Urethral catheter convenient for urination

The design of the limiting device and connecting device solves the problem of inconvenient fixation of the urinary catheter in the urethra, and achieves stable fixation and convenient use of the urinary catheter.

CN224156073UActive Publication Date: 2026-04-24GUIGANG PEOPLES HOSPITAL
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Patent Information

Application Number
CN202422442998.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2026-04-24
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

To prevent dislodgement during use, existing urinary catheters require squeezing the balloon into the urethra, which is inconvenient.

Method used

A catheter designed for easy urination employs a limiting device, including a balloon, a pressure pump, a rubber plate, and a connecting tube. The balloon is inflated and confined within the urethra by squeezing through a notch in the rubber plate. The pressure pump and a sealing plug control the gas flow. Combined with a connecting device for a rubber conical sleeve and a urine bag, stable fixation is achieved.

Benefits of technology

It achieves stable fixation of the urinary catheter in the urethra, simplifies the operation process, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a catheter convenient for urination, which relates to the technical field of catheters, and comprises a catheter main body, one end of the catheter main body is provided with a urine inlet hole, one end of the catheter main body far away from the urine inlet hole is provided with a urine outlet, and one end of the catheter main body close to the urine outlet is provided with a urine bag. A limiting device is arranged on the surface of the pipeline body, a connecting device is arranged on the surface of the pipeline body, the limiting device comprises a balloon, the balloon is fixedly connected with the surface, close to one end of the urine inlet hole, of the surface of the pipeline body, and when the limiting device is used, the balloon which is not inflated is inserted into the urethra. Due to the fact that the periphery of the pressure pump is made of rubber materials, the pressure pump is squeezed, gas is squeezed into the balloon from the notch formed in the rubber plate and the connecting pipe, when the balloon is inflated to a proper degree, the rubber plate recovers to the original shape, the notch is squeezed and blocked, and the outer portion of the balloon is squeezed to the inner wall of the urethra.
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Description

Technical Field

[0001] This utility model relates to the field of urinary catheter technology, and in particular to a urinary catheter that facilitates urination. Background Technology

[0002] A urinary catheter is a device used to facilitate urination for people who have difficulty urinating or have undergone urological surgery. When using a urinary catheter, one end of the catheter is inserted into the urethra, allowing urine to be drained from the bladder through the catheter, thus facilitating urination.

[0003] The inventor discovered in his daily work that urinary catheters still have at least the following problems: When using a urinary catheter, one end of the catheter is inserted into the urethra, allowing urine to be drained from the bladder, which facilitates urination. However, in actual use, to prevent the catheter from falling out of the urethra, the balloon is usually squeezed into the urethra to restrict one end of the catheter within the urethra. This makes squeezing the balloon into the urethra rather troublesome. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a urinary catheter that facilitates urination.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a urinary catheter for facilitating urination, comprising a main body, an inlet hole at one end of the main body, an outlet hole at the end of the main body away from the inlet hole, a urine bag at the end of the main body near the outlet hole, a limiting device on the surface of the main body, a connecting device on the surface of the main body, the limiting device comprising a balloon, the balloon being fixedly connected to the surface of the main body near the inlet hole, a connecting tube inserted into one side of the balloon, connecting rings evenly distributed on the surface of the connecting tube, one side of the connecting rings being fixedly connected to the surface of the main body, a pressure pump fixedly connected to the end of the connecting tube away from the balloon, the pressure pump being fixedly connected to the surface of the main body, a rubber plate fixedly connected to the inner wall of the connecting tube, and a notch evenly distributed on one side of the rubber plate.

[0006] The effect achieved by the above components is as follows: When using the limiting device, the uninflated balloon is inserted into the urethra. Because the pressure pump is made of rubber, the pressure pump is squeezed, forcing air through the notch in the rubber plate and the connecting tube into the balloon. When the balloon is inflated to the appropriate degree, the rubber plate returns to its original shape, thus squeezing and blocking the notch. This forces the outside of the balloon against the inner wall of the urethra, effectively restricting one end of the main tube to the inside of the urethra.

