Anti-displacement and anti-leakage flushing catheter

Abstract

The present invention provides an anti-displacement and anti-urine leakage flushing catheter, comprising: a catheter, a balloon part, and a water injection part, a bladder flushing end and a urination end arranged at the tail end of the catheter. The balloon part is composed of a plurality of balloons, which are sequentially arranged on the tube wall of the catheter. The water injection part is composed of a plurality of water injection ends, each of which is connected to a balloon through a channel, and water is injected into the interior of each balloon respectively. The tube wall of the catheter is also provided with a plurality of urinary catheter side holes connected to the bladder flushing end and the urination end. The present invention has the dual functions of preventing urine leakage and displacement by blocking the urethra and the internal opening of the urethra. When the bladder is flushed, the flushing liquid is not easy to leak out.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-displacement and anti-urine leakage flushing catheter. Background Art

[0002] Catheterization is a routine operation technique that medical staff must master. It refers to the process of inserting a urinary catheter into the bladder through the external urethral opening to drain urine. Commonly used urinary catheters in clinical practice mainly include double-lumen urinary catheters and triple-lumen urinary catheters. The double-lumen urinary catheter includes a main body and a fixed balloon water injection end and a urination end connected to the rear end of the main body. The front wall of the main body is provided with a urination hole connected to the urination end, and a spherical bladder fixed balloon connected to the fixed balloon water injection end; the triple-lumen urinary catheter is based on the double-lumen urinary catheter, and a bladder flushing end connected to the urination hole is added to the rear end of the main body. In clinical application, first connect the urine bag to the urination end, lubricate the main body with liquid paraffin, insert the head end of the main body into the bladder through the external urethral opening, and then fill the bladder fixed balloon with water through the fixed balloon water injection end, and pull the main body back to make the bladder fixed balloon close to the internal urethral opening.

[0003] When the above-mentioned catheter is actually used, male urine leakage often occurs, which not only affects the recording of urine volume and increases the workload of medical staff, but also urine contamination of bed sheets and pants makes it easier for patients to feel embarrassed. In response to the problem of urine leakage, the invention of announcement number CN209033489 U discloses a urine leakage-proof catheter that is easy to flush, in which a truncated cone-shaped urine leakage-proof balloon is set on the main body close to the rear end of the bladder fixed balloon; the invention of announcement number CN 210057103 U discloses a urine leakage-proof catheter, in which an elastic valve that wraps the bladder fixed balloon is set on the main body, and a conical urine leakage-proof balloon is formed around the outer wall of the tube body when the bladder fixed balloon is filled. The above patent mainly adds a urine leakage-proof balloon. The conical urine leakage-proof balloon fits better with the bladder wall around the internal opening of the urethra, and the contact surface between the conical balloon and the bladder mucosa is larger, which has a certain urine leakage-proof function. However, due to the lack of direct force on the contact surface, the pressure of the balloon on the bladder is relatively small. When the anti-leakage balloon moves, urine can still flow to the internal urethra through the gap between the balloon and the bladder folds, causing urine leakage. In addition, when the bladder fixation balloon is overfilled, the head end of the catheter will have a greater stimulation on the bladder wall, which is easy to cause pain to the patient.

[0004] The main reasons for urine leakage during catheterization are as follows: 1. When the bladder is full, its inner wall is smooth, and the bladder fixation balloon fits tightly against the internal urethral opening. When the bladder is empty, the bladder volume shrinks, and the inner wall of the bladder produces radial bladder folds centered on the internal urethral opening. At this time, the bladder fixation balloon will move away from the internal urethral opening, and there will be a gap between the bladder fixation balloon and the bladder wall, causing urine to flow into the internal urethral opening through the fold gap; 2. The bladder fixation balloon is spherical, while the bladder wall near the internal urethral opening in the empty state is funnel-shaped. The contact area between the bladder fixation balloon and the funnel-shaped bladder wall is small, and urine can easily pass through the bladder fixation balloon and the funnel-shaped bladder wall. The urine in the secondary space can be squeezed into the urethra through the internal urethral opening; 4. There are three physiological strictures in the urethra, namely, the internal urethral opening, the narrow part and the external urethral opening. After the urethra passes through the three strictures, there is a gap between the other parts of the urethra and the main body of the urethra. Under the action of the urethral smooth muscle, this gap is smaller. However, in the elderly, comatose, paraplegic, diabetic and other patients, the urethral smooth muscle is relatively relaxed, and the gap between the main body of the urethra and the urethra is larger, so the urine at the internal urethral opening can flow out through this gap. Based on the analysis of the causes of urine leakage, urine leakage can be prevented from the following aspects: 1. Increase the pressure of the balloon on the bladder mucosa at the urethral opening; 2. Increase the contact area between the balloon near the internal urethral opening and the bladder wall at that location; 3. Reduce the gap between the balloon and the urethral opening; 4. Reduce the gap between the catheter and the urethral mucosa. Summary of the invention

