CN209060313U - A kind of flushable counterflow-preventing three-cavity catheter - Google Patents

Abstract

The utility model provides a three-cavity urinary catheter. The urinary catheter is provided with a drainage cavity, a balloon cavity and a flushing cavity extending along its axial direction and not communicating with each other. The front end of the urinary catheter is provided with a The drainage port communicated with the drainage cavity and the end are provided with a catheter port communicated with the drainage cavity, and the drainage cavity is provided with a first one-way valve; The liquid outlet and the end of the urinary catheter are provided with a liquid inlet communicated with the flushing cavity; a valve is provided in the flushing cavity; the outer peripheral wall of the urinary catheter is provided with an inflation airbag communicated with the airbag cavity, so The inflation airbag is located behind the drainage port and the liquid outlet, and the end of the urinary catheter is also provided with a water inlet that communicates with the airbag cavity. The three-lumen urinary catheter can avoid repeated connection of the irrigation lumen and the irrigation device and reverse flow of urine.

Description

A flushable anti-reflux three-lumen urinary catheter

technical field

The utility model relates to the field of urology, in particular to a flushable and anti-reverse flow three-lumen urinary catheter.

Background technique

The three-chamber silicone catheter currently used in clinic is a rinsable catheter, one cavity is a flushing cavity, the other cavity is a balloon cavity, and the other cavity is a drainage cavity. The irrigation chamber and the irrigator need to be connected each time a bladder irrigation is performed.

In the prior art, the connection operation between the flushing chamber and the flusher is complicated; frequently connecting the flushing chamber and the flusher not only consumes the energy and time of the medical staff, but also easily brings discomfort to the patient.

Moreover, if continuous bladder irrigation is not performed, the irrigation cavity is plugged with a self-made cover, but the self-made cover does not match the opening of the irrigation cavity, which is easy to slip off and cause urine leakage, which is easy to cause infection of the patient.

In addition, the drainage cavity of the three-lumen silicone urinary catheter in the prior art is prone to reverse flow of urine, which may cause infection of the patient.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a three-lumen urinary catheter to avoid the cumbersome operation of connecting the flushing cavity and the flusher, and prevent the backflow of urine.

In order to achieve the above purpose, the present utility model provides a three-lumen urinary catheter. The front end is provided with a drainage port that communicates with the drainage cavity, the end is provided with a urinary catheter port that communicates with the drainage cavity, and the drainage cavity is provided with a first one-way valve; the front end of the catheter is also provided with The liquid outlet communicated with the flushing cavity and the end are provided with a liquid inlet communicated with the flushing cavity; the flushing cavity is provided with a valve; the outer peripheral wall of the urinary catheter is provided with a communication with the airbag cavity The inflatable airbag is located at the rear side of the drainage port and the liquid outlet, and the end of the urinary catheter is also provided with a water inlet communicated with the airbag cavity.

Preferably, the flushing cavity is provided with a second one-way valve, and the second one-way valve is located between the liquid outlet and the valve.

Preferably, the valve is a two-way switch valve.

Preferably, the liquid inlet is a threaded port.

Preferably, the threaded port is matched with a flusher.

Preferably, the threaded opening is matched with a heparin cap.

Preferably, the front end of the urinary catheter is provided with more than two liquid outlets.

Preferably, the front end of the urinary catheter is provided with more than three liquid outlets.

Preferably, the material of the three-lumen urinary catheter is selected from any one of the following: natural rubber; silica gel; polyvinyl chloride.

As mentioned above, the three-lumen urinary catheter of the present invention has the following beneficial effects: during flushing, the valve on the flushing chamber can be opened; when the flushing is stopped, the valve is closed, thereby avoiding the repetition of the flushing chamber and the flushing device. connection; and a one-way valve is arranged in the drainage cavity, so as to avoid the reverse flow of urine.

Description of drawings

FIG. 1 is a schematic structural diagram of a three-lumen urinary catheter provided by the present invention.

Component label description

1 Drainage chamber

11 Drainage port

12 catheters

13 First check valve

2 air pockets

21 Inflating bladder

22 water inlet

3 flush chambers

31 Liquid outlet

32 Liquid inlet

33 Valves

34 Second check valve

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with this technology, and are not used to limit the implementation of the present invention. Therefore, it does not have technical substantive significance. Any modification of structure, change of proportional relationship or adjustment of size should still fall in The technical content disclosed by the present invention can be covered within the scope. At the same time, the terms such as "up", "down", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and clarity, and are not used to limit the implementation of the present invention. The scope of the invention, and the change or adjustment of its relative relationship, without substantial changes in the technical content, shall also be regarded as the scope of the present invention.

The utility model provides a three-cavity urinary catheter, as shown in FIG. 1 , the urinary catheter is provided with a drainage cavity 1 extending along its axial direction, a balloon cavity 2 extending along its axial direction, and a drainage cavity 2 extending along its axial direction. In the extended flushing cavity 3, the drainage cavity 1, the airbag cavity 2 and the flushing cavity 3 are not communicated with each other.

The front end of the catheter is provided with a drainage port 11 that communicates with the drainage cavity 1. The front end of the catheter is usually the end of the catheter inserted into the patient's body such as the bladder, and the end of the catheter is There is a catheter port 12 that communicates with the drainage cavity 1, the end of the catheter is usually the other end of the catheter relative to the front end, and the drainage cavity 1 is provided with a first one-way valve 13, so The first one-way valve 13 is located between the drainage port 11 and the urinary catheter port 12, the first one-way valve 13 can make the fluid flow from the front end of the urinary catheter to the end, and can prevent the urinary catheter from flowing. The fluid in it flows from the end to the front. The drainage port 11 introduces the urine in the bladder into the drainage cavity 1, and is discharged through the catheterization port 12, for example, into a urine bag. The first one-way valve 13 can prevent the backflow of urine, thereby avoiding the infection of the patient caused by backflow of urine.