[0007] Preferably, a sealing plug is slidably inserted through the side of the pressurizing pump away from the main pipe body. A connecting plate is fixedly connected to the end of the sealing plug near the pressurizing pump. A first damping rod is fixedly connected to the end of the connecting plate near the pressurizing pump. The end of the first damping rod near the sealing plug is fixedly connected to one side of the inner wall of the pressurizing pump. A first spring is sleeved on the surface of the first damping rod. One end of the first spring is fixedly connected to one side of the inner wall of the pressurizing pump. The end of the first spring near the first damping rod is fixedly connected to one end of the connecting plate.

[0008] The effect achieved by the above components is as follows: when the pressure pump is manually squeezed, the sealing plug blocks the air inlet of the pressure pump, thereby effectively squeezing the pressure pump into the inside of the connecting pipe. After the air is squeezed out, because the external environmental pressure is greater than the internal pressure of the pressure pump, the air is effectively squeezed into the inside of the pressure pump, thus ensuring that there is always air inside the pressure pump.

[0009] Preferably, a squeezing tube is slidably connected to the inner wall of the connecting tube near the pressure pump, and a support plate is fixedly connected to the end of the squeezing tube away from the connecting tube. A connecting rod is slidably inserted through one side of the support plate, and the connecting rod is slidably inserted through one side of the pressure pump. A rubber block is sleeved on the surface of the connecting rod, and one side of the rubber block is fixedly connected to one side of the inner wall of the pressure pump.

[0010] The effect achieved by the above components is as follows: when it is necessary to deflate the balloon, manually control the connecting rod to pull the support plate away from the pressurizing pump, and then pass the squeezing tube through the notch in the rubber plate. At this time, the sealing plug is squeezed, and the air inlet of the pressurizing pump is exposed. This can effectively expel the gas inside the balloon, and make it easier to remove the main body of the tube from the inside of the urethra. The inner wall of the rubber block is well squeezed inside the connecting rod, which can play a certain sealing role.

[0011] Preferably, a circular plate is fixedly connected to the end of the connecting rod away from the support plate, and a second damping rod is uniformly fixedly connected to the side of the circular plate near the connecting rod. The end of the second damping rod away from the circular plate is fixedly connected to the side of the pressurizing pump. A second spring is sleeved on the surface of the second damping rod. One end of the second spring is fixedly connected to one side of the circular plate, and the end of the second spring near the second damping rod is fixedly connected to the side of the pressurizing pump.

[0012] The effect achieved by the above components is that when venting is not required, the circular plate is pulled towards the pressure pump by the second spring, thereby causing the extrusion tube to move away from the rubber plate.

[0013] Preferably, the connecting device includes a rubber conical sleeve, which is fixedly connected to the surface of the pipe body at the end where the urine outlet is located, and the urine bag is fitted onto the end of the pipe body where the urine outlet is located.

[0014] The effect achieved by the above components is that when using the connecting device, the urine bag is placed on one end of the urine outlet opened at one end of the main body of the pipe, and then the rubber conical sleeve is placed inside the urine bag, so that the urine bag can be properly placed at one end of the main body of the pipe.

[0015] Preferably, a circular groove is formed on the inner wall of one end of the urine bag, and a rubber ring is provided on the inner wall of the circular groove. The rubber ring and the surface of the rubber conical sleeve are fixedly connected.

[0016] The effect achieved by the above components is to squeeze the rubber ring into the inside of the circular groove, which can effectively confine the rubber conical sleeve inside the urine bag.

[0017] Preferably, the rubber conical sleeve has an internal cavity, and a third damping rod is fixedly connected to one side of the inner wall of the cavity. The end of the third damping rod away from the main pipe body is fixedly connected to the other side of the inner wall of the cavity. A third spring is sleeved on the surface of the third damping rod. One end of the third spring is fixedly connected to one side of the inner wall of the cavity, and the end of the third spring near the third damping rod is fixedly connected to the other side of the inner wall of the cavity.

[0018] The effect achieved by the above components is that the cavity is squeezed towards the end away from the main body of the pipe by the third spring, thereby supporting the cavity. This allows the rubber cone to be well supported inside the urine bag.

