CN216020964U - Double-balloon ureteral liquid-gas expansion pipeline kit with urethral catheterization function - Google Patents

Abstract

The utility model relates to a double-balloon ureteral liquid-gas expansion pipeline suite with a urethral catheterization function, which comprises a ureteral catheter, wherein one end of the ureteral catheter is provided with a tip drainage port, one side, close to the tip drainage port, of the ureteral catheter is provided with a first balloon, and one side, far away from the first balloon, of the ureteral catheter is provided with a second balloon; one end of the ureteral catheter, which is far away from the first balloon, is sequentially provided with a first channel, a second channel, a third channel, a fourth channel and a fifth channel. The ureter is blocked by the first balloon and the second balloon, and then gas or liquid is injected into the ureter by the first opening, so that the purpose of expanding the ureter is achieved; through setting up fifth passageway and second opening, can make the second opening arrange the bladder in, the urine accessible second opening in the bladder flows to the fifth passageway, and then realizes the purpose of bladder urine drainage, and convenience of customers discharges the urine in the bladder, need not to imbed a ureter into toward human body again, reduces and inserts the degree of difficulty and damage risk.

Description

Double-balloon ureteral liquid-gas expansion pipeline kit with urethral catheterization function

Technical Field

The utility model relates to the technical field of ureter soft lens operation treatment, in particular to a double-balloon ureter liquid-gas expansion pipeline suite with a urethral catheterization function.

Background

Compared with a ureter hard lens, the ureter soft lens has a bendable function, can treat ureteral calculus which goes up to a kidney along a ureter in a calculus crushing process, and ureter upper segment calculus, and is more and more subjected to ureter soft lens operation treatment. The percutaneous nephrolithotomy is the absolute mainstream of nephrolithotomy in kidney stones with indications of surgical lithotomy for a long time before the development of ureter soft lens technology and technology. Compared with the percutaneous nephroscope lithotripsy, the ureter soft-lens lithotripsy does not need renal puncture, so the risk of renal hemorrhage caused by puncture expansion and pulling the lens body during lithotripsy is avoided. With the promotion of the technology of the ureter soft lens and the popularization of the technology, more and more kidney stones and ureter upper segment stones which are not loaded too much and have operation indication are treated by the ureter soft lens in recent years. The percutaneous nephrolithotomy combined with the ureter soft lens is also a research hotspot. For kidney stones with high hardness and unsuccessful extracorporeal shock wave lithotripsy, ureteroscopy became the first choice.

Although the ureter soft lens lithotripsy has a plurality of advantages compared with ureter hard lens lithotripsy and percutaneous nephroscope lithotripsy, the ureter soft lens lithotripsy also has limitations, wherein important points are that: the inner diameter of the ureter lumen is relatively small, limiting the outer diameter of the soft lens and the diameter of the operating (water flow) channel. The consequence is: 1) in the first stage of the ureter soft lens lithotripsy, the ureter soft lens sheath cannot be successfully placed into a relatively narrow ureter cavity, and the ureter soft lens sheath cannot be placed into the ureter soft lens sheath, so that the soft lens lithotripsy operation cannot be completed directly. Even if the units and experts with abundant operation experience break the ureter soft lens at the first stage, the failure rate of the tube placement is about 10 percent or even higher. 2) The narrow inner diameter of the ureter improves the process requirement of the flexible ureteroscope, so that the flexible ureteroscope is high in price and easy to damage, the cost of the technology is increased as a direct result, and the development of the technology is limited. 3) The flexible ureteroscope operation channel is narrow and small, and the passageway is occupied by rubble optic fibre in the rubble process, and various consequences that the rivers play unsmooth and lead to: kidney damage caused by increased pressure, retrograde infection, accidental injury caused by unclear visual field, reduced lithotripsy efficiency, prolonged operation time, limited total operation time and the like. The method is adopted at present, but the operation needs 2 times of operations, and the interval time between the two operations is about one week or even longer. The ureter internal bracket is carried, which has obvious influence on the life quality of patients: discomfort in the waist, hematuria, frequent urination, lumbago during urination, etc. Therefore, a plurality of units and experts with rich operation experience of the ureter soft lens refuse to place the internal support before the ureter soft lens lithotripsy. In any case, the effect of placing the ureteral stent in advance to expand the ureter is relatively limited. Whether a bracket is placed in a ureter for expansion before the ureter soft lens lithotripsy operation or not is an ongoing topic in the urinary academia in recent years.

