Leakage-proof connector capable of being plugged in two directions and urinary catheterization device with leakage-proof connector

Abstract

The utility model relates to the technical field of urinary nursing, in particular to a leakage-proof connector capable of being plugged in two directions and a urinary catheterization device comprising the leakage-proof connector capable of being plugged in two directions. The first leakage-proof piece is arranged on the inserting pipe and used for blocking a pipe opening of the inserting pipe; the second leakage-proof piece is arranged on the connecting pipe and used for blocking a pipe opening of the connecting pipe when the inserting pipe is separated from the connecting pipe; a locking piece is arranged on the inserting pipe and used for blocking and locking the first leakage-proof piece when the inserting pipe is separated from the connecting pipe, and when the inserting pipe is connected with the connecting pipe, the second leakage-proof piece is opened to conduct the urine flow path. According to the urine guide device, when the urine guide pipe is separated from the urine storage bag, the first leakage-proof piece and the second leakage-proof piece can automatically block the pipe opening, urine leakage is effectively prevented, the problem that the urine leaks when the urine storage bag of a traditional urine guide device is replaced is solved, and sanitation and convenience of nursing are improved.

Description

Technical Field

[0001] This application relates to the field of urological care technology, and in particular to a bidirectional sealing and leak-proof connector and its catheterization device. Background Technology

[0002] In urological nursing, catheterization devices are crucial medical instruments used to assist patients with urinary system diseases during the catheterization process. Traditional catheterization devices typically consist of a catheter and a urine collection bag, and their design primarily focuses on urine drainage. However, in practical applications, these traditional devices have significant drawbacks when changing the urine collection bag. When healthcare workers need to change the urine collection bag, the connection between the catheter and the urine collection bag must be temporarily separated. During this process, any residual urine in the catheter and any urine that has not been completely emptied from the urine collection bag are highly susceptible to leakage from the separated interface.

[0003] In existing technologies, urine leakage not only contaminates the surrounding environment and increases the workload of medical staff, but more importantly, for patients requiring urine tests (such as routine urinalysis and urine culture), contaminated urine samples severely affect the accuracy of test results, potentially leading to misdiagnosis or missed diagnosis and delaying treatment. Furthermore, for conscious patients, accidental urine leakage can cause extreme discomfort and embarrassment, significantly impacting their self-esteem and quality of life, and placing unnecessary psychological burden on them. Therefore, effectively solving the problem of urine leakage during urine bag changes in urinary catheterization devices is a pressing technical challenge in the field of urological nursing.

[0004] Therefore, it is necessary to propose a bidirectional sealing and leak-proof connector and its catheterization device to solve the above problems. Utility Model Content

[0005] This application provides a bidirectional sealing and leak-proof connector and its urinary catheterization device, in order to improve the technical problem in the related art where urine easily leaks when changing the urine storage bag in traditional urinary catheterization devices, leading to environmental pollution, urine sample contamination and patient discomfort.

[0006] This application provides a bidirectional leak-proof connector, including a plug tube and a connecting tube, the plug tube and the connecting tube being detachably connected; a first leak-proof component disposed on the plug tube, the first leak-proof component being used to seal the opening of the plug tube; a second leak-proof component disposed on the connecting tube, the second leak-proof component being used to seal the opening of the connecting tube when the plug tube and the connecting tube are separated; a locking component disposed on the plug tube, the locking component being used to seal and lock the first leak-proof component when the plug tube and the connecting tube are separated, wherein, in the state where the plug tube and the connecting tube are connected, the second leak-proof component is opened to allow urine flow.

[0007] The technical solution described above in this application embodiment has at least the following technical effects: when the insertion tube and the connecting tube are assembled and connected, the second leak-proof component is triggered to open, while the first leak-proof component remains closed. The first leak-proof component is opened by the gravity of the urine itself. When the catheter is separated from the urine storage bag, the first and second leak-proof components can automatically seal the tube opening. At the same time, the locking component locks the first leak-proof component a second time, avoiding the problem of urine leakage caused by the patient's unconscious urination during the urine bag replacement process. This solves the problem of urine leakage when changing the urine storage bag in traditional catheterization devices, and improves the hygiene and convenience of nursing care.

