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, especially, relate to a ureteral catheter.

Background

Ureteral catheters are used in urological procedures, particularly bladder procedures such as: vaginal vesical fistula repair, radical bladder cancer resection with ileal bladder and the like require retention of anuria in the bladder and healing of injured or sutured portions of the bladder. The time of remaining the ureteral catheter after the operation of part of patients reaches 2 weeks or more. At present, a ureteral catheter is usually placed in a guide wire through a ureteroscope or a cystoscope, and the ureteral catheter is placed along the guide wire. But the prior clinical ureteral catheter has the defects of difficult fixation, easy slippage and difficult tail connection with a catheter bag. The ureteral catheter often slips from the renal pelvis and the ureter when a patient is kept in place for a long time, so that the bladder is in early contact with urine to affect healing. The tail part of the urine catheter is not connected with a urinary bag device well, so urine leaks out frequently, and the quality of life of a patient during indwelling is influenced.

Disclosure of Invention

The utility model discloses aim at solving one of the problem that above-mentioned prior art exists at least, provide a ureteral catheter, this ureteral catheter is fixed firm, difficult slippage, and the leakproofness of connecting is good, simple structure moreover, convenient operation.

In order to achieve the above object, the utility model provides a ureteral catheter, including main part pipe portion and with main part pipe integrated into one piece's extension pipe portion, just main part pipe portion outside cover is equipped with an expandable water pocket, just the water pocket is equipped with the water filling port that is suitable for to be linked together with it, ureteral catheter includes first link and second link, first link is suitable for to peg graft to the renal pelvis in, the second link links to each other with the catheterization bag.

In the technical scheme, the guide wire is placed in through a ureteroscope or a cystoscope, the ureteral catheter is placed in along the guide wire, then water is injected from a water injection port to expand the water bag, the main pipe part is clamped in the bladder, namely, the main pipe part is clamped in the bladder by sleeving the expandable water bag on the outer side of the main pipe part, so that the ureteral catheter can be prevented from sliding off, the premature contact of the bladder with urine is avoided, the healing speed is improved, the ureteral catheter is fixed firmly, the slippage is not easy to occur, the connected sealing performance is good, the structure is simple, and the operation is convenient.

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

further, the water injection port and the water sac are connected through a non-expansion connecting pipe.

Furthermore, a one-way valve which is communicated from the direction of the water filling port to the direction of the water sac is also arranged between the water filling port and the connecting pipe.

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

Preferably, a drainage side hole communicated with the extension pipe part is formed in the peripheral wall of the first connecting end.

Preferably, the drainage side holes are plural and arrayed along the circumferential direction and the length direction of the extension tube part.

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

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

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

Optionally, the connection tube is disposed within the main body tube portion.

According to the utility model discloses a ureteral catheter, its additional technical feature still has following technological effect: the one-way valve can prevent water from flowing from the water bag to the water injection port; through setting up the drainage side opening, can increase the delivery capacity of extension pipe portion to the urine like this.

Drawings

Fig. 1 is a schematic structural view of a ureteral catheter.

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

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the invention as defined by the claims. It includes various specific details to assist in this understanding, but these details should be construed as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, 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 the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the 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 "1 st", "2 nd", "first" and "second" may be used to describe the respective 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 the corresponding elements. The above expressions are used to distinguish one element from another.

References herein to "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships, which may change accordingly when the absolute position of the object being described changes.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references include plural references unless there is a significant difference in context, scheme or the like between them.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

According to the utility model discloses a ureteral catheter 10, 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 is equipped with the water filling port 30 that is suitable for being linked together with it, ureteral catheter 10 includes first link 1A and second link 1B, first link 1A is suitable for to peg graft to the renal pelvis in, second link 1B links to each other with the catheterization bag. Specifically, after the ureteral catheter 10 is placed into a human body, water is injected into the water injection port 30 to expand the water bag 20, the ureteral catheter 10 can be clamped in the renal pelvis through the expansion of the water bag 20, so that the ureteral catheter 10 is prevented from slipping off, the bladder is prevented from contacting urine too early, healing is favorably influenced, the ureteral catheter 10 is fixed and firm, is not easy to slip off, and is good in connection sealing performance, simple in structure and convenient to operate.

