Self-locking catheter connecting system
By designing a self-locking catheter connection system, the rotation connection between external threads and internal threads and the coordination of grooves and springs, the problems of the existing catheter connection system being unsolid and urine leakage are solved, achieving convenient connection and preventing urine leakage.
Patent Information
- Application Number
- CN202421570810.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The existing catheter connecting system has problems such as insolid connection, difficulty in connecting and separation, rebound of urine, easy leakage, and inconvenient specimens, which brings inconvenience to the nursing work of medical staff.
A self-locking catheter connection system is designed, including a catheter and a urine collection bag. The catheter is equipped with an air bag, an inflatable joint, an irrigation and retrieval joint and a connection head A. The urine collection bag is equipped with a connecting tube and a connection head B. Through the rotation connection of the external thread and the internal thread, the coupling of the grooves and springs, the self-locking and unlocking of the connecting head A and the connecting head B is realized.
When used, the system is easy to connect and separate, enhances the tightness of the connection, prevents urine leakage, and provides convenience for the nursing work of medical staff.
Smart Images
Figure CN222804609U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of clinical medicine, and in particular relates to a self-locking urinary catheter connection system. Background Art
[0002] In clinical practice, a urinary catheter connection system is usually composed of a urinary catheter for draining urine, a urine collection bag for collecting urine, and a connector for interconnection. Currently, there are some problems with the urinary catheter connection systems on the market, such as loose connection, difficulty in connecting and separating, urine rebound, easy leakage, and inconvenience in collecting specimens, which bring inconvenience to the nursing work of medical staff. Utility Model Content
[0003] In view of the above problems, the purpose of the present utility model is to provide a self-locking urinary catheter connection system to solve the problems raised in the above background technology.
[0004] To achieve the above purpose, the utility model adopts the following technical solution: a self-locking urinary catheter connection system, comprising a urinary catheter and a urine collecting bag, the urinary catheter is provided with an air bag, an inflation joint, a flushing and collection joint and a connector A, the urine collecting bag is provided with a connecting tube, and the connecting tube is provided with a connector B matched with the connector A, the connector A is provided with a groove, the outer end of the connector A is provided with an external thread, and the inner end thereof is provided with a sealing baffle for closing the drainage passage, the inner end of the connector B is provided with a plug, a sealing ring and an internal thread, a movable groove is provided in the connector B, a spring and a top block are provided in the movable groove, and the top block is connected to the pull block through a pull rod.
[0005] The beneficial effects of the utility model are as follows: when in use, the utility model is not only convenient for connection and separation, but also can effectively enhance the tightness of the connection, prevent urine leakage, and provide convenience for the nursing work of medical staff.
[0006] To facilitate the initial connection between connector A and connector B:
[0007] As a further improvement of the above technical solution: the external thread provided on the outer wall of the connecting end of the connector A is adapted to the internal thread provided on the inner wall of the connecting end of the connector B.
[0008] The beneficial effect of this improvement is that the preliminary connection operation between the connector A and the connector B can be completed after the external thread and the internal thread are screwed together.
[0009] To facilitate the connection and locking of connector A and connector B:
[0010] As a further improvement of the above technical solution: the groove is annularly opened at the outer end of the connector A near the external thread, and the outer end of the connector A near the external thread of the groove has an outer diameter that gradually decreases toward the external thread.
[0011] The beneficial effect of the present improvement is as follows: during the process of screwing the external thread and the internal thread, the connecting end of connector A gradually moves toward the inner end of the connecting end of connector B. When the inclined section reaches the position of the top block, the top block can gradually move inward with connector A. Under the pressure of the inclined section, the top block moves toward the moving groove to compress the spring. When the top block passes the inclined section and reaches the groove, it can move away from the moving groove and get stuck in the groove under the rebound reset of the spring. Thus, the connection and locking state of connector A and connector B can be achieved, so that they will not accidentally fall off and separate, resulting in urine leakage.
[0012] To release the self-locking state between connector A and connector B:
[0013] As a further improvement of the above technical solution: the top block is connected to one end of the spring, and the other end of the spring is connected to the inner wall of the movable groove, and the pull rod is located at the inner end of the spring, and one end is connected to the top block, and the other end passes through the connector B and is connected to the pull block located outside.
[0014] The beneficial effect of this improvement is that the self-locking state between the connector A and the connector B can be released by pinching the pull block and driving the top block to move in the direction of the moving groove and separate from the groove via the pull rod.
