CN210933368U - Catheter for flushing blood clots in bladder - Google Patents

Abstract

The utility model discloses a catheter for flushing blood clots in the bladder, comprising a catheter body, a first side hole and a second side hole are symmetrically opened at the tip of the catheter body, and the middle part is located in the first side hole and/or Or an air bag is arranged below the second side hole, and a water outlet and an air bag water injection port are arranged at the rear end; The opening of the water injection port of the air bag is provided with a rubber stopper; the side hole of the tip of the catheter provided by the utility model is longer than the side hole of the general catheter, and it is easier to flush out larger blood clots; the part of the inner wall that is not surrounded by the air bag is When water is injected into the air bag, the groove of the pipe body provided on the upper part can deflect the tip of the catheter to the opposite side of the air bag, and the deflection angle can be adjusted by the amount of water injected into the air bag, which is convenient for the side hole of the catheter tip. It touches the blood clots in other distant positions, so that it has a wider range of blood clots and is flexible and convenient to use.

Description

A urinary catheter for flushing blood clots in the bladder

technical field

The utility model relates to the technical field of medical devices, in particular to a urinary catheter for flushing blood clots in the bladder.

Background technique

A sterile urinary catheter is a tubular device made of natural rubber, silicone rubber or polyvinyl chloride that is inserted into the bladder through the urethra for the purpose of draining urine or flushing the bladder. According to the different structures, it can be divided into: single-lumen catheter, double-lumen catheter, triple-lumen catheter, etc., and different structures of catheters have different uses. Clinically, indications for indwelling catheters include: 1. Patients with urinary retention or bladder outlet obstruction; 2. Urinary incontinence; 3. Accurate monitoring of urine output; 4. Patients unable or unwilling to collect urine; Patients who are bedridden or forced into position; 6. Perioperative use during surgery.

For some patients with urinary tract bleeding diseases, due to the large amount of bleeding, large blood clots can form in the bladder in a short time, blocking the catheter. At this time, only a three-lumen catheter can be used for continuous bladder irrigation, or a syringe can be used to expel the blood clot by pressure suction from the water outlet of the catheter. Due to the small side hole at the top of the catheter, the long axis of the side hole of the traditional catheter is about 5mm. This method is only effective for small blood clots. For larger blood clots, the blood clots can only be removed under direct vision through a cystoscope in the operating room. , and even open surgery to open the bladder to remove the blood clot.

Chinese patent document CN203154563U, patent name: bladder blood clot bedside cleaning catheter, application date: 2013.08.28. Disclosed is a bladder blood clot bedside cleaning catheter, which includes a water inlet pipe and a flushing pipe. The water inlet pipe includes a wedge-shaped plug, a water inlet hose and a water inlet switch attached to the water inlet hose, and the wedge-shaped plug is connected to the water inlet soft plug. The end of the pipe; the flushing pipeline includes a cleaning channel, a hard conduit casing disposed outside the cleaning channel, and a flushing channel passing through the hard conduit casing, the flushing channel is separated from the cleaning channel, and the flushing channel is separated from the The water inlet hose is connected, the rigid catheter shell has a side hole at the top, the cleaning channel is communicated with the bladder through the side hole, and the bottom port of the cleaning channel is a trumpet-shaped operation port. The unique rigid elbow catheter can be easily inserted into the male urethra, which has better passage than the flexible urinary catheter; the thick inner diameter of the catheter provides a good space for a syringe or a negative pressure aspirator to aspirate the blood clots in the bladder. The side hole of the catheter in this scheme is similar in size to the side hole of the traditional urinary catheter, and it is difficult to flush out large blood clots.

In conclusion, there is an urgent need for a urinary catheter capable of flushing out large blood clots in the bladder and with a controllable tip bending angle.

Utility model content

The technical problem to be solved by the utility model is to provide a urinary catheter capable of flushing out large blood clots in the bladder and with a controllable tip bending angle.

