CN216020965U - Ureter expansion pipe external member - Google Patents

Abstract

The utility model relates to a ureteral dilation pipeline kit, which comprises a ureteral catheter, wherein one end of the ureteral catheter is provided with a drainage port; a columnar bag body and a first channel are arranged outside the ureteral catheter, and the outer side surface of the ureteral catheter is wrapped by the columnar bag body and the first channel; the columnar bag body is positioned at one side close to the drainage channel opening; the first channel is positioned at one side far away from the drainage channel opening, and the columnar bag body is communicated with the first channel; the first channel extends to the other end of the ureteral catheter. The utility model utilizes the columnar bag body to be arranged in the ureter, and further utilizes the first channel to inject gas or liquid into the columnar bag body, thereby achieving the purpose of expanding the ureter; urine produced in the kidney can be discharged into the ureteral catheter through the drainage port, and then is discharged from the other end of the ureteral catheter, so that the urine produced in the kidney can be conveniently discharged.

Description

Ureter expansion pipe external member

Technical Field

The utility model relates to the technical field of ureter soft lens operation treatment, in particular to a ureter expansion pipeline kit.

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.

However, the tube structure of the patent is complicated, so that it is necessary to provide a ureteral dilation tube set with a simpler structure for the medical staff to choose.

SUMMERY OF THE UTILITY MODEL

In view of this, it is an object of the present invention to overcome the disadvantages and shortcomings of the prior art and to provide a ureteral dilation catheter set.

The ureteral dilation pipeline kit comprises a ureteral catheter, wherein one end of the ureteral catheter is provided with a drainage port; a columnar bag body and a first channel are arranged outside the ureteral catheter, and the outer side surface of the ureteral catheter is wrapped by the columnar bag body and the first channel; the columnar bag body is positioned at one side close to the drainage channel opening; the first channel is positioned at one side far away from the drainage channel opening, and the columnar bag body is communicated with the first channel; the first channel extends to the other end of the ureteral catheter.

Further, the expanded diameter of the cylindrical balloon is larger than the diameter of the first channel.

Furthermore, the flow guide channel opening is conical.

Further, a bladder balloon arranged in the bladder is arranged outside the first channel; a second channel and a third channel are arranged in one end of the first channel, which is far away from the columnar bag body; the bladder balloon is in communication with a second channel; an opening is formed in the outer side of the first channel, the opening is communicated with the third channel, and the opening is located between the bladder balloon and the columnar balloon.

Furthermore, an annular bulge part is arranged on the peripheral side of the bladder balloon; the annular bulge is in communication with the bladder balloon; when the bladder balloon is not expanded, the annular bulge and the surface of 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 of the bladder balloon surface is located on a side away from the first channel.

Further, the diameter of the columnar balloon is 8Fr-12 Fr.

Further, the diameters of the first channel, the second channel and the third channel are 1.5Fr-4 Fr.

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

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

(1) the columnar bag body is arranged in the ureter, and then gas or liquid is injected into the columnar bag body by the first channel, so that the aim of expanding the ureter is fulfilled; urine generated in the kidney can be discharged into the ureteral catheter through the drainage port and then discharged from the other end of the ureteral catheter, so that the urine generated in the kidney can be conveniently discharged;

(2) the drainage port is conical, so that the drainage port can be conveniently inserted into a ureter, and the tail end of the drainage port is round and blunt, so that the damage of the drainage port to the ureter is reduced;

(3) the opening can be arranged in the bladder by arranging the second channel and the opening, and urine in the bladder can flow to the second channel through the opening, so that the aim of bladder urine drainage is fulfilled, a user can conveniently discharge the urine in the bladder, a urinary catheter does not need to be arranged in a human body, and the insertion difficulty and the injury risk are reduced;

(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 pressure of the columnar sac body can be directly measured by arranging the constant-pressure water supplementing device or connecting the constant-pressure water supplementing device with the first channel, so that the liquid and the gas injected into the first channel can be manually or automatically regulated to reach the set pressure, and the ureter is ensured to be expanded to the proper diameter;

(4) through setting up cyclic annular bellying, make bladder sacculus accessible cyclic annular bellying block the bladder neck position between bladder and the urethra better, because the cyclic annular bellying on bladder sacculus surface is located the one side of keeping away from first passageway, usable this cyclic annular bellying blocks the bladder neck position between bladder and the urethra, avoids whole bladder sacculus to block up in the urethra, causes the patient to be uncomfortable.

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 structural diagram of a ureteral dilation catheter set according to a first embodiment;

fig. 2 is a schematic diagram of an operation state of the ureteral dilation catheter set according to the first embodiment;

fig. 3 is a schematic structural view of the ureter extension tube set of the second embodiment.

In the figure: 10. a ureteral catheter; 11. a drainage port; 12. a columnar balloon; 13. a first channel; 14. a second channel; 15. A third channel; 16. a bladder balloon; 17. an opening; 18. an annular boss; 20. constant pressure water supplement device.

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 "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; 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 ureteral dilation tube set of the present embodiment includes a ureteral catheter 10, wherein one end of the ureteral catheter 10 is provided with a drainage port 11; a columnar bag body 12 and a first channel 13 are arranged outside the ureteral catheter 10, and the outer side surface of the ureteral catheter 10 is wrapped by the columnar bag body 12 and the first channel 13; the columnar bag body 12 is positioned at one side close to the drainage channel opening 11; the first channel 13 is positioned at one side far away from the drainage channel opening 11, and the columnar capsule body 12 is communicated with the first channel 13; the first channel 13 extends to the other end of the ureteral catheter 10.

With particular reference to fig. 2, which is a schematic diagram of the expanded operation of cylindrical balloon 12, the expanded diameter of cylindrical balloon 12 is greater than the diameter of first channel 13.