[0005] According to the above-mentioned existing urinary catheter, due to the lack of direct force on the contact surface, the pressure of the balloon on the bladder is relatively small. When the anti-leakage balloon is active, 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 overfilled, the head end catheter has a greater stimulation to the bladder wall, which is easy to cause pain to the patient. A displacement-proof urine leakage-proof flushing catheter is provided. The present invention mainly utilizes the gourd-shaped pressure balloon to squeeze the bladder wall after filling, and its reaction force squeezes the water drop-shaped anti-leakage urine balloon toward the internal urethral opening, blocking the internal urethral opening and the inner wall of the bladder outside the internal urethral opening, increasing the contact area between the balloon and the bladder wall, thereby achieving the effect of preventing urine leakage. There is no space between the anti-leakage urine balloon and the internal urethral opening, and its balloon II is located in the urethra. At the same time, the urethral balloon is located in the urethra to prevent the displacement of the urinary catheter.

[0006] The technical means adopted by the present invention are as follows:

[0007] A displacement-proof and urine-leakage-proof flushing catheter comprises: a catheter, a balloon portion, and a water injection portion, a bladder flushing end and a urination end arranged at the tail end of the catheter. The balloon portion is composed of a plurality of balloons which are sequentially arranged on the tube wall of the catheter. The water injection portion is composed of a plurality of water injection ends, each of which is connected to a balloon through a channel, and water is injected into the interior of each balloon respectively. The tube wall of the catheter is also provided with a plurality of catheter side holes which are connected to the bladder flushing end and the urination end.

[0008] Further, the balloon portion is composed of three balloons of different shapes, namely, a pressure balloon, a urine leakage prevention balloon and a urethral balloon, and the shapes after water injection are gourd-shaped, water drop-shaped and round respectively. The pressure balloon is arranged at the head end of the catheter, the urine leakage prevention balloon and the urethral balloon are arranged adjacently on the tube wall of the catheter, the urethral balloon is located on the side away from the pressure balloon, and a plurality of urinary catheterization side holes are arranged between the pressure balloon and the urine leakage prevention balloon; the pressure balloon is located in the bladder in the water injection state, the urine leakage prevention balloon is located in the bladder and the urethra in the water injection state, and the urethral balloon is located in the urethra in the water injection state, and the pressure balloon plays a fixing role on the urine leakage prevention balloon;

[0009] The water injection part consists of three water injection ends, namely the pressure balloon pressure injection end, the anti-urine leakage balloon injection end and the urethral balloon injection end. The pressure balloon is connected to the pressure balloon injection end through a third channel arranged in the catheter, the anti-urine leakage balloon is connected to the anti-urine leakage balloon injection end through a second channel arranged in the catheter, and the urethral balloon is connected to the urethral balloon injection end through a first channel arranged in the catheter; the first channel, the second channel and the third channel are all single channels.

[0010] Furthermore, the urine leakage prevention balloon is composed of a first balloon and a second balloon which are integrated and have connected inner cavities. The first balloon is arranged on the side away from the catheter side hole, the second balloon is arranged on the side close to the catheter side hole, and the head end of the second channel is located inside the first balloon; the second balloon is placed in the bladder, and the first balloon is placed in the urethra. After water injection, the second balloon is tightly attached to the bladder mucosa at the internal opening of the urethra, and the first balloon blocks the internal opening of the urethra. The internal opening of the urethra is located between the first balloon and the second balloon, so as to prevent urine leakage and prevent the displacement of the catheter; when the pressure balloon is filled with water, the reaction force of squeezing the bottom bladder wall causes the urine leakage prevention balloon to be squeezed toward the internal opening of the urethra, and the first balloon is tightly attached to and blocks the internal opening of the urethra.

