Leak-proof urinary catheter

Abstract

This utility model relates to the field of urinary catheter technology, specifically a leak-proof urinary catheter, comprising a urinary catheter, a collection cup, a connector, and a one-way valve. The collection cup is sleeved on the outside of the urinary catheter, and the bottom end of the collection cup has a guide tube for guiding the liquid in the collection cup into the urinary catheter during use. The one-way valve is located at one end of the urinary catheter and below the guide tube. The connector is installed at one end of the urinary catheter, and the bottom end of the connector has a urine bag for collecting and releasing urine during use. This utility model, by setting a one-way valve between the guide tube and the urine bag, and connecting both ends of the guide tube to the urinary catheter and the collection cup respectively, allows the urine collected in the collection cup to be transported into the urinary catheter and then unidirectionally transported to the urine bag through the one-way valve, preventing backflow and leakage of urine in the urine bag.

Description

Technical Field

[0001] This utility model relates to the field of urinary catheter technology, specifically to a leak-proof urinary catheter. Background Technology

[0002] Medically, a urinary catheter is inserted through the urethra into the bladder to drain urine. There are two types of catheterization: indwelling catheterization and intermittent catheterization. In indwelling catheterization, the catheter remains in place and should be removed as soon as the patient's condition permits; it must be changed regularly. In intermittent catheterization, the catheter is inserted every 4-6 hours and removed after the bladder is empty. Some patients who cannot urinate independently require prolonged catheterization.

[0003] Chinese patent document CN219681282U discloses a leak-proof urinary catheter, including a waist belt, a urine collection bag, and a urinary catheter. A fixing rod is fixedly connected to the lower side of the waist belt, and a fixing clip is fixedly fixed to the upper side of the urine collection bag. The fixing clip corresponds to the fixing rod. The urine collection bag is connected to the urinary catheter. An air balloon is installed at one end of the urinary catheter. A urine collection funnel is slidably fitted on the urinary catheter. A connecting tube is installed between the urine collection funnel and the urine collection bag. The urine collection funnel has a funnel-shaped structure, and a sealing gasket is installed at the connection between the urine collection funnel and the urinary catheter.

[0004] However, in the above solution, the urine collection bucket is connected to the urine collection bag through a connecting tube. The urine collection bag is only drained or replaced after reaching a certain capacity. During use, the urine collection bag may be squeezed, causing the urine in the urine collection bag to be transported to the urine collection bucket through the connecting tube, resulting in leakage and affecting the user experience. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a leak-proof catheter.

[0006] The technical solution of this utility model is: a leak-proof urinary catheter, comprising a urinary catheter, a collection cup, a connector and a one-way valve;

[0007] The collection cup is fitted on the outside of the urinary catheter, and the bottom of the collection cup is provided with a guide tube for guiding the liquid in the collection cup into the urinary catheter during use.

[0008] A one-way valve is located at one end of the catheter and below the drainage tube;

[0009] The connector is installed at one end of the catheter, and the bottom end of the connector is equipped with a urine bag for discharging urine during use.

[0010] Preferably, a flow stop clamp is provided in the middle of the flow guide tube, and the clamping force of the flow stop clamp is greater than the elastic force of the flow guide tube itself.

[0011] Preferably, the liquid collection cup includes a cup body and a cup bottom;

[0012] The bottom of the cup is placed on the outside of the catheter;

[0013] The cup body is installed on the upper surface of the cup bottom and is connected to the cup bottom.

[0014] Preferably, the bottom of the cup has a cavity with an opening at the top in the middle, and the cavity is shaped like a frustum.

[0015] Preferably, a connecting tube is provided in the middle of the cavity at the bottom of the cup, and a sealing sleeve is fitted on the outside of the connecting tube, with the top of the sealing sleeve wrapping around the outside of the catheter.

[0016] Preferably, the connector includes a connecting sleeve, an internally threaded tube, and an installation tube;

[0017] The insertion tube is inserted into the inside of the bottom end of the urinary catheter;

[0018] The connecting sleeve is placed on the outside of the urinary catheter and wrapped around the outside of the installation tube;

[0019] The internally threaded tube is installed at the bottom of the connecting sleeve and connected to the urine bag.

[0020] Preferably, the top of the urine bag is provided with a threaded connector, and the internal threaded tube is threadedly connected to the threaded connector.

[0021] Preferably, the outer side of the insertion tube is provided with a protruding ring, the outer side of the protruding ring is connected to the inner side of the catheter, and the number of protruding rings is at least one.

[0022] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0023] This invention features a one-way valve between the drainage tube and the urine bag, with both ends of the drainage tube connected to the urinary catheter and the collection cup, respectively. This allows the urine collected in the collection cup to be transported through the urinary catheter and then unidirectionally transported to the urine bag via the one-way valve, preventing backflow and leakage of urine from the urine bag. Attached Figure Description

[0024] Figure 1 This is a perspective view of one embodiment of the present invention.

[0025] Figure 2 This is a cross-sectional schematic diagram of the liquid collecting cup structure in one embodiment of the present invention.