[0008] In this embodiment, the first leak-proof component includes a first fixing frame, a first flap pivotally connected to the first fixing frame, and a first torsion spring for driving the first flap to reset; the second leak-proof component includes a second fixing frame, a second flap pivotally connected to the second fixing frame, and a second torsion spring for driving the second flap to reset.

[0009] This technical solution employs a flap and torsion spring structure, which is essentially a one-way valve structure. The function of the one-way flap valve can be broken down into two non-interfering parts: forward conduction control and reverse absolute sealing. This achieves automatic opening and closing of the leak-proof component. The structure is simple, reliable, and responsive. For the forward opening of the flap, the gravity of the urine must be greater than or equal to the flap's closing resistance. When the amount of urine in the catheter is small and the gravity is insufficient, the flap remains closed, preventing the urine on the storage bag side from pushing open the flap and causing backflow.

[0010] In this embodiment, when the insertion tube is connected to the connecting tube, the end of the insertion tube abuts against the second flap to drive the second flap to rotate and open the opening of the connecting tube.

[0011] With this technical solution, the second flap opens under the mechanical force of the insertion of the connector, providing a basis for the flow path to be open. The design of opening by external force enables on-demand flow of urine, avoiding the impact of too many flaps and the resistance of the torsion spring on the flow of urine.

[0012] In this embodiment, the first flap abuts against the inner end face of the insertion tube to achieve a sealing and plugging of the insertion tube, and the second flap abuts against the inner end face of the connecting tube to achieve a sealing and plugging of the connecting tube.

[0013] This technical solution utilizes the inherent rigid planes of the insert pipe and connecting pipe, providing a natural sealing reference surface for the flapper. When the first flapper abuts against the inner end face of the insert pipe and the second flapper abuts against the inner end face of the connecting pipe, the sealing surface of the flapper forms a tight surface contact with the pipe end face, directly blocking the flow path inside the pipe and achieving physical sealing of the pipe opening, structurally cutting off the path of urine leakage or backflow.

[0014] In this embodiment, the locking member includes an adjusting cylinder that is rotatably mounted on the insertion tube and rotates coaxially with the first flap plate, and an abutting member for abutting the locking adjusting cylinder is also provided on the side wall of the insertion tube.

[0015] With this technical solution, the adjusting cylinder and the first flap rotate coaxially, which means that their movements are completely synchronized. When the adjusting cylinder is rotated, the first flap will flip along with it, and the opening angle or closing state of the flap can be directly controlled. When the flap rotates to the sealing position, the abutting part abuts and locks with the adjusting cylinder. By restricting the rotational freedom of the adjusting cylinder, the first flap is simultaneously fixed in the sealing position, realizing the integrated operation of rotation, opening and closing, and locking.

[0016] In this embodiment, the outer peripheral wall of the adjusting cylinder is provided with abutment grooves arranged in a circular array, and the side wall of the insertion tube is also provided with an adjusting groove. An abutment member is movably disposed in the adjusting groove for abutting and limiting the adjusting cylinder. A spring pin is also provided on the side wall of the adjusting groove for keeping the abutment member in two states: limited with the adjusting cylinder and released from the limited position of the adjusting cylinder.

[0017] This technical solution adjusts the circumferential array of abutment grooves on the outer periphery of the cylinder, forming a protrusion and groove positioning pair with the abutment member inside the adjustment groove. When the adjustment cylinder is rotated to the target position, the abutment member is embedded into the corresponding abutment groove under the action of the spring pin. The rotational freedom of the adjustment cylinder is restricted by physical engagement, locking it at the current angle and simultaneously fixing the state of the first flip plate.

[0018] In this embodiment, a snap-fit ​​component is also included, which includes a snap-fit ​​block disposed on the insertion tube and a snap-fit ​​groove disposed on the connecting tube. The snap-fit ​​block engages with the snap-fit ​​groove to lock the insertion tube to the connecting tube.

[0019] This technical solution provides a quick assembly positioning and stable locking function for the insertion pipe and connecting pipe through the mechanical cooperation of the locking block and locking groove.

[0020] In this embodiment, a sealing ring is also included, which is disposed between the insertion tube and the connecting tube and is sleeved on the outer periphery of the insertion tube.