[0011] Furthermore, the pressure balloon and multiple catheter side holes are placed in the bladder. The pressure balloon consists of a third balloon and a fourth balloon that are integrated and have connected inner cavities. The third balloon is arranged on the side close to the catheter side hole, and the fourth balloon is arranged on the side away from the catheter side hole. The head end of the third channel is located inside the third balloon. After the third balloon and the fourth balloon are filled with water, they are both tightly attached to the inner wall of the bladder.

[0012] Further, the second balloon is a circular or elliptical structure with a central angle greater than 90° after being filled with water, and the first balloon is a conical structure after being filled with water, and the tapering direction of the conical structure is toward the urination end (gradually shrinking from left to right); after water injection, the diameter of the connection between the first balloon and the second balloon is the maximum diameter of the first balloon after water injection, and the maximum diameter of the second balloon after water injection is greater than the maximum diameter of the first balloon after water injection;

[0013] The maximum capacity of the urine leakage-proof balloon is 15 ml, and the maximum diameter is 2 cm (the maximum diameter is the maximum diameter of the second balloon after water is injected).

[0014] Further, the diameter of the fourth balloon after being filled with water is greater than the diameter of the third balloon after being filled with water;

[0015] The maximum capacity of the pressure balloon is 40 ml, the maximum diameter of the fourth balloon is 3 cm, and the maximum diameter of the third balloon is 2 cm.

[0016] Furthermore, the fourth channel inside the catheter, the fifth channel and the sixth channel are respectively provided inside the bladder flushing end and the urination end, the fifth channel and the sixth channel are merged into one way and are both connected to the tail end of the fourth channel, and the head end of the fourth channel is connected to multiple urinary catheterization side holes; the fourth channel, the fifth channel and the sixth channel are all single channels.

[0017] Furthermore, the urinary catheter side holes are provided with 2-4 holes, which are evenly spaced and distributed on the same side, and the centers of the urinary catheter side holes are located on the same straight line.

[0018] Furthermore, the materials of the pressure balloon, urine leakage prevention balloon and urethral balloon are rubber, silicone, polyurethane, polypropylene or polytetrafluoroethylene;

[0019] The length between the pressure balloon and the urine leakage prevention balloon is 3-5 cm, preferably 4 cm; the maximum capacity of the urethral balloon is 5 ml, and the maximum diameter is 1 cm.

[0020] Furthermore, the outer diameter of the catheter is 6-22Fr, specifically 6, 8, 10, 12, 14, 16, 18, 20 or 22Fr, preferably 18Fr; the length of the catheter is 30-40cm, preferably 40cm; and the tip of the catheter is semi-elliptical.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. The anti-displacement and anti-urine leakage flushing catheter provided by the present invention has the dual functions of preventing urine leakage and displacement by blocking the urethra and the internal opening of the urethra. When the bladder is flushed, the flushing liquid is not easy to leak out.

[0023] 2. The anti-displacement and anti-urine leakage flushing catheter provided by the present invention has a pressure balloon located at the front end of the main body, and the filled balloon has little stimulation to the bladder wall.

[0024] 3. The anti-displacement and anti-urine leakage flushing catheter provided by the present invention has a gourd-shaped pressure balloon, which can obtain a larger contact area and long diameter with the bladder wall, requires the least amount of filling water, and has the best fixing effect.

[0025] 4. The anti-displacement and anti-urine leakage flushing catheter provided by the present invention has a gourd-shaped pressure balloon. The filled balloon can squeeze the bladder wall, and its reaction force can squeeze the anti-urine leakage balloon toward the inner opening of the urethra, which can block the inner opening of the urethra and increase the contact area between the balloon and the bladder wall, thereby preventing urine leakage.

[0026] 5. The anti-displacement and anti-urine leakage flushing catheter provided by the present invention has a urethral balloon located in the urethra, which can prevent displacement in the catheter and prevent urine leakage.

