CN215426864U

CN215426864U - Urethral catheter capable of urethral dilatation

Info

Publication number: CN215426864U
Application number: CN202120821510.0U
Authority: CN
Inventors: 胡俊杰
Original assignee: Lanxi People's Hospital
Current assignee: Lanxi People's Hospital
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-07
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a urethral catheter capable of urethral dilatation, which comprises a urethral catheter, wherein the front end of the urethral catheter is of a thin and sharp structure, the side wall of the front end of the urethral catheter is provided with a side hole communicated with a hollow channel of the urethral catheter, so that the urethral catheter is effectively inserted along the urethra, the outer side of the front end of the urethral catheter is coated with an air bag, the rear end of the urethral catheter is provided with a connector communicated with the hollow channel of the urethral catheter, the side surface of the rear end of the urethral catheter is provided with an injection head, and a channel positioned in the urethral catheter is connected between the injection head and the air bag; the outer surface of the catheter is provided with a graduated scale, and the visual insertion depth of the catheter is realized through the graduated scale; a replaceable wiping pad is sleeved on the catheter.

Description

Urethral catheter capable of urethral dilatation

Technical Field

The utility model relates to the technical field of medical urological instruments, in particular to a catheter capable of urethral dilatation.

Background

Urethral stricture is a common disease in urology surgery and is mostly seen in men. Urethral stricture is often caused by trauma such as pelvic fracture or straddling injury causing urethral damage, urethral infection, improper endoscopic procedures or post-prostatectomy. Patients with urethral stricture have the potential to urinate, and many patients are often hospitalized for emergency treatment with acute urinary retention. The patients usually have the emergency treatment that the common indwelling catheter fails to discharge urine, and the urethral stricture is found, so the patients can only expand the urethra, and the urethral probe can always smoothly enter the bladder after gradual urethral expansion, but the urethral probe is withdrawn to keep the indwelling catheter often fails. Thus, there continues to be provided a catheter that can perform urethral dilation.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to provide a urinary catheter for urethral dilation.

In order to solve the technical problems, the utility model provides a catheter capable of urethral dilatation, which comprises a catheter, wherein the front end of the catheter is of a thin and sharp structure, the side wall of the front end of the catheter is provided with a side hole communicated with a hollow channel of the catheter, so that the catheter can be effectively inserted along the urethra, the outer side of the front end of the catheter is coated with an air bag, the rear end of the catheter is provided with a connector communicated with the hollow channel of the catheter, the side surface of the rear end of the catheter is provided with an injection head, and a channel positioned in the catheter is connected between the injection head and the air bag;

the outer surface of the catheter is provided with a graduated scale, and the visual insertion depth of the catheter is realized through the graduated scale;

a replaceable wiping pad is sleeved on the catheter.

Preferably, the side surface of the connector is connected with an end cover for plugging the connector through a connecting belt.

Preferably, the injection head is of a columnar structure, a connecting hole is formed at the connecting position of the catheter and the injection head, the connecting hole is communicated with the channel, a thread is arranged in the connecting hole, and a thread section in threaded connection with the connecting hole is arranged on the outer wall of the injection head, so that the injection head can be detached.

Preferably, the injection head is internally provided with a tube structure, wherein the injection head is internally provided with a fine hole section and a coarse hole section which is positioned at the lower end of the fine hole section and communicated with the fine hole section, an inclined shoulder part is formed at the joint of the coarse hole section and the fine hole section, the inclined shoulder part and the coarse hole section form an included angle of 150-160 degrees, the coarse hole section is internally provided with a sealing ball which is used for plugging the inclined shoulder part, the lower end of the sealing ball is fixedly connected with a spring, and the other end of the spring is fixedly connected with the inner wall of the coarse hole section, so that the injection head can control water through a one-way valve.

Preferably, the front end part of the catheter is shield-treated.

Preferably, the catheter further comprises a sleeve for sleeving the end part of the catheter, and the sleeve is wrapped on the side hole.

Compared with the prior art, the urethral catheter has stronger strength, is convenient for smoothly entering the bladder after gradual urethral expansion, and is more convenient to exit. The urethra can be effectively expanded without hurting the patient by injecting water into the air bag, and the water in the air bag can be discharged and can be conveniently pulled out.

Drawings

Fig. 1 is a schematic overall structure of a urinary catheter according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a urinary catheter according to an embodiment of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a view of a catheter according to an embodiment of the present invention in a situation where the catheter is connected to a syringe and a urine bag;

in the drawings:

1. a urinary catheter; 2. an air bag; 3. a side hole; 4. an injection head; 5. a connector; 6. an end cap; 7. a hollow channel; 8. a channel; 9. an injector; 10. a urine receiving bag; 11. a wiping pad; 12. a fine pore section; 13. a sealing ball; 14. a spring; 15. a coarse pore section; 16. pipe sleeve; 17. connecting holes; 18. a graduated scale.

Detailed Description

In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-3, a urinary catheter capable of urethral dilatation comprises a urinary catheter 1, wherein the front end of the urinary catheter 1 is of a thin and pointed structure, a side hole 3 communicated with a hollow channel 7 of the urinary catheter 1 is formed in the side wall of the front end of the urinary catheter 1, so that the urinary catheter 1 can be effectively inserted along the urethra, an air bag 2 is coated outside the front end of the urinary catheter 1, a connector 5 communicated with the hollow channel 7 of the urinary catheter 1 is arranged at the rear end of the urinary catheter 1, an injection head 4 is arranged on the side surface of the rear end of the urinary catheter 1, and a channel 8 positioned inside the urinary catheter 1 is connected between the injection head 4 and the air bag 2;

a graduated scale 18 is arranged on the outer surface of the catheter 1, and the depth of the catheter 1 inserted into the catheter is visualized through the graduated scale 18;

a detachable wiping pad 11 is sleeved on the catheter 1.

