Novel leakage-proof urinary catheterization device

By adopting a three-air bag structure in the catheter device, the urethra is closed and the sway and movement of the catheter is restricted, the problem of urine dripping is solved, and more efficient urine collection and replacement of urine bags is achieved.

CN222899827UActive Publication Date: 2025-05-27THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202421434190.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-05-27
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

When existing catheters are used, urine is prone to dripping through the outer wall of the catheter, causing contamination.

Method used

A new type of leakage-proof catheter is designed, adopting a three-airbag structure: the first airbag fits with the urethra opening, the second airbag comes into contact with the initial end of the urethra, and the third airbag comes into contact with the urethra entrance, expands the airbag by inflating, closes the urethra and limits the shaking and movement of the catheter.

Benefits of technology

Effectively prevent urine dripping, keep urine in the bladder closed, reduce the risk of contamination, and reduce the vacuum period when changing urine bags.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel leakproof urethral catheterization device, and particularly relates to the field of urinary surgery, a second air bag is fixedly connected with the surface of an extension tube, and a first air bag, the second air bag and a third air bag are communicated with one another; one side of the bottom of the third air bag is fixedly connected with an inflation pipe, and the bottom of the inflation pipe is fixedly connected with a second valve. And by opening the second valve, air or water is inflated into the third air bag, the second air bag and the first air bag through the inflation pipe, so that the three air bags expand outwards. The first air bag is attached to the tail end of the urethral orifice after being inflated, so that the urethra is sealed, and urine is prevented from dripping from the urethra; the head end and the tail end of the inflated second air bag make contact with the urethra initial end and the urethra tail end, and therefore the extending pipe is prevented from shaking left and right. The third air bag abuts against the urethral inlet after being inflated, and therefore the extending pipe is prevented from continuing to move upwards. The structure is matched to prevent urine from leaking when the device is used.
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Description

Technical Field

[0001] The utility model relates to the technical field of urology, in particular to a novel urine leakage prevention catheterization device. Background Technique

[0002] A urinary catheter is a tube inserted into the bladder through the urethra for draining urine. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride (PVC). It can be inserted into the bladder through the urethra to drain urine. After the urinary catheter is inserted into the bladder, there is an airbag near the head end of the urinary catheter to fix the urinary catheter in the bladder and prevent it from slipping out easily. And the drainage tube is connected to a urine bag to collect urine. Generally, patients with urinary incontinence, those who need to stay in bed for a long time or are in a forced position, those who cannot or are unwilling to collect urine, those with urinary retention or bladder outlet obstruction, and those who use it during the surgical period of a surgical operation need to insert a urinary catheter to urinate.

[0003] After a patient uses a urinary catheterization device, if they walk or swing their legs, the connection between the urinary catheter and the patient's body will slightly expand, so that the urine in the patient's bladder will drip down along the outer wall of the urinary catheter, easily contaminating the patient's clothes. Therefore, the inventor provides a novel urine leakage prevention catheterization device to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel urine leakage prevention catheterization device to prevent urine leakage when the device is used.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A novel urine leakage prevention catheterization device includes an insertion tube. The top of the insertion tube is fixedly connected with an entry block. The outer side of the end of the entry block is fixedly connected with a first airbag. The first airbag is designed in an arc shape with thin ends and thick middle; the surface of the insertion tube is fixedly connected with a third airbag. The third airbag is designed with a convex lower end and a flat top; there is a second airbag between the first airbag and the third airbag. The second airbag is fixedly connected with the surface of the insertion tube, and the first airbag, the second airbag and the third airbag are connected through the middle; one side of the bottom of the third airbag is fixedly connected with an inflation tube. The bottom of the inflation tube is fixedly connected with a second valve.

[0007] As a further scheme of the utility model: the entry block is hemispherical and has a urinary catheterization hole at the top.

[0008] As a further scheme of the utility model: one side of the insertion tube is fixedly connected with a flushing tube. One side of the flushing tube is fixedly connected with a first valve.

[0009] As a further solution of the present utility model: a urinary catheter hose is fixedly connected to the bottom of the insertion tube, a switching valve is fixedly connected to the bottom of the urinary catheter hose, connecting tubes are fixedly connected to the output ends on both sides of the switching valve, and a urine bag is threadedly connected to the bottom of one of the connecting tubes through a connector.

[0010] As a further solution of the present utility model: a medical adhesive tape is fixedly connected to the outer side of the urinary catheter hose.

[0011] As a further solution of the present utility model: a restraint strap is fixedly connected to the outer side of the urine bag.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] For this new type of anti-leak urinary catheter device, by opening the second valve and filling air or water into the interiors of the third airbag, the second airbag, and the first airbag through the inflation tube, the three airbags expand outwards. After the first airbag is inflated, it fits against the end of the urethral orifice, thereby sealing the urethra to prevent urine from dripping from the urethra; the head and tail ends of the second airbag after inflation contact the initial end and the terminal end of the urethra, thereby preventing the insertion tube from shaking left and right; the third airbag abuts against the urethral inlet after inflation, thereby preventing the insertion tube from moving upwards further. The cooperation of the above structures achieves the prevention of urine leakage during the use of the device.

