CN114224273A

CN114224273A - Double-balloon three-channel ureteral dilatation catheter kit and use method thereof

Info

Publication number: CN114224273A
Application number: CN202111580269.8A
Authority: CN
Inventors: 李强; 陈汉威; 黄国标; 邹戈; 姚伟祥; 陈冬雅; 关智臻; 林笑玲
Original assignee: Cardiovascular Disease Institute of Guangzhou Panyu Central Hospital
Current assignee: Cardiovascular Disease Institute of Guangzhou Panyu Central Hospital
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-03-25

Abstract

The invention relates to a ureteral dilatation catheter kit with double saccules and three channels and a using method thereof, which comprises a ureteral catheter and a guide wire; one end of the ureteral catheter is provided with a first balloon, and one side, away from the first balloon, of the ureteral catheter is provided with a second balloon; a first channel, a second channel and a third channel are sequentially arranged at one end, away from the first balloon, of the ureteral catheter, the first channel is communicated with the first balloon, the second channel is communicated with the second balloon, an opening is formed in the side face of the ureteral catheter, the opening is located between the first balloon and the second balloon, and the opening is communicated with the third channel; the top end of the first balloon is provided with a first joint; the top end of the guide wire is provided with a second joint; the first joint and the second joint are detachably connected. The invention reduces the kidney drainage channel, and adds the independent packaged beard-shaped guide wire, so that the whole circumference of the pipeline is reduced, and the ureteral catheter can be conveniently placed into the ureter by using the guide wire.

Description

Double-balloon three-channel ureteral dilatation catheter kit and use method thereof

Technical Field

The invention relates to the technical field of ureter soft lens operation treatment, in particular to a ureter expansion pipeline kit with double balloons and three channels and a using method thereof.

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.

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.

This project team has applied for patent "a double sacculus pipeline cover spare for expanding ureter", application number CN201810563731.5, and this patent is equipped with the four-channel and possesses the kidney drainage mouth, can avoid the intrarenal urine can not flow out the renal hypertension that leads to. However, the ureter is a narrow conduit, and has a four-channel structure with stable function, and the tube body of the ureter is difficult to design to be too thin, so that the difficulty of placing the ureter is obviously increased.

Disclosure of Invention

Based on this, it is an object of the present invention to overcome the disadvantages and drawbacks of the prior art and to provide a double balloon triple channel ureteral dilation catheter kit and a method of use thereof.

The ureteral dilatation catheter kit with double balloons and three channels comprises a ureteral catheter and a guide wire;

one end of the ureteral catheter is provided with a first balloon, and one side, away from the first balloon, of the ureteral catheter is provided with a second balloon; a first channel, a second channel and a third channel are sequentially arranged at one end, away from the first balloon, of the ureteral catheter, the first channel is communicated with the first balloon, the second channel is communicated with the second balloon, an opening is formed in the side face of the ureteral catheter, the opening is located between the first balloon and the second balloon, and the opening is communicated with the third channel; the top end of the first balloon is provided with a first joint;

the top end of the guide wire is provided with a second joint; the first joint and the second joint are detachably connected.

Further, the guide wire is a whisker-shaped guide wire.

Further, the second joint is in a J shape; the top end of the first balloon is provided with a protruding portion, the protruding portion is provided with a through hole, and the second connector penetrates through the through hole.

Further, the device also comprises a hydrostatic pressure measuring device; the hydrostatic pressure measuring device is connected with the third channel.

Further, the device also comprises a negative pressure mechanism; the negative pressure mechanism is connected with the first channel and the second channel.

Further, the negative pressure mechanism comprises a negative pressure pipe and a driving mechanism; the negative pressure pipe is provided with two output ports which are respectively communicated with the first channel and the second channel; the input port of the negative pressure pipe is connected with the driving mechanism, and the driving mechanism enables negative pressure to be generated in the negative pressure pipe.

Further, the driving mechanism comprises an air extractor, and the air extractor is connected with the input port of the negative pressure pipe.

Further, the top end of the first balloon is provided with an annular convex strip, and the annular convex strip is arranged around the outer side of the protruding portion.