Preferably, an end cover 6 for plugging the connecting head 5 is connected to the side surface of the connecting head 5 through a connecting belt.

Preferably, the injection head 4 is of a columnar structure, a connecting hole 17 is formed at the joint of the catheter 1 and the injection head 4, the connecting hole 17 is communicated with the channel 8, a thread is arranged in the connecting hole 17, and a thread section in threaded connection with the connecting hole is arranged on the outer wall of the injection head 4, so that the injection head 4 can be detached.

Preferably, the injection head 4 is internally provided with a tube structure, wherein the injection head 4 is internally provided with a fine hole section 12 and a coarse hole section 15 which is positioned at the lower end of the fine hole section 12 and communicated with the fine hole section, an inclined shoulder part is formed at the joint of the coarse hole section 15 and the fine hole section 12, the inclined shoulder part and the coarse hole section 15 form an included angle of 150-160 degrees, the coarse hole section 15 is internally provided with a sealing ball 13, the sealing ball 13 is used for plugging the inclined shoulder part, the lower end of the sealing ball 13 is fixedly connected with a spring 14, and the other end of the spring 14 is fixedly connected with the inner wall of the coarse hole section 15, so that the injection head 4 performs one-way valve water control.

Preferably, the front end of the catheter 1 is sharpened.

The catheter also comprises a sleeve 16 for sleeving the end part of the catheter, and the sleeve 16 is wrapped on the side hole 3.

The working principle is as follows: as shown in figure 4, when in use, the end cap 6 of the connector 5 is opened and connected to the urine receiving bag 10, the injector 9 filled with water is connected to the injection head 4, the urine is gradually expanded in the urethra, then the water is injected into the air bag 2 through the injection head 4 and the channel 8 through the injector 9 in the expansion process, when the injector 9 flushes water into the channel 8 in the injection process, the whole channel of the injection head 4 is opened and water enters due to the fact that the water pressure sealing ball 13 is far away from the oblique shoulder, and after the injection is finished, the sealing ball 13 is pushed upwards to seal the channel of the injection head 4 due to the spring 14, and the expansion of the air bag is kept. When the water bag is pulled out or moved to a lower stage, the water in the air bag 2 is pumped out, and the air bag 2 contracts, so that the air bag can continue to move.

Upon reaching the bladder, urine drains through the side hole 3 into the hollow passage 7 and ultimately into the urine receiving bag 10.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is defined by the appended claims, and several modifications and amendments made by those skilled in the art without departing from the spirit and scope of the present invention should be construed as the scope of the present invention.

Claims

1. The urethral catheter capable of urethral dilatation is characterized by comprising a urethral catheter (1), wherein the front end of the urethral catheter (1) is of a thin and sharp structure, a side hole (3) communicated with a hollow channel (7) of the urethral catheter (1) is formed in the side wall of the front end of the urethral catheter (1), so that the urethral catheter (1) is effectively inserted along the urethra, an air bag (2) is coated outside the front end of the urethral catheter (1), a connector (5) communicated with the hollow channel (7) of the urethral catheter (1) is arranged at the rear end of the urethral catheter (1), an injection head (4) is arranged on the side wall of the rear end of the urethral catheter (1), and a channel (8) positioned inside the urethral catheter (1) is connected between the injection head (4) and the air bag (2);

a graduated scale (18) is arranged on the outer surface of the catheter (1), and the depth of the catheter (1) is visualized through the graduated scale (18);

a replaceable wiping pad (11) is sleeved on the catheter (1).

2. A catheter for urethral dilation according to claim 1, characterised in that the side of the connector (5) is connected by a connecting band to an end cap (6) for plugging the connector (5).

3. A catheter for urethral dilation according to claim 1, wherein the injection head (4) is of a cylindrical structure, a connection hole (17) is formed at the connection between the catheter (1) and the injection head (4), the connection hole (17) is communicated with the channel (8), a thread is arranged in the connection hole (17), and the outer wall of the injection head (4) is provided with a thread section in threaded connection with the connection hole, so that the injection head (4) can be detached.

4. A urethral catheter capable of urethral dilation according to claim 1, wherein the injector head (4) is provided with a tubular structure, wherein the injector head (4) is provided with a fine hole section (12) and a coarse hole section (15) which is arranged at the lower end of the fine hole section (12) and is communicated with the fine hole section, a slant shoulder part is formed at the joint of the coarse hole section (15) and the fine hole section (12), the slant shoulder part forms an included angle of 150 ° to 160 ° with the coarse hole section (15), a sealing ball (13) is arranged in the coarse hole section (15), the sealing ball (13) is used for sealing the slant shoulder part, the lower end of the sealing ball (13) is fixedly connected with a spring (14), and the other end of the spring (14) is fixedly connected with the inner wall of the coarse hole section (15), so that the injector head (4) is provided with a one-way valve for controlling water.

5. A urethral catheter capable of urethral dilation according to claim 1, characterized in that the tip end of the catheter (1) is blunt-ended.

6. A urethral catheter for urethral dilation according to claim 1, characterised in that it further comprises a sleeve (16) for engaging the end of the catheter, the sleeve (16) being fitted over the side hole (3).