[0014] In addition, for this new type of anti-leak urinary catheter device, when the right urine bag needs to be replaced, first thread the new urine bag onto the left connecting tube, then adjust the switching valve so that the urine in the urinary catheter hose flows through the switching valve and then into the left connecting tube and then into the new urine bag, and finally disconnect the right urine bag from the right connecting tube, thereby achieving the effect of no replacement vacuum period when replacing the urine bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the overall structure of a new type of anti-leak urinary catheter device;

[0016] Figure 2 It is a three-dimensional structure schematic diagram of the overall structure from another perspective of a new type of anti-leak urinary catheter device;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the insertion tube in a new type of anti-leak urinary catheter device;

[0018] Figure 4 It is a three-dimensional sectional structure schematic diagram of the insertion tube in a new type of anti-leak urinary catheter device;

[0019] In the figure: 10, insertion tube; 11, entry block; 12, flushing tube; 13, first valve; 14, catheter hole; 20, first air bag; 21, second air bag; 22, third air bag; 23, inflation tube; 24, second valve; 30, catheter hose; 31, switching valve; 32, connecting tube; 33, urine bag; 34, restraint belt; 40, medical adhesive tape. DETAILED DESCRIPTION

[0020] like Figure 1 , a novel leakage-proof urinary catheterization device includes an insertion tube 10, the top of which is fixedly connected to an entry block 11, which is hemispherical and has a urinary catheterization hole 14 on the top. When in use, lubricating oil is applied to the surface of the entry block 11, and the hemispherical entry block 11 gradually becomes thicker from top to bottom to facilitate entry into the patient's urethra. At the same time, the surface of the entry block 11 is smooth and not easy to scratch the patient's urethra.

[0021] refer to Figure 3 The left side of the insertion tube 10 is fixedly connected with a flushing tube 12, which gradually tilts upward from left to right. The left side of the flushing tube 12 is fixedly connected with a first valve 13, which is a one-way valve that only allows liquid to be injected from the outside of the flushing tube 12 into the inside of the flushing tube 12. When the inside of the device needs to be cleaned, cleaning liquid can also be injected into the inside of the insertion tube 10 through the flushing tube 12 to clean the insertion tube 10.

[0022] After the insertion tube 10 is inserted into the patient's urethra, since the insertion tube 10 cannot completely fit the patient's urethra, the urine in the bladder will leak out along the surface of the insertion tube 10, so a leakage prevention mechanism is needed.

[0023] refer to Figures 1 - 4 A first airbag 20 is fixedly connected to the outer side of the end of the entry block 11. The first airbag 20 is an arc-shaped design with thin ends and a thick middle. After inflation, it fits with the end of the urethral opening, thereby closing the urethra to prevent urine from dripping from the urethra.

[0024] When the first airbag 20 seals the end of the urethral opening, the first airbag 20 cannot be fixed, so when the patient shakes and the insertion tube 10 deviates upward, the first airbag 20 will be separated from the end of the urethral opening, so the insertion tube 10 needs to be restricted.

[0025] refer to Figure 4 A third airbag 22 is fixedly connected to the surface of the insertion tube 10. The third airbag 22 is designed with a protruding lower end and a flat top. After being inflated or filled with water, the third airbag 22 abuts against the urethra entrance, thereby preventing the insertion tube 10 from continuing to move upward, and at the same time achieving the effect of limiting the insertion length of the insertion tube 10, preventing the insertion tube 10 from extending into the urethra too long.

[0026] Reference Figure 3 、 4 A second airbag 21 is provided between the first airbag 20 and the third airbag 22. The second airbag 21 is fixedly connected to the surface of the insertion tube 10, and the first airbag 20, the second airbag 21, and the third airbag 22 are in communication with each other in the middle. Therefore, by inflating or filling water into only one of the airbags, the three airbags can finally be expanded. The second airbag 21 is designed with slightly thicker upper and lower ends and slightly thinner middle. During use, the two ends of the second airbag 21 contact the initial end and the terminal end of the urethra, thereby preventing the insertion tube 10 from shaking left and right and giving the patient a strong sense of strangeness.

[0027] Reference Figure 3 、 4 A gas filling tube 23 is fixedly connected to the right side of the bottom of the third airbag 22. A second valve 24 is fixedly connected to the bottom of the gas filling tube 23. During use, the second valve 24 is opened, and air or water is filled into the interiors of the third airbag 22, the second airbag 21, and the first airbag 20 through the gas filling tube 23 to expand the three airbags outward.