[0019] Preferably, a connecting block is provided on the surface of the main body of the pipe, a limiting groove is provided on one side of the connecting block, a locking frame is slidably connected to the inner wall of the limiting groove, a fixing ring is provided on the inner wall of the locking frame, the fixing ring is fixedly connected to one end of the urine bag, a fourth spring is fixedly connected to one side of the inner wall of the limiting groove, and the end of the fourth spring away from the main body of the pipe is fixedly connected to one side of the locking frame.

[0020] The effect achieved by the above components is as follows: the locking frame is manually controlled to slide to the side of the inner wall of the limiting groove close to the main body of the pipe, and then the locking frame is fitted onto the surface of the connecting block and the fixing ring. The locking frame is pulled towards the main body of the pipe by the fourth spring, so that one side of the locking frame can be tightly pressed against the inner wall of the limiting groove close to the main body of the pipe.

[0021] In this invention, a limiting device is provided. When using the limiting device, an uninflated balloon is inserted into the urethra. Because the pressure pump is made of rubber, the pump is squeezed, forcing gas through the notch in the rubber plate and the connecting tube into the balloon. When the balloon is inflated to the appropriate degree, the rubber plate returns to its original shape, thus squeezing and blocking the notch. This forces the outside of the balloon against the inner wall of the urethra, effectively restricting one end of the main tube to the inside of the urethra. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a urinary catheter that facilitates urination is provided for this utility model;

[0023] Figure 2 A three-dimensional structural diagram of the novel sealing plug proposed in this utility model is provided.

[0024] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 A three-dimensional structural diagram of the novel card slot frame proposed in this utility model is provided.

[0026] Legend: 1. Main body of the pipe; 2. Inlet port; 3. Outlet port; 4. Urine bag; 5. Limiting device; 501. Balloon; 502. Connecting pipe; 503. Connecting ring; 504. Pressure pump; 505. Sealing plug; 506. Connecting plate; 507. First damping rod; 508. First spring; 509. Rubber plate; 510. Notch; 511. Squeezing pipe; 512. Support plate; 513. Connecting rod; 514. Circular plate; 515. Rubber block; 516. Second damping rod; 517. Second spring; 6. Connecting device; 601. Rubber conical sleeve; 602. Rubber ring; 603. Circular groove; 604. Cavity; 605. Third damping rod; 606. Third spring; 607. Fixing ring; 608. Connecting block; 609. Limiting groove; 610. Locking frame; 611. Fourth spring. Detailed Implementation

[0027] Example 1, such as Figure 1-4 As shown, a urinary catheter for facilitating urination has an inlet 2 at one end of the main body 1 and an outlet 3 at the other end. A urine bag 4 is provided at the end of the main body 1 near the outlet 3. A limiting device 5 and a connecting device 6 are provided on the surface of the main body 1. When using the urinary catheter, one end of the catheter is inserted into the urethra, allowing urine inside the bladder to be discharged through the catheter, thus facilitating urination.

