A urinary catheterization device for obstetric and gynecological care
By combining a urine bag, catheter, balloon, and stop valve, the problem of bacteria growth from urine dripping into the sealed box is solved, achieving clean and safe use of the catheterization device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江西省肿瘤医院(江西省第二人民医院 江西省癌症中心)
- Filing Date
- 2025-03-14
- Publication Date
- 2026-06-30
Smart Images

Figure CN224421589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of obstetric and gynecological catheterization, specifically a catheterization device for obstetric and gynecological care. Background Technology
[0002] The medical catheterization device mainly consists of a urine bag, a first tube, a second tube, and a rubber urine collection cup. The rubber urine collection cup receives the urine, which is then collected into the urine bag through the two sets of tubes. The urine bag can then be processed later.
[0003] According to publicly available patent CN222399656U, a urinary catheterization device for obstetric and gynecological care relates to the field of urinary catheterization devices. This device includes a urine bag and a first tube connected to the urine bag. A second tube is attached to one end of the first tube, and a rubber urine collection cup is attached to one end of the second tube. In developing this invention, the inventors discovered that the existing technology has at least the following unresolved problems: While the conventional method uses a sealed box with a torsion spring-controlled sealing plate inside and a sponge block near the bottom of the sealing box close to the connection hole, this method protects the end of the first tube from direct dripping of urine. However, while this effectively prevents urine from dripping directly into the external environment, any urine left inside the sealed box can easily breed bacteria, produce odors, and cause urinary tract infections. Therefore, a new technical solution is needed to address these issues. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a urinary catheterization device for obstetric and gynecological care. This device can solve the technical problem that although it can effectively prevent urine left inside the first catheter from dripping directly into the external environment, the dripped urine left in the sealed box is prone to bacterial growth, odor, and urinary tract infection.
[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a urinary catheterization device for obstetric and gynecological care is designed, including a urine belt and a urinary catheter. The top of the urine belt is connected to a connecting tube, the bottom of the urinary catheter is connected to a spherical balloon, the bottom of the spherical balloon is connected to a soft catheter, and a check valve is provided on the outside of both the urinary catheter and the soft catheter. The bottom of the soft catheter is connected to a rigid connecting tube, and the connecting tube is sleeved on the outside of the rigid connecting tube.
[0006] The stop valve includes a connecting block with a perforation at one end. The connecting block is fitted onto the outside of the urinary catheter and soft tubing through the perforation. A rectangular hole is formed at the top of the connecting block, communicating with the perforation. A connecting plate is provided inside the perforation. Mounting plates are installed on both sides of the bottom of the connecting plate. A pressure roller is installed between the two mounting plates. Elastic plates are inclinedly connected to both sides of the surface of the connecting plate. The two elastic plates are in an inverted V-shape. A retaining plate is installed at one outer end of each of the two elastic plates.
[0007] Preferably, a pull rod is fixedly connected to the connecting plate between the two elastic plates, and a handwheel is fixedly connected to the top of the pull rod. The diameter of the handwheel is larger than the diameter of the pull rod, and the height of the pull rod is higher than the height of the elastic plate.
[0008] Preferably, a fixing strap is installed on both sides of one end of the urine belt, and Velcro is installed on the inner side of one fixing strap and the outer side of the other fixing strap.
[0009] Preferably, the bottom of the urine bag is connected to a drain pipe, and a control valve is installed on the drain pipe.
[0010] Preferably, the width of the elastic plate is the same as the width of the rectangular hole, and the width of the connecting plate is adapted to the width of the upper side of the perforated cavity.
[0011] Preferably, limiting discs are installed on the outer sides of the catheter and soft tubing on both the upper and lower sides of the stop valve, and the size of the limiting discs is the same as the size of the perforation.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention combines a check valve, a catheter, a balloon, a connecting tube, and a rigid connecting tube. The check valve stops the flow from the catheter. The balloon is then continuously squeezed to expel residual urine from the catheter, balloon, and connecting tube into the urine bag. The connecting tube is then detached from the rigid connecting tube, thus disassembling the urine bag and preventing residual urine from dripping onto the catheter surface or into the sealed box, causing contamination. Furthermore, if the catheter becomes blocked by blood clots or sediment during catheterization, the check valve on the catheter is first closed. The balloon is then squeezed to expel its internal gas into the urine bag. The check valve on the soft catheter is then closed, and the check valve on the catheter is slowly opened. The balloon then resets, drawing blood clots or sediment from the catheter into the balloon and expelling them into the urine bag, thus clearing the blockage and ensuring normal catheterization. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram showing the connection between the spherical balloon and the catheterization tubing and soft catheter of this utility model.