[0028] Reference Figure 1 、 2 A urine drainage hose 30 is fixedly connected to the bottom of the insertion tube 10. A switching valve 31 is fixedly connected to the bottom of the urine drainage hose 30. Output ends on the left and right sides of the switching valve 31 are fixedly connected to connecting tubes 32. The bottom of the right connecting tube 32 is threadedly connected to a urine bag 33 through a connector.

[0029] Preferably, reference Figure 1 A medical adhesive tape 40 is fixedly connected to the outside of the urine drainage hose 30. During use, the medical adhesive tape 40 is pasted on the inner thigh of the patient, thereby preventing the urine drainage hose 30 from shaking.

[0030] During daily urine bag replacement, there is often a period of vacuum time (that is, the time when the full urine bag is removed and the new urine bag is connected to the pipeline). During the vacuum time, urine still flows out of the patient's bladder, which may cause the urine discharged by the patient to flow out along the pipeline and pollute the environment during this period. Therefore, a mechanism for reducing the vacuum period during urine bag replacement is needed.

[0031] When the device is in use, the urine in the patient's bladder will successively pass through the urine drainage hole 14, the insertion tube 10, the urine drainage hose 30, and the connecting tube 32 and then enter the urine bag 33. When the right urine bag 33 needs to be replaced, first thread-connect the new urine bag 33 with the left connecting tube 32, and then adjust the switching valve 31 so that the urine in the urine drainage hose 30 flows through the switching valve 31 and then flows to the left connecting tube 32 and then enters the new urine bag 33. Finally, disconnect the right urine bag 33 from the connection of the right connecting tube 32, so as to achieve the effect of no replacement vacuum period when replacing the urine bag.

[0032] Preferably, referring to Figure 1 , a restraint strap 34 is fixedly connected to the outside of the urine bag 33, and the patient can fix the urine bag 33 to the inner thigh through the restraint strap 34, so as to fix the urine bag 33.

[0033] The working principle of the present utility model is: when in use, lubricating oil is applied to the surface of the insertion block 11, and the hemispherical insertion block 11 gradually becomes thicker from top to bottom, which is convenient for entering the patient's urethra. At the same time, the surface of the insertion block 11 is smooth and not easy to scratch the patient's urethra. Then open the second valve 24, and fill the inside of the third airbag 22, the second airbag 21 and the first airbag 20 with air or water through the air filling tube 23, so that the three airbags expand outwards. After the first airbag 20 is inflated, it fits with the end of the urethral orifice, so as to seal the urethra and prevent urine from dripping from the urethra; the head and tail ends of the second airbag 21 after inflation contact the initial end and the terminal end of the urethra, so as to prevent the insertion tube 10 from shaking left and right; the third airbag 22 abuts against the urethral orifice after inflation, so as to prevent the insertion tube 10 from moving upwards continuously.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A novel leakage-proof urinary catheterization device, comprising an insertion tube (10), the top of which is fixedly connected with an entry block (11), characterized in that: A first airbag (20) is fixedly connected to the outer side of the end of the entry block (11), and the first airbag (20) is designed to be arc-shaped with thin ends and thick in the middle; a third airbag (22) is fixedly connected to the surface of the insertion tube (10), and the third airbag (22) is designed to be protruding at the lower end and flat at the top; a second airbag (21) is arranged between the first airbag (20) and the third airbag (22), and the second airbag (21) is fixedly connected to the surface of the insertion tube (10), and the first airbag (20), the second airbag (21), and the third airbag (22) are connected in the middle; an inflation tube (23) is fixedly connected to one side of the bottom of the third airbag (22), and a second valve (24) is fixedly connected to the bottom of the inflation tube (23).

2. A novel leak-proof urinary catheterization device according to claim 1, characterized in that: The entry block (11) is hemispherical and has a urinary catheter hole (14) on the top.

3. A novel leak-proof urinary catheterization device according to claim 1, characterized in that: One side of the insertion pipe (10) is fixedly connected to a flushing pipe (12), and one side of the flushing pipe (12) is fixedly connected to a first valve (13).

4. A novel leakage-proof urinary catheterization device according to claim 1, characterized in that: The bottom of the insertion tube (10) is fixedly connected to a urinary catheter hose (30), the bottom of the urinary catheter hose (30) is fixedly connected to a switching valve (31), the output ends on both sides of the switching valve (31) are fixedly connected to connecting tubes (32), and the bottom of one side of the connecting tube (32) is threadedly connected to a urine bag (33) via a connector.

5. A novel leakage-proof urinary catheterization device according to claim 4, characterized in that: A medical adhesive tape (40) is fixedly connected to the outside of the urinary catheter hose (30).

6. A novel leakage-proof urinary catheterization device according to claim 4, characterized in that: A restraining belt (34) is fixedly connected to the outer side of the urine bag (33).