The front end of the urinary catheter is also provided with a liquid outlet 31 communicating with the flushing cavity 3, and the end of the urinary catheter is also provided with a liquid inlet 32 communicating with the flushing cavity 3; 3. A valve 33 is provided near the liquid inlet 32. The liquid inlet 32 can be connected to an irrigator. During rinsing, the valve 33 is opened, and the washing liquid enters the irrigating cavity 3 , and then the bladder is washed through the liquid outlet 31 . When bladder irrigation is not required, closing the valve 33 can prevent urine from leaking out through the irrigation cavity 3 when the irrigation is stopped.

In one example, the flushing chamber 3 is provided with a second one-way valve 34, the second one-way valve 34 is located between the liquid outlet 31 and the valve 33, and the second one-way valve 34 may be To prevent leakage of urine and reduce urinary tract infection, the second one-way valve 34 can make the fluid flow from the distal end of the urinary catheter to the front end, and can prevent the fluid in the urinary catheter from flowing from the front end to the distal end.

In one example, the valve 33 is embodied as a two-way on-off valve, thereby providing the convenience of bladder irrigation.

In one example, the liquid inlet 32 is a threaded port. Specifically, the threaded port can be matched with the irrigator, thereby facilitating the connection between the flushing chamber 3 and the irrigator; the threaded port can also be matched with a heparin cap. When not connected with the irrigator, a heparin cap can be used Cover flush chamber 3.

In one example, the front end of the urinary catheter is provided with more than two liquid outlets 31, and the liquid outlets 31 can be symmetrically distributed on the peripheral wall of the three-lumen urinary catheter. Therefore, the bladder can be flushed in two symmetrical directions, thereby improving the flushing effect.

In one example, the front end of the urinary catheter is provided with more than three liquid outlets 31, and the liquid outlets 31 surround the peripheral wall of the three-lumen urinary catheter. Therefore, the bladder can be flushed in multiple directions, which improves the flushing effect.

The outer peripheral wall of the catheter is provided with an inflation balloon 21 communicating with the balloon cavity 2, and the end of the catheter is provided with a water inlet 22 communicating with the balloon cavity 2; the inflation balloon 21 is located at the The rear side of the drainage port 11 and the liquid outlet 31 . An appropriate amount of normal saline can be injected from the water inlet 22, and the normal saline enters the inflation air bag 21 along the air bag cavity 2, so that the inflation air bag 21 is inflated and filled.

In the embodiment of the present invention, the three-lumen urinary catheter may specifically be a natural rubber urinary catheter, or a silicone urinary catheter; or a polyvinyl chloride urinary catheter.

The utility model has the following beneficial effects:

1. The operation of bladder flushing is controlled by the valve 33, thereby avoiding the repeated connection between the flushing chamber 3 and the flusher, and preventing the leakage of urine through the flushing chamber 3.

2. A first one-way valve 13 is arranged in the drainage chamber 1, so as to avoid the backflow of urine.

3. A second one-way valve 34 is arranged in the flushing chamber 3, so as to avoid the reverse flow of urine.

To sum up, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (9)

1. a kind of three-cavity catheter, which is characterized in that the catheter is equipped with the drainage lumens axially extending and not connected along its (1), airbag chamber (2) and chamber (3) are rinsed, the front end of the catheter be equipped with the draining hole (11) being connected to the drainage lumens (1), End is provided with the catheterizing port (12) of the drainage lumens (1) connection, is provided with the first check valve (13) in the drainage lumens (1)； The front end of the catheter is additionally provided with the liquid outlet (31) being connected to flushing chamber (3), end is provided with and the flushing chamber (3) inlet (32) being connected to；Valve (33) are provided in the flushing chamber (3)；The periphery wall of the catheter be equipped with The swelling gasbag (21) of airbag chamber (2) connection, the swelling gasbag (21) are located at the draining hole (11) and the liquid out On rear side of mouth (31), the end of the catheter is additionally provided with the water inlet (22) being connected to the airbag chamber (2).

2. three-cavity catheter according to claim 1, which is characterized in that it is unidirectional to be provided with second in the flushing chamber (3) Valve (34), the second one-way valve (34) is between the liquid outlet (31) and the valve (33).

3. three-cavity catheter according to claim 1, which is characterized in that the valve (33) is two way cock valve.

4. three-cavity catheter according to claim 1, which is characterized in that the inlet (32) is threaded mouth.

5. three-cavity catheter according to claim 4, which is characterized in that the threaded mouth is matched with flusher.

6. three-cavity catheter according to claim 4, which is characterized in that the threaded mouth is matched with calparine cap.

7. three-cavity catheter according to claim 1, which is characterized in that the front end of the catheter goes out equipped with two or more Liquid mouth (31).

8. three-cavity catheter according to claim 1, which is characterized in that the front end of the catheter sets that there are three above Liquid outlet (31).

9. three-cavity catheter according to claim 1, which is characterized in that the material of the three-cavity catheter is selected from following It is a kind of:

Natural rubber；

Silica gel；

Polyvinyl chloride.