[0027] In summary, the technical solution of the present invention can solve the problem that the existing urinary catheter has a small pressure on the bladder due to the lack of direct force on the contact surface. When the anti-leakage balloon is active, urine can still flow to the internal urethra through the gap between the balloon and the bladder folds, causing urine leakage. In addition, when the bladder fixing balloon is overfilled, the head end of the urinary catheter will have a greater stimulation on the bladder wall, which is easy to cause pain to the patient.

[0028] Based on the above reasons, the present invention can be widely promoted in the fields of medicine and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a structural schematic diagram of the present invention.

[0031] Figure 2 It is a schematic diagram of the present invention in working state (the anti-urine leakage balloon is filled).

[0032] Figure 3 It is a schematic diagram of the present invention in working state (the urine leakage prevention balloon and the urethral balloon are filled).

[0033] Figure 4 It is a schematic diagram of the present invention in working state (pressure balloon, urine leakage prevention balloon and urethral balloon are filled).

[0034] In the figure: 1. pressure balloon; 2. catheter; 3. catheter side hole; 4. anti-leakage balloon; 5. urethral balloon; 6. first channel; 7. urethral balloon water injection end; 8. bladder flushing end; 9. urination end; 10. pressure balloon water injection end; 11. anti-leakage balloon water injection end; 12. second channel; 13. first balloon; 14. second balloon; 15. third channel; 16. fourth channel; 17. third balloon; 18. fourth balloon. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] As shown in the figure, the present invention provides an anti-displacement and anti-urine leakage flushing catheter, comprising: a catheter 2, a balloon portion, and a water injection portion, a bladder flushing end 8 and a urination end 9 arranged at the tail end of the catheter 2. The balloon portion is composed of a plurality of balloons, which are sequentially arranged on the tube wall of the catheter 2. The water injection portion is composed of a plurality of water injection ends, each of which is connected to a balloon through a channel, and water is injected into the interior of each balloon respectively; the tube wall of the catheter 2 is also provided with a plurality of catheter side holes 3 connected to both the bladder flushing end 8 and the urination end 9.

[0039] As a preferred embodiment, the balloon portion is composed of three balloons of different shapes, namely, a pressure balloon 1, a urine leakage prevention balloon 4 and a urethral balloon 5, and the shapes after water injection are gourd-shaped, water drop-shaped and round, respectively. The pressure balloon 1 is arranged at the head end of the catheter 2, the urine leakage prevention balloon 4 and the urethral balloon 5 are arranged adjacent to each other on the tube wall of the catheter 2, the urethral balloon 5 is located on the side away from the pressure balloon 1, and a plurality of urinary catheterization side holes 3 are arranged between the pressure balloon 1 and the urine leakage prevention balloon 4; the pressure balloon 1 is located in the bladder in the water injection state, the urine leakage prevention balloon 4 is located in the bladder and the urethra in the water injection state, and the urethral balloon 5 is located in the urethra in the water injection state, and the pressure balloon 1 plays a fixing role on the urine leakage prevention balloon 4;

[0040] The water injection part is composed of three water injection ends, namely the pressure balloon pressure injection end 10, the anti-leakage urine balloon water injection end 11 and the urethral balloon water injection end 7. The pressure balloon 1 is connected to the pressure balloon pressure injection end 10 through a third channel 15 arranged in the catheter 2, the anti-leakage urine balloon 4 is connected to the anti-leakage urine balloon water injection end 11 through a second channel 12 arranged in the catheter 2, and the urethral balloon 5 is connected to the urethral balloon water injection end 7 through a first channel 6 arranged in the catheter 2; the first channel 6, the second channel 12 and the third channel 15 are all single channels.

