch includes a support rod fixedly disposed inside the cylindrical shell, a support plate fixedly disposed on the support rod, a stop rod rotatably disposed on the support rod, a connecting rod rotatably disposed on the support rod at one end, a first spring rotatably disposed on the stop rod and the connecting rod at both ends respectively, an arc-shaped baffle fixedly disposed at one end of the connecting rod, a first limiting plate fixedly disposed inside the cylindrical shell, a second limiting plate fixedly disposed inside the cylindrical shell, a first limiting rod fixedly disposed on the support plate, a second limiting rod fixedly disposed on the support plate, and a rotating assembly disposed on the cylindrical shell.
[0005] Specifically, the rotating assembly includes a rotating shaft rotatably mounted on a support rod, a handle fixedly mounted on one end of the rotating shaft, an L-shaped lever fixedly mounted on the other end of the rotating shaft, a first fixing rod fixedly mounted on one end of the L-shaped lever, and a second fixing rod fixedly mounted on the other end of the L-shaped lever; the handle is located outside the cylindrical outer shell; and the L-shaped lever is located inside the cylindrical outer shell.
[0006] Specifically, the support plate has multiple rounded corners.
[0007] Specifically, the infusion set interface includes an infusion set interface body, an external threaded connector fixedly disposed within the infusion set interface body, a sealing ring movably disposed within the infusion set interface body, and a second spring with its two ends respectively fixed to the external threaded connector and the sealing ring.
[0008] Specifically, the catheter interface has external threads.
[0009] Specifically, the circumference of the arc-shaped baffle is half the circumference of the cylindrical shell.
[0010] The beneficial effects of this utility model are:
[0011] Connect the infusion set to the infusion set interface and the urinary catheter interface to the urinary catheter. Turn the handle counterclockwise to rotate the shaft, which in turn rotates the L-shaped lever. During the rotation of the L-shaped lever, the second fixed rod pushes the stop lever to rotate counterclockwise until the stop lever contacts the first limit rod. The spring then drives the connecting rod to rotate clockwise around the support rod, causing the arc-shaped baffle to rotate in the same direction until it is stopped by the first limit plate and stops moving. At this point, the arc-shaped baffle blocks the connection between the drainage tube interface and the cylindrical shell. Open the infusion set regulator, and the flushing fluid enters the cylindrical shell through the infusion set interface and then enters the urinary catheter interface to begin flushing the bladder. After all the flushing fluid has entered the patient's bladder, close the infusion set regulator and connect the drainage tube interface to the drainage tube. When the handle is turned, the first fixed rod pushes the stop bar to rotate clockwise. After being blocked by the second limiting rod, the connecting rod rotates counterclockwise, and the arc-shaped baffle rotates counterclockwise until the arc-shaped baffle abuts against the first limiting plate. At this point, the passage between the infusion set interface and the cylindrical shell is closed, and the liquid flows out from the drainage tube interface, completing the flushing of the patient's bladder. Using a bladder flushing connector with the above structure avoids the need to insert a needle into the catheter, reducing the patient's chance of infection and protecting medical staff. Simply turning the handle, without precise control of the turning angle, will cause the arc-shaped baffle to block the infusion set interface or the drainage tube interface, preventing the infusion set interface and the drainage tube interface from connecting due to improper turning. The flushing fluid flows directly out from the drainage tube, ensuring the smooth progress of the bladder flushing process. Attached Figure Description
[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0014] In the attached diagram:
[0015] Figure 1 This is a structural diagram of the present invention;
[0016] Figure 2 This is a side view of the present invention;
[0017] Figure 3 for Figure 2 AA-line sectional view;
[0018] Figure 4 for Figure 2 BB line section view;
[0019] Figure 5 This is a structural diagram of the changeover switch in this utility model. Detailed Implementation
[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0021] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0022] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0024] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] Reference Figure 1-5As shown, the disposable bladder irrigation connector of this utility model includes a cylindrical shell 1, an infusion tube interface 2 disposed on the cylindrical shell 1, a urinary catheter interface 3 disposed on the cylindrical shell 1, a drainage tube interface 4 disposed on the cylindrical shell 1, and a changeover switch 5 disposed on the cylindrical shell 1. The changeover switch 5 includes a support rod 51 fixedly disposed inside the cylindrical shell 1, a support plate 52 fixedly disposed on the support rod 51, a stop rod 53 rotatably disposed on the support rod 51, a connecting rod 54 rotatably disposed on the support rod 51 at one end, a spring 55 rotatably disposed on the stop rod 53 and the connecting rod 54 at both ends respectively, an arc-shaped baffle 56 fixedly disposed on one end of the connecting rod 53, a first limiting plate 57 fixedly disposed inside the cylindrical shell 1, a second limiting plate 58 fixedly disposed inside the cylindrical shell 1, a first limiting rod 59 fixedly disposed on the support plate 52, a second limiting rod 60 fixedly disposed on the support plate 52, and a rotating assembly 61 disposed on the cylindrical shell 1.