[0026] Figure 3 This is an exploded view of the connector structure in one embodiment of the present invention.

[0027] Figure 4 This is a cross-sectional schematic diagram of the connector structure in one embodiment of the present invention.

[0028] Reference numerals in the attached diagram: 1. Urinary catheter; 2. Collection cup; 21. Cup body; 22. Cup bottom; 23. Sealing sleeve; 24. Connecting tube; 3. Connecting head; 31. Connecting sleeve; 32. Internally threaded tube; 33. Installation tube; 4. Stop clamp; 5. One-way valve; 6. Drainage tube; 7. Urinary bag; 8. Raised ring; 9. Threaded connector. Detailed Implementation

[0029] Example 1

[0030] like Figure 1-4 As shown, the present invention proposes a leak-proof urinary catheter, which includes a urinary catheter 1, a collection cup 2, a connector 3, and a one-way valve 5.

[0031] The collection cup 2 is fitted on the outside of the catheter 1 and is used to collect urine that leaks between the urethra and the catheter 1 during use. The bottom of the collection cup 2 is provided with a guide tube 6 for guiding the liquid in the collection cup 2 into the catheter 1 during use, so that the urine flows in one direction.

[0032] One-way valve 5 is located at one end of the urinary catheter 1 and below the drainage tube 6. It is used to allow the urine in the urinary catheter 1 to flow in one direction and prevent backflow of urine inside the urine bag 7. The one-way valve 5 is existing technology and is only shown in the figure.

[0033] The connector 3 is installed at one end of the catheter 1, and the bottom end of the connector 3 is provided with a urine bag 7 for discharging urine in use.

[0034] In an optional embodiment, a stop-flow clamp 4 is provided in the middle of the drainage tube 6. The clamping force of the stop-flow clamp 4 is greater than the elastic force of the drainage tube 6 itself. It is used to close the inner channel of the drainage tube 6 by the clamping force of the stop-flow clamp 4 during use, effectively preventing urine backflow, ensuring the sealing of the urine catheterization process, and avoiding leakage. In the prior art, a one-way valve can also be selected for the stop-flow clamp 4 during use to prevent the stop-flow clamp 4 from falling off.

[0035] In this embodiment, by setting a one-way valve 5 between the drainage tube 6 and the urine bag 7, and setting a flow stop clamp 4 in the middle of the drainage tube 6, the backflow of urine caused by pressure in the urine bag 7 can be avoided after the urine is delivered from the catheter 1 to the urine bag 7. At the same time, the urine leaking from the urethra on the outside of the catheter 1 is collected by the collection cup 2, and the urine in the collection cup 2 is guided to the catheter 1 through the drainage tube 6, ensuring one-way flow of urine and avoiding the risk of leakage.

[0036] Example 2

[0037] like Figure 2 As shown, the present invention proposes a leak-proof catheter. Compared with the first embodiment, the difference in this embodiment is that the collection cup 2 includes a cup body 21 and a cup bottom 22.

[0038] The cup bottom 22 is set on the outside of the urinary catheter 1;

[0039] The cup body 21 is installed on the upper surface of the cup bottom 22 and is connected to the cup bottom 22.

[0040] In an optional embodiment, the cup bottom 22 has a cavity with an open top in the middle, and the cavity is truncated cone-shaped, so that mucus can flow into the cavity along the outside of the catheter 1, so that the cavity can collect it and guide it into the inside of the catheter 1 through the drainage tube 6.

[0041] In an optional embodiment, a connecting tube 24 is provided in the middle of the cavity of the cup bottom 22, and a sealing sleeve 23 is provided on the outside of the connecting tube 24. The top of the sealing sleeve 23 is wrapped around the outside of the catheter 1. The inner dimension of the sealing sleeve 23 is smaller than the outer dimension of the catheter 1, so as to ensure a tighter connection between the sealing sleeve 23 and the catheter 1 during use and prevent leakage.

[0042] In this embodiment, the cup bottom 22 is sleeved on the outside of the urinary catheter 1 through the connecting tube 24, and the cup body 21 is made to increase the cavity depth of the cup bottom 22. At the same time, the sealing sleeve 23 is sleeved on the outside of the connecting tube 24 and wrapped around the outside of the urinary catheter 1, so that the connecting tube 24 and the urinary catheter 1 are in a sealed state, so that the cup bottom 22 collects the urine that leaks from the outside of the urinary catheter 1.

[0043] Example 3

[0044] like Figure 3-4 As shown, the present invention proposes a leak-proof catheter. Compared with the first embodiment, the difference in this embodiment is that the connector 3 includes a connecting sleeve 31, an internal threaded tube 32, and an installation tube 33.

[0045] The installation tube 33 is inserted into the inner side of the bottom end of the urinary catheter 1. Its cross-sectional shape is conical, and the top dimension is smaller than the inner dimension of the urinary catheter 1, while the bottom dimension is larger than the inner dimension of the urinary catheter 1. It is used to fix the installation tube 33 to the inner side of the end of the urinary catheter 1.

