CN215231457U

CN215231457U - Urine leakage-proof flushing catheter

Info

Publication number: CN215231457U
Application number: CN202121331108.0U
Authority: CN
Inventors: 高秀珍; 张�诚
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-21
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a catheter is washed in leak protection urine, include: the head end of the main pipe body is semi-elliptical, a pressure balloon, a plurality of side holes and a urine leakage prevention balloon are arranged on the pipe wall, the pressure balloon and the urine leakage prevention balloon are both in a calabash shape after water injection, and the side holes are used for urethral catheterization and are arranged between the pressure balloon and the urine leakage prevention balloon; a channel I communicated with the inside of the urine leakage prevention balloon, a channel II communicated with the plurality of side holes and a channel III communicated with the inside of the pressure balloon are arranged in the main pipe body; the tail end of the main pipe body is provided with a pressure balloon water injection end, a leak-proof urinary balloon water injection end, a bladder flushing end and a urination end, a channel IV, a channel V, a channel VI and a channel VII are arranged inside the main pipe body respectively, the channel IV is communicated with the tail end of the channel III, the channel V is communicated with the tail end of the channel I, and the channel VI and the channel VII are converged in one way and are communicated with the tail end of the channel II. The utility model has the double urine leakage prevention function of blocking the urethra and the internal orifice of the urethra, and flushing fluid is not easy to leak when the bladder is flushed.

Description

Urine leakage-proof flushing catheter

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a catheter is washed in leak protection urine.

Background

Catheterization is a conventional operation technique which must be mastered by medical staff, and refers to a process of inserting a catheter into a bladder through an external orifice of a urethra to play a role in draining urine. The common clinical catheters mainly comprise two types of catheters, namely a double-cavity catheter and a three-cavity catheter, wherein the double-cavity catheter comprises a main pipe body, a pressure balloon water injection end and a urination end which are connected to the rear end of the main pipe body, and a urination hole communicated with the urination end and a spherical bladder fixing balloon communicated with the pressure balloon water injection end are arranged on the front section pipe wall of the main pipe body; the three-cavity catheter is based on the double-cavity catheter, and the rear end of the main tube body is added with a bladder flushing end communicated with the urination hole. During clinical application, the urine bag is connected to the urination end, the main tube body is lubricated by liquid paraffin, the head end of the main tube body is inserted into the bladder through the external orifice of the urethra, the bladder fixing balloon is filled by water injected from the water injection end of the pressure balloon, and the main tube body is pulled back to enable the bladder fixing balloon to be close to the internal orifice of the urethra.

When the urinary catheter is in actual use, the urine leakage phenomenon of men often occurs, the record of urine volume is influenced, the workload of medical staff is increased, and the embarrassing psychology of patients is easily caused by urine polluting bed sheets and trousers. Aiming at the problem of urine leakage, the invention with the publication number of CN 209033489U discloses a convenient-to-wash urine leakage prevention catheter, which is characterized in that a truncated cone-shaped urine leakage prevention balloon is arranged on a main pipe body close to the rear end of a bladder fixing balloon; the invention with the publication number of CN 210057103U discloses a leakage-proof catheter, which is characterized in that an elastic valve wrapping a bladder fixing saccule is arranged on a main pipe body, and a conical leakage-proof saccule surrounding the outer wall of the pipe body is formed when the bladder fixing saccule is inflated. The patent mainly adds the leak-proof sacculus, and conical leak-proof sacculus more agrees with the bladder wall around the internal orifice of urethra, and conical sacculus and bladder mucous membrane contact surface are bigger, have certain leak-proof function of urine. However, due to the lack of direct force at the interface, the pressure of the balloon against the bladder is low, and when the leak-proof balloon is activated, urine can still flow to the internal urethral opening through the gap between the balloon and the bladder folds, resulting in urine leakage. In addition, when the bladder fixing balloon is excessively inflated, the head-end ureter can greatly stimulate the bladder wall, and pain of a patient can be easily caused.