[0021] With this technical solution, the sealing ring is fitted around the outer periphery of the insertion tube and located between the insertion tube and the connecting tube. Its core function is to enhance the radial sealing performance of the joint in the connection state and to achieve secondary sealing protection by filling the gap between the two.

[0022] In this embodiment, a urinary catheterization device includes a urinary catheter and a urine storage bag, and a bidirectional sealing and leak-proof connector. The urine storage bag is provided with a urination tube, and the insertion tube is connected to the urinary catheter; the connecting tube is connected to the urine storage bag.

[0023] This technical solution, with its detachable design, allows for the individual replacement of the catheter or urine collection bag without interrupting the catheterization process, reducing the cost and complexity of replacing the entire device. Beneficial effects:

[0024] This utility model discloses a bidirectional sealing leak-proof connector and its urinary catheterization device, which addresses the problem of urine leakage when changing urine storage bags in existing urinary catheterization devices. When the insertion tube and connecting tube are assembled and connected, the second leak-proof component is triggered to open, while the first leak-proof component remains closed, avoiding excessive resistance during urine flow. The first leak-proof component opens due to the gravity of the urine itself. When the urinary catheter is separated from the urine storage bag, the first and second leak-proof components automatically seal the tube opening. At the same time, the locking component locks the first leak-proof component a second time, preventing urine leakage due to the patient's unconscious urination during urine bag changes. This solves the problem of urine leakage when changing urine storage bags in traditional urinary catheterization devices, improving the hygiene and convenience of nursing care.

[0025] Meanwhile, both the first and second leak-proof components are one-way valve structures with one-way flaps, which prevents possible urine reflux from the source. The flap needs to be opened in the forward direction with the gravity of the urine being greater than or equal to the flap's closing resistance. When the amount of urine in the catheter is small and the gravity is insufficient, the flap remains closed. However, this closure is not a simple pressureless seal, but rather a manifestation of the one-way valve's reverse locking characteristic. Essentially, the flap cannot be opened in the reverse direction due to its own structural constraints, so there is naturally no space for reflux.

[0026] Specifically, when medical staff need to change the urine collection bag and separate the intubation tube from the connecting tube, the first and second leak-proof components can quickly and automatically seal their respective openings, thus preventing accidental leakage of residual urine in the catheter and unemptied urine in the collection bag. This not only significantly reduces pollution to the surrounding environment and lowers the cleaning burden on medical staff, but more importantly, it effectively prevents urine samples from being contaminated during the replacement process, ensuring the accuracy of urine test results and avoiding the risk of misdiagnosis or missed diagnosis.

[0027] Furthermore, for patients, this device avoids the discomfort and embarrassment caused by accidental urine leakage, improving their comfort and sense of dignity, and reducing their psychological burden. Therefore, this invention represents a significant technological advancement and practical value in the field of urological nursing, effectively improving the hygiene, safety, and convenience of catheterization procedures. Attached Figure Description

[0028] Figure 1 A three-dimensional structural diagram of a bidirectional sealing and leak-proof connector and its urinary catheterization device provided in this application embodiment. Figure 1 ;

[0029] Figure 2 A three-dimensional structural diagram of a bidirectional sealing and leak-proof connector and its urinary catheterization device provided in this application embodiment. Figure 2 ;

[0030] Figure 3 A cross-sectional structural diagram of the insertion tube and connecting tube provided in the embodiments of this application;

[0031] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0032] Figure 5 for Figure 3 Enlarged view at point C;

[0033] Figure 6 A schematic cross-sectional view of the insertion tube and connecting tube after insertion, as provided in an embodiment of this application.

[0034] Figure 7 This is a three-dimensional structural diagram of the insertion tube provided in an embodiment of this application;

[0035] Figure 8 for Figure 7 Enlarged view of point D in the middle.

