Novel urinary catheterization device

Abstract

The utility model discloses a novel urethral catheterization device, and relates to the field of medical instruments. A spherical air bag is arranged at the end of the sleeve, the bottom of the spherical air bag is communicated with the sleeve, a columnar air bag is arranged below the spherical air bag, two ports of the columnar air bag are communicated with the sleeve, and tightening rings are arranged at the upper end and the lower end of the columnar air bag and tightly attached to the outer wall of the sleeve. A water injection hard valve is installed at the lower end of one side of the sleeve, one end of the water injection hard valve is communicated with the sleeve, and the problem that a small amount of urine leaks out of the catheter in the process that the urinary catheterization device enters the bladder is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel urinary catheterization device. Background Art

[0002] A urinary catheterization device is an important medical aid, primarily used to facilitate the smooth drainage of urine in patients who are unable to urinate normally. The urinary catheter, the core component of the device, is typically made of medical-grade silicone or rubber, offering excellent biocompatibility and tolerability. The urine bag, a container for collecting urine, is typically made of transparent, soft plastic, facilitating observation of urine color and flow. A urinary catheter holder secures the position of the catheter, reducing the risk of displacement and ensuring the effectiveness and safety of the catheterization process. Urinary catheterization devices are widely used for a variety of patient needs, including those requiring urinary retention, urinary incontinence, monitoring urine output in critically ill patients, and patients undergoing urological surgery. The placement of an indwelling urinary catheter can effectively alleviate pain and promote recovery.

[0003] For example, the Chinese patent application "A Urinary Catheterization Device," with publication number CN219662432U, includes a drainage tube, one side of which is provided with a liquid catheter, one end of which is connected to one end of the drainage tube, and the other end of which is connected to a liquid storage bag; a balloon, which is provided at the end of the drainage tube and away from the one end of the drainage tube, and the other side of the drainage tube is provided with a thin tube, one end of which extends from one end of the drainage tube into the interior of the drainage tube and extends through the other end of the drainage tube and into the balloon. The urinary catheterization device provided by this utility model, through a multi-structure coordinated design, enables the device to inject an appropriate amount of saline or required liquid into the bladder, thereby properly filling the bladder.

[0004] Although the above-mentioned existing technology can help patients who cannot urinate normally to achieve smooth urine discharge, the balloon on the tube body needs to enter the bladder before it can be expanded. Therefore, during use, a small amount of urine may leak out of the catheter tube. Therefore, it does not meet the existing needs. In this regard, we have proposed a new urinary catheterization device. Utility Model Content

[0005] The purpose of the present invention is to provide a novel urinary catheterization device to solve the problem that a small amount of urine leaks out of the catheter tube during the process of the urinary catheterization device proposed in the above background art entering the bladder.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a novel urinary catheterization device, comprising a sleeve; a spherical airbag is provided at the end of the sleeve, and the bottom of the spherical airbag is connected to the sleeve; a cylindrical airbag is provided below the spherical airbag, and the two ports of the cylindrical airbag are respectively connected to the sleeve; the upper and lower ends of the cylindrical airbag are both provided with a tightening ring, and the tightening ring is tightly fitted with the outer wall of the sleeve; a water injection hard valve is installed at the lower end of one side of the sleeve, and one end of the water injection hard valve is connected to the sleeve.

[0007] Preferably, the outside of the cylindrical airbag is wrapped with adsorption cotton, and the upper and lower ends of the adsorption cotton are respectively fixed by constriction rings.

[0008] Preferably, a urine tube is provided at the middle position inside the sleeve, the lower end of the urine tube extends to the outside of the sleeve, and the lower end of the urine tube is sealed with the sleeve, the upper end of the urine tube is provided with four urine inlets distributed in an annular shape and at equal intervals, the internal space of the sleeve and the internal space of the urine tube are independent of each other, and a urine outlet is provided at the bottom of the urine tube.

[0009] Preferably, a catheter is installed below the urination port, and a liquid extraction mechanism is installed at one end of the catheter.

[0010] Preferably, the diameter of the spherical airbag in the non-water-injected state is smaller than the outer diameter of the sleeve, and the diameter of the cylindrical airbag in the water-injected state is equal to the outer diameter of the sleeve.

[0011] Preferably, the tightening ring is made of elastic rubber.