In order to solve the above-mentioned technical problems, the present utility model is realized by the following technical solutions: a urinary catheter for flushing blood clots in the bladder, comprising a urinary catheter body, the tip of the urinary catheter body is symmetrically provided with a first side The hole and the second side hole, the middle part is located below the first side hole and/or the second side hole is provided with an airbag, and the rear end is provided with a drainage port and a waterbag water port; the airbag surrounds half of the catheter body , the inner wall of the part of the catheter body that is not surrounded by the air bag is provided with a pipe body groove, the drain port is concentric with the catheter body, and the air bag water injection port is located on one side of the drain port A rubber stopper is arranged at the opening of the water injection port of the air bag; a drainage cavity is opened in the inner center of the urinary catheter body along the axis, and a water injection cavity is opened on one side of the drainage cavity.

Further, the top of the drainage cavity is opened at the first side hole and the second side hole, and the tail is opened at the drain port.

Further, the top of the water injection cavity is communicated with the airbag, and the tail is detachably connected with a rubber plug.

Further, the total length of the catheter body is 410-420 mm, and the tip of the catheter body can be inclined by 0-90° to the side away from the balloon.

Further, the urinary catheter body is an integral injection molding structure.

Further, the upper and lower diameters of the airbag are 22 mm.

Further, the first side hole and the second side hole are elliptical structures with a long axis length of 15 mm.

Further, the distance between the top ends of the first side hole and the second side hole is 12 mm from the top end of the urinary catheter body.

Further, the catheter body is made of one or more materials selected from natural rubber, silicone rubber or polyvinyl chloride.

Compared with the prior art, the benefits of the present utility model are:

The side hole at the tip of the urinary catheter provided by the utility model is longer than the side hole of the general urinary catheter, and it is easier to flush out larger blood clots; the airbag only surrounds half of the catheter body, and is not surrounded by the airbag There is a groove on the inner wall of the tube, so that when water is injected into the balloon, the tip of the catheter can be deflected to the opposite side of the balloon, and the deflection angle can be adjusted by the amount of water injected into the balloon, which is convenient for the tip of the catheter. The side hole of the urethra contacts the blood clots at other distant positions, so that the scope of the blood clot is wider. Under the monitoring of abdominal B-ultrasound, the catheter body can be rotated and the water injection volume in the balloon can be adjusted to make the catheter two. The side holes fully contact the blood clots in different positions, so that as many blood clots as possible are drawn out of the bladder, which is flexible and convenient to use.

Compared with the three-lumen catheter, the diameter of the drainage cavity is larger, which is more convenient for the drainage of urine in the bladder and flushing out larger blood clots.

The drainage cavity opened in the catheter, the top is opened at the two side holes on the top of the catheter, and the tail is opened at the drainage port. When the catheter body is conducting urine, the drainage port is connected to the medical drainage bag. , so that the drainage and collection of urine can be carried out.

The rubber stopper set at the opening of the air bag water injection port can prevent the water injected into the air bag from flowing out, and the inflated air bag after water injection can fix the tip of the catheter in the patient's bladder to prevent the catheter from coming out.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of the catheter for flushing bladder blood clots according to the present utility model;

Fig. 2 is the full sectional view in Fig. 1;

Fig. 3 is the sectional schematic diagram of A-A in Fig. 1;

1. Catheter body; 2. The first side hole; 3. The second side hole; ; 10. The groove of the pipe body.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, rear... are only used to explain the relative positional relationship between the various components in a specific posture as shown in the accompanying drawings , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are only used for description purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, "fixed" can be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection, an electrical connection, a physical connection or a wireless communication connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction between the two elements. , unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the technical solutions The combination does not exist and is not within the protection scope required by the present invention.