The invention also provides a using method of the ureteral dilatation catheter kit with double balloons and three channels, which is used for ureteral dilatation and comprises the following steps:

the method comprises the following steps: connecting a ureteral catheter and a guide wire through a first connector and a second connector, enabling the ureteral catheter and the guide wire to pass through a large-channel cystoscope working channel, and placing a pipeline sleeve into a proper position of the ureter under the pushing of a pushing pipe;

step two: simultaneously injecting sterile normal saline into the first channel and the second channel, filling the first balloon and the second balloon, and blocking a ureter section between the first balloon and the second balloon;

step three: injecting sterile normal saline into the third channel, discharging the sterile normal saline from the opening, and expanding the ureter section between the first balloon and the second balloon; detecting the pressure in the ureter through a hydrostatic pressure measuring device, maintaining the pressure of the third channel and the ureter section between the first balloon and the second balloon at a set value, and maintaining for 10 seconds;

step four: and after the ureter is expanded, the air extractor is used for extracting the liquid in the first sacculus and the second sacculus so as to extract the ureter catheter and the guide wire.

Compared with the prior art, the invention has the following beneficial effects:

according to the ureteral dilatation catheter kit with double balloons and three channels and the using method thereof, disclosed by the invention, the number of kidney drainage channels is reduced, the independent packaged whisker-shaped guide wire is additionally arranged, the ureteral catheter and the guide wire can be connected through the first joint and the second joint, the integral circumference of the catheter is reduced, and the ureteral catheter can be conveniently placed into a ureter by utilizing the guide wire; because the kidney produces urine in a relatively slow process, if the expansion can be completed within about 30 seconds and the liquid in the two balloons is pumped out, the intrarenal pressure rise caused by the accumulation of urine in the kidney can not be caused;

the second joint is J-shaped, so that the second joint can not scratch the inner wall of the ureter, better protect the ureter and better place a ureter catheter and a guide wire; the top end of the first balloon is provided with an annular convex strip, so that after the air extractor extracts liquid in the first balloon and the second balloon, the first balloon is contracted and tightened, and the annular convex strip is used for locking and surrounding the bulge part and the J-shaped second joint, so that when the guide wire and the ureteral catheter are extracted, the second joint cannot contact the inner wall of the ureter, and the second joint is prevented from scratching the inner wall of the ureter;

according to the invention, the hydrostatic pressure measuring device is arranged to be connected with the third channel, so that the pressure of the blocked ureter can be directly measured, the liquid and gas injected into the third channel can be regulated and controlled, and the ureter can be expanded to a proper size.

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

Drawings

Fig. 1 is a schematic structural view of a ureteral catheter of the present invention;

FIG. 2 is a schematic structural view of a guidewire of the present invention;

fig. 3 is a schematic structural diagram of the first balloon of the present invention.

In the figure: 10. a ureteral catheter; 11. a first channel; 12. a second channel; 13. a third channel; 14. an opening; 20. a first balloon; 21. a first joint; 211. a boss portion; 212. perforating; 22. an annular rib; 30. a second balloon; 40. a hydrostatic pressure measuring device; 50. a guide wire; 51. a second joint; 61. a negative pressure tube; 62. an air extractor.

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.

Referring to fig. 1 to 3, the ureteral dilation catheter set with double balloons and three channels of the present embodiment includes a ureteral catheter 10 and a guide wire 50;

specifically, one end of the ureteral catheter 10 is provided with a first balloon 20, and one side, away from the first balloon 20, of the ureteral catheter 10 is provided with a second balloon 30; a first channel 11, a second channel 12 and a third channel 13 are sequentially arranged at one end, away from the first balloon 20, of the ureteral catheter 10, the first channel 11 is communicated with the first balloon 20, the second channel 12 is communicated with the second balloon 30, an opening 14 is arranged on the side surface of the ureteral catheter 10, the opening 14 is located between the first balloon 20 and the second balloon 30, and the opening 14 is communicated with the third channel 13; the top end of the first balloon 20 is provided with a first joint 21;

more specifically, the top end of the first balloon 20 is provided with an annular protruding strip 22, and the annular protruding strip 22 is arranged around the outer side of the protruding portion 211.

Specifically, a second joint 51 is arranged at the top end of the guide wire 50; the first joint 21 and the second joint 51 are detachably connected;

more specifically, the guide wire 50 is a whisker-shaped guide wire 50;

more specifically, the second joint 51 is "J-shaped"; the top end of the first balloon 20 is provided with a convex part 211, the convex part 211 is provided with a through hole 212, and the second joint 51 penetrates through the through hole 212.

In the preferred embodiment, a hydrostatic pressure measuring device 40 is further included; the hydrostatic pressure measuring device 40 is connected with the third channel 13; more specifically, the constant pressure pump can be a water injection pump or a liquid injection pump with controllable and settable pressure.

In a preferred embodiment, the device further comprises a negative pressure mechanism; the negative pressure mechanism is connected with the first channel 11 and the second channel 12; specifically, the negative pressure mechanism comprises a negative pressure pipe 61 and a driving mechanism; the negative pressure pipe 61 is provided with two output ports which are respectively communicated with the first channel 11 and the second channel 12; an input port of the negative pressure pipe 61 is connected with the driving mechanism, and the driving mechanism enables negative pressure to be generated in the negative pressure pipe 61; the driving mechanism is preferably an air extractor 62, and the air extractor 62 is connected with the input port of the negative pressure pipe 61.