In fact, ureters are flexible, water-expandable muscular tubes with a greater passive expansion capacity, which can be understood from the anatomy of the ureter. Compared with the mechanical force expansion of the ureter, water and gas expand the ureter with softer and more uniform force. As a urologist, expansion of the ureter by water, increase of the internal diameter is very easy to understand: when ureteral calculus obstructs ureter, the part above obstruction plane of kidney and ureter is expanded by urine to different extent, even the diameter of ureter inner diameter exceeds 20 mm. Moreover, this expansion is mostly reversible, without significant impairment of the ureteral anatomy and function: after the acute ureteral obstruction is relieved for a period of time, B-ultrasonic examination or radiography examination is carried out again, the ureter which is expanded originally is not expanded any more, the renal effusion disappears, and the renal function is recovered to be normal. However, we can understand from the following experience: at the initial stage of relieving the acute ureteral obstruction, the ureter still keeps an expanded state: patients with ureteral calculus and renal colic receive ureteroscope calculus, only one spacious ureter is found, no ureteral calculus is found, and the calculus is discharged. When the calculus is discharged, a spacious ureter can still be obtained.

The Panyu central hospital Liqiang physician filed an invention patent application of 'a double-balloon catheter kit for ureter expansion' (application number: 201810563731.5) to the national patent office on 6/4/2018, which is currently in the stage of substantial examination. This patent discloses the use of fluid or gas pressure to dilate the ureter with a mild and controlled measurable amount of force, with no trauma and bleeding. After the ureter is expanded by the tool and the method, a thicker soft lens sheath can be conveniently and safely placed, so that the operation success rate of the ureter soft lens is increased, the process requirement and the price of the ureter soft lens are reduced, the performance of the ureter soft lens is improved, the diameter of a water flow channel is increased, and the safety and the effect of the ureter soft lens are quickly improved.

When a ureteral catheter of "a double balloon catheter set for dilating a ureter" is smoothly inserted into the ureter, the lower balloon is located at the inner section of the uretero vesical wall, and the upper balloon is located at the lower section of the middle section of the ureter, so that the lower section of the ureter is sufficiently dilated for several hours (perhaps 10 hours or more). At this time, the patient lies in a ward under the pain relieving pump, but the urine in the bladder of the patient is inconvenient to discharge, if a ureter is built in the human body, the insertion difficulty is increased, the damage risk is increased, the position of the ureter catheter is changed in the insertion process, the patient feels uncomfortable in the urethra after the insertion, and the patient feels uncomfortable in the moving process, so that the patient feels uncomfortable, and even the ureter catheter is displaced.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to overcome the defects and shortcomings in the prior art and provide a double-balloon ureteral liquid-gas expansion pipeline kit with a urethral catheterization function.

The double-balloon ureteral liquid-gas expansion pipeline suite with the urethral catheterization function comprises a ureteral catheter, wherein one end of the ureteral catheter is provided with a tip drainage port, one side, close to the tip drainage port, of the ureteral catheter is provided with a first balloon, and one side, far away from the first balloon, of the ureteral catheter is provided with a second balloon; a first channel, a second channel, a third channel, a fourth channel and a fifth channel are sequentially arranged at one end of the ureteral catheter far away from the first balloon; the first channel is communicated with the tip drainage passage opening, the second channel is communicated with the first balloon, and the third channel is communicated with the second balloon; a first opening and a second opening are formed in one side of the ureteral catheter; the first opening is positioned between the first balloon and the second balloon and communicated with the fourth channel; the second opening is positioned on one side far away from the first balloon and the second balloon and communicated with the fifth channel; the first channel coincides with the ureteral catheter.

Further, a bladder balloon is also included; the bladder balloon is used for being placed in the bladder and is arranged on one side, away from the balloon II, of the ureteral catheter; a sixth channel is further arranged at one end, away from the first balloon, of the ureteral catheter and is communicated with the bladder balloon; the second opening is located between the second balloon and the bladder balloon.

Further, the diameter of the tube body of the ureteral catheter is 8Fr-13 Fr.

Further, the diameter of the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the sixth channel is 1.5Fr-2 Fr.

Further, the cross sections of the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the sixth channel are circular.

Furthermore, annular convex parts are arranged on the peripheral sides of the first balloon, the second balloon and the bladder balloon; the annular bulge part is communicated with the corresponding balloon I or balloon II or bladder balloon; when the first balloon, the second balloon and the bladder balloon are not expanded, the annular convex parts and the surfaces of the first balloon, the second balloon or the bladder balloon are combined into a smooth surface.

Further, the axial direction of the annular convex part is parallel to the axial direction of the ureteral catheter.