[0026] Specifically, the rotating assembly 61 includes a rotating shaft 611 rotatably sleeved on the support rod 51, a handle 612 fixedly disposed at one end of the rotating shaft 611, an L-shaped lever 613 fixedly disposed at the other end of the rotating shaft 611, a first fixing rod 614 fixedly disposed at one end of the L-shaped lever 613, and a second fixing rod 615 fixedly disposed at the other end of the L-shaped lever 613; the handle 612 is disposed outside the cylindrical outer shell 1; and the L-shaped lever 613 is disposed inside the cylindrical outer shell 1.
[0027] Connect the infusion set to infusion set interface 2 and the urinary catheter interface 3 to the urinary catheter. Turn the handle 612 counterclockwise to rotate the shaft 611, which in turn rotates the L-shaped lever 613. During the rotation of the L-shaped lever 613, the second fixing rod 615 pushes the stop lever 53 to rotate counterclockwise until the stop lever 53 contacts the first limiting rod 59. The spring 55 drives the connecting rod 54 to rotate clockwise around the support rod 51, which in turn drives the arc-shaped baffle 56 to rotate in the same direction until the arc-shaped baffle 56 is blocked by the first limiting plate 57 and stops moving. The arc-shaped baffle 56 is tightly fitted to the inner wall of the cylindrical shell 1. At this time, the arc-shaped baffle 56 blocks the connection between the drainage tube interface 4 and the cylindrical shell 1. Open the infusion set regulator, and the flushing fluid enters the urinary catheter to start flushing the bladder. After all the flushing fluid has entered the patient's bladder, close the infusion set regulator, connect the drainage tube interface 4 to the drainage tube, and turn the handle 612 counterclockwise. When the handle 642 is turned, the first fixing rod 644 pushes the stop bar 53 to rotate clockwise. After being blocked by the second limiting rod 60, the connecting rod 57 rotates counterclockwise, and the arc-shaped baffle 56 rotates counterclockwise until the arc-shaped baffle 56 abuts against the second limiting plate 58. At this time, the arc-shaped baffle 56 blocks the connection between the infusion set interface 2 and the cylindrical outer shell 1, and the liquid flows out from the drainage tube interface 4, completing the flushing of the patient's bladder. Using a bladder flushing connector with the above structure avoids the need to insert a needle into the urinary catheter, reducing the patient's chance of infection and protecting medical staff. When flushing the bladder, it is only necessary to turn the handle 612, without precise control of the turning angle, to make the arc-shaped baffle 56 block the infusion set interface 2 or the drainage tube interface 4, preventing the infusion set interface 2 and the drainage tube interface 4 from connecting due to inaccurate turning angle. The flushing fluid flows directly out from the drainage tube, ensuring that the bladder flushing process is carried out smoothly.
[0028] Specifically, the support plate 52 is provided with multiple rounded corners 521.
[0029] The support plate 52 has multiple rounded corners 521 to make way for the L-shaped lever 603, preventing the support plate 52 from blocking the rotation of the L-shaped lever and ensuring the normal use of the connector.
