CN209848118U - Ureteral catheter - Google Patents

Abstract

The utility model discloses a ureteral catheter, including main part pipe portion (11) and with main part pipe portion (11) integrated into one piece's extension pipe portion (12), just main part pipe portion (11) outside cover is equipped with an expandable water pocket (20), just water pocket (20) are equipped with water filling port (30) that are suitable for being linked together with it, ureteral catheter (10) are including first link (1A) and second link (1B), first link (1A) are suitable for to be inserted to the renal pelvis in, second link (1B) link to each other with the catheterization bag, and this ureteral catheter is fixed firm, and difficult slippage is good, and the leakproofness of connecting is good, simple structure moreover, convenient operation.

Description

ureteral catheter

technical field

The utility model relates to the field of medical equipment, in particular to a ureter catheter.

Background technique

Ureteral catheters are mostly used in urological surgery, especially bladder surgery, such as: vaginal bladder fistula repair, radical resection of bladder cancer combined with ileal bladder replacement, etc. It is necessary to keep the bladder free of urine and heal the damaged or sutured part of the bladder. Some patients left ureteral catheters for 2 weeks or more after surgery. At present, most ureteral catheters are placed by inserting a guide wire through a ureteroscope or a cystoscope, and inserting a ureteral catheter along the guide wire. However, clinically, ureteral catheters have the disadvantages of being difficult to fix and easily slipping, and difficult to connect the catheter bag at the tail. When the patient is indwelling for a long time, the ureteral catheter often slips from the renal pelvis and ureter, which makes the bladder contact with urine prematurely and affects the healing. There is no good connection catheter bag device at the tail, and urine often leaks out, which affects the quality of life of the patient during indwelling.

Contents of the invention

The utility model aims to solve at least one of the problems in the prior art above, and provides a ureteral catheter, which is firmly fixed, not easy to slip, has good sealing performance, and is simple in structure and easy to operate.

In order to achieve the above purpose, the utility model provides a ureteral catheter, which includes a main body tube and an extension tube integrally formed with the main body tube, and an inflatable water bladder is sheathed on the outside of the main body tube, and the The water bag is provided with a water injection port suitable for communicating with it, and the ureteral catheter includes a first connection end and a second connection end, the first connection end is suitable for being inserted into the renal pelvis, and the second connection end is connected to Catheter bag connected.

In this technical solution, a guide wire is inserted through a ureteroscope or a cystoscope, a ureteral catheter is inserted along the guide wire, and then water is injected into the water injection port to expand the water bag so that the main tube is clamped in the bladder, that is, through the An inflatable water bag is sleeved outside the main body tube so that the main body tube can be clamped in the bladder, which can prevent the ureteral catheter from slipping and prevent the bladder from contacting urine prematurely, thereby improving the speed of healing. The ureteral catheter is firmly fixed, not easy to slip off, has good sealing performance of the connection, has a simple structure, and is convenient to operate.

In addition, the ureteral catheter according to the utility model can also have the following technical features:

Further, the water injection port is connected to the water bladder through a non-expandable connecting tube.

Further, a one-way valve leading from the direction of the water injection port to the direction of the water bag is also provided between the water injection port and the connecting pipe.

Preferably, the distance L between the water bladder and the first connecting end is 25 cm.

Preferably, the outer peripheral wall of the first connection end is provided with a drainage side hole communicating with the extension pipe part.

Preferably, there are a plurality of drainage side holes, arrayed along the circumferential direction and the longitudinal direction of the extension tube portion.

Preferably, the first connection end may be an elastic bending and stretching structure.

Preferably, the second connection end is provided with a tapered connection end, and its inner diameter gradually increases from the first connection end toward the second connection end.

Preferably, the main body pipe part and the extension pipe part are latex pipe fittings.

Optionally, the connecting pipe is arranged in the main pipe portion.

According to the ureteral catheter of the present invention, its additional technical features also have the following technical effects: by setting a one-way valve, water can be prevented from flowing from the water bag to the water injection port; Liquid delivery volume.

Description of drawings

Figure 1 is a schematic diagram of the structure of a ureteral catheter.