[0015] In order to prevent the residual liquid in connector A from dripping:
[0016] As a further improvement of the above technical solution: the sealing baffle arranged at the inner end of the connector A has a M-shaped opening, and the plug is horizontally arranged in the middle of the inner end of the connector B, and the sealing ring is arranged at the root of the outer end of the plug.
[0017] The beneficial effect of this improvement is that after connector A is self-lockingly connected to connector B, the plug passes through the M-shaped opening of the sealing baffle and is located at the inner end of connector A, which can drain urine. When connector A is separated from connector B, the plug is pulled out and the sealing baffle is automatically closed, which can effectively prevent residual liquid in connector A from dripping out.
[0018] To inflate the balloon and perform bladder irrigation or urine collection:
[0019] As a further improvement of the above technical solution: the inner end of the catheter is provided with a drainage cavity, an inflation cavity and a flushing and collection cavity, and the inflation connector is connected to the air bag arranged at the bladder end of the catheter through the inflation cavity, and the flushing and collection connector is connected to the side hole of the catheter through the flushing and collection cavity.
[0020] The beneficial effects of the present improvement are as follows: by connecting an external inflation device to the inflation connector, gas can be filled into the airbag through the inflation cavity, so as to prevent the urinary catheter from falling out during the indwelling period after the airbag is expanded; by connecting a bladder flushing device or a urine collection device to it, flushing liquid can be poured into the patient's bladder or urine in the bladder can be sucked out through the flushing and collection cavity and the side hole to collect a sample; and when connected, because the flushing and collection connector is a positive pressure connector, leakage can be effectively prevented when connected and used.
[0021] To prevent urine reflux:
[0022] As a further improvement of the above technical solution: a one-way valve is provided in the drainage cavity.
[0023] The beneficial effect of this improvement is that by setting up the one-way valve in the drainage cavity, it is convenient to effectively prevent the backflow phenomenon during urine drainage.
[0024] In order to facilitate the closing and sealing of the opening of the flushing and collection joint and prevent the sealing cap from being opened and lost:
[0025] As a further improvement of the above technical solution: the screw-on cover on the flushing and retaining joint is provided with a sealing cover, and the sealing cover is connected to one end of the connecting rope, and the other end of the connecting rope is connected to the flushing and retaining joint.
[0026] The beneficial effect of this improvement is that by setting up the sealing cover, the opening of the flushing and withdrawal joint can be closed and sealed when it is not in use, and the setting up of the connecting rope can prevent the sealing cover from being lost after it is opened. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0028] Figure 2 This is a schematic diagram of the internal structure of the urinary catheter of the utility model;
[0029] Figure 3 For the utility model Figure 2 Partial enlarged view of point A;
[0030] Figure 4 For the utility model Figure 2 Partial enlarged view of point B;
[0031] Figure 5 This is a schematic diagram of the separation structure of the connector A and the connector B of the utility model;
[0032] Figure 6 This is a side sectional view of the connector B of the utility model;
[0033] In the figure: 1. urinary catheter; 2. urine collection bag; 3. air bag; 4. inflation joint; 5. flushing and retrieval joint; 6. connector A; 7. connecting tube; 8. connector B; 9. groove; 10. external thread; 11. sealing baffle; 12. plug; 13. sealing ring; 14. movable groove; 15. spring; 16. top block; 17. pull rod; 18. pull block; 19. drainage chamber; 20. inflation chamber; 21. flushing and retrieval chamber; 22. connecting rope; 23. sealing cover; 24. one-way valve; 25. internal thread. DETAILED DESCRIPTION
[0034] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0035] like Figure 1-6As shown, a self-locking urinary catheter connection system comprises a urinary catheter 1 and a urine collecting bag 2, wherein the urinary catheter 1 is provided with an air bag 3, an inflation joint 4, a flushing and collection joint 5 and a connector A6, the urine collecting bag 2 is provided with a connecting tube 7, and the connecting tube 7 is provided with a connector B8 adapted to the connector A6, the connector A6 is provided with a groove 9, the outer end of the connector A6 is provided with an external thread 10, and the inner end thereof is provided with a sealing baffle 11 for closing the drainage passage, the inner end of the connector B8 is provided with a plug 12, a sealing ring 