[0012] Preferably, the cannula and the urine tube are both made of medical silicone.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a spherical airbag and a cylindrical airbag on the sleeve. The spherical airbag is arranged at the end of the sleeve, and the cylindrical airbag is arranged at the entrance of the sleeve into the bladder. When the sleeve completely enters the patient's bladder, water is injected into the sleeve through the water injection hard valve to gradually expand the spherical airbag and the cylindrical airbag. The expanded spherical airbag is located inside the bladder, which can prevent the sleeve from slipping out from the back of the bladder. The cylindrical airbag is expanded at the entrance of the bladder, and its outer wall can form a close fit with the bladder wall, thereby preventing urine from leaking along the outer wall of the sleeve during use. By adding the spherical airbag and the cylindrical airbag to the sleeve and arranging them in appropriate positions, the new device can form a double protection after water injection and expansion. The expansion of the cylindrical airbag at the bladder entrance ensures that its outer wall fits tightly against the bladder wall, effectively blocking the path where urine may leak along the outer wall of the sleeve, significantly reducing the risk of urine leakage, and improving the patient's comfort and quality of care. The design of the water-filled hard valve makes the expansion process of the airbag controllable and safe, and medical staff can adjust the degree of expansion of the airbag as needed to achieve the best sealing and fixation effect.

[0015] 2. The present invention incorporates a removable absorbent pad on the outer wall of the cylindrical airbag. The pad is inserted through the end of the cannula and moves downward to wrap around the cylindrical airbag. Elastic rubber rings are located at both ends of the cylindrical airbag to secure the pads. In actual use, the pads are inserted into the patient's body along with the cannula until they reach the bladder entrance. When the spherical and cylindrical airbags are not inflated, the pads absorb urine that overflows from the bladder entrance, effectively filling the initial period of urine leakage that can occur with traditional urinary catheterization devices and further reducing the risk of leakage. As the cylindrical airbag inflates, its outer wall forms a tight seal with the bladder wall, and the absorbent pads surrounding it further enhance this sealing effect. The softness and absorbency of the pads allow them to conform to the subtle undulations of the bladder wall, absorbing any small amounts of urine that may leak out, ensuring that urine is discharged smoothly through the catheter, preventing any leakage and significantly reducing the additional cleaning and care required due to urine leakage. This not only reduces the workload of medical staff, but also improves the efficiency and quality of care. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 A partial enlarged view of area A in the middle;

[0019] Figure 4This is a schematic diagram of the connection structure between the adsorption cotton and the columnar airbag of the utility model.

[0020] In the figure: 1. Cannula; 2. Water injection hard valve; 3. Urine inlet; 4. Urine outlet; 5. Catheter; 6. Liquid extraction mechanism; 7. Spherical airbag; 8. Columnar airbag; 9. Constriction ring; 10. Urine tube; 11. Absorbent cotton. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4 The utility model provides an embodiment: a new type of urinary catheterization device, including a sleeve 1; a spherical airbag 7 is provided at the end of the sleeve 1, and the bottom of the spherical airbag 7 is connected to the sleeve 1, a cylindrical airbag 8 is provided below the spherical airbag 7, and the two ports of the cylindrical airbag 8 are respectively connected to the sleeve 1, and the upper and lower ends of the cylindrical airbag 8 are provided with a tightening ring 9, the tightening ring 9 is made of elastic rubber material, and the tightening ring 9 is tightly fitted with the outer wall of the sleeve 1, a water injection hard valve 2 is installed at the lower end of one side of the sleeve 1, and one end of the water injection hard valve 2 is connected to the sleeve 1, and the sleeve 1 and the urine tube 10 are both made of medical silicone.

[0023] By adding a spherical airbag 7 and a cylindrical airbag 8 to the cannula 1 and placing them in appropriate locations, the new device provides dual protection after water injection and expansion. The expansion of the cylindrical airbag 8 at the bladder entrance ensures that its outer wall fits tightly against the bladder wall, effectively blocking the path of urine that could leak along the outer wall of the cannula. This significantly reduces the risk of urine leakage and improves patient comfort and quality of care. The design of the water injection hard valve makes the airbag expansion process controllable and safe, allowing medical staff to adjust the degree of airbag expansion as needed to achieve optimal sealing and fixation.

[0024] See also Figure 4 The outside of the cylindrical airbag 8 is wrapped with absorbent cotton 11, and the upper and lower ends of the absorbent cotton 11 are respectively fixed by the tightening ring 9. The softness and absorbency of the absorbent cotton 11 can fit the slight undulations of the bladder wall and absorb a small amount of urine that may seep out, thereby ensuring that urine can only be discharged smoothly through the catheter, avoiding any leakage, significantly reducing the additional cleaning and care work required due to urine leakage, and easy to disassemble and assemble.

[0025] See also Figure 1 、 Figure 2 and Figure 3A urine tube 10 is provided at the middle position inside the sleeve 1, and the lower end of the urine tube 10 extends to the outside of the sleeve 1, and the lower end of the urine tube 10 is sealed and connected to the sleeve 1. The upper end of the urine tube 10 is provided with four urine inlets 3 distributed in an annular shape and at equal distances. The internal space of the sleeve 1 and the internal space of the urine tube 10 are independent of each other. A urine outlet 4 is provided at the bottom of the urine tube 10, and a catheter 5 is installed below the urine outlet 4. A liquid extraction mechanism 6 is installed at one end of the catheter 5. After the sleeve 1 enters the patient's bladder, as the spherical airbag 7 and the cylindrical airbag 8 expand, the urine outlet 4 is limited inside the bladder. At this time, urine can enter the urine tube 10 through the urine outlet 4, and medical staff can collect the urine discharged from the urine tube 10 by pulling the liquid extraction mechanism 6.