[0036] The following are the labeling elements in the figure:

[0037] 1. Urinary catheter; 11. Urinary bag; 12. Drainage tube; 13. Insertion tube; 14. Connecting tube; 2. Leak-proof assembly; 21. First leak-proof component; 211. First fixing frame; 212. First flap; 213. First torsion spring; 22. Second leak-proof component; 221. Second fixing frame; 222. Second flap; 223. Second torsion spring; 3. Snap-fit ​​component; 31. Snap-fit ​​block; 32. Snap-fit ​​groove; 4. Sealing ring; 5. Locking component; 51. Adjusting cylinder; 52. Abutment component; 53. Abutment groove; 54. Adjusting groove; 55. Spring pin. Detailed Implementation

[0038] In existing technologies, urine leakage not only contaminates the surrounding environment and increases the workload of medical staff, but more importantly, for patients requiring urine tests (such as routine urinalysis and urine culture), contaminated urine samples severely affect the accuracy of test results, potentially leading to misdiagnosis or missed diagnosis and delaying treatment. Furthermore, for conscious patients, accidental urine leakage can cause extreme discomfort and embarrassment, significantly impacting their self-esteem and quality of life, and placing unnecessary psychological burden on them. Therefore, effectively solving the problem of urine leakage during urine bag changes in urinary catheterization devices is a pressing technical challenge in the field of urological nursing.

[0039] Based on this, in order to improve the technical problem in the related technology that traditional urine catheterization devices are prone to urine leakage when changing urine storage bags, resulting in environmental pollution, urine sample contamination and patient discomfort, the embodiments of this application provide the following solutions.

[0040] Please refer to the following: Figures 1 to 8 It includes a connector 13 and a connecting tube 14, which are detachably connected; a first leak-proof component 21 is provided on the connector 13 to block the opening of the connector 13; a second leak-proof component 22 is provided on the connecting tube 14 to block the opening of the connecting tube 14 when the connector 13 and the connecting tube 14 are separated; a locking component 5 is provided on the connector 13 to lock the first leak-proof component 21 when the connector 13 and the connecting tube 14 are separated, wherein, when the connector 13 and the connecting tube 14 are connected, the second leak-proof component 22 is opened to allow urine flow.

[0041] The bidirectional leak-proof connector and its catheterization device provided in this application embodiment, when the insertion tube 13 and the connecting tube 14 are assembled and connected, the second leak-proof component 22 is triggered to open, while the first leak-proof component 21 remains closed. The first leak-proof component 21 opens due to the gravity of the urine itself. When the catheter 1 is separated from the urine storage bag 11, the first leak-proof component 21 and the second leak-proof component 22 automatically seal the tube opening. Simultaneously, the locking component 5 provides a secondary lock to the first leak-proof component 21, preventing urine leakage due to the patient's involuntary urination during urine bag changes. This solves the problem of urine leakage when changing the urine storage bag 11 in traditional catheterization devices, improving the hygiene and convenience of care. Thus, through the double protection of automatic sealing by the two leak-proof components and secondary reinforcement by the locking component 5, even if the patient suddenly urinates involuntarily during separation, the locking structure of the first leak-proof component 21 can firmly seal the opening of the catheter 1, completely preventing urine leakage and solving the fundamental defects of traditional devices.

[0042] In this embodiment, the first leak-proof component 21 includes a first fixing frame 211, a first flap 212 pivotally connected to the first fixing frame 211, and a first torsion spring 213 for driving the first flap 212 to reset; the second leak-proof component 22 includes a second fixing frame 221, a second flap 222 pivotally connected to the second fixing frame 221, and a second torsion spring 223 for driving the second flap 222 to reset.

[0043] This design, employing a flap and torsion spring structure, is essentially a one-way valve. The function of the one-way flap valve can be broken down into two independent parts: forward conduction control and reverse absolute sealing. This achieves automatic opening and closing of the leak-proof component. The structure is simple, reliable, and responsive. For the flap to open in the forward direction, the gravity of the urine must be greater than or equal to the flap's closing resistance. When the amount of urine in the catheter 1 is low and the gravity is insufficient, the flap remains closed, preventing urine from the storage bag 11 side from pushing open the flap and causing backflow. Thus, the pivot direction of the flap and the return force of the torsion spring together constitute a one-way locking mechanism: the flap can only flip forward towards the storage bag 11 side. When backflow pressure occurs on the storage bag 11 side, the backflowing urine acts on the backflow surface of the flap, and together with the preload of the torsion spring, presses the flap tightly against the sealing surface, forming a reverse absolute seal where the greater the pressure, the tighter the seal, physically preventing urine backflow to the catheter 1.