13 and an internal thread 25, a movable groove 14 is provided in the connector B8, a spring 15 and a top block 16 are provided in the movable groove 14, and the top block 16 is connected to the pull block 18 through a pull rod 17, When the utility model is used, it is not only convenient to connect and separate, but also can effectively enhance the tightness of the connection, prevent urine leakage, and provide convenience for the nursing work of medical staff. The external thread 10 provided on the outer wall of the connecting end of the connector A6 is adapted to the internal thread 25 provided on the inner wall of the connecting end of the connector B8. After the external thread 10 and the internal thread 25 are screwed together, the preliminary connection operation of the connector A6 and the connector B8 can be completed. The groove 9 is annularly arranged at the outer end of the connector A6 near the external thread 10, and the outer end of the connector A6 on the side of the groove 9 near the external thread 10 is an oblique section that gradually decreases toward the external thread 10. During the screwing process of the external thread 10 and the internal thread 25, the connecting end of the connector A6 gradually moves toward The inner end of the connecting end of the connector B8 moves. When the inclined section reaches the position of the top block 16, the top block 16 can gradually move inward with the connector A6. Under the pressure of the inclined section, it moves in the direction of the moving groove 14 to compress the spring 15. When the top block 16 passes the inclined section and reaches the groove 9, it can move away from the moving groove 14 and get stuck in the groove 9 under the rebound reset of the spring 15. In this way, the connection and locking state of the connector A6 and the connector B8 can be achieved, so that they will not accidentally fall off and separate, causing urine leakage. The top block 16 is connected to one end of the spring 15, and the other end of the spring 15 is connected to the inner wall of the moving groove 14, and the pull rod 17 is located at the inner end of the spring 15, and one end is connected to the top block 16, and the other end passes through the connector B8 and is located outside. The pull block 18 is connected, and the top block 16 is driven to move toward the moving groove 14 and separate from the groove 9 by pinching the pull block 18 through the pull rod 17, that is, the self-locking state between the connector A6 and the connector B8 can be released. The sealing baffle 11 set at the inner end of the connector A6 has a M-shaped opening, and the plug 12 is horizontally set in the middle of the inner end of the connector B8, and the setting position of the sealing ring 13 is located at the root of the outer end of the plug 12. After the connector A6 is self-lockingly connected to the connector B8, the plug 12 passes through the M-shaped opening of the sealing baffle 11 and is located at the inner end of the connector A6, which can drain urine. When the connector A6 is separated from the connector B8, the plug 12 is pulled out, and the sealing baffle 11 is automatically closed, which can effectively prevent the residual liquid in the connector A6 from dripping out.The inner end of the urinary catheter 1 is provided with a drainage cavity 19, an inflation cavity 20 and a flushing and collecting cavity 21, and the inflation joint 4 is connected to the air bag 3 arranged at the bladder end of the urinary catheter 1 through the inflation cavity 20, and the flushing and collecting joint 5 is connected to the side hole of the urinary catheter 1 through the flushing and collecting cavity 21. When an external inflation device is connected to the inflation joint 4, gas can be filled into the air bag 3 through the inflation cavity 20, so as to prevent the urinary catheter 1 from falling out during the retention period after the air bag 3 is expanded. When a bladder flushing device or a urine collecting device is connected to it, flushing liquid can be poured into the patient's bladder or urine in the bladder can be sucked out through the flushing and collecting cavity 21 and the side hole to collect urine samples, and During connection, since the flushing and taking joint 5 is a positive pressure joint, leakage can be effectively prevented during connection and use. A one-way valve 24 is provided in the drainage chamber 19. The establishment of the one-way valve 24 in the drainage chamber 19 can effectively prevent the backflow of urine during drainage. The screw-on cover on the flushing and taking joint 5 is provided with a sealing cover 23, and the sealing cover 23 is connected to one end of the connecting rope 22, and the other end of the connecting rope 22 is connected to the flushing and taking joint 5. The establishment of the sealing cover 23 can close and seal the opening of the flushing and taking joint 5 when it is not in use, and the establishment of the connecting rope 22 can prevent the sealing cover 23 from being lost after it is opened.