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 the water filling port 30 is filled with water to expand the water bag 20, so that the main tube portion 11 is engaged with the bladder, i.e., the main tube portion 11 is engaged with the bladder by sleeving the expandable water bag 20 on the outer side of the main tube portion 11, so that the ureteral catheter 10 is prevented from slipping off, the bladder is prevented from contacting urine prematurely, and the healing speed is improved.

Further, the water filling port 30 with connect through non-expanded connecting pipe 40 between the water pocket 20, that is to say, by water filling port 30 department water injection, water gets into in the water pocket 20 via non-expanded connecting pipe 40, the water pocket 20 takes place the inflation, at this in-process, the connecting pipe 40 of connecting water pocket 20 and water filling port 30 can not take place the deformation, and through welding or binder sealing connection between connecting pipe 40 and water filling port 30, the water pocket 20, can guarantee like this that the water injection in-process can not take place to omit to guarantee effectively going on of whole operation.

Further, water filling port 30 with still be equipped with the check valve 50 that switches on by water filling port 30 direction towards water pocket 20 direction between the connecting pipe 40, in other words, water can only have water filling port 30 to flow to water pocket 20, and can not locate reverse flow direction water filling port 30 from water pocket 20 the utility model discloses in can inject water into water filling port 30 through injection needle pipe, under injection needle pipe's pressure, can conveniently go into water filling port 30 with water pressure like this to get into in the water pocket 20.

Preferably, the distance L of the water bladder 20 from the first connection end 1A is 25 cm. Therefore, the distance from the water bag 20 to the first connecting end 1A can be ensured to be larger than the length of a normal human ureter, the extension tube part 12 can be ensured to extend to pass through the ureter in actual operation, and medical personnel can conveniently perform operation.

Preferably, drainage side holes 121 communicating with the extension tube part 12 are formed in the peripheral wall of the first connection end 1A, and specifically, the drainage side holes 121 are respectively arrayed along the length and the circumferential direction of the extension tube part 12, so that the urine conveying amount of the extension tube part 12 can be increased.

Preferably, the first connection end 1A can be a flexible and bendable structure, for example, the first connection end 1A can be made into a bent structure, so that the ureteral catheter 10 can be automatically coiled into a ring to be coiled in the renal pelvis to be more firmly fixed.

Preferably, the second connection end 1B is provided with a tapered connection end 111, and the inner diameter of the tapered connection end is gradually increased from the first connection end 1A to the second connection end 1B, that is, one end of the tapered connection end 111 has a size of about the outer circumference F6-F8 (the diameter is about 2mm-2.67mm), is connected to the main tube part 11 of the ureteral catheter, and the other end has a diameter of 8mm, and is clamped on the drainage head of the urine bag. The conical connecting end 111 is designed to be of a horn-shaped structure with an outward opening, so that the ureteral catheter can be directly placed in a direct view in a ureteroscope body when placed, the ureteral catheter 10 can be directly placed in a direct view in the ureteroscope body when placed by the aid of the structure, a guide wire is not needed, a mirror does not need to be withdrawn, the placed position is observed by entering the mirror again, and operation time can be saved.

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

Alternatively, the connection pipe 40 is provided in the main body pipe portion 11; that is, the connection tube 40 is connected to the water bag 20 along the inside of the main tube 11, and the connection tube 40 is disposed inside the main tube 11, which simplifies the arrangement of the connection tube 40 and makes the ureteral catheter 10 more compact and beautiful as a whole.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner accordingly. Moreover, the simple transformation and the solution of adapting and functional structure transformation to the prior art, which can be thought of by those skilled in the art, all belong to the protection scope of the present invention.

While the 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 scope of the invention as defined by the appended claims.

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).