[0044] In this embodiment, when the insertion tube 13 is connected to the connecting tube 14, the end of the insertion tube 13 abuts against the second flap 222 to drive the second flap 222 to rotate and open the opening of the connecting tube 14.

[0045] With this configuration, the second flap 222 opens under the mechanical force of the insertion of the connector 13, providing a basis for flow path connection. This externally triggered opening design enables on-demand flow of urine, avoiding the obstruction of urine flow due to excessive flaps and torsion spring resistance. Conversely, if the second flap 222 also adopted the gravity-triggered opening mode of the first flap 212, urine flow would have to overcome the dual resistance of the first torsion spring 213 and the second torsion spring 223, potentially leading to poor flow. The externally triggered opening keeps the second flap 222 open from the moment of connection, requiring only the first flap 212 to respond to gravity, significantly reducing the resistance load on urine flow and ensuring smooth flow.

[0046] In this embodiment, the first flap 212 abuts against the inner end face of the insertion tube 13 to achieve a sealing and plugging of the insertion tube 13, and the second flap 222 abuts against the inner end face of the connecting tube 14 to achieve a sealing and plugging of the connecting tube 14.

[0047] With this configuration, the internal end faces of the insertion pipe 13 and the connecting pipe 14 are inherent rigid planes of the pipeline, providing a natural sealing reference surface for the flaps. When the first flap 212 abuts against the internal end face of the insertion pipe 13 and the second flap 222 abuts against the internal end face of the connecting pipe 14, the sealing surface of the flaps forms a tight surface contact with the pipeline end face, directly blocking the flow channel inside the pipeline and achieving physical sealing of the pipe opening. Structurally, this cuts off the path of urine leakage or backflow. The preload of the torsion spring continuously drives the flaps to press against the internal end face of the pipeline, maintaining a certain contact pressure between the flaps and the end face to form an initial seal. When pressure appears inside the pipeline, the pressure acts on the flaps, further pushing the flaps against the end face, making the contact tighter. The sealing effect increases with increasing pressure, achieving "pressure self-reinforcing sealing" and improving the reliability of the sealing.

[0048] In this embodiment, the locking member 5 includes an adjusting cylinder 51 that is rotatably mounted on the insertion tube 13 and rotates coaxially with the first flap 212. The side wall of the insertion tube 13 is also provided with an abutting member for abutting the locking adjusting cylinder 51.

[0049] With this configuration, the adjusting cylinder 51 and the first flap 212 rotate coaxially, meaning that their movements are completely synchronized. When the adjusting cylinder 51 is rotated, the first flap 212 will flip along with it, allowing direct control of the flap's opening angle or closing state. When the flap rotates to the sealing position, the abutting part abuts and locks against the adjusting cylinder 51. By restricting the rotational freedom of the adjusting cylinder, the first flap 212 is simultaneously fixed in the sealing position, achieving integrated operation of rotation, opening, closing, and locking. This can completely prevent leakage in extreme situations such as unconscious urination by the patient or pipeline vibration, and is more controllable than simple automatic sealing.

[0050] In this embodiment, the outer peripheral wall of the adjusting cylinder 51 is provided with abutment grooves 53 arranged in a circular array, and the side wall of the insertion tube 13 is also provided with an adjusting groove 54. An abutment member 52 is movably disposed in the adjusting groove 54 for abutting and limiting the adjusting cylinder 51. A spring pin 55 is also provided on the side wall of the adjusting groove 54 for keeping the abutment member 52 in two states: limiting the adjusting cylinder 51 and releasing the limiting of the adjusting cylinder 51.

[0051] With this configuration, the circumferential array of abutment grooves 53 on the outer periphery of the adjusting cylinder 51 forms a protrusion and groove positioning pair with the abutment member 52 in the adjusting groove 54. When the adjusting cylinder 51 is rotated to the target position, the abutment member 52 is inserted into the corresponding abutment groove 53 under the action of the spring pin 55. The rotational freedom of the adjusting cylinder 51 is restricted by physical engagement, locking it at the current angle and simultaneously fixing the state of the first flap 212. When it is necessary to close the first flap 212, the adjusting cylinder 51 is rotated to put the first flap 212 in the closed state.