The anatomical structures of the male bladder and the urethra are analyzed to cause the phenomenon of urine leakage during the retention of the urinary catheter, and the following points are mainly considered: 1. when the bladder is empty, the volume of the bladder is reduced, the bladder inner wall generates radial bladder folds taking the urethra orifice as the center, at the moment, the bladder fixing saccule is far away from the urethra orifice, and a gap exists between the bladder fixing saccule and the bladder wall, so that urine flows into the urethra orifice through the folds; 2. the bladder fixing balloon is spherical, the bladder wall close to the inner opening of the urethra is funnel-shaped in a hollow state, the contact area between the bladder fixing balloon and the funnel-shaped bladder wall is small, and urine can easily flow into the inner opening of the urethra through a gap between the bladder fixing balloon and the funnel-shaped bladder wall; 3. when the bladder is fixed and the funnel-shaped bladder wall outer opening is close to each other, a larger space is formed between the bladder fixing saccule and the urethra inner opening, and urine in the secondary space can be extruded into the urethra through the urethra inner opening under the compression of the bladder and the bladder fixing saccule; 4. the urethra has three physiological stenosis in urethra internal orifice, throat and urethra external orifice, and the ureter is through three stenosis back, and there is the clearance between other positions of urethra and the ureter is responsible for the body, and under the effect of urethra smooth muscle, this gap is less, but old, stupor, paraplegia, patient such as diabetes, urethra smooth muscle is more lax, and the ureter is responsible for between the body and the urethra gap great, and the urine of urethra internal orifice department can flow through this clearance. From the analysis of the cause of urine leakage, the phenomenon of urine leakage can be prevented from the following aspects: 1. increasing the pressure of the balloon on the bladder mucosa at the urethral orifice; 2. increasing the contact area of the near-urethra internal orifice balloon and the bladder wall; 3. reducing detail between the balloon and the intraurethral space; 4. reducing the gap between the catheter and the urethral mucosa.

SUMMERY OF THE UTILITY MODEL

In accordance with the above-mentioned technical problem, there is provided a urinary catheter for preventing urinary leakage. The utility model discloses mainly utilize calabash form pressure sacculus to extrude the bladder wall after sufficient, its reaction force with calabash form leak protection urine sacculus crowded to the internal orifice of urethra, block up the internal orifice of urethra and the external bladder inner wall of internal orifice of urethra, increase the area of contact of sacculus and bladder wall to reach the effect that the urine was leaked in the prevention, there is not space between leak protection urine sacculus and the internal orifice of urethra, its sacculus II is located the urethra, can prevent the catheter aversion. The utility model discloses a technical means as follows:

a leak resistant urinary irrigation catheter comprising: the end of the main tube body is semi-elliptical, a pressure balloon, a plurality of side holes and a urine leakage prevention balloon are arranged on the tube wall, the pressure balloon and the urine leakage prevention balloon are both in a calabash shape after water injection, the side holes are used for catheterization and are arranged between the pressure balloon and the urine leakage prevention balloon, the pressure balloon plays a role in fixing the urine leakage prevention balloon, and an inner opening of a urethra is positioned in a middle depression of the urine leakage prevention balloon;

a channel I, a channel II and a channel III are arranged in the main pipe body; the head end of the channel I is communicated with the interior of the urine leakage prevention sacculus, the channel II is communicated with the plurality of side holes, and the head end of the channel III is communicated with the interior of the pressure sacculus;

the tail end of being responsible for the body is equipped with pressure sacculus end of watering, leak protection sacculus end of watering, the bladder is washed the end and is held with urinating, the inside of pressure sacculus end of watering is equipped with passageway IV, the inside of leak protection sacculus end of watering is equipped with passageway V, the inside that the bladder was washed the end is equipped with passageway VI, the inside of urinating the end is equipped with passageway VII, passageway IV is linked together with the tail end of passageway III, passageway V is linked together with the tail end of passageway I, passageway VI and passageway VII converge all the way and all be linked together with the tail end of passageway II.