[0046] The connecting sleeve 31 is fitted on the outside of the catheter 1 and wrapped around the outside of the installation tube 33. It is used to press the catheter 1 outside the installation tube 33 during use, thereby improving the tightness of the connection between the catheter 1 and the installation tube 33.

[0047] The internally threaded tube 32 is installed at the bottom of the connecting sleeve 31 and connected to the urine bag 7, so as to connect the catheter 1 to the urine bag 7 and to deliver urine into the urine bag 7 through the catheter 1.

[0048] In an optional embodiment, the top of the urine bag 7 is provided with a threaded connector 9, and the internal threaded tube 32 is threadedly connected to the threaded connector 9 to make the catheter 1 and the urine bag 7 detachably connected, so that the urine bag 7 can be replaced or drained more conveniently.

[0049] In an optional embodiment, a protruding ring 8 is provided on the outer side of the installation tube 33. The outer side of the protruding ring 8 is connected to the inner side of the catheter 1, and the number of protruding rings 8 is at least one, which is used to increase the friction on the outer side of the installation tube 33, thereby improving the stability of the connection between the installation tube 33 and the catheter 1.

[0050] In this embodiment, a threaded connector 9 is provided at the top of the urine bag 7, and the installation tube 33 is inserted into the inner side of the end of the catheter 1, and the installation tube 33 abuts against the end of the threaded connector 9. At the same time, the internal threaded tube 32 is threadedly connected to the threaded connector 9, and the internal threaded tube 32 drives the connecting sleeve 31 to press the catheter 1 outside the installation tube 33, so that the connection between the catheter 1 and the urine bag 7 is relatively tight.

[0051] In this invention, during catheterization, the catheter 1 is inserted into the urethra and fixed inside the urethra by a balloon (not shown in the prior art diagram). Simultaneously, the installation tube 33 is inserted into the inner side of the end of the catheter 1, and the installation tube 33 abuts against the end of the threaded connector 9. At the same time, the internally threaded tube 32 is threadedly connected to the threaded connector 9, and the connecting sleeve 31 drives the internally threaded tube 32 to press against the catheter 1 outside the installation tube 33, thereby fixing the catheter 1 to the urine bag 7. The urine flows into the urine bag 7 through the one-way valve 5 in the catheter 1. At the same time, the cup body 21 slides on the catheter 1, so that the cup body 21 covers the urethral opening. Meanwhile, the sealing sleeve 23 seals the connection between the connecting tube 24 and the catheter 1, so that the bottom 22 of the cup can effectively collect the urine that leaks between the catheter 1 and the urethra and deliver it into the catheter 1 through the threaded connector 9. The flow stop clamp 4 closes the guide tube 6, so that the urine is delivered into the urine bag 7 in the catheter 1, preventing urine leakage.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A leak-proof catheter, characterized in that, It includes a urinary catheter (1), a collection cup (2), a connector (3), and a one-way valve (5); The collection cup (2) is sleeved on the outside of the catheter (1), and the bottom end of the collection cup (2) is provided with a guide tube (6) for guiding the liquid in the collection cup (2) into the catheter (1) in the use state; A one-way valve (5) is located at one end of the catheter (1) and below the drainage tube (6); The connector (3) is installed at one end of the catheter (1), and the bottom end of the connector (3) is provided with a urine bag (7) for storing urine in use.

2. The leak-proof catheter according to claim 1, characterized in that, A flow stop clamp (4) is provided in the middle of the flow guide (6), and the clamping force of the flow stop clamp (4) is greater than the elastic force of the flow guide (6).

3. The leak-proof catheter according to claim 1, characterized in that, The collection cup (2) includes a cup body (21) and a cup bottom (22); The bottom of the cup (22) is fitted over the outside of the catheter (1); The cup body (21) is installed on the upper surface of the cup bottom (22) and is connected to the cup bottom (22).

4. The leak-proof catheter according to claim 1, characterized in that, The bottom (22) of the cup has a cavity with an open top in the middle, and the cavity is shaped like a frustum.

5. A leak-proof catheter according to claim 1, characterized in that, A connecting tube (24) is provided in the middle of the cavity of the cup bottom (22), and a sealing sleeve (23) is provided on the outside of the connecting tube (24). The top of the sealing sleeve (23) is wrapped around the outside of the catheter (1).

6. The leak-proof catheter according to claim 1, characterized in that, The connector (3) includes a connecting sleeve (31), an internally threaded tube (32), and an installation tube (33); The installation tube (33) is inserted into the inner side of the bottom end of the catheter (1); The connecting sleeve (31) is fitted over the outside of the catheter (1) and wrapped around the outside of the installation tube (33); The internally threaded tube (32) is installed at the bottom of the connecting sleeve (31) and connected to the urine bag (7).

7. The leak-proof catheter according to claim 1, characterized in that, The top of the urine bag (7) is provided with a threaded connector (9), and the internal threaded tube (32) is threadedly connected to the threaded connector (9).

8. A leak-proof catheter according to claim 1, characterized in that, The outer side of the installation tube (33) is provided with a protruding ring (8), the outer side of the protruding ring (8) is connected to the inner side of the catheter (1), and the number of protruding rings (8) is at least one.

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