[0052] In this embodiment, a snap-fit ​​component 3 is also included. The snap-fit ​​component 3 includes a snap-fit ​​block 31 disposed on the insertion tube 13 and a snap-fit ​​groove 32 disposed on the connecting tube 14. The snap-fit ​​block 31 and the snap-fit ​​groove 32 snap-fit ​​together to lock the insertion tube 13 and the connecting tube 14.

[0053] With this configuration, the snap-fit ​​component 3 provides a quick assembly positioning and stable locking function for the insertion tube 13 and the connecting tube 14 through the mechanical cooperation between the snap-fit ​​block 31 and the snap-fit ​​groove 32.

[0054] In this embodiment, a sealing ring 4 is also provided between the insertion tube 13 and the connecting tube 14, and the sealing ring 4 is sleeved on the outer periphery of the insertion tube 13.

[0055] With this configuration, the sealing ring 4 is fitted around the outer periphery of the insertion tube 13 and located between the insertion tube 13 and the connecting tube 14. Its core function is to enhance the radial sealing performance of the joint in the connected state and to achieve secondary sealing protection by filling the gap between the two.

[0056] In this embodiment, a urinary catheterization device includes a urinary catheter 1 and a urine storage bag 11, and a bidirectional sealing and leak-proof connector. The urine storage bag 11 is provided with a urination tube 12, and an insertion tube 13 is connected to the urinary catheter 1; a connecting tube 14 is connected to the urine storage bag 11.

[0057] This design allows for the individual replacement of the catheter 1 or the urine collection bag 11 without interrupting the catheterization process, reducing the cost and complexity of replacing the entire device.

[0058] The working principle of a bidirectional sealing and leak-proof connector and its urinary catheter device is as follows: When medical staff insert the urinary catheter device into the patient, they first insert the urinary catheter 1 into the patient's body, and then transfer urine to the urine storage bag 11 through the urinary catheter 1. After the urine storage bag 11 is full, it is discharged through the urination tube 12.

[0059] During urination, the urine opens the first flap 212 by gravity, allowing the urine to flow. When the weight of the urine is less than the elastic force of the torsion spring, the flap is closed. At this time, there is a small amount of urine in the catheter 1, which is not enough to open the first flap 212. At the same time, the first flap 212 abuts against the inner end face of the insertion tube 13 to suppress backflow. When backflow pressure occurs on the side of the urine storage bag 11, the backflowing urine will act on the backflow surface of the flap, and with the pre-tightening force of the torsion spring, the flap is pressed tightly against the sealing surface, forming a reverse absolute seal where the greater the pressure, the tighter the seal, thus physically blocking the backflow of urine to the catheter 1.

[0060] During the process of changing the urine storage bag 11 at a certain time, firstly, by rotating the adjusting cylinder 51, the abutment plate 52 on the adjusting cylinder 51 abuts against the first flap 212 to prevent it from opening. At the same time, the abutment groove 53 on the outer circumference of the adjusting cylinder 51 and the locking structure of the moving block 55 form a mechanical positioning pair, locking the position of the adjusting cylinder 51. By pressing the locking block 31, the locking block 31 and the locking groove 32 are released from the restriction, so that the insertion tube 13 and the connecting tube 14 are separated, and the urine catheter 1 and the urine storage bag 11 are separated from each other. After separation, the first fixing bracket 211 on the insertion tube 13 provides support, so that the first flap 212 seals the bottom of the catheter 1 through the first torsion spring 213 to prevent residual urine in the catheter 1 from flowing out. At the same time, the second fixing bracket 221 on the connecting tube 14 provides support, so that the second flap 222 seals the inlet of the urine storage bag 11 through the second torsion spring 223. In this way, during the sealing process, urine leakage can be prevented, and the flow rate of the inlet will not be restricted due to the anti-leakage component during the urine flow process.

[0061] During the replacement of the new urine storage bag 11, the locking device 5 is first used to restrict the first flap 212. The insertion tube 13 is inserted into the connecting tube 14, and the locking device 3 is used to limit the movement between the two. During the insertion of the insertion tube 13 into the connecting tube 14, the bottom of the insertion tube 13 abuts against the second flap 222, so that the second flap 222 rotates and the second torsion spring 223 is in the open state, thus avoiding excessive torsion spring and flap restriction of urine entering the urine storage bag 11, which could lead to infection.