Furthermore, the urine leakage prevention balloon consists of a balloon I and a balloon II which are integrated and communicated with each other in inner cavities, the balloon I is arranged on the side far away from the side hole, the balloon II is arranged on the side close to the side hole, and the head end of the channel I is positioned inside the balloon I; in sacculus II put into the bladder, in the urethra was arranged in to sacculus I, after the water injection, on the bladder mucosa of urethra internal orifice department was hugged closely to sacculus II, the urethra was blockked up to sacculus I, and the mouth is located sacculus I and sacculus between II depressed parts in the urethra, and the prevention urine leaks outward, prevents the catheter aversion simultaneously.

Furthermore, the pressure balloon and the side holes are arranged in the bladder together, the pressure balloon consists of a balloon III and a balloon IV which are integrated and communicated with each other in inner cavities, the balloon III is arranged close to the side hole, the balloon IV is arranged far away from the side hole, and the head end of the channel III is positioned in the balloon III; after water is injected into the saccule III and the saccule IV, the saccule III and the saccule IV are tightly attached to the inner wall of the bladder; the pressure saccule enables the saccule II in the urine leakage prevention saccule to be extruded to the inner orifice of the urethra by the counterforce of extruding the bladder wall at the bottom under the water injection state, and the saccule is tightly attached to and blocks the inner orifice of the urethra.

Further, the diameter of the balloon III after being filled with water is smaller than that of the balloon IV after being filled with water; the diameter of the balloon I after being filled with water is smaller than that of the balloon II after being filled with water.

Further, the maximum capacity of the pressure balloon is 40ml, the maximum diameter of the balloon IV is 3cm, and the maximum diameter of the balloon III is 2 cm; the maximum capacity of the urine leakage prevention balloon is 20ml, the maximum diameter of the balloon II is 2cm, and the maximum diameter of the balloon I is 1 cm.

Further, the distance between the pressure balloon and the urine leakage prevention balloon is 3-5cm, and preferably 4 cm.

Furthermore, the number of the side holes is 2-4, the side holes are distributed on the same side at equal intervals, and the centers of the side holes are located on the same straight line.

Furthermore, the pressure balloon and the urine leakage prevention balloon are made of rubber, silica gel, polyurethane, polypropylene or polytetrafluoroethylene and the like.

Furthermore, the channel I, the channel II, the channel III, the channel IV, the channel V, the channel VI and the channel VII are single channels.

Further, the outer diameter of the main tube is 6-22Fr, in particular 6, 8, 10, 12, 14, 16, 18, 20 or 22Fr, preferably 18 Fr; the length of the primary tube is 30-40cm, preferably 40 cm.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a catheter is washed to leak protection urine, its pressure sacculus is located and is responsible for body front end, and sufficient sacculus is amazing little to the bladder wall.

2. The utility model provides a catheter is washed to leak protection urine, pressure sacculus are calabash form, can obtain with the great area of contact of bladder wall and major axis, required abundant water is minimum, and fixed effect is best.

3. The utility model provides a catheter is washed to leak protection urine, pressure sacculus are calabash form, and sufficient sacculus can extrude the bladder wall, and its reaction force can be crowded the urine of leak protection sacculus to the internal orifice of urethra, can block up the internal orifice of urethra, increases the area of contact of sacculus and bladder wall, reaches the effect of prevention urine leakage.

4. The utility model provides a catheter is washed to leak protection urine, leak protection urine sacculus are calabash form, and the mouth is located the middle depressed part of leak protection urine sacculus in the urethra, and there is not space between leak protection urine sacculus and the mouth in the urethra, sacculus II is located the urethra, can prevent the catheter aversion, also can prevent to leak the urine.

Based on the reason, the utility model discloses can extensively promote in fields such as medical treatment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the utility model in an operating state (the urine leakage prevention balloon is full).

Fig. 3 is a schematic view of the utility model in an operating state (the pressure balloon and the urine leakage prevention balloon are both full).