[0016] Figure 3 This is a schematic diagram of the check valve structure of this utility model;
[0017] Figure 4 This is a cross-sectional view of the check valve of this utility model;
[0018] Figure 5 This is a schematic diagram of the connection structure between the urine belt and the fixing belt of this utility model.
[0019] In the diagram: 1. Urine bag; 11. Connecting hose; 12. Drainage tube; 13. Control valve; 2. Catheter hose; 21. Balloon; 22. Soft catheter; 23. Rigid connecting tube; 3. Check valve; 31. Connecting block; 32. Perforation; 33. Rectangular hole; 34. Connecting plate; 35. Mounting plate; 36. Elastic plate; 37. Pull rod; 38. Handwheel; 39. Clamping plate; 310. Pressure roller; 4. Limiting disc; 5. Fixing strap; 51. Velcro. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0021] Example 1: A urinary catheterization device for obstetric and gynecological care, see [link to example]. Figures 1 to 5The device includes a urine bag 1 and a catheter 2. The top of the urine bag 1 is connected to a connecting tube 11, and the bottom of the catheter 2 is connected to a spherical balloon 21. The bottom of the spherical balloon 21 is connected to a flexible catheter 22. Both the catheter 2 and the flexible catheter 22 are equipped with check valves 3 on their outer sides. The bottom of the flexible catheter 22 is connected to a rigid connecting tube 23, and the connecting tube 11 is sleeved on the outside of the rigid connecting tube 23. The bottom of the urine bag 1 is connected to a drain pipe 12, and a control valve 13 is installed on the drain pipe 12. The check valve 3 includes a connecting block 31. One end of the connecting block 31 has a perforation 32. The connecting block 31 is sleeved on the outside of the catheter 2 and the soft catheter 22 through the perforation 32. The top of the connecting block 31 has a rectangular hole 33, which communicates with the perforation 32. A connecting plate 34 is provided in the inner cavity of the perforation 32. Mounting plates 35 are installed on both sides of the bottom of the connecting plate 34. A pressure roller 310 is installed between the two mounting plates 35. Elastic plates 36 are inclinedly connected to both sides of the surface of the connecting plate 34. The two elastic plates 36 are in an inverted V-shape. A clamping plate 39 is installed on one side of the outer end of each of the two elastic plates 36. During operation, when replacing the urine bag 1, the elastic plate 36 is pushed to engage the clamping plate 39 at the top of the inner cavity of the perforation 32. Simultaneously, the pressure roller 310 compresses the catheter tube 2 to stop its flow. Then, by continuously squeezing the spherical airbag 21, the residual urine in the catheter tube 2, spherical airbag 21, and connecting hose 11 below the stop valve 3 is squeezed and discharged into the urine bag 1. Then, the connecting hose 11 is detached from the rigid connecting tube 23, thus completing the disassembly of the urine bag 1. This prevents residual urine in the tube from dripping onto the ground or into the sealed box, causing contamination. Furthermore, it prevents blood clots or sediment from forming on the catheter tube 2 during catheterization. In case of blockage, first close the stop valve 3 on the catheter 2, then squeeze the balloon 21 to expel the gas inside into the urine bag 1, then close the stop valve 3 on the soft catheter 22, and then slowly open the stop valve 3 on the catheter 2. This will allow the balloon 21 to reset and draw blood clots or deposits from the catheter 2 into the balloon 21. Then close the stop valve 3 on the catheter 2, open the stop valve 3 on the catheter 2, and squeeze the balloon 21 to expel the blood clots or deposits into the urine bag 1. This will clear the blockage in the catheter 2 and ensure that the catheter 2 can carry out normal urination.