[0028] Reference Figure 2 and Figure 3The limiting device 5 includes a balloon 501, which is fixedly connected to the surface of the main body of the pipe near the inlet 2. A connecting tube 502 is inserted into one side of the balloon 501. Connecting rings 503 are evenly distributed on the surface of the connecting tube 502, and one side of the connecting rings 503 is fixedly connected to the surface of the main body of the pipe. A pressure pump 504 is fixedly connected to the end of the connecting tube 502 away from the balloon 501. The pressure pump 504 is fixedly connected to the surface of the main body of the pipe. A rubber plate 509 is fixedly connected to the inner wall of the connecting tube 502. Notches 510 are evenly distributed on one side of the rubber plate 509. When using the limiting device 5, the uninflated balloon 501 is inserted into the urethra. Because the pressure pump 504 is made of rubber, it squeezes... The pressurizing pump 504 forces gas through the notch 510 in the rubber plate 509 and the connecting tube 502 into the balloon 501. When the balloon 501 is inflated to the appropriate level, the rubber plate 509 returns to its original shape, thus sealing the notch 510. This forces the outside of the balloon 501 against the inner wall of the urethra, effectively confining one end of the main tube 1 to the inside of the urethra. A sealing plug 505 is slidably inserted through the side of the pressurizing pump 504 away from the main tube 1. A connecting plate 506 is fixedly connected to the end of the sealing plug 505 near the pressurizing pump 504. A first damping rod 507 is fixedly connected to the end of the connecting plate 506 near the pressurizing pump 504. The end of the first damping rod 507 near the sealing plug 505 and... A first spring 508 is fixedly connected to one side of the inner wall of the pressure pump 504. The surface of the first damping rod 507 is fitted with a first spring 508. One end of the first spring 508 is fixedly connected to one side of the inner wall of the pressure pump 504. The end of the first spring 508 near the first damping rod 507 is fixedly connected to one end of the connecting plate 506. When the pressure pump 504 is manually squeezed, the sealing plug 505 blocks the air inlet of the pressure pump 504, thus effectively squeezing the pressure pump 504 into the connecting pipe 502. After the air is squeezed out, because the external environmental pressure is greater than the internal pressure of the pressure pump 504, the air is effectively forced into the pressure pump 504, thus maintaining a constant air supply inside the pressure pump 504. The connecting pipe 502 is located near the pressure pump 504. A compression tube 511 is slidably connected to the inner wall of the end of the compression tube 511. A support plate 512 is fixedly connected to the end of the compression tube 511 away from the connecting tube 502. A connecting rod 513 is slidably inserted through one side of the support plate 512. The connecting rod 513 is slidably inserted through one side of the pressurizing pump 504. A rubber block 515 is sleeved on the surface of the connecting rod 513. One side of the rubber block 515 is fixedly connected to one side of the inner wall of the pressurizing pump 504. When it is necessary to deflate the balloon 501, the connecting rod 513 is manually controlled to pull the support plate 512 away from the pressurizing pump 504, thereby pushing the compression tube 511 through the notch 510 on the rubber plate 509. At this time, the sealing plug 505 is squeezed, thereby exposing the air inlet of the pressurizing pump 504.This allows for effective gas expulsion from the balloon 501, facilitating the removal of the main tube 1 from the urethra. The inner wall of the rubber block 515 effectively seals the connecting rod 513, providing a degree of sealing. A circular plate 514 is fixedly connected to the end of the connecting rod 513 furthest from the support plate 512. A second damping rod 516 is uniformly fixedly connected to the side of the circular plate 514 closest to the connecting rod 513. The end of the second damping rod 516 furthest from the circular plate 514 is fixedly connected to the side of the pressurizing pump 504. A second spring 517 is fitted onto the surface of the second damping rod 516. One end of the second spring 517 is fixedly connected to one side of the circular plate 514, and the end of the second spring 517 closest to the second damping rod 516 is fixedly connected to the side of the pressurizing pump 504. When venting is not required, the second spring 517 pulls the circular plate 514 towards the pressurizing pump 504, thus moving the squeezing tube 511 away from the rubber plate 509.

[0029] Reference Figure 4The connecting device 6 includes a rubber conical sleeve 601, which is fixedly connected to the surface of the pipe body 1 at the end where the urine outlet 3 is located. A urine bag 4 is fitted onto the end of the pipe body 1 where the urine outlet 3 is located. When using the connecting device 6, the urine bag 4 is fitted onto the end of the pipe body 1 where the urine outlet 3 is located, and then the rubber conical sleeve 601 is placed inside the urine bag 4. This allows the urine bag 4 to be properly positioned at one end of the pipe body 1. A circular groove 603 is formed on the inner wall of one end of the urine bag 4, and a rubber ring 602 is provided on the inner wall of the circular groove 603. 2. The rubber conical sleeve 601 is fixedly connected to the surface, squeezing the rubber ring 602 into the interior of the circular groove 603. This effectively confines the rubber conical sleeve 601 within the urine bag 4. A cavity 604 is formed inside the rubber conical sleeve 601. A third damping rod 605 is fixedly connected to one side of the inner wall of the cavity 604. The end of the third damping rod 605 away from the main pipe body 1 is fixedly connected to the other side of the inner wall of the cavity 604. A third spring 606 is fitted onto the surface of the third damping rod 605. One end of the third spring 606 is fixedly connected to one side of the inner wall of the cavity 604. The third spring 606 is fixedly connected to the other side of the inner wall of the cavity 604 near the third damping rod 605. The third spring 606 compresses the cavity 604 away from the main body of the pipe 1, thereby supporting the cavity 604. This can effectively support the rubber conical sleeve 601 inside the urine bag 4. A connecting block 608 is provided on the surface of the main body of the pipe 1. A limiting groove 609 is provided on one side of the connecting block 608. A locking frame 610 is slidably connected to the inner wall of the limiting groove 609. A fixing ring 607 is provided on the inner wall of the locking frame 610. The fixing ring 607 and the urine bag 4 are connected together. One end is fixedly connected, and a fourth spring 611 is fixedly connected to one side of the inner wall of the limiting groove 609. The end of the fourth spring 611 away from the main body of the pipe is fixedly connected to one side of the locking frame 610. The locking frame 610 is manually controlled to slide to the side of the inner wall of the limiting groove 609 close to the main body of the pipe, and then the locking frame 610 is fitted onto the surface of the connecting block 608 and the fixing ring 607. The locking frame 610 is pulled towards the main body of the pipe by the fourth spring 611, so that one side of the locking frame 610 can be tightly pressed against the inner wall of the limiting groove 609 close to the main body of the pipe.