[0036] The working principle of the utility model is as follows: in the process of screwing the external thread 10 and the internal thread 25, the connection end of the connector A6 gradually moves toward the inner end of the connection end of the connector B8. When the inclined section reaches the position of the top block 16, the top block 16 can gradually move inward with the connector A6. Under the pressure of the inclined section, the top block 16 moves toward the moving groove 14 to compress the spring 15. When the top block 16 passes over the inclined section and reaches the groove 9, it can move away from the moving groove 14 and snap into the groove 9 under the rebound reset of the spring 15. In this way, the connection and locking state between the connector A6 and the connector B8 can be realized, so that they will not accidentally fall off and separate, causing urine leakage. When the pinching pull block 18 drives the top block 16 to move in the direction of the moving groove 14 and separate from the groove 9 through the pull rod 17, the self-locking state between the connector A6 and the connector B8 can be released, so as to separate the urinary catheter 1 and the urine collection bag 2. After the connector A6 and the connector B8 are connected by self-locking, the plug 12 passes through the M-shaped opening of the sealing baffle 11 (the sealing baffle is made of rubber material). Located at the inner end of the connector A6, it can drain urine. When the connector A6 is separated from the connector B8, the plug 12 is pulled out, and the sealing baffle 11 is automatically closed, which can effectively prevent the residual liquid in the connector A6 from dripping out. When the external inflation device is connected to the inflation connector 4, gas can be inflated into the airbag 3 through the inflation cavity 20, so as to prevent the urinary catheter 1 from falling out during the indwelling period after the airbag 3 is expanded. When the bladder flushing device or the urine collection device is connected to it, the flushing collection cavity 21 and the side The flushing and collecting joint 5 is a positive pressure joint, which can effectively prevent leakage during connection and use. The one-way valve 24 in the drainage cavity 19 can effectively prevent backflow during urine drainage. The sealing cover 23 can close and seal the opening of the flushing and collecting joint 5 when it is not in use. The connecting rope 22 can prevent the sealing cover 23 from being lost after it is opened.
[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0038] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A self-locking urinary catheter connection system, comprising a urinary catheter (1) and a urine collection bag (2), wherein the urinary catheter (1) is provided with an air bag (3), an inflation joint (4), a flushing and collection joint (5) and a connector A (6), and the urine collection bag (2) is provided with a connecting tube (7), and the connecting tube (7) is provided with a connector B (8) adapted to the connector A (6), characterized in that: The connector A (6) is provided with a groove (9), the outer end of the connector A (6) is provided with an external thread (10), and the inner end thereof is provided with a sealing baffle (11) for closing the drainage passage, the inner end of the connector B (8) is provided with a plug (12), a sealing ring (13) and an internal thread (25), the connector B (8) is provided with a movable groove (14), the movable groove (14) is provided with a spring (15) and a top block (16), and the top block (16) is connected to the pull block (18) via a pull rod (17).
2. A self-locking urinary catheter connection system according to claim 1, characterized in that: The external thread (10) provided on the outer wall of the connection end of the connector A (6) is adapted to the internal thread (25) provided on the inner wall of the connection end of the connector B (8).
3. A self-locking urinary catheter connection system according to claim 1, characterized in that: The groove (9) is annularly opened at the outer end of the connector A (6) near the external thread (10), and the outer end of the connector A (6) near the external thread (10) of the groove (9) has an outer diameter that is an oblique section that gradually decreases in the direction of the external thread (10).
4. A self-locking urinary catheter connection system according to claim 1, characterized in that: The top block (16) is connected to one end of the spring (15), and the other end of the spring (15) is connected to the inner wall of the movable groove (14), and the pull rod (17) is located at the inner end of the spring (15), and one end is connected to the top block (16), and the other end passes through the connector B (8) and is connected to the pull block (18) located outside.
5. A self-locking urinary catheter connection system according to claim 1, characterized in that: The sealing baffle (11) disposed at the inner end of the connector A (6) is provided with a M-shaped opening, and the plug (12) is horizontally disposed at the middle of the inner end of the connector B (8), and the sealing ring (13) is disposed at the root of the outer end of the plug (12).
6. A self-locking urinary catheter connection system according to claim 1, characterized in that: The inner end of the urinary catheter (1) is provided with a drainage cavity (19), an inflation cavity (20) and a flushing and collecting cavity (21), and the inflation connector (4) is connected to the air bag (3) arranged at the bladder end of the urinary catheter (1) through the inflation cavity (20), while the flushing and collecting cavity (5) is connected to the side hole of the urinary catheter (1) through the flushing and collecting cavity (21).
7. A self-locking urinary catheter connection system according to claim 6, characterized in that: A one-way valve (24) is provided in the drainage cavity (19).
8. A self-locking urinary catheter connection system according to claim 1, characterized in that: The screw-on cover on the flushing and retaining joint (5) is provided with a sealing cover (23), and the sealing cover (23) is connected to one end of a connecting rope (22), while the other end of the connecting rope (22) is connected to the flushing and retaining joint (5).