In the preferred embodiment, the inlet opening 11 is conical.

In the preferred embodiment, the diameter of the cylindrical balloon 12 is 8Fr-12Fr, and the preferred embodiment is 8 Fr;

in the preferred embodiment, the diameter of the first channel 13, the second channel 14 and the third channel 15 is 1.5Fr-4Fr, and in the preferred embodiment, the diameter of the first channel 13 is 4Fr, and the diameter of the second channel 14 and the third channel 15 is 1.5 Fr.

The working process of the embodiment:

the columnar balloon body 12 is arranged in the ureter, and then gas or liquid is injected into the columnar balloon body 12 by the first channel 13, so that the purpose of expanding the ureter is achieved; urine generated in the kidney can be discharged into the ureteral catheter 10 through the drainage port 11 and then discharged from the other end of the ureteral catheter 10, so that the urine generated in the kidney can be conveniently discharged.

Example two:

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

specifically, a bladder balloon 16 arranged in the bladder is arranged outside the first channel 13; a second channel 14 and a third channel 15 are arranged in one end of the first channel 13 far away from the columnar capsule body 12; the bladder balloon 16 is in communication with the second channel 14; an opening 17 is arranged on the outer side of the first channel 13, the opening 17 is communicated with the third channel 15, and the opening 17 is positioned between the bladder balloon 16 and the columnar balloon body 12.

Specifically, an annular bulge 18 is arranged on the periphery of the bladder balloon 16; the annular boss 18 is in communication with the bladder balloon 16; when the bladder balloon 16 is not expanded, the annular convex portion 18 and the surface of the bladder balloon 16 are combined into a smooth surface, so that the bladder balloon 16 can enter the human body more smoothly.

Specifically, the axial direction of the annular convex portion 18 is parallel to the axial direction of the ureteral catheter 10.

Specifically, the annular bulge 18 of the bladder balloon 16 surface is located on the side away from the first channel 13.

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 is preferably adopted, and the constant pressure water replenishing device 20 is connected with the first channel 13; preferably, the constant pressure water replenishing device 20 may be an automatic water replenishing valve, and the automatic water replenishing valve may automatically replenish water to the first channel 13 according to a set pressure value, so that the water pressure is kept in a constant pressure state.

The working process of the embodiment:

the columnar balloon body 12 is arranged in the ureter, and then gas or liquid is injected into the columnar balloon body 12 by the first channel 13, so that the purpose of expanding the ureter is achieved; the pressure of the first channel 13 and the columnar sac body 12 can be detected by using the constant-pressure water supplementing device 20 so as to regulate and control the liquid injected into the first channel 13 and ensure that the ureter is expanded to a proper size;

urine generated in the kidney can be discharged into the ureteral catheter 10 through the drainage port 11 and then discharged from the other end of the ureteral catheter 10, so that the urine generated in the kidney can be conveniently discharged;

water or air can be injected into the bladder balloon 16 through the second channel 14, the bladder balloon 16 and the corresponding annular convex part 18 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;

by arranging the annular convex part 18, the bladder balloon 16 can better clamp the position of the bladder neck between the bladder and the urethra through the annular convex part 18, and because the annular convex part 18 on the surface of the bladder balloon 16 is positioned on the side far away from the first channel 13, the position of the bladder neck between the bladder and the urethra can be clamped by using the annular convex part 18, so that the whole bladder balloon 16 is prevented from being blocked in the urethra, and discomfort is caused to a patient.

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 (10)

1. Ureteral dilation catheter kit, comprising:

one end of the ureteral catheter is provided with a drainage port; a columnar bag body and a first channel are arranged outside the ureteral catheter, and the outer side surface of the ureteral catheter is wrapped by the columnar bag body and the first channel; the columnar bag body is positioned at one side close to the drainage channel opening; the first channel is positioned at one side far away from the drainage channel opening, and the columnar bag body is communicated with the first channel; the first channel extends to the other end of the ureteral catheter.

2. The ureteral dilation catheter kit of claim 1, wherein the expanded diameter of the cylindrical balloon is greater than the diameter of the first channel.

3. The ureteral dilation catheter kit of claim 1, wherein the drainage port is conical.

4. The ureteral dilation catheter kit of claim 1, wherein a bladder balloon is disposed outside the first channel at the bladder neck; a second channel and a third channel are arranged in one end of the first channel, which is far away from the columnar bag body; the bladder balloon is in communication with a second channel; an opening is formed in the outer side of the first channel, the opening is communicated with the third channel, and the opening is located between the bladder balloon and the columnar balloon.

5. The ureteral dilation catheter kit of claim 4, wherein a circumferential side of the bladder balloon is provided with an annular protrusion; the annular bulge is in communication with the bladder balloon; when the bladder balloon is not expanded, the annular bulge and the surface of the bladder balloon are combined into a smooth surface.

6. The ureteral dilation catheter kit of claim 5, wherein an axial direction of the annular protrusion is parallel to an axial direction of the ureteral catheter.

7. The ureteral dilation catheter kit of claim 6, wherein the annular protrusion of the bladder balloon surface is located on a side distal from the first channel.

8. The ureteral dilation catheter kit of claim 7, wherein the diameter of the cylindrical balloon is 8Fr-12 Fr.

9. The ureteral dilation catheter kit of claim 8, wherein the first, second, and third channels have a diameter of 1.5Fr-4 Fr.

10. The ureteral dilation catheter kit of claim 1, further comprising a constant pressure supplemental water device or a constant pressure supplemental water device; the constant-pressure water supplementing device or the constant-pressure air supplementing device is connected with the first channel.

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