[0041] As a preferred embodiment, the urine leakage prevention balloon 4 is composed of a first balloon 13 and a second balloon 14 which are integrated and have connected inner cavities. The first balloon 13 is arranged on the side away from the catheterization side hole 3, and the second balloon 14 is arranged on the side close to the catheterization side hole 3. The head end of the second channel 12 is located inside the first balloon 13; the second balloon 14 is placed in the bladder, and the first balloon 13 is placed in the urethra. After water injection, the second balloon 14 is tightly attached to the bladder mucosa at the internal opening of the urethra, and the first balloon 13 blocks the internal opening of the urethra. The internal opening of the urethra is located between the first balloon 13 and the second balloon 14 to prevent urine leakage and prevent the displacement of the catheter; when the pressure balloon 1 is in the water-injected state, the reaction force of squeezing the bottom bladder wall causes the urine leakage prevention balloon 4 to be squeezed toward the internal opening of the urethra, and the first balloon 13 is tightly attached to and blocks the internal opening of the urethra.

[0042] As a preferred embodiment, the pressure balloon 1 and multiple catheter side holes 3 are placed in the bladder. The pressure balloon 1 is composed of an integrated third balloon 17 and a fourth balloon 18 with connected inner cavities. The third balloon 17 is arranged on the side close to the catheter side hole 3, and the fourth balloon 18 is arranged on the side away from the catheter side hole 3. The head end of the third channel 15 is located inside the third balloon 17; after the third balloon 17 and the fourth balloon 18 are filled with water, they are both tightly attached to the inner wall of the bladder.

[0043] As a preferred embodiment, the second balloon 14 is a circular or elliptical structure with a central angle greater than 90° after being filled with water, and the first balloon 13 is a conical structure after being filled with water, and the tapering direction of the conical structure is toward the urination end 9 (gradually shrinking from left to right); after water injection, the diameter of the connection between the first balloon 13 and the second balloon 14 is the maximum diameter of the first balloon 13 after water injection, and the maximum diameter of the second balloon 14 after water injection is greater than the maximum diameter of the first balloon 13 after water injection;

[0044] The maximum capacity of the urine leakage-proof balloon 4 is 15 ml, and the maximum diameter is 2 cm (the maximum diameter is the maximum diameter of the second balloon 14 after being filled with water).

[0045] As a preferred embodiment, the diameter of the fourth balloon 18 after being filled with water is greater than the diameter of the third balloon 17 after being filled with water;

[0046] The maximum capacity of the pressure balloon 1 is 40 ml, the maximum diameter of the fourth balloon 18 is 3 cm, and the maximum diameter of the third balloon 17 is 2 cm.

[0047] As a preferred embodiment, the fourth channel 16 inside the catheter 2, the fifth channel and the sixth channel are respectively provided inside the bladder flushing end 8 and the urination end 9, the fifth channel and the sixth channel are converged into one way and are both connected to the tail end of the fourth channel 16, and the head end of the fourth channel 16 is connected to multiple urinary catheterization side holes 3; the fourth channel 16, the fifth channel and the sixth channel are all single channels.

[0048] As a preferred embodiment, the urinary catheter side holes 3 are provided with 2-4 holes, which are evenly spaced and distributed on the same side, and the centers of the urinary catheter side holes 3 are located on the same straight line.

[0049] As a preferred embodiment, the pressure balloon 1, the urine leakage-proof balloon 4 and the urethral balloon 5 are all made of rubber, silicone, polyurethane, polypropylene or polytetrafluoroethylene;

[0050] The length between the pressure balloon 1 and the urine leakage prevention balloon 4 is 3-5 cm; the maximum capacity of the urethral balloon 5 is 5 ml, and the maximum diameter is 1 cm.

[0051] As a preferred embodiment, the outer diameter of the catheter 2 is 6-22 Fr, specifically 6, 8, 10, 12, 14, 16, 18, 20 or 22 Fr; the length of the catheter 2 is 30-40 cm; and the tip of the catheter 2 is semi-elliptical.

[0052] Example 1

[0053] like Figure 1-4As shown, an anti-displacement and anti-urine leakage flushing catheter comprises: a catheter 2, a balloon portion, and a water injection portion, a bladder flushing end 8 and a urination end 9 arranged at the tail end of the catheter 2. The balloon portion is composed of three balloons, which are sequentially arranged on the tube wall of the catheter 2. The water injection portion is composed of three water injection ends, each of which is connected to a balloon through a channel, and water is injected into the interior of each balloon respectively; three urinary catheter side holes 3 connected to the bladder flushing end 8 and the urination end 9 are also provided on the tube wall of the catheter 2. The three urinary catheter side holes 3 are evenly spaced and distributed on the same side, and the centers of each urinary catheter side hole 3 are located on the same straight line.