[0030] Working principle: When using a urinary catheter, one end is inserted into the urethra, allowing urine to drain from the bladder. When using the limiting device 5, an uninflated balloon 501 is inserted into the urethra. Because the pressure pump 504 is surrounded by rubber, squeezing the pump forces air through the notch 510 in the rubber plate 509 and the connecting tube 502 into the balloon 501. When the balloon 501 is inflated to the appropriate level, the rubber plate 509 returns to its original shape, sealing the notch 510. This allows the balloon 501 to... The external pressure is applied to the inner wall of the urethra, effectively confining one end of the tubing body 1 inside the urethra. When deflation of the balloon 501 is required, the connecting rod 513 is manually pulled away from the pressure pump 504, causing the compression tube 511 to pass through the notch 510 in the rubber plate 509. This compresses the sealing plug 505, exposing the air inlet of the pressure pump 504, allowing the gas inside the balloon 501 to be expelled, facilitating the removal of the tubing body 1 from the urethra. After the air is expelled, the external pressure is greater than that of the pressure pump 504. The internal pressure effectively forces air into the pressure pump 504, ensuring a constant supply of air inside. When venting is not required, the second spring 517 pulls the circular plate 514 closer to the pressure pump 504, causing the squeezing tube 511 to move away from the rubber plate 509. When using the connecting device 6, the urine bag 4 is fitted onto one end of the urine outlet 3 at one end of the pipe body 1, and the rubber conical sleeve 601 is placed inside the urine bag 4. The rubber ring 602 is squeezed into the circular groove 603, and the third spring 606 squeezes the cavity 604 away from the pipe body 1. The cavity 604 is supported, which effectively supports the rubber conical sleeve 601 inside the urine bag 4, thus confining the rubber conical sleeve 601 inside the urine bag 4. The locking frame 610 is manually controlled to slide to the inner wall of the limiting groove 609 near the pipe body 1, and then the locking frame 610 is fitted onto the surface of the connecting block 608 and the fixing ring 607. The locking frame 610 is pulled towards the pipe body 1 by the fourth spring 611, which effectively presses one side of the locking frame 610 tightly against the inner wall of the limiting groove 609 near the pipe body 1, thus effectively setting the urine bag 4 at one end of the pipe body 1.

[0031] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process.

Claims

1. A urinary catheter for facilitating urination, comprising a tubing body (1), characterized in that: One end of the main body of the pipe (1) is provided with a urine inlet (2), and the other end of the main body of the pipe (1) away from the urine inlet (2) is provided with a urine outlet (3). A urine bag (4) is provided at the end of the main body of the pipe (1) near the urine outlet (3). A limiting device (5) is provided on the surface of the main body of the pipe (1), and a connecting device (6) is provided on the surface of the main body of the pipe (1). The limiting device (5) includes a balloon (501), which is fixedly connected to the surface of the main body of the pipe (1) near the urine inlet (2). A connecting tube (502) is inserted into one side of the 01), and a connecting ring (503) is evenly arranged on the surface of the connecting tube (502). One side of the connecting ring (503) is fixedly connected to the surface of the pipe body (1). A pressurizing pump (504) is fixedly connected to one end of the connecting tube (502) away from the balloon (501). The pressurizing pump (504) is fixedly connected to the surface of the pipe body (1). A rubber plate (509) is fixedly connected to the inner wall of the connecting tube (502). A notch (510) is evenly opened on one side of the rubber plate (509).