In the preferred embodiment, the diameter of the tube body of the ureteral catheter 10 is 8Fr-12Fr, and the preferred embodiment is 9 Fr.

In the preferred embodiment, the diameter of the first channel 11, the second channel 12 and the third channel 13 is 2.5Fr-4Fr, and the preferred embodiment is 2.5 Fr.

The use method of the ureteral dilatation catheter kit with the double balloons and the three channels in the embodiment utilizes the ureteral dilatation catheter kit with the double balloons and the three channels to perform ureteral dilatation, and comprises the following steps:

the method comprises the following steps: connecting the ureteral catheter 10 and the guide wire 50 through the first connector 21 and the second connector 51, and placing the ureteral catheter 10 and the guide wire 50 into a proper position of the ureter through a large-channel cystoscope working channel under the pushing of a pushing tube; the first balloon 20 is positioned at the top end of the ureteral catheter 10, and the second balloon 30 is positioned at the position, which is 20-30 cm away from the first balloon, of the ureteral catheter 10;

step two: simultaneously filling sterile normal saline into the first channel 11 and the second channel 12, filling the first balloon 20 and the second balloon 30, and blocking a ureter section between the first balloon 20 and the second balloon 30;

step three: sterile normal saline is injected into the third channel 13, the sterile normal saline is discharged from the opening 14, and a ureter section between the first balloon 20 and the second balloon 30 is expanded; the pressure in the ureter is detected by a hydrostatic pressure measuring device 40, the pressure of the third channel 13 and the ureter section between the first balloon 20 and the second balloon 30 is maintained at a set value, and the pressure is maintained for 10 seconds;

step four: after the ureter is dilated, the fluid in the first balloon 20 and the second balloon 30 is extracted by the air extractor 62, and the ureter catheter 10 and the guide wire 50 are further extracted.

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 invention. 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

1. Ureteral dilatation pipe external member of two sacculus threephoes, its characterized in that includes:

the top end of the guide wire is provided with a second connector; the first joint and the second joint are detachably connected.

2. The dual balloon three channel ureteral dilation catheter kit of claim 1, wherein the guidewire is a whisker guidewire.

3. The dual balloon three channel ureteral dilation catheter kit of claim 2, wherein the second junction is "J-shaped"; the top end of the first balloon is provided with a protruding portion, the protruding portion is provided with a through hole, and the second connector penetrates through the through hole.

4. The dual balloon three channel ureteral dilation catheter kit of claim 3, further comprising a hydrostatic pressure measurement device; the hydrostatic pressure measuring device is connected with the third channel.

5. The dual balloon three channel ureteral dilation catheter kit of claim 4, further comprising a negative pressure mechanism; the negative pressure mechanism is connected with the first channel and the second channel.

6. The dual balloon three channel ureteral dilation catheter kit of claim 5, wherein the negative pressure mechanism comprises a negative pressure tube and a drive mechanism; the negative pressure pipe is provided with two output ports which are respectively communicated with the first channel and the second channel; the input port of the negative pressure pipe is connected with the driving mechanism, and the driving mechanism enables negative pressure to be generated in the negative pressure pipe.

7. The dual balloon three channel ureteral dilation catheter kit of claim 6, wherein the drive mechanism comprises an aspirator, the aspirator connected to an input port of the negative pressure tube.

8. The double-balloon three-channel ureteral dilation catheter kit according to claim 7, wherein the top end of the first balloon is provided with an annular rib, and the annular rib is arranged around the outer side of the protruding portion.

9. A method for using the double-balloon three-channel ureteral dilatation catheter kit, which is used for ureteral dilatation and comprises the following steps of:

step two: simultaneously injecting sterile normal saline into the first channel and the second channel, and filling the first balloon and the second balloon;

step three: injecting sterile normal saline into the third channel, discharging the sterile normal saline from the opening, and expanding the ureter section between the first balloon and the second balloon; and (3) detecting the pressure in the ureter through a hydrostatic pressure measuring device, maintaining the pressure of the third channel and the ureter section between the first balloon and the second balloon at a set value, and maintaining for 10 seconds.

10. The method of using a dual balloon three channel ureteral dilation catheter kit of claim 9, further comprising the steps of four: and after the ureter is expanded, the air extractor is used for extracting the liquid in the first sacculus and the second sacculus so as to extract the ureter catheter and the guide wire.