In the figure: 1. a pressure balloon; 2. a side hole; 3. a primary tube; 4. a urine leakage prevention balloon; 5. a channel I; 6. a water injection end of the urine leakage prevention saccule; 7. a bladder irrigation end; 8. a urination end; 9. a water injection end of the pressure balloon; 10. A channel II; 11. a sacculus I; 12. a balloon II; 13. a channel III; 14. a balloon III; 15. and a balloon IV.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figure, the utility model provides a catheter is washed in leak protection urine, include: the urine leakage prevention device comprises a main pipe body 3, wherein the head end of the main pipe body 3 is semi-elliptical, a pressure balloon 1, a plurality of side holes 2 and a urine leakage prevention balloon 4 are arranged on the pipe wall, the pressure balloon 1 and the urine leakage prevention balloon 4 are both gourd-shaped after water is injected, the side holes 2 are used for guiding urine and are arranged between the pressure balloon 1 and the urine leakage prevention balloon 4, the pressure balloon 1 plays a role in fixing the urine leakage prevention balloon 4, and an inner urethral opening is positioned in a middle depression of the urine leakage prevention balloon 4;

a channel I5, a channel II 10 and a channel III 13 are arranged in the main pipe body 3; the head end of the channel I5 is communicated with the inside of the urine leakage prevention balloon 4, the channel II 10 is communicated with the plurality of side holes 2, and the head end of the channel III 13 is communicated with the inside of the pressure balloon 1;

the tail end of main pipe body 3 is equipped with pressure sacculus end of watering 9, leak protection sacculus end of watering 6, the bladder washes end 7 and urinate end 8, the inside of pressure sacculus end of watering 9 is equipped with passageway IV, the inside of leak protection sacculus end of watering 6 is equipped with passageway V, the inside of bladder end 7 of washing is equipped with passageway VI, the inside of urinate end 8 is equipped with passageway VII, passageway IV is linked together with the tail end of passageway III 13, passageway V is linked together with the tail end of passageway I5, passageway VI and passageway VII converge all the way and all be linked together with the tail end of passageway II 10.

In a preferred embodiment, the urine leakage preventing balloon 4 is composed of a balloon I11 and a balloon II 12 which are integrated and communicated with each other in inner cavities, the balloon I11 is arranged on the side far away from the side hole 2, the balloon II 12 is arranged on the side close to the side hole 2, and the head end of the channel I5 is positioned inside the balloon I11; the sacculus II 12 is put into the bladder, and in the urethra was arranged in to sacculus I11, after the water injection, on the bladder mucosa of the internal orifice of urethra department was hugged closely to sacculus II 12, the urethra was blockked up to sacculus I11, and the internal orifice of urethra is located the depressed part between sacculus I11 and the sacculus II 12, and the prevention urine leaks outward, prevents the catheter aversion simultaneously.

In a preferred embodiment, the pressure balloon 1 and a plurality of side holes 2 are arranged in the bladder, the pressure balloon 1 is composed of a balloon III 14 and a balloon IV 15 which are integrated and communicated with each other in inner cavities, the balloon III 14 is arranged at the side close to the side holes 2, the balloon IV 15 is arranged at the side far away from the side holes 2, and the head end of a channel III 13 is positioned in the balloon III 14; after being injected with water, the sacculus III 14 and the sacculus IV 15 are tightly attached to the inner wall of the bladder; the pressure saccule 1 enables the saccule II 12 in the urine leakage prevention saccule 4 to be extruded to the inner orifice of the urethra by the counterforce of extruding the bladder wall at the bottom under the water injection state, and the saccule II is tightly attached to and blocks the inner orifice of the urethra.

In a preferred embodiment, the diameter of the balloon III 14 after being filled with water is smaller than that of the balloon IV 15 after being filled with water; the diameter of the balloon I11 after being filled with water is smaller than that of the balloon II 12 after being filled with water.