Example 1

As shown in FIG. 1-FIG. 3, a urinary catheter for flushing blood clots in the bladder includes a urinary catheter body 1, and a first side hole 2 and a second side hole 2 are symmetrically opened at the tip of the urinary catheter body 1 The side hole 3, the middle part is located below the first side hole 2 and/or the second side hole 3 is provided with an air bag 4, the tail end is provided with a drain port 5 and an air bag water injection port 6, and the tail end of the drain port 5 can be connected to a syringe pump. The blood clot in the bladder can be sucked, and a medical drainage bag can also be connected to conduct the drainage and collection of urine; after the catheter is inserted into the bladder and filled with water, the balloon 4 expands and becomes larger, thereby leaving the catheter in the bladder, And not easy to come out.

The bladder 4 surrounds one-half of the catheter body 1, and a pipe groove 10 is opened on the inner wall of the part of the catheter body 1 that is not surrounded by the bladder 4, so that when water is injected into the bladder 4, the catheter The tip can be deflected to the opposite side of the balloon, and the deflection angle can be adjusted by the amount of water injected into the balloon, so that the side hole of the catheter tip can easily contact the blood clots at other distant positions, so that the scope of the blood clot is larger. , or under the monitoring of abdominal B-ultrasound, by rotating the catheter body 1 and adjusting the water injection volume in the balloon 4, the first side hole 2 and the second side hole 3 of the catheter can fully contact the blood clots in different positions, thereby As many clots as possible are drawn out of the bladder.

The water outlet 5 and the catheter body 1 are designed concentrically and coaxially, and the air bag water injection port 6 is located on one side of the water outlet port 5, which is convenient for water injection from the air bag water injection port 6 to the bladder. The opening of the water port 6 is provided with a rubber stopper 7, which can prevent the water injected into the airbag 4 from flowing out; the inner center of the catheter body 1 is provided with a drainage cavity 8 along the axis, and one end of the drainage port 5 passes through the drainage cavity 8. A water injection cavity 9 is opened on the side connected to the drainage cavity 8 for conveying water.

Preferably, the top of the drainage cavity 8 is opened at the first side hole 2 and the second side hole 3 , and the tail is opened at the drain port 5 .

Preferably, the top of the water injection cavity 9 communicates with the airbag 4 , and the tail is detachably connected to the rubber plug 7 .

Preferably, the total length of the catheter body 1 is 410-415 mm, and the tip of the catheter body 1 can be inclined by 0-90° to the side away from the balloon 4 .

Preferably, the catheter body 1 is an integral injection molding structure, which can effectively increase the overall strength and reduce the possibility of damage.

Preferably, the upper and lower diameters of the airbag 4 are 22 mm.

Preferably, the first side hole 2 and the second side hole 3 are elliptical structures with a long axis length of 15mm, and the large side holes are designed to effectively flush out large residual tissue fragments or blood clots in the bladder after surgery. Thereby, the possibility of blockage of the urinary catheter is greatly reduced, the possibility of going to the operating room for blood clot removal because the blood clot cannot be flushed out, and the pain of the patient is relieved, and the workload of the doctor is reduced.

Preferably, the distance between the top ends of the first side hole 2 and the second side hole 3 is 12 mm from the top end of the urinary catheter body 1 .

Preferably, the catheter body 1 is made of one or more materials of natural rubber, silicone rubber or polyvinyl chloride, which is non-toxic and durable, and can be indwelled in a patient's body for a long time as required.

The specific use process and principle of the utility model are as follows: the catheter of the present utility model is inserted into the bladder of the patient and filled with water, and the air bag 4 expands and becomes larger, so that the catheter remains in the bladder, and is not easy to come out, preventing flushing During the process, the catheter body slips and causes repeated intubation, which reduces the pain of the patient; water is injected from the airbag water injection port 6, because the inner wall of the airbag 4 is provided with a tube body groove 10, which is combined with the catheter body 1 tip to open Under the pressure of the expanded balloon, the catheter can be deflected to the opposite side of the balloon 4, so that the inclination angle of the head of the catheter body 1 can be controlled by the amount of injected water. , to facilitate flushing out blood clots in different positions in the bladder.