2. The urinary catheter for facilitating urination according to claim 1, characterized in that: A sealing plug (505) is slidably inserted through the side of the pressurizing pump (504) away from the main pipe body (1). A connecting plate (506) is fixedly connected to one end of the sealing plug (505) near the pressurizing pump (504). A first damping rod (507) is fixedly connected to one end of the connecting plate (506) near the pressurizing pump (504). One end of the first damping rod (507) near the sealing plug (505) is fixedly connected to one side of the inner wall of the pressurizing pump (504). A first spring (508) is sleeved on the surface of the first damping rod (507). One end of the first spring (508) is fixedly connected to one side of the inner wall of the pressurizing pump (504). One end of the first spring (508) near the first damping rod (507) is fixedly connected to one end of the connecting plate (506).

3. The urinary catheter for facilitating urination according to claim 1, characterized in that: A compression tube (511) is slidably connected to the inner wall of the connecting tube (502) near the pressure pump (504). A support plate (512) is fixedly connected to the end of the compression tube (511) away from the connecting tube (502). A connecting rod (513) is slidably inserted through one side of the support plate (512). The connecting rod (513) is slidably inserted through one side of the pressure pump (504). A rubber block (515) is sleeved on the surface of the connecting rod (513). One side of the rubber block (515) is fixedly connected to one side of the inner wall of the pressure pump (504).

4. A urinary catheter for facilitating urination according to claim 3, characterized in that: A circular plate (514) is fixedly connected to one end of the connecting rod (513) away from the support plate (512). A second damping rod (516) is uniformly fixedly connected to one side of the circular plate (514) near the connecting rod (513). The end of the second damping rod (516) away from the circular plate (514) is fixedly connected to one side of the pressure pump (504). A second spring (517) is sleeved on the surface of the second damping rod (516). One end of the second spring (517) is fixedly connected to one side of the circular plate (514). The end of the second spring (517) near the second damping rod (516) is fixedly connected to one side of the pressure pump (504).

5. A urinary catheter for facilitating urination according to claim 1, characterized in that: The connecting device (6) includes a rubber conical sleeve (601), which is fixedly connected to the surface of the pipe body (1) at the end where the urine outlet (3) is opened, and the urine bag (4) is sleeved on the end of the pipe body (1) where the urine outlet (3) is opened.

6. A urinary catheter for facilitating urination according to claim 1, characterized in that: A circular groove (603) is provided on the inner wall of one end of the urine bag (4), and a rubber ring (602) is provided on the inner wall of the circular groove (603). The rubber ring (602) and the surface of the rubber conical sleeve (601) are fixedly connected.

7. A urinary catheter for facilitating urination according to claim 5, characterized in that: The rubber conical sleeve (601) has a cavity (604) inside. A third damping rod (605) is fixedly connected to one side of the inner wall of the cavity (604). The end of the third damping rod (605) away from the pipe body (1) is fixedly connected to the other side of the inner wall of the cavity (604). A third spring (606) is sleeved on the surface of the third damping rod (605). One end of the third spring (606) is fixedly connected to one side of the inner wall of the cavity (604), and the end of the third spring (606) close to the third damping rod (605) is fixedly connected to the other side of the inner wall of the cavity (604).

8. A urinary catheter for facilitating urination according to claim 1, characterized in that: A connecting block (608) is provided on the surface of the main body of the pipe (1). A limiting groove (609) is provided on one side of the connecting block (608). A locking frame (610) is slidably connected to the inner wall of the limiting groove (609). A fixing ring (607) is provided on the inner wall of the locking frame (610). The fixing ring (607) is fixedly connected to one end of the urine bag (4). A fourth spring (611) is fixedly connected to one side of the inner wall of the limiting groove (609). The end of the fourth spring (611) away from the main body of the pipe (1) is fixedly connected to one side of the locking frame (610).