[0054] In the present embodiment, the balloon portion is composed of three balloons of different shapes, namely a pressure balloon 1, an anti-urine leakage balloon 4 and a urethral balloon 5. The shapes after water injection are gourd-shaped, water-drop-shaped and circular, respectively. The pressure balloon 1 is arranged at the head end of the catheter 2, the anti-urine leakage balloon 4 and the urethral balloon 5 are adjacently arranged on the tube wall of the catheter 2, the urethral balloon 5 is located on the side away from the pressure balloon 1, and three urinary catheterization side holes 3 are arranged between the pressure balloon 1 and the anti-urine leakage balloon 4; the pressure balloon 1 is located in the bladder when water is injected, the anti-urine leakage balloon 4 is located in the bladder and urethra when water is injected, and the urethral balloon 5 is located in the urethra (blocking the urethra) when water is injected, and the pressure balloon 1 fixes the anti-urine leakage balloon 4. The three water injection ends of the water injection part are respectively a pressure balloon pressure injection end 10, a urine leakage prevention balloon injection end 11 and a urethral balloon injection end 7. The pressure balloon 1 is connected to a single channel in the pressure balloon pressure injection end 10 through a third channel 15 provided in the catheter 2, the urine leakage prevention balloon 4 is connected to a single channel in the urine leakage prevention balloon injection end 11 through a second channel 12 provided in the catheter 2, and the urethral balloon 5 is connected to a single channel in the urethral balloon injection end 7 through a first channel 6 provided in the catheter 2. The first channel 6, the second channel 12 and the third channel 15 are all single channels.

[0055] In this embodiment, the urine leakage prevention balloon 4 is composed of a first balloon 13 and a second balloon 14 which are integrated and have connected inner cavities. The first balloon 13 is arranged on the side away from the catheter side hole 3, and the second balloon 14 is arranged on the side close to the catheter side hole 3. The head end of the second channel 12 is located inside the first balloon 13; the second balloon 14 is placed in the bladder, and the first balloon 13 is placed in the urethra. After water injection, the second balloon 14 is tightly attached to the bladder mucosa at the internal opening of the urethra, and the first balloon 13 blocks the internal opening of the urethra. The internal opening of the urethra is located between the first balloon 13 and the second balloon 14 to prevent urine leakage and prevent the displacement of the catheter; when the pressure balloon 1 is in the water-injected state, the reaction force of squeezing the bottom bladder wall causes the urine leakage prevention balloon 4 to be squeezed toward the internal opening of the urethra, and the first balloon 13 is tightly attached to and blocks the internal opening of the urethra (the connection between the bladder and the urethra).

[0056] In this embodiment, the pressure balloon 1 and the three catheter side holes 3 are placed in the bladder (the section of the catheter with the catheter side holes can be entrenched in the bladder). The pressure balloon 1 is composed of an integrated third balloon 17 and a fourth balloon 18 with connected inner cavities. The third balloon 17 is arranged on the side close to the catheter side hole 3, and the fourth balloon 18 is arranged on the side away from the catheter side hole 3. The head end of the third channel 15 is located inside the third balloon 17; after the third balloon 17 and the fourth balloon 18 are filled with water, they are both tightly attached to the inner wall of the bladder.

[0057] In this embodiment, the second balloon 14 has a circular or elliptical structure with a central angle greater than 90° after being filled with water, and the first balloon 13 has a conical structure after being filled with water, and the tapering direction of the conical structure is toward the urination end 9 (gradually shrinking from left to right); after water injection, the diameter of the connection between the first balloon 13 and the second balloon 14 is the maximum diameter of the first balloon 13 after water injection, and the maximum diameter of the second balloon 14 after water injection is greater than the maximum diameter of the first balloon 13 after water injection; the maximum capacity of the anti-urinary leakage balloon 4 is 15 ml, and the maximum diameter is 2 cm (the maximum diameter is the maximum diameter of the second balloon 14 after water injection).