When the utility model is used to flush blood clots, a 20ml syringe can be used to aspirate physiological saline, and then the physiological saline can be injected against the drainage port 5 to dilute the residual tissue fragments or blood clots in the patient's bladder. Physiological saline is drawn out, and the negative pressure of the syringe is used to suck out the blood clot from the first side hole 2 or the second side hole 3 while drawing out the physiological saline, so as to complete the suction of the patient's bladder blood clot; The rubber stopper 7 can not only prevent the water injected into the balloon 4 from flowing out, but also control the deflection angle of the head of the catheter body 1 .

Embodiment 2

As shown in FIG. 1 to FIG. 3 , a urinary catheter for flushing blood clots in the bladder is different from the first embodiment in that the total length of the urinary catheter body 1 is 415-420 mm, and the upper and lower parts of the balloon 4 The diameter is 24mm, the length of the long axis of the first side hole 2 and the second side hole 3 is 16mm, and the top of the first side hole 2 and the second side hole 3 is distanced from the top of the catheter body 1. It is 14mm, and the use process and principle are the same as those of the first embodiment.

The above are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Under the concept of the utility model of the present utility model, the equivalent structure transformations made by using the contents of the present utility model description and accompanying drawings, Or directly/indirectly applied in other related technical fields are included in the scope of patent protection of the present invention.

Claims (9)

1. A catheter for flushing bladder blood clots comprises a catheter body (1) and is characterized in that a first side hole (2) and a second side hole (3) are symmetrically formed in the tip end of the catheter body (1), an air bag (4) is arranged in the middle of the catheter body and is positioned below the first side hole (2) and/or the second side hole (3), and a water outlet (5) and an air bag water injection port (6) are formed in the tail end of the catheter body; the catheter is characterized in that the air bag (4) surrounds one half of the catheter body (1), a pipe body groove (10) is formed in the inner wall of the catheter body (1) which is not surrounded by the air bag (4), the water outlet (5) and the catheter body (1) are concentric and coaxial, the air bag water filling port (6) is located on one side of the water outlet (5), and a rubber plug (7) is arranged at the opening of the air bag water filling port (6); the catheter is characterized in that a drainage cavity (8) is formed in the center of the interior of the catheter body (1) along the axis, and a water injection cavity (9) is formed in one side of the drainage cavity (8).

2. A catheter for irrigating bladder clots according to claim 1, wherein: the top opening of the drainage cavity (8) is arranged at the positions of the first side hole (2) and the second side hole (3), and the tail opening is arranged at the position of the drainage outlet (5).

3. A catheter for irrigating bladder clots according to claim 2, wherein: the top of the water injection cavity (9) is communicated with the air bag (4), and the tail part of the water injection cavity is detachably connected with the rubber plug (7).

4. A catheter for irrigating bladder clots according to claim 3, wherein: the total length of the catheter body (1) is 410-420 mm, and the tip of the catheter body can incline to one side far away from the air bag (4) by 0-90 degrees.

5. A catheter for irrigating bladder clots according to claim 4, wherein: the catheter body (1) is of an integrated injection molding structure.

6. A catheter for irrigating bladder clots according to claim 4, wherein: the upper and lower diameters of the air bag (4) are 22 mm.

7. A catheter for irrigating bladder clots according to claim 6, wherein: the first side hole (2) and the second side hole (3) are of oval structures, and the length of the long axis of the first side hole is 15 mm.

8. A catheter for irrigating bladder clots according to claim 7, wherein: the top end distance of the first side hole (2) and the second side hole (3) is 12mm from the top end length of the catheter body (1).

9. A catheter for irrigating a blood clot from the bladder according to any of claims 1 to 8, wherein: the catheter body (1) is made of one or more materials of natural rubber, silicon rubber or polyvinyl chloride.

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