In a preferred embodiment, the maximum capacity of the pressure balloon 1 is 40ml, the maximum diameter of the balloon IV 15 is 3cm, and the maximum diameter of the balloon III 14 is 2 cm; the maximum capacity of the urine leakage prevention balloon 4 is 20ml, the maximum diameter of the balloon II 12 is 2cm, and the maximum diameter of the balloon I11 is 1 cm.

In a preferred embodiment, the distance between the pressure balloon 1 and the urine leakage prevention balloon 4 is 3-5 cm.

In a preferred embodiment, the side holes 2 are provided with 2-4 holes, and are distributed on the same side at equal intervals, and the centers of the side holes 2 are located on the same straight line.

In a preferred embodiment, the pressure balloon 1 and the urine leakage prevention balloon 4 are made of rubber, silicone, polyurethane, polypropylene, polytetrafluoroethylene, or the like.

As a preferred embodiment, the main tube 3 has an outer diameter of 6-22Fr, in particular 6, 8, 10, 12, 14, 16, 18, 20 or 22 Fr; the length of the main pipe body 3 is 30-40 cm.

Example 1

As shown in fig. 1-3, a leak-proof urinary irrigation catheter comprising: the main tube body 3, the head end of the main tube body 3 is semielliptical, the tube wall is provided with a pressure balloon 1, three side holes 2 and a urine leakage prevention balloon 4, the pressure balloon 1 and the urine leakage prevention balloon 4 are both calabash-shaped after water injection, the three side holes 2 are used for urine catheterization and are arranged between the pressure balloon 1 and the urine leakage prevention balloon 4, the pressure balloon 1 plays a role in fixing the urine leakage prevention balloon 4, an internal orifice of a urethra is positioned at a middle sunken part of the urine leakage prevention balloon 4, wherein the three side holes 2 are distributed at the same side at equal intervals, and the centers of the side holes 2 are positioned on the same straight line; a channel I5, a channel II 10 and a channel III 13 are arranged in the main pipe body 3; the head end of the channel I5 is communicated with the inside of the urine leakage prevention balloon 4, the channel II 10 is communicated with the three side holes 2, and the head end of the channel III 13 is communicated with the inside of the pressure balloon 1; the tail end of the main pipe body 3 is provided with a pressure balloon water injection end 9, a leak-proof urinary balloon water injection end 6, a bladder flushing end 7 and a urination end 8, a channel IV is arranged inside the pressure balloon water injection end 9, a channel V is arranged inside the leak-proof urinary balloon water injection end 6, a channel VI is arranged inside the bladder flushing end 7, a channel VII is arranged inside the urination end 8, and the channel IV is communicated with the tail end of the channel III 13 and used for injecting water into the pressure balloon 1; the channel V is communicated with the tail end of the channel I5 and is used for injecting water into the urine leakage prevention sacculus 4; the channel VI and the channel VII are converged into one path and are communicated with the tail end of the channel II 10, then the normal saline is injected into the channel VI at the bladder flushing end 7 and flows into the bladder through the channel II 10 and the three side holes 2 for flushing, the channel VII and the channel II 10 are communicated for urination, and the urine is discharged through the three side holes 2, the channel II 10 and the channel VII in sequence. The channel I5, the channel II 10, the channel III 13, the channel IV, the channel V, the channel VI and the channel VII are single channels.

The urine leakage preventing balloon 4 consists of a balloon I11 and a balloon II 12 which are integrated, and the inner cavities of the balloon I11 and the balloon II 12 are communicated, the balloon I11 and the balloon II 12 are integrated to form a gourd-shaped balloon, the balloon I11 is arranged on the side far away from the side hole 2, the balloon II 12 is arranged on the side close to the side hole 2, and the head end of the channel I5 is positioned inside the balloon I11; the sacculus II 12 is put into the bladder, and the urethra is arranged in to sacculus I11, and after the water injection, on the bladder mucosa of the internal orifice of urethra department was hugged closely to sacculus II 12, the urethra was blockked up to sacculus I11, and the internal orifice of urethra (the junction of bladder and urethra) is located the depressed place between sacculus I11 and sacculus II 12, and the prevention urine leaks outward, prevents the catheter aversion simultaneously.