[0058] In this embodiment, the diameter of the fourth balloon 18 after being filled with water is greater than the diameter of the third balloon 17 after being filled with water; the maximum capacity of the pressure balloon 1 is 40 ml, the maximum diameter of the fourth balloon 18 is 3 cm, and the maximum diameter of the third balloon 17 is 2 cm.

[0059] In this embodiment, the fourth channel 16 inside the catheter 2, the fifth channel and the sixth channel are respectively provided inside the bladder flushing end 8 and the urination end 9, the fifth channel and the sixth channel are combined into one channel and are both connected to the tail end of the fourth channel 16, the head end of the fourth channel 16 is connected to the three urinary catheter side holes 3, and then the physiological saline is injected from the fifth channel of the bladder flushing end 8 into the bladder through the fourth channel 16 and the three urinary catheter side holes 3 for flushing, and the sixth channel is connected to the fourth channel 16 for urination, and the urine is discharged through the three urinary catheter side holes 3, the fourth channel 16 and the sixth channel in sequence. The fourth channel 16, the fifth channel and the sixth channel are all single channels.

[0060] In this embodiment, the pressure balloon 1, the urine leakage-proof balloon 4 and the urethral balloon 5 are all made of rubber or silicone; the length between the pressure balloon 1 and the urine leakage-proof balloon 4 is 4 cm; the maximum capacity of the urethral balloon 5 is 5 ml and the maximum diameter is 1 cm.

[0061] In this embodiment, the outer diameter of the catheter 2 is 18 Fr; the length of the catheter 2 is 40 cm; and the tip of the catheter 2 is semi-elliptical.

[0062] The method of the present invention is as follows: the front section of the catheter is wiped with liquid paraffin, the catheter head end is completely inserted through the external urethral opening, 30 ml of saline is injected through the water injection end of the anti-leakage urine balloon, the catheter is pulled back to make the anti-leakage urine balloon close to the internal urethral opening, 5 ml of saline is injected through the water injection end of the urethral balloon to fill the urethral balloon, and about 40 ml of saline is injected through the water injection end of the pressure balloon until there is great resistance to the insertion of the catheter.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A displacement-proof and urine-leakage-proof flushing catheter, characterized in that: include: A catheter (2), a balloon portion, and a water injection portion, a bladder flushing end (8), and a urination end (9) disposed at the rear end of the catheter (2); the balloon portion is composed of a plurality of balloons, which are sequentially disposed on the tube wall of the catheter (2); the water injection portion is composed of a plurality of water injection ends, each of which is connected to a balloon through a channel, and water is injected into the interior of each balloon; and a plurality of urinary catheter side holes (3) which are connected to the bladder flushing end (8) and the urination end (9) are also disposed on the tube wall of the catheter (2); The balloon portion is composed of three balloons of different shapes, namely a pressure balloon (1), a urine leakage prevention balloon (4) and a urethral balloon (5). The shapes of the balloons after water injection are respectively gourd-shaped, water-drop-shaped and round. The pressure balloon (1) is arranged at the head end of the catheter (2), the urine leakage prevention balloon (4) and the urethral balloon (5) are arranged adjacent to each other on the tube wall of the catheter (2), the urethral balloon (5) is located on a side away from the pressure balloon (1), and a plurality of urinary catheter side holes (3) are arranged between the pressure balloon (1) and the urine leakage prevention balloon (4). The pressure balloon (1) is located in the bladder when water is injected, the urine leakage prevention balloon (4) is located in the bladder and the urethra when water is injected, and the urethral balloon (5) is located in the urethra when water is injected. The pressure balloon (1) has a fixing effect on the urine leakage prevention balloon (4). The water injection part is composed of three water injection ends, namely a pressure balloon water injection end (10), a urine leakage prevention balloon water injection end (11) and a urethral balloon water injection end (7); the pressure balloon (1) is connected to the pressure balloon water injection end (10) via a third channel (15) arranged in the catheter (2); the urine leakage prevention balloon (4) is connected to the urine leakage prevention balloon water injection end (11) via a second channel (12) arranged in the catheter (2); and the urethral balloon (5) is connected to the urethral balloon water injection end (7) via a first channel (6) arranged in the catheter (2); the first channel (6), the second channel (12) and the third channel (15) are all single channels; The catheter (2) is provided with a fourth channel (16) inside, and the bladder flushing end (8) and the urination end (9) are provided with a fifth channel and a sixth channel inside respectively, the fifth channel and the sixth channel are combined into one channel and are both connected to the tail end of the fourth channel (16), and the head end of the fourth channel (16) is connected to a plurality of urinary catheter side holes (3); the fourth channel (16), the fifth channel and the sixth channel are all single channels; The urine leakage prevention balloon (4) is composed of a first balloon (13) and a second balloon (14) which are integral and have interconnected inner cavities. The first balloon (13) is arranged on a side away from the urinary catheter side hole (3), the second balloon (14) is arranged on a side close to the urinary catheter side hole (3), and the head end of the second channel (12) is located inside the first balloon (13). The second balloon (14) is placed in the bladder, and the first balloon (13) is placed in the urethra. After water is injected, the second balloon (14) is closely attached to the bladder mucosa at the inner opening of the urethra, and the first balloon (13) blocks the inner opening of the urethra. The inner opening of the urethra is located between the first balloon (13) and the second balloon (14), thereby preventing urine leakage and preventing the displacement of the urinary catheter. When the pressure balloon (1) is in a water-injected state, the reaction force of squeezing the bottom bladder wall causes the urine leakage prevention balloon (4) to be squeezed toward the inner opening of the urethra, and the first balloon (13) is closely attached to and blocks the inner opening of the urethra.