Further, the annular bulge on the surface of the bladder balloon is positioned on the side far away from the second balloon.

Further, a constant pressure water supplement device or a constant pressure air supplement device is also included; and the constant-pressure water supplementing device or the constant-pressure air supplementing device is connected with the fourth channel.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the ureter is blocked by the first balloon and the second balloon, and then gas or liquid is injected into the ureter by the first opening, so that the purpose of expanding the ureter is achieved; through setting up fifth passageway and second opening, can make the second opening arrange the bladder in, the urine accessible second opening in the bladder flows to the fifth passageway, and then realizes the purpose of bladder urine drainage, and convenience of customers discharges the urine in the bladder, need not to imbed a ureter into toward human body again, reduces and inserts the degree of difficulty and damage risk.

(2) By arranging the bladder balloon, the position between the bladder and the urethra can be clamped by the bladder balloon, so that the ureteral catheter can be prevented from being dragged in the moving process of a patient, the patient feels uncomfortable, the risk of displacement of the ureteral catheter is avoided, and the working stability of the ureteral catheter is effectively improved;

(3) the constant-pressure water replenishing device is connected with the fourth channel, so that the pressure of the blocked ureter can be directly measured, the liquid and gas injected into the fourth channel can be regulated and controlled, and the ureter is ensured to be expanded to a proper size;

(4) by arranging the annular bulge part, after the first balloon and the second balloon are expanded, the annular bulge part can be completely attached to the inner wall of the ureter to serve as a sealing ring, so that the sealing property of the ureter is improved, and liquid or air is prevented from permeating into the ureter in the process of injecting air or liquid into the blocked ureter; the bladder balloon can better clamp the bladder neck position between the bladder and the urethra through the annular convex part, and the annular convex part on the surface of the bladder balloon is positioned on one side far away from the balloon II, so that the bladder neck position between the bladder and the urethra can be clamped by the annular convex part, and discomfort of a patient caused by the fact that the whole bladder balloon is blocked in the urethra is avoided.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the structure of the first embodiment;

FIG. 2 is a schematic cross-sectional view of the first embodiment;

FIG. 3 is a schematic view of the structure of the second embodiment.

In the figure: 10. a ureteral catheter; 11. a sharp end drainage port; 12. a first channel; 13. a second channel; 14. a third channel; 15. a fourth channel; 16. a fifth channel; 17. a sixth channel; 18. a first opening; 19. a second opening; 20. a first balloon; 30. a second balloon; 40. a bladder balloon; 50. a constant pressure water replenishing device; 60. an annular protrusion.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The first embodiment is as follows:

referring to fig. 1 to 2, the dual-balloon ureteral fluid and gas dilatation catheter kit with a catheterization function of the present embodiment includes a ureteral catheter 10, wherein one end of the ureteral catheter 10 is provided with a tip drainage port 11, a first balloon 20 is disposed on a side of the ureteral catheter 10 close to the tip drainage port 11, and a second balloon 30 is disposed on a side of the ureteral catheter 10 away from the first balloon 20; a first channel 12, a second channel 13, a third channel 14, a fourth channel 15 and a fifth channel 16 are sequentially arranged at one end, far away from the first balloon 20, of the ureteral catheter 10; the first channel 12 is communicated with the tip drainage port 11, the second channel 13 is communicated with the first balloon 20, and the third channel 14 is communicated with the second balloon 30; a first opening 18 and a second opening 19 are arranged at one side of the ureteral catheter 10; the first opening 18 is positioned between the first balloon 20 and the second balloon 30, and the first opening 18 is communicated with the fourth channel 15; the second opening 19 is positioned on the side far away from the first balloon 20 and the second balloon 30, and the second opening 19 is communicated with the fifth channel 16; said first channel 12 coincides with the ureteral catheter 10.

In particular, a bladder balloon 40; the bladder balloon 40 is used for being placed in the bladder and is arranged on one side, away from the second balloon 30, of the ureteral catheter 10; a sixth channel 17 is further arranged at one end, away from the first balloon 20, of the ureteral catheter 10, and the sixth channel 17 is communicated with the bladder balloon 40; the second opening 19 is located between the second balloon 30 and the bladder balloon 40.

Specifically, the diameter of the ureteral catheter 10 is 8Fr to 13Fr, and in the present embodiment, 12Fr is preferable.

Specifically, the diameters of the second channel 13, the third channel 14, the fourth channel 15, the fifth channel 16 and the sixth channel 17 are 1.5Fr-2Fr, and the diameter of the embodiment is preferably 1.8 Fr.