In the figure: ureteral catheter 10; main body tube portion 11; tapered connection end 111; extension tube portion 12; drainage side hole 121; first connection end 1A; second connection end 1B; water bag 20; water injection port 30; connection tube 40 ; one-way valve 50 .

Detailed ways

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

The following description is provided with reference to the accompanying drawings to facilitate a comprehensive understanding of various embodiments of the present invention defined by the claims. It contains various specific details to facilitate that understanding but these should be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications of the various embodiments described herein can be made without departing from the scope of the invention as defined in the appended claims. Also, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of various embodiments of the present invention are provided for the purpose of explanation only and not for the purpose of limiting the present invention as defined by the appended claims.

Features, integers or characteristics described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith.

Although expressions such as "1st", "2nd", "first" and "second" may be used to describe various elements of the present invention, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of corresponding elements. The above expressions are used to distinguish one component from another.

"Up", "Down", "Left", "Right" and so on mentioned in the text are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

The terminology used in the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. A singular expression includes a plural expression, unless there is a significant difference in context or scheme therebetween.

Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having consistent meanings in the relevant fields and in the context of this specification, and should not be interpreted in idealized or overly formalized meanings, unless expressly so defined herein.

A ureteral catheter 10 according to the present utility model includes a main body tube part 11 and an extension tube part 12 integrally formed with the main body tube part 11, and an inflatable water bladder 20 is sheathed on the outside of the main body tube part 11, and The water bag 20 is provided with a water injection port 30 suitable for communicating with it, and the ureteral catheter 10 includes a first connection end 1A and a second connection end 1B, and the first connection end 1A is suitable for being inserted into the renal pelvis , the second connection end 1B is connected to the catheter bag. Specifically, after the ureteral catheter 10 is inserted into the human body, water is injected into the water injection port 30 to expand the water bag 20, and the expansion of the water bag 20 can cause the ureteral catheter 10 to be clamped in the renal pelvis, thereby preventing the ureteral catheter 10 from The ureteral catheter 10 is firmly fixed, not easy to slip off, and the sealing performance of the connection is good, and the structure is simple and the operation is convenient.

It can be understood that the guide wire is inserted through the ureteroscope or cystoscope, the ureteral catheter 10 is inserted along the guide wire, and then water is injected into the water injection port 30 to expand the water bag 20, so that the main body tube 11 is clamped in the bladder, That is, by setting an expandable water bag 20 on the outside of the main body tube 11, the main body tube 11 can be clamped in the bladder, so that the ureteral catheter 10 can be avoided from slipping, and the bladder can be prevented from contacting urine prematurely. Helps increase the speed of healing.

Further, the water injection port 30 is connected to the water bag 20 through a non-inflatable connecting pipe 40, that is, water is injected from the water injection port 30, and the water enters the water bag 20 through the non-inflatable connecting pipe 40, The water bag 20 expands, and during this process, the connecting pipe 40 connecting the water bag 20 and the water injection port 30 will not be deformed, and the connection pipe 40, the water injection port 30 and the water bag 20 are sealed and connected by welding or adhesive , which can ensure that there will be no omissions during the water injection process, thereby ensuring the effective operation of the entire operation.

Further, a one-way valve 50 is provided between the water injection port 30 and the connecting pipe 40 from the direction of the water injection port 30 to the direction of the water bag 20. In other words, the water can only flow to the water through the water injection port 30. bladder 20, but can not reversely flow from the water bladder 20 to the water injection port 30, in the utility model, water can be injected into the water injection port 30 through the injection needle tube, so that the water can be easily pressed into the water injection port under the pressure of the injection needle tube 30, so as to enter the water bag 20.

Preferably, the distance L between the water bladder 20 and the first connecting end 1A is 25 cm. This can ensure that the distance between the water bag 20 and the first connecting end 1A is greater than the length of the ureter of a normal human body. In actual operation, it can ensure that the extension tube part 12 can extend through the ureter, which is convenient for medical personnel to perform operations.