The pressure balloon 1 and the three side holes 2 are arranged in the bladder together, the pressure balloon 1 is composed of a balloon III 14 and a balloon IV 15 which are integrated and communicated with each other in inner cavities, the balloon III 14 and the balloon IV 15 are integrated to form a gourd-shaped balloon, the balloon III 14 is arranged on the side close to the side holes 2, the balloon IV 15 is arranged on the side far away from the side holes 2, and the head end of a channel III 13 is positioned in the balloon III 14; after being injected with water, the sacculus III 14 and the sacculus IV 15 are tightly attached to the inner wall of the bladder; the pressure saccule 1 enables the saccule II 12 in the urine leakage prevention saccule 4 to be extruded to the inner orifice of the urethra by the counterforce of extruding the bladder wall at the bottom under the water injection state, and the saccule II is tightly attached to and blocks the inner orifice of the urethra. Because the space in the bladder is limited, the less liquid is injected into the pressure balloon 1, the stimulation to a patient is smaller, so that the pressure balloon 1 adopts a gourd-shaped balloon, the less liquid can be injected into the pressure balloon 1, the length is longer, and the fixing effect is better.

The diameter of the balloon III 14 after being filled with water is smaller than that of the balloon IV 15 after being filled with water; the diameter of the balloon I11 after being filled with water is smaller than that of the balloon II 12 after being filled with water. The maximum capacity of the pressure balloon 1 is 40ml, the maximum diameter of the balloon IV 15 is 3cm, and the maximum diameter of the balloon III 14 is 2 cm; the maximum capacity of the urine leakage prevention balloon 4 is 20ml, the maximum diameter of the balloon II 12 is 2cm, and the maximum diameter of the balloon I11 is 1 cm. The distance between the pressure balloon 1 and the urine leakage prevention balloon 4 is 3-5 cm. The pressure balloon 1 and the urine leakage prevention balloon 4 are made of rubber, silica gel, polyurethane, polypropylene, polytetrafluoroethylene or the like.

The outer diameter of the main pipe body 3 is 18 Fr; the length of the main pipe body 3 is 30-40 cm.

The utility model discloses an use: liquid paraffin is wiped on the front section of the main tube body of the catheter, the head end of the main tube body is completely inserted through the external opening of the urethra, 15ml of saline is injected through the water injection end of the urine leakage prevention balloon, the catheter is pulled back to enable the small balloon in the urine leakage prevention balloon to enter the urethra, about 40ml of saline is injected through the water injection end of the pressure balloon until the catheter is inserted to have large resistance, 5ml of saline is continuously injected into the water injection end of the urine leakage prevention balloon, and the small balloon (balloon I) in the urine leakage prevention balloon cannot enter the bladder through the internal opening of the urethra.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A leak resistant urinary irrigation catheter, comprising: the main tube body (3), the head end of the main tube body (3) is semielliptical, a pressure sacculus (1), a plurality of side holes (2) and a urine leakage prevention sacculus (4) are arranged on the tube wall, the pressure sacculus (1) and the urine leakage prevention sacculus (4) are both calabash-shaped after water injection, the side holes (2) are used for urine catheterization and are arranged between the pressure sacculus (1) and the urine leakage prevention sacculus (4), the pressure sacculus (1) plays a role in fixing the urine leakage prevention sacculus (4), and an internal urethral orifice is positioned in a middle depression of the urine leakage prevention sacculus (4);

a channel I (5), a channel II (10) and a channel III (13) are arranged in the main pipe body (3); the head end of the channel I (5) is communicated with the inside of the urine leakage prevention balloon (4), the channel II (10) is communicated with the plurality of side holes (2), and the head end of the channel III (13) is communicated with the inside of the pressure balloon (1);

the tail end of being responsible for body (3) is equipped with pressure sacculus end of watering (9), leak protection sacculus end of watering (6), end (7) and urination end (8) are washed to the bladder, the inside of pressure sacculus end of watering (9) is equipped with passageway IV, the inside of leak protection sacculus end of watering (6) is equipped with passageway V, the inside that end (7) was washed to the bladder is equipped with passageway VI, the inside of urination end (8) is equipped with passageway VII, passageway IV is linked together with the tail end of passageway III (13), passageway V is linked together with the tail end of passageway I (5), passageway VI and passageway VII converge all the way and all the tail end with passageway II (10) are linked together.