[0062] The sealing ring 4 is used to seal the gap between the insertion tube 13 and the connecting tube 14 to prevent urine from flowing out from the gap between the insertion tube 13 and the connecting tube 14.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bidirectional sealing and leak-proof connector, comprising a plug pipe (13) and a connecting pipe (14), wherein the plug pipe (13) and the connecting pipe (14) are detachably connected; characterized in that: A first leak-proof element (21) is provided on the insertion pipe (13), the first leak-proof element (21) being used to seal the opening of the insertion pipe (13); A second leak-proof component (22) is provided on the connecting pipe (14). The second leak-proof component (22) is used to block the opening of the connecting pipe (14) when the insertion pipe (13) is separated from the connecting pipe (14). A locking component (5) is provided on the insertion pipe (13). The locking component (5) is used to block and lock the first leak-proof component (21) when the insertion pipe (13) is separated from the connecting pipe (14). In the connected state of the insertion pipe (13) and the connecting pipe (14), the second leak-proof component (22) is opened to open the urine flow path.

2. The bidirectional sealing and leak-proof connector according to claim 1, characterized in that: The first leak-proof component (21) includes a first fixing frame (211), a first flap (212) pivotally connected to the first fixing frame (211), and a first torsion spring (213) for driving the first flap (212) to reset; the second leak-proof component (22) includes a second fixing frame (221), a second flap (222) pivotally connected to the second fixing frame (221), and a second torsion spring (223) for driving the second flap (222) to reset.

3. The bidirectional sealing and leak-proof connector according to claim 2, characterized in that: When the insertion tube (13) is connected to the connecting tube (14), the end of the insertion tube (13) abuts against the second flap (222) to drive the second flap (222) to rotate and open the opening of the connecting tube (14).

4. The bidirectional sealing and leak-proof connector according to claim 3, characterized in that: The first flap (212) abuts against the inner end face of the insertion tube (13) to achieve sealing and plugging of the insertion tube (13), and the second flap (222) abuts against the inner end face of the connecting tube (14) to achieve sealing and plugging of the connecting tube (14).

5. A bidirectional sealing and leak-proof connector according to claim 4, characterized in that: The locking member (5) includes an adjusting cylinder (51) that is rotatably mounted on the insertion tube (13) and rotates coaxially with the first flap (212). The side wall of the insertion tube (13) is also provided with an abutting member for abutting the locking adjusting cylinder (51).

6. A bidirectional sealing and leak-proof connector according to claim 5, characterized in that: The outer peripheral wall of the adjusting cylinder (51) is provided with abutment grooves (53) arranged in a circular array. The side wall of the insertion pipe (13) is also provided with an adjusting groove (54). An abutment member (52) is movably arranged in the adjusting groove (54) for abutting and limiting the adjusting cylinder (51). A spring pin (55) is also provided on the side wall of the adjusting groove (54) for keeping the abutment member (52) in two states: limiting the adjusting cylinder (51) and releasing the limiting of the adjusting cylinder (51).

7. A bidirectional sealing and leak-proof connector according to claim 1, 2, 3, 4, 5, or 6, characterized in that: It also includes a snap-fit ​​component (3), which includes a snap-fit ​​block (31) disposed on the insertion tube (13) and a snap-fit ​​groove (32) disposed on the connecting tube (14). The snap-fit ​​block (31) engages with the snap-fit ​​groove (32) to lock the insertion tube (13) and the connecting tube (14).

8. A bidirectional sealing and leak-proof connector according to claim 1, 2, 3, 4, 5, or 6, characterized in that: It also includes a sealing ring (4) disposed between the insertion tube (13) and the connecting tube (14), the sealing ring (4) being sleeved on the outer periphery of the insertion tube (13).

9. A urinary catheterization device, characterized in that, It includes a urinary catheter (1) and a urine storage bag (11), and a bidirectional sealing and leak-proof connector as described in any one of claims 1 to 8, wherein the urine storage bag (11) is provided with a urination tube (12), the insertion tube (13) is connected to the urinary catheter (1), and the connecting tube (14) is connected to the urine storage bag (11).

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