Preferably, the outer peripheral wall of the first connection end 1A is provided with a drainage side hole 121 communicating with the extension tube part 12, specifically, the drainage side hole 121 is respectively along the length and circumference of the extension tube part 12. To the array, this can increase the amount of urine delivered by the extension tube portion 12 .

Preferably, the first connecting end 1A can be an elastic bending and stretching structure, for example, the first connecting end 1A is made into a curved structure, so that it can be automatically coiled into a circle and coiled in the renal pelvis, so that the ureteral catheter 10 can be fixed more firmly.

Preferably, the second connection end 1B is provided with a tapered connection end 111, and its inner diameter gradually increases from the first connection end 1A toward the second connection end 1B, that is, one end of the tapered connection end 111 has a size of about The outer circumference diameter is F6-F8 (about 2mm-2.67mm in diameter), which is connected to the main tube part 11 of the ureteral catheter, and the other end is 8mm in diameter, which is clamped on the drainage head of the ureteral bag. The tapered connecting end 111 is designed as a trumpet-shaped structure with an opening outward, so that the ureteral catheter can be placed directly in the body of the ureteroscope when placed. This structure allows the ureteral catheter 10 to be placed directly under the ureteroscope It is placed under direct vision in the body, no need to use a guide wire, no need to withdraw the mirror, and re-enter the mirror to observe the placement position, which can save operation time.

Preferably, the main body pipe part 11 and the extension pipe part 12 are latex pipe fittings, and latex has strong stretchability, and can prevent mites and bacteria.

Optionally, the connecting pipe 40 is arranged in the main body pipe part 11; that is to say, the connecting pipe 40 is connected to the water bag 20 along the inner direction of the main body pipe part 11, and the connecting pipe 40 is arranged in the main body pipe part 11 simplifies the arrangement of the connecting tube 40, which can make the whole ureteral catheter 10 more concise and beautiful.

The above descriptions are only exemplary implementations of the present utility model, and are not intended to limit the protection scope of the present utility model, and the protection scope of the present utility model is determined by the appended claims.

Those skilled in the art can understand that the various features in the multiple embodiments of the present invention described above can be correspondingly omitted, added or combined in any manner. Moreover, the simple conversion methods that can be imagined by those skilled in the art and the schemes of adaptable and functional structural transformations to the prior art all belong to the protection scope of the present utility model.

While the present invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the limits of the appended claims. The scope of the utility model.

Claims (10)

1. The utility model provides a ureteral catheter, its characterized in that, including main part pipe portion (11) and with main part pipe portion (11) integrated into one piece's extension pipe portion (12), just main part pipe portion (11) outside cover is equipped with an expandable water bag (20), just water bag (20) are equipped with water filling port (30) that are suitable for being linked together with it, ureteral catheter (10) are including first link (1A) and second link (1B), first link (1A) are suitable for to be pegged graft to in the renal pelvis, second link (1B) link to each other with the catheterization bag.

2. The ureteral catheter according to claim 1, wherein said water injection port (30) is connected to said water bladder (20) by a non-inflatable connection tube (40).

3. The ureteral catheter according to claim 2, wherein a one-way valve (50) is provided between the water injection port (30) and the connection tube (40), which is open from the direction of the water injection port (30) toward the water bladder (20).

4. The ureteral catheter according to claim 1, wherein the distance L of the water bladder (20) from the first connection end (1A) is 25 cm.

5. The ureteral catheter according to claim 1, wherein the peripheral wall of the first connection end (1A) is provided with a drainage side hole (121) communicating with the extension tube portion (12).

6. The ureteral catheter according to claim 5, wherein said drainage side holes (121) are plural and arrayed along the circumferential and lengthwise direction of said extension tubes (12).

7. The ureteral catheter according to claim 1, wherein the first connection end (1A) may be of elastically flexible structure.

8. The ureteral catheter according to claim 1, wherein the second connection end (1B) is provided with a tapered connection end (111) and has an inner diameter that gradually increases from the first connection end (1A) towards the second connection end (1B).

9. The ureteral catheter according to claim 1, wherein the main tube portion (11), the extension tube portion (12) are latex tubing.

10. The ureteral catheter according to claim 2, wherein the connection tube (40) is provided inside the main body tube portion (11).