2. The urine leakage prevention irrigation urinary catheter according to claim 1, wherein the urine leakage prevention balloon (4) is composed of a balloon I (11) and a balloon II (12) which are integrated and communicated with each other in inner cavities, the balloon I (11) is arranged at the side far away from the side hole (2), the balloon II (12) is arranged at the side close to the side hole (2), and the head end of the channel I (5) is positioned inside the balloon I (11); the sacculus II (12) is put into the bladder, and the urethra is arranged in to sacculus I (11), and after the water injection, on the bladder mucosa of the internal orifice of urethra department was hugged closely to sacculus II (12), the urethra was blockked up in sacculus I (11), and the internal orifice of urethra is located the depressed part between sacculus I (11) and sacculus II (12), and the prevention urine leaks outward, prevents the catheter aversion simultaneously.

3. The urine leakage prevention irrigation urinary catheter according to claim 2, wherein the pressure balloon (1) and the side holes (2) are arranged in the bladder, the pressure balloon (1) is composed of a balloon III (14) and a balloon IV (15) which are integrated and communicated with each other in the inner cavity, the balloon III (14) is arranged at the side close to the side holes (2), the balloon IV (15) is arranged at the side far away from the side holes (2), and the head end of the channel III (13) is positioned in the balloon III (14); after water is injected into the sacculus III (14) and the sacculus IV (15), the sacculus III and the sacculus IV are tightly attached to the inner wall of the bladder; the pressure saccule (1) enables the saccule II (12) in the urine leakage prevention saccule (4) to be extruded to the inner orifice of the urethra by the counterforce of extruding the bladder wall at the bottom under the water injection state, and the saccule II is tightly attached to and blocks the inner orifice of the urethra.

4. The urine leakage prevention irrigation urinary catheter as claimed in claim 3, wherein the balloon III (14) has a smaller diameter after filling with water than the balloon IV (15); the diameter of the balloon I (11) after being filled with water is smaller than that of the balloon II (12) after being filled with water.

5. The urine leakage prevention irrigation urinary catheter according to claim 4, wherein the maximum capacity of the pressure balloon (1) is 40ml, the maximum diameter of the balloon IV (15) is 3cm, and the maximum diameter of the balloon III (14) is 2 cm; the maximum capacity of the urine leakage prevention balloon (4) is 20ml, the maximum diameter of the balloon II (12) is 2cm, and the maximum diameter of the balloon I (11) is 1 cm.

6. The urine leakage prevention irrigation urinary catheter according to claim 5, wherein the distance between the pressure balloon (1) and the urine leakage prevention balloon (4) is 3-5 cm.

7. The urine leakage prevention urinary catheter according to claim 1, wherein the side holes (2) are provided with 2-4 holes, which are distributed on the same side at equal intervals, and the centers of the side holes (2) are located on the same straight line.

8. The urine leakage prevention irrigation urinary catheter according to claim 1, wherein the pressure balloon (1) and the urine leakage prevention balloon (4) are made of rubber, silica gel, polyurethane, polypropylene or polytetrafluoroethylene.

9. The urine leakage prevention irrigation urinary catheter as claimed in claim 1, wherein the channel I (5), the channel II (10), the channel III (13), the channel IV, the channel V, the channel VI and the channel VII are all single channels.

10. The urine leakage prevention irrigation urinary catheter according to claim 1, wherein the outer diameter of the main tube body (3) is 6-22 Fr; the length of the main pipe body (3) is 30-40 cm.