[0022] For details, see Figure 3 and Figure 4A pull rod 37 is fixedly connected to the connecting plate 34 between the two elastic plates 36. A handwheel 38 is fixedly connected to the top of the pull rod 37, and the diameter of the handwheel 38 is larger than the diameter of the pull rod 37. The pull rod 37 and the handwheel 38 make it easy for personnel to hold the handle, so that personnel can manually push the connecting plate 34 to drive the clamping plate 39 to engage with the top of the inner cavity of the perforation 32 to stop the flow of the catheter 2 and the soft catheter 22. The height of the pull rod 37 is higher than the height of the elastic plate 36. The width of the elastic plate 36 is the same as the width of the rectangular hole 33. The width of the connecting plate 34 is adapted to the width of the upper side of the inner cavity of the perforation 32 to improve the stability of the pressure roller 310 moving in the perforation 32.
[0023] Further, see Figure 5 The urine bag 1 is equipped with fixing straps 5 on both sides of one end. Velcro 51 is installed on the inner side of one fixing strap 5 and the outer side of the other fixing strap 5 to facilitate the personnel to fix the urine bag 1 to the patient's leg.
[0024] It is worth noting that, see Figure 2 Limiting discs 4 are installed on the outer sides of the catheter 2 and soft catheter 22 on both the upper and lower sides of the stop valve 3. The size of the limiting discs 4 and the size of the perforation 32 are used to limit the stop valve 3 and prevent the stop valve 3 from sliding on the catheter 2 and soft catheter 22.
[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.
[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. A urinary catheterization device for obstetric and gynecological care, comprising a urine bag (1) and a catheter (2), characterized in that, The top of the urine bag (1) is connected to a connecting hose (11), the bottom of the catheter (2) is connected to a spherical balloon (21), the bottom of the spherical balloon (21) is connected to a soft catheter (22), a check valve (3) is provided on the outside of both the catheter (2) and the soft catheter (22), the bottom of the soft catheter (22) is connected to a rigid connecting tube (23), and the connecting hose (11) is sleeved on the outside of the rigid connecting tube (23); The stop valve (3) includes a connecting block (31). One end of the connecting block (31) has a perforation (32). The connecting block (31) is sleeved on the outside of the catheter (2) and the soft catheter (22) through the perforation (32). A rectangular hole (33) is opened at the top of the connecting block (31). The rectangular hole (33) communicates with the perforation (32). A connecting plate (34) is provided in the inner cavity of the perforation (32). Mounting plates (35) are installed on both sides of the bottom of the connecting plate (34). A pressure roller (310) is installed between the two mounting plates (35). Elastic plates (36) are inclinedly connected to both sides of the surface of the connecting plate (34). The two elastic plates (36) are in the shape of an inverted V. A clamping plate (39) is installed at one end of the outer side of the two elastic plates (36).
2. The urinary catheterization device for obstetric and gynecological care as described in claim 1, characterized in that, A pull rod (37) is fixedly connected to the connecting plate (34) between the two elastic plates (36). A handwheel (38) is fixedly connected to the top of the pull rod (37), and the diameter of the handwheel (38) is larger than the diameter of the pull rod (37). The height of the pull rod (37) is higher than the height of the elastic plate (36).
3. The urinary catheterization device for obstetric and gynecological care as described in claim 1, characterized in that, The urine belt (1) is equipped with fixing straps (5) on both sides of one end, and Velcro (51) is installed on the inner side of one fixing strap (5) and the outer side of the other fixing strap (5).
4. The urinary catheterization device for obstetric and gynecological care as described in claim 1, characterized in that, The bottom of the urine belt (1) is connected to a drain pipe (12), and a control valve (13) is installed on the drain pipe (12).
5. The urinary catheterization device for obstetric and gynecological care as described in claim 1, characterized in that, The width of the elastic plate (36) is the same as the width of the rectangular hole (33), and the width of the connecting plate (34) is adapted to the width of the upper side of the cavity of the perforation (32).
6. The urinary catheterization device for obstetric and gynecological care as described in claim 1, characterized in that, The urinary catheter (2) and soft catheter (22) on both sides of the stop valve (3) are equipped with limiting discs (4), and the size of the limiting discs (4) is the same as the size of the perforation (32).