2. The anti-displacement and anti-urine leakage flushing catheter according to claim 1, characterized in that: The pressure balloon (1) and the plurality of urinary catheter side holes (3) are both placed in the bladder. The pressure balloon (1) is composed of a third balloon (17) and a fourth balloon (18) which are integral and have interconnected inner cavities. The third balloon (17) is arranged on a side close to the urinary catheter side holes (3), and the fourth balloon (18) is arranged on a side away from the urinary catheter side holes (3). The head end of the third channel (15) is located inside the third balloon (17). After being filled with water, the third balloon (17) and the fourth balloon (18) are both tightly attached to the inner wall of the bladder.

3. The anti-displacement and anti-urine leakage flushing catheter according to claim 1, characterized in that: After being filled with water, the second balloon (14) has a circular or elliptical structure with a central angle greater than 90°, and after being filled with water, the first balloon (13) has a conical structure, with the conical structure gradually shrinking toward the urination end (9); after being filled with water, the diameter of the connection between the first balloon (13) and the second balloon (14) is the maximum diameter of the first balloon (13) after being filled with water, and the maximum diameter of the second balloon (14) after being filled with water is greater than the maximum diameter of the first balloon (13) after being filled with water; The maximum capacity of the urine leakage-proof balloon (4) is 15 ml, and the maximum diameter is 2 cm.

4. The anti-displacement and anti-urine leakage flushing catheter according to claim 2, characterized in that: The diameter of the fourth balloon (18) after being filled with water is greater than the diameter of the third balloon (17) after being filled with water; The maximum capacity of the pressure balloon (1) is 40 ml, the maximum diameter of the fourth balloon (18) is 3 cm, and the maximum diameter of the third balloon (17) is 2 cm.

5. The anti-displacement and anti-urine leakage flushing catheter according to claim 1, characterized in that: The urinary catheter side holes (3) are provided with 2 to 4 holes, which are evenly spaced and distributed on the same side, and the centers of the urinary catheter side holes (3) are located on the same straight line.

6. The anti-displacement and anti-urine leakage flushing catheter according to claim 1, characterized in that: The pressure balloon (1), the urine leakage prevention balloon (4) and the urethral balloon (5) are all made of rubber, silicone, polyurethane, polypropylene or polytetrafluoroethylene; The length between the pressure balloon (1) and the urine leakage prevention balloon (4) is 3-5 cm; the maximum capacity of the urethral balloon (5) is 5 ml, and the maximum diameter is 1 cm.

7. The anti-displacement and anti-urine leakage flushing catheter according to claim 1, characterized in that: The outer diameter of the catheter (2) is 6-22 Fr; the length of the catheter (2) is 30-40 cm; and the head end of the catheter (2) is semi-elliptical.

Images