[0026] Furthermore, the diameter of the spherical airbag 7 in the uninjected state is smaller than the outer diameter of the sleeve 1, and the diameter of the cylindrical airbag 8 in the water-injected state is equal to the outer diameter of the sleeve 1. The diameter of the spherical airbag 7 in the uninjected state is smaller than the outer diameter of the sleeve 1. This design makes the entire urinary catheterization device smoother when inserted into the patient's body, reduces the friction and damage to the urethra or bladder caused by the excessive outer diameter of the device, improves the patient's comfort and reduces the risk of complications. The diameter of the cylindrical airbag 8 in the water-injected state is equal to the outer diameter of the sleeve 1. This design ensures that the airbag can fit closely to the bladder wall after expansion, which not only effectively blocks the path of urine leakage along the outer wall of the sleeve, but also enhances the stability of the device in the bladder.

[0027] Working principle: When in use, in the non-water-filled state, the diameter of the spherical airbag 7 is smaller than the outer diameter of the cannula 1, making the entire device smoother when inserted into the patient's urethra, reducing friction and damage to the urethra or bladder. When the airbag is not inflated, the absorbent cotton 11 can fit the bladder wall and absorb a small amount of urine that may leak out, further reducing the risk of urine leakage. Until the cannula 1 and the airbag on it completely enter the bladder, water is injected into the cannula 1 through the water injection hard valve 2. The water enters the spherical airbag 7 and the cylindrical airbag 8, causing them to gradually expand. After the spherical airbag 7 expands, it is located inside the bladder. , preventing the sleeve from slipping out from the bladder and providing stable support. The cylindrical airbag 8 expands at the bladder entrance, and its outer wall forms a tight fit with the bladder wall, effectively blocking the path where urine may leak along the outer wall of the sleeve, significantly reducing the risk of urine leakage. As the cylindrical airbag 8 expands, the adsorbent cotton 11 is further compressed and fixed at the bladder entrance, enhancing the sealing effect. At this time, urine enters the urine tube 10 through the inlet. After the urine is collected in the urine tube 10, it flows out through the urination port 4 and the catheter 5. Medical staff can collect the urine by pulling the liquid extraction mechanism 6.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A novel urinary catheterization device, comprising a cannula (1); characterized in that: A spherical airbag (7) is provided at the end of the sleeve (1), and the bottom of the spherical airbag (7) is connected to the sleeve (1); a columnar airbag (8) is provided below the spherical airbag (7), and the two ports of the columnar airbag (8) are respectively connected to the sleeve (1); the upper and lower ends of the columnar airbag (8) are provided with a constriction ring (9), and the constriction ring (9) is tightly fitted with the outer wall of the sleeve (1); a water injection hard valve (2) is installed at the lower end of one side of the sleeve (1), and one end of the water injection hard valve (2) is connected to the sleeve (1).

2. A novel urinary catheterization device according to claim 1, characterized in that: The outside of the columnar airbag (8) is wrapped with adsorption cotton (11), and the upper and lower ends of the adsorption cotton (11) are respectively sleeved and fixed by the constriction ring (9).

3. A novel urinary catheterization device according to claim 1, characterized in that: A urine tube (10) is provided at a middle position inside the sleeve (1), the lower end of the urine tube (10) extends to the outside of the sleeve (1), and the lower end of the urine tube (10) is sealed and connected to the sleeve (1), the upper end of the urine tube (10) is provided with four urine inlets (3) distributed in an annular shape and at equal intervals, the internal space of the sleeve (1) and the internal space of the urine tube (10) are independent of each other, and a urine outlet (4) is provided at the bottom of the urine tube (10).

4. A novel urinary catheterization device according to claim 3, characterized in that: A catheter (5) is installed below the urination port (4), and a liquid extraction mechanism (6) is installed at one end of the catheter (5).

5. A novel urinary catheterization device according to claim 1, characterized in that: The diameter of the spherical airbag (7) in the non-water-filled state is smaller than the outer diameter of the sleeve (1), and the diameter of the cylindrical airbag (8) in the water-filled state is equal to the outer diameter of the sleeve (1).

6. A novel urinary catheterization device according to claim 1, characterized in that: The tightening ring (9) is made of elastic rubber material.

7. A novel urinary catheterization device according to claim 1, characterized in that: The sleeve (1) and the urine tube (10) are both made of medical silica gel.

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