Specifically, the cross sections of the first channel 12, the second channel 13, the third channel 14, the fourth channel 15, the fifth channel 16 and the sixth channel 17 are circular.

Preferably, radiopaque metal is embedded on the first and second balloons 20, 30 and the bladder balloon 40 to show the position of the balloons during operation.

The working process of the embodiment:

an operation side guide wire is placed under a cystoscope, and then a double-balloon ureteral liquid-gas expansion pipeline suite with a urethral catheterization function is placed into a ureter from the outside of a human body through a urethra and a bladder along the guide wire, so that the first balloon 20 and the second balloon 30 are positioned in the ureter, and the bladder balloon 40 is positioned at the bladder; then, water or air is injected into the first balloon 20 and the second balloon 30 through the second channel 13 and the third channel 14, so that the ureters are blocked by the first balloon 20 and the second balloon 30; water or air is injected into the bladder balloon 40 through the sixth channel 17, and the bladder balloon 40 can clamp the bladder neck position between the bladder and the urethra, so that the ureteral catheter 10 is integrally fixed in a human body and is not easily influenced by external traction;

injecting water or gas into the ureteral cavity space between the two balloons through the fourth channel 15 and the first opening 18 to expand the ureter; urine produced in the kidney is discharged to the outside of the body through the tip drainage port 11 and the first passage 12; urine within the bladder will exit the body through the second opening 19 and the fifth passage 16.

Example two:

referring to fig. 3, the present embodiment is modified based on the first embodiment as follows:

annular convex parts 60 are arranged on the peripheral sides of the first balloon 20, the second balloon 30 and the bladder balloon 40; the annular bulge 60 is communicated with the corresponding balloon I20 or the balloon II 30 or the bladder balloon 40; when the first balloon 20, the second balloon 30 and the bladder balloon 40 are not expanded, the annular convex part 60 and the surface of the first balloon 20 or the second balloon 30 or the bladder balloon 40 are combined into a smooth surface, so that the first balloon 20, the second balloon 30 and the bladder balloon can enter the human body more smoothly.

In a preferred embodiment, the axial direction of the annular protrusion 60 is parallel to the axial direction of the ureteral catheter 10.

In the preferred embodiment, the annular protrusion 60 of the bladder balloon 40 is located on the side away from the balloon two 30.

In a preferred embodiment, the device further comprises a constant-pressure water replenishing device or a constant-pressure air replenishing device, wherein the constant-pressure water replenishing device or the constant-pressure air replenishing device is a device capable of replenishing water or gas at constant pressure; in this embodiment, a constant pressure water replenishing device 50 is preferably adopted, and the constant pressure water replenishing device 50 is connected with the fourth channel 15; the constant pressure water supply device 50 may preferably be an automatic water supply valve, and the automatic water supply valve may automatically supply water to the fourth channel 15 according to a set pressure value, so that the water pressure is kept in a constant pressure state.

The working process of the embodiment:

an operation side guide wire is placed under a cystoscope, and then a double-balloon ureteral liquid-gas expansion pipeline suite with a urethral catheterization function is placed into a ureter from the outside of a human body through a urethra and a bladder along the guide wire, so that the first balloon 20 and the second balloon 30 are positioned in the ureter, and the bladder balloon 40 is positioned at the bladder; then, water or air is injected into the first balloon 20 and the second balloon 30 through the second channel 13 and the third channel 14, so that the first balloon 20, the second balloon 30 and the corresponding annular bulge 60 are expanded together to block the ureter, and the annular bulge 60 serves as a sealing ring to enable the first balloon 20 and the second balloon 30 to be better attached to the inner wall of the ureter; water or air is injected into the bladder balloon 40 through the sixth channel 17, the bladder balloon 40 and the corresponding annular bulge 60 expand and clamp the bladder neck position between the bladder and the urethra, so that the ureteral catheter 10 is integrally fixed in a human body and is not easily influenced by external traction;

injecting water or gas into the ureteral cavity space between the two balloons through the fourth channel 15 and the first opening 18 to expand the ureter; the constant-pressure water replenishing device 50 can be used for detecting the pressure of the fourth channel 15 and the pressure of the blocked ureter so as to regulate and control the liquid and gas injected into the fourth channel 15, ensure that the ureter is expanded to a proper size and maintain the preset pressure level of the ureter;

urine produced in the kidney is discharged to the outside of the body through the tip drainage port 11 and the first passage 12; urine within the bladder will exit the body through the second opening 19 and the fifth passage 16.