[0030] Specifically, the infusion set interface 2 includes an infusion set interface body 21, an external threaded connector 22 fixedly disposed within the infusion set interface body 21, and a sealing ring 23 movably disposed within the infusion set interface body 21.
[0031] The external threaded connector 22 matches the thread of the infusion set threaded interface. The infusion set threaded interface extends into the infusion set interface body 21. The thicker part of the infusion set threaded interface first abuts against the sealing ring 23. As the infusion set threaded interface continues to approach the external threaded connector 22, it continuously pushes the sealing ring 23 into the infusion set interface body 21 until the infusion set threaded interface and the external threaded connector 22 are fixed. The sealing ring and the external threaded interface 22 are in tight contact to prevent the flushing fluid from flowing out.
[0032] Specifically, the catheter interface 3 is provided with a thread 31 on the outside.
[0033] The thread 31 on the outside of the catheter interface 3 contacts the inner wall of the catheter, increasing the friction between the catheter interface 3 and the inner wall of the catheter and preventing the connector from falling off.
[0034] Specifically, the perimeter of the arc-shaped baffle 56 is half the perimeter of the cylindrical outer shell 1.
[0035] The arc-shaped baffle 56 has a long circumference. During the movement, the arc-shaped baffle 56 can quickly move to block the infusion set interface 2 or the drainage tube interface 4. And when the arc-shaped baffle 56 does not completely block one of the infusion set interface 2 or the drainage tube interface 4, the other will not be opened, effectively preventing the infusion set interface and the drainage tube interface 4 from connecting and ensuring that bladder irrigation is carried out smoothly.
[0036] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A disposable bladder irrigation connector, comprising a cylindrical housing (1), an infusion set interface (2) disposed on the cylindrical housing (1), a catheter interface (3) disposed on the cylindrical housing (1), a drainage tube interface (4) disposed on the cylindrical housing (1), and a changeover switch (5) disposed on the cylindrical housing (1), characterized in that: The changeover switch (5) includes a support rod (51) fixed inside the cylindrical shell (1), a support plate (52) fixed on the support rod (51), a stop rod (53) rotatably mounted on the support rod (51), a connecting rod (54) rotatably mounted on the support rod (51) at one end, a first spring (55) rotatably mounted on the stop rod (53) and the connecting rod (54) at both ends respectively, an arc-shaped baffle (56) fixed at one end of the connecting rod (54), a first limiting plate (57) fixed inside the cylindrical shell (1), a second limiting plate (58) fixed inside the cylindrical shell (1), a first limiting rod (59) fixed on the support plate (52), a second limiting rod (60) fixed on the support plate (52), and a rotating assembly (61) mounted on the cylindrical shell (1).
2. The disposable bladder irrigation connector according to claim 1, characterized in that: The rotating assembly (61) includes a rotating shaft (611) rotatably sleeved on the support rod (51), a handle (612) fixedly disposed at one end of the rotating shaft (611), an L-shaped lever (613) fixedly disposed at the other end of the rotating shaft (611), a first fixing rod (614) fixedly disposed at one end of the L-shaped lever (613), and a second fixing rod (615) fixedly disposed at the other end of the L-shaped lever (613); the handle (612) is disposed outside the cylindrical shell (1); the L-shaped lever (613) is disposed inside the cylindrical shell (1).
3. A disposable bladder irrigation connector according to claim 1, characterized in that: The support plate (52) has multiple rounded corners (521).
4. A disposable bladder irrigation connector according to claim 1, characterized in that: The infusion set interface (2) includes an infusion set interface body (21), an external threaded connector (22) fixedly disposed in the infusion set interface body (21), a sealing ring (23) movably disposed in the infusion set interface body (21), and a second spring (24) with its two ends fixedly disposed on the external threaded connector (22) and the sealing ring (23), respectively.
5. A disposable bladder irrigation connector according to claim 1, characterized in that: The catheter interface (3) is externally threaded (31).
6. A disposable bladder irrigation connector according to claim 1, characterized in that: The perimeter of the arc-shaped baffle (56) is half the perimeter of the cylindrical shell (1).