The safety problem of the utility model with the use of liquid gas to expand the ureters is briefly described as follows:

urologists are all aware of: when a calculus is blocked at the lower section of a ureter, urine generated by a kidney cannot flow out, the urine with certain pressure is gathered in the ureter and a kidney collecting system, and at the moment, the whole ureter, a renal pelvis and the kidney collecting system (a place for collecting and discharging the urine in the kidney) are expanded, so that the most obvious upper section of the ureter is expanded, but the lower section is also well expanded, but the upper section is well expanded, interrupted and slightly expanded or not expanded; or the bulging expansion of a certain ureter section and a certain ureter point;

the pressure of liquid used for dilating the ureter can be accurately controlled, and can be fixed at the intrarenal pressure when the kidney cannot discharge urine when the ureter is obstructed by stones, or can be set at about the pressure; rather than a rapid, uncontrolled total water injection, and the amount of pressure in the ureter that is measured when the water fills the ureter, and the diameter of the ureter at various locations.

Compared with the prior art, the ureter is blocked by the first balloon and the second balloon, and then gas or liquid is injected into the ureter by the first opening, so that the purpose of expanding the ureter is achieved; through setting up fifth passageway and second opening, can make the second opening arrange the bladder in, the urine accessible second opening in the bladder flows to the fifth passageway, and then realizes the purpose of bladder urine drainage, and convenience of customers discharges the urine in the bladder, need not to imbed a ureter into toward human body again, reduces and inserts the degree of difficulty and damage risk.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (9)

1. Double-balloon ureteral fluid-gas expansion pipeline kit with urethral catheterization function, which is characterized by comprising: one end of the ureteral catheter is provided with a tip drainage port, one side, close to the tip drainage port, of the ureteral catheter is provided with a first balloon, and one side, far away from the first balloon, of the ureteral catheter is provided with a second balloon; a first channel, a second channel, a third channel, a fourth channel and a fifth channel are sequentially arranged at one end of the ureteral catheter far away from the first balloon; the first channel is communicated with the tip drainage passage opening, the second channel is communicated with the first balloon, and the third channel is communicated with the second balloon; a first opening and a second opening are formed in one side of the ureteral catheter; the first opening is positioned between the first balloon and the second balloon and communicated with the fourth channel; the second opening is positioned on one side far away from the first balloon and the second balloon and communicated with the fifth channel; the first channel coincides with the ureteral catheter.

2. The double balloon ureteral liquid and gas dilatation catheter kit with catheterization function of claim 1, further comprising a bladder balloon; the bladder balloon is used for being placed at the position of the bladder neck of a human body and is arranged on one side, away from the balloon II, of the ureteral catheter; a sixth channel is further arranged at one end, away from the first balloon, of the ureteral catheter and is communicated with the bladder balloon; the second opening is located between the second balloon and the bladder balloon.

3. The double-balloon ureteral liquid and gas dilatation catheter kit with catheterization function of claim 1, wherein the diameter of the tube body of the ureteral catheter is 8Fr-13 Fr.

4. The dual balloon ureteral liquid and gas dilatation catheter kit with catheterization function of claim 2, wherein the first, second, third, fourth, fifth, sixth channels have a diameter of 1.5Fr-2 Fr.

5. The dual balloon ureteral liquid-gas expansion conduit kit with the catheterization function of claim 1, wherein the cross-section of the first, second, third, fourth, fifth and sixth channels is circular.

6. The double-balloon ureteral liquid and gas dilatation catheter kit with the catheterization function of claim 2, wherein the first balloon, the second balloon and the bladder balloon are provided with annular protrusions on the peripheral sides; the annular bulge part is communicated with the corresponding balloon I or balloon II or bladder balloon; when the first balloon, the second balloon and the bladder balloon are not expanded, the annular convex parts and the surfaces of the first balloon, the second balloon or the bladder balloon are combined into a smooth surface.

7. The double balloon ureteral liquid and gas dilatation catheter kit with catheterization function of claim 6, wherein the axial direction of the annular protrusion is parallel to the axial direction of the ureteral catheter.

8. The double balloon ureteral liquid and gas dilatation catheter kit with catheterization function of claim 7, wherein the annular bulge of the bladder balloon surface is located on the side away from the balloon two.

9. The double-balloon ureteral liquid-gas expansion conduit kit with the urethral catheterization function according to claim 1, further comprising a constant-pressure water supplement device or a constant-pressure gas supplement device; and the constant-pressure water supplementing device or the constant-pressure air supplementing device is connected with the fourth channel.

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